National Library of Energy BETA

Sample records for hilltop microwave communication

  1. Environmental assessment: South microwave communication facilities

    SciTech Connect (OSTI)

    Not Available

    1989-06-01

    Western Area Power Administration (Western) is proposing to construct, operate, and maintain eight microwave repeater stations in southwestern Colorado, southeastern Utah, and northern Arizona, in order to meet the minimum fade criteria established by the Western Systems Coordinating Council (WSCC) for the operation and protection of electric power systems. The proposed microwave facilities would increase the reliability of communication. This environmental assessment (EA) describes the existing environmental conditions and the impacts from construction of the eight microwave communication facilities. The EA was prepared in compliance with the National Environmental Policy Act of 1969, the Council on Environmental Quality Regulations (40 CFR 1500-1508), and the Department of Energy Guidelines (52 FR 47662, December 15, 1987). The proposed project would consist of constructing eight microwave facilities, each of which would include a self-supported lattice tower, an equipment building, a propane tank, distribution lines to provide electric power to the sites, and access roads to the sites. The facilities would be constructed in San Miguel and Montezuma Counties in Colorado, San Juan County, Utah, and Navajo, Apache, Coconino, and Yavapai Counties in Arizona. 20 refs., 2 figs., 2 tabs.

  2. Looking From A Hilltop: Automotive Propulsion System Technology...

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

    Looking From A Hilltop: Automotive Propulsion System Technology Looking From A Hilltop: Automotive Propulsion System Technology Outlook for global fuel economy requirements and...

  3. RECOMMENDATION FORM UMBC Office of Financial Aid & Scholarships, 1000 Hilltop Circle, Baltimore, MD 21250

    E-Print Network [OSTI]

    Biswas, Animikh

    RECOMMENDATION FORM UMBC Office of Financial Aid & Scholarships, 1000 Hilltop Circle, Baltimore, MD of Financial Aid & Scholarships 1000 Hilltop Circle Baltimore, MD 21250 Name

  4. Hilltop, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy Resources JumpNew Jersey: Energy Resources Jump to:Hilltop, Ohio: Energy

  5. Microwave Laminate PCB Compatible RF MEMS Technology for Wireless Communication Systems

    E-Print Network [OSTI]

    De Flaviis, Franco

    Microwave Laminate PCB Compatible RF MEMS Technology for Wireless Communication Systems * Bedri A microwave laminate printed circuit board (PCB) compatible RF MEMS technology for wireless communication systems. This technology is novel in that RF MEMS components, particularly RF MEM switches, can

  6. COMMUNICATIONS Deposition of aligned bamboo-like carbon nanotubes via microwave

    E-Print Network [OSTI]

    of carbon nanotubes on nickel,11 but twist-like defects also exist along carbon nano- tubes. The abilityCOMMUNICATIONS Deposition of aligned bamboo-like carbon nanotubes via microwave plasma enhanced for publication 31 August 2000 Aligned multiwall carbon nanotubes have been grown on silicon substrates

  7. Form: REG113 2007 University of Maryland, Baltimore County 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2500 Questions? Email: records@umbc.edu

    E-Print Network [OSTI]

    Suri, Manil

    __________________________________________________________________________________________________________________________________ © 2007 University of Maryland, Baltimore County · 1000 Hilltop Circle, Baltimore, MD 21250 · 410

  8. Form: REG112 2007 University of Maryland, Baltimore County 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2500 Questions? Email: records@umbc.edu

    E-Print Network [OSTI]

    Suri, Manil

    __________________________________________________________________________________________________________________________________ © 2007 University of Maryland, Baltimore County · 1000 Hilltop Circle, Baltimore, MD 21250 · 410

  9. Form: REG102 2007 University of Maryland, Baltimore County 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2500 Questions? Email: records@umbc.edu

    E-Print Network [OSTI]

    Suri, Manil

    __________________________________________________________________________________________________________________________________ © 2007 University of Maryland, Baltimore County · 1000 Hilltop Circle, Baltimore, MD 21250 · 410

  10. 2007 University of Maryland, Baltimore County 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2500 Questions? Email: records@umbc.edu OFFICE OF THE REGISTRAR

    E-Print Network [OSTI]

    Suri, Manil

    University of Maryland, Baltimore County 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2500 Questions

  11. Updated February 2015 UMBC 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2729 Questions? Email: arc@umbc.edu Student Information (Please print)

    E-Print Network [OSTI]

    Suri, Manil

    Updated February 2015 UMBC · 1000 Hilltop Circle, Baltimore, MD 21250 · 410-455-2729 Questions IN EXCESS CREDITS #12;Updated February 2015 UMBC · 1000 Hilltop Circle, Baltimore, MD 21250 · 410

  12. Microwave thawing apparatus and method

    DOE Patents [OSTI]

    Fathi, Zakaryae; Lauf, Robert J.; McMillan, April D.

    2004-06-01

    An apparatus for thawing a frozen material includes: a microwave energy source; a microwave applicator which defines a cavity for applying microwave energy from the microwave source to a material to be thawed; and a shielded region which is shielded from the microwave source, the shielded region in fluid communication with the cavity so that thawed material may flow from the cavity into the shielded region.

  13. Applications for Microwave Generators in the Process Industries 

    E-Print Network [OSTI]

    Humphrey, J. L.; Vasilakos, N. P.

    1983-01-01

    Microwaves find widespread use in radar applications, in telephonic communications, and in the generation of thermal energy for heating. It is this last use that is of interest here. The use of microwave generators to dry heat-sensitive materials...

  14. Modeling microwave/electron-cloud interaction

    E-Print Network [OSTI]

    Mattes, M; Zimmermann, F

    2013-01-01

    Starting from the separate codes BI-RME and ECLOUD or PyECLOUD, we are developing a novel joint simulation tool, which models the combined effect of a charged particle beam and of microwaves on an electron cloud. Possible applications include the degradation of microwave transmission in tele-communication satellites by electron clouds; the microwave-transmission tecchniques being used in particle accelerators for the purpose of electroncloud diagnostics; the microwave emission by the electron cloud itself in the presence of a magnetic field; and the possible suppression of electron-cloud formation in an accelerator by injecting microwaves of suitable amplitude and frequency. A few early simulation results are presented.

  15. Microwave detector

    DOE Patents [OSTI]

    Meldner, H.W.; Cusson, R.Y.; Johnson, R.M.

    1985-02-08

    A microwave detector is provided for measuring the envelope shape of a microwave pulse comprised of high-frequency oscillations. A biased ferrite produces a magnetization field flux that links a B-dot loop. The magnetic field of the microwave pulse participates in the formation of the magnetization field flux. High-frequency insensitive means are provided for measuring electric voltage or current induced in the B-dot loop. The recorded output of the detector is proportional to the time derivative of the square of the envelope shape of the microwave pulse.

  16. REU: Interdisciplinary Program in High Performance Computing at UMBC http://www.umbc.edu/hpcreu Department of Mathematics and Statistics University of Maryland, Baltimore County 1000 Hilltop Circle, Baltimore, MD 21250 410-455-2412

    E-Print Network [OSTI]

    Suri, Manil

    ://www.umbc.edu/hpcreu © Department of Mathematics and Statistics · University of Maryland, Baltimore County · 1000 Hilltop Circle, Baltimore, MD 21250 · 410-455-2412 UMBC is an Equal Opportunity and Affirmative Action Institution Interdisciplinary Program in High Performance Computing University of Maryland, Baltimore County (UMBC) Summer 2010

  17. EE 402 Microwave and RF Circuits Aqeel Ahmad Qureshi

    E-Print Network [OSTI]

    Saskatchewan, University of

    EE 402 Microwave and RF Circuits Aqeel Ahmad Qureshi aqeel.ahmad@usask.ca Objective: There is currently an explosion in wireless communications at microwave and millimeter-wave frequencies, for both-effective and highly integrated devices and circuits are required. An understanding of modern microwave theory

  18. Microwave furnace having microwave compatible dilatometer

    DOE Patents [OSTI]

    Kimrey, H.D. Jr.; Janney, M.A.; Ferber, M.K.

    1992-03-24

    An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy. 2 figs.

  19. Microwave furnace having microwave compatible dilatometer

    DOE Patents [OSTI]

    Kimrey, Jr., Harold D. (Knoxville, TN); Janney, Mark A. (Knoxville, TN); Ferber, Mattison K. (Oak Ridge, TN)

    1992-01-01

    An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy.

  20. or a long time, micro-wave engineers have

    E-Print Network [OSTI]

    Hagness, Susan C.

    College in Hanover, New Hampshire, USA. M.A. Stuchly is with the University of Victoria in Victoria outlook? More so than for any other cancers, breast tumors have electrical properties at microwave of new generations of microwave researchers despite strong competition from wireless communication

  1. Continuous, real time microwave plasma element sensor

    DOE Patents [OSTI]

    Woskov, P.P.; Smatlak, D.L.; Cohn, D.R.; Wittle, J.K.; Titus, C.H.; Surma, J.E.

    1995-12-26

    Microwave-induced plasma is described for continuous, real time trace element monitoring under harsh and variable conditions. The sensor includes a source of high power microwave energy and a shorted waveguide made of a microwave conductive, refractory material communicating with the source of the microwave energy to generate a plasma. The high power waveguide is constructed to be robust in a hot, hostile environment. It includes an aperture for the passage of gases to be analyzed and a spectrometer is connected to receive light from the plasma. Provision is made for real time in situ calibration. The spectrometer disperses the light, which is then analyzed by a computer. The sensor is capable of making continuous, real time quantitative measurements of desired elements, such as the heavy metals lead and mercury. 3 figs.

  2. Continuous, real time microwave plasma element sensor

    DOE Patents [OSTI]

    Woskov, Paul P. (4 Ledgewood Dr., Bedford, MA 01730); Smatlak, Donna L. (10 Village Hill Rd., Belmont, MA 02178); Cohn, Daniel R. (26 Walnut Hill Rd., Chestnut Hill, MA 02167); Wittle, J. Kenneth (1740 Conestoga Rd., Chester Springs, PA 19425); Titus, Charles H. (323 Echo Valley La., Newton Square, PA 19072); Surma, Jeffrey E. (806 Brian La., Kennewick, WA 99337)

    1995-01-01

    Microwave-induced plasma for continuous, real time trace element monitoring under harsh and variable conditions. The sensor includes a source of high power microwave energy and a shorted waveguide made of a microwave conductive, refractory material communicating with the source of the microwave energy to generate a plasma. The high power waveguide is constructed to be robust in a hot, hostile environment. It includes an aperture for the passage of gases to be analyzed and a spectrometer is connected to receive light from the plasma. Provision is made for real time in situ calibration. The spectrometer disperses the light, which is then analyzed by a computer. The sensor is capable of making continuous, real time quantitative measurements of desired elements, such as the heavy metals lead and mercury.

  3. ECE342 Communication jingli@ece.lehigh.edu

    E-Print Network [OSTI]

    Li, Tiffany Jing

    ECE342 Communication Theory jingli@ece.lehigh.edu Introduction - 1 ECE 342 Communication Theory Communication Theory jingli@ece.lehigh.edu Introduction - 2 Communication Systems vExample of Digital Communication Systems q Wireline telephone channels q Microwave radio q Fiber optic channels q Satellite

  4. Microwave-emitting rotor, separator apparatus including same, methods of operation and design thereof

    DOE Patents [OSTI]

    Meikrantz, David H.

    2006-12-19

    An apparatus for use in separating, at least in part, a mixture, including at least one chamber and at least one microwave generation device configured for communicating microwave energy into the at least one chamber is disclosed. The rotor assembly may comprise an electric generator for generating electricity for operating the microwave generation device. At least one microwave generation device may be positioned within a tubular interior shaft extending within the rotor assembly. At least a portion of the tubular interior shaft may be substantially transparent to microwave energy. Microwave energy may be emitted in an outward radial direction or toward an anticipated boundary surface defined between a mixture and a separated constituent thereof. A method including flowing a mixture through at least one chamber and communicating microwave energy into the at least one chamber while rotating same is disclosed. Methods of operating a centrifugal separator and design thereof are disclosed.

  5. Microwave Radiometer (MWR) Handbook

    SciTech Connect (OSTI)

    Morris, VR

    2006-08-01

    The Microwave Radiometer (MWR) provides time-series measurements of column-integrated amounts of water vapor and liquid water. The instrument itself is essentially a sensitive microwave receiver. That is, it is tuned to measure the microwave emissions of the vapor and liquid water molecules in the atmosphere at specific frequencies.

  6. CX-003027: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    The Replacement of PacifiCorp?s Kennewick ? Dayton Hilltop Microwave Communication EquipmentCX(s) Applied: B1.7, B4.6Date: 06/22/2010Location(s): Benton County, WashingtonOffice(s): Bonneville Power Administration

  7. High brightness microwave lamp

    DOE Patents [OSTI]

    Kirkpatrick, Douglas A.; Dolan, James T.; MacLennan, Donald A.; Turner, Brian P.; Simpson, James E.

    2003-09-09

    An electrodeless microwave discharge lamp includes a source of microwave energy, a microwave cavity, a structure configured to transmit the microwave energy from the source to the microwave cavity, a bulb disposed within the microwave cavity, the bulb including a discharge forming fill which emits light when excited by the microwave energy, and a reflector disposed within the microwave cavity, wherein the reflector defines a reflective cavity which encompasses the bulb within its volume and has an inside surface area which is sufficiently less than an inside surface area of the microwave cavity. A portion of the reflector may define a light emitting aperture which extends from a position closely spaced to the bulb to a light transmissive end of the microwave cavity. Preferably, at least a portion of the reflector is spaced from a wall of the microwave cavity. The lamp may be substantially sealed from environmental contamination. The cavity may include a dielectric material is a sufficient amount to require a reduction in the size of the cavity to support the desired resonant mode.

  8. Microwave hemorrhagic stroke detector

    DOE Patents [OSTI]

    Haddad, Waleed S. (Dublin, CA); Trebes, James E. (Livermore, CA)

    2007-06-05

    The microwave hemorrhagic stroke detector includes a low power pulsed microwave transmitter with a broad-band antenna for producing a directional beam of microwaves, an index of refraction matching cap placed over the patients head, and an array of broad-band microwave receivers with collection antennae. The system of microwave transmitter and receivers are scanned around, and can also be positioned up and down the axis of the patients head. The microwave hemorrhagic stroke detector is a completely non-invasive device designed to detect and localize blood pooling and clots or to measure blood flow within the head or body. The device is based on low power pulsed microwave technology combined with specialized antennas and tomographic methods. The system can be used for rapid, non-invasive detection of blood pooling such as occurs with hemorrhagic stoke in human or animal patients as well as for the detection of hemorrhage within a patient's body.

  9. Microwave hemorrhagic stroke detector

    DOE Patents [OSTI]

    Haddad, Waleed S. (Dublin, CA); Trebes, James E. (Livermore, CA)

    2002-01-01

    The microwave hemorrhagic stroke detector includes a low power pulsed microwave transmitter with a broad-band antenna for producing a directional beam of microwaves, an index of refraction matching cap placed over the patients head, and an array of broad-band microwave receivers with collection antennae. The system of microwave transmitter and receivers are scanned around, and can also be positioned up and down the axis of the patients head. The microwave hemorrhagic stroke detector is a completely non-invasive device designed to detect and localize blood pooling and clots or to measure blood flow within the head or body. The device is based on low power pulsed microwave technology combined with specialized antennas and tomographic methods. The system can be used for rapid, non-invasive detection of blood pooling such as occurs with hemorrhagic stroke in human or animal patients as well as for the detection of hemorrhage within a patient's body.

  10. Filter!Demonstration Microwave!Office

    E-Print Network [OSTI]

    Filter!Demonstration in Microwave!Office muse #12;Objectives · Demonstrate!project!setup!in!Microwave

  11. Variable frequency microwave heating apparatus

    DOE Patents [OSTI]

    Bible, Don W. (Clinton, TN); Lauf, Robert J. (Oak Ridge, TN); Johnson, Arvid C. (Lake in the Hills, IL); Thigpen, Larry T. (Angier, NC)

    1999-01-01

    A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity (34) for testing or other selected applications. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a high-power microwave oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

  12. Microwave ion source

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Reijonen, Jani; Thomae, Rainer W.

    2005-07-26

    A compact microwave ion source has a permanent magnet dipole field, a microwave launcher, and an extractor parallel to the source axis. The dipole field is in the form of a ring. The microwaves are launched from the middle of the dipole ring using a coaxial waveguide. Electrons are heated using ECR in the magnetic field. The ions are extracted from the side of the source from the middle of the dipole perpendicular to the source axis. The plasma density can be increased by boosting the microwave ion source by the addition of an RF antenna. Higher charge states can be achieved by increasing the microwave frequency. A xenon source with a magnetic pinch can be used to produce intense EUV radiation.

  13. Microwave enhanced silica encapsulation of magnetic nanoparticles

    E-Print Network [OSTI]

    Park, Jeong Chan; Gilbert, Dustin A; Liu, Kai; Louie, Angelique Y.

    2012-01-01

    rapidly by using an ef?cient microwave irradiation method.8449 PAPER www.rsc.org/materials Microwave enhanced silicaachieved within 10 min via microwave irradiation after phase

  14. Information -Communication Communication des entreprises

    E-Print Network [OSTI]

    Sart, Remi

    Information - Communication 2 PARCOURS Communication des entreprises Communication et solidarité;2 Information - Communication UFR Langues Appliquées, Commerce et Communication PRÉSENTATION Objectifs La Licence Information et communication est destinée aux étudiants qui souhaitent suivre un parcours

  15. On communication complexity and universal compression

    E-Print Network [OSTI]

    Dhulipala, Anand

    2007-01-01

    2 Communication Model . . . . . . . . . . . . . . . . .communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . .communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  16. COMMUNICATIONS ANNEX B -COMMUNICATIONS

    E-Print Network [OSTI]

    and interoperable communications systems are essential to obtain the most complete information during emergency System (NIMS). Communications Equipment · Telephones, cellular or landline, are the primary means of the Brazos Valley Wide Area Communications System (BVWACS), most departments on campus have access to a radio

  17. Microwave and Radio Frequency Workshop

    Broader source: Energy.gov [DOE]

    At the Microwave and Radio Frequency Workshop (held in Long Beach, CA, on July 25, 2012), academic and industry experts discussed the existing and emerging electrotechnologies – such as microwave ...

  18. PHOTOCHEMISTRY IN THE MICROWAVE FIELD

    E-Print Network [OSTI]

    Cirkva, Vladimir

    . EDLs Hg-EDLs: I2- and P-EDLs S-EDL vs. solar radiation flux Literature: 1. P. Klán V. Církva, MicrowavePHOTOCHEMISTRY IN THE MICROWAVE FIELD P. Müller, J. Literák, V. Církva, Petr Klán* Department distinctive kinds of electromagnetic radiation, microwave (MW) and ultraviolet/visible: energy of MW radiation

  19. EA-2023: Crossman Peak Communications Facility; Mohave County, Arizona

    Broader source: Energy.gov [DOE]

    Western Area Power Administration is preparing an EA that assesses the potential environmental impacts of a proposed new microwave communication facility to be located adjacent to a privately-owned one near Crossman Peak, east of Lake Havasu City in Mohave County, Arizona. The proposal would consist of a microwave communication facility, an access road, and an approximately 8-mile electrical service distribution line across private land and land administered by the Bureau of Land Management.

  20. Communicating Logistics

    Office of Environmental Management (EM)

    Communicating Logistics * Delayed or nonexistent communication * Lack of consistency-follow protocols * No overarching coordination * DUF6 communication is poor * Lesson learned:...

  1. Local microwave background radiation

    E-Print Network [OSTI]

    Domingos Soares

    2014-11-13

    An inquiry on a possible local origin for the Microwave Background Radiation is made. Thermal MBR photons are contained in a system called {\\it magnetic bottle} which is due to Earth magnetic field and solar wind particles, mostly electrons. Observational tests are anticipated.

  2. Variable frequency microwave furnace system

    DOE Patents [OSTI]

    Bible, D.W.; Lauf, R.J.

    1994-06-14

    A variable frequency microwave furnace system designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity for testing or other selected applications. The variable frequency microwave furnace system includes a microwave signal generator or microwave voltage-controlled oscillator for generating a low-power microwave signal for input to the microwave furnace. A first amplifier may be provided to amplify the magnitude of the signal output from the microwave signal generator or the microwave voltage-controlled oscillator. A second amplifier is provided for processing the signal output by the first amplifier. The second amplifier outputs the microwave signal input to the furnace cavity. In the preferred embodiment, the second amplifier is a traveling-wave tube (TWT). A power supply is provided for operation of the second amplifier. A directional coupler is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load. 5 figs.

  3. Variable frequency microwave furnace system

    DOE Patents [OSTI]

    Bible, Don W. (Clinton, TN); Lauf, Robert J. (Oak Ridge, TN)

    1994-01-01

    A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency microwave furnace system (10) includes a microwave signal generator (12) or microwave voltage-controlled oscillator (14) for generating a low-power microwave signal for input to the microwave furnace. A first amplifier (18) may be provided to amplify the magnitude of the signal output from the microwave signal generator (12) or the microwave voltage-controlled oscillator (14). A second amplifier (20) is provided for processing the signal output by the first amplifier (18). The second amplifier (20) outputs the microwave signal input to the furnace cavity (34). In the preferred embodiment, the second amplifier (20) is a traveling-wave tube (TWT). A power supply (22) is provided for operation of the second amplifier (20). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

  4. FUSING MICROWAVE RADAR AND MICROWAVE-INDUCED THERMOACOUSTICS FOR BREAST CANCER DETECTION

    E-Print Network [OSTI]

    FUSING MICROWAVE RADAR AND MICROWAVE-INDUCED THERMOACOUSTICS FOR BREAST CANCER DETECTION Evgeny in the microwave range. Microwave-radar and microwave-induced thermoacoustic methods both struggle when-induced thermoacoustic (MIT) methods measure and process the acoustic signals induced by differential microwave heating

  5. Microwave solidification project overview

    SciTech Connect (OSTI)

    Sprenger, G.

    1993-01-01

    The Rocky Flats Plant Microwave Solidification Project has application potential to the Mixed Waste Treatment Project and the The Mixed Waste Integrated Program. The technical areas being addressed include (1) waste destruction and stabilization; (2) final waste form; and (3) front-end waste handling and feed preparation. This document covers need for such a program; technology description; significance; regulatory requirements; and accomplishments to date. A list of significant reports published under this project is included.

  6. High Energy Density Microwaves

    SciTech Connect (OSTI)

    Phillips, R.M. [Stanford Linear Accelerator Center, Stanford, CA 94309 (United States)

    1999-04-01

    These proceedings represent papers presented at the RF98 Workshop entitled `High Energy Density Microwaves` held in California in October, 1998. The topics discussed were predominantly accelerator{minus}related. The Workshop dealt, for the most part, with the generation and control of electron beams, the amplification of RF signals, the design of mode converters, and the effect of very high RF field gradients. This Workshop was designed to address the concerns of the microwave tube industry worldwide, the plasma physicists who deal with very high beam currents and gigawatts of RF power, and researchers in accelerator centers around the world. Papers were presented on multibeam klystrons, gyrotron development, plasmas in microwave tubes, RF breakdown, and alternatives to conventional linear coliders at 1 TeV and above. The Workshop was partially sponsored by the US Department of Energy. There were 46 papers presented at the conference,out of which 19 have been abstracted for the Energy,Science and Technology database.(AIP)

  7. SPECTRUM OF THE MICROWAVE BACKGROUND RADIATION

    E-Print Network [OSTI]

    Richards, P.L.

    2010-01-01

    analysis of the data on the microwave background radiationmillimeter spec­ trum of the microwave background. Ap. J.i 0.06 Technique Averaged Microwave Reference Woo. 'y and

  8. Microwave sintering of multiple articles

    DOE Patents [OSTI]

    Blake, Rodger D. (Santa Fe, NM); Katz, Joel D. (Los Alamos, NM)

    1993-01-01

    Apparatus and method for producing articles of alumina and of alumina and silicon carbide in which the articles are sintered at high temperatures using microwave radiation. The articles are placed in a sintering container which is placed in a microwave cavity for heating. The rates at which heating and cooling take place is controlled.

  9. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 18, NO. 1, JANUARY 2008 67 Low-Dispersive Dielectric Mirrors for Future

    E-Print Network [OSTI]

    Natelson, Douglas

    IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 18, NO. 1, JANUARY 2008 67 Low-Dispersive Dielectric Mirrors for Future Wireless Terahertz Communication Systems Ibraheem A. Ibraheem, Norman Krumbholz component for future wireless terahertz communication sys- tems. Here, we investigate the dispersion

  10. Design, Modeling and Numerical Analysis of Microwave and Optical Devices: The Multi-band Patch Antenna, Ultra Wideband Ring Filter and Plasmonic Waveguide Coupler 

    E-Print Network [OSTI]

    Liu, Ya-Chi

    2014-01-14

    In this dissertation, three devices are studied and devised for the applications in microwave and optical communication: (1) Multiband Patch Antenna, (2) Ultra-Wideband Band Pass Ring Filter and (3) Plasmonic Waveguide Coupler with High Coupling...

  11. Microwave hematoma detector

    DOE Patents [OSTI]

    Haddad, Waleed S. (Dublin, CA); Trebes, James E. (Livermore, CA); Matthews, Dennis L. (Moss Beach, CA)

    2001-01-01

    The Microwave Hematoma Detector is a non-invasive device designed to detect and localize blood pooling and clots near the outer surface of the body. While being geared towards finding sub-dural and epi-dural hematomas, the device can be used to detect blood pooling anywhere near the surface of the body. Modified versions of the device can also detect pneumothorax, organ hemorrhage, atherosclerotic plaque in the carotid arteries, evaluate perfusion (blood flow) at or near the body surface, body tissue damage at or near the surface (especially for burn assessment) and be used in a number of NDE applications. The device is based on low power pulsed microwave technology combined with a specialized antenna, signal processing/recognition algorithms and a disposable cap worn by the patient which will facilitate accurate mapping of the brain and proper function of the instrument. The invention may be used for rapid, non-invasive detection of sub-dural or epi-dural hematoma in human or animal patients, detection of hemorrhage within approximately 5 cm of the outer surface anywhere on a patient's body.

  12. Microwave-driven ultraviolet light sources

    DOE Patents [OSTI]

    Manos, Dennis M. (Williamsburg, VA); Diggs, Jessie (Norfolk, VA); Ametepe, Joseph D. (Roanoke, VA)

    2002-01-29

    A microwave-driven ultraviolet (UV) light source is provided. The light source comprises an over-moded microwave cavity having at least one discharge bulb disposed within the microwave cavity. At least one magnetron probe is coupled directly to the microwave cavity.

  13. Hilltop Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam: Energyarea, CaliforniaHessWind Project

  14. Junction Hilltop Wind | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItron (California)JointJosephine, Texas:Gap Wind

  15. Gigatron microwave amplifier

    DOE Patents [OSTI]

    McIntyre, P.M.

    1993-07-13

    An electron tube for achieving high power at high frequency with high efficiency is described, including an input coupler, a ribbon-shaped electron beam and a traveling wave output coupler. The input coupler is a lumped constant resonant circuit that modulates a field emitter array cathode at microwave frequency. A bunched ribbon electron beam is emitted from the cathode in periodic bursts at the desired frequency. The beam has a ribbon configuration to eliminate limitations inherent in round beam devices. The traveling wave coupler efficiently extracts energy from the electron beam, and includes a waveguide with a slot there through for receiving the electron beam. The ribbon beam is tilted at an angle with respect to the traveling wave coupler so that the electron beam couples in-phase with the traveling wave in the waveguide. The traveling wave coupler thus extracts energy from the electron beam over the entire width of the beam.

  16. Gigatron microwave amplifier

    DOE Patents [OSTI]

    McIntyre, Peter M. (611 Montclair, College Station, TX 77840)

    1993-01-01

    An electron tube for achieving high power at high frequency with high efficiency, including an input coupler, a ribbon-shaped electron beam and a traveling wave output coupler. The input coupler is a lumped constant resonant circuit that modulates a field emitter array cathode at microwave frequency. A bunched ribbon electron beam is emitted from the cathode in periodic bursts at the desired frequency. The beam has a ribbon configuration to eliminate limitations inherent in round beam devices. The traveling wave coupler efficiently extracts energy from the electron beam, and includes a waveguide with a slot therethrough for receiving the electron beam. The ribbon beam is tilted at an angle with respect to the traveling wave coupler so that the electron beam couples in-phase with the traveling wave in the waveguide. The traveling wave coupler thus extracts energy from the electron beam over the entire width of the beam.

  17. CAMAC SYSTEM FOR COMPUTER CONTROL OF MICROWAVE SPECTROMETERS

    E-Print Network [OSTI]

    Zizka, G.

    2010-01-01

    of the 5th International Microwave Conference, Hamburg, WestBuscher, and B. Leskovar, "Microwave Absorption Coefficientsof Sulfur Dioxide Microwave Rotational Lines, J. o."

  18. Microwave-Assisted Ignition for Improved Internal Combustion Engine Efficiency

    E-Print Network [OSTI]

    DeFilippo, Anthony Cesar

    2013-01-01

    of Flame Speed by Intense Microwave Radiation. ” CombustionLimits of Gasoline Using a Microwave- Assisted Spark Plug. ”Krage, M. K. (1984) "Microwave Effects on Premixed Flames."

  19. MICROWAVE SPECTROMETER FOR THE DETECTION OF TRANSIENT GASEOUS SPECIES

    E-Print Network [OSTI]

    Kolbe, W.F.

    2011-01-01

    for Computer Control of Microwave Spectrometers, LBL-9276,and H. P. Broida, "Microwave Discharge Cavities Operating atJr. , and C. H. Townes, "Microwave Spectra of the Free

  20. Effects of Microwave Radiation on Selected Mechanical Properties of Silk

    E-Print Network [OSTI]

    Reed, Emily Jane

    2013-01-01

    coli and MRSA using microwave-induced argon plasma atof mycotoxins using microwave-induced argon plasma atClark and W. H. Sutton, "Microwave processing of materials,"

  1. COSMIC MICROWAVE BACKGROUND -- PRESENT STATUS AND FUTURE PROSPECTS

    E-Print Network [OSTI]

    Muller, Richard A.

    2011-01-01

    December 14-20, 1978 COSMIC MICROWAVE BACKGROUND — PRESENTis OTUMHPSB LBL-8799 COSMIC MICROWAVE BACKGROUND ~ PRESENT> lirtLU COSMIC MICROWAVE BACKGROUND — PRESENT STATUS AND

  2. RF and Microwave Amplifier Design With ESD Protection

    E-Print Network [OSTI]

    Lin, Lin

    2010-01-01

    Amplifier,” IEEE Trans. Microwave Theory and Techniques,Amplifier,” IEEE Trans. Microwave Theory and Techniques,for UWB Applications. ” Microwave and Optical Technology

  3. Integrated coherent receivers for high-linearity microwave photonic links

    E-Print Network [OSTI]

    2008-01-01

    down sampling of wideband microwave signals,” J. Lightw.tunable MMI coupler for microwave photonic circuits,” inReceivers for High-Linearity Microwave Photonic Links Anand

  4. Microwave Regenerated DPF for Auxiliary Power Units and Diesel...

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

    Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles Microwave regeneration...

  5. Microwave Meals in a Hurry. 

    E-Print Network [OSTI]

    Haggard, Marilyn A.

    1981-01-01

    Bulletin] Microwave Meals in a Hurry Marilyn A. Haggard* r- Mi, Nave ovens are time-savers for many busy Texans. Used at their optimum, they can be both time and energy savers. However, optimum use takes prac tice. Beginners should allow plenty... foods are being defrosted or cooked. Cook foods that require the same temperature set ting together. It makes preparation faster and saves energy. Study the following examples of organization and planning for microwave meals. Breakfast Orange...

  6. Microwave heating apparatus and method

    DOE Patents [OSTI]

    Johnson, Andrew J. (Boulder, CO); Petersen, Robert D. (Thornton, CO); Swanson, Stephen D. (Brighton, CO)

    1990-01-01

    An apparatus is provided for heating and melting materials using microwave energy, and for permitting them to solidify. The apparatus includes a microwave energy source, a resonant cavity having an opening in its floor, a microwave energy choke encompassing the opening in the floor of the cavity, a metal container to hold the materials to be heated and melted, a turntable, and a lift-table. During operation, the combined action of the turntable and the lift-table position the metal container so that the top of the container is level with the floor of the cavity, is in substantial registration with the floor opening, and is encompassed by the microwave energy choke; thus, during operation, the interior of the container defines part of the resonant cavity. Additionally, a screw feeder, extending into the cavity and sheltered from microwave energy by a conveyor choke, may convey the materials to be heated to the container. Also, preferably, the floor of the resonant cavity may include perforatins, so that the offgases and dust generated in the apparatus may be removed from the resonant cavity by pulling outside air between the container choke and the exterior wall of the container into the resonant cavity and out from the cavity through the perforations.

  7. Microwave andTerahertz Generation Based on Photonically Assisted Microwave Frequency

    E-Print Network [OSTI]

    Yao, Jianping

    Microwave andTerahertz Generation Based on Photonically Assisted Microwave Frequency Twelvetupling Member, IEEE DOI: 10.1109/JPHOT.2010.2084993 1943-0655/$26.00 ©2010 IEEE #12;Microwave and Terahertz Generation Based on Photonically Assisted Microwave Frequency Twelvetupling With Large Tunability Wangzhe Li

  8. EHS-Net Microwave Study EHS-Net Microwave Study Protocol

    E-Print Network [OSTI]

    EHS-Net Microwave Study 1 EHS-Net Microwave Study Protocol Research question Is there any justification for conducting an in-depth study on potential associations between microwave oven usage in food preparation establishments and foodborne illness? Background The use of microwave ovens inherently leads

  9. SLAC All Access: Vacuum Microwave Device Department

    ScienceCinema (OSTI)

    Haase, Andy

    2014-06-13

    The Vacuum Microwave Device Department (VMDD) builds the devices that make SLAC's particle accelerators go. These devices, called klystrons, generate intense waves of microwave energy that rocket subatomic particles up to nearly the speed of light.

  10. Numerical and experimental modelling of microwave applicators

    E-Print Network [OSTI]

    Dibben, David

    1995-10-24

    This thesis presents a time domain finite element method for the solution of microwave heating problems. This is the first time that this particular technique has been applied to microwave heating. It is found that the standard frequency domain...

  11. Ignition methods and apparatus using microwave energy

    DOE Patents [OSTI]

    DeFreitas, Dennis Michael (Oxford, NY); Migliori, Albert (Santa Fe, NM)

    1997-01-01

    An ignition apparatus for a combustor includes a microwave energy source that emits microwave energy into the combustor at a frequency within a resonant response of the combustor, the combustor functioning as a resonant cavity for the microwave energy so that a plasma is produced that ignites a combustible mixture therein. The plasma preferably is a non-contact plasma produced in free space within the resonant cavity spaced away from with the cavity wall structure and spaced from the microwave emitter.

  12. Broadband patterned magnetic microwave absorber

    SciTech Connect (OSTI)

    Li, Wei; Wu, Tianlong; Wang, Wei; Guan, Jianguo, E-mail: guanjg@whut.edu.cn [State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070 (China); Zhai, Pengcheng [School of Science, Wuhan University of Technology, Wuhan 430070 (China)

    2014-07-28

    It is a tough task to greatly improve the working bandwidth for the traditional flat microwave absorbers because of the restriction of available material parameters. In this work, a simple patterning method is proposed to drastically broaden the absorption bandwidth of a conventional magnetic absorber. As a demonstration, an ultra-broadband microwave absorber with more than 90% absorption in the frequency range of 4–40 GHz is designed and experimentally realized, which has a thin thickness of 3.7?mm and a light weight equivalent to a 2-mm-thick flat absorber. In such a patterned absorber, the broadband strong absorption is mainly originated from the simultaneous incorporation of multiple ?/4 resonances and edge diffraction effects. This work provides a facile route to greatly extend the microwave absorption bandwidth for the currently available absorbing materials.

  13. Microwavable thermal energy storage material

    DOE Patents [OSTI]

    Salyer, I.O.

    1998-09-08

    A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments. 3 figs.

  14. Microwavable thermal energy storage material

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH)

    1998-09-08

    A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene-vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments.

  15. MURI High Energy Microwave Sources F496209510253

    E-Print Network [OSTI]

    Wurtele, Jonathan

    MURI ­ High Energy Microwave Sources F49620­95­1­0253 1 August 1999 to 14 March 2000 PROGRESS University Research Initiative (MURI) High Energy Microwave (HEM) research program. The PTSG, reports, and conference papers. The PTSG is primarily involved in the modeling of microwave­beam, plasma

  16. Microwave heat treating of manufactured components

    DOE Patents [OSTI]

    Ripley, Edward B.

    2007-01-09

    An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases. The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

  17. Passive Microwave Systems (Rees Chapter 7)

    E-Print Network [OSTI]

    Sandwell, David T.

    Passive Microwave Systems (Rees Chapter 7) At wavelengths greater than about 2 cm and less than 10 radiation from the Earth dominates". Microwaves penetrate clouds and since the signal is from thermal emissions, passive microwave measurements can be made in all weather and in daytime or nighttime

  18. SIGNATURES OF CORONAL CURRENTS IN MICROWAVE IMAGES

    E-Print Network [OSTI]

    White, Stephen

    : August 12, 1996) Abstract. Microwave emission from solar active regions at frequencies above 4 GHz recognized that microwave emission from solar active regions offers a unique diagnostic of coronal magneticSIGNATURES OF CORONAL CURRENTS IN MICROWAVE IMAGES JEONGWOO LEE, STEPHEN M. WHITE, N. GOPALSWAMY

  19. Microwave assisted centrifuge and related methods

    DOE Patents [OSTI]

    Meikrantz, David H. (Idaho Falls, ID) [Idaho Falls, ID

    2010-08-17

    Centrifuge samples may be exposed to microwave energy to heat the samples during centrifugation and to promote separation of the different components or constituents of the samples using a centrifuge device configured for generating microwave energy and directing the microwave energy at a sample located in the centrifuge.

  20. Friedel Oscillations in Microwave Billiards

    E-Print Network [OSTI]

    A. Baecker; B. Dietz; T. Friedrich; M. Miski-Oglu; A. Richter; F. Schaefer; S. Tomsovic

    2009-11-23

    Friedel oscillations of electron densities near step edges have an analog in microwave billiards. A random plane wave model, normally only appropriate for the eigenfunctions of a purely chaotic system, can be applied and is tested for non-purely-chaotic dynamical systems with measurements on pseudo-integrable and mixed dynamics geometries. It is found that the oscillations in the pseudo-integrable microwave cavity matches the random plane-wave modeling. Separating the chaotic from the regular states for the mixed system requires incorporating an appropriate phase space projection into the modeling in multiple ways for good agreement with experiment.

  1. Advanced CMOS circuits for microwave and millimeter-wave communications

    E-Print Network [OSTI]

    Cetinoneri, Berke

    2011-01-01

    doubler mea- sured using a spectrum analyzer. . . . . .an Agilent E4448A spectrum analyzer with a W-band noisemeasured using a spectrum analyzer. wideband 50 ? load. The

  2. Microwave Photonic Integrated Circuits for Millimeter-Wave Wireless Communications

    E-Print Network [OSTI]

    Carpintero, G.; Balakier, K.; Yang, Z.; Guzmán, R. C.; Corradi, A.; Jimenez, A.; Kervella, G.; Fice, M. J.; Lamponi, M.; Chitoui, M.; van Dijk, F.; Renaud, C. C.; Wonfor, A.; Bente, E. A. J. M.; Penty, R. V.; White, I. H.; Seeds, A. J.

    2014-05-06

    detected power of -12 dBm when the photodiode is reversed biased to -2.5 V with 8.76 mA generated photocurrent. The losses due to RF probe and signal free space propagation path (evolution at the channel output output on a...

  3. Departmental Communications

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

    1978-09-26

    The order establishes standards on eliminating gender-specific terminology from all DOE communications. Canceled by DOE O 1321.139.

  4. PIPELINES AS COMMUNICATION NETWORK LINKS

    SciTech Connect (OSTI)

    Kelvin T. Erickson; Ann Miller; E. Keith Stanek; C.H. Wu; Shari Dunn-Norman

    2005-03-14

    This report presents the results of an investigation into two methods of using the natural gas pipeline as a communication medium. The work addressed the need to develop secure system monitoring and control techniques between the field and control centers and to robotic devices in the pipeline. In the first method, the pipeline was treated as a microwave waveguide. In the second method, the pipe was treated as a leaky feeder or a multi-ground neutral and the signal was directly injected onto the metal pipe. These methods were tested on existing pipeline loops at UMR and Batelle. The results reported in this report indicate the feasibility of both methods. In addition, a few suitable communication link protocols for this network were analyzed.

  5. Scanning tip microwave near field microscope

    DOE Patents [OSTI]

    Xiang, Xiao-Dong (Alameda, CA); Schultz, Peter G. (Oakland, CA); Wei, Tao (Albany, CA)

    1998-01-01

    A microwave near field microscope has a novel microwave probe structure wherein the probing field of evanescent radiation is emitted from a sharpened metal tip instead of an aperture or gap. This sharpened tip, which is electrically and mechanically connected to a central electrode, extends through and beyond an aperture in an endwall of a microwave resonating device such as a microwave cavity resonator or a microwave stripline resonator. Since the field intensity at the tip increases as the tip sharpens, the total energy which is radiated from the tip and absorbed by the sample increases as the tip sharpens. The result is improved spatial resolution without sacrificing sensitivity.

  6. Microwave scattering from laser spark in air

    SciTech Connect (OSTI)

    Sawyer, Jordan; Zhang Zhili [Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States); Shneider, Mikhail N. [Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)

    2012-09-15

    In this paper, microwave Mie scattering from a laser-induced plasma in atmospheric air is computed. It shows that the scattered microwave transitions from coherent Rayleigh scattering to Mie scattering based on the relative transparency of the laser-induced plasma at the microwave frequency. The microwave penetration in the plasma alters from total transparency to partial shielding due to the sharp increase of the electron number density within the avalanche ionization phase. The transition from Rayleigh scattering to Mie scattering is verified by both the temporal evolution of the scattered microwave and the homogeneity of polar scattering plots.

  7. Adhesive bonding using variable frequency microwave energy

    DOE Patents [OSTI]

    Lauf, R.J.; McMillan, A.D.; Paulauskas, F.L.; Fathi, Z.; Wei, J.

    1998-08-25

    Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy. 26 figs.

  8. Adhesive bonding using variable frequency microwave energy

    DOE Patents [OSTI]

    Lauf, R.J.; McMillan, A.D.; Paulauskas, F.L.; Fathi, Z.; Wei, J.

    1998-09-08

    Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy. 26 figs.

  9. Adhesive bonding using variable frequency microwave energy

    DOE Patents [OSTI]

    Lauf, Robert J. (Oak Ridge, TN); McMillan, April D. (Knoxville, TN); Paulauskas, Felix L. (Oak Ridge, TN); Fathi, Zakaryae (Cary, NC); Wei, Jianghua (Raleigh, NC)

    1998-01-01

    Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy.

  10. Microwave sintering of boron carbide

    DOE Patents [OSTI]

    Blake, R.D.; Katz, J.D.; Petrovic, J.J.; Sheinberg, H.

    1988-06-10

    A method for forming boron carbide into a particular shape and densifying the green boron carbide shape. Boron carbide in powder form is pressed into a green shape and then sintered, using a microwave oven, to obtain a dense boron carbide body. Densities of greater than 95% of theoretical density have been obtained. 1 tab.

  11. MMS 2007 Mediterranean Microwave Symposium

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and the radiating slots. The design was based on electromagnetic simulations made using the CST Microwave Studio substrate metallization has been used to improve radiation properties. The simulated radiation efficiency is one of the possible solutions for the development of radiofrequency (RF) systems [1], for example

  12. Controlled zone microwave plasma system

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Morrell, Jonathan S. (Knoxville, TN)

    2009-10-20

    An apparatus and method for initiating a process gas plasma. A conductive plate having a plurality of conductive fingers is positioned in a microwave applicator. An arc forms between the conductive fingers to initiate the formation of a plasma. A transport mechanism may convey process materials through the plasma. A spray port may be provided to expel processed materials.

  13. The Microwave Theory And Application

    E-Print Network [OSTI]

    Masoudi, Husain M.

    was testing a new vacuum tube called a magnetron when he discovered that the candy bar in his pocket had microwave energy. Thus, if an egg can be cooked that quickly , why not other foods? Experimentation began are popular because they cook food in an amazingly short amou nt of time. They are also extremely efficient

  14. High-power microwave LDMOS transistors for wireless data transmission technologies (Review)

    SciTech Connect (OSTI)

    Kuznetsov, E. V., E-mail: E.Kouzntsov@tcen.ru; Shemyakin, A. V. [Moscow Institute of Electronic Technology, SMC Technological Center (Russian Federation)

    2010-12-15

    The fields of the application, structure, fabrication, and packaging technology of high-power microwave LDMOS transistors and the main advantages of these devices were analyzed. Basic physical parameters and some technology factors were matched for optimum device operation. Solid-state microwave electronics has been actively developed for the last 10-15 years. Simultaneously with improvement of old devices, new devices and structures are actively being adopted and developed and new semiconductor materials are being commercialized. Microwave LDMOS technology is in demand in such fields as avionics, civil and military radars, repeaters, base stations of cellular communication systems, television and broadcasting transmitters, and transceivers for high-speed wireless computer networks (promising Wi-Fi and Wi-Max standards).

  15. Microwave assisted hard rock cutting

    DOE Patents [OSTI]

    Lindroth, David P. (Apple Valley, MN); Morrell, Roger J. (Bloomington, MN); Blair, James R. (Inver Grove Heights, MN)

    1991-01-01

    An apparatus for the sequential fracturing and cutting of subsurface volume of hard rock (102) in the strata (101) of a mining environment (100) by subjecting the volume of rock to a beam (25) of microwave energy to fracture the subsurface volume of rock by differential expansion; and , then bringing the cutting edge (52) of a piece of conventional mining machinery (50) into contact with the fractured rock (102).

  16. COMMUNICATION A comprehensive

    E-Print Network [OSTI]

    COMMUNICATION A comprehensive communication degree from the Elliott School of Communication relations, or applied communication. Our program is interdisciplinary in nature, reflecting the contemporary belief that all communication media are engaged in essentially the same functions--gathering information

  17. Microwave solidification development for Rocky Flats waste

    SciTech Connect (OSTI)

    Dixon, D.; Erle, R.; Eschen, V.

    1994-04-01

    The Microwave Engineering Team at the Rocky Flats Plant has developed a production-scale system for the treatment of hazardous, radioactive, and mixed wastes using microwave energy. The system produces a vitreous final form which meets the acceptance criteria for shipment and disposal. The technology also has potential for application on various other waste streams from the public and private sectors. Technology transfer opportunities are being identified and pursued for commercialization of the microwave solidification technology.

  18. MICROWAVE IMAGING REFLECTOMETRY FOR THE VISUALIZATION OF TURBULENCE IN TOKAMAKS

    E-Print Network [OSTI]

    1 MICROWAVE IMAGING REFLECTOMETRY FOR THE VISUALIZATION OF TURBULENCE IN TOKAMAKS E. Mazzucato of density fluctuations in tokamaks. The proposed method is based on microwave reflectometry and consists are discussed. Key words: Tokamak, anomalous transport, turbulent fluctuations, microwave imaging reflectometry

  19. Global longterm passive microwave satellitebased retrievals of vegetation optical depth

    E-Print Network [OSTI]

    Evans, Jason

    Global longterm passive microwave satellitebased retrievals of vegetation optical depth Yi Y. Liu,1 optical depth (VOD) retrievals from three satellitebased passive microwave instruments were merged longterm passive microwave satellitebased retrievals of vegetation optical depth, Geophys. Res. Lett., 38

  20. MICROWAVE RADIOMETER INTER-CALIBRATION: ALGORITHM DEVELOPMENT AND APPLICATION

    E-Print Network [OSTI]

    Ruf, Christopher

    MICROWAVE RADIOMETER INTER-CALIBRATION: ALGORITHM DEVELOPMENT AND APPLICATION by Rachael Ann 1.2.2 Microwave Remote Sensing............................................................................... 8 1.2.4 Spaceborne Microwave Radiometers: Roadmap to TRMM and GPM ...... 10 1.2.5 The Tropical

  1. An Efficient Microwave Power Source: Free-electron Laser Afterburner

    E-Print Network [OSTI]

    Wang, C.

    2008-01-01

    Proceedings of Intense Microwave Pulses (SPIE, Los Angeles,Physics An Efficient Microwave Power Source: Free-Electron4 UC-414 An Efficient Microwave Power Source: Free-electron

  2. Measurement of electron clouds in large accelerators by microwave dispersion

    E-Print Network [OSTI]

    De Santis, Stefano

    2008-01-01

    in Large Accelerators by Microwave Dispersion S. De Santis,li.e. , phase shift) of a microwave signal propagating in thethe phase shift of the microwave signal through the electron

  3. NEAR-MILLIMETER SPECTRUM OF THE MICROWAVE BACKGROUND

    E-Print Network [OSTI]

    Woody, D.P.

    2013-01-01

    +o, 14 z2.06 Table 3. Microwave Measurements of the CMBMILLIMETER SPECTRUM OF THE MICROWAVE BACKGROUND D. P. WoodyMILLIMETER SPECTRUM OF THE MICROWAVE BACKGROUND D. P. Woody1

  4. Scanning microwave-induced thermoacoustic tomography: Signal, resolution, and contrast

    E-Print Network [OSTI]

    Wang, Lihong

    Scanning microwave-induced thermoacoustic tomography: Signal, resolution, and contrast Geng Ku Scanning thermoacoustic tomography was explored in the microwave region of the electromagnetic spectrum ultrasonic transducer detected the time-resolved thermoacoustic signals. Based on the microwave

  5. Microwave Photon Counter Based on Josephson Junctions

    E-Print Network [OSTI]

    Y. -F. Chen; D. Hover; S. Sendelbach; L. Maurer; S. T. Merkel; E. J. Pritchett; F. K. Wilhelm; R. McDermott

    2011-11-07

    We describe a microwave photon counter based on the current-biased Josephson junction. The junction is tuned to absorb single microwave photons from the incident field, after which it tunnels into a classically observable voltage state. Using two such detectors, we have performed a microwave version of the Hanbury Brown and Twiss experiment at 4 GHz and demonstrated a clear signature of photon bunching for a thermal source. The design is readily scalable to tens of parallelized junctions, a configuration that would allow number-resolved counting of microwave photons.

  6. Process for microwave sintering boron carbide

    DOE Patents [OSTI]

    Holcombe, C.E.; Morrow, M.S.

    1993-10-12

    A method of microwave sintering boron carbide comprises leaching boron carbide powder with an aqueous solution of nitric acid to form a leached boron carbide powder. The leached boron carbide powder is coated with a glassy carbon precursor to form a coated boron carbide powder. The coated boron carbide powder is consolidated in an enclosure of boron nitride particles coated with a layer of glassy carbon within a container for microwave heating to form an enclosed coated boron carbide powder. The enclosed coated boron carbide powder is sintered within the container for microwave heating with microwave energy.

  7. Process for microwave sintering boron carbide

    DOE Patents [OSTI]

    Holcombe, Cressie E. (440 Sugarwood Dr., Knoxville, TN 37922); Morrow, Marvin S. (Rte. #3, Box 113, Kingston, TN 37763)

    1993-01-01

    A method of microwave sintering boron carbide comprises leaching boron carbide powder with an aqueous solution of nitric acid to form a leached boron carbide powder. The leached boron carbide powder is coated with a glassy carbon precursor to form a coated boron carbide powder. The coated boron carbide powder is consolidated in an enclosure of boron nitride particles coated with a layer of glassy carbon within a container for microwave heating to form an enclosed coated boron carbide powder. The enclosed coated boron carbide powder is sintered within the container for microwave heating with microwave energy.

  8. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 58, NO. 11, NOVEMBER 2010 3259 Investigation of Photonically Assisted Microwave

    E-Print Network [OSTI]

    Yao, Jianping

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 58, NO. 11, NOVEMBER 2010 3259 Investigation of Photonically Assisted Microwave Frequency Multiplication Based on External Modulation Wangzhe Li, Student Member, IEEE, and Jianping Yao, Senior Member, IEEE Abstract--Microwave frequency

  9. Linear theory of microwave instability in electron storage rings...

    Office of Scientific and Technical Information (OSTI)

    Linear theory of microwave instability in electron storage rings Citation Details In-Document Search Title: Linear theory of microwave instability in electron storage rings...

  10. Microwave (MW) and Radio Frequency (RF) as Enabling Technologies...

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

    Microwave (MW) and Radio Frequency (RF) as Enabling Technologies for Advanced Manufacturing Microwave (MW) and Radio Frequency (RF) as Enabling Technologies for Advanced...

  11. Energy Efficiency Standards for Microwave Ovens Saves Consumers...

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

    Energy Efficiency Standards for Microwave Ovens Saves Consumers Energy and Updates the Social Cost of Carbon Energy Efficiency Standards for Microwave Ovens Saves Consumers Energy...

  12. Microwave (MW) and Radio Frequency (RF) as Enabling Technologies...

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

    International Microwave Power Institute (IMPI), the Japan Society of Electromagnetic Wave Energy Application (JEMEA) and microwave groups from China, India, Russia and Australia....

  13. Method of sintering materials with microwave radiation

    DOE Patents [OSTI]

    Kimrey, Jr., Harold D. (Knoxville, TN); Holcombe, Jr., Cressie E. (Farragut, TN); Dykes, Norman L. (Oak Ridge, TN)

    1994-01-01

    A method of sintering ceramic materials following: A compacted article comprising inorganic particles coated with carbon is provided, the carbon providing improved microwave coupling. The compacted article is then heated by microwave radiation to a temperature and for a period of time sufficient to sinter the compacted article.

  14. Microwave-enhanced chemical processes

    DOE Patents [OSTI]

    Varma, R.

    1990-06-19

    A process is disclosed for the disposal of toxic wastes including chlorinated hydrocarbons, comprising, establishing a bed of non-metallic particulates having a high dielectric loss factor. Intimate contact of the particulates and the toxic wastes at a temperature in excess of about 400 C in the presence of microwave radiation for a time sufficient breaks the hydrocarbon chlorine bonds. Detoxification values in excess of 80 are provided and further detoxification of the bed is followed by additional disposal of toxic wastes. 1 figure.

  15. Topics in network communications

    E-Print Network [OSTI]

    Cannons, Jillian Leigh

    2008-01-01

    in Electrical Engineering (Communication Theory and Systems)in Electrical Engineering (Communication Theory and Systems)Ph.D. in Electrical Engineering (Communication Theory and

  16. Communication and Structured Correlation

    E-Print Network [OSTI]

    Wagner, Elliott

    2009-01-01

    evolution of animal communication: Reliability and deceptiony ORIGINAL ARTICLE Communication and Structured CorrelationMy results show that communication with neighbors is more

  17. Lead, Communications Specialist

    Broader source: Energy.gov [DOE]

    A successful candidate in this position will: Serve as Lead, Communications Specialist for the Communications Team. Assists the Communications Director in planning, coordinating and implementing...

  18. Microwave drying of ferric oxide pellets

    SciTech Connect (OSTI)

    Pickles, C.A.; Xia, D.K. [Queens` Univ., Kingston, Ontario (Canada). Dept. of Materials and Metallurgical Engineering

    1997-12-31

    The application of microwave energy for the drying of ferric oxide pellets has been investigated and evaluated. It is shown that the microwave drying rates are much higher than those observed in the conventional process. Also there is some potential for improved quality of the product. As a stand-alone technology it is unlikely that microwave drying would be economical for pellets due to the low cost of conventional fuels. However, based on an understanding of the drying mechanisms in the conventional process and in the microwave process, it is shown that microwave-assisted drying offers considerable potential. In this hybrid process, the advantages of the two drying techniques are combined to provide an improved drying process.

  19. Tandem microwave waste remediation and decontamination system

    DOE Patents [OSTI]

    Wicks, George G. (North Aiken, SC); Clark, David E. (Gainesville, FL); Schulz, Rebecca L. (Gainesville, FL)

    1999-01-01

    The invention discloses a tandem microwave system consisting of a primary chamber in which microwave energy is used for the controlled combustion of materials. A second chamber is used to further treat the off-gases from the primary chamber by passage through a susceptor matrix subjected to additional microwave energy. The direct microwave radiation and elevated temperatures provide for significant reductions in the qualitative and quantitative emissions of the treated off gases. The tandem microwave system can be utilized for disinfecting wastes, sterilizing materials, and/or modifying the form of wastes to solidify organic or inorganic materials. The simple design allows on-site treatment of waste by small volume waste generators.

  20. Magnetostatic communication

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2008-02-26

    A system for providing communication of information by modulating a magnetostatic field with a magnetostatic transmitter that modulates said magnetostatic field to contain the information and detecting the information in the modulated field at a distance with a magnetostatic detector that detects the modulated magnetic field containing the information.

  1. Quantum Communication

    E-Print Network [OSTI]

    Nicolas Gisin

    2015-07-18

    Quantum Communication is the art of transferring an unknown quantum state from one location, Alice, to a distant one, Bob. This is a non-trivial task because of the quantum no-cloning theorem which prevents one from merely using only classical means.

  2. Photonic microwave bandpass filter with improved dynamic range

    E-Print Network [OSTI]

    Yao, Jianping

    Photonic microwave bandpass filter with improved dynamic range Yu Yan and Jianping Yao* Microwave A technique to improve the dynamic range of a photonic microwave bandpass filter is proposed and experi. The dynamic range of the photonic microwave bandpass filter is increased by reducing the optical

  3. Microwaving of normally opaque and semi-opaque substances

    DOE Patents [OSTI]

    Sheinberg, H.; Meek, T.T.; Blake, R.D.

    1990-07-17

    Disclosed is a method of heating small particles using microwave radiation which are not normally capable of being heated by microwaves. The surfaces of the particles are coated with a material which is transparent to microwave radiation in order to cause microwave coupling to the particles and thus accomplish heating of the particles.

  4. Risk communications & emergency planning

    SciTech Connect (OSTI)

    Baranski, S.C. [EQUINOX Environmental, Inc., Shushan, NY (United States)

    1995-12-31

    This talk outlines the interface between good risk communication and emergency planning. The major topics include the following: What is risk communication and how is it applied to emergency planning; crisis communication and the need to know and how to integrate crisis communication and risk communication; the face of the emergency: spokespersons, public information; The Media`s role in emergency Public information and risk communication; Developing the risk communication message; How to respond to continuing need for 24 hours communications; the EAS and Risk communication and Crisis communication; and finally where is risk communication heading and how it can help.

  5. 496 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 57, NO. 2, FEBRUARY 2009 Chirped Microwave Pulse Compression Using

    E-Print Network [OSTI]

    Yao, Jianping

    496 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 57, NO. 2, FEBRUARY 2009 Chirped Microwave Pulse Compression Using a Photonic Microwave Filter With a Nonlinear Phase Response Chao Wang, Student Member, IEEE, and Jianping Yao, Senior Member, IEEE Abstract--Chirped microwave pulse compression

  6. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 57, NO. 2, FEBRUARY 2009 505 Microwave Frequency Measurement Based on

    E-Print Network [OSTI]

    Yao, Jianping

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 57, NO. 2, FEBRUARY 2009 505 Microwave, Hao Chi, and Jianping Yao, Senior Member, IEEE Abstract--An approach to the measurement of a microwave and investigated. In the proposed system, a microwave signal is applied to a Mach­Zehnder mod- ulator, which

  7. MICROWAVE IMAGING FOR DAMAGE DETECTION Microwave imaging technology has been developed to detect invisible damage such as

    E-Print Network [OSTI]

    De Flaviis, Franco

    MICROWAVE IMAGING FOR DAMAGE DETECTION By ABSTRACT Microwave imaging technology has been developed to construct 2D and 3D objects from the scattered microwave fields. Both numerical simulation and experiments demonstrated the effectiveness of the proposed microwave imaging technology in detecting voids inside

  8. Microwave meta-atom enhanced spintronic rectification

    SciTech Connect (OSTI)

    Gou, Peng; Xi, Fuchun; Qian, Qinbai; Xu, Jie; Gui, Y. S.; Hu, C.-M.; An, Zhenghua

    2015-04-06

    An artificial meta-atom (MA), or alternatively, a plasmonic antenna, has been demonstrated to significantly enhance the microwave spin rectifying photovoltage by more than two orders in magnitude (?280) in the ferromagnetic resonance regime. The large enhancement is attributed to the unique structure of the MA which magnifies both microwave electric (?5) and magnetic (?56) fields in the same near-field spatial region. Our work develops the interdisciplinary direction with artificial and natural magnetism and may find promising applications in high-frequency or opto-spintronic devices and wireless microwave energy harvesting.

  9. Microwave plasma monitoring system for the elemental composition analysis of high temperature process streams

    DOE Patents [OSTI]

    Woskov, Paul P. (Bedford, MA); Cohn, Daniel R. (Chestnuthill, MA); Titus, Charles H. (Newtown Square, PA); Surma, Jeffrey E. (Kennewick, WA)

    1997-01-01

    Microwave-induced plasma for continuous, real time trace element monitoring under harsh and variable conditions. The sensor includes a source of high power microwave energy and a shorted waveguide made of a microwave conductive, high temperature capability refractory material communicating with the source of the microwave energy to generate a plasma. The high power waveguide is constructed to be robust in a hot, hostile environment. It includes an aperture for the passage of gases to be analyzed and a spectrometer is connected to receive light from the plasma. Provision is made for real time in situ calibration. The spectrometer disperses the light, which is then analyzed by a computer. The sensor is capable of making continuous, real time quantitative measurements of desired elements, such as the heavy metals lead and mercury. The invention may be incorporated into a high temperature process device and implemented in situ for example, such as with a DC graphite electrode plasma arc furnace. The invention further provides a system for the elemental analysis of process streams by removing particulate and/or droplet samples therefrom and entraining such samples in the gas flow which passes through the plasma flame. Introduction of and entraining samples in the gas flow may be facilitated by a suction pump, regulating gas flow, gravity or combinations thereof.

  10. Microwave Excitation In ECRIS plasmas

    SciTech Connect (OSTI)

    Ciavola, G.; Celona, L.; Consoli, F.; Gammino, S.; Maimone, F.; Barbarino, S.; Catalano, R. S.; Mascali, D.; Tumino, L.

    2007-09-28

    A number of phenomena related to the electron cyclotron resonance ion sources (ECRIS) has been better understood recently by means of the improvement of comprehension of the coupling mechanism between microwave generators and ECR plasma. In particular, the two frequency heating and the frequency tuning effect, that permit a remarkable increase of the current for the highest charge states ions, can be explained in terms of modes excitation in the cylindrical cavity of the plasma chamber. Calculations based on this theoretical approach have been performed, and the major results will be presented. It will be shown that the electric field pattern completely changes for a few MHz frequency variations and the changes in ECRIS performances can be correlated to the efficiency of the power transfer between electromagnetic field and plasma.

  11. Planar slot coupled microwave hybrid

    DOE Patents [OSTI]

    Petter, Jeffrey K. (Williston, VT)

    1991-01-01

    A symmetrical 180.degree. microwave hybrid is constructed by opening a slot line in a ground plane below a conducting strip disposed on a dielectric substrate, creating a slot coupled conductor. Difference signals propagating on the slot coupled conductor are isolated on the slot line leaving sum signals to propagate on the microstrip. The difference signal is coupled from the slot line onto a second microstrip line for transmission to a desired location. The microstrip branches in a symmetrical fashion to provide the input/output ports of the 180.degree. hybrid. The symmetry of the device provides for balance and isolation between sum and difference signals, and provides an advantageous balance between the power handling capabilities and the bandwidth of the device.

  12. Implications about the large scale properties of the universe from the cosmic microwave background

    E-Print Network [OSTI]

    Aslanyan, Grigor; Aslanyan, Grigor

    2012-01-01

    Finding Topology with the Microwave Background Radiation,Lensing of the Cosmic Microwave Background using cross-correlations in the cosmic microwave background, Nature.

  13. SIMULATION AND ANALYSIS OF MICROWAVE TRANSMISSION THROUGH AN ELECTRON CLOUD, A COMPARISON OF RESULTS

    E-Print Network [OSTI]

    Sonnad, Kiran G.; Furman, Miguel; Veitzer, Seth A.; Cary, John

    2008-01-01

    of the propagation of microwaves through electron cloudsSimulation and analysis of microwave transmission through anfor transmission of microwaves through electron cloudes show

  14. Microwave Transmission Measurements of the Electron Cloud density In the Positron Ring of PEP-II

    E-Print Network [OSTI]

    Pivi, Mauro T.F.

    2009-01-01

    frequency is equal to the microwave frequency, the totalMICROWAVE TRANSMISSION MEASUREMENT OF THE ELECTRON CLOUDCERN SPS Experiment On Microwave Transmission Through the

  15. Microwave Ion Source and Beam Injection for an Accelerator-driven Neutron Source

    E-Print Network [OSTI]

    2007-01-01

    LBNL-62514 MICROWAVE ION SOURCE AND BEAM INJECTION FOR ANAbstract An over-dense microwave driven ion source capableregion. Matching of the microwave power from the waveguide

  16. Late Time Neutrino Masses, the LSND Experiment and the Cosmic Microwave Background

    E-Print Network [OSTI]

    Chacko, Z.

    2009-01-01

    Experiment and the Cosmic Microwave Background Z. Chacko,Experiment and the Cosmic Microwave Background Z. Chacko,distributions of the cosmic microwave background. arXiv:hep-

  17. CANCELLED Microwave Ion Source and Beam Injection for an Accelerator-Driven Neut ron Source

    E-Print Network [OSTI]

    2008-01-01

    Abstract An over-dense microwave driven ion source capableregion. Matching of the microwave power from the waveguideperveance. ION SOURCE Microwave source was selected due to

  18. DETECTION AND MEASUREMENTS OF AIR POLLUTANTS AND CONSTITUENTS BY MELLIMETER-WAVE MICROWAVE SPECTROSCOPY

    E-Print Network [OSTI]

    Leskovar, Branko

    2011-01-01

    of Sulfur Dioxide Microwave Rotational Lines. Journal ofT. Buscher, B. Leskovar, Microwave Absorption CoefficientsPiezo- electric-Tuned Microwave Cavity for Absorption

  19. Measurement of the Cosmic Microwave Background Polarization with the BICEP Telescope at the South Pole

    E-Print Network [OSTI]

    Takahashi, Yuki David

    2010-01-01

    18 Microwave absorbers candidates for1.4.2 Cosmic microwave background polarization 1.4.3 Curl-Measurement of Cosmic Microwave Background Polarization

  20. The POLARBEAR Cosmic Microwave Background Polarization Experiment and Anti-Reflection Coatings for Millimeter Wave Observations

    E-Print Network [OSTI]

    Quealy, Erin

    2012-01-01

    Tables 1 The Cosmic Microwave Background as a CosmologicalFour-Year COBE DMR Cosmic Microwave Background Observations:First-Year Wilkinson Microwave Anisotropy Probe (WMAP)

  1. Simulation and Analysis of Microwave Transmission through an Electron Cloud, a Comparison of Results

    E-Print Network [OSTI]

    Sonnad, Kiran

    2008-01-01

    of the propagation of microwaves through electron cloudsSIMULATION AND ANALYSIS OF MICROWAVE TRANSMISSION THROUGH ANfor transmission of microwaves through electron cloudes show

  2. Experimental and theoretical investigations of microwave heating 

    E-Print Network [OSTI]

    Kota, Bhagat Chandra

    2004-09-30

    In this work we proposed the governing equations for describing the microwave heating process where the complex interactions between the thermo-mechanical and electromagnetic fields are taken into account. Starting point are the general balance laws...

  3. Modulated microwave microscopy and probes used therewith

    DOE Patents [OSTI]

    Lai, Keji; Kelly, Michael; Shen, Zhi-Xun

    2012-09-11

    A microwave microscope including a probe tip electrode vertically positionable over a sample and projecting downwardly from the end of a cantilever. A transmission line connecting the tip electrode to the electronic control system extends along the cantilever and is separated from a ground plane at the bottom of the cantilever by a dielectric layer. The probe tip may be vertically tapped near or at the sample surface at a low frequency and the microwave signal reflected from the tip/sample interaction is demodulated at the low frequency. Alternatively, a low-frequency electrical signal is also a non-linear electrical element associated with the probe tip to non-linearly interact with the applied microwave signal and the reflected non-linear microwave signal is detected at the low frequency. The non-linear element may be semiconductor junction formed near the apex of the probe tip or be an FET formed at the base of a semiconducting tip.

  4. Chemical vapor infiltration using microwave energy

    DOE Patents [OSTI]

    Devlin, David J. (Los Alamos, NM); Currier, Robert P. (Los Alamos, NM); Laia, Jr., Joseph R. (Los Alamos, NM); Barbero, Robert S. (Santa Cruz, NM)

    1993-01-01

    A method for producing reinforced ceramic composite articles by means of chemical vapor infiltration and deposition in which an inverted temperature gradient is utilized. Microwave energy is the source of heat for the process.

  5. Container evaluation for microwave solidification project

    SciTech Connect (OSTI)

    Smith, J.A.

    1994-08-01

    This document discusses the development and testing of a suitable waste container and packaging arrangement to be used with the Microwave Solidification System (MSS) and Bagless Posting System (BPS). The project involves the Rocky Flats Plant.

  6. Detection of contraband using microwave radiation

    DOE Patents [OSTI]

    Toth, Richard P. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Bacon, Larry D. (Albuquerque, NM); Watson, Robert D. (Tijeras, NM)

    2002-01-01

    The present invention relates to a method and system for using microwave radiation to detect contraband hidden inside of a non-metallic container, such as a pneumatic vehicle tire. The method relies on the attenuation, retardation, time delay, or phase shift of microwave radiation as it passes through the container plus the contraband. The method is non-invasive, non-destructive, low power, and does not require physical contact with the container.

  7. Continuous microwave regeneration apparatus for absorption media

    DOE Patents [OSTI]

    Smith, Douglas D. (Knoxville, TN)

    1999-01-01

    A method and apparatus for continuously drying and regenerating ceramic beads for use in process gas moisture drying operations such as glove boxes. A microwave energy source is coupled to a process chamber to internally heat the ceramic beads and vaporize moisture contained therein. In a preferred embodiment, the moisture laden ceramic beads are conveyed toward the microwave source by a screw mechanism. The regenerated beads flow down outside of the screw mechanism and are available to absorb additional moisture.

  8. Microwaves in Photochemistry and Photocatalysis Vladimir Cirkva

    E-Print Network [OSTI]

    Cirkva, Vladimir

    563 14 Microwaves in Photochemistry and Photocatalysis Vladim´ir C´irkva 14.1 Introduction photocatalysis. The energy of MW radia- tion (e.g., E = 0.98 J mol-1 at = 2.45 GHz) is considerably lower than by Wiley-VCH Verlag GmbH & Co. KGaA. #12;564 14 Microwaves in Photochemistry and Photocatalysis UV

  9. 208 IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 11, NO. 5, MAY 2001 Novel Low-Cost Ultra-Wideband, Ultra-Short-Pulse

    E-Print Network [OSTI]

    Arslan, Hüseyin

    208 IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 11, NO. 5, MAY 2001 Novel Low-Cost Ultra communications applica- tions. An UWB, ultra-short-pulse radar has spectrum extending from very low to very high-Wideband, Ultra-Short-Pulse Transmitter with MESFET Impulse-Shaping Circuitry for Reduced Distortion and Improved

  10. Scholarly Communication

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque| Stanford Synchrotron RadiationCommunication Scholarly

  11. Microwave thawing package and method

    DOE Patents [OSTI]

    Fathi, Zakaryae; Lauf, Robert J.

    2004-03-16

    A package for containing frozen liquids during an electromagnetic thawing process includes: a first section adapted for containing a frozen material and exposing the frozen material to electromagnetic energy; a second section adapted for receiving thawed liquid material and shielding the thawed liquid material from further exposure to electromagnetic energy; and a fluid communication means for allowing fluid flow between the first section and the second section.

  12. Statistics of solar microwave radio burst spectra with implications for operations of microwave radio systems

    E-Print Network [OSTI]

    .6 GHz to employ an adaptable mode wherein, if the prediction of solar activity suggested the possible [Hey, 1946], the understanding and prediction of solar events that might produce interfering noiseStatistics of solar microwave radio burst spectra with implications for operations of microwave

  13. Microwave photochemistry. Photoinitiated radical addition of tetrahydrofuran to peruorohexylethene under microwave irradiation

    E-Print Network [OSTI]

    Cirkva, Vladimir

    ¯uorohexylethene under microwave irradiation VladimõÂr CõÂrkva, Milan HaÂjek* Institute of Chemical Process Fundamentals combined irradiation using a new simple photochemical reactor developed for organic synthetic reactions reserved. Keywords: Radical addition; Microwave irradiation; Photoinitiation; Electrodeless UV lamp

  14. Persuasive Negotiation and Communication

    E-Print Network [OSTI]

    Richmond, Geraldine L.

    Persuasive Negotiation and Communication Techniques Geri Richmond University of Oregon COACh http://coach.uoregon.edu #12;Today's focus Successful techniques for increasing your communication and negotiation skills communication includes body language Up to 93 % of communication is non-verbal. The eyes communicate more than

  15. Airborne wireless communication systems, airborne communication methods, and communication methods

    DOE Patents [OSTI]

    Deaton, Juan D. (Menan, ID); Schmitt, Michael J. (Idaho Falls, ID); Jones, Warren F. (Idaho Falls, ID)

    2011-12-13

    An airborne wireless communication system includes circuitry configured to access information describing a configuration of a terrestrial wireless communication base station that has become disabled. The terrestrial base station is configured to implement wireless communication between wireless devices located within a geographical area and a network when the terrestrial base station is not disabled. The circuitry is further configured, based on the information, to configure the airborne station to have the configuration of the terrestrial base station. An airborne communication method includes answering a 911 call from a terrestrial cellular wireless phone using an airborne wireless communication system.

  16. Information and Communications Infrastructure

    E-Print Network [OSTI]

    Communications Utilization and Performance________________________ 20 5.3 Systems Support Utilization and Performance ____________________________ 21 5.4 Radio Communications Systems Utilization and Performance of the communications infrastructure and information systems used during this time period. It addresses resources

  17. Asian Communication Modes

    E-Print Network [OSTI]

    Zhang, Yan Bing

    2008-01-01

    Communication in its simplest form refers to the ongoing process of sharing and understanding meaning (? Communication: Definitions and Concepts). Much of a problematic intercultural communication stems from different ways that message is composed...

  18. Optical Communication Without Photons

    E-Print Network [OSTI]

    Nicolas Gisin

    2013-04-30

    I analyse a recent quantum communication protocol by Salih et al. that allows one to communicate without any particle carrying the information from the sender to the receiver. I show how this can equally be achieved using classical communication.

  19. COMMUNICATION Revised 2006

    E-Print Network [OSTI]

    Texas at Arlington, University of

    Z HAZARD COMMUNICATION PROGRAM Revised 2006 Environmental Health & Safety #12;TABLE OF CONTENTS................................................................................................. 1 B. Applicability of THCA (Texas Hazard Communication Act) 502............. 1 C. Definitions ................................................... 14 A. Hazard Communication Coordinator/Safety Representatives................... 15 B. Employee

  20. Communication Standards and Recommendations

    E-Print Network [OSTI]

    Communication Standards and Recommendations Introduction & Purpose 3 Standards & Recommendations Communication 4 Training 10 Evaluation 11 PMO Workgroup Participation 12 Staffing 12 Communications-related Tracking Grantee Portal Standards and Recommendations 13

  1. ORISE: Public Health Communication

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

    Communication Public Health Communication The Oak Ridge Institute for Science and Education (ORISE) assists government agencies and organizations in addressing public health...

  2. Microwave imaging reflectometry for the visualization of turbulence in tokamaks

    E-Print Network [OSTI]

    Mazzucato, Ernesto

    Microwave imaging reflectometry for the visualization of turbulence in tokamaks E. Mazzucato describes the results of an extensive numerical study of microwave reflectometry in tokamaks showing scheme for the global visualization of turbulent fluctuations in tokamaks is described. 1. Introduction

  3. Microwave off-gas treatment apparatus and process

    DOE Patents [OSTI]

    Schulz, Rebecca L. (Aiken, SC); Clark, David E. (Gainesville, FL); Wicks, George G. (North Aiken, SC)

    2003-01-01

    The invention discloses a microwave off-gas system in which microwave energy is used to treat gaseous waste. A treatment chamber is used to remediate off-gases from an emission source by passing the off-gases through a susceptor matrix, the matrix being exposed to microwave radiation. The microwave radiation and elevated temperatures within the combustion chamber provide for significant reductions in the qualitative and quantitative emissions of the gas waste stream.

  4. Early results of microwave transmission experiments through an overly dense rectangular plasma sheet with microparticle injection

    SciTech Connect (OSTI)

    Gillman, Eric D.; Amatucci, W. E.

    2014-06-15

    These experiments utilize a linear hollow cathode to create a dense, rectangular plasma sheet to simulate the plasma layer surrounding vehicles traveling at hypersonic velocities within the Earth's atmosphere. Injection of fine dielectric microparticles significantly reduces the electron density and therefore lowers the electron plasma frequency by binding a significant portion of the bulk free electrons to the relatively massive microparticles. Measurements show that microwave transmission through this previously overly dense, impenetrable plasma layer increases with the injection of alumina microparticles approximately 60 ?m in diameter. This method of electron depletion is a potential means of mitigating the radio communications blackout experienced by hypersonic vehicles.

  5. Constraints on the polarization purity of a Stokes microwave radiometer

    E-Print Network [OSTI]

    Ruf, Christopher

    Constraints on the polarization purity of a Stokes microwave radiometer Christopher S. Ruf of the third and fourth Stokes parameters of microwave thermal emission can be degraded by nonideal radiometer of microwave emission by the ocean surface identified wind direc- tion as the cause [Bespalova et al., 1982

  6. Microwave Interferometer Density Diagnostic for the Levitated Dipole Experiment

    E-Print Network [OSTI]

    Microwave Interferometer Density Diagnostic for the Levitated Dipole Experiment A. Boxer, J. Kesner a multi-channel microwave interferometer. Such a device makes use the relationship between a plasma;Basic Design · An RF of 60 GHz puts our interferometer in the microwave spectrum. · The primary design

  7. Microwave frequency measurement with improved measurement range and

    E-Print Network [OSTI]

    Yao, Jianping

    Microwave frequency measurement with improved measurement range and resolution X. Zou and J. Yao An approach is proposed and demonstrated to improve the measure- ment range and resolution of a microwave frequency measurement system. Two optical wavelengths are modulated by a microwave signal in a Mach

  8. Quantitative Microwave Imaging Based on a Huber regularization

    E-Print Network [OSTI]

    Pizurica, Aleksandra

    Quantitative Microwave Imaging Based on a Huber regularization Funing Bai, Wilfried Philips University, Belgium Abstract--Reconstruction of inhomogeneous dielectric objects from microwave scattering by means of quantitative microwave tomography is a nonlinear, ill-posed inverse problem. In this paper, we

  9. A NOVEL MICROWAVE CAMERA FOR NDE OF CONCRETE STRUCTURES

    E-Print Network [OSTI]

    De Flaviis, Franco

    A NOVEL MICROWAVE CAMERA FOR NDE OF CONCRETE STRUCTURES By Maria Q. Feng1 , Yoo Jin Kim2 , Franco a novel microwave camera for detecting and quantitatively assessing such internal damage in concrete. For the experimental verification, a prototype planar microwave camera was fabricated and tested on a concrete block

  10. MICROWAVE IMAGING REFLECTOMETRY FOR THE VISUALIZATION OF TURBULENCE IN TOKAMAKS

    E-Print Network [OSTI]

    1 MICROWAVE IMAGING REFLECTOMETRY FOR THE VISUALIZATION OF TURBULENCE IN TOKAMAKS E. Mazzucato of density fluctuations in tokamaks. The proposed method is based on microwave reflectometry and consists, and forming an image of the reflecting plasma layer onto a 2D array of microwave receivers. Based on results

  11. Microwave Interferometer Density Diagnostic for the Levitated Dipole Experiment

    E-Print Network [OSTI]

    Microwave Interferometer Density Diagnostic for the Levitated Dipole Experiment A. Boxer, J. Kesner design follows other microwave interferometers in the literature, in particular C.W. Domier et. al. Rev.Sci.Instrum. 59 [1988], 1588 · An RF beam of 60 GHz puts our interferometer in the microwave spectrum. · Our

  12. Apparatus for microwave heat treatment of manufactured components

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN)

    2008-04-15

    An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases. The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

  13. Microwave Interferometer Density Diagnostic for the Levitated Dipole Experiment

    E-Print Network [OSTI]

    Microwave Interferometer Density Diagnostic for the Levitated Dipole Experiment A. Boxer, J. Kesner the density profile of the plasma in LDX, we are constructing a multi-channel microwave interferometer be inverted to reconstruct a radially symmetric density profile. The microwave interferometer of LDX

  14. Preliminary Validation and Performance of the Jason Microwave Radiometer

    E-Print Network [OSTI]

    Ruf, Christopher

    Preliminary Validation and Performance of the Jason Microwave Radiometer Shannon Brown and Chris Pasadena, CA Abstract ­ The Jason Microwave Radiometer is calibrated using hot and cold on-located Topex Microwave Radiometer and radiosonde values. The calibrated path delay values are demonstrated

  15. VICARIOUS CALIBRATION OF GLOBAL PRECIPITATION MEASUREMENT MICROWAVE RADIOMETERS1

    E-Print Network [OSTI]

    Ruf, Christopher

    VICARIOUS CALIBRATION OF GLOBAL PRECIPITATION MEASUREMENT MICROWAVE RADIOMETERS1 Darren Mc of the TMI, WindSat, SSM/I F13 and SSM/I F14 microwave radiometers using data from the GPM Inter Terms-- Microwave radiometry, Calibration 1. INTRODUCTION The primary goal of NASA's Global

  16. MICROWAVE PROCESSING OF LUNAR SOIL Lawrence A. Taylor1

    E-Print Network [OSTI]

    Taylor, Lawrence A.

    MICROWAVE PROCESSING OF LUNAR SOIL Lawrence A. Taylor1 and Thomas T. Meek2 The unique properties of lunar regolith make for the extreme coupling of the soil to microwave radiation. Space weathering lunar soil (i.e., 1200-1500 o C) in minutes in a normal kitchen-type 2.45 GHz microwave, almost as fast

  17. Methods for microwave heat treatment of manufactured components

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN)

    2010-08-03

    An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases. The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

  18. CONTROLLED THERMONUCLEAR PROCESSES THE APPLICATION OF MICROWAVE TECHNIQUES

    E-Print Network [OSTI]

    MATT-I7 CONTROLLED THERMONUCLEAR PROCESSES THE APPLICATION OF MICROWAVE TECHNIQUES f TO STELLARATOR-11 .. · The Application of Microwave Techniques to Ste11arator Research Mark A. Heald August 26, 1959 Abstract .. This report summarizes the basic principles of microwave diagnostics as applied

  19. Tunable photonic microwave generation using optically injected semiconductor

    E-Print Network [OSTI]

    Chan, Sze-Chun

    Tunable photonic microwave generation using optically injected semiconductor laser dynamics feedback are investigated for photonic microwave generation. The optical injection first drives the laser into P1 dynamics so that its intensity oscillates at a microwave frequency. A dual-loop optical feedback

  20. A direct digital synthesis chirped pulse Fourier transform microwave spectrometer

    E-Print Network [OSTI]

    Blake, Geoffrey

    A direct digital synthesis chirped pulse Fourier transform microwave spectrometer Ian A. Finneran OF SCIENTIFIC INSTRUMENTS 84, 083104 (2013) A direct digital synthesis chirped pulse Fourier transform microwave pulse Fourier transform microwave (CP-FTMW) spectrometers have become the instrument of choice

  1. Thermite powder ignition by localized microwaves Yehuda Meir, Eli Jerby

    E-Print Network [OSTI]

    Jerby, Eli

    Thermite powder ignition by localized microwaves Yehuda Meir, Eli Jerby Faculty of Engineering Keywords: Thermite Microwave heating Hotspots Thermal runaway Ignition a b s t r a c t This paper presents a new method to ignite pure thermite powder by low-power microwaves ($100 W). In this method

  2. Microwave and hard X-ray imaging observations of

    E-Print Network [OSTI]

    White, Stephen

    Microwave and hard X-ray imaging observations of energetic electrons in solar flares: event of 2003 to nonthermal energies are seen via microwave and hard X-ray emission from the solar corona. Imaging sophisticated and fully dedicated solar radio telescope operating at microwave frequencies (17 & 34 GHz) capable

  3. THZ TRANSMISSION SPECTROSCOPY APPLIED TO DIELECTRICS AND MICROWAVE CERAMICS

    E-Print Network [OSTI]

    KuÂ?el, Petr

    THZ TRANSMISSION SPECTROSCOPY APPLIED TO DIELECTRICS AND MICROWAVE CERAMICS ALEXEJ PASHKIN, ELENA of Ba(Mg1/3Ta2/3)O3 (BMT) high-permittivity microwave ceramics was measured in the sub; time-resolved spectroscopy; microwave ceramics INTRODUCTION The method of time-domain terahertz

  4. Distributed storage with communication costs

    E-Print Network [OSTI]

    Armstrong, Craig Kenneth

    2011-01-01

    in Electrical & Computer Engineering (Communication Theoryin Electrical & Computer Engineering (Communication Theory

  5. Effect of microwave radiation on coal flotation

    SciTech Connect (OSTI)

    Ozbayoglu, G.; Depci, T.; Ataman, N. [Middle East Technical University, Ankara (Turkey). Mining Engineering Department

    2009-07-01

    Most low-rank coals are high in moisture and acid functional groups, therefore showing poor floatability. Drying, which removes the water molecules trapped in the pores and adsorbed at the surface of coal, decreases the hydrophilic character and improves the floatability. Microwave heating, whose simplest application is drying, was applied at 0.9 kW power level for 60 sec exposure time in the experiments to decrease the moisture content of coal in order to enhance the hydrophobicity. The flotation tests of microwave-treated coal by using heptanol and octanol lead to a higher flotation yield and ash removal than original coal.

  6. Microwave gas breakdown in elliptical waveguides

    SciTech Connect (OSTI)

    Koufogiannis, I. D.; Sorolla, E., E-mail: eden.sorolla@epfl.ch; Mattes, M. [École Polytechnique Fédérale de Lausanne, Laboratoire d’Électromagnétisme et d'Acoustique (LEMA), Station 11, CH-1015 Lausanne (Switzerland)] [École Polytechnique Fédérale de Lausanne, Laboratoire d’Électromagnétisme et d'Acoustique (LEMA), Station 11, CH-1015 Lausanne (Switzerland)

    2014-01-15

    This paper analyzes the microwave gas discharge within elliptical waveguides excited by the fundamental mode. The Rayleigh-Ritz method has been applied to solve the continuity equation. The eigenvalue problem defined by the breakdown condition has been solved and the effective diffusion length of the elliptical waveguide has been calculated, what is used to find the corona threshold. This paper extends the microwave breakdown model developed for circular waveguides and shows the better corona withstanding capabilities of elliptical waveguides. The corona breakdown electric field threshold obtained with the variational method has been compared with the one calculated with the Finite Elements Method, showing excellent agreement.

  7. Synthesis of ultrafine powders by microwave heating

    DOE Patents [OSTI]

    Meek, T.T.; Sheinberg, H.; Blake, R.D.

    1987-04-24

    A method of synthesizing ultrafine powders using microwaves is described. A water soluble material is dissolved in water and the resulting aqueous solution is exposed to microwaves until the water has dissolved. The resulting material is an ultrafine powder. This method can be used to make Al/sub 2/O/sub 3/, NiO /plus/ Al/sub 2/O/sub 3/ and NiO as well as a number of other materials including GaBa/sub 2/Cu/sub 3/O/sub x/. 1 tab.

  8. Synthesis of ultrafine powders by microwave heating

    DOE Patents [OSTI]

    Meek, Thomas T. (Knoxville, TN); Sheinberg, Haskell (Los Alamos, NM); Blake, Rodger D. (Santa Fe, NM)

    1988-01-01

    A method of synthesizing ultrafine powders using microwaves is described. A water soluble material is dissolved in water and the resulting aqueous solution is exposed to microwaves until the water has been removed. The resulting material is an ultrafine powder. This method can be used to make Al.sub.2 O.sub.3, NiO+Al.sub.2 O.sub.3 and NiO as well as a number of other materials including GaBa.sub.2 Cu.sub.3 O.sub.x.

  9. Communications Consultant RFP

    Broader source: Energy.gov [DOE]

    Communications Consultant RFP, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  10. Communication Sciences and Disorders

    E-Print Network [OSTI]

    Saldin, Dilano

    Communication Sciences and Disorders Communication Sciences and Disorders When the ability to communicate is disrupted, every aspect of daily living is affected. As a Speech-Language Pathologist or Audiologist, your evaluation and treatment helps clients and their families to improve communication skills

  11. Communication Consultant Contract

    Office of Energy Efficiency and Renewable Energy (EERE)

    Communication Consultant Contract, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  12. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 58, NO. 11, NOVEMBER 2010 3269 Tunable Programmable Microwave Photonic Filters

    E-Print Network [OSTI]

    Purdue University

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 58, NO. 11, NOVEMBER 2010 3269 Tunable Programmable Microwave Photonic Filters Based on an Optical Frequency Comb Ehsan Hamidi, Student Member, IEEE the application of optical combs to implement tunable programmable microwave photonic filters. We design well

  13. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 59, NO. 11, NOVEMBER 2011 2987 Frequency-Tunable Microwave Generation

    E-Print Network [OSTI]

    Yao, Jianping

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 59, NO. 11, NOVEMBER 2011 2987 Frequency-Tunable Microwave Generation Based on Time-Delayed Optical Combs Montasir Qasymeh, Wangzhe Li, Student Member, IEEE, and Jianping Yao, Senior Member, IEEE Abstract--A novel approach to generating a frequency-tun- able microwave

  14. 804 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 2, FEBRUARY 2006 Photonic Generation of Microwave Signal Using

    E-Print Network [OSTI]

    Yao, Jianping

    804 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 2, FEBRUARY 2006 Photonic Generation of Microwave Signal Using a Dual-Wavelength Single-Longitudinal-Mode Fiber Ring Laser Xiangfei of high-fre- quency microwave signals using a dual-wavelength single-longitu- dinal-mode fiber ring laser

  15. 3470 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 61, NO. 9, SEPTEMBER 2013 Photonic-Assisted Microwave Channelizer With

    E-Print Network [OSTI]

    Yao, Jianping

    3470 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 61, NO. 9, SEPTEMBER 2013 Photonic-Assisted Microwave Channelizer With Improved Channel Characteristics Based on Spectrum-Controlled Stimulated, Senior Member, IEEE, and Jianping Yao, Fellow, IEEE Abstract--A photonic-assisted microwave channelizer

  16. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 39, NO. 12, DECEMBER 1991 1931 Aperture Synthesis Concepts in Microwave

    E-Print Network [OSTI]

    Ruf, Christopher

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 39, NO. 12, DECEMBER 1991 1931 Aperture Synthesis Concepts in Microwave Remote Sensing of the Earth Calvin T. Swift, Fellow, IEEE, David M. Le of magnitude overwhat is presently achieved by microwave imaging systems that are collecting data from earth

  17. 422 IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 19, NO. 6, JUNE 2009 Instantaneous Microwave Frequency Measurement

    E-Print Network [OSTI]

    Yao, Jianping

    422 IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 19, NO. 6, JUNE 2009 Instantaneous Microwave Frequency Measurement Using an Optical Phase Modulator Xiaomin Zhang, Hao Chi, Xianmin Zhang technique for instantaneous microwave fre- quency measurement using an optical phase modulator is proposed

  18. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 58, NO. 11, NOVEMBER 2010 3279 Nonuniformly Spaced Photonic Microwave

    E-Print Network [OSTI]

    Yao, Jianping

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 58, NO. 11, NOVEMBER 2010 3279 Nonuniformly Spaced Photonic Microwave Delay-Line Filters and Applications Yitang Dai and Jianping Yao, Senior Member, IEEE Abstract--A finite impulse response (FIR) filter for microwave signal processing implemented

  19. 4002 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 11, NOVEMBER 2006 Programmable Photonic Microwave Filters With

    E-Print Network [OSTI]

    Purdue University

    4002 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 11, NOVEMBER 2006 Programmable Photonic Microwave Filters With Arbitrary Ultra-Wideband Phase Response Shijun Xiao, Member, IEEE for synthesis of programmable microwave phase filters over an ultra-wideband. Our scheme relies

  20. Communications device identification methods, communications methods, wireless communications readers, wireless communications systems, and articles of manufacture

    SciTech Connect (OSTI)

    Steele, Kerry D [Kennewick, WA; Anderson, Gordon A [Benton City, WA; Gilbert, Ronald W [Morgan Hill, CA

    2011-02-01

    Communications device identification methods, communications methods, wireless communications readers, wireless communications systems, and articles of manufacture are described. In one aspect, a communications device identification method includes providing identification information regarding a group of wireless identification devices within a wireless communications range of a reader, using the provided identification information, selecting one of a plurality of different search procedures for identifying unidentified ones of the wireless identification devices within the wireless communications range, and identifying at least some of the unidentified ones of the wireless identification devices using the selected one of the search procedures.

  1. Optimized ECR plasma apparatus with varied microwave window thickness

    DOE Patents [OSTI]

    Berry, Lee A. (Oak Ridge, TN)

    1995-01-01

    The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma density to a specimen, uniform energy absorption by the plasma is desired. By controlling the radial profile of the microwave power transmitted through the microwave window of a reactor, the profile of the transmitted energy to the plasma can be controlled in order to have uniform energy absorption by the plasma. An advantage of controlling the profile using the window transmission characteristics is that variations to the radial profile of microwave power can be made without changing the microwave coupler or reactor design.

  2. Optimized ECR plasma apparatus with varied microwave window thickness

    DOE Patents [OSTI]

    Berry, L.A.

    1995-11-14

    The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma density to a specimen, uniform energy absorption by the plasma is desired. By controlling the radial profile of the microwave power transmitted through the microwave window of a reactor, the profile of the transmitted energy to the plasma can be controlled in order to have uniform energy absorption by the plasma. An advantage of controlling the profile using the window transmission characteristics is that variations to the radial profile of microwave power can be made without changing the microwave coupler or reactor design. 9 figs.

  3. Simple Microwave Method for Detecting Water Holdup

    E-Print Network [OSTI]

    Iqbal, Sheikh Sharif

    combinations of oil and water contents. The #12;reflection responses (S11) of the pipe with water level rangingSimple Microwave Method for Detecting Water Holdup Sheikh S. I., Alqurashi K. Y., Ragheb H to determine the water holdup of a near horizontal oil carrying pipeline. This technique is particularly useful

  4. Planar controlled zone microwave plasma system

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Morrell, Jonathan S. (Knoxvlle, TN)

    2011-10-04

    An apparatus and method for initiating a process gas plasma. A conductive plate having a plurality of conductive fingers is positioned in a microwave applicator. An arc forms between the conductive fingers to initiate the formation of a plasma. A transport mechanism may convey process materials through the plasma. A spray port may be provided to expel processed materials.

  5. Microwave and Terahertz wave sensing with metamaterials

    E-Print Network [OSTI]

    Zhang, Xin

    Microwave and Terahertz wave sensing with metamaterials Hu Tao,1 Emil A. Kadlec,2 Andrew C designed, fabricated, and characterized metamaterial enhanced bimaterial cantilever pixels for far codes: (160.3918) Metamaterials; (040.2235) Detectors, Far infrared or terahertz; (050.6875) Three

  6. The Polarization of the Cosmic Microwave Background

    E-Print Network [OSTI]

    Matias Zaldarriaga

    2003-05-15

    We summarize the physical mechanism by which the Cosmic Microwave Background acquires a small degree of polarization. We discuss the imprint left by gravitational waves and the use of polarization as a test of the inflationary paradigm. We discuss some physical processes that affect the CMB polarization after recombination such as gravitational lensing and the reionization of the universe.

  7. Microwave Sensors Active and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    Chapter 6 Microwave Sensors ­ Active and Passive David G. Long Electrical and Computer Engineering Department Brigham Young University Center for Remote Sensing 459 Clyde Building, Provo, UT 84602, long be classified as either passive (radiometers) or active (radars). Each sensor class provides unique insight

  8. Analysis of characteristic of microwave regeneration for diesel particulate filter

    SciTech Connect (OSTI)

    Ning Zhi; Zhang Guanglong; Lu Yong; Liu Junmin; Gao Xiyan; Liang Iunhui; Chen Jiahua [Dalian Univ. of Technology (China)

    1995-12-31

    The mathematical model for the microwave regeneration of diesel particulate filter is proposed according to the characteristic of microwave regeneration process. The model is used to calculate the temperature field, distribution of particulate and density field of oxygen in the filter during the process of regeneration with typical ceramic foam particulate filter data. The parametric study demonstrates how some of the main parameters, such as microwave attenuation constant of the filter, filter particulate loading, the power and distribution of microwave energy and so on, affect the efficiency of regeneration, the maximum filter temperature and regeneration duration. The results show that it is possible to regenerate the diesel particulate filters in certain conditions by using microwave energy. This paper can give one a whole understanding to several main factors that have effects on the process of microwave regeneration and provide a theoretical basis for the optimal design of the microwave regeneration system.

  9. Hardin-Hilltop Wind Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam: Energy Resources JumpConsulting JumpHanoverKentucky:

  10. Note: A novel design of a microwave feed for a microwave frequency standard with a linear ion trap

    SciTech Connect (OSTI)

    Zhang, J. W., E-mail: zhangjw@tsinghua.edu.cn; Miao, K.; Wang, S. G.; Wang, Z. B. [NIM-THU Joint Institute for Measurement Science (JMI), Tsinghua University, Beijing 100084 (China); Department of Precision Instrument, Tsinghua University, Beijing 100084 (China)

    2014-07-15

    Linear ion traps are important tools in many applications, particularly in mass spectrum analyzers and frequency standards. Here a novel design of a microwave feed integrated into one electrode of a linear quadrupole ion trap is demonstrated for the application of a microwave frequency standard based on cadmium ions. The mechanical structure of the microwave feed is compact and easy to build. The ion trap integrated with this microwave feed is successfully applied to measure the hyperfine splitting of the ground state of {sup 113}Cd{sup +}, thus demonstrating the practicality and reliability of the microwave feed.

  11. Design and fabrication of InGaN/GaN heterojunction bipolar transistors for microwave power amplifiers

    E-Print Network [OSTI]

    Keogh, David Martin

    2006-01-01

    power, high efficiency microwave amplifiers. ” ProceedingsBipolar Transistors for Microwave Power Amplifiers by DavidBipolar Transistors For Microwave Power Amplifiers A

  12. Office of Communication - Speakers' Bureau

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

    Office of Communication Office of Communication home | Office of Communication staff | speakers' bureau | available materials | links | talk to Fermilab Speakers' Bureau The Office...

  13. Apparatus and method for microwave processing of materials

    DOE Patents [OSTI]

    Johnson, A.C.; Lauf, R.J.; Bible, D.W.; Markunas, R.J.

    1996-05-28

    Disclosed is a variable frequency microwave heating apparatus designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity for testing or other selected applications. The variable frequency heating apparatus is used in the method of the present invention to monitor the resonant processing frequency within the furnace cavity depending upon the material, including the state thereof, from which the workpiece is fabricated. The variable frequency microwave heating apparatus includes a microwave signal generator and a high-power microwave amplifier or a microwave voltage-controlled oscillator. A power supply is provided for operation of the high-power microwave oscillator or microwave amplifier. A directional coupler is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load. 10 figs.

  14. Apparatus and method for microwave processing of materials

    DOE Patents [OSTI]

    Johnson, Arvid C. (Lake in the Hills, IL); Lauf, Robert J. (Oak Ridge, TN); Bible, Don W. (Clinton, TN); Markunas, Robert J. (Chapel Hill, NC)

    1996-01-01

    A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency heating apparatus (10) is used in the method of the present invention to monitor the resonant processing frequency within the furnace cavity (34) depending upon the material, including the state thereof, from which the workpiece (36) is fabricated. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a microwave voltage-controlled oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

  15. Apparatus and method for microwave processing of materials using field-perturbing tool

    DOE Patents [OSTI]

    Tucker, Denise A. (Raleigh, NC); Fathi, Zakaryae (Cary, NC); Lauf, Robert J. (Oak Ridge, TN)

    2001-01-01

    A variable frequency microwave heating apparatus designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity for heating or other selected applications. A field-perturbing tool is disposed within the cavity to perturb the microwave power distribution in order to apply a desired level of microwave power to the workpiece.

  16. Coding for Cooperative Communications 

    E-Print Network [OSTI]

    Uppal, Momin Ayub

    2011-10-21

    The area of cooperative communications has received tremendous research interest in recent years. This interest is not unwarranted, since cooperative communications promises the ever-so-sought after diversity and ...

  17. Digital Wireless Communication

    E-Print Network [OSTI]

    Heath Jr., - Robert W.

    Digital Wireless Communication: Physical Layer Exploitation Wireless Networking and Communications 30, 12 #12;Wireless is Everywhere cellular networks local area networks personal area networks emerging applications Thursday, August 30, 12 #12;Where is Wireless Taught? 3 Undergraduate Graduate

  18. Chemistry & Biology Brief Communication

    E-Print Network [OSTI]

    Zhao, Huimin

    Chemistry & Biology Brief Communication Cloning, IL 61801, USA 3Department of Chemistry 4Department of Chemical and Biomolecular Engineering

  19. Communicating Design Research Effectively

    E-Print Network [OSTI]

    Roschuni, Celeste Nicole

    2012-01-01

    5.3 Persuasion in Design . . . . . . . . . . . . . .2 Design Process andCommunication 2.1 Design Process Models . . . . . . . . .

  20. Microwave-cut silicon layer transfer

    SciTech Connect (OSTI)

    Thompson, D.C.; Alford, T.L.; Mayer, J.W.; Hochbauer, T.; Nastasi, M.; Lau, S.S.; Theodore, N. David; Henttinen, K.; Suni, Ilkka; Chu, Paul K. [Department of Chemical and Materials Engineering, Arizona State University, Tempe, Arizona 85287-6006 (United States); Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States); Department of Electrical and Computer Engineering, University of California at San Diego, San Diego, California 92093 (United States); Advanced Products Research and Development Laboratory, Freescale Semiconductor Incorporated, 2100 East Elliot Road, Tempe, Arizona 85284 (United States); VTT Centre for Microelectronics, P.O. Box 1208, 02044 VTT (Finland); Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (China)

    2005-11-28

    Microwave heating is used to initiate exfoliation of silicon layers in conjunction with the ion-cut process for transfer of silicon layers onto insulator or heterogeneous layered substrates. Samples were processed inside a 2.45 GHz, 1300 W cavity applicator microwave system for time durations as low as 12 s. This is a significant decrease in exfoliation incubation times. Sample temperatures measured by pyrometry were within previous published ranges. Rutherford backscattering spectrometry and cross-sectional transmission electron microscopy were used to determine layer thickness and crystallinity. Surface quality was measured by using atomic force microscopy. Hall measurements were used to characterize electrical properties as a function of postcut anneal time and temperature.

  1. Double-Slit Experiments with Microwave Billiards

    E-Print Network [OSTI]

    S. Bittner; B. Dietz; M. Miski-Oglu; P. Oria Iriarte; A. Richter; F. Schäfer

    2011-07-27

    Single and double-slit experiments are performed with two microwave billiards with the shapes of a rectangle, respectively, a quarter stadium. The classical dynamics of the former is regular, that of the latter is chaotic. Microwaves can leave the billiards via slits in the boundary, forming interference patterns on a screen. The aim is to determine the effect of the billiard dynamics on their structure. For this the development of a method for the construction of a directed wave packet by means of an array of multiple antennas was crucial. The interference patterns show a sensitive dependence not only on the billiard dynamics but also on the initial position and direction of the wave packet.

  2. Nonlinear multiferroic phase shifters for microwave frequencies

    SciTech Connect (OSTI)

    Ustinov, Alexey B.; Kalinikos, Boris A. [Department of Physical Electronics and Technology, St. Petersburg Electrotechnical University, St. Petersburg 197376 (Russian Federation); Srinivasan, G. [Department of Physics, Oakland University, Rochester, Michigan 48309 (United States)

    2014-02-03

    A nonlinear microwave phase shifter based on a planar multiferroic composite has been studied. The multiferroic structure is fabricated in the form of a bilayer consisting of yttrium iron garnet and barium strontium titanate. The principle of operation of the device is based on the linear and nonlinear control of the phase shift of the hybrid spin-electromagnetic waves propagating in the bilayer. The linear control is realized with magnetic and electric fields. The nonlinear control is provided by the input power of microwave signal. The device showed a nonlinear phase shift up to 250°, electric field induced phase shift up to 330°, and magnetic field induced phase shift of more than 180°.

  3. Developments in Human Communication

    E-Print Network [OSTI]

    Thompson, Michael

    CMST 1B03 Developments in Human Communication: Part & Present Amanda Etches-Johnson Mills Research in Human Communication Session Outline 1. Finding Books Using MORRIS 2. Finding Journal Articles using: Developments in Human Communication What is MORRIS anyway? · MORRIS is McMaster's library catalogue · Shows

  4. Communication Science Scholarships

    E-Print Network [OSTI]

    Almor, Amit

    Communication Science Scholarships Complete Scholarship Name Application Deadline Date Contact Name pursuing a graduate degree within the Communication Sciences & Disorders Department. Yes, by nomination of department faculty Rolling Karen Mullis 803.777.4813 kmullis@mailbox.sc.edu Communication Sciences

  5. Task Force on Cosmic Microwave Background Research

    E-Print Network [OSTI]

    James Bock; Sarah Church; Mark Devlin; Gary Hinshaw; Andrew Lange; Adrian Lee; Lyman Page; Bruce Partridge; John Ruhl; Max Tegmark; Peter Timbie; Rainer Weiss; Bruce Winstein; Matias Zaldarriaga

    2006-04-05

    One of the most spectacular scientific breakthroughs in past decades was using measurements of the fluctuations in the cosmic microwave background (CMB) to test precisely our understanding of the history and composition of the Universe. This report presents a roadmap for leading CMB research to its logical next step, using precision polarization measurements to learn about ultra-high-energy physics and the Big Bang itself.

  6. Communication using Synchronized Chaotic Systems

    E-Print Network [OSTI]

    Anlage, Steven

    Communication using Synchronized Chaotic Systems Rachel Kramer Adam Cohen Bhargava Ravoori Thomas E the adaptive strategy implemented. communications · Such systems are sensitive to perturbations · Communications systems are sensitive to perturbations in the communication channel · An adaptive strategy has

  7. Quantum and Wave Dynamical Chaos in Superconducting Microwave Billiards

    E-Print Network [OSTI]

    B. Dietz; A. Richter

    2015-04-17

    Experiments with superconducting microwave cavities have been performed in our laboratory for more than two decades. The purpose of the present article is to recapitulate some of the highlights achieved. We briefly review (i) results obtained with flat, cylindrical microwave resonators, so-called microwave billiards, concerning the universal fluctuation properties of the eigenvalues of classically chaotic systems with no, a threefold and a broken symmetry; (ii) summarize our findings concerning the wave-dynamical chaos in three-dimensional microwave cavities; (iii) present a new approach for the understanding of the phenomenon of dynamical tunneling which was developed on the basis of experiments that were performed recently with unprecedented precision, and finally, (iv) give an insight into an ongoing project, where we investigate universal properties of (artificial) graphene with superconducting microwave photonic crystals that are enclosed in a microwave resonator, i.e., so-called Dirac billiards.

  8. A container for heat treating materials in microwave ovens

    DOE Patents [OSTI]

    Holcombe, C.E.; Dykes, N.L.; Kimrey, H.D. Jr.; Mills, J.E.

    1988-01-26

    The efficiency of a microwave oven of a conventional two-source configuration and energy level is increased by providing the oven with a container for housing a refractory material to be treated. The container is formed to top and bottom walls transparent to microwaves while the sidewalls, in a circular configuration, are formed of a nonmetallic material opaque to microwave radiation for reflecting the radiation penetrating the top and bottom walls radially inwardly into the center of the container wherein a casket of heat-insulating material is provided for housing the material to be heat treated. The reflection of the microwave radiation from the sidewalls increases the concentration of the microwaves upon the material being heat treated while the concentration of the microwaves upon the material being heat treated while the casket retains the heat to permit the heating of the material to a substantially higher temperature than achievable in the oven without the container.

  9. Joining of thermoplastic substrates by microwaves

    DOE Patents [OSTI]

    Paulauskas, Felix L. (Oak Ridge, TN); Meek, Thomas T. (Knoxville, TN)

    1997-01-01

    A method for joining two or more items having surfaces of thermoplastic material includes the steps of depositing an electrically-conductive material upon the thermoplastic surface of at least one of the items, and then placing the other of the two items adjacent the one item so that the deposited material is in intimate contact with the surfaces of both the one and the other items. The deposited material and the thermoplastic surfaces contacted thereby are then exposed to microwave radiation so that the thermoplastic surfaces in contact with the deposited material melt, and then pressure is applied to the two items so that the melted thermoplastic surfaces fuse to one another. Upon discontinuance of the exposure to the microwave energy, and after permitting the thermoplastic surfaces to cool from the melted condition, the two items are joined together by the fused thermoplastic surfaces. The deposited material has a thickness which is preferably no greater than a skin depth, .delta..sub.s, which is related to the frequency of the microwave radiation and characteristics of the deposited material in accordance with an equation.

  10. dissociation in ArO surface-wave microwave discharges

    E-Print Network [OSTI]

    Guerra, Vasco

    O 2 dissociation in Ar­O 2 surface-wave microwave discharges This article has been downloaded from.1088/0022-3727/45/19/195205 O2 dissociation in Ar­O2 surface-wave microwave discharges Kinga Kutasi1 , Paulo A S´a2,3 and Vasco in Ar­O2 surface-wave microwave discharges. The dissociation degree of O2 molecules ([O]/2[O2

  11. Assessment of microwave power flow for reflectometry measurements in tokamak plasmas

    E-Print Network [OSTI]

    Gourdain, P-A; Peebles, W. A.

    2008-01-01

    of incident and reflected microwave rays for O-mode and X-Assessment of microwave power flow for reflectometryLos Angeles, CA 90095-1547 Microwave diagnostics, such as

  12. A Reconfigurable Microwave Photonic Channelized Receiver Based on Dense Wavelength Division Multiplexing Using an Optical Comb

    E-Print Network [OSTI]

    Yao, Jianping

    A Reconfigurable Microwave Photonic Channelized Receiver Based on Dense Wavelength Division, Hangzhou, 310027 China b Microwave Photonics Research Laboratory, School of Information Technology: Received 27 September 2011 Accepted 13 January 2012 Available online 30 January 2012 Keywords: Microwave

  13. Electrically detected magnetic resonance in a W-band microwave cavity

    E-Print Network [OSTI]

    Lang, V.

    2012-01-01

    resonance in a W-band microwave cavity V. Lang, 1, ? C. C.resonant W-band (94 GHz) microwave cavity. The advantages ofmagnetic ?elds and high microwave frequencies is therefore a

  14. Plasma and Beam Production Experiments with HYBRIS, a Microwave-assisted H- Ion

    E-Print Network [OSTI]

    Keller, R. AUTHOR-Kwan, S.; Hahto, S.; Regis, M.; Wallig, J.

    2006-01-01

    Experiments with HYBRIS, a Microwave-assisted H - Ionvoltage. The reflected microwave power, however, amounted toE lect(500 mA) Collector Microwave power (W) FIGURE 7. H -

  15. 1 Filter_Supplemental-Info_090913.doc Supplemental Information Regarding RF/Microwave Filter Design

    E-Print Network [OSTI]

    Weller/USF 1 Filter_Supplemental-Info_090913.doc Supplemental Information Regarding RF/Microwave Filter Design The video module on RF/microwave filter design, Filter Demonstration in Microwave Office

  16. A STUDY OF MICROWAVE INSTABILITIES BY MEANS OF A SQUARE-WELL POTENTIAL

    E-Print Network [OSTI]

    Kim, K.-J.

    2010-01-01

    a more realistic theory of microwave·~nstabi1ities.16-27, 1979 A STUDY OF MICROWAVE INSTABILITIES BY MEANS OF ABerkeley A Study of Microwave Instabilities by means of a

  17. Integrated microwave and millimeter-wave phased-array designs in silicon technologies

    E-Print Network [OSTI]

    Koh, Kwang-Jin

    2008-01-01

    RF/Microwave Phased-Array Design: X-/Ku-Band 8-ElementPhased-array Receiver,” Microwave Journal, vol. 50, no. 5,power divider,” IRE Trans. Microwave Theory & Tech. , vol.

  18. Linear, Low Noise Microwave Photonic Systems using Phase and Frequency Modulation

    E-Print Network [OSTI]

    Wyrwas, John Michael

    2012-01-01

    ii List of Figures Microwave photonics frequencies ofof signal propagation in a microwave photonic link. The out-optical FM-FDM Gb/s microwave PSK signals,” IEEE Photonics

  19. A Permanent-Magnet Microwave Ion Source for a Compact High-Yield Neutron Generator

    E-Print Network [OSTI]

    Waldmann, Ole

    2011-01-01

    A Permanent-Magnet Microwave Ion Source for a Compact High-A Permanent-Magnet Microwave Ion Source for a Compact High-on the development of a microwave ion source that will be

  20. Noncommutative Black-Body Radiation: Implications On Cosmic Microwave Background

    E-Print Network [OSTI]

    Amir H. Fatollahi; Maryam Hajirahimi

    2006-07-12

    Including loop corrections, black-body radiation in noncommutative space is anisotropic. A direct implication of possible space noncommutativity on the Cosmic Microwave Background map is argued.

  1. Microwave Plasma Monitoring System For Real-Time Elemental Analysis

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

    System Microwave Plasma Monitoring System For Real-Time Elemental Analysis The invention apparatus can also be used to monitor for the presence of halogens, sulfur and...

  2. Method and apparatus for thickness measurement using microwaves

    DOE Patents [OSTI]

    Woskov, Paul (Bedford, MA) [Bedford, MA; Lamar, David A. (West Richland, WA) [West Richland, WA

    2001-01-01

    The method for measuring the thickness of a material which transmits a detectable amount of microwave radiation includes irradiating the material with coherent microwave radiation tuned over a frequency range. Reflected microwave radiation is detected, the reflected radiation having maxima and minima over the frequency range as a result of coherent interference of microwaves reflected from reflecting surfaces of the material. The thickness of the material is determined from the period of the maxima and minima along with knowledge of the index of refraction of the material.

  3. New Energy Efficiency Standards for Microwave Ovens to Save Consumers...

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

    today that the Energy Department has finalized new energy efficiency standards for microwave ovens that will save consumers nearly 3 billion on their energy bills through 2030....

  4. Applications of Substrate Integrated Waveguide (SIW) Structure in Microwave Engineering

    E-Print Network [OSTI]

    Shen, Zhi

    2015-01-01

    Constantine A. Advanced engineering electromagnetics. Vol.Structure in Microwave Engineering A thesis submitted inof Science in Electrical Engineering by Zhi Shen © Copyright

  5. Broadband microwave burst produced by electron beams

    E-Print Network [OSTI]

    A. T. Altyntsev; G. D. Fleishman; G. -L. Huang; V. F. Melnikov

    2007-12-16

    Theoretical and experimental study of fast electron beams attracts a lot of attention in the astrophysics and laboratory. In the case of solar flares the problem of reliable beam detection and diagnostics is of exceptional importance. This paper explores the fact that the electron beams moving oblique to the magnetic field or along the field with some angular scatter around the beam propagation direction can generate microwave continuum bursts via gyrosynchrotron mechanism. The characteristics of the microwave bursts produced by beams differ from those in case of isotropic or loss-cone distributions, which suggests a new tool for quantitative diagnostics of the beams in the solar corona. To demonstrate the potentiality of this tool, we analyze here a radio burst occurred during an impulsive flare 1B/M6.7 on 10 March 2001 (AR 9368, N27W42). Based on detailed analysis of the spectral, temporal, and spatial relationships, we obtained firm evidence that the microwave continuum burst is produced by electron beams. For the first time we developed and applied a new forward fitting algorithm based on exact gyrosynchrotron formulae and employing both the total power and polarization measurements to solve the inverse problem of the beam diagnostics. We found that the burst is generated by a oblique beam in a region of reasonably strong magnetic field ($\\sim 200-300$ G) and the burst is observed at a quasi-transverse viewing angle. We found that the life time of the emitting electrons in the radio source is relatively short, $\\tau_l \\approx 0.5$ s, consistent with a single reflection of the electrons from a magnetic mirror at the foot point with the stronger magnetic field. We discuss the implications of these findings for the electron acceleration in flares and for beam diagnostics.

  6. Microwaves and particle accelerators: a fundamental link

    SciTech Connect (OSTI)

    Chattopadhyay, Swapan [Universities of Lancaster, Liverpool and Manchester and Cockcroft Institute, Cheshire (United Kingdom)

    2011-07-01

    John Cockcroft's splitting of the atom and Ernest Lawrence's invention of the cyclotron in the first half of the twentieth century ushered in the grand era of ever higher energy particle accelerators to probe deeper into matter. It also forged a link, bonding scientific discovery with technological innovation that continues today in the twenty first century. The development of radar and high power vacuum electronics, especially microwave power tubes like the magnetrons and the klystrons in the pre-second world war era, was instrumental in the rapid development of circular and linear charged particle accelerators in the second half of the twentieth century. We had harnessed the powerful microwave radio-frequency sources from few tens of MHz to up to 90 GHz spanning L-band to W-band frequencies. Simultaneously in the second half of the twentieth century, lasers began to offer very first opportunities of controlling charged particles at smaller resolutions on the scale of wavelengths of visible light. We also witnessed in this period the emergence of the photon and neutron sciences driven by accelerators built-by-design producing tailored and ultra-bright pulses of bright photons and neutrons to probe structure and function of matter from aggregate to individual molecular and atomic scales in unexplored territories in material and life sciences. As we enter the twenty first century, the race for ever higher energies, brightness and luminosity to probe atto-metric and atto-second domains of the ultra-small structures and ultra-fast processes continues. These developments depend crucially on yet further advancements in the production and control of high power and high frequency microwaves and light sources, often intricately coupled in their operation to the high energy beams themselves. We give a glimpse of the recent developments and innovations in the electromagnetic production and control of charged particle beams in the service of science and society. (author)

  7. Accuracy of an Atomic Microwave Power Standard (Conference digest)

    E-Print Network [OSTI]

    Paulusse, D C; Michaud, A; Paulusse, David C.; Rowell, Nelson L.; Michaud, Alain

    2004-01-01

    We have studied the accuracy of the atomic microwave power standard. The atoms are cooled and kept in a Magneto-Optical Trap (MOT), then dropped through a terminated transmission line (a rectangular, R-70 type, waveguide). The measurement of the internal atomic state allows an accurate determination of the transmitted microwave power.

  8. Scanning multichannel microwave radiometer snow water equivalent assimilation

    E-Print Network [OSTI]

    Walker, Jeff

    ,2 Jeffrey P. Walker,3 Paul R. Houser,4 and Chaojiao Sun2,5 Received 16 February 2006; revised 7 December. Citation: Dong, J., J. P. Walker, P. R. Houser, and C. Sun (2007), Scanning multichannel microwave; Rodell et al., 2004]. [3] Space-borne passive microwave sensors provide an alternate capability

  9. Gun Injection into a Microwave Plasma J. C. Sprott

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    Gun Injection into a Microwave Plasma by J. C. Sprott May, 1970 Plasma Studies University high densities by rapid pulsed gun injection. TIlis no te describes measurements made -Cwo years ago in which a gun plasma was injected into a background microwave plasma of variable density in the toroidal

  10. Microwave sintering of sol-gel derived abrasive grain

    DOE Patents [OSTI]

    Plovnick, Ross (St. Louis Park, MN); Celikkaya, Ahmet (Woodbury, MN); Blake, Rodger D. (Tuscon, AZ)

    1997-01-01

    A method is provided for making microwave-sintered, free flowing alpha alumina-based ceramic abrasive grain, under conditions effective to couple microwaves with calcined alpha alumina-based abrasive gain precursor and sinter it at a temperature of at least about 1150.degree. C.

  11. Microwave sintering of single plate-shaped articles

    DOE Patents [OSTI]

    Katz, Joel D. (Los Alamos, NM); Blake, Rodger D. (Tucson, AZ)

    1995-01-01

    Apparatus and method for high temperature sintering of plate-shaped articles of alumina, magnesia, silica, yttria, zirconia, and mixtures thereof using microwave radiation. An article is placed within a sintering structure located within a sintering container which is placed in a microwave cavity for heating. The rates at which heating and cooling take place is controlled.

  12. Microwave sintering of single plate-shaped articles

    DOE Patents [OSTI]

    Katz, J.D.; Blake, R.D.

    1995-07-11

    Apparatus and method are disclosed for high temperature sintering of plate-shaped articles of alumina, magnesia, silica, yttria, zirconia, and mixtures thereof using microwave radiation. An article is placed within a sintering structure located within a sintering container which is placed in a microwave cavity for heating. The rates at which heating and cooling take place is controlled. 2 figs.

  13. 140 GHz pulsed Fourier transform microwave spectrometer

    DOE Patents [OSTI]

    Kolbe, W.F.; Leskovar, B.

    1985-07-29

    A high frequency energy pulsing system suitable for use in a pulsed microwave spectrometer, including means for generating a high frequency carrier signal, and means for generating a low frequency modulating signal. The carrier signal is continuously fed to a modulator and the modulating signal is fed through a pulse switch to the modulator. When the pulse switch is on, the modulator will produce sideband signals above and below the carrier signal frequency. A frequency-responsive device is tuned to one of the sideband signals and sway from the carrier frequency so that the high frequency energization of the frequency-responsive device is controlled by the pulse switch.

  14. Microwave fidelity studies by varying antenna coupling

    E-Print Network [OSTI]

    B. Köber; U. Kuhl; H. -J. Stöckmann; T. Gorin; D. V. Savin; T. H. Seligman

    2010-09-16

    The fidelity decay in a microwave billiard is considered, where the coupling to an attached antenna is varied. The resulting quantity, coupling fidelity, is experimentally studied for three different terminators of the varied antenna: a hard wall reflection, an open wall reflection, and a 50 Ohm load, corresponding to a totally open channel. The model description in terms of an effective Hamiltonian with a complex coupling constant is given. Quantitative agreement is found with the theory obtained from a modified VWZ approach [Verbaarschot et al, Phys. Rep. 129, 367 (1985)].

  15. SKA synergy with Microwave Background studies

    E-Print Network [OSTI]

    Burigana, Carlo; Baccigalupi, Carlo; Barbosa, Domingos; Blanchard, Alain; De Rosa, Adriano; de Zotti, Gianfranco; Finelli, Fabio; Gruppuso, Alessandro; Jones, Michael; Matarrese, Sabino; Melchiorri, Alessandro; Molinari, Diego; Negrello, Mattia; Paoletti, Daniela; Perrotta, Francesca; Scaramella, Roberto; Trombetti, Tiziana

    2015-01-01

    The extremely high sensitivity and resolution of the Square Kilometre Array (SKA) will be useful for addressing a wide set of themes relevant for cosmology, in synergy with current and future cosmic microwave background (CMB) projects. Many of these themes also have a link with future optical-IR and X-ray observations. We discuss the scientific perspectives for these goals, the instrumental requirements and the observational and data analysis approaches, and identify several topics that are important for cosmology and astrophysics at different cosmic epochs.

  16. On-Chip Josephson Junction Microwave Switch

    E-Print Network [OSTI]

    O. Naaman; M. O. Abutaleb; C. Kirby; M. Rennie

    2015-12-04

    The authors report on the design and measurement of a reflective single-pole single-throw microwave switch with no internal power dissipation, based on a superconducting circuit containing a single Josephson junction. The data demonstrate the switch operation with 2 GHz instantaneous bandwidth centered at 10 GHz, low insertion loss, and better than 20 dB on/off ratio. The switch's measured performance agrees well with simulations for input powers up to -100 dBm. An extension of the demonstrated circuit to implement a single-pole double-throw switch is shown in simulation.

  17. Paratek Microwave Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio Program |View NewParatek Microwave Inc Jump to: navigation, search

  18. ARM - Field Campaign - Microwave Radiometer Profiler Evaluation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design togovCampaignsMASRAD: Pt. Reyes Stratus CloudAtmosphericgovCampaignsMicrowave

  19. Microwave Melting | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGE OFDetection ofOctober10 Years2,2004Microwave Melting

  20. I. INTRODUCTION Inter-robotic communication and swarm communication

    E-Print Network [OSTI]

    Meeden, Lisa A.

    1 I. INTRODUCTION Inter-robotic communication and swarm communication are a fascinating area of developing research. Several papers have focused on how communication in a swarm of agents can develop grounded communication systems using very simple communication frameworks, but few have compared a variety

  1. Processus communicants Communication synchrone CSP/CCS/-calcul

    E-Print Network [OSTI]

    Grigoras, .Romulus

    Processus communicants Communication synchrone CSP/CCS/-calcul Rendez-vous étendu Ada Huitième partie Processus communicants CSP/Ada Systèmes concurrents 2 / 44 #12;Processus communicants Communication synchrone CSP/CCS/-calcul Rendez-vous étendu Ada Principes Synchronisation Désignation

  2. Notifications and Communications

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

    1997-08-21

    This volume provides a description of appropriate notifications and communications during an emergency. Canceled by DOE G 151.1-4.

  3. Mobile system for microwave removal of concrete surfaces

    DOE Patents [OSTI]

    White, Terry L. (Oak Ridge, TN); Bigelow, Timothy S. (Knoxville, TN); Schaich, Charles R. (Lenoir City, TN); Foster, Jr., Don (Knoxville, TN)

    1997-01-01

    A method and apparatus for the microwave removal of contaminated concrete surfaces. The apparatus comprises a housing adapted to pass over a support surface. The housing includes a waveguide for directing microwave energy to the surface at an angle maximizing absorption of microwave energy by the surface. The apparatus is further provided with a source of microwave energy operably associated with the waveguide, wherein the microwave energy has a frequency of between about 10.6 GHz and about 24 GHz and acts to remove the uppermost layer from the surface. The apparatus further includes a debris containment assembly comprising a vacuum assembly operably associated with the housing. The vacuum assembly is adapted to remove debris from the area adjacent the surface.

  4. Yttrium oxide transparent ceramics by low-temperature microwave sintering

    SciTech Connect (OSTI)

    Luo, Junming, E-mail: ljmniat@126.com [School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063 (China)] [School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063 (China); Zhong, Zhenchen; Xu, Jilin [School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063 (China)] [School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063 (China)

    2012-12-15

    Graphical abstract: The figure shows the SEM photos of the surfaces of the Y{sub 2}O{sub 3} transparent ceramic samples obtained by microwave sintering and vacuum sintering. It is clearly demonstrated that the grain distribution of the vacuum sintering sample is not uniform with the smallest and the largest particle size at about 2 ?m and 15 ?m respectively, while the grain distribution of microwave sintering sample is uniform with the average diameter at about 2–4 ?m (the smallest reported so far) and with no abnormal growth-up or coarsening phenomenon. We have further found out that the smaller the grain size, the higher the mechanical and optical properties. Display Omitted Highlights: ? The microwave sintering temperature of the sample is lower compared with vacuum. ? The microwave sintering time of the sample is shorter compared with vacuum. ? The mechanical properties of the microwave sintering sample is improved greatly. ? The Y{sub 2}O{sub 3} grain of microwave sintering sample is the smallest reported so far. -- Abstract: Yttrium oxide (Y{sub 2}O{sub 3}) transparent ceramics samples have been successfully fabricated by microwave sintering processing at relatively low temperatures. In comparison with the vacuum sintering processing, Y{sub 2}O{sub 3} transparent ceramics can be obtained by microwave sintering at lower sintering temperature and shorter sintering time, and they possess higher transmittances and mechanical properties. The technologies of low-temperature microwave sintering and the relationships of the microstructures and properties of the specified samples have been investigated in detail. We have found out that the low-temperature microwave sintering technique has its obvious advantages over the conventional methods in manufacturing yttrium oxide transparent ceramics.

  5. Interstellar communication: The case for spread spectrum

    E-Print Network [OSTI]

    Messerschmitt, David G

    2012-01-01

    D. G. Messerschmitt, Digital communication. Boston: KluwerDesign of interstellar digital communication links: Somein- sights from communication engineering,” Acta

  6. Scholarly Communication: Academic Values and Sustainable Models

    E-Print Network [OSTI]

    King, C. Judson; Harley, Diane; Earl-Novell, Sarah; Arter, Jennifer; Lawrence, Shannon; Perciali, Irene

    2006-01-01

    Technology and Scholarly Communication. Berkeley: UniversitySCHOLARLY COMMUNICATION: ACADEMIC VALUES AND SUSTAINABLEEducation Scholarly Communication: Academic Values and

  7. HAZARD COMMUNICATION PROGRAM The______________________________ Department has developed a Hazard Communication

    E-Print Network [OSTI]

    Zhang, Yuanlin

    HAZARD COMMUNICATION PROGRAM The______________________________ Department has developed a Hazard about chemical hazards and other hazardous substances via our comprehensive Hazard Communication Program. The Hazard Communication Program will include: WORKPLACE CHEMICAL LIST MATERIAL SAFETY DATA SHEETS CONTAINER

  8. Wireless Communications Research Lab Communications Research at WVU

    E-Print Network [OSTI]

    Reynolds, Daryl

    Theory Statistics Empirical Communication Theory Modern Communicatio Lab (WCRL) · Classes related to communications research · The relationship between information theory, communication theory, and signal processing. · Point-point information theory · Flow networks and the max

  9. Intercultural Communication in the Global Classroom

    E-Print Network [OSTI]

    Herrington, TyAnna K.; Tretyakov, Yuri P.

    2012-01-01

    Concepts of Intercultural Communication/Ed. M.J. Ben- net.and Transfer// Written Communication. 1985. Vol. 2. P. 307-Task- ing // Technical Communication Quarterly. Summer 1999.

  10. Challenges and opportunities for multi-functional oxide thin films for voltage tunable radio frequency/microwave components

    SciTech Connect (OSTI)

    Subramanyam, Guru, E-mail: gsubramanyam1@udayton.edu [Department of Electrical and Computer Engineering, University of Dayton, Dayton, Ohio 45469 (United States); Cole, M. W., E-mail: melanie.w.cole.civ@mail.mil [U.S. Army Research Laboratory, Weapons and Materials Research Directorate, Aberdeen Proving Ground, Maryland 21005 (United States); Sun, Nian X. [Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115 (United States); Kalkur, Thottam S. [Department of Electrical and Computer Engineering, University of Colorado, Colorado Springs, Colorado 80918 (United States); Sbrockey, Nick M.; Tompa, Gary S. [Structured Materials Industries, Inc., Piscataway, New Jersey 08854 (United States); Guo, Xiaomei [Boston Applied Technologies, Inc., Woburn, Massachusetts 01801 (United States); Chen, Chonglin [Department of Physics and Astronomy, University of Texas, San Antonio, Texas 78249 (United States); Alpay, S. P.; Rossetti, G. A. [Institute of Materials Science and Materials Science and Engineering Program, University of Connecticut, Storrs, Connecticut 06269 (United States); Dayal, Kaushik [Mechanics, Materials and Computing, Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Chen, Long-Qing [Department of Materials Science and Engineering, Penn State University, University Park, Pennsylvania 16802 (United States); Schlom, Darrell G. [Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853 (United States); Kavli Institute at Cornell for Nanoscale Science, Ithaca, New York 14853 (United States)

    2013-11-21

    There has been significant progress on the fundamental science and technological applications of complex oxides and multiferroics. Among complex oxide thin films, barium strontium titanate (BST) has become the material of choice for room-temperature-based voltage-tunable dielectric thin films, due to its large dielectric tunability and low microwave loss at room temperature. BST thin film varactor technology based reconfigurable radio frequency (RF)/microwave components have been demonstrated with the potential to lower the size, weight, and power needs of a future generation of communication and radar systems. Low-power multiferroic devices have also been recently demonstrated. Strong magneto-electric coupling has also been demonstrated in different multiferroic heterostructures, which show giant voltage control of the ferromagnetic resonance frequency of more than two octaves. This manuscript reviews recent advances in the processing, and application development for the complex oxides and multiferroics, with the focus on voltage tunable RF/microwave components. The over-arching goal of this review is to provide a synopsis of the current state-of the-art of complex oxide and multiferroic thin film materials and devices, identify technical issues and technical challenges that need to be overcome for successful insertion of the technology for both military and commercial applications, and provide mitigation strategies to address these technical challenges.

  11. One-step implementation of entanglement generation on microwave photons in distant 1D superconducting resonators

    E-Print Network [OSTI]

    Ming Hua; Ming-Jie Tao; Fu-Guo Deng

    2015-08-01

    We present a scalable quantum-bus-based device for generating the entanglement on microwave photons (MPs) in distant superconducting resonators (SRs). Different from the processors in previous works with some resonators coupled to a superconducting qubit (SQ), our device is composed of some 1D SRs $r_j$ which are coupled to the quantum bus (another common resonator $R$) in its different positions simply, assisted by superconducting quantum interferometer devices. By using the technique for catching and releasing a MP state in a 1D SR, it can work as an entanglement generator or a node in quantum communication. To demonstrate the performance of this device, we propose a one-step scheme to generate high-fidelity Bell states on MPs in two distant SRs. It works in the dispersive regime of $r_j$ and $R$, which enables us to extend it to generate high-fidelity multi-Bell states on different resonator pairs simultaneously.

  12. Assessor Training NVLAP Communications

    E-Print Network [OSTI]

    NVLAP Assessor Training NVLAP Communications #12;Assessor Training 2009: NVLAP Communications 2 of assessment. ·Will also discuss other tools, such as internal database and webbased. #12;Assessor Training of assessors at lab · Assignments occur quarterly, in sync with renewal cycles. #12;Assessor Training 2009

  13. WIRELESS DATA COMMUNICATIONS

    E-Print Network [OSTI]

    Kranakis, Evangelos

    1 WIRELESS DATA COMMUNICATIONS Ce n'est pas possible!. . .This thing speaks! Dom Pedro II, 1876 topic of signaling that makes communication possible in all wireless systems. Nowadays, wireless Michel Barbeau and Evangelos Kranakis 2007 John Wiley & Sons, Ltd COPYRIGHTED MATERIAL #12;2 WIRELESS

  14. ARM: Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Maria Cadeddu

    2004-02-19

    Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

  15. A Low-Cost Hands-On Laboratory for an Undergraduate Microwave Course

    E-Print Network [OSTI]

    Hum, Sean Victor

    A Low-Cost Hands-On Laboratory for an Undergraduate Microwave Course S. V.Hum and M. Okoniewski@ieee.org Abstract A low-operating-cost microwave laboratory for undergraduate students is presented, which and measurement of microwave circuits. By training the students in the proper use of modern microwave test

  16. Sensitivity of satellite microwave and infrared observations to soil moisture at a global scale

    E-Print Network [OSTI]

    Aires, Filipe

    Sensitivity of satellite microwave and infrared observations to soil moisture at a global scale observations include passive microwave emissivities, active microwave scatterometer data, and infrared. For example, we show that the passive microwave polarization differences at 19 GHz and above are essentially

  17. Fiber Bragg gratings for microwave photonics Chao Wang and Jianping Yao*

    E-Print Network [OSTI]

    Yao, Jianping

    Fiber Bragg gratings for microwave photonics subsystems Chao Wang and Jianping Yao* Microwave, Ontario K1N 6N5, Canada *jpyao@eecs.uottawa.ca Abstract: Microwave photonics (MWP) is an emerging filed in which photonic technologies are employed to enable and enhance functionalities in microwave systems

  18. ARM: Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Maria Cadeddu

    Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

  19. Adaptive Communication Agent for Group Communication activities

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , limited energy resources), system execute adaptive mechanisms by monitoring the data flow. Also, the actor-wide collaborative environment, managing the adaptive communication is a challenging task. It implies the monitoring and executed without manual intervention. This research is applied to a Crisis Management System (CMS) within

  20. Portable microwave instrument for non-destructive evaluation of structural characteristics

    DOE Patents [OSTI]

    Bible, D.W.; Crutcher, R.I.; Sohns, C.W.; Maddox, S.R.

    1995-01-24

    A portable microwave instrument for evaluating characteristics of a structural member includes a source of microwave energy, a transmitter coupled to the source of microwave energy for transmitting a microwave signal at the structural member, and a receiver positioned on the same side of the structural member as the transmitter and being disposed to receive a microwave signal reflected by the structural member. A phase angle difference is determined between the transmitted microwave signal and the received microwave signal using a signal splitter and a balanced mixer. The difference in phase angle varies in accordance with differences in size, shape and locations of constituent materials within the structural member. 6 figures.

  1. Portable microwave instrument for non-destructive evaluation of structural characteristics

    DOE Patents [OSTI]

    Bible, Don W. (Clinton, TN); Crutcher, Richard I. (Knoxville, TN); Sohns, Carl W. (Oak Ridge, TN); Maddox, Stephen R. (Loudon, TN)

    1995-01-01

    A portable microwave instrument for evaluating characteristics of a structural member includes a source of microwave energy, a transmitter coupled to the source of microwave energy for transmitting a microwave signal at the structural member, and a receiver positioned on the same side of the structural member as the transmitter and being disposed to receive a microwave signal reflected by the structural member. A phase angle difference is determined between the transmitted microwave signal and the received microwave signal using a signal splitter and a balanced mixer. The difference in phase angle varies in accordance with differences in size, shape and locations of constituent materials within the structural member.

  2. IDENTIFYING THE RADIO BUBBLE NATURE OF THE MICROWAVE HAZE

    SciTech Connect (OSTI)

    Dobler, Gregory, E-mail: dobler@kitp.ucsb.edu [Kavli Institute for Theoretical Physics, University of California, Santa Barbara Kohn Hall, Santa Barbara, CA 93106 (United States)

    2012-11-20

    Using seven-year data from the Wilkinson Microwave Anisotropy Probe, I identify a sharp 'edge' in the microwave haze at high southern Galactic latitude (-55 Degree-Sign < b < -35 Degree-Sign ) that is spatially coincident with the southern edge of the 'Fermi haze/bubbles'. This finding proves conclusively that the edge in the gamma rays is real (and not a processing artifact), demonstrates explicitly that the microwave haze and the gamma-ray bubbles are indeed the same structure observed at multiple wavelengths, and strongly supports the interpretation of the microwave haze as a separate component of Galactic synchrotron (likely generated by a transient event) as opposed to a simple variation of the spectral index of disk synchrotron. In addition, combining these data sets allows for the first determination of the magnetic field within a radio bubble using microwaves and gamma rays by taking advantage of the fact that the inverse Compton gamma rays are primarily generated by scattering of cosmic microwave background photons at these latitudes, thus minimizing uncertainty in the target radiation field. Assuming uniform volume emissivity, I find that the magnetic field within the southern Galactic microwave/gamma-ray bubble is {approx}5 {mu}G above 6 kpc off of the Galactic plane.

  3. Galvanically split superconducting microwave resonators for introducing internal voltage bias

    SciTech Connect (OSTI)

    Graaf, S. E. de, E-mail: degraaf@chalmers.se; Davidovikj, D.; Adamyan, A.; Kubatkin, S. E.; Danilov, A. V. [Department of Microtechnology and Nanoscience, MC2, Chalmers University of Technology, SE-41296 Gothenburg (Sweden)

    2014-02-03

    We present the design and performance of high-Q superconducting niobium nitride microwave resonators intended for use in hybrid quantum systems, coupling spin degrees of freedom to the cavity mode, both magnetically and electrically. We demonstrate a solution that allows to introduce static electric fields in the resonator without compromising the microwave performance. Quality factors above 10{sup 5} remain unchanged in strong applied static electric fields above 10 MV/m and magnetic fields up to ?400?mT. By design, the configuration of the dc field matches that of the microwave field, especially advantageous for experiments on electrostatically controlled spin systems.

  4. Electrical detection of microwave assisted magnetization reversal by spin pumping

    SciTech Connect (OSTI)

    Rao, Siddharth; Subhra Mukherjee, Sankha; Elyasi, Mehrdad; Singh Bhatia, Charanjit; Yang, Hyunsoo, E-mail: eleyang@nus.edu.sg [Department of Electrical and Computer Engineering and NUSNNI, National University of Singapore, Singapore 117576 (Singapore)

    2014-03-24

    Microwave assisted magnetization reversal has been investigated in a bilayer system of Pt/ferromagnet by detecting a change in the polarity of the spin pumping signal. The reversal process is studied in two material systems, Pt/CoFeB and Pt/NiFe, for different aspect ratios. The onset of the switching behavior is indicated by a sharp transition in the spin pumping voltage. At a threshold value of the external field, the switching process changes from partial to full reversal with increasing microwave power. The proposed method provides a simple way to detect microwave assisted magnetization reversal.

  5. Electron beam collector for a microwave power tube

    DOE Patents [OSTI]

    Dandl, Raphael A. (Oak Ridge, TN)

    1980-01-01

    This invention relates to a cylindrical, electron beam collector that efficiently couples the microwave energy out of a high power microwave source while stopping the attendant electron beam. The interior end walls of the collector are a pair of facing parabolic mirrors and the microwave energy from an input horn is radiated between the two mirrors and reassembled at the entrance to the output waveguide where the transmitted mode is reconstructed. The mode transmission through the collector of the present invention has an efficiency of at least 94%.

  6. Method and apparatus for component separation using microwave energy

    DOE Patents [OSTI]

    Morrow, Marvin S. (Kingston, TN); Schechter, Donald E. (Ten Mile, TN); Calhoun, Jr., Clyde L. (Knoxville, TN)

    2001-04-03

    A method for separating and recovering components includes the steps of providing at least a first component bonded to a second component by a microwave absorbent adhesive bonding material at a bonding area to form an assembly, the bonding material disposed between the components. Microwave energy is directly and selectively applied to the assembly so that substantially only the bonding material absorbs the microwave energy until the bonding material is at a debonding state. A separation force is applied while the bonding material is at the debonding state to permit disengaging and recovering the components. In addition, an apparatus for practicing the method includes holders for the components.

  7. Microwave Processing of Simulated Advanced Nuclear Fuel Pellets

    SciTech Connect (OSTI)

    D.E. Clark; D.C. Folz

    2010-08-29

    Throughout the three-year project funded by the Department of Energy (DOE) and lead by Virginia Tech (VT), project tasks were modified by consensus to fit the changing needs of the DOE with respect to developing new inert matrix fuel processing techniques. The focus throughout the project was on the use of microwave energy to sinter fully stabilized zirconia pellets using microwave energy and to evaluate the effectiveness of techniques that were developed. Additionally, the research team was to propose fundamental concepts as to processing radioactive fuels based on the effectiveness of the microwave process in sintering the simulated matrix material.

  8. Surface code quantum communication

    E-Print Network [OSTI]

    Austin G. Fowler; David S. Wang; Charles D. Hill; Thaddeus D. Ladd; Rodney Van Meter; Lloyd C. L. Hollenberg

    2010-02-05

    Quantum communication typically involves a linear chain of repeater stations, each capable of reliable local quantum computation and connected to their nearest neighbors by unreliable communication links. The communication rate in existing protocols is low as two-way classical communication is used. We show that, if Bell pairs are generated between neighboring stations with a probability of heralded success greater than 0.65 and fidelity greater than 0.96, two-way classical communication can be entirely avoided and quantum information can be sent over arbitrary distances with arbitrarily low error at a rate limited only by the local gate speed. The number of qubits per repeater scales logarithmically with the communication distance. If the probability of heralded success is less than 0.65 and Bell pairs between neighboring stations with fidelity no less than 0.92 are generated only every T_B seconds, the logarithmic resource scaling remains and the communication rate through N links is proportional to 1/(T_B log^2 N).

  9. Microwave Instability Simulations for NSLS-II

    SciTech Connect (OSTI)

    Blednykh,A.; Krinsky, S.; Nash, B.; Yu, L.

    2009-05-04

    Potential-well distortion and the microwave instability in the NSLS-II storage ring are investigated. The longitudinal wakepotential is calculated as a sum of the contributions due to vacuum chamber components distributed around the ring. An approximation to the wakepotential for a 0.05-mm charge distribution length, much shorter than the 4.5-mm length of the unperturbed circulating bunch, is used as a pseudo-Green's function for beam dynamics simulations. Comparison of particle tracking simulations using the TRANFT code with the Haissinski solution shows good agreement below the instability threshold current. Above threshold two regimes are observed: (1) energy spread and bunch length are time-dependent (saw tooth behavior); (2) both are time-independent.

  10. Microwave guiding of electrons on a chip

    E-Print Network [OSTI]

    Johannes Hoffrogge; Roman Fröhlich; Mark A. Kasevich; Peter Hommelhoff

    2010-12-10

    Electrons travelling in free space have allowed to explore fundamental physics like the wave nature of matter, the Aharonov-Bohm and the Hanbury Brown-Twiss effect. Complementarily, the precise control over the external degrees of freedom of electrons has proven pivotal for wholly new types of experiments such as high precision measurements of the electron's mass and magnetic moment in Penning traps. Interestingly, the confinement of electrons in the purely electric field of an alternating quadrupole has rarely been considered. Recent advances in the development of planar chip-based ion traps suggest that this technology can be applied to enable entirely new experiments with electron beams guided in versatile potentials. Here we demonstrate the transverse confinement of a low energy electron beam in a linear quadrupole guide based on microstructured planar electrodes and driven at microwave frequencies. A new guided matter-wave system will result, with applications ranging from electron interferometry to novel non-invasive electron microscopy.

  11. 140 GHz pulsed fourier transform microwave spectrometer

    DOE Patents [OSTI]

    Kolbe, William F. (Oakland, CA); Leskovar, Branko (Moraga, CA)

    1987-01-01

    A high frequency energy pulsing system suitable for use in a pulsed microwave spectrometer (10), including means (11, 19) for generating a high frequency carrier signal, and means (12) for generating a low frequency modulating signal. The carrier signal is continuously fed to a modulator (20) and the modulating signal is fed through a pulse switch (23) to the modulator. When the pulse switch (23) is on, the modulator (20) will produce sideband signals above and below the carrier signal frequency. A frequency-responsive device (31) is tuned to one of the sideband signals and away from the carrier frequency so that the high frequency energization of the frequency-responsive device (31) is controlled by the pulse switch (23).

  12. 140 GHz pulsed Fourier transform microwave spectrometer

    DOE Patents [OSTI]

    Kolbe, W.F.; Leskovar, B.

    1987-10-27

    A high frequency energy pulsing system suitable for use in a pulsed microwave spectrometer, including means for generating a high frequency carrier signal, and means for generating a low frequency modulating signal is disclosed. The carrier signal is continuously fed to a modulator and the modulating signal is fed through a pulse switch to the modulator. When the pulse switch is on, the modulator will produce sideband signals above and below the carrier signal frequency. A frequency-responsive device is tuned to one of the sideband signals and away from the carrier frequency so that the high frequency energization of the frequency-responsive device is controlled by the pulse switch. 5 figs.

  13. Quantum Chaotic Scattering in Microwave Resonators

    E-Print Network [OSTI]

    B. Dietz; T. Friedrich; H. L. Harney; M. Miski-Oglu; A. Richter; F. Schaefer; H. A. Weidenmueller

    2010-02-24

    In a frequency range where a microwave resonator simulates a chaotic quantum billiard, we have measured moduli and phases of reflection and transmission amplitudes in the regimes of both isolated and of weakly overlapping resonances and for resonators with and without time-reversal invariance. Statistical measures for S-matrix fluctuations were determined from the data and compared with extant and/or newly derived theoretical results obtained from the random-matrix approach to quantum chaotic scattering. The latter contained a small number of fit parameters. The large data sets taken made it possible to test the theoretical expressions with unprecedented accuracy. The theory is confirmed by both, a goodness-of-fit-test and the agreement of predicted values for those statistical measures that were not used for the fits, with the data.

  14. Compact microwave ion source for industrial applications

    SciTech Connect (OSTI)

    Cho, Yong-Sub; Kim, Dae-Il; Kim, Han-Sung; Seol, Kyung-Tae; Kwon, Hyeok-Jung; Hong, In-Seok [Proton Engineering Frontier Project, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of)

    2012-02-15

    A 2.45 GHz microwave ion source for ion implanters has many good properties for industrial application, such as easy maintenance and long lifetime, and it should be compact for budget and space. But, it has a dc current supply for the solenoid and a rf generator for plasma generation. Usually, they are located on high voltage platform because they are electrically connected with beam extraction power supply. Using permanent magnet solenoid and multi-layer dc break, high voltage deck and high voltage isolation transformer can be eliminated, and the dose rate on targets can be controlled by pulse duty control with semiconductor high voltage switch. Because the beam optics does not change, beam transfer components, such as focusing elements and beam shutter, can be eliminated. It has shown the good performances in budget and space for industrial applications of ion beams.

  15. 2D microwave imaging reflectometer electronics

    SciTech Connect (OSTI)

    Spear, A. G.; Domier, C. W. Hu, X.; Muscatello, C. M.; Ren, X.; Luhmann, N. C.; Tobias, B. J.

    2014-11-15

    A 2D microwave imaging reflectometer system has been developed to visualize electron density fluctuations on the DIII-D tokamak. Simultaneously illuminated at four probe frequencies, large aperture optics image reflections from four density-dependent cutoff surfaces in the plasma over an extended region of the DIII-D plasma. Localized density fluctuations in the vicinity of the plasma cutoff surfaces modulate the plasma reflections, yielding a 2D image of electron density fluctuations. Details are presented of the receiver down conversion electronics that generate the in-phase (I) and quadrature (Q) reflectometer signals from which 2D density fluctuation data are obtained. Also presented are details on the control system and backplane used to manage the electronics as well as an introduction to the computer based control program.

  16. Microwave Plasma Chemical Vapor Deposition of Nano-Structured Sn/C Composite Thin-Film Anodes for Li-ion Batteries

    E-Print Network [OSTI]

    Marcinek, M.

    2008-01-01

    Microwave Plasma Chemical Vapor Deposition of Nano-tert-butoxide by a one step microwave plasma chemical vaporBatteries; Anode; Plasma; Microwave Corresponding author. E-

  17. Coherent soliton communication lines

    SciTech Connect (OSTI)

    Yushko, O. V. Redyuk, A. A.; Fedoruk, M. P.; Turitsyn, S. K.

    2014-11-15

    The data transmission in coherent fiber-optical communication lines using solitons with a variable phase is studied. It is shown that nonlinear coherent structures (solitons) can be applied for effective signal transmission over a long distance using amplitude and optical-phase keying of information. The optimum ratio of the pulse width to the bit slot at which the spectral efficiency (transmitted bits per second and hertz) is maximal is determined. It is shown that soliton fiber-optical communication lines can ensure data transmission at a higher spectral efficiency as compared to traditional communication lines and at a high signal-to-noise ratio.

  18. Efficient preparation of nanocrystalline anatase TiO2 and V/TiO2 thin layers using microwave drying and/or microwave calcination technique

    E-Print Network [OSTI]

    Cirkva, Vladimir

    in microwave field were done in the same manner, by using an IR pyrometer in the microwave oven and monitoring many important applications, including, among others, dye-sensitized solar cells [1] or photocatalytic

  19. Scholarly communication and bibliometrics: I. Scholarly communication model

    E-Print Network [OSTI]

    Menczer, Filippo

    for examining communication among scholars in a field through their scholarly publications. As has been advanced1 Scholarly communication and bibliometrics: I. Scholarly communication model Literature Review a literature review that has two parts. Her is talking about the first part: scholarly communication model

  20. Hazard Communication Site Specific Information Sheet Hazard Communication Program (HCP)

    E-Print Network [OSTI]

    Slatton, Clint

    Hazard Communication Site Specific Information Sheet Hazard Communication Program (HCP) Site Specific Information The responsible party for a unit/area should complete this section to make the Hazard Communication Program site specific. The responsible party will ensure that the Hazard Communication Program

  1. On communication complexity and universal compression

    E-Print Network [OSTI]

    Dhulipala, Anand

    2007-01-01

    in Electrical Engineering (Communication Theory & Systems)in Electrical Engineering (Communication Theory & Systems)

  2. Analytical scanning evanescent microwave microscope and control stage

    DOE Patents [OSTI]

    Xiang, Xiao-Dong (Danville, CA); Gao, Chen (Anhui, CN); Duewer, Fred (Albany, CA); Yang, Hai Tao (Albany, CA); Lu, Yalin (Chelmsford, MA)

    2009-06-23

    A scanning evanescent microwave microscope (SEMM) that uses near-field evanescent electromagnetic waves to probe sample properties is disclosed. The SEMM is capable of high resolution imaging and quantitative measurements of the electrical properties of the sample. The SEMM has the ability to map dielectric constant, loss tangent, conductivity, electrical impedance, and other electrical parameters of materials. Such properties are then used to provide distance control over a wide range, from to microns to nanometers, over dielectric and conductive samples for a scanned evanescent microwave probe, which enable quantitative non-contact and submicron spatial resolution topographic and electrical impedance profiling of dielectric, nonlinear dielectric and conductive materials. The invention also allows quantitative estimation of microwave impedance using signals obtained by the scanned evanescent microwave probe and quasistatic approximation modeling. The SEMM can be used to measure electrical properties of both dielectric and electrically conducting materials.

  3. Microwave-induced thermoacoustic tomography: reconstruction by synthetic aperture 

    E-Print Network [OSTI]

    Feng, Dazi

    2001-01-01

    We have applied the synthetic-aperture method to linear-scanning microwave-induced thermoacoustic tomography in biological tissues. A non-focused ultrasonic transducer was used to receive thermoacoustic signals, to which the delay-and-sum algorithm...

  4. Development of microreactor setups for microwave organic synthesis

    E-Print Network [OSTI]

    Lee, Wen-Hsuan, Ph. D. Massachusetts Institute of Technology

    2015-01-01

    The main contribution of this work is the understanding of microwave heating and the microreactor design challenges involved through both chemical experiments and computational models. The original goal of this research ...

  5. Method for curing polymers using variable-frequency microwave heating

    DOE Patents [OSTI]

    Lauf, R.J.; Bible, D.W.; Paulauskas, F.L.

    1998-02-24

    A method for curing polymers incorporating a variable frequency microwave furnace system designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity is disclosed. By varying the frequency of the microwave signal, non-uniformities within the cavity are minimized, thereby achieving a more uniform cure throughout the workpiece. A directional coupler is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. The furnace cavity may be adapted to be used to cure materials defining a continuous sheet or which require compressive forces during curing. 15 figs.

  6. Method for curing polymers using variable-frequency microwave heating

    DOE Patents [OSTI]

    Lauf, Robert J. (Oak Ridge, TN); Bible, Don W. (Clinton, TN); Paulauskas, Felix L. (Oak Ridge, TN)

    1998-01-01

    A method for curing polymers (11) incorporating a variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34). By varying the frequency of the microwave signal, non-uniformities within the cavity (34) are minimized, thereby achieving a more uniform cure throughout the workpiece (36). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. The furnace cavity (34) may be adapted to be used to cure materials defining a continuous sheet or which require compressive forces during curing.

  7. On-chip superconducting microwave circulator from synthetic rotation

    E-Print Network [OSTI]

    Joseph Kerckhoff; Kevin Lalumière; Benjamin J. Chapman; Alexandre Blais; K. W. Lehnert

    2015-02-21

    We analyze the design of a potential replacement technology for the commercial ferrite circulators that are ubiquitous in contemporary quantum superconducting microwave experiments. The lossless, lumped element design is capable of being integrated on chip with other superconducting microwave devices, thus circumventing the many performance-limiting aspects of ferrite circulators. The design is based on the dynamic modulation of DC superconducting microwave quantum interference devices (SQUIDs) that function as nearly linear, tunable inductors. The connection to familiar ferrite-based circulators is a simple frame boost in the internal dynamics' equation of motion. In addition to the general, schematic analysis, we also give an overview of many considerations necessary to achieve a practical design with a tunable center frequency in the 4-8 GHz frequency band, a bandwidth of 240 MHz, reflections at the -20 dB level, and a maximum signal power of approximately order 100 microwave photons per inverse bandwidth.

  8. Investigation of Nanoparticles for Use in Microwave Systems in Biomedicine 

    E-Print Network [OSTI]

    Taghavi, Houra

    2013-04-30

    . These nanoparticles could enable the use of a hybrid microwave/acoustic technique known as thermoacoustic tomography. Here, quantitative measurements of the heat generation in super paramagnetic iron oxide nanoparticle (SPIONs), gold nanoparticles (AuNPs), and gold...

  9. Analytical scanning evanescent microwave microscope and control stage

    DOE Patents [OSTI]

    Xiang, Xiao-Dong; Gao, Chen; Duewer, Fred; Yang, Hai Tao; Lu, Yalin

    2013-01-22

    A scanning evanescent microwave microscope (SEMM) that uses near-field evanescent electromagnetic waves to probe sample properties is disclosed. The SEMM is capable of high resolution imaging and quantitative measurements of the electrical properties of the sample. The SEMM has the ability to map dielectric constant, loss tangent, conductivity, electrical impedance, and other electrical parameters of materials. Such properties are then used to provide distance control over a wide range, from to microns to nanometers, over dielectric and conductive samples for a scanned evanescent microwave probe, which enable quantitative non-contact and submicron spatial resolution topographic and electrical impedance profiling of dielectric, nonlinear dielectric and conductive materials. The invention also allows quantitative estimation of microwave impedance using signals obtained by the scanned evanescent microwave probe and quasistatic approximation modeling. The SEMM can be used to measure electrical properties of both dielectric and electrically conducting materials.

  10. Communications 101 | Jefferson Lab

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

    Communications 101 August 18, 2011 Nuclear Physics is a big science. In fact, if you are a student of 20th Century science history, nuclear physics was the first big science. We...

  11. Scalable Communication Trace Compression

    SciTech Connect (OSTI)

    Krishnamoorthy, Sriram; Agarwal, Khushbu

    2010-05-17

    Characterizing the communication behavior of parallel programs through tracing can help understand an application’s characteristics, model its performance, and predict behavior on future systems. However, lossless communication traces can get prohibitively large, causing programmers to resort to variety of other techniques. In this paper, we present a novel approach to lossless communication trace compression. We augment the sequitur compression algorithm to employ it in communication trace compression of parallel programs. We present optimizations to reduce the memory overhead, reduce size of the trace files generated, and enable compression across multiple processes in a parallel program. The evaluation shows improved compression and reduced overhead over other approaches, with up to 3 orders of magnitude improvement for the NAS MG benchmark. We also observe that, unlike existing schemes, the trace files sizes and the memory overhead incurred are less sensitive to, if not independent of, the problem size for the NAS benchmarks.

  12. 1694 IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 23, NO. 22, NOVEMBER 15, 2011 A Continuously Tunable Microwave Fractional

    E-Print Network [OSTI]

    Yao, Jianping

    Microwave Fractional Hilbert Transformer Based on a Photonic Microwave Delay-Line Filter Using--A continuously tunable microwave fractional Hilbert transformer (FHT) implemented based on a photonic microwave the pass- band is achieved. Index Terms--Hilbert transform, microwave photonics, optical signal processing

  13. On-Chip Microwave Fock States and Quantum Homodyne Measurements

    E-Print Network [OSTI]

    M. Mariantoni; M. J. Storcz; F. K. Wilhelm; W. D. Oliver; A. Emmert; A. Marx; R. Gross; H. Christ; E. Solano

    2006-02-28

    We propose a method to couple metastable flux-based qubits to superconductive resonators based on a quantum-optical Raman excitation scheme that allows for the deterministic generation of stationary and propagating microwave Fock states and other weak quantum fields. Moreover, we introduce a suitable microwave quantum homodyne technique, with no optical counterpart, that enables the measurement of relevant field observables, even in the presence of noisy amplification devices.

  14. Plasma actuator electron density measurement using microwave perturbation method

    SciTech Connect (OSTI)

    Mirhosseini, Farid; Colpitts, Bruce [Electrical and Computer Engineering, University of New Brunswick, Fredericton, New Brunswick E3B 5A3 (Canada)

    2014-07-21

    A cylindrical dielectric barrier discharge plasma under five different pressures is generated in an evacuated glass tube. This plasma volume is located at the center of a rectangular copper waveguide cavity, where the electric field is maximum for the first mode and the magnetic field is very close to zero. The microwave perturbation method is used to measure electron density and plasma frequency for these five pressures. Simulations by a commercial microwave simulator are comparable to the experimental results.

  15. Microwave mode shifting antenna system for regenerating particulate filters

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Kirby, Kevin W [Calabasas Hills, CA; Phelps, Amanda [Malibu, CA; Gregoire, Daniel J [Thousand Oaks, CA

    2011-04-26

    A regeneration system comprises a particulate matter (PM) filter including a microwave energy absorbing surface, and an antenna system comprising N antennas and an antenna driver module that sequentially drives the antenna system in a plurality of transverse modes of the antenna system to heat selected portions of the microwave absorbing surface to regenerate the PM filter, where N is an integer greater than one. The transverse modes may include transverse electric (TE) and/or transverse magnetic (TM) modes.

  16. Two-port microwave calibration at millikelvin temperatures

    SciTech Connect (OSTI)

    Ranzani, Leonardo; Spietz, Lafe; Aumentado, Jose [National Institute of Standards and Technology, Boulder, Colorado 80305 (United States); Popovic, Zoya [University of Colorado at Boulder, Boulder, Colorado 80309 (United States)

    2013-03-15

    In this work we introduce a system for 2-port microwave calibration at millikelvin temperatures operating at the coldest stage of a dilution refrigerator by use of an adapted thru-reflect-line algorithm. We show that this can be an effective tool for characterizing common 50 {Omega} microwave components with better than 0.1 dB accuracy at temperatures that are relevant to many current experiments in superconducting quantum information.

  17. Microwaves and Chemistry: The Catalysis of an Exciting Marriage 

    E-Print Network [OSTI]

    Wan, J.

    1992-01-01

    hydrocarbon oxidations to environmental technology will be illustrated. BACKGROUND The concept of using microwaves as an energy source for chemical reactions has only recently been appreciated. Part of the reason for this has been the bias of chemists... our first major success in cracking methane to ethylene and hydrogen [1,2], lhe destruction of chlorinated hydrocarbons [3,4], the hydrodesulfurization of hydrocracked pitch [5], and the microwave treatment of some Alberta oil sands and bitumens...

  18. Communication and Cancer Suggestions for Navigating Relationships

    E-Print Network [OSTI]

    Brent, Roger

    Communication and Cancer Suggestions for Navigating Relationships During and After Cancer Moving · Increased attention to the effect of communication · Increased awareness of communication styles · Introduction to theories about communication · Consider communication patterns in relationships · Resources

  19. Near-Field Based Communication and Electrical Systems

    E-Print Network [OSTI]

    Azad, Umar

    2013-01-01

    of developing microwave-powered aircraft and solar-powered2.2. Fig 2.2 Microwave-powered helicopter and solar-poweredMankins, “Space solar power programs and microwave wireless

  20. Modeling and design of compact microwave components and systems for wireless communications and power transmission 

    E-Print Network [OSTI]

    Zepeda, Paola

    2004-09-30

    , a multilayer folded line filter is designed at 5.8GHz and compared to planar ring filters. Improved measured bandwidth from 2GHz to 7.5GHz and IL of 1.2dB are obtained with approximately half the size of a planar ring resonator. Thirdly, a simplified...

  1. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 61, NO. 12, DECEMBER 2013 4275 Ultrahigh-Resolution Photonic-Assisted Microwave

    E-Print Network [OSTI]

    Yao, Jianping

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 61, NO. 12, DECEMBER 2013 4275 Ultrahigh-Resolution Photonic-Assisted Microwave Frequency Identification Based on Temporal Channelization Chao Wang, Member, IEEE, and Jianping Yao, Fellow, IEEE Abstract--Real-time ultrahigh-resolution microwave frequency

  2. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 2, FEBRUARY 2006 763 Photonic Generation of Microwave Signal Using a

    E-Print Network [OSTI]

    Yao, Jianping

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 2, FEBRUARY 2006 763 Photonic Generation of Microwave Signal Using a Rational Harmonic Mode-Locked Fiber Ring Laser Zhichao Deng and Jianping Yao, Senior Member, IEEE Abstract--A novel method for microwave signal generation using a rational

  3. MFC Communications Infrastructure Study

    SciTech Connect (OSTI)

    Michael Cannon; Terry Barney; Gary Cook; George Danklefsen, Jr.; Paul Fairbourn; Susan Gihring; Lisa Stearns

    2012-01-01

    Unprecedented growth of required telecommunications services and telecommunications applications change the way the INL does business today. High speed connectivity compiled with a high demand for telephony and network services requires a robust communications infrastructure.   The current state of the MFC communication infrastructure limits growth opportunities of current and future communication infrastructure services. This limitation is largely due to equipment capacity issues, aging cabling infrastructure (external/internal fiber and copper cable) and inadequate space for telecommunication equipment. While some communication infrastructure improvements have been implemented over time projects, it has been completed without a clear overall plan and technology standard.   This document identifies critical deficiencies with the current state of the communication infrastructure in operation at the MFC facilities and provides an analysis to identify needs and deficiencies to be addressed in order to achieve target architectural standards as defined in STD-170. The intent of STD-170 is to provide a robust, flexible, long-term solution to make communications capabilities align with the INL mission and fit the various programmatic growth and expansion needs.

  4. Communication in Home Area Networks

    E-Print Network [OSTI]

    Wang, Yubo

    2012-01-01

    Wave Protocol Overview”, 2007 [24] General Electric Company, “Energy Efficiency Comparisons of Wireless Communication Technology

  5. Dopant activation in ion implanted silicon by microwave annealing

    SciTech Connect (OSTI)

    Alford, T. L.; Thompson, D. C.; Mayer, J. W. [School of Materials, Arizona State University, Tempe, Arizona 85287 (United States); Theodore, N. David [Silicon Technology Solutions, Freescale Semiconductor Inc., 2100 East Elliot Rd., Tempe, Arizona 85284 (United States)

    2009-12-01

    Microwaves are used as a processing alternative for the electrical activation of ion implanted dopants and the repair of ion implant damage within silicon. Rutherford backscattering spectra demonstrate that microwave heating reduces the damage resulting from ion implantation of boron or arsenic into silicon. Cross-section transmission electron microscopy and selective area electron diffraction patterns demonstrate that the silicon lattice regains nearly all of its crystallinity after microwave processing of arsenic implanted silicon. Sheet resistance readings indicate the time required for boron or arsenic electrical activation within implanted silicon. Hall measurements demonstrate the extent of dopant activation after microwave heating of implanted silicon. Physical and electrical characterization determined that the mechanism of recrystallization in arsenic implanted silicon is solid phase epitaxial regrowth. The boron implanted silicon samples did not result in enough lattice damage to amorphize the silicon lattice and resulted in low boron activation during microwave annealing even though recrystallization of the Si lattice damage did take place. Despite low boron activation levels, the level of boron activation in this work was higher than that expected from traditional annealing techniques. The kinetics of microwave heating and its effects on implanted Si are also discussed.

  6. Stable microwave coaxial cavity plasma system at atmospheric pressure

    SciTech Connect (OSTI)

    Song, H. [Department of Electrical and Computer Engineering, University of Colorado, Colorado Springs, Colorado 80918 (United States); Hong, J. M.; Lee, K. H. [Plasma Systems and Materials (PSM) Inc., Sungnam-Si, Gyonggi-Do 190-1 (Korea, Republic of); Choi, J. J. [Department of Radio Science and Engineering, Kwangwoon University, Nowon-Gu, Seoul 447-1 (Korea, Republic of)

    2008-05-15

    We present a systematic study of the development of a novel atmospheric microwave plasma system for material processing in the pressure range up to 760 torr and the microwave input power up to 6 kW. Atmospheric microwave plasma was reliably produced and sustained by using a cylindrical resonator with the TM{sub 011} cavity mode. The applicator and the microwave cavity, which is a cylindrical resonator, are carefully designed and optimized with the time dependent finite element Maxwell equation solver. The azimuthal apertures are placed at the maximum magnetic field positions between the cavity and the applicator to maximize the coupling efficiency into the microwave plasma at a resonant frequency of 2.45 GHz. The system consists of a magnetron power supply, a circulator, a directional coupler, a three-stub tuner, a dummy load, a coaxial cavity, and a central cavity. Design and construction of the resonant structures and diagnostics of atmospheric plasma using optical experiments are discussed in various ranges of pressure and microwave input power for different types of gases.

  7. Development of A Microwave Assisted Particulate Filter Regeneration System

    SciTech Connect (OSTI)

    Popuri, Sriram

    2001-08-05

    The need for active regeneration of diesel particulate filters and the advantages of microwave assisted regeneration are discussed. The current study has multiple objectives, which include developing a microwave assisted particulate filter regeneration system for future generation light-duty diesel applications, including PNGV type applications. A variable power 2.0 kW microwave system and a tuned waveguide were employed. Cavity geometry is being optimized with the aid of computational modeling and temperature measurements during microwave heating. A wall-flow ceramic-fiber filter with superior thermal shock resistance, high filtration efficiency, and high soot capacity was used. The microwave assisted particulate filter regeneration system has operated for more than 100 hours in an engine test-cell with a 5.9-liter diesel engine with automated split exhaust flow and by-pass flow capabilities. Filter regeneration was demonstrated using soot loads up to 10 g/liter and engine exhaust at idling flow rates as the oxygen source. A parametric study to determine the optimal combination of soot loading, oxidant flow rate, microwave power and heating time is underway. Preliminary experimental results are reported.

  8. Method and device for microwave sintering large ceramic articles

    DOE Patents [OSTI]

    Kimrey, Jr., Harold D. (Knoxville, TN)

    1990-01-01

    A microwave sintering system and method are provided for extremely uniform sintering of large and/or irregular shaped ceramic articles at microwave frequencies of at least 28 GHz in the hundreds of kilowatts power range in an untuned cavity. A 28 GHz, 200 kw gyrotron with variable power output is used as the microwave source connected to an untuned microwave cavity formed of an electrically conductive housing through an overmoded waveguide arrangement which acts in conjunction with a mode promoter within the cavity to achieve unexpected field uniformity. The part to be sintered is placed in the cavity and supported on a removable high temperature table in a central location within the cavity. The part is surrounded by a microwave transparent bulk insulating material to reduce thermal heat loss at the part surfaces and maintain more uniform temperature. The cavity may be operated at a high vacuum to aid in preventing arcing. The system allows controlled increased heating rates of greater than 200.degree. C./min to provide rapid heating of a ceramic part to a selected sintering temperature where it is maintained by regulating the microwave power applied to the part. As a result of rapid heating, the extent of non-isothermal processes such as segregation of impurities to the grain boundaries are minimized and exaggerated grain growth is reduced, thereby strengthening the mechanical properties of the ceramic part being sintered.

  9. Uniform bulk material processing using multimode microwave radiation

    DOE Patents [OSTI]

    Varma, Ravi (Los Alamos, NM); Vaughn, Worth E. (Madison, WI)

    2000-01-01

    An apparatus for generating uniform heating in material contained in a cylindrical vessel is described. TE.sub.10 -mode microwave radiation is coupled into a cylindrical microwave transition such that microwave radiation having TE.sub.11 -, TE.sub.01 - and TM.sub.01 -cylindrical modes is excited therein. By adjusting the intensities of these modes, substantially uniform heating of materials contained in a cylindrical drum which is coupled to the microwave transition through a rotatable choke can be achieved. The use of a poor microwave absorbing insulating cylindrical insert, such as aluminum oxide, for separating the material in the container from the container walls and for providing a volume through which air is circulated is expected to maintain the container walls at room temperature. The use of layer of highly microwave absorbing material, such as SiC, inside of the insulating insert and facing the material to be heated is calculated to improve the heating pattern of the present apparatus.

  10. Communication Optimization for Customizable Domain-Specific Computing

    E-Print Network [OSTI]

    Xiao, Bingjun

    2015-01-01

    Optimization . . . . . . . . . . . . . . . . . . . . .Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . .176 Communication Optimization

  11. T-junction waveguide-based combining high power microwave beams

    SciTech Connect (OSTI)

    Zhang Qiang; Yuan Chengwei; Liu Lie [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2011-08-15

    Waveguide-based combining microwave beams is an attractive technique for enhancing the output capacities of narrow-band high power microwave devices. A specific T-junction combiner is designed for combining the X/X band microwave beams, and the detailed combining method and experimental results are presented. In the experiments, two microwave sources which can generate gigawatt level microwaves are driven by a single accelerator simultaneously, and their operation frequencies are 9.41 and 9.60 GHz, respectively. The two microwave beams with durations of about 35 ns have been successfully combined, and no breakdown phenomenon occurs.

  12. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 7, 2008 247 Numerical Study of Microwave Scattering in Breast

    E-Print Network [OSTI]

    Hagness, Susan C.

    microwave sig- nals. In microwave-induced thermoacoustic approaches [5], [6], microwave signals the pressure waves generated by the consequent tissue ex- pansion. All of these techniques attempt to exploit

  13. Communications And Positioning Systems In The Motor Carrier Industry

    E-Print Network [OSTI]

    Scapinakis, Dimitris A.; Garrison, William L.

    1991-01-01

    s 5 MOBILE COMMUNICATIONS SYSTEMS . . . . . . . . .Communications systems used by fleets of allCommunications Systems . . . . . . . . . . . . . . . . . . . . . . .

  14. Physical principles of microwave assisted magnetic recording

    SciTech Connect (OSTI)

    Rivkin, Kirill; Benakli, Mourad; Yin, Huaqing [Seagate Technology, Edina, Minnesota 55435 (United States); Tabat, Ned [Semaphore Scientific Inc., Chanhassen, Minnesota 55317 (United States)

    2014-06-07

    While the basic physics of Microwave Assisted Magnetization Reversal (MAMR) phenomenon is well established both theoretically and experimentally, its application in a practical magnetic recording environment was so far studied primarily with the help of micromagnetic recording models. In this work, we instead attempt to use analytical formulation and simple numerical models to understand the main challenges as well as benefits that are associated with such a system. It appears that the main difference between the previously introduced theory [G. Bertotti et al., Phys. Rev. Lett. 86, 724 (2001); K. Rivkin et al., Appl. Phys. Lett. 92, 153104 (2008); S. Okamoto et al., J. Appl. Phys. 107, 123914 (2010).] and recording environment is that both the RF and DC magnetic fields are applied at a substantial angle to the anisotropy axis. While the associated symmetry breaking prevents one from describing the reversal process explicitly, it is possible to approximate the solutions well enough to satisfactorily match numerical models both in the case of wire and Spin Torque Oscillator generated RF fields. This approach allows for physical explanation of various effects associated with MAMR such as high gradient of writeable anisotropy and reduction of track width, and offers a clear guidance regarding future optimization of MAMR recording.

  15. Foreground contributions to the Cosmic Microwave Background

    E-Print Network [OSTI]

    Tadeusz Wibig; Arnold W. Wolfendale

    2005-06-21

    A detailed search has been made for evidence of foreground contributions to the Cosmic Microwave Background (CMB) WMAP, such foregrounds being related to our Galaxy. We find remarkable results. On the largest angular scales we find significant differences between the power in the fluctuations for positive and negative Galactic latitudes and between the four Galactic Quadrants. There are also differences between the power spectrum at latitudes within 10 deg of the Plane and at higher latitudes. The `slope' of the power spectrum has similar variations. In an effort to find the origin of these Galactic-style effects we have examined the evidence from Galactic gamma rays, specifically from the EGRET instrument. A correlation is found between gamma ray intensities and the CMB and other cosmic ray indicators. Most of the large scale Galactic asymmetries (eg north, south difference and Quadrant variations) have analogues in cosmic ray asymmetries and also in some other Galactic properties, such as the column density of gas. Thus, it is possible to hypothesise on direct cosmic ray-induced contributions, although it may be that cosmic rays are simply the indicators of Galactic `conditions' which are influencing the residual CMB fluctuations. Irrespective of the actual cause of the correlations we have endeavoured to extrapolate to the situation where the residual foreground is minimised. The effect on the usually-derived cosmological properties - universal matter content, ionization, the tensor contribution, tilt and curvature - is briefly examined.

  16. Innovating science communication

    E-Print Network [OSTI]

    Goldfarb, Steven; The ATLAS collaboration; Shaw, Kate

    2015-01-01

    The ATLAS Education & Outreach project has, over the years, developed a strong reputation for supporting innovation. Animated event displays, musical CDs, 3d movies, 3-storey murals, photo books, data sonifications, multi-media art installations, pub slams, masterclasses, documentaries, pop-up books, LEGO® models, and virtual visits are among the many diverse methods being exploited to communicate to the world the goals and accomplishments of the ATLAS Experiment at CERN. This variety of creativity and innovation does not pop out of a vacuum. It requires underlying motivation by the collaboration to communicate with the public; freedom and encouragement to do so in a creative manner; and a support structure for developing, implementing and promoting these activities. The ATLAS Outreach project has built this support structure on a well-defined communication plan, high-quality content, and effective delivery platforms. Most importantly, implementation of the program has been based on the effective engagem...

  17. Design, characterization, and modeling of GaN based HFETs for millimeter wave and microwave power amplifier applications

    E-Print Network [OSTI]

    Conway, Adam M.

    2006-01-01

    for Microwave and Millimeter-Wave Power Applications,” IEDM.power microwave and millimeter wave power amplifiers. Whilemicrowave and millimeter- wave power amplifier applications.

  18. Demonstration of Communication using Neutrinos

    E-Print Network [OSTI]

    D. D. Stancil; P. Adamson; M. Alania; L. Aliaga; M. Andrews; C. Araujo Del Castillo; L. Bagby; J. L. Bazo Alba; A. Bodek; D. Boehnlein; R. Bradford; W. K. Brooks; H. Budd; A. Butkevich; D. A. M. Caicedo; D. P. Capista; C. M. Castromonte; A. Chamorro; E. Charlton; M. E. Christy; J. Chvojka; P. D. Conrow; I. Danko; M. Day; J. Devan; J. M. Downey; S. A. Dytman; B. Eberly; J. R. Fein; J. Felix; L. Fields; G. A. Fiorentini; A. M. Gago; H. Gallagher; R. Gran; J. Grange; J. Griffin; T. Griffin; E. Hahn; D. A. Harris; A. Higuera; J. A. Hobbs; C. M. Hoffman; B. L. Hughes; K. Hurtado; A. Judd; T. Kafka; K. Kephart; J. Kilmer; M. Kordosky; S. A. Kulagin; V. A. Kuznetsov; M. Lanari; T. Le; H. Lee; L. Loiacono; G. Maggi; E. Maher; S. Manly; W. A. Mann; C. M. Marshall; K. S. McFarland; A. Mislivec; A. M. McGowan; J. G. Morfin; H. da Motta; J. Mousseau; J. K. Nelson; J. A. Niemiec-Gielata; N. Ochoa; B. Osmanov; J. Osta; J. L. Palomino; J. S. Paradis; V. Paolone; J. Park; C. Pena; G. Perdue; C. E. Perez Lara; A. M. Peterman; A. Pla-Dalmau; B. Pollock; F. Prokoshin; R. D. Ransome; H. Ray; M. Reyhan; P. Rubinov; D. Ruggiero; O. S. Sands; H. Schellman; D. W. Schmitz; E. C. Schulte; C. Simon; C. J. Solano Salinas; R. Stefanski; R. G. Stevens; N. Tagg; V. Takhistov; B. G. Tice; R. N. Tilden; J. P. Velasquez; I. Vergalosova; J. Voirin; J. Walding; B. J. Walker; T. Walton; J. Wolcott; T. P. Wytock; G. Zavala; D. Zhang; L. Y. Zhu; B. P. Ziemer

    2012-04-09

    Beams of neutrinos have been proposed as a vehicle for communications under unusual circumstances, such as direct point-to-point global communication, communication with submarines, secure communications and interstellar communication. We report on the performance of a low-rate communications link established using the NuMI beam line and the MINERvA detector at Fermilab. The link achieved a decoded data rate of 0.1 bits/sec with a bit error rate of 1% over a distance of 1.035 km, including 240 m of earth.

  19. Federal Communications Commission FCC 02-48 Federal Communications Commission

    E-Print Network [OSTI]

    Federal Communications Commission FCC 02-48 Before the Federal Communications Commission Washington-Wideband Transmission Systems ) ) ) ) ) ) ET Docket 98-153 FIRST REPORT AND ORDER Adopted: February 14, 2002 Released. Imaging Systems

  20. Microwave Power Beaming Infrastructure for Manned Lightcraft Operations: Part 2

    SciTech Connect (OSTI)

    Myrabo, Leik N. [Lightcraft Technologies, Inc., Bennington, VT (United States)

    2008-04-28

    In the past {approx}7 years, microwave gyrotron technology has rapidly evolved to a critical threshold wherein ultra-energetic space launch missions based on beamed energy propulsion (BEP) now appear eminently feasible. Over the next 20 years, hundred megawatt-class microwave power-beaming stations could be prototyped on high deserts and 3- to 4 km mountain peaks before migrating into low Earth orbit, along with their passive microwave relay satellites. Described herein is a 20 GW rechargeable nuclear power satellite and microwave power-beaming infrastructure designed for manned space launch operations in the year 2025. The technological readiness of 2500 GJ superconducting magnetic energy storage 'batteries', 433-m ultralight space structures, 100 MW liquid droplet radiators, 1-6+ MW gyrotron sources, and mega-scale arrays (e.g., 3000 phase-locked units) is addressed. Microwave BEP is 'breakthrough' technology with the very real potential to radically reduce space access costs by factors of 100 to 1000 in the forseeable future.

  1. Receiver designs for multiuser underwater acoustic communications

    E-Print Network [OSTI]

    Cho, Steve E.

    2012-01-01

    M. S. in Electrical Engineering (Communication Theory andPh. D. in Electrical Engineering (Communication Theory andin Electrical Engineering (Communication Theory and Systems)

  2. Office of Communication - Talk to Fermilab

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

    Home | Office of Communication Staff | Speakers' Bureau | Available Materials Links | Talk to Fermilab | Internal Communication Forum Internal Communication Forum Name: Email:...

  3. Ultraviolet Communication Network Modeling and Analysis

    E-Print Network [OSTI]

    Wang, Leijie

    2011-01-01

    and NLOS UV Communication System Model . . . . . . 3.2.15.3 UV Communication Link and TransceiverUV NLOS communication system model in coplanar

  4. Observed Communication in Distressed Couples' Interactions

    E-Print Network [OSTI]

    Baucom, Katherine Jane Williams

    2012-01-01

    A. (2011). Observed communication in couples two years afterA. (2011). Observed communication in couples two years afterA. (1996). The Communication Patterns Questionnaire: The

  5. Communication vs. Performance in Source Localization

    E-Print Network [OSTI]

    Bandari, Roja; Pottie, Gregory

    2007-01-01

    localization. Cost of Wireless Communication Energy can be aConsiderable energy is used in wireless communication In aamount of energy is consumed through wireless communication.

  6. Development of a Permanent-Magnet Microwave Ion Source for a Sealed-Tube Neutron Generator

    E-Print Network [OSTI]

    Waldmann, Ole

    2011-01-01

    Permanent-Magnet Mi- crowave Ion Source for a Compact High-Yield Neutron Generator,Permanent-Magnet Microwave Ion Source for a Sealed-Tube Neutron Generatorgenerator. Microwave ion sources, however, A permanent-magnet

  7. INEL 6069, Sandra L. Cruz Pol 4/6/14 Microwave Interactions with Atmospheric

    E-Print Network [OSTI]

    Cruz-Pol, Sandra L.

    .93 Ni O2 Ar Other components: Carbon dioxide (CO2), Neon (Ne), Helium (He), Methane (CH4), Krypton (Kr Microwave Interactions with the Atmosphere Dr. Sandra Cruz Pol Microwave Remote Sensing INEL 6669 Dept

  8. Resonant Microwave Heating of a Gun Plasma in a Toroidal Octupo1e

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    Resonant Microwave Heating of a Gun Plasma in a Toroidal Octupo1e by J. C. Sprott and Glenn Kuswa a conical pinch gun . After 5 0 0 11 sec, when the gun plasma has filled the toroid, the microwaves

  9. Reduction of Metal Oxides by Microwave Heating of Multi-walled...

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

    Reduction of Metal Oxides by Microwave Heating of Multi-walled Carbon Nanotubes Microwave heating of a metal oxide in the presence of multi-walled carbon nanotubes may result in...

  10. Microwave-assisted pyrolysis of HDPE using an activated carbon bed

    E-Print Network [OSTI]

    Russell, Alan Donald

    2013-04-16

    away” into a landfill after a single use. Microwave-assisted pyrolysis is a recycling technique that allows the recovery of chemical value from plastic waste by breaking down polymers into useful smaller hydrocarbons using microwave heat in the absence...

  11. Catalytic microwave pyrolysis of waste engine oil using metallic pyrolysis char

    E-Print Network [OSTI]

    Lam, Su Shiung; Liew, Rock Keey; Cheng, Chin Kui; Chase, Howard A.

    2015-04-09

    Microwave pyrolysis was performed on waste engine oil pre-mixed with different amounts of metallic-char catalyst produced previously from a similar microwave pyrolysis process. The metallic-char catalyst was first prepared by pretreatment...

  12. Techniques for Probing the Processes by Which Microwaves Interact with Chemical and Biological Systems 

    E-Print Network [OSTI]

    Kay, Philip E

    2007-01-01

    Microwave heating is a relatively mature field and is theoretically well understood. However, recently there has been debate as to whether microwaves can interact with chemical and biological systems by means other than ...

  13. Attosecond timing jitter modelocked lasers and ultralow phase noise photonic microwave oscillators

    E-Print Network [OSTI]

    Li, Duo, Ph. D. Massachusetts Institute of Technology

    2014-01-01

    Photonic microwave oscillator based on optical frequency comb and ultrastable optical reference cavity represents the state-of-the-art solution to generate X-band microwaves of ultralow phase noise. Such high-quality ...

  14. Chapter 1 -Hazard Communication Hazard Communication and Training Act

    E-Print Network [OSTI]

    and Training Act require employers to inform workers about hazardous chemicals in their work areas13 Chapter 1 - Hazard Communication Hazard Communication and Training Act The Hazard Communication and Safety (EH&S) to administer a program to comply with this law. Hazardous Chemicals Index EH&S maintains

  15. Wireless Antennas -Making Wireless Communications Perform Like Wireline Communications

    E-Print Network [OSTI]

    Hua, Yingbo

    1 Wireless Antennas - Making Wireless Communications Perform Like Wireline Communications Yingbo first provide an overview of some of the latest developments in wireless communications using multiple of wireless antennas or wireless relays that are distributed between a source and a destination. We propose

  16. Press Release Corporate Communications

    E-Print Network [OSTI]

    Reggelin, Michael

    Page: 1/2 Press Release Corporate Communications Karolinenplatz 5 D-64289 Darmstadt Germany Your.ch@pvw.tu- darmstadt.de Internet: http://www.tu- darmstadt.de/presse e-mail: presse@tu-darmstadt.de Winner. Press contact: Dr. Miriam Ronzoni Tel.: +49-(0)152­266­04064 e-mail: ronzoni@soz.uni-frankfurt.de PR

  17. Chemistry & Biology Brief Communication

    E-Print Network [OSTI]

    Herschlag, Dan

    . In each of these cases the native hydroxyl group interacts with a purine exocy- clic amine. Our resultsChemistry & Biology Brief Communication 20 -Fluoro Substituents Can Mimic Native 20 -Hydroxyls signature for tertiary interac- tions between 20 -hydroxyl groups and exocyclic amino groups within RNA

  18. Evolving Custom Communication Protocols

    E-Print Network [OSTI]

    Fernandez, Thomas

    Evolving Custom Communication Protocols by Wes Faler of Part-Time Scientists for 28C3, Berlin One-at-time simulation #12;Easy as 1...2...3... Parameter sweep int driver_movesPerTransaction[] = { 1, 20 }; int driver_wheelTicksPerCommand[] = { 512, 4096 }; int driver_commandsPerPacket[] = { 1, 25

  19. Temperature distribution in a flowing fluid heated in a microwave resonant cavity

    SciTech Connect (OSTI)

    Thomas, J.R. Jr. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States); Nelson, E.M.; Kares, R.J.; Stringfield, R.M. [Los Alamos National Lab., NM (United States)

    1996-04-01

    This paper presents results of an analytical study of microwave heating of a fluid flowing through a tube situated along the axis of a cylindrical microwave applicator. The interaction of the microwave field pattern and the fluid velocity profiles is illustrated for both laminar and turbulent flow. Resulting temperature profiles are compared with those generated by conventional heating through a surface heat flux. It is found that microwave heating offers several advantages over conventional heating.

  20. One piece microwave container screens for electrodeless lamps

    DOE Patents [OSTI]

    Turner, Brian (Myersville, MD); Ury, Michael (Bethesda, MD)

    1998-01-01

    A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. Replacing mesh material by solid metal material as part of the screen unit significantly reduces leakage of microwave energy from the lamp. The solid section has multiple compliant fingers defined therein for engaging the periphery of a flange on the waveguide unit so that a hose clamp can easily secure the screen to the assembly. Screen units of this type having different mesh section configurations can be interchanged in the lamp assembly to produce different respective illumination patterns.

  1. Microwave guiding in air along single femtosecond laser filament

    SciTech Connect (OSTI)

    Ren Yu; Alshershby, Mostafa; Qin Jiang; Hao Zuoqiang; Lin Jingquan

    2013-03-07

    Microwave guiding along single plasma filament generated through the propagation of femtosecond (fs) laser pulses in air has been demonstrated over a distance of about 6.5 cm, corresponding to a microwave signal intensity enhancement of more than 3-fold over free space propagation. The current propagation distance along the fs laser filament is in agreement with the calculations and limited by the relatively high resistance of the single plasma filament. Using a single fs laser filament to channel microwave radiation considerably alleviate requirements to the power of fs laser pulses compared to the case of the circular filaments waveguide. In addition, it can be used as a simple and non-intrusive method to obtain the basic parameters of laser-generated plasma filament.

  2. Large Scale Cosmic Microwave Background Anisotropies and Dark Energy

    E-Print Network [OSTI]

    J. Weller; A. M. Lewis

    2003-08-29

    In this note we investigate the effects of perturbations in a dark energy component with a constant equation of state on large scale cosmic microwave background anisotropies. The inclusion of perturbations increases the large scale power. We investigate more speculative dark energy models with w<-1 and find the opposite behaviour. Overall the inclusion of perturbations in the dark energy component increases the degeneracies. We generalise the parameterization of the dark energy fluctuations to allow for an arbitrary const ant sound speeds and show how constraints from cosmic microwave background experiments change if this is included. Combining cosmic microwave background with large scale structure, Hubble parameter and Supernovae observations we obtain w=-1.02+-0.16 (1 sigma) as a constraint on the equation of state, which is almost independent of the sound speed chosen. With the presented analysis we find no significant constraint on the constant speed of sound of the dark energy component.

  3. In situ RF/microwave remediation of soil experiment overview

    SciTech Connect (OSTI)

    Regan, A.H.; Palomares, M.E.; Polston, C.; Rees, D.E.; Roybal, W.T. [Los Alamos National Lab., NM (United States); Ross, T.J. [Univ. of New Mexico, Albuquerque, NM (United States)

    1995-09-01

    Contaminant plumes are significant waste problems that require remediation in both the government and private sectors. The authors are developing an in situ process that uses RF/microwave stimulation to remove pollutants from contaminated soils. This process is more efficient than existing technologies, creates less secondary pollution, and is applicable to situations that are not amenable to treatment by existing technologies. Currently, the most commonly used process is soil vapor extraction. However, even when it is successful, this technology is energy inefficient. The authors objective is to combine RF/microwave energy application with soil vapor extraction to help mobilize and efficiently remove the soil contaminants, specifically demonstrating the viability of RF/microwave induced, in situ, soil remediation of light and dense non-aqueous phase liquids (LNAPL, DNAPL) contaminants.

  4. A prototype silicon double quantum dot with dispersive microwave readout

    SciTech Connect (OSTI)

    Schmidt, A. R. Henry, E.; Namaan, O.; Siddiqi, I.; Lo, C. C.; Wang, Y.-T.; Bokor, J.; Yablonovitch, E.; Li, H.; Greenman, L.; Whaley, K. B.; Schenkel, T.

    2014-07-28

    We present a unique design and fabrication process for a lateral, gate-confined double quantum dot in an accumulation mode metal-oxide-semiconductor (MOS) structure coupled to an integrated microwave resonator. All electrostatic gates for the double quantum dot are contained in a single metal layer, and use of the MOS structure allows for control of the location of the two-dimensional electron gas via the location of the accumulation gates. Numerical simulations of the electrostatic confinement potential are performed along with an estimate of the coupling of the double quantum dot to the microwave resonator. Prototype devices are fabricated and characterized by transport measurements of electron confinement and reflectometry measurements of the microwave resonator.

  5. Faster than Light Quantum Communication

    E-Print Network [OSTI]

    A. Y. Shiekh

    2008-04-05

    Faster than light communication might be possible using the collapse of the quantum wave-function without any accompanying paradoxes.

  6. The Virtual Pheromone Communication Primitive

    E-Print Network [OSTI]

    Szumel, Leo; Owens, John D

    2006-01-01

    challenges for energy-constrained ad hoc wireless networks.H. : Energy-ef?cient communication pro- tocols for wireless

  7. A Permanent-Magnet Microwave Ion Source for a Compact High-Yield Neutron Generator

    E-Print Network [OSTI]

    Waldmann, Ole

    2011-01-01

    permanent-magnet microwave ion source for the high-yield neutron generator.Permanent-Magnet Microwave Ion Source for a Compact High-Yield Neutron GeneratorPermanent-Magnet Microwave Ion Source for a Compact High-Yield Neutron Generator ?

  8. A parameterized multiple-scattering model for microwave emission from dry snow

    E-Print Network [OSTI]

    Dozier, Jeff

    A parameterized multiple-scattering model for microwave emission from dry snow Lingmei Jiang a 2007; accepted 17 February 2007 Abstract Snow water equivalent (SWE) is one of the key parameters snow emission model for analyzing passive microwave data, including those from the Advanced Microwave

  9. Tunable microwave photonic phase shifter based on slow and fast light effects in

    E-Print Network [OSTI]

    Yao, Jianping

    Tunable microwave photonic phase shifter based on slow and fast light effects in a tilted fiber Bragg grating Hiva Shahoei and Jianping Yao* Microwave Photonics Research Laboratory, School@eecs.uottawa.ca http://www.eecs.uottawa.ca/~jpyao Abstract: A continuously tunable microwave phase shifter based

  10. Photonic-assisted microwave frequency multiplication with a tunable multiplication factor

    E-Print Network [OSTI]

    Yao, Jianping

    Photonic-assisted microwave frequency multiplication with a tunable multiplication factor Liang Gao,1,2 Weilin Liu,1 Xiangfei Chen,2 and Jianping Yao1, * 1 Microwave Photonics Research Laboratory); published October 31, 2013 Photonic-assisted microwave frequency multiplication with a tunable

  11. TOMOGRAPHIC RETRIEVAL OF CLOUD WATER DISTRIBUTIONS USING AN AIR-BORNE SCANNING MICROWAVE RADIOMETER

    E-Print Network [OSTI]

    TOMOGRAPHIC RETRIEVAL OF CLOUD WATER DISTRIBUTIONS USING AN AIR-BORNE SCANNING MICROWAVE RADIOMETER, for United States Government purposes. BNL-79834-2008-AB #12;ABSTRACT Microwave radiometers have been used, but neither the microwave technology nor the cloud models were mature enough for practical application

  12. FINITE ELEMENT MODEL OF MICROELECTROMECHANICAL SYSTEMS SWITCH OPERATING AT MICROWAVE FREQUENCIES

    E-Print Network [OSTI]

    De Flaviis, Franco

    #12;FINITE ELEMENT MODEL OF MICROELECTROMECHANICAL SYSTEMS SWITCH OPERATING AT MICROWAVE@uci.edu The recent developments of microelectromechanical systems (MEMS) switch and their use at microwave frequencies have promoted exciting advancements in the field of microwave switching. In comparison with other

  13. 1 Filter_Demo_Project_090910.doc Filter Design & Analysis using Microwave Office

    E-Print Network [OSTI]

    Weller/USF 1 Filter_Demo_Project_090910.doc Filter Design & Analysis using Microwave Office_Demo_MWO. The purpose of the module is to introduce the subject of RF/microwave lumped element filter design, looking simulator features of the CAD tool Microwave Office (or MWO, from Applied Wave Research). In another module

  14. Apparatus with moderating material for microwave heat treatment of manufactured components

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN)

    2011-05-10

    An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

  15. Emission of non-thermal microwave radiation by a Martian dust storm Christopher Ruf,1

    E-Print Network [OSTI]

    Ruf, Christopher

    #12;Emission of non-thermal microwave radiation by a Martian dust storm Christopher Ruf,1 Nilton O report evidence for the emission of non-thermal microwave radiation by a deep Martian dust storm, S. Gross, L. Skjerve, and B. Cantor (2009), Emission of non-thermal microwave radiation by a Martian

  16. Observational Datasets We use two different satellite soil moisture datasets, one derived from the Advanced Microwave

    E-Print Network [OSTI]

    Guichard, Francoise

    the Advanced Microwave Scanning Radiometer Earth Observing system (AMSRE) on the Aqua satellite and another from overpasses of satellites with passive microwave sensors onboard as a starting point is done by using motionvectors derived from geostationary data to propagate the microwave rainfall

  17. Microwave palaeointensities from a recent Mexican lava ow, baked sediments and reheated pottery

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Microwave palaeointensities from a recent Mexican lava £ow, baked sediments and reheated pottery H form 10 June 2003; accepted 10 June 2003 Abstract Microwave palaeointensity (PI) estimates have been to overestimate the correct values. In addition to lava samples, microwave PIs were also determined from pottery

  18. NOAA Technical Memorandum ERl GLERL-13 ON THE USE OF MICROWAVE RADIATION

    E-Print Network [OSTI]

    NOAA Technical Memorandum ERl GLERL-13 ON THE USE OF MICROWAVE RADIATION FOR GREAT LAKES ICE.2 Federally Sponsored Studies 3.2.1 Ground Parameters 3.2.2 Using Radar to Classify Ice 4. FUTURE MICROWAVE THE USE OF MICROWAVE RADIATION* FOR GREAT LAKES ICE SURVEILLANCE Brenda Blanton Hagman With the desire

  19. Three-Dimensional Quantitative Microwave Imaging of Realistic Numerical Breast Phantoms Using Huber Regularization

    E-Print Network [OSTI]

    Pizurica, Aleksandra

    Three-Dimensional Quantitative Microwave Imaging of Realistic Numerical Breast Phantoms Using Huber detection with microwaves is based on the difference in dielectric properties between normal and malignant microwave scattering is a nonlinear, ill-posed inverse problem. We proposed to use the Huber regularization

  20. 314 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 3, FEBRUARY 1, 2009 Microwave Photonics

    E-Print Network [OSTI]

    Yao, Jianping

    314 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 3, FEBRUARY 1, 2009 Microwave Photonics Jianping and distribution of microwave and millimeter-wave signals for applications such as broadband wireless access. In this tutorial, techniques developed in the last few years in microwave photonics are reviewed with an emphasis

  1. Theoretical insight into ArO surface-wave microwave discharges

    E-Print Network [OSTI]

    Guerra, Vasco

    Theoretical insight into Ar­O 2 surface-wave microwave discharges This article has been downloaded-wave microwave discharges Kinga Kutasi1 , Vasco Guerra2 and Paulo S´a2,3 1 Research Institute for Solid State electron and heavy-particle kinetics in Ar­O2 surface-wave microwave discharges generated in long

  2. IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 22, NO. 17, SEPTEMBER 1, 2010 1285 Continuously Tunable Photonic Microwave

    E-Print Network [OSTI]

    Yao, Jianping

    Photonic Microwave Frequency Multiplication by Use of an Unbalanced Temporal Pulse Shaping System Chao Wang approach to achieving microwave frequency multiplication with a continuously tunable multiplication factor dispersive element for a second real-time Fourier transformation. The microwave frequency multiplication

  3. Multitap Microwave Photonic Filter With Negative Coefficients Based on the Inherent

    E-Print Network [OSTI]

    Yao, Jianping

    Multitap Microwave Photonic Filter With Negative Coefficients Based on the Inherent Birefringence, IEEE DOI: 10.1109/JPHOT.2013.2265981 1943-0655/$31.00 Ó2013 IEEE #12;Multitap Microwave Photonic Filter 2 Microwave Photonics Research Laboratory, School of Electrical Engineering and Computer Science

  4. Single scattering parameters of randomly oriented snow particles at microwave frequencies

    E-Print Network [OSTI]

    Houze Jr., Robert A.

    Single scattering parameters of randomly oriented snow particles at microwave frequencies Min for computations of single scattering parameters at microwave frequencies requires a thorough knowledge of how of randomly oriented snow particles at microwave frequencies, J. Geophys. Res., 111, D14201, doi:10

  5. Comparing Optical and Microwave Remote Sensing-based Vegetation Density over Mongolia for 1988-2006

    E-Print Network [OSTI]

    Evans, Jason

    Comparing Optical and Microwave Remote Sensing-based Vegetation Density over Mongolia for 1988 and microwave sensors are expected to provide complementary vegetation information. Here we compared NDVI from-annual variations. However, the long term changes reflected by them are divergent. Microwave based VOD shows

  6. Modeling of passive microwave responses in convective situations using output from mesoscale models

    E-Print Network [OSTI]

    Chaboureau, Jean-Pierre

    Modeling of passive microwave responses in convective situations using output from mesoscale models 2003; revised 27 January 2004; accepted 5 February 2004; published 30 March 2004. [1] Passive microwave, which essentially sense cloud tops. Therefore passive microwave observations are a very promising tool

  7. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 56, NO. 12, DECEMBER 2008 3015 Guest Editorial

    E-Print Network [OSTI]

    Tentzeris, Manos

    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 56, NO. 12, DECEMBER 2008 3015 Guest Editorial THIS TRANSACTIONS' Special Issue contains expanded papers from the 2008 IEEE Microwave Theory and Tech- niques (IEEE MTT-S) International Microwave Symposium (IMS) held June 15­20, 2008, Atlanta, GA

  8. Microwave-assisted sample preparation of coal and coal fly ash for subsequent metal determination

    SciTech Connect (OSTI)

    Srogi, K.

    2007-01-15

    The aim of this paper is to review microwave-assisted digestion of coal and coal fly ash. A brief description of microwave heating principles is presented. Microwave-assisted digestion appears currently to be the most popular preparation technique, possibly due to the comparatively rapid sample preparation and the reduction of contamination, compared to the conventional hot-plate digestion methods.

  9. Analysis and control of the thermal runaway of ceramic slab under microwave heating

    E-Print Network [OSTI]

    Sheen, Dongwoo

    Analysis and control of the thermal runaway of ceramic slab under microwave heating Changjun Liu equation (HTE) is presented in this paper, and the temperature variation in a ceramic slab during microwave heating is obtained. The temperature variation in the ceramic slab during microwave heat- ing is simulated

  10. ADVANCED BROADBAND COMMUNICATIONS CENTER (CCABA)

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    ) Advanced Broadband Communications Center (CCABA) Broadband Communications Systems Research Group (CBA) #12 Junyent Academic staff: ~ 25 Students: ~ 40 ·Trials ·Tests #12;About the CBA Group Optical Communications and Electronic Signature CBA research group #12;Topics Optical Networking ­ IP over ASON/GMPLS networks

  11. Quick Manual LMS communication setup

    E-Print Network [OSTI]

    Quick Manual LMS communication setup - 1 - © SICK AG · Auto Ident · Germany · All rights reserved Quick Manual for LMS communication setup Hardware setup and measurement mode configuration Version 1.0 June 2001 (HW/MV) #12;Quick Manual LMS communication setup - 2 - © SICK AG · Auto Ident · Germany · All

  12. Vice President Marketing and Communications

    E-Print Network [OSTI]

    Arnold, Jonathan

    Vice President Marketing and Communications Enjoy Athens! Great schools Affordable housing Eclectic overall marketing and strategic communications efforts. With 35,000 students in 17 schools and colleges President will be responsible for creating and executing a strategic marketing and communication plan which

  13. Algorithms for Supporting Compiled Communication

    E-Print Network [OSTI]

    Yuan, Xin

    Algorithms for Supporting Compiled Communication Xin Yuan Rami Melhem Rajiv Gupta Dept. We present an experimental compiler, E­SUIF, that supports compiled communication for High algorithms used in E­SUIF. We further demonstrate the effectiveness of compiled communication on all­ optical

  14. Strategic Communication and Public Relations

    E-Print Network [OSTI]

    Little, Tony

    MSc Strategic Communication and Public Relations School of Arts and Humanities http://stir.ac.uk/in Joint Degree with Pompeu Fabra University, Barcelona #12;Why MSc in Strategic Communication and Public Relations? New in 2013/14, the MSc in Strategic Communication and Public Relations stands out from other

  15. carleton.ca Communication Studies

    E-Print Network [OSTI]

    Dawson, Jeff W.

    carleton.ca Communication Studies #12;It is often said that we live in a media society, but what and understand media content? What are some alternative ways of organizing our patterns of communication to promote the public interest? These are some of the fundamental questions that a degree in Communication

  16. Communication Needs and Integration Options

    E-Print Network [OSTI]

    Communication Needs and Integration Options for AMI in the Smart Grid Future Grid Initiative White System #12;Communication Needs and Integration Options for AMI in the Smart Grid Prepared for the Project the current state of communications for the advanced metering infrastructure (AMI) and recommends

  17. Dark state cooling of a trapped ion using microwave coupling

    E-Print Network [OSTI]

    Yong Lu; Jian-Qi Zhang; Jin-Ming Cui; Dong-Yang Cao; Shuo Zhang; Yun-Feng Huang; Chuan-Feng Li; Guang-Can Guo

    2015-07-09

    We propose a new dark-state cooling method of trapped ion systems in the Lamb-Dicke limit. With application of microwave dressing the ion, we can obtain two electromagnetically induced transparency structures. The heating effects caused by the carrier and the blue sideband transition vanish due to the EIT effects and the final mean phonon numbers can be much less than the recoil limit. Our scheme is robust to fluctuations of microwave power and laser intensities which provides a broad cooling bandwidth to cool motional modes of a linear ion chain. Moreover, it is more suitable to cool four-level ions on a large-scale ion chip.

  18. Complex microwave conductivity of Na-DNA powders

    E-Print Network [OSTI]

    H. Kitano; K. Ota; A. Maeda

    2006-08-01

    We report the complex microwave conductivity, $\\sigma=\\sigma_1-i\\sigma_2$, of Na-DNA powders, which was measured from 80 K to 300 K by using a microwave cavity perturbation technique. We found that the magnitude of $\\sigma_1$ near room temperature was much larger than the contribution of the surrounding water molecules, and that the decrease of $\\sigma_1$ with decreasing temperature was sufficiently stronger than that of the conduction of counterions. These results clearly suggest that the electrical conduction of Na-DNA is intrinsically semiconductive.

  19. FINGERPRINTS OF GALACTIC LOOP I ON THE COSMIC MICROWAVE BACKGROUND

    SciTech Connect (OSTI)

    Liu, Hao [Niels Bohr Institute and Discovery Center, Copenhagen University, Blegdamsvej 17, DK-2100 Copenhagen Ø (Denmark); Mertsch, Philipp [Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, M/S 29, Menlo Park, CA 94025 (United States); Sarkar, Subir, E-mail: liuhao@nbi.dk [Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP (United Kingdom)

    2014-07-10

    We investigate possible imprints of galactic foreground structures such as the ''radio loops'' in the derived maps of the cosmic microwave background. Surprisingly, there is evidence for these not only at radio frequencies through their synchrotron radiation, but also at microwave frequencies where emission by dust dominates. This suggests the mechanism is magnetic dipole radiation from dust grains enriched by metallic iron or ferrimagnetic molecules. This new foreground we have identified is present at high galactic latitudes, and potentially dominates over the expected B-mode polarization signal due to primordial gravitational waves from inflation.

  20. Ultra high vacuum broad band high power microwave window

    DOE Patents [OSTI]

    Nguyen-Tuong, Viet (Seaford, VA); Dylla, III, Henry Frederick (Yorktown, VA)

    1997-01-01

    An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost.

  1. Ultra high vacuum broad band high power microwave window

    DOE Patents [OSTI]

    Nguyen-Tuong, V.; Dylla, H.F. III

    1997-11-04

    An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost. 5 figs.

  2. Electromagnetic Characterization of MIMO Communication Systems

    E-Print Network [OSTI]

    Heath Jr., - Robert W.

    Electromagnetic Characterization of MIMO Communication Systems Kapil R. Dandekar, Sumant Kawale) wireless communication links [1, 2]. Systems with MIMO communication links use multiple antenna arrays, one generation mobile cellular systems [9]. The theoretical capabilities of MIMO communication links have been

  3. Fermilab at Work | Communications and Outreach

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

    Office of Communication Fermilab Community Forum Internal Communication Forum Education Office Graphic Design Standards Visual Media Services VMS Photo Database...

  4. Electronic structure and magnetic properties of FeWO{sub 4} nanocrystals synthesized by the microwave-hydrothermal method

    SciTech Connect (OSTI)

    Almeida, M.A.P. [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil)] [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil); Cavalcante, L.S., E-mail: laeciosc@bol.com.br [INCTMN-Universidade Estadual, Paulista, P.O. Box 355, 14801-907, Araraquara, SP (Brazil); Morilla-Santos, C.; Filho, P.N. Lisboa [MAv-Universidade Estadual, Paulista, P.O. Box 473, 17033-360, Bauru, SP (Brazil)] [MAv-Universidade Estadual, Paulista, P.O. Box 473, 17033-360, Bauru, SP (Brazil); Beltran, A.; Andres, J.; Gracia, L. [Department de Quimica Fisica i Analitica, Universitat Jaume I, E-12071 Castello (Spain)] [Department de Quimica Fisica i Analitica, Universitat Jaume I, E-12071 Castello (Spain); Longo, E. [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil) [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil); INCTMN-Universidade Estadual, Paulista, P.O. Box 355, 14801-907, Araraquara, SP (Brazil)

    2012-11-15

    This communication reports that FeWO{sub 4} nanocrystals were successfully synthesized by the microwave-hydrothermal method at 443 K for 1 h. The structure and shape of these nanocrystals were characterized by X-ray diffraction, Rietveld refinement, and transmission electron microscopy. The experimental results and first principles calculations were combined to explain the electronic structure and magnetic properties. Experimental data were obtained by magnetization measurements for different applied magnetic fields. Theoretical calculations revealed that magnetic properties of FeWO{sub 4} nanocrystals can be assigned to two magnetic orderings with parallel or antiparallel spins in adjacent chains. These factors are crucial to understanding of competition between ferro- and antiferromagnetic behavior. Highlights: Black-Right-Pointing-Pointer Monophasic FeWO{sub 4} nanocrystals were synthesized by the microwave-hydrothermal method. Black-Right-Pointing-Pointer Rietveld refinement and clusters model for monoclinic structure Black-Right-Pointing-Pointer Magnetic properties of FeWO{sub 4} nanocrystals at different temperatures.

  5. Using indium tin oxide material to implement the imaging of microwave plasma ignition process

    SciTech Connect (OSTI)

    Wang, Qiang; Hou, Lingyun; Zhang, Guixin Zhang, Boya; Liu, Cheng; Wang, Zhi; Huang, Jian

    2014-02-17

    In this paper, a method is introduced to get global observation of microwave plasma ignition process at high pressure. A microwave resonator was designed with an indium tin oxide coated glass at bottom. Microwave plasma ignition was implemented in methane and air mixture at 10 bars by a 2?ms-3?kW-2.45?GHz microwave pulse, and the high speed images of the ignition process were obtained. The images visually proved that microwave plasma ignition could lead to a multi-point ignition. The system may also be applied to obtain Schlieren images, which is commonly used to observe the development of flame kernel in an ignition process.

  6. Biomonitoring with Wireless Communications

    SciTech Connect (OSTI)

    Budinger, Thomas F.

    2003-03-01

    This review is divided into three sections: technologies for monitoring physiological parameters; biosensors for chemical assays and wireless communications technologies including image transmissions. Applications range from monitoring high risk patients for heart, respiratory activity and falls to sensing levels of physical activity in military, rescue, and sports personnel. The range of measurements include, heart rate, pulse wave form, respiratory rate, blood oxygen, tissue pCO2, exhaled carbon dioxide and physical activity. Other feasible measurements will employ miniature chemical laboratories on silicon or plastic chips. The measurements can be extended to clinical chemical assays ranging from common blood assays to protein or specialized protein measurements (e.g., troponin, creatine, and cytokines such as TNF and IL6). Though the feasibility of using wireless technology to communicate vital signs has been demonstrated 32 years ago (1) it has been only recently that practical and portable devices and communications net works have become generally available for inexpensive deployment of comfortable and affordable devices and systems.

  7. 786 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 34, NO. 3, JUNE 2006 Comparison of Two Microwave and Two Probe

    E-Print Network [OSTI]

    Kaganovich, Igor

    786 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 34, NO. 3, JUNE 2006 Comparison of Two Microwave: cylindrical probe, disk probe, microwave cavity, and microwave hairpin. The measurements are made in hot and cylindrical) and two microwave methods of measuring electron density are compared. In the cases where

  8. EE 153 Microwave Circuits and Antennas 12 units (3-2-7); 3rd term. Prerequisite: EE 45.

    E-Print Network [OSTI]

    Haile, Sossina M.

    EE 153 ­ Microwave Circuits and Antennas 12 units (3-2-7); 3rd term. Prerequisite: EE 45 microwave circuits using sophisticated network analyzers worth well over $100,000. The lab circuits will use the commercial microwave computer-aided engineering software package Microwave Office, which

  9. May 31, 2005 Reflection Of Microwave Pulses From Acoustic Waves

    E-Print Network [OSTI]

    May 31, 2005 . Reflection Of Microwave Pulses From Acoustic Waves: Summary of Experimental of an acoustic wave as a reflecting virtual interface for propagating impulses. It is by now well accepted (e.g., see [2, 7, 11, 14]) that acoustic pressure waves will interact with electromagnetic signals in ways

  10. Metal slits and liquid crystals at microwave frequencies

    E-Print Network [OSTI]

    Exeter, University of

    by a permanent magnet gave a well-aligned monodomain. The director alignment is set parallel to the E thin slits in metal structures, a completely new generation of LC devices for use at microwaves may for by a 3608 mechanical phase shifter in the other arm. A magnetic field of 5 kG imposed upon the LC

  11. Realization of a Laser Cooled Microwave Power Standard (conference digest)

    E-Print Network [OSTI]

    Paulusse, D C; Michaud, A; Paulusse, David C.; Rowell, Nelson L.; Michaud, Alain

    2002-01-01

    We demonstrate the feasibility of a novel microwave power standard based on the electromagnetic interaction with cold atoms. Under the effect of the radiation, the internal state populations will undergo a Rabi oscillation. The measurement of its frequency will allow the determination of the electromagnetic field strength.

  12. Transmission Line Resistance Compression Networks for Microwave Rectifiers

    E-Print Network [OSTI]

    Perreault, Dave

    Transmission Line Resistance Compression Networks for Microwave Rectifiers Taylor W. Barton, Joshua--This work presents a development of multi-way transmission-line resistance compression networks (TLRCNs) and their application to rf-to-dc conversion. We derive analytical expressions for the behavior of TLRCNs, and describe

  13. ECRH microwave beam broadening in the edge turbulent plasma

    SciTech Connect (OSTI)

    Sysoeva, E. V.; Gusakov, E. Z.; Popov, A. Yu. [Ioffe Institute, St. Petersburg, Russia and RL PAT SPbSPU, St. Petersburg (Russian Federation); Silva, F. da [Institute of Plasmas and Nuclear Fusion, IST, Lisbon (Portugal); Heuraux, S. [IJL UMR-7198 CNRS-Université de Lorraine, BP70239, 54506 Vandoeuvre Cedex (France)

    2014-02-12

    The influence of turbulent plasma density fluctuations on angular and spatial beam width is treated analytically in the framework of WKB based eikonal method. Reasonable agreement of analytical and numerical treatment results is demonstrated within the domain of quasi-optical approximation validity. Significant broadening of microwave beams is predicted for future ECRH experiments at ITER.

  14. Microwave Dielectric Heating of Drops in Microfluidic Devices

    E-Print Network [OSTI]

    David Issadore; Katherine J. Humphry; Keith A. Brown; Lori Sandberg; David Weitz; Robert M. Westervelt

    2009-01-09

    We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has a large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picoliter drop of water and this enables very fast thermal cycling. We demonstrate microwave dielectric heating in a microfluidic device that integrates a flow-focusing drop maker, drop splitters, and metal electrodes to locally deliver microwave power from an inexpensive, commercially available 3.0 GHz source and amplifier. The temperature of the drops is measured by observing the temperature dependent fluorescence intensity of cadmium selenide nanocrystals suspended in the water drops. We demonstrate characteristic heating times as short as 15 ms to steady-state temperatures as large as 30 degrees C above the base temperature of the microfluidic device. Many common biological and chemical applications require rapid and local control of temperature, such as PCR amplification of DNA, and can benefit from this new technique.

  15. Magnetoresistance oscillations in triple quantum wells under microwave irradiation

    E-Print Network [OSTI]

    Gusev, Guennady

    to the ``photovoltaic'' mechanism describing combined action of the microwave and dc fields on both temporal and angular 1011 cmÀ2 Þ and a mobility of 5 Â 105 cm2 =V s. The central well width is 230 °A and both side wells

  16. Temperature Modeling for Reaction Development in Microwave-Assisted Chemistry

    E-Print Network [OSTI]

    Yakovlev, Vadim

    by measurements) is proposed to verify the effect of convection observed in the reactor. The developed principles-scale resonator-type reactor in a 3D model capable of monitoring electromagnetic and thermal processes can be used in the models of other reactors to help with key developments in microwave

  17. CONTROL OF MICROWAVE-PROPELLED SAILS USING DELAYED MEASUREMENTS

    E-Print Network [OSTI]

    , University of New Mexico, Albuquerque, NM 87131 Department of Mechanical Engineering, University of New Mexico, Albuquerque, NM 87131 Microwave Sciences, Inc., 1041 Los Arabis Lane, Lafayette, CA 94549 in struc- tures, materials, optics, and adaptive and multi- functional systems. Solar and other types

  18. Microwave-assisted synthesis of transition metal phosphide

    DOE Patents [OSTI]

    Viswanathan, Tito

    2014-12-30

    A method of synthesizing transition metal phosphide. In one embodiment, the method has the steps of preparing a transition metal lignosulfonate, mixing the transition metal lignosulfonate with phosphoric acid to form a mixture, and subjecting the mixture to a microwave radiation for a duration of time effective to obtain a transition metal phosphide.

  19. Efficient Cosmological Parameter Estimation from Microwave Background Anisotropies

    E-Print Network [OSTI]

    Arthur Kosowsky; Milos Milosavljevic; Raul Jimenez

    2002-06-02

    We revisit the issue of cosmological parameter estimation in light of current and upcoming high-precision measurements of the cosmic microwave background power spectrum. Physical quantities which determine the power spectrum are reviewed, and their connection to familiar cosmological parameters is explicated. We present a set of physical parameters, analytic functions of the usual cosmological parameters, upon which the microwave background power spectrum depends linearly (or with some other simple dependence) over a wide range of parameter values. With such a set of parameters, microwave background power spectra can be estimated with high accuracy and negligible computational effort, vastly increasing the efficiency of cosmological parameter error determination. The techniques presented here allow calculation of microwave background power spectra $10^5$ times faster than comparably accurate direct codes (after precomputing a handful of power spectra). We discuss various issues of parameter estimation, including parameter degeneracies, numerical precision, mapping between physical and cosmological parameters, and systematic errors, and illustrate these considerations with an idealized model of the MAP experiment.

  20. Microwave Radiometer – 3 Channel (MWR3C) Handbook

    SciTech Connect (OSTI)

    Cadeddu, MP

    2012-05-04

    The microwave radiometer 3-channel (MWR3C) provides time-series measurements of brightness temperatures from three channels centered at 23.834, 30, and 89 GHz. These three channels are sensitive to the presence of liquid water and precipitable water vapor.

  1. Radio Frequency & Microwave Energy for the Petro Chemical Industry 

    E-Print Network [OSTI]

    Raburn, R.

    1999-01-01

    ----- ------- ~...:::::...= ~-= = -.~-- -........ ""':'"""4r' -..-= __ Comm",JiC(I!;(HIS & 11(1'I?e'?'lIdw:'rie~f beverly microwave diViSion M icrowave MateriaI Interaction5 ~~~~F'~il _ ~1lW $:~~~~:;: I m:&m~ Nl~ ?????? ....,":'-~ ..', .;:.,"':; ....-.: .?... ? Current flows in presence of electric...

  2. ADAPTIVE OPTICAL SIGNAL PROCESSING FOR MICROWAVE-CARRIER BROADBAND SIGNALS

    E-Print Network [OSTI]

    Popovic, Zoya

    ADAPTIVE OPTICAL SIGNAL PROCESSING FOR MICROWAVE-CARRIER BROADBAND SIGNALS Paul Smith, Zoya Popovic antenna array in which adaptive processing of the received signals is performed by dynamic holographic to other signal-processing algorithms is also discussed. 1. INTRODUCTION A key challenge to present

  3. In situ RF/microwave remediation of soil experiment overview

    SciTech Connect (OSTI)

    Regan, A.H.; Roybal, W.T.; Ortega, R.; Palomares, M.; Rees, D.E.; Tischler, D.

    1996-06-01

    Contaminant plumes are significant waste problems that require remediation in both the government and private sectors. The authors have developed an in situ process that uses RF/microwave stimulation to remove pollutants from contaminated soils. This process is more efficient than existing technologies, creates less secondary pollution, and is applicable to situations that are not amenable to treatment by existing technologies. Currently the most commonly used process is soil vapor extraction. However, even when it is successful, this technology is energy inefficient. The objective is to combine RF/microwave energy application with soil vapor extraction to help mobilize and efficiently remove the soil contaminants, specifically demonstrating the viability of RF/microwave induced, in situ, soil remediation of light and dense non-aqueous phase liquids (LNAPL, DNAPL) contaminants. The authors have conducted a number of benchtop experiments involving RF/microwave energy deposition and vapor extraction on controlled contaminated soil samples with successful removal of the contaminants. This paper will describe the experimental hardware utilized, the experiments performed, the chemical analysis performed pre- and post-energy application, and results. In the experiments, two different halogenated liquids were used to contaminate the soil: carbon tetrachloride and 1,1,1-trichloroethane.

  4. Microwave-induced phase escape in a Josephson tunnel junction

    E-Print Network [OSTI]

    Guozhu, Sun; Yiwen, Wang; Junyu, Cao; Jian, Chen; Zhengming, Ji; Lin, Kang; Weiwei, Xu; Yang, Yu; Han, Siyuan; Peiheng, Wu

    2008-03-28

    on the power and frequency of the applied microwave. We present a model to describe the behavior of the primary peak in the switching current distribution, which is confirmed by our experimental results. The obtained features can be used to characterize...

  5. January 16, 2003 Quasiperiodic pulsations in a solar microwave burst

    E-Print Network [OSTI]

    White, Stephen

    January 16, 2003 Quasiperiodic pulsations in a solar microwave burst V. V. Grechnev1,2 , S. M. White2 and M. R. Kundu2 1 Institute of Solar-Terrestrial Physics, Lermontov St. 126, Irkutsk, Russia,kundu,white@astro.umd.edu ABSTRACT Quasiperiodic pulsations in solar flares can provide important information on physical conditions

  6. Broadband microwave imaging spectroscopy with a solardedicated array

    E-Print Network [OSTI]

    Broad­band microwave imaging spectroscopy with a solar­dedicated array T.S. Bastian a , D.E. Gary b of Astronomy, University of Maryland, College Park, MD 20742 d Solar Astronomy 264­33, Caltech, Pasadena, CA the thermal structure of the solar atmosphere, and to study energy release and particle energization

  7. Microwave-induced thermoacoustic tomography: Reconstruction by synthetic aperture

    E-Print Network [OSTI]

    Wang, Lihong

    Microwave-induced thermoacoustic tomography: Reconstruction by synthetic aperture Dazi Feng, Yuan thermoacoustic signals, to which the delay-and-sum algorithm was applied for image reconstruc- tion. We greatly-induced thermoacoustic tomography based on focused transducers. Two mi- crowave sources, which had frequencies of 9 and 3

  8. Microwaves in Organic Synthesis Edited by Andre Loupy

    E-Print Network [OSTI]

    Cirkva, Vladimir

    substances in chemical production. Microwave (MW) energy is a nonclassical energy source, with ultrasound unprotected by law. Printed in the Federal Republic of Germany Printed on acid-free paper Typesetting Asco increase production efficiency or save the environment by reducing the use or generation of hazardous

  9. Ultra-low power microwave CHFET integrated circuit development

    SciTech Connect (OSTI)

    Baca, A.G.; Hietala, V.M.; Greenway, D.; Sloan, L.R.; Shul, R.J.; Muyshondt, G.P.; Dubbert, D.F.

    1998-04-01

    This report summarizes work on the development of ultra-low power microwave CHFET integrated circuit development. Power consumption of microwave circuits has been reduced by factors of 50--1,000 over commercially available circuits. Positive threshold field effect transistors (nJFETs and PHEMTs) have been used to design and fabricate microwave circuits with power levels of 1 milliwatt or less. 0.7 {micro}m gate nJFETs are suitable for both digital CHFET integrated circuits as well as low power microwave circuits. Both hybrid amplifiers and MMICs were demonstrated at the 1 mW level at 2.4 GHz. Advanced devices were also developed and characterized for even lower power levels. Amplifiers with 0.3 {micro}m JFETs were simulated with 8--10 dB gain down to power levels of 250 microwatts ({mu}W). However 0.25 {micro}m PHEMTs proved superior to the JFETs with amplifier gain of 8 dB at 217 MHz and 50 {mu}W power levels but they are not integrable with the digital CHFET technology.

  10. Propagating Structure Of A Microwave Driven Shock wave Inside A Tube

    SciTech Connect (OSTI)

    Shimada, Yutaka; Shibata, Teppei; Yamaguchi, Toshikazu; Komurasaki, Kimiya [Department of Advanced Energy, the University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba, 277-8561 (Japan); Oda, Yasuhisa; Kajiwara, Ken; Takahashi, Koji; Kasugai, Atsushi; Sakamoto, Keishi [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki, 311-0193 (Japan); Arakawa, Yoshihiro [Department of Aeronautics and Astronautics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 (Japan)

    2010-05-06

    The thrust generation process of a microwave rocket is similar to a pulse detonation engine, and understanding the interactions between microwave plasma and shock waves is important. Shadowgraph images of the microwave plasma generated in a tube under atmospheric air were taken. The observed plasma and shock wave were propagating one-dimensionally at constant velocity inside the tube. In order to understand the flow field inside the rocket, one-dimensional CFD analysis was conducted. With the change of microwave power density, the structure of the flow field was classified into two regimes: Microwave Supported Combustion (MSC), and Microwave Supported Detonation (MSD). The structure of the MSD was different from the structure of a chemical detonation, which implied the existence of a preheating in front of the shock wave. Furthermore, the flight performance was estimated by calculating the momentum coupling coefficient. It was confirmed that the efficiency was nearly constant in the MSD regime, with the increase of microwave power density.

  11. AMI OBSERVATIONS OF THE ANOMALOUS MICROWAVE EMISSION IN THE PERSEUS MOLECULAR CLOUD

    SciTech Connect (OSTI)

    Tibbs, C. T. [Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Scaife, A. M. M. [School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ (United Kingdom); Dickinson, C.; Davies, R. D.; Davis, R. J.; Watson, R. A. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL (United Kingdom); Paladini, R. [NASA Herschel Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Grainge, K. J. B., E-mail: ctibbs@ipac.caltech.edu [Astrophysics Group, Cavendish Laboratory, J J Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

    2013-05-10

    We present observations of the known anomalous microwave emission region, G159.6-18.5, in the Perseus molecular cloud at 16 GHz performed with the Arcminute Microkelvin Imager Small Array. These are the highest angular resolution observations of G159.6-18.5 at microwave wavelengths. By combining these microwave data with infrared observations between 5.8 and 160 {mu}m from the Spitzer Space Telescope, we investigate the existence of a microwave-infrared correlation on angular scales of {approx}2'. We find that the overall correlation appears to increase toward shorter infrared wavelengths, which is consistent with the microwave emission being produced by electric dipole radiation from small, spinning dust grains. We also find that the microwave-infrared correlation peaks at 24 {mu}m (6.7{sigma}), suggesting that the microwave emission is originating from a population of stochastically heated small interstellar dust grains rather than polycyclic aromatic hydrocarbons.

  12. System to continuously produce carbon fiber via microwave assisted plasma processing

    DOE Patents [OSTI]

    White, Terry L; Paulauskas, Felix L; Bigelow, Timothy S

    2014-03-25

    A method for continuously processing carbon fiber including establishing a microwave plasma in a selected atmosphere contained in an elongated chamber having a microwave power gradient along its length defined by a lower microwave power at one end and a higher microwave power at the opposite end of the elongated chamber. The elongated chamber having an opening in each of the ends of the chamber that are adapted to allow the passage of the fiber tow while limiting incidental gas flow into or out of said chamber. A continuous fiber tow is introduced into the end of the chamber having the lower microwave power. The fiber tow is withdrawn from the opposite end of the chamber having the higher microwave power. The fiber to is subjected to progressively higher microwave energy as the fiber is being traversed through the elongated chamber.

  13. Satellite remote sensing of global rainfall using passive microwave radiometry

    SciTech Connect (OSTI)

    Ferriday, J.G.

    1994-12-31

    Global rainfall over land and ocean is estimated using measurements of upwelling microwaves by a satellite passive microwave radiometer. Radiative transfer calculations through a cloud model are used to parameterize an inversion technique for retrieving rain rates from brightness temperatures measured by the Special Sensor Microwave Imager (SSM/I). The rainfall retrieval technique is based on the interaction between multi-spectral microwave radiances and millimeter sized liquid and frozen hydrometeors distributed in the satellite`s field of view. The rain rate algorithm is sensitive to both hydrometeor emission and scattering while being relatively insensitive to extraneous atmospheric and surface effects. Separate formulations are used over ocean and land to account for different background microwave characteristics and the algorithm corrects for inhomogeneous distributions of rain rates within the satellite`s field of view. Estimates of instantaneous and climate scale rainfall are validated through comparisons with modeled clouds, surface radars, rain gauges and alternative satellite estimates. The accuracy of the rainfall estimates is determined from a combination of validation comparisons, theoretical sampling error calculations, and modeled sensitivity to variations in atmospheric and surface radiative properties. An error budget is constructed for both instantaneous rain rates and climate scale global estimates. At a one degree resolution, the root mean square errors in instantaneous rain rate estimates are 13% over ocean and 20% over land. The root mean square errors in global rainfall totals over a four month period are found to be 46% over ocean and 63% over land. Global rainfall totals are computed on a monthly scale for a three year period from 1987 to 1990. The time series is analyzed for climate scale rainfall distribution and variability.

  14. 1014 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 52, NO. 3, MARCH 2004 Recycling Ambient Microwave Energy With

    E-Print Network [OSTI]

    are in wireless powering of industrial sensors and recycling of ambient RF energy. A 64-el- ement dual Ambient Microwave Energy With Broad-Band Rectenna Arrays Joseph A. Hagerty, Student Member, IEEE, Florian] including utility power satellites [5], mechanical actuators for space-based telescopes [6], small dc motor

  15. Microwave Plasma Chemical Vapor Deposition of Carbon Coatings on LiNi1/3Co1/3Mn1/3O2 for Li-Ion Battery Composite Cathodes

    E-Print Network [OSTI]

    Doeff, M.M.

    2012-01-01

    Microwave Plasma Chemical Vapor Deposition of Carbonanthracene, by a one-step microwave plasma chemical vaporFigure 1. A diagram of the microwave plasma chemical vapor

  16. Report: EM Communications

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (BillionProvedTravelInformationCollectionGridReno Roundtable SummaryEM Communications August 24, 2006

  17. Report: EM Communications

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (BillionProvedTravelInformationCollectionGridReno Roundtable SummaryEM Communications August 24,

  18. Covert Communication Networks 

    E-Print Network [OSTI]

    Nix, Timothy Glen

    2013-08-02

    using shared keys assigned by the blender when a new jondo joins the crowd. Tor is the most popular anonymous communications system in use and is known as the second-generation onion router due to the fact that it is based on, and makes several modi... cations to the original onion routing design in terms of security, e - ciency, and deployability [17]. Tor uses a small set of trusted directory servers in order to distribute information about known onion routers in the network. In order to create a...

  19. Office of Communication - Staff

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access toOctober 1996 - September 2001 The rates3Communication Staff

  20. ALS Communications Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 20102016 News BelowAskedAIKENALS CapabilitiesCommunications

  1. Communications | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartment ofCommercial Grade DedicationaOffice ofSI Communications

  2. ORIGINAL COMMUNICATION Developmental Craniofacial Anthropometry

    E-Print Network [OSTI]

    Chung, Moo K.

    ORIGINAL COMMUNICATION Developmental Craniofacial Anthropometry: Assessment of Race Effects REID B. Key words: race; anthropometry; craniofacial; vocal tract; pharynx; imaging; development INTRODUCTION

  3. HARD X-RAY AND MICROWAVE EMISSIONS FROM SOLAR FLARES WITH HARD SPECTRAL INDICES

    SciTech Connect (OSTI)

    Kawate, T. [Kwasan and Hida Observatory, Kitashirakawa-oiwakecho, Sakyo, Kyoto 606-8502 (Japan); Nishizuka, N. [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 229-8510 (Japan); Oi, A. [College of Science, Ibaraki University, Mito, Ibaraki 310-8512 (Japan); Ohyama, M. [Faculty of Education, Shiga University, 2-5-1 Hiratsu, Otsu, Shiga 1-1, Baba Hikone city, Siga 522-8522 (Japan); Nakajima, H., E-mail: kawate@kusastro.kyoto-u.ac.jp [Nobeyama Solar Radio Observatory, NAOJ, Nobeyama, Minamisaku, Nagano 384-1305 (Japan)

    2012-03-10

    We analyze 10 flare events that radiate intense hard X-ray (HXR) emission with significant photons over 300 keV to verify that the electrons that have a common origin of acceleration mechanism and energy power-law distribution with solar flares emit HXRs and microwaves. Most of these events have the following characteristics. HXRs emanate from the footpoints of flare loops, while microwaves emanate from the tops of flare loops. The time profiles of the microwave emission show delays of peak with respect to those of the corresponding HXR emission. The spectral indices of microwave emissions show gradual hardening in all events, while the spectral indices of the corresponding HXR emissions are roughly constant in most of the events, though rather rapid hardening is simultaneously observed in some for both indices during the onset time and the peak time. These characteristics suggest that the microwave emission emanates from the trapped electrons. Then, taking into account the role of the trapping of electrons for the microwave emission, we compare the observed microwave spectra with the model spectra calculated by a gyrosynchrotron code. As a result, we successfully reproduce the eight microwave spectra. From this result, we conclude that the electrons that have a common acceleration and a common energy distribution with solar flares emit both HXR and microwave emissions in the eight events, though microwave emission is contributed to by electrons with much higher energy than HXR emission.

  4. The RTMS (Remote Traffic Microwave Sensor) unit is a traffic sensor which uses microwave signals to detect vehicles. Unlike sensors which use the Doppler effect, this sensor

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    1 RTMS The RTMS (Remote Traffic Microwave Sensor) unit is a traffic sensor which uses microwave counter unit. Additional items for deployment include solar panel, batteries and modem with cellular dimly. The LED is bright only when data is being downloaded from it. Solar Panel The solar panel

  5. Near-Field Based Communication and Electrical Systems

    E-Print Network [OSTI]

    Azad, Umar

    2013-01-01

    on near-field communication system performance", IEEEcoupled near field communication system”, IEEE Internationaltransfer and inductive communication systems," Progress in

  6. Single Channel Estimation Algorithm for Acoustic OFDM Communication Systems

    E-Print Network [OSTI]

    Lin, David; Barbieri, Alan; Mitra, Urbashi

    2007-01-01

    for Acoustic OFDM Communication Systems David Lin, Alanultrawideband communication System Hardware Hardwaremultiple-output systems underwater acoustic communication

  7. Communication devices for network-hopping communications and methods of network-hopping communications

    DOE Patents [OSTI]

    Buttles, John W. (Idaho Falls, ID)

    2011-12-20

    Wireless communication devices include a software-defined radio coupled to processing circuitry. The processing circuitry is configured to execute computer programming code. Storage media is coupled to the processing circuitry and includes computer programming code configured to cause the processing circuitry to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.

  8. Communication devices for network-hopping communications and methods of network-hopping communications

    DOE Patents [OSTI]

    Buttles, John W

    2013-04-23

    Wireless communication devices include a software-defined radio coupled to processing circuitry. The system controller is configured to execute computer programming code. Storage media is coupled to the system controller and includes computer programming code configured to cause the system controller to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.

  9. Increasing security in inter-chip communication

    DOE Patents [OSTI]

    Edwards, Nathan J; Hamlet, Jason; Bauer, Todd; Helinski, Ryan

    2014-10-28

    An apparatus for increasing security in inter-chip communication includes a sending control module, a communication bus, and a receiving control module. The communication bus is coupled between the sending control module and the receiving control module. The sending control module operates to send data on the communication bus, disable the communication bus when threats are detected, or both.

  10. IIT Lewis College of Human Sciences COMMUNICATION

    E-Print Network [OSTI]

    Heller, Barbara

    IIT Lewis College of Human Sciences COMMUNICATION As a student in the Communication program at IIT and Business, or Professional and Technical Communication. We live in a world where the modes of communication to focusing on one medium such as TV, radio, or print, as many communication programs do. We are one

  11. Lundberg et. al) Communication Problems in Crisis Response Communication Problems in Crisis Response

    E-Print Network [OSTI]

    Lundberg et. al) Communication Problems in Crisis Response Communication Problems in Crisis Universitet mikael.asplund@liu.se ABSTRACT This paper describes five problem areas of communication that occur during crisis response. These areas are communication infrastructure, situation awareness, individual

  12. Kinetics of the carbon monoxide oxidation reaction under microwave heating

    SciTech Connect (OSTI)

    Perry, W.L.; Katz, J.D.; Rees, D.; Paffett, M.T. [Los Alamos National Lab., NM (United States); Datye, A. [Univ. of New Mexico, Albuquerque, NM (United States)

    1996-06-01

    915 MHz microwave heating has been used to drive the CO oxidation reaction over Pd/Al{sub 2}O{sub 3} with out significantly affecting the reaction kinetics. As compared to an identical conventionally heated system, the activation energy, pre-exponential factor, and reaction order with respect to CO were unchanged. Temperature was measured using a thermocouple extrapolation technique. Microwave-induced thermal gradients were found to play a significant role in kinetic observations. The authors chose the CO oxidation reaction over a supported metal catalyst because the reaction kinetics are well known, and because of the diverse dielectric properties of the various elements in the system: CO is a polar molecule, O{sub 2} and CO{sub 2} are non-polar, Al{sub 2}O{sub 3} is a dielectric, and Pt and Pd are conductors.

  13. Dynamic characteristic of intense short microwave propagation in an atmosphere

    SciTech Connect (OSTI)

    Yee, J.H.; Alvarez, R.A.; Mayhall, D.J.; Madsen, N.K.; Cabayan, H.S.

    1983-07-01

    The dynamic behavior of an intense microwave pulse which propagates through the atmosphere will be presented. Our theoretical results are obtained by solving Maxwell's equations, together with the electron fluid equations. Our calculations show that although large portions of the initial energy are absorbed by the electrons that are created through the avalanche process, a significant amount of energy is still able to reach the earth's surface. The amount of energy that reaches the earth's surface as a function of initial energy and wave shape after having propagated through 100 km in the atmosphere are investigated. Results for the air breakdown threshold intensity as a function of the pressure for different pulse widths and different frequencies will also be presented. In addition, we will present a comparison between the theoretical and the experimental results for the pulse shape of a short microwave pulse after it has traveled through a rectangular wave guide which contains a section of air. 23 references, 9 figures.

  14. Microwave measurement of the mass of frozen hydrogen pellets

    DOE Patents [OSTI]

    Talanker, Vera (Golden, CO); Greenwald, Martin (Belmont, MA)

    1990-01-01

    A nondestructive apparatus and method for measuring the mass of a moving object, based on the perturbation of the dielectric character of a resonant microwave cavity caused by the object passing through the cavity. An oscillator circuit is formed with a resonant cavity in a positive feedback loop of a microwave power amplifier. The moving object perturbs the resonant characteristics of the cavity causing a shift in the operating frequency of the oscillator proportional to the ratio of the pellet volume to the volume of the cavity. Signals from the cavity oscillation are mixed with a local oscillator. Then the IF frequency from the mixer is measured thereby providing a direct measurement of pellet mass based upon known physical properties and relationships. This apparatus and method is particularly adapted for the measurement of frozen hydrogen pellets.

  15. Experimental study of the microwave emission from electrons in air

    E-Print Network [OSTI]

    E. Conti; G. Collazuol; G. Sartori

    2014-09-26

    We searched for the emission of microwave radiation in the Ku band generated by a 95 keV electron beam in air. We unequivocally detected the radiation, and measured its yield and angular dependence. Both the emitted power and its angular pattern are well described by a model, where microwave photons are generated via bremsstrahlung in the free-electron atomic-nucleus collisions, during the slowdown of the electrons. As a consequence, the radiation is not isotropic but peaked in the forward direction. The emission yield scales proportionally with the number of electrons. This contrasts a previous claim that the yield scales with the number squared, due to coherence. With a Monte Carlo simulation we extrapolate our results to the Ultra High Energy Cosmic Ray energy range.

  16. Microwave Signature of Relativistic Positrons in Solar Flares

    E-Print Network [OSTI]

    Fleishman, Gregory; Meshalkina, Nataliia

    2013-01-01

    Relativistic antiparticles can be created in high-energy nuclear interactions; thus, detection of antiparticles in an astrophysical source can tell us something remarkable about the underlying high-energy processes and nuclear interactions. However, once created, the antiparticles remain a minor fraction of their conjugant normal particles, so the detection of the antiparticles represents a big science challenge. To address this challenge we employ imaging and polarimetry of microwave radiation produced as the positrons gyrate in the ambient magnetic field. The key property of the radiation used in this method is that the oppositely charged particles, electrons and positrons, produce radiation with opposite helicity, easily distinguishable by currently operating radio facilities. Analysis of available spatially resolved microwave data augmented by independent magnetic field measurements allows us to remotely detect the relativistic positron component in several solar flares.

  17. Slow Magnetoacoustic Oscillations in the Microwave Emission of Solar Flares

    E-Print Network [OSTI]

    Kim, Sujin; Shibasaki, K

    2013-01-01

    Analysis of the microwave data, obtained in the 17 GHz channel of the Nobeyama Radioheliograph during the M1.6 flare on 4th Nov 2010, revealed the presence of 11.8-min oscillations of the emitting plasma density. The oscilla- tions decayed with the characteristic time of about 25-min. These oscillations are also well-seen in the variation of EUV emission intensity measured in the 335 A channel of SDO/AIA. The observed properties of the oscillations are consistent with the properties of so-called SUMER oscillations, observed in the EUV and soft X-ray bands usually as a periodic Doppler shift. The accepted interpretation of SUMER oscillations is a standing slow magnetoacoustic wave. Our analysis presents the first direct observation of the slow magnetoacoustic oscillations in the microwave emission of a solar flare.

  18. Critical operating parameters for microwave solidification of hydroxide sludge

    SciTech Connect (OSTI)

    Sprenger, G.S.; Eschen, V.G.

    1993-08-01

    Engineers at the Rocky Flats Plant (RFP) have developed an innovative technology for the treatment of homogeneous wet or dry solids which are contaminated with hazardous and/or radioactive materials. The process uses microwave energy to heat and melt the waste into a vitreous final form that is suitable for land disposal. The advantages include a high density, leach resistant, robust waste form; volume and toxicity reduction; favorable economics; in-container treatment; favorable public acceptance; isolated equipment; and instantaneous energy control. Regulatory certification of the final form is accomplished by meeting the limitation specified in EPA`s Toxicity Characteristic Leach Procedure (TCLP). This paper presents the results from a series of TCLP tests performed on a surrogate hydroxide coprecipitation sludge spiked with heavy metals at elevated concentrations. The results are very encouraging and support RFP`s commitment to the use of microwave technology for treatment of various mixed waste streams.

  19. Strength distributions and symmetry breaking in coupled microwave billiards

    E-Print Network [OSTI]

    B. Dietz. T. Guhr; H. L. Harney; A. Richter

    2006-06-14

    Flat microwave cavities can be used to experimentally simulate quantum mechanical systems. By coupling two such cavities, we study the equivalent to the symmetry breaking in quantum mechanics. As the coupling is tunable, we can measure resonance strength distributions as a function of the symmetry breaking. We analyze the data employing a qualitative model based on Random Matrix Theory (RMT) and show that the results derived from the strength distribution are consistent with those previously obtained from spectral statistics.

  20. Microwave Emission from Hybridized States in a Semiconductor Charge Qubit

    E-Print Network [OSTI]

    A. Stockklauser; V. F. Maisi; J. Basset; K. Cujia; C. Reichl; W. Wegscheider; T. Ihn; A. Wallraff; K. Ensslin

    2015-08-24

    We explore the microwave radiation emitted from a biased double quantum dot due to the inelastic tunneling of single charges. Radiation is detected over a broad range of detuning configurations between the dot energy levels with pronounced maxima occurring in resonance with a capacitively coupled transmission line resonator. The power emitted for forward and reverse resonant detuning is found to be in good agreement with a rate equation model, which considers the hybridization of the individual dot charge states.

  1. Effect of microwave radiation on Jayadhar cotton fibers: WAXS studies

    SciTech Connect (OSTI)

    Niranjana, A. R., E-mail: arnphysics@gmail.com; Mahesh, S. S., E-mail: arnphysics@gmail.com; Divakara, S., E-mail: arnphysics@gmail.com; Somashekar, R., E-mail: arnphysics@gmail.com [Department of Studies in Physics, University of Mysore, Mysore-570006 (India)

    2014-04-24

    Thermal effect in the form of micro wave energy on Jayadhar cotton fiber has been investigated. Microstructural parameters have been estimated using wide angle x-ray scattering (WAXS) data and line profile analysis program developed by us. Physical properties like tensile strength are correlated with X-ray results. We observe that the microwave radiation do affect significantly many parameters and we have suggested a multivariate analysis of these parameters to arrive at a significant result.

  2. Microwave plasma CVD of NANO structured tin/carbon composites

    DOE Patents [OSTI]

    Marcinek, Marek (Warszawa, PL); Kostecki, Robert (Lafayette, CA)

    2012-07-17

    A method for forming a graphitic tin-carbon composite at low temperatures is described. The method involves using microwave radiation to produce a neutral gas plasma in a reactor cell. At least one organo tin precursor material in the reactor cell forms a tin-carbon film on a supporting substrate disposed in the cell under influence of the plasma. The three dimensional carbon matrix material with embedded tin nanoparticles can be used as an electrode in lithium-ion batteries.

  3. Controlled synthesis of novel octapod platinum nanocrystals under microwave irradiation

    SciTech Connect (OSTI)

    Dai, Lei; Chi, Quan; Zhao, Yanxi; Liu, Hanfan; Zhou, Zhongqiang; Li, Jinlin; Huang, Tao

    2014-01-01

    Graphical abstract: Under microwave irradiation, novel octapod Pt nanocrystals were synthesized by reducing H{sub 2}PtCl{sub 6} in TEG with PVP as a stabilizer. The as-prepared Pt nanocrystals displayed a unique octapod nanostructure with five little mastoids in each concave center. The use of KI was crucial to the formation of novel Pt octapods. Novel Octapod Platinum Nanocrystals. - Highlights: • A novel octapod Pt nanocrystals different from the common octapod were obtained. • The use of KI was crucial to the formation of the novel Pt octapods. • Microwave was readily employed in controlled synthesis of the novel Pt octapods. - Abstract: Microwave was employed in the shape-controlled synthesis of Pt nanoparticles. Novel octapod Pt nanocrystals enclosed with (1 1 1) facets were readily synthesized with H{sub 2}PtCl{sub 6} as a precursor, tetraethylene glycol (TEG) as both a solvent and a reducing agent, polyvinylpyrrolidone (PVP) as a stabilizer in the presence of an appropriate amount of KI under microwave irradiation for 140 s. The as-prepared Pt nanocrystals displayed a unique octapod nanostructure with five little mastoids in each concave center and exhibited higher electrocatalytic activity than commercial Pt black in the electro-oxidations of methanol and formic acid. The results demonstrated that the use of KI was crucial to the formation of Pt octapods. KI determined the formation of the novel octapod Pt nanocrystals by tuning up the reduction kinetics and adsorbing on the surfaces of growing Pt nanoparticles. The optimum molar ratio of H{sub 2}PtCl{sub 6}/KI/PVP was 1/30/45.

  4. Constraining fundamental physics with the cosmic microwave background

    E-Print Network [OSTI]

    Anthony Challinor

    2006-06-22

    The temperature anisotropies and polarization of the cosmic microwave background (CMB) radiation provide a window back to the physics of the early universe. They encode the nature of the initial fluctuations and so can reveal much about the physical mechanism that led to their generation. In this contribution we review what we have learnt so far about early-universe physics from CMB observations, and what we hope to learn with a new generation of high-sensitivity, polarization-capable instruments.

  5. Rydberg Atoms Ionisation by Microwave Field and Electromagnetic Pulses

    E-Print Network [OSTI]

    B. Kaulakys; G. Vilutis

    1995-04-10

    A simple theory of the Rydberg atoms ionisation by electromagnetic pulses and microwave field is presented. The analysis is based on the scale transformation which reduces the number of parameters and reveals the functional dependencies of the processes. It is shown that the observed ionisation of Rydberg atoms by subpicosecond electromagnetic pulses scale classically. The threshold electric field required to ionise a Rydberg state may be simply evaluated in the photonic basis approach for the quantum dynamics or from the multiphoton ionisation theory.

  6. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden L A N S U N A study of epidemic content distribution characteristic with social relationship evaluation Epidemic relationship evaluation Lan Sun Master of Science Thesis Communication Systems School of Information

  7. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden M U H A M M A D U M A I R Performance Evaluation and Elastic Scaling of an IP Multimedia Subsystem Implemented in a Cloud KTH Information and Communication Technology #12;Performance Evaluation and Elastic Scaling

  8. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    project is to analyze and evaluate the level of performance, from the network point of view, that canDegree project in Communication Systems Communication Systems, 30.0 HEC Stockholm, Sweden I S A A C test this approach in a real environment, a prior providers' survey was utilized to evaluate

  9. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems First level, 15.0 HEC Stockholm, Sweden M A R I A M A G N U S S O N LAN and WLAN planning, deployment, and evaluation KTH Information and Communication Technology #12;Bachelor of Science Thesis LAN and WLAN planning, deployment, and evaluation Maria Magnusson

  10. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden Z H A N G Y UA N H U I Evaluating a publish/subscribe proxy for HTTP KTH Information and Communication Technology #12;Evaluating a publish/subscribe proxy for HTTP Zhang Yuanhui yuanhui@kth.se 2013.04.20 Examiner & Supervisor

  11. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden A N A N D K A N N A N Performance evaluation of security mechanisms in Cloud Networks KTH Information and Communication Technology #12;Performance evaluation of security mechanisms in Cloud Networks Anand Kannan 30th July - 2012

  12. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    for instrumentation (PXI) modules. The main objective of this project is to evaluate how different PXI modules workDegree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden W I L LY W A N G Evaluating the use of PXI modules in tests of a radio base station KTH Information and Communication

  13. Wireless Communications Device Policy & Procedures

    E-Print Network [OSTI]

    Wireless Communications Device Policy & Procedures Effective Date: October 1, 2012 Page 1 Revised staff eligibility for a wireless communication device b. Define the process for obtaining a wireless Wireless devices and plans will be provided by StFX for the following employees: 1. President, Vice

  14. Broadband Wireless Communication in an

    E-Print Network [OSTI]

    Kansas, University of

    Broadband Wireless Communication in an Occupied Frequency Band Dragan Trajkov Joseph Evans James. Project Sponsor: Sprint Corporation Technical Report The University of Kansas #12;1 ABSTRACT The wireless for wireless communications may be insufficient. This report shows a study of how two different systems can use

  15. Method for heat treating and sintering metal oxides with microwave radiation

    DOE Patents [OSTI]

    Holcombe, Cressie E. (Farragut, TN); Dykes, Norman L. (Oak Ridge, TN); Meek, Thomas T. (Knoxville, TN)

    1989-01-01

    A method for microwave sintering materials, primarily metal oxides, is described. Metal oxides do not normally absorb microwave radiation at temperatures ranging from about room temperature to several hundred degrees centrigrade are sintered with microwave radiation without the use of the heretofore required sintering aids. This sintering is achieved by enclosing a compact of the oxide material in a housing or capsule formed of a oxide which has microwave coupling properties at room temprature up to at least the microwave coupling temperature of the oxide material forming the compact. The heating of the housing effects the initial heating of the oxide material forming the compact by heat transference and then functions as a thermal insulator for the encased oxide material after the oxide material reaches a sufficient temperature to adequately absorb or couple with microwave radiation for heating thereof to sintering temperature.

  16. Microwave processing of silicon carbide. CRADA final report

    SciTech Connect (OSTI)

    Kimrey, H.D.; Kiggans, J.O. [Oak Ridge National Lab., TN (United States); Ness, E.A.; Rafaniello, W. [Dow Chemical Co., Midland, MI (United States)

    1998-02-01

    A Cooperative Research and Development Agreement (CRADA) between Lockheed Martin Energy Systems, Inc. (LMES) and Dow Chemical Company was initiated on May 3, 1993. (Lockheed Martin Energy Research Inc. (LMER) replaced LMES). The completion date for the Agreement was December 1996. The purpose of this project is to develop microwave processing techniques to produce superior silicon carbide. Sintered silicon carbide is an attractive material for use in high-stress, high-temperature, high-wear, or highly corrosive applications. However, use in these applications has been hampered by a lack of consistency in strength, density, and other physical properties. It is proposed that the enhanced sintering that has been achieved using microwaves in oxide and halide systems be applied to the sintering of these materials to produce a more highly controlled density and microstructure. This will, in turn, increase the strength and Weibull modulus of the sintered body. The use of microwave energy to anneal for a moderate temperature (1,400--1,600 C) anneal in a high vacuum (< 10{sup {minus}4} Torr) results in an improvement in the sintered density and density distribution. These changes in turn result in improved properties of the sintered compacts. Further, scale up of the process has resulted in the routine production of 3 kg components in excess of 4 cm in thickness.

  17. Microwave magnetic dynamics in highly conducting magnetic nanostructures

    SciTech Connect (OSTI)

    Kostylev, M.; Ivanov, E.; Samarin, S. [School of Physics M013, The University of Western Australia, Crawley, WA 6009 (Australia); Ding, J.; Adeyeye, A. O. [Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576 (Singapore)

    2014-05-07

    We performed low-noise broadband microstrip ferromagnetic resonance (FMR) measurements of the resonant modes of an array of metallic ferromagnetic nanostripes. In addition to a strong signal of the fundamental mode, we observed up to five weak-amplitude peaks in the field-resolved FMR traces, depending on the frequency. These higher-order absorption peaks have been theoretically identified as due to resonant excitation of odd and even standing spin waves across the direction of confinement in array plane (i.e., across the stripe width). The theory we developed suggests that the odd modes become excited in the spatially uniform microwave field of the FMR setup due to the large conductivity of metals. This promotes excitation of large-amplitude eddy currents in the sample by the incident microwave magnetic field and ultimately results in excitation of these modes. Following this theory, we found that the eddy current contribution is present only for patterned materials and when the microwave magnetic field is incident on one surface of sample surface, as it is in the case of a microstrip FMR.

  18. A microwave tomography system using a tunable mirror for beam steering

    SciTech Connect (OSTI)

    Tayebi, A. [Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824 (United States); Non-Destructive Evaluation Laboratory, Michigan State University, East Lansing, MI 48824 (United States); Department of Physic (United States); Tang, J. [Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824 (United States); Paladhi, P. Roy; Udpa, L.; Udpa, S. [Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824 (United States); Non-Destructive Evaluation Laboratory, Michigan State University, East Lansing, MI 48824 (United States)

    2014-02-18

    Microwave tomography is a fast-growing technique in the fields of NDE and medical industry. This paper presents a new microwave tomography system which reduces the complexities of conventional microwave imaging systems by utilizing a reconfigurable mirror, a tunable reflectarray antenna. In order to build a tunable reflectarray with beam steering capabilities, the unit cell characteristics should dynamically alter. Modelling and experimental results of a single unit cell are presented in this work.

  19. HARD X-RAY AND MICROWAVE FLUX SPECTRA OF THE 2 NOVEMBER 1991 SOLAR FLARE

    E-Print Network [OSTI]

    HARD X-RAY AND MICROWAVE FLUX SPECTRA OF THE 2 NOVEMBER 1991 SOLAR FLARE CHIK-YIN LEE1,2 and HAIMIN analysed the hard X-ray and microwave flux spectra of the solar flare (BATSE No. 1791) on 2 November 1991 for this study. This paper studies the hard X-ray and microwave spectra of the solar flare on 2 November 1991

  20. Modeling Multimodal Communication as a Complex System

    E-Print Network [OSTI]

    Thórisson, Kristinn Rúnar

    Modeling Multimodal Communication as a Complex System Kristinn R. Thórisson Center for Analysis of their interactions. Embodied natural communication belongs to this class of systems, encompassing many cognitive. Keywords: Multimodal realtime communication, computational model, complex natural system, heterogeneous

  1. A Communication Backend for Parallel Language Compilers

    E-Print Network [OSTI]

    Shewchuk, Jonathan

    A Communication Backend for Parallel Language Compilers James M. Stichnoth and Thomas Gross Carnegie Mellon University Abstract. Generating good communication code is an important issue for all system usually implement the communication generation routines (e.g., message buffer packing

  2. UC San Diego Department of Communication

    E-Print Network [OSTI]

    UC San Diego Department of Communication Major Requirements 13 Division Course CORE COURSE · COMM 10: Introduction to Communication 12 Upper). For more information, visit our website: communication.ucsd.edu Note

  3. Communication Robert H. Wortham, Joanna J. Bryson

    E-Print Network [OSTI]

    Bryson, Joanna J.

    Communication Robert H. Wortham, Joanna J. Bryson November 27, 2014 1 Introduction: Scope of Chapter From a traditional engineering perspective, communication is about effecting control over, distributed systems. Human communication also employs the exceptional capacity of language, but robot

  4. Communication-avoiding Krylov subspace methods

    E-Print Network [OSTI]

    Hoemmen, Mark

    2010-01-01

    3.1.3 Avoiding communication in Arnoldi . . . . .CONTENTS iii 3 Communication-avoiding Arnoldi and GMRES 3.1CA-Lanczos . . 5 Communication-avoiding CG 5.1 Conjugate

  5. A theory of goal-oriented communication

    E-Print Network [OSTI]

    Goldreich, Oded

    We put forward a general theory of goal-oriented communication, where communication is not an end in itself, but rather a means to achieving some goals of the communicating parties. Focusing on goals provides a framework ...

  6. HYBRID MODELING OF COMMUNICATION NETWORKS USING MODELICA

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    HYBRID MODELING OF COMMUNICATION NETWORKS USING MODELICA Daniel F¨arnqvist Katrin Strandemar and simulation of communication networks using the modeling language Modelica are discussed. Congestion control model, that Modelica provides an efficient platform for the analysis of communication networks

  7. Quantum communication, reference frames and gauge theory

    E-Print Network [OSTI]

    S. J. van Enk

    2006-04-26

    We consider quantum communication in the case that the communicating parties not only do not share a reference frame but use imperfect quantum communication channels, in that each channel applies some fixed but unknown unitary rotation to each qubit. We discuss similarities and differences between reference frames within that quantum communication model and gauge fields in gauge theory. We generalize the concept of refbits and analyze various quantum communication protocols within the communication model.

  8. Assessment of microwave power flow for reflectometry measurements in tokamak plasmas

    E-Print Network [OSTI]

    Gourdain, P-A; Peebles, W. A.

    2008-01-01

    measurements in tokamak plasmas P. -A. Gourdain a , W. A.are widely employed in tokamak fusion plasmas, and are alsoresearch devices, such as tokamaks, microwave reflectometry

  9. Geometry for web microwave heating or drying to a desired profile in a waveguide

    DOE Patents [OSTI]

    Habeger, Jr., Charles C.; Patterson, Timothy F.; Ahrens, Frederick W.

    2005-11-15

    A microwave heater and/or dryer has a nonlinear or curvilinear relative slot profile geometry. In one embodiment, the microwave dryer has at least one adjustable field modifier making it possible to change the geometry of the heater or dryer when drying different webs. In another embodiment, the microwave dryer provides more uniform drying of a web when the field modifier is adjusted in response to a sensed condition of the web. Finally, a method of microwave heating and/or drying a web achieves a uniform heating and/or drying profile.

  10. Experimental study on the emission spectra of microwave plasma at atmospheric pressure

    SciTech Connect (OSTI)

    Zhang, Boya; Wang, Qiang; Zhang, Guixin, E-mail: guixin@mail.tsinghua.edu.cn [Department of Electrical Engineering, Tsinghua University, Beijing 100084 (China); Liao, Shanshan [Department of Electrical Engineering, Tsinghua University, Beijing 100084 (China); Shenzhen Power Supply Co. Ltd., Shenzhen 518000, Guangdong (China)

    2014-01-28

    An experimental study on microwave plasma at atmospheric pressure was conducted by employing optical emission spectroscopy. Based on a microwave plasma generation device developed for nanoparticle synthesis, we studied the influence of input microwave power and gas flow rate on the optical emission behaviors and electron temperature of plasma using Ar, He, and N{sub 2} as working gas, respectively. The physics behind these behaviors was discussed. The results are useful in characterizing microwave plasma at atmospheric pressure and can be used for improving nanoparticle synthesis system for commercial use in the future.

  11. Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources

    DOE Patents [OSTI]

    Alton, G.D.

    1998-11-24

    Microwave injection methods are disclosed for enhancing the performance of existing electron cyclotron resonance (ECR) ion sources. The methods are based on the use of high-power diverse frequency microwaves, including variable-frequency, multiple-discrete-frequency, and broadband microwaves. The methods effect large resonant ``volume`` ECR regions in the ion sources. The creation of these large ECR plasma volumes permits coupling of more microwave power into the plasma, resulting in the heating of a much larger electron population to higher energies, the effect of which is to produce higher charge state distributions and much higher intensities within a particular charge state than possible in present ECR ion sources. 5 figs.

  12. DEVELOPMENT OF RADIO FREQUENCY INTERFERENCE DETECTION ALGORITHMS FOR PASSIVE MICROWAVE REMOTE SENSING

    E-Print Network [OSTI]

    Ruf, Christopher

    DEVELOPMENT OF RADIO FREQUENCY INTERFERENCE DETECTION ALGORITHMS FOR PASSIVE MICROWAVE REMOTE Gross for pretty much building almost everything that this thesis is based on and Darren Mc

  13. Microwave technology for waste management applications including disposition of electronic circuitry

    SciTech Connect (OSTI)

    Wicks, G.G. [Westinghouse Savannah River Co., Aiken, SC (United States); Clark, D.E.; Schulz, R.L.; Folz, D.C. [Univ. of Florida, Gainesville, FL (United States)

    1995-09-01

    Microwave technology is being developed nationally and internationally for a variety of environmental remediation purposes. These efforts include treatment and destruction of a vast array of gaseous, liquid and solid hazardous wastes as well as subsequent immobilization of selected components. Microwave technology provides an important contribution to an arsenal of existing remediation methods that are designed to protect the public and environment from undesirable consequences of hazardous materials. Applications of microwave energy for environmental remediation will be discussed. Emphasized will be a newly developed microwave process designed to treat discarded electronic circuitry and reclaim the precious metals within for reuse.

  14. Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources

    DOE Patents [OSTI]

    Alton, Gerald D. (Kingston, TN)

    1998-01-01

    Microwave injection methods for enhancing the performance of existing electron cyclotron resonance (ECR) ion sources. The methods are based on the use of high-power diverse frequency microwaves, including variable-frequency, multiple-discrete-frequency, and broadband microwaves. The methods effect large resonant "volume" ECR regions in the ion sources. The creation of these large ECR plasma volumes permits coupling of more microwave power into the plasma, resulting in the heating of a much larger electron population to higher energies, the effect of which is to produce higher charge state distributions and much higher intensities within a particular charge state than possible in present ECR ion sources.

  15. Microwave Regenerated DPF for Auxiliary Power Units and Diesel Hybrid Vehicles

    Broader source: Energy.gov [DOE]

    Microwave regeneration of the DPF can be done without diesel fuel or a catalyst in less than 5 minutes with the engine off.

  16. Tags, wireless communication systems, tag communication methods, and wireless communications methods

    DOE Patents [OSTI]

    Scott; Jeff W. (Pasco, WA), Pratt; Richard M. (Richland, WA)

    2006-09-12

    Tags, wireless communication systems, tag communication methods, and wireless communications methods are described. In one aspect, a tag includes a plurality of antennas configured to receive a plurality of first wireless communication signals comprising data from a reader, a plurality of rectifying circuits coupled with. respective individual ones of the antennas and configured to provide rectified signals corresponding to the first wireless communication signals, wherein the rectified signals are combined to produce a composite signal, an adaptive reference circuit configured to vary a reference signal responsive to the composite signal, a comparator coupled with the adaptive reference circuit and the rectifying circuits and configured to compare the composite signal with respect to the reference signal and to output the data responsive to the comparison, and processing circuitry configured to receive the data from the comparator and to process the data.

  17. Memorandum Memorializing Ex Parte Communication, DOE impending...

    Energy Savers [EERE]

    Communication, DOE impending determination of coverage for commercial and industrial fans, blowers, and fume hoods. Memorandum Memorializing Ex Parte Communication, DOE impending...

  18. Marketing and Communications Plan | Department of Energy

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

    Communications Plan Marketing and Communications Plan This is a document from Energy Upgrade California, posted on the website of the U.S. Department of Energy's Better Buildings...

  19. Communication error detection using facial expressions

    E-Print Network [OSTI]

    Wang, Sy Bor, 1976-

    2008-01-01

    Automatic detection of communication errors in conversational systems typically rely only on acoustic cues. However, perceptual studies have indicated that speakers do exhibit visual communication error cues passively ...

  20. NBP RFI: Communications Requirements- Honeywell Responses To...

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

    (e.g., we do not consider communications necessary for phasor measurements, substation SCADA, protective relaying, etc.) NBP RFI: Communications Requirements- Honeywell Responses...