Sample records for irs requirements received

  1. RECEIVED

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.70COMMUNITYResponses:December 11, 2014 PageRDC ReceivesREAP40

  2. Waste Receiving and Packaging, Module 2A, Supplemental Design Requirements Document

    SciTech Connect (OSTI)

    Lamberd, D.L.; Boothe, G.F.; Hinkle, A.L.; Horgos, R.M.; LeClair, M.D.; Nash, C.R.; Ocampo, V.P.; Pauly, T.R.; Stroup, J.L.; Weingardt, K.M.

    1994-04-26T23:59:59.000Z

    The Supplemental Design Requirements Document (SDRD) is used to communicate plant design information from Westinghouse Hanford Company (WHC) to the US Department of Energy (DOE) and the cognizant Architect Engineer (A/E). Information in the SDRD serves two purposes: to convey design requirements that are too detailed for inclusion in a Functional Design Criteria (FDC) report; and to serve as a means of change control for design commitments in the Conceptual Design Report. The mission of WRAP 2A on the Hanford site is the treatment of contact handled low level mixed waste (MW) for final disposal. The overall systems engineering steps used to reach construction and operation of WRAP 2A are depicted in Figure 1. The WRAP 2A SDRD focuses on the requirements to address the functional analysis provided in Figure 1. This information is provided in sections 2 through 5 of this SDRD. The mission analysis and functional analysis are to be provided in a separate supporting document. The organization of sections 2 through 5 corresponds to the requirements identified in the WRAP 2A functional analysis.

  3. PERMIT OR PREREQUISITE OVERRIDE REQUEST FORM Request a PERMIT if you receive a "Permit Required" message when registering.

    E-Print Network [OSTI]

    Gaucher, Eric

    " message when registering. Request a PREREQ OVERRIDE if you receive a "Preq & Test Score Error" message

  4. Coupled optical/thermal/fluid analysis and design requirements for operation and testing of a supercritical CO2 solar receiver.

    SciTech Connect (OSTI)

    Khivsara, Sagar [Indian Institute of Science, Bangalor (India)

    2015-01-01T23:59:59.000Z

    Recent studies have evaluated closed-loop supercritical carbon dioxide (s-CO2) Brayton cycles to be a higher energy-density system in comparison to conventional superheated steam Rankine systems. At turbine inlet conditions of 923K and 25 MPa, high thermal efficiency (~50%) can be achieved. Achieving these high efficiencies will make concentrating solar power (CSP) technologies a competitive alternative to current power generation methods. To incorporate a s-CO2 Brayton power cycle in a solar power tower system, the development of a solar receiver capable of providing an outlet temperature of 923 K (at 25 MPa) is necessary. To satisfy the temperature requirements of a s-CO2 Brayton cycle with recuperation and recompression, it is required to heat s-CO2 by a temperature of ~200 K as it passes through the solar receiver. Our objective was to develop an optical-thermal-fluid model to design and evaluate a tubular receiver that will receive a heat input ~1 MWth from a heliostat field. We also undertook the documentation of design requirements for the development, testing and safe operation of a direct s-CO2 solar receiver. The main purpose of this document is to serve as a reference and guideline for design and testing requirements, as well as to address the technical challenges and provide initial parameters for the computational models that will be employed for the development of s-CO2 receivers.

  5. Received 8 Jul 2014 | Accepted 8 Aug 2014 | Published 19 Sep 2014 Kinetochores require oligomerization of Dam1

    E-Print Network [OSTI]

    Asbury, Chip

    -deficient Dam1 complex is unable to support stable bipolar alignment of sister chromatids, indicating failure oligomerization of Dam1 complex to maintain microtubule attachments against tension and promote biorientation Neil-cell imaging, we find that oligomerization of the Dam1 complex is required for its ability to form microtubule

  6. IR Hot Wave

    SciTech Connect (OSTI)

    Graham, T. B.

    2010-04-01T23:59:59.000Z

    The IR Hot Wave{trademark} furnace is a breakthrough heat treatment system for manufacturing metal components. Near-infrared (IR) radiant energy combines with IR convective heating for heat treating. Heat treatment is an essential process in the manufacture of most components. The controlled heating and cooling of a metal or metal alloy alters its physical, mechanical, and sometimes chemical properties without changing the object's shape. The IR Hot Wave{trademark} furnace offers the simplest, quickest, most efficient, and cost-effective heat treatment option for metals and metal alloys. Compared with other heat treatment alternatives, the IR Hot Wave{trademark} system: (1) is 3 to 15 times faster; (2) is 2 to 3 times more energy efficient; (3) is 20% to 50% more cost-effective; (4) has a {+-}1 C thermal profile compared to a {+-}10 C thermal profile for conventional gas furnaces; and (5) has a 25% to 50% smaller footprint.

  7. Radiation receiver

    DOE Patents [OSTI]

    Hunt, A.J.

    1983-09-13T23:59:59.000Z

    The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles. 5 figs.

  8. Radiation receiver

    DOE Patents [OSTI]

    Hunt, Arlon J. (Oakland, CA)

    1983-01-01T23:59:59.000Z

    The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles.

  9. IRS Contribution Limits and OSU Retirement Programs

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    Impact: OTRS requires contributions on total compensation (salary plus benefits) without regardIRS Contribution Limits and OSU Retirement Programs The OSU Defined Contribution Plan (DCP), (for Revenue Code 401(a). The Internal Revenue Code restrictions on employer-paid contributions make

  10. IR Kuiper Belt Constraints

    E-Print Network [OSTI]

    Teplitz, V L; Anderson, J D; Rosenbaum, D C; Scalise, R J; Wentzler, P; Teplitz, Vigdor L.; Anderson, John D.; Rosenbaum, Doris; Scalise, Randall J.; Wentzler, Paul

    1999-01-01T23:59:59.000Z

    We compute the temperature and IR signal of particles of radius $a$ and albedo $\\alpha$ at heliocentric distance $R$, taking into account the emissivity effect, and give an interpolating formula for the result. We compare with analyses of COBE DIRBE data by others (including recent detection of the cosmic IR background) for various values of heliocentric distance, $R$, particle radius, $a$, and particle albedo, $\\alpha$. We then apply these results to a recently-developed picture of the Kuiper belt as a two-sector disk with a nearby, low-density sector (40IR spectra for various parameter v...

  11. Simultaneous multi-beam planar array IR (pair) spectroscopy

    DOE Patents [OSTI]

    Elmore, Douglas L.; Rabolt, John F.; Tsao, Mei-Wei

    2005-09-13T23:59:59.000Z

    An apparatus and method capable of providing spatially multiplexed IR spectral information simultaneously in real-time for multiple samples or multiple spatial areas of one sample using IR absorption phenomena requires no moving parts or Fourier Transform during operation, and self-compensates for background spectra and degradation of component performance over time. IR spectral information and chemical analysis of the samples is determined by using one or more IR sources, sampling accessories for positioning the samples, optically dispersive elements, a focal plane array (FPA) arranged to detect the dispersed light beams, and a processor and display to control the FPA, and display an IR spectrograph. Fiber-optic coupling can be used to allow remote sensing. Portability, reliability, and ruggedness is enhanced due to the no-moving part construction. Applications include determining time-resolved orientation and characteristics of materials, including polymer monolayers. Orthogonal polarizers may be used to determine certain material characteristics.

  12. Models for Multiband IR Surveys

    E-Print Network [OSTI]

    Cong Xu; Carol J. Lonsdale; David L. Shupe; JoAnn O'Linger; Frank Masci

    2001-07-08T23:59:59.000Z

    Empirical 'backward' galaxy evolution models for IR-bright galaxies are constrained using multiband IR surveys. A new Monte-Carlo algorithm is developed for this task. It exploits a large library of realistic Spectral Energy Distributions (SEDs) of 837 local IR galaxies (IRAS 25$\\mu m$ selected) from the UV (1000{\\AA}) to the radio (20cm), including ISO-measured 3--13$\\mu m$ unidentified broad features (UIBs). The basic assumption is that the local correlation between SEDs and Mid-Infrared (MIR) luminosities can be applied to earlier epochs of the Universe. Three populations of IR sources are considered in the evolution models. These include (1) starburst galaxies, (2) normal late-type galaxies, and (3) galaxies with AGN. A set of models so constructed are compared with data from the literature. Predictions for number counts, confusion limits, redshift distributions, and color-color diagrams are made for multiband surveys using the upcoming SIRTF satellite.

  13. Solar heat receiver

    DOE Patents [OSTI]

    Hunt, Arlon J. (Oakland, CA); Hansen, Leif J. (Berkeley, CA); Evans, David B. (Orinda, CA)

    1985-01-01T23:59:59.000Z

    A receiver for converting solar energy to heat a gas to temperatures from 700.degree.-900.degree. C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

  14. Solar heat receiver

    DOE Patents [OSTI]

    Hunt, A.J.; Hansen, L.J.; Evans, D.B.

    1982-09-29T23:59:59.000Z

    A receiver is described for converting solar energy to heat a gas to temperatures from 700 to 900/sup 0/C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

  15. US-LARP Progress on LHC IR Upgrades Tanaji Sen, John Johnstone, Nikolai Mokhov, FNAL, Batavia, IL 60510

    E-Print Network [OSTI]

    Sen, Tanaji

    of a long-range interaction on the beams. IR DESIGNS Design and construction of next generation IR magnets in determining these parameters. The required field quality is another key input to the magnet designers. An IR to higher luminosity. In the designs to be presented here, we consider the inner triplet magnets

  16. Data-fusion receiver

    DOE Patents [OSTI]

    Gabelmann, Jeffrey M.; Kattner, J. Stephen; Houston, Robert A.

    2006-12-19T23:59:59.000Z

    This invention is an ultra-low frequency electromagnetic telemetry receiver which fuses multiple input receive sources to synthesize a decodable message packet from a noise corrupted telemetry message string. Each block of telemetry data to be sent to the surface receiver from a borehole tool is digitally encoded into a data packet prior to transmission. The data packet is modulated onto the ULF EM carrier wave and transmitted from the borehole to the surface and then are simultaneously detected by multiple receive sensors disbursed within the rig environment. The receive sensors include, but are not limited to, electric field and magnetic field sensors. The spacing of the surface receive elements is such that noise generators are unequally coupled to each receive element due to proximity and/or noise generator type (i.e. electric or magnetic field generators). The receiver utilizes a suite of decision metrics to reconstruct the original, non noise-corrupted data packet from the observation matrix via the estimation of individual data frames. The receiver will continue this estimation process until: 1) the message validates, or 2) a preset "confidence threshold" is reached whereby frames within the observation matrix are no longer "trusted".

  17. CUNY EXPORT CONTROL PROCEDURES 17. Shipping/Receiving

    E-Print Network [OSTI]

    Rosen, Jay

    CUNY EXPORT CONTROL PROCEDURES 17. Shipping/Receiving This Section addresses the process for shipping and receiving tangible items under export license/authorization, transmission of export data. General Shipping and Receiving CUNY requires that Campus Shipping/Receiving personnel evaluate, for export

  18. Theoretical studies of Ir5Th and Ir5Ce nanoscale precipitates in Ir

    SciTech Connect (OSTI)

    Morris, James R [ORNL] [ORNL; Averill, Frank [ORNL] [ORNL; Cooper, Valentino R [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Experimentally, it is known that very small amounts of thorium and/or cerium added to iridium metal form a precipitate, Ir5Th / Ir5Ce, which improves the high temperature mechanical properties of the resulting alloys. We demonstrate that there are low-energy configurations for nano-scale precipitates of these phases in Ir, and that these coherent arrangements may assist in producing improved mechanical properties. One precipitate/matrix orientation gives a particularly low interfacial energy, and a low lattice misfit. Nanolayer precipitates with this orientation are found to be likely to form, with little driving force to coarsen. The predicted morphology of the precipitates and their orientation with the matrix phase provide a potential experiment that could be used to test these predictions.

  19. Your FAFSA and the IRS Data Retrieval Tool What is the IRS Data Retrieval Tool?

    E-Print Network [OSTI]

    Moore, Paul A.

    Your FAFSA and the IRS Data Retrieval Tool What is the IRS Data Retrieval Tool? The U.S. Department of Education and the Internal Revenue Service (IRS) have collaborated to develop a tool that simplifies the completion of the FAFSA application. The IRS Data Retrieval tool allows FAFSA applicants and parents

  20. Central solar energy receiver

    DOE Patents [OSTI]

    Drost, M. Kevin (Richland, WA)

    1983-01-01T23:59:59.000Z

    An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

  1. Carbon nanotube IR detectors (SV)

    SciTech Connect (OSTI)

    Leonard, F. L.

    2012-03-01T23:59:59.000Z

    Sandia National Laboratories (Sandia) and Lockheed Martin Corporation (LMC) collaborated to (1) evaluate the potential of carbon nanotubes as channels in infrared (IR) photodetectors; (2) assemble and characterize carbon nanotube electronic devices and measure the photocurrent generated when exposed to infrared light;(3) compare the performance of the carbon nanotube devices with that of traditional devices; and (4) develop and numerically implement models of electronic transport and opto-electronic behavior of carbon nanotube infrared detectors. This work established a new paradigm for photodetectors.

  2. Multichannel homodyne receiver

    DOE Patents [OSTI]

    Landt, J.A.

    1981-01-19T23:59:59.000Z

    A homodyne radar transmitter/receiver device which produces a single combined output which contains modulated backscatter information for all phase conditions of both modulated and unmodulated backscatter signals is described. The device utilizes taps along coaxial transmission lines, strip transmission line, and waveguides which are spaced by 1/8 wavelength or 1/6 wavelength, etc. This greatly reduces costs by eliminating separate transmission and reception antennas and an expensive arrangement of power splitters and mixers utilized in the prior art.

  3. Multichannel homodyne receiver

    DOE Patents [OSTI]

    Landt, Jeremy A. (Los Alamos, NM)

    1982-01-01T23:59:59.000Z

    A homodyne radar transmitter/receiver device which produces a single combined output which contains modulated backscatter information for all phase conditions of both modulated and unmodulated backscatter signals. The device utilizes taps along coaxial transmission lines, strip transmission line, and waveguides which are spaced by 1/8 wavelength or 1/6 wavelength, etc. This greatly reduces costs by eliminating separate transmission and reception antennas and an expensive arrangement of power splitters and mixers utilized in the prior art.

  4. Water Dynamics in Salt Solutions Studied with Ultrafast Two-Dimensional Infrared (2D IR)

    E-Print Network [OSTI]

    Fayer, Michael D.

    Water Dynamics in Salt Solutions Studied with Ultrafast Two-Dimensional Infrared (2D IR RECEIVED ON FEBRUARY 3, 2009 C O N S P E C T U S Water is ubiquitous in nature, but it exists as pure water infrequently. From the ocean to biology, water molecules interact with a wide variety of dissolved species

  5. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, T.E.

    1994-09-06T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, [+-] UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals. 16 figs.

  6. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1996-01-01T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, .+-.UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals.

  7. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-06-04T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, {+-}UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals. 21 figs.

  8. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1994-01-01T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, .+-.UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals.

  9. MID-INFRARED IRS SPECTROSCOPY OF NGC 7331: A FIRST LOOK AT THE SPITZER INFRARED NEARBY GALAXIES SURVEY (SINGS) LEGACY

    E-Print Network [OSTI]

    Draine, Bruce T.

    MID-INFRARED IRS SPECTROSCOPY OF NGC 7331: A FIRST LOOK AT THE SPITZER INFRARED NEARBY GALAXIES to 38 m using all modules of Spitzer's Infrared Spectrograph (IRS). A strong new dust emission feature with standard photodissociation region (PDR) models. Either additional PDR heating or shocks are required

  10. Kazakhstan receiving acreage applications

    SciTech Connect (OSTI)

    Not Available

    1995-01-09T23:59:59.000Z

    Kazakhstan is receiving applications for exploration and development rights to large tracts in the central and eastern parts of the republic. The program is part of a country-wide effort to attract more foreign investigators to help underwrite massive industrial privatization aimed at revitalizing Kazakhstan's economy. A delegation of Kazakh officials visited Houston the last week in November to publicize petroleum opportunities in the republic and appeared Dec. 1--2 at a conference to present an overview of Kazakhstan's petroleum prospectivity. Officials also reviewed recently approved legal, financial, and environmental legislation intended to improve the attractiveness of investing in Kazakhstan's energy sector. This paper discusses the status of development, gives a geologic overview, and highlights the geology of the South Torgay and Teniz basins.

  11. High-temperature ceramic receivers

    SciTech Connect (OSTI)

    Jarvinen, P. O.

    1980-01-01T23:59:59.000Z

    An advanced ceramic dome cavity receiver is discussed which heats pressurized gas to temperatures above 1800/sup 0/F (1000/sup 0/C) for use in solar Brayton power systems of the dispersed receiver/dish or central receiver type. Optical, heat transfer, structural, and ceramic material design aspects of the receiver are reported and the development and experimental demonstration of a high-temperature seal between the pressurized gas and the high-temperature silicon carbide dome material is described.

  12. Stretching and bending with flexible FT-IR process monitors, probes and software

    SciTech Connect (OSTI)

    Peters, D.C. [KVB/Analect, Utica, NY (United States)

    1995-12-31T23:59:59.000Z

    FT-IR process analyzers continue to gain recognition for reliable and accurate on-line analyses on a broad variety of processes around the world. When fast analyses are required, on-line FT-IR analyzers offer speed and specificity for many applications. The use of FT-IR spectroscopy, either in the Mid-IR region or Near IR region offers fundamental advantages over other technologies. These advantages make calibrations exceptionally stable for an analyzer over time and offer improved ease of calibration transfer between similar analyzers. Spectral region selection criteria are reviewed, to help define when to use the Mid-IR region or the Near-IR region (or even when to use parts of both) for a given sample stream. New fiber optic sampling probes for transmission, attenuated total reflection, diffuse reflection and web sensing have solved nagging problems. What many process analyzer specialists are discovering is that new probes are becoming available each month, offering newer process tolerance (can tolerate higher temp or pressure) or even new sampling approaches altogether. This paper describes on-line applications in pharmaceuticals, specialty chemicals, polymer production and refinery production which demonstrate the range of techniques used to appropriately optimize the on-line analyzer. In addition, calibration transfer issues will be discussed, demonstrating the importance of the software tools to help sort out the causes for cal errors (spectral contamination, etc.).

  13. Remote Control and Receiver-Transceiver Specifications and

    E-Print Network [OSTI]

    Rajamani, Sriram K.

    Remote Control and Receiver- Transceiver Specifications and Requirements for Windows Media Center hardware vendors (IHVs) and PC OEM partners who want to create remote control and receiver device combinations that decode input from the remote control for Windows Media Center. This document provides details

  14. IRS Data Retrieval Tool 2012-2013 FAFSA

    E-Print Network [OSTI]

    Russell, Lynn

    1 IRS Data Retrieval Tool 2012-2013 FAFSA Financial Aid Office University of California, San Diego #12;2 What is the IRS Data Retrieval Tool? · The IRS Retrieval Tool gives FAFSA applicants and parents the ability to transfer their data from the IRS to the FAFSA · The Retrieval Tool saves time and increases

  15. UWB delay and multiply receiver

    DOE Patents [OSTI]

    Dallum, Gregory E.; Pratt, Garth C.; Haugen, Peter C.; Romero, Carlos E.

    2013-09-10T23:59:59.000Z

    An ultra-wideband (UWB) delay and multiply receiver is formed of a receive antenna; a variable gain attenuator connected to the receive antenna; a signal splitter connected to the variable gain attenuator; a multiplier having one input connected to an undelayed signal from the signal splitter and another input connected to a delayed signal from the signal splitter, the delay between the splitter signals being equal to the spacing between pulses from a transmitter whose pulses are being received by the receive antenna; a peak detection circuit connected to the output of the multiplier and connected to the variable gain attenuator to control the variable gain attenuator to maintain a constant amplitude output from the multiplier; and a digital output circuit connected to the output of the multiplier.

  16. RECEIVED

    Office of Scientific and Technical Information (OSTI)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not Found Item Not Foundenhancer activity than FINAL Progress Report Project#ski

  17. Project Profile: Direct Supercritical Carbon Dioxide Receiver...

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

    Direct Supercritical Carbon Dioxide Receiver Development Project Profile: Direct Supercritical Carbon Dioxide Receiver Development National Renewable Energy Laboratory logo The...

  18. IR-4 Ornamental Horticulture Program Trial Report

    E-Print Network [OSTI]

    Lieth, J. Heinrich

    the height is determined by the lengths of the blades of grass. This was not affected by Pendulum. The width was supported through funding from the USDA IR-4 Program, Western Region based at UC Davis, Davis, CA. Personnel (plant culture, data collection). The materials being tested were supplied by the manufacturer

  19. UWB communication receiver feedback loop

    DOE Patents [OSTI]

    Spiridon, Alex (Palo Alto, CA); Benzel, Dave (Livermore, CA); Dowla, Farid U. (Castro Valley, CA); Nekoogar, Faranak (San Ramon, CA); Rosenbury, Erwin T. (Castro Valley, CA)

    2007-12-04T23:59:59.000Z

    A novel technique and structure that maximizes the extraction of information from reference pulses for UWB-TR receivers is introduced. The scheme efficiently processes an incoming signal to suppress different types of UWB as well as non-UWB interference prior to signal detection. Such a method and system adds a feedback loop mechanism to enhance the signal-to-noise ratio of reference pulses in a conventional TR receiver. Moreover, sampling the second order statistical function such as, for example, the autocorrelation function (ACF) of the received signal and matching it to the ACF samples of the original pulses for each transmitted bit provides a more robust UWB communications method and system in the presence of channel distortions.

  20. Central solar-energy receiver

    DOE Patents [OSTI]

    Not Available

    1981-10-27T23:59:59.000Z

    An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan is described. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

  1. Simultaneous MS-IR Studies of Surface Formate Reactivity Under...

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

    MS-IR Studies of Surface Formate Reactivity Under Methanol Synthesis Conditions on CuSiO2. Simultaneous MS-IR Studies of Surface Formate Reactivity Under Methanol Synthesis...

  2. Vehicle Technologies Office Merit Review 2015: IR Thermography...

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

    IR Thermography as a Non-Destructive Evaluation (NDE) Tool for Lithium-Ion Battery Manufacturing Vehicle Technologies Office Merit Review 2015: IR Thermography as a Non-Destructive...

  3. UV/IR Mixing for Noncommutative Complex Scalar Field Theory, II (Interaction with Gauge Fields)

    E-Print Network [OSTI]

    I. Ya. Aref'eva; D. M. Belov; A. S. Koshelev; O. A. Rytchkov

    2000-03-20T23:59:59.000Z

    We consider noncommutative analogs of scalar electrodynamics and N=2 D=4 SUSY Yang-Mills theory. We show that one-loop renormalizability of noncommutative scalar electrodynamics requires the scalar potential to be an anticommutator squared. This form of the scalar potential differs from the one expected from the point of view of noncommutative gauge theories with extended SUSY containing a square of commutator. We show that fermion contributions restore the commutator in the scalar potential. This provides one-loop renormalizability of noncommutative N=2 SUSY gauge theory. We demonstrate a presence of non-integrable IR singularities in noncommutative scalar electrodynamics for general coupling constants. We find that for a special ratio of coupling constants these IR singularities vanish. Also we show that IR poles are absent in noncommutative N=2 SUSY gauge theory.

  4. Accounts Receivable Western Michigan University

    E-Print Network [OSTI]

    de Doncker, Elise

    Accounts Receivable Western Michigan University 1903 W. Michigan Avenue Kalamazoo, MI 49008 have read the Western Michigan University Third Party Billing Policy and agree to the terms. I am authorizing Western Michigan University to bill for the specified tuition and related fees for the term

  5. Accounts Receivable Western Michigan University

    E-Print Network [OSTI]

    de Doncker, Elise

    Accounts Receivable Western Michigan University 1903 W. Michigan Avenue Kalamazoo, MI 49008-5210 269 387-4251 Fax 269 387-4227 THIRD PARTY BILLING POLICY Western Michigan University (WMU# (269) 387-4227 Western Michigan University 1903 W. Michigan Avenue E-mail: wmu

  6. Extreme Galactic-Winds and Starburst in IR Mergers and IR QSOs

    E-Print Network [OSTI]

    S. Lipari; D. Sanders; R. Terlevich; S. Veilleux; R. Diaz; Y. Taniguchi; W. Zheng; D. Kim; Z. Tsvetanov; G. Carranza; H. Dottori

    2000-07-20T23:59:59.000Z

    We report -as a part of a long-term study of mergers and IR QSOs- detailed spectroscopic evidences for outflow (OF) and/or Wolf Rayet features in: (i) low velocity OF in the ongoing mergers NGC 4038/39 and IRAS 23128-5919; (ii) extreme velocity OF (EVOF) in the QSOs IRAS 01003-2238 and IRAS 13218+0552; (iii) OF and EVOF in a complete sample of ultra-luminous IR galaxies/QSOs ("The IRAS 1 Jy MKO-KPNO Survey", of 118 objects). We found EVOF in IRAS 11119+3257, 14394+5332, 15130+1958 and 15462-0450. The OF components detected in these objects were mainly associated to starburst processes: i.e., to galactic-winds generated in multiple type II SN explosions and massive stars. The EVOF were detected in objects with strong starburst plus obscured IR QSOs; which suggest that interaction of both processes could generate EVOF. In addition, we analyze the presence of Wolf Rayet features in the large sample of Bright PG-QSOs (Boroson and Green 1992), and nearby mergers and galactic-wind galaxies. We found clear WR features in the Fe II QSOs (type I): PG 1244+026, 1444+407, 1448+273, 1535+547; and in the IR merger Arp 220. HST archive images of IR+BAL QSOs show in practically all of these objects "arc or shell" features probably associated to galactic-winds (i.e., to multiple type II SN explosions) and/or merger processes. Finally, we discuss the presence of extreme starburst and galactic wind as a possible evolutive link between IR merger and IR QSOs; where the relation between mergers and extreme starburst (with powerful galactic-winds) plays in important role, in the evolution of galaxies.

  7. Nb3Sn Quadrupole Magnets for the LHC IR

    SciTech Connect (OSTI)

    Sabbi, G.; Caspi, S.; Chiesa, L.; Coccoli, M.; Dietderich, D.r.; Ferracin, P.; Gourlay, S.A.; Hafalia, R.R.; Lietzke, A.F.; McInturff, A.D.; Scanlan, R.M.

    2001-08-01T23:59:59.000Z

    The development of insertion quadrupoles with 205 T/m gradient and 90 mm bore represents a promising strategy to achieve the ultimate luminosity goal of 2.5 x 10{sup 34} cm{sup -2}s{sup -1} at the Large Hadron Collider (LHC). At present, Nb{sub 3}Sn is the only practical conductor which can meet these requirements. Since Nb{sub 3}Sn is brittle, and considerably more strain sensitive than NbTi, the design concepts and fabrication techniques developed for NbTi magnets need to be modified appropriately. In addition, IR magnets must provide high field quality and operate reliably under severe radiation loads. The results of conceptual design studies addressing these issues are presented.

  8. SAW correlator spread spectrum receiver

    DOE Patents [OSTI]

    Brocato, Robert W

    2014-04-01T23:59:59.000Z

    A surface acoustic wave (SAW) correlator spread-spectrum (SS) receiver is disclosed which utilizes a first demodulation stage with a chip length n and a second demodulation stage with a chip length m to decode a transmitted SS signal having a code length l=n.times.m which can be very long (e.g. up to 2000 chips or more). The first demodulation stage utilizes a pair of SAW correlators which demodulate the SS signal to generate an appropriate code sequence at an intermediate frequency which can then be fed into the second demodulation stage which can be formed from another SAW correlator, or by a digital correlator. A compound SAW correlator comprising two input transducers and a single output transducer is also disclosed which can be used to form the SAW correlator SS receiver, or for use in processing long code length signals.

  9. Digital-data receiver synchronization

    DOE Patents [OSTI]

    Smith, Stephen F.; Turner, Gary W.

    2005-08-02T23:59:59.000Z

    Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  10. Receiver designs for multiuser underwater acoustic communications

    E-Print Network [OSTI]

    Cho, Steve E.

    2012-01-01T23:59:59.000Z

    Receiver block diagram employing SIC, ATR, MP, and a jointReceiver block diagram employing SIC, ATR, MP, and a joint

  11. Receiver subsystem analysis report (RADL Item 4-1). 10-MWe Solar Thermal Central-Receiver Pilot Plant: solar-facilities design integration

    SciTech Connect (OSTI)

    Not Available

    1982-04-01T23:59:59.000Z

    The results are presented of those thermal hydraulic, structural, and stress analyses required to demonstrate that the Receiver design for the Barstow Solar Pilot Plant will satisfy the general design and performance requirements during the plant's design life. Recommendations resulting from those analyses and supporting test programs are presented regarding operation of the receiver. The analyses are limited to receiver subsystem major structural parts (primary tower, receiver unit core support structure), pressure parts (absorber panels, feedwater, condensate and steam piping/components, flash tank, and steam mainfold) and shielding. (LEW)

  12. Receiving Water and Other Impacts Robert Pitt

    E-Print Network [OSTI]

    Pitt, Robert E.

    5-1 Chapter 5 Receiving Water and Other Impacts Robert Pitt Desired Water Uses Versus Stormwater Impacts The main purpose of treating stormwater is to reduce its adverse impacts on receiving water of the detrimental effects that runoff is actually having on a receiving water. Urban receiving waters may have many

  13. The chemical instability of Na{sub 2}IrO{sub 3} in air

    SciTech Connect (OSTI)

    Krizan, J.W., E-mail: jkrizan@princeton.edu; Roudebush, J.H.; Fox, G.M.; Cava, R.J.

    2014-04-01T23:59:59.000Z

    Highlights: Na{sub 2}IrO{sub 3} decomposes rapidly in laboratory air. The decomposition requires the simultaneous presence of CO{sub 2} and H{sub 2}O. Decomposition results in a dramatic change in the magnetic properties. Second 5 K feature in magnetic susceptibility not previously reported. - Abstract: We report that Na{sub 2}IrO{sub 3}, which has a layered honeycomb iridium oxide sublattice interleaved by Na planes, decomposes in laboratory air while maintaining the same basic crystal structure. The decomposition reaction was monitored by time-dependent powder X-ray diffraction under different ambient atmospheres, through which it was determined that it occurs only in the simultaneous presence of both CO{sub 2} and H{sub 2}O. A hydrated sodium carbonate is the primary decomposition product along with altered Na{sub 2}IrO{sub 3}. The diffraction signature of the altered Na{sub 2}IrO{sub 3} is quite similar to that of the pristine material, which makes the detection of decomposition difficult in a sample handled under ordinary laboratory conditions. The decomposed samples show a significantly decreased magnetic susceptibility and the disappearance of the low temperature antiferromagnetic transition considered to be characteristic of the phase. Samples that have never been exposed to air after synthesis display a previously unreported magnetic transition at 5 K.

  14. On-Line Weld NDE with IR Thermography

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

    non-destructive evaluation (NDE) technology for RSW quality monitoring based on infrared (IR) thermography that can be adopted reliably and cost-effectively in high-volume...

  15. On-Line Weld NDE with IR Thermography

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

    (NDE) technology for resistance spot weld (RSW) quality monitoring based on infrared (IR) thermography that can be adopted reliably and cost-effectively in high-volume...

  16. A Digital-Receiver for the Murchison Widefield Array

    E-Print Network [OSTI]

    Prabu, Thiagaraj; Roshi, D Anish; Kamini, P A; Madhavi, S; Emrich, David; Crosse, Brian; Williams, Andrew J; Waterson, Mark; Deshpande, Avinash A; Shankar, N Udaya; Subrahmanyan, Ravi; Briggs, Frank H; Goeke, Robert F; Tingay, Steven J; Johnston-Hollitt, Melanie; R, Gopalakrishna M; Morgan, Edward H; Pathikulangara, Joseph; Bunton, John D; Hampson, Grant; Williams, Christopher; Ord, Stephen M; Wayth, Randall B; Kumar, Deepak; Morales, Miguel F; deSouza, Ludi; Kratzenberg, Eric; Pallot, D; McWhirter, Russell; Hazelton, Bryna J; Arcus, Wayne; Barnes, David G; Bernardi, Gianni; Booler, T; Bowman, Judd D; Cappallo, Roger J; Corey, Brian E; Greenhill, Lincoln J; Herne, David; Hewitt, Jacqueline N; Kaplan, David L; Kasper, Justin C; Kincaid, Barton B; Koenig, Ronald; Lonsdale, Colin J; Lynch, Mervyn J; Mitchell, Daniel A; Oberoi, Divya; Remillard, Ronald A; Rogers, Alan E; Salah, Joseph E; Sault, Robert J; Stevens, Jamie B; Tremblay, S E; Webster, Rachel L; Whitney, Alan R; Wyithe, Stuart B

    2015-01-01T23:59:59.000Z

    An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at the Murchison Radio-astronomy Observatory (MRO) in Western Australia, consists of 128 dual-polarized aperture-array elements (tiles) operating between 80 and 300\\,MHz, with a total processed bandwidth of 30.72 MHz for each polarization. Radio-frequency signals from the tiles are amplified and band limited using analog signal conditioning units; sampled and channelized by digital-receivers. The signals from eight tiles are processed by a single digital-receiver, thus requiring 16 digital-receivers for the MWA. The main function of the digital-receivers is to digitize the broad-band signals from each tile, channelize them to form the sky-band, and transport it through optical fibers to a centrally located correlator for further processing. The digital-receiver firmware also implements functions to measure the signal power, perform power equalization across ...

  17. Investigation of aerowindows for solar receivers. Final report

    SciTech Connect (OSTI)

    Not Available

    1984-05-04T23:59:59.000Z

    The use of aerowindows to improve the efficiency and operation of central solar receivers has been analyzed to determine the conditions under which such improvements are possible. The results have shown that the aerowindow solar receiver concept is both technically and economically viable. The energy balance in the solar receiver, with and without the aerowindow, has been estimated with conservative models of the flow and heat transfer. For receiver cavity wall temperatures in the range of 1000 to 1600 K, there is a large positive energy benefit to using the aerowindow. Effective use of the aerowindow probably will require the use of recirculated gases from the cavity to reduce mixing and heat transfer at the cavity gas/aerowindow interface. Aerowindow technology is available now from industrial air curtain technology used on open warehouse entrances with dimensions similar to the apertures of large solar receivers. The cost of these devices is modest in terms of the cost of the energy saved, with the result that the payback period under broad ranges of receiver sizes and operating conditions is 1 to 5 years, even for relatively low equivalent costs for the thermal power being saved.

  18. Low cost multi-channel GPS receiver

    E-Print Network [OSTI]

    Painter, John H.; Tachita, R.; Ikeda, K.; Teranishi, A.; Noe, P.S.

    1988-11-29T23:59:59.000Z

    An investigation was conducted on compact, multichannel GPS (global positioning system) receivers. The code generator and correlation equipment were simplified, attempting to avoid downgrading the properties possessed by multichannel receivers...

  19. Pantex receives National Weather Service recognition | National...

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

    receives National Weather Service recognition | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

  20. GaSb substrates with extended IR wavelength for advanced space based applications

    SciTech Connect (OSTI)

    Allen, Lisa P.; Flint, Patrick; Dallas, Gordon; Bakken, Daniel; Blanchat, Kevin; Brown, Gail J.; Vangala, Shivashankar R.; Goodhue, William D.; Krishnaswami, Kannan

    2009-05-01T23:59:59.000Z

    GaSb substrates have advantages that make them attractive for implementation of a wide range of infrared (IR) detectors with higher operating temperatures for stealth and space based applications. A significant aspect that would enable widespread commercial application of GaSb wafers for very long wavelength IR (VLWIR) applications is the capability for transmissivity beyond 15 m. Due largely to the GaSb (antisite) defect and other point defects in undoped GaSb substrates, intrinsic GaSb is still slightly p-type and strongly absorbs in the VLWIR. This requires backside thinning of the GaSb substrate for IR transmissivity. An extremely low n-type GaSb substrate is preferred to eliminate thinning and provide a substrate solution for backside illuminated VLWIR devices. By providing a more homogeneous radial distribution of the melt solute to suppress GaSb formation and controlling the cooling rate, ultra low doped n:GaSb has been achieved. This study examines the surface properties and IR transmission spectra of ultra low doped GaSb substrates at both room and low temperatures. Atomic force microscopy (AFM), homoepitaxy by MBE, and infrared Fourier transform (FTIR) analysis was implemented to examine material quality. As compared with standard low doped GaSb, the ultra low doped substrates show over 50% transmission and consistent wavelength transparency past 23 m with improved %T at low temperature. Homoepitaxy and AFM results indicate the ultra low doped GaSb has a low thermal desorbtion character and qualified morphology. In summary, improvements in room temperature IR transmission and extended wavelength characteristics have been shown consistently for ultra low doped n:GaSb substrates.

  1. Which Oxidation State Leads to O-O Bond Formation in Cp*Ir(bpy)Cl-Catalyzed Water Oxidation, Ir(V), Ir(VI), or Ir(VII)?

    E-Print Network [OSTI]

    Liao, Rongzhen

    Which Oxidation State Leads to O-O Bond Formation in Cp*Ir(bpy)Cl-Catalyzed Water Oxidation, Ir: Density functional calculations are used to revisit the reaction mechanism of water oxidation catalyzed oxidation at higher oxidation state even though it can also promote O-O bond formation. Therefore, [(bpy

  2. Moving Object Detection and Compression in IR Sequences

    E-Print Network [OSTI]

    Agrawal, Amit

    infrared (IR) sensors. The aim is to use IR image sequences to detect moving objects (humans or vehicles computational power of computing devices attached to the sensor, the algorithms should be computationally simple implemented in C/C++ and their performance has been evaluated the using Hitachi's SH4 platform with software

  3. Growth of graphene on Ir(111) Johann Coraux1

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Growth of graphene on Ir(111) Johann Coraux1 ,, Alpha T. N'Diaye1 , Martin Engler1 , Carsten Busse a renewed interest as a route towards high quality graphene prepared in a reproducible manner. Here we employ two growth methods for graphene on Ir(111), namely room temperature adsorption and thermal

  4. Transitions between the $4f$-core-excited states in Ir$^{16+}$, Ir$^{17+}$, and Ir$^{18+}$ ions for clock applications

    E-Print Network [OSTI]

    U. I. Safronova; V. V. Flambaum; M. S. Safronova

    2015-05-05T23:59:59.000Z

    Iridium ions near $4f$-$5s$ level crossings are the leading candidates for a new type of atomic clocks with a high projected accuracy and a very high sensitivity to the temporal variation of the fine structure constant $\\alpha$. To identify spectra of these ions in experiment accurate calculations of the spectra and electromagnetic transition probabilities should be performed. Properties of the $4f$-core-excited states in Ir$^{16+}$, Ir$^{17+}$, and Ir$^{18+}$ ions are evaluated using relativistic many-body perturbation theory and Hartree-Fock-Relativistic method (COWAN code). We evaluate excitation energies, wavelengths, oscillator strengths, and transition rates. Our large-scale calculations includes the following set of configurations: $4f^{14-k}5s^{m}5p^{n}$ with $(k+m+n)$ equal to 3, 2, and 1 for the Ir$^{16+}$, Ir$^{17+}$, and Ir$^{18+}$ ions, respectively. The $5s-5p$ transitions are illustrated by the synthetic spectra in the 180 - 200 \\AA range. Large contributions of magnetic-dipole transitions to lifetimes of low-lying states in the region below 2.5 Ry are demonstrated.

  5. EPR and IR studies of [Ru(NH?)?]+-Y and [Ru(NH?)?N?]+-Y type zeolites

    E-Print Network [OSTI]

    Leubner, Raymond Leon

    1973-01-01T23:59:59.000Z

    EPR AND IR STUDIES OF [Ru(NH ) ] -Y 3 6 AND [Ru(NE ) N ] -Y TYPE ZEOLITES 2+ A Thesis by RAYMOND LEON LEUBNER Submitted to the Graduate College of Texas A&M University in partia1 fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1973 Major Subject: Chemistry EPR AND IR STUDIES OF [Ru(NH3) ] -Y 3+ AND [Ru(NH3) N ) -Y TYPE ZEOLITES 2+ 3&2 A Thesis by RAYMOND LEON LEUBNER Approved as to style and content by: (Chairman of Committ (Head of Department) (Memb...

  6. Received 8 Mar 2014 | Accepted 24 Jun 2014 | Published 5 Aug 2014 Conformable amplified lead zirconate titanate

    E-Print Network [OSTI]

    Rogers, John A.

    -emitting diodes, solar cells and transistors have received much attention, application requirements often demand on soft supports as well as engineering behaviours of the associated devices. Calibrated measurements

  7. Materials Science and Engineering Graduate Program Requirements

    E-Print Network [OSTI]

    Simons, Jack

    Materials Science and Engineering Graduate Program Requirements The Department of Materials Science received their B.S. degree from Materials Science and Engineering at the University of Utah and received by the Supervisory Committee All petitions must be presented to the Materials Science and Engineering faculty

  8. A New Argus Direct Conversion Receiver and Digital Array Receiver/Processor

    E-Print Network [OSTI]

    Ellingson, Steven W.

    A New Argus Direct Conversion Receiver and Digital Array Receiver/Processor Grant Hampson and Steve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 References 20 Appendix A: Direct Conversion FPGA Source Code 21 Appendix B: Digital Receiver system. The new architecture consists of four main components: a Direct Conversion Receiver (DCR

  9. Digitally Assisted Multi-Channel Receivers

    E-Print Network [OSTI]

    Pentakota, Krishna Anand Santosh Spikanth

    2011-10-21T23:59:59.000Z

    -channel charge sampling receivers with sinc filter banks together with a complete system calibration and synchronization algorithm for the receiver. A unified model has been defined for the receiver containing all first order mismatches, offsets... and imperfections and a technique based on least mean squares algorithm is employed to track these errors. The performance of this technique under noisy channel conditions has been verified. The sinc filter bank is compared with the conventional analog filter...

  10. High-Flux Microchannel Solar Receiver

    Broader source: Energy.gov [DOE]

    This fact sheet describes a high-flux, microchannel solar receiver project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by Oregon State University, is working to demonstrate a microchannel-based solar receiver capable of absorbing high solar flux, while using a variety of liquid and gaseous working fluids. High-flux microchannel receivers have the potential to dramatically reduce the size and cost of a solar receiver by minimizing re-radiation and convective losses.

  11. Argonne receives 2014 Illinois Governor's Sustainability Award...

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

    receives 2014 Illinois Governor's Sustainability Award By Else Tennessen * November 10, 2014 Tweet EmailPrint On Oct. 23, Argonne National Laboratory was presented with the...

  12. Particle Receiver Integrated with Fludized Bed

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

    of solar collection from the solar field to the receiver, energy conversion systems, and thermal energy storage. Concentrating Solar Power NATIONAL RENEWABLE ENERGY LABORATORY...

  13. Sandia Energy - Sandia Workers Received Entrepreneurial Spirit...

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

    Received Entrepreneurial Spirit Awards Jim Pacheco built a reputation in concentrating solar power and was recruited by several companies when the technology took off in the...

  14. Receiver designs for multiuser underwater acoustic communications

    E-Print Network [OSTI]

    Cho, Steve E.

    2012-01-01T23:59:59.000Z

    compensate for the Doppler effect. The receiver discussed in? p = ? p /? p . The Doppler effect compresses or dilateschar- acterizes the Doppler effect in narrowband systems (W

  15. High-Temperature Falling-Particle Receiver

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

    | April 15, 2013 | Ho * This project employs modeling, design, testing, and optimization to further develop and improve key areas of falling particle receiver technology...

  16. High-Temperature Falling-Particle Receiver

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

    | June 15, 2013 | Ho * This project employs modeling, design, testing, and optimization to further develop and improve key areas of falling particle receiver technology...

  17. Sandia National Laboratories: Solar Receiver Shroud

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

    Receiver Shroud Pratt Whitney Rocketdyne Testing On December 19, 2012, in Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

  18. High-Temperature Falling-Particle Receiver

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

    temperatures, nitrate salt fluids become chemically unstable. In contrast, direct absorption receivers using solid particles that fall through a beam of concentrated solar...

  19. Near-Blackbody Enclosed Particle Receiver

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

    radiative principles. Innovative Receiver Design 7 2. Transform 2-D panel heat absorption to 3-D volumetric heat transfer by using arrayed absorber tubes. Aperture flux Wall...

  20. Molecular Active Sites in Heterogeneous Ir-La/C Catalyzed Carbonylatio...

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

    Molecular Active Sites in Heterogeneous Ir-LaC Catalyzed Carbonylation of Methanol to Acetates. Molecular Active Sites in Heterogeneous Ir-LaC Catalyzed Carbonylation of Methanol...

  1. Analog Baseband Filters and Mixed Signal Circuits for Broadband Receiver Systems

    E-Print Network [OSTI]

    Kulkarni, Raghavendra Laxman

    2012-02-14T23:59:59.000Z

    deals with broadband wireless receivers. With an objective to gain insight, we quantify the impact of undesired out-band blockers on analog baseband in a broadband radio. We present a systematic evaluation of the dynamic range requirements...

  2. On-Line Weld NDE with IR Thermography

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

    non-destructive evaluation (NDE) technology for spot weld quality monitoring based on infrared (IR) thermography that can be adopted reliably and cost-effectively in high-volume...

  3. Ir. Charles Mussche 8 Spruce St, New York

    E-Print Network [OSTI]

    Ir. Charles Mussche 8 Spruce St, New York 10038 NYC Mobile: +1 (347 at an industrial solar-energy project developer. Function: Autonomy Auditing New business in Renewable Energy Ecole Des Mines ParisTech Kassel University First Semester

  4. DWEA Webinar: IRS Guidance for Small Wind Turbines

    Broader source: Energy.gov [DOE]

    The U.S. Internal Revenue Service (IRS) has issued Notice 2015-4 providing new performance and quality standards of small wind turbines defined as having a nameplate capacity of up to 100 kW in...

  5. IR-laser initiated combustion -- A step toward complete combustion

    SciTech Connect (OSTI)

    Laghai, A.; Nabavi, S.H.; Servati, H.B.; Syed, F.

    1996-09-01T23:59:59.000Z

    The new global environmental regulations for reducing the engine emissions from both moving and stationary sources, as well as improvement in fuel economy are the major motifs to obtain a perfect combustion process and exhaust aftertreatment methods. Infrared (IR)-Laser initiated combustion provides a very high initial temperature, which produces propagation of a turbulent thermopressure pulse that results in a fast burning and improved combustion. The role of IR is to maximize the heat generation efficiency.

  6. Liquid chromatography/Fourier transform IR spectrometry interface flow cell

    DOE Patents [OSTI]

    Johnson, Charles C. (Fairfield, OH); Taylor, Larry T. (Blacksburg, VA)

    1986-01-01T23:59:59.000Z

    A zero dead volume (ZDV) microbore high performance liquid chromatography (.mu.HPLC)/Fourier transform infrared (FTIR) interface flow cell includes an IR transparent crystal having a small diameter bore therein through which a sample liquid is passed. The interface flow cell further includes a metal holder in combination with a pair of inner, compressible seals for directly coupling the thus configured spectrometric flow cell to the outlet of a .mu.HPLC column end fitting to minimize the transfer volume of the effluents exiting the .mu.HPLC column which exhibit excellent flow characteristics due to the essentially unencumbered, open-flow design. The IR beam passes transverse to the sample flow through the circular bore within the IR transparent crystal, which is preferably comprised of potassium bromide (KBr) or calcium fluoride (CaF.sub.2), so as to minimize interference patterns and vignetting encountered in conventional parallel-plate IR cells. The long IR beam pathlength and lensing effect of the circular cross-section of the sample volume in combination with the refractive index differences between the solvent and the transparent crystal serve to focus the IR beam in enhancing sample detection sensitivity by an order of magnitude.

  7. Liquid chromatography/Fourier transform IR spectrometry interface flow cell

    DOE Patents [OSTI]

    Johnson, C.C.; Taylor, L.T.

    1985-01-04T23:59:59.000Z

    A zero dead volume (ZDV) microbore high performance liquid chromatography (..mu.. HPLC)/Fourier transform infrared (FTIR) interface flow cell includes an IR transparent crystal having a small diameter bore therein through which a sample liquid is passed. The interface flow cell further includes a metal holder in combination with a pair of inner, compressible seals for directly coupling the thus configured spectrometric flow cell to the outlet of a ..mu.. HPLC column end fitting to minimize the transfer volume of the effluents exiting the ..mu.. HPLC column which exhibit excellent flow characteristics due to the essentially unencumbered, open-flow design. The IR beam passes transverse to the sample flow through the circular bore within the IR transparent crystal, which is preferably comprised of potassium bromide (KBr) or calcium fluoride (CaF/sub 2/), so as to minimize interference patterns and vignetting encountered in conventional parallel-plate IR cells. The long IR beam pathlength and lensing effect of the circular cross-section of the sample volume in combination with the refractive index differences between the solvent and the transparent crystal serve to focus the IR beam in enhancing sample detection sensitivity by an order of magnitude.

  8. Liquid cooled fiber thermal radiation receiver

    DOE Patents [OSTI]

    Butler, B.L.

    1985-03-29T23:59:59.000Z

    A radiation-to-thermal receiver apparatus for collecting radiation and converting it to thermal energy is disclosed. The invention includes a fibrous mat material which captures radiation striking the receiver. Captured radiation is removed from the fibrous mat material by a transparent fluid within which the material is bathed.

  9. Los Alamos National Laboratory employees receive Pollution Prevention...

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

    Employees Receive Pollution Prevention Awards Los Alamos National Laboratory employees receive Pollution Prevention Awards Nearly 400 employees on 47 teams received Pollution...

  10. Power generation considerations in a solar biomodal receiver

    SciTech Connect (OSTI)

    Rochow, R.F. [NovaTech, Lynchburg, VA (United States); Miles, B.J. [Babcock and Wilcox, Lynchburg, VA (United States)

    1996-12-31T23:59:59.000Z

    The Integrated Solar Upper Stage (ISUS), or solar bimodal stage provides both propulsive thrust for efficient orbital transfer(s) and electrical power generation for the spacecraft. The combined propulsive and power systems allow the solar bimodal system to effectively compete for a variety of missions. Once on station, thermionic converters are used to supply continuous electrical power to the satellite, even during periods when the spacecraft is in the Earth`s shadow. The key to continuous power supply is thermal energy storage. The ISUS propulsion system also benefits through the use of thermal storage. By utilizing a graphite receiver, large amounts of sensible heat can be stored for later power generation. Waste heat is radiated to space through the use of heat pipes. Clearly, the graphite mass must be minimized without sacrificing electrical power capability. Voltage and current characteristics are carefully designed to operate within acceptable ranges. The detailed design of the receiver/absorber/converter (RAC) power system must meet these requirements with as little impact to the remainder of the bimodal system as possible. This paper addresses the key design considerations of a solar bimodal receiver as a power plant. Factors including the thermal storage and heat transfer from the graphite receiver to the thermionic converters, the support structures, electrical insulation and converter string design will be discussed.

  11. Global Positioning System receiver evaluation results

    SciTech Connect (OSTI)

    Byrne, R.H.

    1993-09-01T23:59:59.000Z

    A Sandia project currently uses an outdated Magnavox 6400 Global Positioning System (GPS) receiver as the core of its navigation system. The goal of this study was to analyze the performance of the current GPS receiver compared to newer, less expensive models and to make recommendations on how to improve the performance of the overall navigation system. This paper discusses the test methodology used to experimentally analyze the performance of different GPS receivers, the test results, and recommendations on how an upgrade should proceed. Appendices contain detailed information regarding the raw data, test hardware, and test software.

  12. Superconducting and magnetic properties of Sr?Ir?Sn??

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

    Biswas, P. K.; Wang, Kefeng; Amato, A.; Khasanov, R.; Luetkens, H.; Petrovic, C.; Cook, R. M.; Lees, M. R.; Morenzoni, E.

    2014-10-01T23:59:59.000Z

    Magnetization and muon spin relaxation or rotation (SR) measurements have been performed to study the superconducting and magnetic properties of Sr?Ir?Sn??. From magnetization measurements the lower and upper critical fields of Sr?Ir?Sn?? are found to be 81(1) Oe and 14.4(2) kOe, respectively. Zero-field SR data show no sign of any magnetic ordering or weak magnetism in Sr?Ir?Sn??. Transverse-field SR measurements in the vortex state provided the temperature dependence of the magnetic penetration depth ?. The dependence of ?? with temperature is consistent with the existence of single s-wave energy gap in the superconducting state of Sr?Ir?Sn?? with a gap valuemoreof 0.82(2) meV at absolute zero temperature. The magnetic penetration depth at zero temperature ?(0) is 291(3) nm. The ratio ?(0)/kBTc = 2.1(1) indicates that Sr?Ir?Sn?? should be considered as a strong-coupling superconductor.less

  13. Superconducting and magnetic properties of Sr?Ir?Sn??

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

    Biswas, P. K. [Paul Scherrer Inst. (PSI), Villigen (Switzerland); Wang, Kefeng [Brookhaven National Lab. (BNL), Upton, NY (United States); Amato, A. [Paul Scherrer Inst. (PSI), Villigen (Switzerland); Khasanov, R. [Paul Scherrer Inst. (PSI), Villigen (Switzerland); Luetkens, H. [Paul Scherrer Inst. (PSI), Villigen (Switzerland); Petrovic, C. [Brookhaven National Lab. (BNL), Upton, NY (United States); Cook, R. M. [Univ. of Warwick, Coventry (United Kingdom); Lees, M. R. [Univ. of Warwick, Coventry (United Kingdom); Morenzoni, E. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

    2014-10-01T23:59:59.000Z

    Magnetization and muon spin relaxation or rotation (SR) measurements have been performed to study the superconducting and magnetic properties of Sr?Ir?Sn??. From magnetization measurements the lower and upper critical fields of Sr?Ir?Sn?? are found to be 81(1) Oe and 14.4(2) kOe, respectively. Zero-field SR data show no sign of any magnetic ordering or weak magnetism in Sr?Ir?Sn??. Transverse-field SR measurements in the vortex state provided the temperature dependence of the magnetic penetration depth ?. The dependence of ?? with temperature is consistent with the existence of single s-wave energy gap in the superconducting state of Sr?Ir?Sn?? with a gap value of 0.82(2) meV at absolute zero temperature. The magnetic penetration depth at zero temperature ?(0) is 291(3) nm. The ratio ?(0)/kBTc = 2.1(1) indicates that Sr?Ir?Sn?? should be considered as a strong-coupling superconductor.

  14. The Michigan Recreational Angler Survey Tracking status and trends of Michiga ir resource use ir resource use n's anglers and the

    E-Print Network [OSTI]

    The Michigan Recreational Angler Survey Tracking status and trends of Michiga ir resource use ir of angling effort for all of Michigan's fisheries Method Monthly, statewide mail survey of Michigan's licensed anglers Priority Outcomes & Management Applications glers s Baseline

  15. Solar central receiver systems comparative economics

    SciTech Connect (OSTI)

    Eicker, P J

    1980-04-01T23:59:59.000Z

    Several major conceptual design studies of solar central receiver systems and components have been completed in the last year. The results of these studies are used to compare the projected cost of electric power generation using central receiver systems with that of more conventional power generation. The cost estimate for a molten salt central receiver system is given. Levelized busbar energy cost is shown as a function of annual capacity factor indicating the fraction of the cost due to each of the subsystems. The estimated levelized busbar energy cost for a central receiver (70 to 90 mills per kilowatt hour) is compared with the levelized busbar energy cost for a new coal fired Rankine cycle plant. Sensitivities to the initial cost of coal and the delta fuel escalation are shown. (WHK)

  16. Collector/Receiver Characterization (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01T23:59:59.000Z

    Fact sheet describing NREL CSP Program capabilities for collector/receiver characterization: determining optical efficiency, measuring heat loss, developing and testing concentrators, concentrating the sun's power, and optically characterizing CSP plants.

  17. One Video Stream to Serve Diverse Receivers

    E-Print Network [OSTI]

    Woo, Grace

    2008-10-18T23:59:59.000Z

    The fundamental problem of wireless video multicast is to scalably serve multiple receivers which may have very different channel characteristics. Ideally, one would like to broadcast a single stream that allows each ...

  18. Incident IR Bandwidth Effects on Efficiency and Shaping for Third Harmonic Generation of Quasi-Rectangular UV Longitudinal Profiles

    SciTech Connect (OSTI)

    Not Available

    2010-12-07T23:59:59.000Z

    The photocathode of the proposed LCLS RF Photoinjector will be irradiated by uv laser light which is generated as the third harmonic of incident fundamental ir laser light. We have investigated quantitatively the effect of input ir spectral bandwidth on the exiting longitudinal intensity profiles, energy conversion efficiencies and spectral bandwidths that characterize the third harmonic generation (THG) process with a pair of crystals. These profiles, efficiencies and bandwidths include the residual fundamental and residual second harmonic light exiting the second crystal. The intrinsic acceptance bandwidth for THG is determined by crystal material and thickness as well as the type of phase matching that is used. For our case of BBO material with type I phase matching these bandwidths are approximately 0.9 nm*cm and 0.1 nm*cm for second and third harmonic generation respectively. Consequently for fixed crystal thicknesses and a fixed input ir longitudinal profile, the specified input ir bandwidth will determine the profiles, efficiencies and bandwidths exiting the second crystal. The results reported here are predictions of the SNLO code that is available as 'freeware' from the Sandia National Laboratories. It has been modified for this work. It is critical to note that this modification has enabled us to generate SNLO predictions of the 'coupled' case in which the output of the first crystal is used as input to the second crystal. Our focus is the dependence of uv longitudinal intensity profile and THG efficiency on the input ir bandwidth and crystal thicknesses. We include here cases that best illustrate input bandwidth effects. The criteria for selection of reported cases are highest efficiency generation of quasi-rectangular uv profiles with proportional intensity ripple less than 5% rms on the plateau of the pulse. Maximizing THG efficiency typically amounts to maximizing the crystal thicknesses with the longitudinal profile constraint. The specified incident ir longitudinal profile is quasi-rectangular (i.e. nonzero risetime and falltime with small intensity variation on the plateau) with a 10 psec pulse duration (FWHM). By assumption, this profile has been established upstream of the crystals at the fundamental ir wavelength. The simplest possible optical configuration is used in this work as shown in figure 1. The first crystal is the site of second harmonic generation (SHG) driven by the incident ir irradiation of central wavelength, 800nm. Downstream of the first crystal, the second crystal is the site of third harmonic generation (THG) which occurs by sum frequency mixing. Inter-crystal optics (such as a half waveplate) are assumed to be lossless at the fundamental and second harmonic wavelengths. As shown in figure 1, a portion of the incident ir irradiation is not sequestered from the first crystal for subsequent THG in the second crystal. Also, quasi-phase matching configurations and other complex compensation schemes have not been investigated at this point. The simplistic geometry better elucidates the intrinsic acceptance bandwidth limitations imposed by the crystals. Our goal in this endeavor has been to conduct a quantitative assessment of incident ir bandwidth effects on the THG process for BBO material of varied thicknesses and not, at this stage, to comply with all uv pulse specifications for the LCLS RF Photoinjector. Nonetheless, our results can be compared with LCLS photoinjector uv pulse requirements which call for a nominal 10 psec FWHM with 1 psec risetime and falltime and a nominally flat plateau (allowing for slope adjustments) with no more than a 5% rms proportional intensity variation. Furthermore, the results of this work can be used to suggest crystal thicknesses that would likely comply with all uv pulse requirements given the appropriate longitudinal profile and bandwidth for an input ir pulse.

  19. A handbook for solar central receiver design

    SciTech Connect (OSTI)

    Falcone, P.K.

    1986-12-01T23:59:59.000Z

    This Handbook describes central receiver technology for solar thermal power plants. It contains a description and assessment of the major components in a central receiver system configured for utility scale production of electricity using Rankine-cycle steam turbines. It also describes procedures to size and optimize a plant and discussed examples from recent system analyses. Information concerning site selection criteria, cost estimation, construction, and operation and maintenance is also included, which should enable readers to perform design analyses for specific applications.

  20. Baseload Nitrate Salt Central Receiver Power Plant Design Final Report

    SciTech Connect (OSTI)

    Tilley, Drake; Kelly, Bruce; Burkholder, Frank

    2014-12-12T23:59:59.000Z

    The objectives of the work were to demonstrate that a 100 MWe central receiver plant, using nitrate salt as the receiver coolant, thermal storage medium, and heat transport fluid in the steam generator, can 1) operate, at full load, for 6,400 hours each year using only solar energy, and 2) satisfy the DOE levelized energy cost goal of $0.09/kWhe (real 2009 $). To achieve these objectives the work incorporated a large range of tasks relating to many different aspects of a molten salt tower plant. The first Phase of the project focused on developing a baseline design for a Molten Salt Tower and validating areas for improvement. Tasks included a market study, receiver design, heat exchanger design, preliminary heliostat design, solar field optimization, baseline system design including PFDs and P&IDs and detailed cost estimate. The baseline plant met the initial goal of less than $0.14/kWhe, and reinforced the need to reduce costs in several key areas to reach the overall $0.09/kWhe goal. The major improvements identified from Phase I were: 1) higher temperature salt to improve cycle efficiency and reduce storage requirements, 2) an improved receiver coating to increase the efficiency of the receiver, 3) a large receiver design to maximize storage and meet the baseload hours objective, and 4) lower cost heliostat field. The second Phase of the project looked at advancing the baseline tower with the identified improvements and included key prototypes. To validate increasing the standard solar salt temperature to 600 C a dynamic test was conducted at Sandia. The results ultimately proved the hypothesis incorrect and showed high oxide production and corrosion rates. The results lead to further testing of systems to mitigate the oxide production to be able to increase the salt temperature for a commercial plant. Foster Wheeler worked on the receiver design in both Phase I and Phase II looking at both design and lowering costs utilizing commercial fossil boiler manufacturing. The cost and design goals for the project were met with this task, but the most interesting results had to do with defining the failure modes and looking at a shakedown analysis of the combined creep-fatigue failure. A separate task also looked at improving the absorber coatings on the receiver tubes that would improve the efficiency of the receiver. Significant progress was made on developing a novel paint with a high absorptivity that was on par with the current Pyromark, but shows additional potential to be optimized further. Although the coating did not meet the emissivity goals, preliminary testing the new paint shows potential to be much more durable, and potential to improve the receiver efficiency through a higher average absorptivity over the lifetime. Additional coatings were also designed and modeled results meet the project goals, but were not tested. Testing for low cycle fatigue of the full length receiver tubes was designed and constructed, but is still currently undergoing testing. A novel small heliostat was developed through an extensive brainstorming and down select. The concept was then detailed further with inputs from component testing and eventually a full prototype was built and tested. This task met or exceeded the accuracy and structure goals and also beat the cost goal. This provides a significant solar field costs savings for Abengoa that will be developed further to be used in future commercial plants. Ultimately the $0.09/kWhe (real 2009 $) and 6,400 hours goals of the project were met.

  1. Low Dose IR Creates an Oncogenic Microenvironment by Inducing Premature

    SciTech Connect (OSTI)

    Yuan, Zhi-Min [Harvard School of Public Health

    2013-04-28T23:59:59.000Z

    Introduction Much of the work addressing ionizing radiation-induced cellular response has been carried out mainly with the traditional cell culture technique involving only one cell type, how cellular response to IR is influenced by the tissue microenvironment remains elusive. By use of a three-dimensional (3D) co-culture system to model critical interactions of different cell types with their neighbors and with their environment, we recently showed that low-dose IR-induced extracellular signaling via the tissue environment affects profoundly cellular responses. This proposal aims at determining the response of mammary epithelial cells in a tissue-like setting.

  2. Liquid cooled, linear focus solar cell receiver

    DOE Patents [OSTI]

    Kirpich, Aaron S. (Broomall, PA)

    1985-01-01T23:59:59.000Z

    Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.

  3. Liquid cooled, linear focus solar cell receiver

    DOE Patents [OSTI]

    Kirpich, A.S.

    1983-12-08T23:59:59.000Z

    Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.

  4. Dish/stirling hybrid-receiver

    DOE Patents [OSTI]

    Mehos, Mark S. (Boulder, CO); Anselmo, Kenneth M. (Arvada, CO); Moreno, James B. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Rawlinson, K. Scott (Albuquerque, NM); Corey, John (Melrose, NY); Bohn, Mark S. (Golden, CO)

    2002-01-01T23:59:59.000Z

    A hybrid high-temperature solar receiver is provided which comprises a solar heat-pipe-receiver including a front dome having a solar absorber surface for receiving concentrated solar energy, a heat pipe wick, a rear dome, a sidewall joining the front and the rear dome, and a vapor and a return liquid tube connecting to an engine, and a fossil fuel fired combustion system in radial integration with the sidewall for simultaneous operation with the solar heat pipe receiver, the combustion system comprising an air and fuel pre-mixer, an outer cooling jacket for tangentially introducing and cooling the mixture, a recuperator for preheating the mixture, a burner plenum having an inner and an outer wall, a porous cylindrical metal matrix burner firing radially inward facing a sodium vapor sink, the mixture ignited downstream of the matrix forming combustion products, an exhaust plenum, a fossil-fuel heat-input surface having an outer surface covered with a pin-fin array, the combustion products flowing through the array to give up additional heat to the receiver, and an inner surface covered with an extension of the heat-pipe wick, a pin-fin shroud sealed to the burner and exhaust plenums, an end seal, a flue-gas diversion tube and a flue-gas valve for use at off-design conditions to limit the temperature of the pre-heated air and fuel mixture, preventing pre-ignition.

  5. Wideband Heterodyne QWIP Receiver Development for Thermonuclear Fusion Measurements

    SciTech Connect (OSTI)

    Bennett, C.A.; Buchanan, M.; Hutchinson, D.P.; Liu, H.C.; Richards, R.K.; Simpson, M.L.

    1998-11-01T23:59:59.000Z

    Oak Ridge National Laboratory (ORNL) has been developing heterodyne receivers for plasma diagnostic applications for over 20 years. One area of this work has been the development of a diagnostic system for the measurement of the energy of alpha particles created in a thermonuclear fusion reactor. These particles originate with an energy of 3.5 MeV and cool to the thermal energy of the plasma (around 15 keV) after several seconds. To measure the velocity distribution of these alpha particles, a Thomson scattering diagnostic is under development based on a high power CO{sub 2} laser at 10 microns with a heterodyne receiver. The Doppler shift generated by Thomson scattering of the alpha particles requires a wideband heterodyne receiver (greater than 10 GHz). Because Mercury-Cadimum-Telluride (MCT) detectors are limited to a bandwidth of approximately 2 GHz, a Quantum Well Infrared Photodetector (QWIP) detector was obtained from the National Research Council of Canada (NRC) and evaluated for its heterodyne performance using the heterodyne testing facility developed at ORNL.

  6. Scientific Coordination Prof. dr. ir. Michel De Paepe

    E-Print Network [OSTI]

    govern- ments) in order to reduce CO2 emissions and the use of fossil fuels. Ten years later we seeScientific Coordination Prof. dr. ir. Michel De Paepe Department of Flow, heat and combustion that fuel prices have doubled and energy saving has reached a point of economic importance in the whole span

  7. UV/IR duality in noncommutative quantum field theory

    E-Print Network [OSTI]

    Andre Fischer; Richard J. Szabo

    2010-06-16T23:59:59.000Z

    We review the construction of renormalizable noncommutative euclidean phi(4)-theories based on the UV/IR duality covariant modification of the standard field theory, and how the formalism can be extended to scalar field theories defined on noncommutative Minkowski space.

  8. Low cost multi-channel GPS receiver

    E-Print Network [OSTI]

    Painter, John H.; Tachita, R.; Ikeda, K.; Teranishi, A.; Noe, P.S.

    1988-11-29T23:59:59.000Z

    and receiver. 455 CH2675-7/88/0000-0455 $1.00 0 1988 IEEE Authorized licensed use limited to: Texas A M University. Downloaded on February 18,2010 at 16:25:37 EST from IEEE Xplore. Restrictions apply. In the section entitled Receiver Configuration...:25:37 EST from IEEE Xplore. Restrictions apply. NCO - For the carrier regeneration of the satellite signals, an NCO is used. The NCO, similar to the code generator, inputs a clock pulse of a constant frequency to control the phase of the regenerated...

  9. Implementation aspects of nonsynchronized binary receivers

    E-Print Network [OSTI]

    Wills, Wesley Mark

    1990-01-01T23:59:59.000Z

    , the signal is assumed to be transmitted across an additive white Gaussian noise (AWGN) channel. A. Likelihood Functions Assume that the modulation sequence x = (zi: z~ = kl, j = 1, 2, . . . , 1V) is trans- mitted over the AWGN channel as NRZ pulses, p... ~ ~ ~ S tart of Observations Fig. 2. Timing Error of Unsynchronized Receiver. zj+2 Prj 2 &Vs VAA[rtj I x, r] = ?, i = 1, 2, (2. 6) where r is the normalized timing error, r'/T. Finally, the density of the received vector r = frtt&rrt??N&rrtv) conditioned...

  10. Impact of Aerosols on Atmospheric Attenuation Loss in Central Receiver Systems: Preprint

    SciTech Connect (OSTI)

    Sengupta, M.; Wagner, M. J.

    2011-08-01T23:59:59.000Z

    Atmospheric attenuation loss between the heliostat field and receiver has been recognized as a significant source of loss in Central Receiver Systems. In clear sky situations, extinction of Direct Normal Irradiance (DNI) is primarily by aerosols in the atmosphere. When aerosol loading is high close to the surface the attenuation loss between heliostat and receivers is significantly influenced by the amount of aerosols present on a particular day. This study relates measured DNI to aerosol optical depths close to the surface of the earth. The model developed in the paper uses only measured DNI to estimate the attenuation between heliostat and receiver in a central receiver system. The requirement that only a DNI measurement is available potentially makes the model a candidate for widespread use.

  11. Relationship between R? bounds and asymptotic relative efficiency for quantized receivers

    E-Print Network [OSTI]

    Cimadevilla, Marcos Ortiz

    1991-01-01T23:59:59.000Z

    RELATIONSHIP BETWEEN AD BOUNDS AND ASYMPTOTIC RELATIVE EFFICIENCY FOR QUANTIZED RECEIVERS A Thesis by MARCOS ORTIZ CIMADEVILLA Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1991 Major Subject. : Electrical Engineering RELATIONSHIP BETWEEN R() BOUNDS AND ASYMPTOTIC RELATIVE EFFICIENCY FOR QUANTIZED RECEIVERS A Thesis bv MARCOS ORTIZ CIMADEVILLA Approved as to style and content by...

  12. A Dual Tone Multiple Frequency receiver using a multiplexed OTA-C filter frequency detection architecture

    E-Print Network [OSTI]

    Garcia, Gerald William

    1988-01-01T23:59:59.000Z

    A DUAL TONE MULTIPLE FREQUENCY RECEIVER USING A MULTIPLEXED OTA-C FILTER FREQUENCY DETECTION ARCHITECTURE A Thesis by GERALD WILLIAM GARCIA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1988 Major Subject: Electrical Engineering A DUAL TONE MULTIPLE FREQUENCY RECEIVER USING A MULTIPLEXED OTA-C FILTER FREQUENCY DETECTION ARCHITECTURE A Thesis by GERALD WILLIAM GARCIA Approved as to style...

  13. Measuring overall emittance of concentrator receiver pipes

    SciTech Connect (OSTI)

    Gerich, J.W.; Reitter, T.A.; Merriam, M.F.

    1980-03-01T23:59:59.000Z

    A simple and accurate method for measuring the overall emittance of receiver pipes used with cylindrical concentrators is described. Experimental measurements obtained for steel pipes with a black chrome over nickel selective surface are presented. The observed strong temperature dependence of emittance indicates that the use of room temperature emittance data will substantially overestimate collector efficiency. (SPH)

  14. Patent Issued Additional Office Actions Received

    E-Print Network [OSTI]

    Cui, Yan

    Patent Issued Additional Office Actions Received 3-12 mo. Respond to Office Action Patent attorney The patent examiner provides notification of which claims in the application have been rejected or accepted determines there are multiple inventions in 1 application. Patent Application Published 6 mo. Non

  15. Congratulations to for receiving a 2011

    E-Print Network [OSTI]

    Nehorai, Arye

    Congratulations to Lan Yang for receiving a 2011 Presidential Early Career Award for Scientists, mo permit no. 2501 About the School of Engineering & Applied Science Improving quality of life-of-the-art engineering facilities >> engineering.wustl.edu Lan Yang, PhD recipient of the 2011 Presidential Early Career

  16. Investigation of microstructure, surface morphology, and hardness properties of PtIr films by magnetron sputtering

    SciTech Connect (OSTI)

    Lee, Chao-Te; Liu, Bo-Heng; Chang, Chun-Ming; Lin, Yu-Wei [Instrument Technology Research Center, National Applied Research Laboratories, Hsinchu 300, Taiwan (China)

    2010-09-15T23:59:59.000Z

    Pt{sub 1-x}Ir{sub x} films with x varying from 22.76 to 63.25 at. % are deposited on (100) Si wafer substrates at 400 deg. C by magnetron sputtering deposition. The effects of the Ir concentration on the microstructure, morphology, and hardness of PtIr films are investigated by field emission scanning electron microscopy, x-ray diffraction, atomic force microscopy, and nanoindentation system. The columnar structures are observed by field emission scanning electron microscopy. X-ray diffraction analysis reveals that PtIr films have preferred orientation along Pt(111) when the Ir concentration is below 50.84 at. %. When the Ir content is more than 50.84 at. %, the PtIr film shifts to another preferred orientation, Ir(111). The surface morphology is analyzed by atomic force microscopy. The roughness of the PtIr films decreases with increasing Ir content. The hardness of all the PtIr films is below 20 GPa. The maximum hardness of the PtIr films is about 14.9 GPa when the Ir concentration is 57.9 at. %.

  17. A COMPARATIVE ASTROCHEMICAL STUDY OF THE HIGH-MASS PROTOSTELLAR OBJECTS NGC 7538 IRS 9 AND IRS 1

    SciTech Connect (OSTI)

    Barentine, John C.; Lacy, John H. [Department of Astronomy, University of Texas at Austin, 1 University Station, C1400, Austin, TX 78712-0259 (United States)

    2012-10-01T23:59:59.000Z

    We report the results of a spectroscopic study of the high-mass protostellar object NGC 7538 IRS 9 and compare our observations to published data on the nearby object NGC 7538 IRS 1. Both objects originated in the same molecular cloud and appear to be at different points in their evolutionary histories, offering an unusual opportunity to study the temporal evolution of envelope chemistry in objects sharing a presumably identical starting composition. Observations were made with the Texas Echelon Cross Echelle Spectrograph, a sensitive, high spectral resolution (R {lambda}/{Delta}{lambda} {approx_equal} 100,000) mid-infrared grating spectrometer. Forty-six individual lines in vibrational modes of the molecules C{sub 2}H{sub 2}, CH{sub 4}, HCN, NH{sub 3}, and CO were detected, including two isotopologues ({sup 13}CO, {sup 12}C{sup 18}O) and one combination mode ({nu}{sub 4} + {nu}{sub 5} C{sub 2}H{sub 2}). Fitting synthetic spectra to the data yielded the Doppler shift, excitation temperature, Doppler b parameter, column density, and covering factor for each molecule observed; we also computed column density upper limits for lines and species not detected, such as HNCO and OCS. We find differences among spectra of the two objects likely attributable to their differing radiation and thermal environments. Temperatures and column densities for the two objects are generally consistent, while the larger line widths toward IRS 9 result in less saturated lines than those toward IRS 1. Finally, we compute an upper limit on the size of the continuum-emitting region ({approx}2000 AU) and use this constraint and our spectroscopy results to construct a schematic model of IRS 9.

  18. SESAM FT-IR: A Comparison of the R&D Workhorse to Standard Emission...

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

    SESAM FT-IR: A Comparison of the R&D Workhorse to Standard Emission Benches SESAM FT-IR: A Comparison of the R&D Workhorse to Standard Emission Benches Data for a number of...

  19. Novel Techniques for Single-Pulse Spectrum and Pulsewidth Measurements for an IR-FEL

    E-Print Network [OSTI]

    Leemans, W.P.

    2011-01-01T23:59:59.000Z

    ofthe LBL/Stanford diagnostics. FEL Thespectral andtemporalMeasurements for an IR-FEL W.P. Leemans, J.A. Edighoffer, K-Measurements for an IR-FEL* W. P. Leemans, J. A. Edighoffer,

  20. The Role of Ir in Ternary Rh-Based Catalysts for Syngas Conversion...

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

    The Role of Ir in Ternary Rh-Based Catalysts for Syngas Conversion to C2+ Oxygenates. The Role of Ir in Ternary Rh-Based Catalysts for Syngas Conversion to C2+ Oxygenates....

  1. Full-wave receiver architecture for the homodyne motion sensor

    DOE Patents [OSTI]

    Haugen, Peter C; Dallum, Gregory E; Welsh, Patrick A; Romero, Carlos E

    2013-11-19T23:59:59.000Z

    A homodyne motion sensor or detector based on ultra-wideband radar utilizes the entire received waveform through implementation of a voltage boosting receiver. The receiver includes a receiver input and a receiver output. A first diode is connected to the receiver output. A first charge storage capacitor is connected from between the first diode and the receiver output to ground. A second charge storage capacitor is connected between the receiver input and the first diode. A second diode is connected from between the second charge storage capacitor and the first diode to ground. The dual diode receiver performs voltage boosting of a RF signal received at the receiver input, thereby enhancing receiver sensitivity.

  2. A NEW SOLAR THERMAL RECEIVER UTILIZING SMALL PARTICLES

    E-Print Network [OSTI]

    Hunt, Arlon J.

    2011-01-01T23:59:59.000Z

    iuision, Ext. 6782 A New Solar Thermal Receiver UtilizingI \\D \\. }J F--' A NEW SOLAR THERMAL RECEIVER UTILIZING SMALL94720 ABSTRACT A new type of solar thermal receiver is being

  3. IR OPTICS MEASUREMENT WITH LINEAR COUPLING'S ACTION-ANGLE PARAMETERIZATION.

    SciTech Connect (OSTI)

    LUO, Y.; BAI, M.; PILAT, R.; SATOGATA, T.; TRBOJEVIC, D.

    2005-05-16T23:59:59.000Z

    A parameterization of linear coupling in action-angle coordinates is convenient for analytical calculations and interpretation of turn-by-turn (TBT) beam position monitor (BPM) data. We demonstrate how to use this parameterization to extract the twiss and coupling parameters in interaction regions (IRs), using BPMs on each side of the long IR drift region. The example of TBT BPM analysis was acquired at the Relativistic Heavy Ion Collider (RHIC), using an AC dipole to excite a single eigenmode. Besides the full treatment, a fast estimate of beta*, the beta function at the interaction point (IP), is provided, along with the phase advance between these BPMs. We also calculate and measure the waist of the beta function and the local optics.

  4. Technical safety requirements (TSR) for waste receiving and processing (WRAP) facility

    SciTech Connect (OSTI)

    Weidert, J.R.

    1997-11-18T23:59:59.000Z

    The scope of this TSR document is based on the WRAP Final Safety Analysis Report (HNF-SD-W026-SAR-002) and supporting documents. The administrative controls set forth in this TSR document are derived from the WRAP Final Safety Analysis Report.

  5. Graduation Requirements and Procedures Graduation Requirements and

    E-Print Network [OSTI]

    /Degree Audit (DARS) or contact the department offering the major. Graduation Average Requirement The minimum

  6. Signal processor for processing ultrasonic receiver signals

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1980-01-01T23:59:59.000Z

    A signal processor is provided which uses an analog integrating circuit in conjunction with a set of digital counters controlled by a precision clock for sampling timing to provide an improved presentation of an ultrasonic transmitter/receiver signal. The signal is sampled relative to the transmitter trigger signal timing at precise times, the selected number of samples are integrated and the integrated samples are transferred and held for recording on a strip chart recorder or converted to digital form for storage. By integrating multiple samples taken at precisely the same time with respect to the trigger for the ultrasonic transmitter, random noise, which is contained in the ultrasonic receiver signal, is reduced relative to the desired useful signal.

  7. THERMAL FLUID MODELING OF BEPCII IR QUADRUPOLE MAGNET CRYOSTAT.

    SciTech Connect (OSTI)

    WANG.L.; TANG,H.M.; ZHANG,X.B.; YANG,G.D.; JIA,L.X.

    2004-05-11T23:59:59.000Z

    A pair of superconducting interaction region quadrupole magnets for BEPCII was designed and fabricated at Brookhaven National Laboratory, USA. The cryogenic system for the IR magnets was designed at Harbin Institute of Technology, China. This paper provides the results of thermal fluid modeling for the magnet cryostat. The numerical analyses were carried out for two types of cooling methods, the subcooled liquid helium and the supercritical helium flow. The pressure and temperature changes in the cooling circuits are given.

  8. Seventy-three New Mexico students receive Los Alamos Employees...

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

    Seventy-three students receive LAESF scholarships Seventy-three New Mexico students receive Los Alamos Employees' Scholarship Fund scholarships Raymond Fasano of Bernalillo High...

  9. Secretary Chu Announces 150 Students to Receive Graduate Fellowships...

    Energy Savers [EERE]

    150 Students to Receive Graduate Fellowships in Science, Mathematics and Engineering Secretary Chu Announces 150 Students to Receive Graduate Fellowships in Science, Mathematics...

  10. MAY 14, 2008 Chemistry and environmental science professor receives Carroll

    E-Print Network [OSTI]

    Reid, Scott A.

    MAY 14, 2008 Chemistry and environmental science professor receives Carroll College faculty award WAUKESHA, WIS.-- An associate professor of chemistry and environmental science has received an annual

  11. Los Alamos National Laboratory employees receive Pollution Prevention...

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

    Pollution Prevention Awardees Los Alamos National Laboratory employees receive Pollution Prevention Awards Nearly 400 employees on 47 teams received Pollution Prevention awards for...

  12. Sandia National Laboratories: Sandia Receives Award for Electronics...

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

    Sandia Receives Award for Electronics Stewardship September 19, 2011 electronics stewardship award ALBUQUERQUE, N.M. - Sandia National Laboratories has received an award for...

  13. Highly linear SAW-less receiver design techniques for CDMA

    E-Print Network [OSTI]

    Kim, Nam Soo

    2010-01-01T23:59:59.000Z

    Pyo, A low power RF direct-conversion receiver/transmitterconsiderations for direct-conversion receivers, IEEE Trans.2009. [50] A. Abidi, Direct-conversion radio transceivers

  14. An RF Receiver Architecture for Intra-Band Carrier Aggregation

    E-Print Network [OSTI]

    Hwu, Sy-Chyuan

    2013-01-01T23:59:59.000Z

    Noise for Low-Power Direct-Conversion Receivers, IEEE J.system-on-chip design. Direct?Conversion Receiver LPF ADC

  15. Project Profile: High-Efficiency Receivers for Supercritical...

    Energy Savers [EERE]

    Efficiency Receivers for Supercritical Carbon Dioxide Cycles Project Profile: High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles Brayton logo Brayton Energy, under...

  16. Y-12 employees receive awards recognizing excellence in nuclear...

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

    receive ... Y-12 employees receive awards recognizing excellence in nuclear weapons program Posted: October 6, 2014 - 9:09am Defense Programs 2013 Award of Excellence recipient...

  17. Broadband RF Front-End Design for Multi-Standard Receiver with High-Linearity and Low-Noise Techniques

    E-Print Network [OSTI]

    Kim, Ju Sung

    2012-02-14T23:59:59.000Z

    Future wireless communication devices must support multiple standards and features on a single-chip. The trend towards software-defined radio requires flexible and efficient RF building blocks which justifies the adoption of broadband receiver front...

  18. Rational production of veneer by IR-heating of green wood during peeling: Modeling experiments

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (0)3 85 59 53 85 E-mail: anna.dupleix@ensam.eu Abstract Heating green wood logs by infrared (IR-line IR heating system installed on the peeling lathe. Keywords: green wood; heating; infrared; modelingRational production of veneer by IR-heating of green wood during peeling: Modeling experiments Anna

  19. Uncooled thin film pyroelectric IR detector with aerogel thermal isolation

    SciTech Connect (OSTI)

    Ruffner, J.A.; Clem, P.G.; Tuttle, B.A. [and others

    1998-01-01T23:59:59.000Z

    Uncooled pyroelectric IR imaging systems, such as night vision goggles, offer important strategic advantages in battlefield scenarios and reconnaissance surveys. Until now, the current technology for fabricating these devices has been limited by low throughput and high cost which ultimately limit the availability of these sensor devices. We have developed and fabricated an alternative design for pyroelectric IR imaging sensors that utilizes a multilayered thin film deposition scheme to create a monolithic thin film imaging element on an active silicon substrate for the first time. This approach combines a thin film pyroelectric imaging element with a thermally insulating SiO{sub 2} aerogel thin film to produce a new type of uncooled IR sensor that offers significantly higher thermal, spatial, and temporal resolutions at a substantially lower cost per unit. This report describes the deposition, characterization and optimization of the aerogel thermal isolation layer and an appropriate pyroelectric imaging element. It also describes the overall integration of these components along with the appropriate planarization, etch stop, adhesion, electrode, and blacking agent thin film layers into a monolithic structure. 19 refs., 8 figs., 6 tabs.

  20. UV/IR mode mixing and the CMB

    SciTech Connect (OSTI)

    Palma, Gonzalo A. [Instituut-Lorentz for Theoretical Physics, Universiteit Leiden, NL-2300 RA Leiden (Netherlands); Physics Department, FCFM, Universidad de Chile, Blanco Encalada 2008, Santiago (Chile); Patil, Subodh P. [Humboldt Universitaet zu Berlin, Institut fuer Physik, Newtonstrasse 15, D-12489 Berlin (Germany)

    2009-10-15T23:59:59.000Z

    It is well understood that spatial noncommutativity, if indeed realized in nature, is a phenomenon whose effects are not just felt at energy scales comparable to the noncommutativity scale. Loop effects can transmit signatures of any underlying noncommutativity to macroscopic scales (a manifestation of a phenomenon that has come to be known as UV/IR mode mixing) and offer a potential lever to constrain the amount of noncommutativity present in nature, if present at all. Field theories defined on noncommutative spaces (realized in string theory when D-branes are coupled to backgrounds of nontrivial RR background flux), can exhibit strong UV/IR mode mixing, manifesting in a nonlocal one-loop effective action. In the context of inflation in the presence of any background noncommutativity, we demonstrate how this UV/IR mixing at the loop level can allow us to place severe constraints on the scale of noncommutativity if we presume inflation is responsible for large-scale structure. We demonstrate that any amount of noncommutativity greatly suppresses the cosmic microwave background power at all observable scales, independent of the scale of inflation, and independent of whether or not the noncommutativity tensor redshifts during inflation, therefore nullifying a very salient and successful prediction of inflation.

  1. Fuel Cell Manufacturing Diagnostic Techniques: IR Thermography with Reactive Flow through Excitation

    SciTech Connect (OSTI)

    Manak, A. J.; Ulsh, M.; Bender, G.

    2012-01-01T23:59:59.000Z

    While design and material considerations for PEMFCs have a large impact on cost, it is also necessary to consider a transition to high volume production of fuel cell systems, including MEA components, to enable economies of scale and reduce per unit cost. One of the critical manufacturing tasks is developing and deploying techniques to provide in?process measurement of fuel cell components for quality control. This effort requires a subsidiary task: The study of the effect of manufacturing defects on performance and durability with the objective to establish validated manufacturing tolerances for fuel cell components. This work focuses on the development of a potential quality control method for gas diffusion electrodes (GDEs). The method consists of infrared (IR) thermography combined with reactive flow through (RFT) excitation. Detection of catalyst loading reduction defects in GDE catalyst layers will be presented.

  2. Fabrication of wideband optoelectronic differential amplifier using a balanced receiver on a semi-insulating GaAs substrate

    E-Print Network [OSTI]

    Choi, Kyoo Nam

    1989-01-01T23:59:59.000Z

    photocurrent flow- ing between the electrodes Iz, given by Is = (oE)WD = (qIr?nE)WD = (qnVs)WD I, = q( h )( L )=I ( L ) P~ p rE p rE (27) (26) 14 where I s is the primary photocurrent and E is the electric field inside the photocon- ductor. Also... of inductive(capacitive circuit elements and simulate overall output response. Design of Balanced Receiver It will be necessary to have two photo-conductive gaps, an output terminal pad and three pads to apply dual DC biases (positive, neutral, negative...

  3. Required Annual Notices

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

    Annual Notices The Women's Health and Cancer Rights Act of 1998 (WHCRA) The medical programs sponsored by LANS will not restrict benefits if you or your dependent receives...

  4. FACSIM/MRS-1: Cask receiving and consolidation performance assessment

    SciTech Connect (OSTI)

    Lotz, T.L.; Shay, M.R.

    1987-06-01T23:59:59.000Z

    A simulation analysis was completed to assess the performance of the shipping cask receiving and spent-fuel handling, consolidation and canistering operations of the Monitored Retrievable Storage (MRS) facility. One purpose of this evaluation was to estimate the limits of MRS operational capabilities and factors leading to those limitations. The model used to obtain the performance assessment, FACSIM/MRS-1, is one of two components of the FACSIM model developed by PNL's simulation effort for the nuclear waste-handling facility. FACSIM/MRS-1 provides the user with information about lag-storage requirements, machine use, cask queues, welder queues, and cask process and cask turnaround times. The model can help determine the effect that the following activities have on operating efficiency: (1) receiving multiple cask shipments, when rail-cask or truck-cask shipments arrive at the facility in groups of two or more, and (2) operating the facility five days per week, three shifts per day or seven days per week, three shifts per day for any conditions. In addition, sensitivity to equipment failure frequency and the time needed for equipment repair can be studied. Information on the above operating characteristics may be obtained for any spent-fuel rate, any split of shipments between truck and rail transport, or any split of boiling water reactor/pressurized water reactor fuel.

  5. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, B.P.; Sleefe, G.E.; Striker, R.P.

    1993-02-23T23:59:59.000Z

    A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  6. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, Bruce P. (Sandoval County, NM); Sleefe, Gerard E. (Bernalillo County, NM); Striker, Richard P. (Bernalillo County, NM)

    1993-01-01T23:59:59.000Z

    A borehole seismic tool including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric meter in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  7. LM Receives Sustainability Award | Department of Energy

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

    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 DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLED Lighting5-15 LM 05-15FIMSLM Receives

  8. Tom Harper receives cyber security award

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solidSynthesisAppliances Tips:Harper receives cyber security

  9. WIPP receives 9,000th shipment

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsing Maps1DOE Awards Contract for19,WIPP receives 9,000th

  10. Fry receives Charles W. Briggs Award

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.Newof Energy ForrestalPrinceton Plasma Physics09,Fry receives

  11. RDC receives award for Accelerate Program

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.70COMMUNITYResponses:December 11, 2014 PageRDC Receives Award

  12. Solar central receiver heliostat reflector assembly

    DOE Patents [OSTI]

    Horton, Richard H. (Schenectady, NY); Zdeb, John J. (Clifton Park, NY)

    1980-01-01T23:59:59.000Z

    A heliostat reflector assembly for a solar central receiver system comprises a light-weight, readily assemblable frame which supports a sheet of stretchable reflective material and includes mechanism for selectively applying tension to and positioning the sheet to stretch it to optical flatness. The frame is mounted on and supported by a pipe pedestal assembly that, in turn, is installed in the ground. The frame is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e. central receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The frame may include a built-in system for testing for optical flatness of the reflector. The preferable geometric configuration of the reflector is octagonal; however, it may be other shapes, such as hexagonal, pentagonal or square. Several different embodiments of means for tensioning and positioning the reflector to achieve optical flatness are disclosed. The reflector assembly is based on the stretch frame concept which provides an extremely light-weight, simple, low-cost reflector assembly that may be driven for positioning and tracking by a light-weight, inexpensive drive system.

  13. 1 MWt bench model solar receiver test program J. Gintz, D. Bartlett and R. Zentner

    E-Print Network [OSTI]

    Boyer, Edmond

    and solar testing of a cavity receiver using metal gas-in-tube heat exchangers. The design represents performed to derive the required high quality in heat exchanger panels. Subcontractors skilled in steel and groups of heliostats. First solar heating was accomplished on October 27, 1978. The test program

  14. Advanced Thermal Storage for Central Receivers with Supercritical Coolants

    SciTech Connect (OSTI)

    Kelly, Bruce D.

    2010-06-15T23:59:59.000Z

    The principal objective of the study is to determine if supercritical heat transport fluids in a central receiver power plant, in combination with ceramic thermocline storage systems, offer a reduction in levelized energy cost over a baseline nitrate salt concept. The baseline concept uses a nitrate salt receiver, two-tank (hot and cold) nitrate salt thermal storage, and a subcritical Rankine cycle. A total of 6 plant designs were analyzed, as follows: Plant Designation Receiver Fluid Thermal Storage Rankine Cycle Subcritical nitrate salt Nitrate salt Two tank nitrate salt Subcritical Supercritical nitrate salt Nitrate salt Two tank nitrate salt Supercritical Low temperature H2O Supercritical H2O Two tank nitrate salt Supercritical High temperature H2O Supercritical H2O Packed bed thermocline Supercritical Low temperature CO2 Supercritical CO2 Two tank nitrate salt Supercritical High temperature CO2 Supercritical CO2 Packed bed thermocline Supercritical Several conclusions have been drawn from the results of the study, as follows: 1) The use of supercritical H2O as the heat transport fluid in a packed bed thermocline is likely not a practical approach. The specific heat of the fluid is a strong function of the temperatures at values near 400 C, and the temperature profile in the bed during a charging cycle is markedly different than the profile during a discharging cycle. 2) The use of supercritical CO2 as the heat transport fluid in a packed bed thermocline is judged to be technically feasible. Nonetheless, the high operating pressures for the supercritical fluid require the use of pressure vessels to contain the storage inventory. The unit cost of the two-tank nitrate salt system is approximately $24/kWht, while the unit cost of the high pressure thermocline system is nominally 10 times as high. 3) For the supercritical fluids, the outer crown temperatures of the receiver tubes are in the range of 700 to 800 C. At temperatures of 700 C and above, intermetallic compounds can precipitate between, and within, the grains of nickel alloys. The precipitation leads to an increase in tensile strength, and a decrease in ductility. Whether the proposed tube materials can provide the required low cycle fatigue life for the supercritical H2O and CO2 receivers is an open question. 4) A ranking of the plants, in descending order of technical and economic feasibility, is as follows: i) Supercritical nitrate salt and baseline nitrate salt: equal ratings ii) Low temperature supercritical H2O iii) Low temperature supercritical CO2 iv) High temperature supercritical CO2 v) High temperature supercritical H2O 5) The two-tank nitrate salt thermal storage systems are strongly preferred over the thermocline systems using supercritical heat transport fluids.

  15. Hydrocarbon emission features in the IR spectra of warm supergiants

    SciTech Connect (OSTI)

    Buss, R.H. Jr.; Cohen, M.; Tielens, A.G.G.M.; Werner, M.W.; Bregman, J.D. (NASA, Ames Research Center, Moffett Field, CA (USA))

    1990-12-01T23:59:59.000Z

    Observations in the 3-13 micron range are presented for two objects possessing the unidentified 21-micron feature, IRAS 22272 and IRAS 07134, which were obtained in the course of search for circumstellar aromatic hydrocarbon (PAH) emission bands. The 3.3 and 6.2 micron bands are attributed to circumstellar PAH molecules, and the 6-9 micron plateau and the 12- and 6.9-micron lines are attributed to larger, aromatic hydrocarbon clusters. These are the coolest stars known to exhibit the IR emission bands. The 21-micron feature is conjectured to also originate in a carbonaceous carrier. 29 refs.

  16. Large exchange bias enhancement in (Pt(or Pd)/Co)/IrMn/Co trilayers with ultrathin IrMn thanks to interfacial Cu dusting

    SciTech Connect (OSTI)

    Vinai, G. [SPINTEC, UMR 8191 CEA/CNRS/UJF/Grenoble-INP, CEA/INAC, 17, rue des Martyrs, 38054 Grenoble (France); Crocus Technology, 4 Place Robert Schuman, 38054 Grenoble (France); Moritz, J. [Institut Jean Lamour, UMR 7198 CNRS - Universit de Lorraine, Bd des Aiguillettes, BP 70239, F-54506 Vandoeuvre-les-Nancy Cedex (France); Bandiera, S. [Crocus Technology, 4 Place Robert Schuman, 38054 Grenoble (France); Prejbeanu, I. L.; Dieny, B. [SPINTEC, UMR 8191 CEA/CNRS/UJF/Grenoble-INP, CEA/INAC, 17, rue des Martyrs, 38054 Grenoble (France)

    2014-04-21T23:59:59.000Z

    The magnitude of exchange bias (H{sub ex}) at room temperature can be significantly enhanced in IrMn/Co and (Pt(or Pd)/Co)/IrMn/Co structures thanks to the insertion of an ultrathin Cu dusting layer at the IrMn/Co interface. The combination of trilayer structure and interfacial Cu dusting leads to a three-fold increase in H{sub ex} as compared to the conventional IrMn/Co bilayer structure, with an increased blocking temperature (T{sub B}) and a concave curvature of the temperature dependence H{sub ex}(T), ideal for improved Thermally Assisted-Magnetic Random Access Memory storage layer. This exchange bias enhancement is ascribed to a reduction of the spin frustration at the IrMn/Co interface thanks to interfacial Cu addition.

  17. The Effect of Radiation Timing on Patients With High-Risk Features of Parameningeal Rhabdomyosarcoma: An Analysis of IRS-IV and D9803

    SciTech Connect (OSTI)

    Spalding, Aaron C., E-mail: Aaron.Spalding@nortonhealthcare.org [Kosair Children's Hospital and Brain Tumor Center, Louisville, Kentucky (United States); Hawkins, Douglas S. [Division of Hematology/Oncology, Seattle Children's Hospital, and Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington (United States); Donaldson, Sarah S. [Department of Radiation Oncology, Stanford University Medical Center, Stanford, California (United States); Anderson, James R.; Lyden, Elizabeth [University of Nebraska Medical Center, Omaha, Nebraska (United States); Laurie, Fran [Quality Assurance Review Center, Providence, Rhode Island and Seattle, Washington (United States); Wolden, Suzanne L. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Arndt, Carola A.S. [Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota (United States); Michalski, Jeff M. [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri (United States)

    2013-11-01T23:59:59.000Z

    Purpose: Radiation therapy remains an essential treatment for patients with parameningeal rhabdomyosarcoma (PMRMS), and early radiation therapy may improve local control for patients with intracranial extension (ICE). Methods and Materials: To address the role of radiation therapy timing in PMRMS in the current era, we reviewed the outcome from 2 recent clinical trials for intermediate-risk RMS: Intergroup Rhabdomyosarcoma Study (IRS)-IV and Children's Oncology Group (COG) D9803. The PMRMS patients on IRS-IV with any high-risk features (cranial nerve palsy [CNP], cranial base bony erosion [CBBE], or ICE) were treated immediately at day 0, and PMRMS patients without any of these 3 features received week 6-9 radiation therapy. The D9803 PMRMS patients with ICE received day 0 X-Ray Therapy (XRT) as well; however, those with either CNP or CBBE had XRT at week 12. Results: Compared with the 198 PMRMS patients from IRS-IV, the 192 PMRMS patients from D9803 had no difference (P<.05) in 5-year local failure (19% vs 19%), failure-free-survival (70% vs 67%), or overall survival (75% vs 73%) in aggregate. The 5-year local failure rates by subset did not differ when patients were classified as having no risk features (None, 15% vs 19%, P=.25), cranial nerve palsy/cranial base of skull erosion (CNP/CBBE, 15% vs 28%, P=.22), or intracranial extension (ICE, 21% vs 15%, P=.27). The D9083 patients were more likely to have received initial staging by magnetic resonance imaging (71% vs 53%). Conclusions: These data support that a delay in radiation therapy for high-risk PMRMS features of CNP/CBBE does not compromise clinical outcomes.

  18. Dish Stirling Solar-Receiver Combustor Test Program

    SciTech Connect (OSTI)

    Bankston, C.P.; Back, L.H.

    1981-08-15T23:59:59.000Z

    The overall objectives of the program were to evluate and verify the operational and energy transfer characteristics of the Dish Stirling Solar Receiver (DSSR) combustor/heat exchanger system. The DSSR is designed to operate with fossil fuel augmentation utilizing a swirl combustor and cross flow heat exchanger consisting of a single row of 48 closely spaced tubes that are curved into a conical shape. In the present study the performance of the combustor/heat exchanger system without a Stirling engine has been studied over a range of operating conditions and output levels using water as the working fluid. Results show that the combustor may be started under cold conditions, controlled safely, and operated at a constant air/fuel ratio (10% excess air) over the required range of firing rates. Furthermore, nondimensional heat transfer coefficients based on total heat transfer are plotted versus Reynolds number and compared with literature data taken for single rows of closely spaced tubes perpendicular to cross flow. The data show enhanced heat transfer for the present geometry and test conditions. Analysis of the results shows that the present system will meet specified thermal requirements, thus verifying the feasibility of the DSSR combustor design for final prototype fabrication.

  19. The requirements discovery process

    SciTech Connect (OSTI)

    Bahill, A.T. [Univ. of Arizona, Tucson, AZ (United States). Systems and Industrial Engineering; Dean, F.F. [Sandia National Lab., Albuquerque, NM (United States)

    1997-02-01T23:59:59.000Z

    Cost and schedule overruns are often caused by poor requirements that are produced by people who do not understand the requirement process. This paper provides a high-level overview of the requirements discovery process.

  20. BER Requirements Review 2015

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

    Attendees 2015 ASCR Requirements Review 2015 Previous Reviews Requirements Review Reports Case Studies News & Publications ESnet News Publications and Presentations Galleries ESnet...

  1. ASCR Requirements Review 2015

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

    Requirements Review 2015 ASCR Attendees 2015 Previous Reviews Requirements Review Reports Case Studies News & Publications ESnet News Publications and Presentations Galleries ESnet...

  2. Improved high temperature solar absorbers for use in Concentrating Solar Power central receiver applications.

    SciTech Connect (OSTI)

    Stechel, Ellen Beth; Ambrosini, Andrea; Hall, Aaron Christopher; Lambert, Timothy L.; Staiger, Chad Lynn; Bencomo, Marlene

    2010-09-01T23:59:59.000Z

    Concentrating solar power (CSP) systems use solar absorbers to convert the heat from sunlight to electric power. Increased operating temperatures are necessary to lower the cost of solar-generated electricity by improving efficiencies and reducing thermal energy storage costs. Durable new materials are needed to cope with operating temperatures >600 C. The current coating technology (Pyromark High Temperature paint) has a solar absorptance in excess of 0.95 but a thermal emittance greater than 0.8, which results in large thermal losses at high temperatures. In addition, because solar receivers operate in air, these coatings have long term stability issues that add to the operating costs of CSP facilities. Ideal absorbers must have high solar absorptance (>0.95) and low thermal emittance (<0.05) in the IR region, be stable in air, and be low-cost and readily manufacturable. We propose to utilize solution-based synthesis techniques to prepare intrinsic absorbers for use in central receiver applications.

  3. Charles "Chuck" Farrar to receive DeMichele Award

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

    Farrar to receive DeMichele Award Charles "Chuck" Farrar to receive DeMichele Award The award is presented for demonstrated "exemplary service and support of promoting the science...

  4. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles...

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

    Receivers for Supercritical Carbon Dioxide Cycles - FY12 Q4 High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles - FY12 Q4 This document summarizes the progress of...

  5. The growth of Tilapia aurea in ponds receiving laying hen wastes

    E-Print Network [OSTI]

    Burns, Robert Paul

    1978-01-01T23:59:59.000Z

    be seen in Figure 8. The most significant feature of this figure is the trace amounts of nitrates present in the pond receiving the wastes from 200 laying hens (A-10) during the month of August. Higher phyto- plankton densities in that pond (Figure 7...THE GROWTH OF TILAPIA AUREA IN PONDS RECEIVING LAYING HEN WASTES A Thesis by ROBERT PAUL BURNS Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of. MASTER OF SCIENCE December...

  6. STEAM RECEIVER MODELS FOR SOLAR DISH CONCENTRATORS: TWO MODELS COMPARED

    E-Print Network [OSTI]

    response of a parabolic dish steam cavity receiver. Both approaches are based on a heat transfer model

  7. NEJC Board Member Receives 2015 National Planning Excellence Award

    Broader source: Energy.gov [DOE]

    National Environmental Justice Conference, Inc. Board of Directors Member Receives American Planning Association 2015 National Planning Excellence Award

  8. Platinum Monolayer on IrFe CoreShell Nanoparticle Electrocatalysts for the Oxygen Reduction Reaction

    SciTech Connect (OSTI)

    Sasaki K.; Kuttiyiel, K.A.; Su, D.; Adzic, R.R.

    2012-04-19T23:59:59.000Z

    We synthesized high activity and stability platinum monolayer on IrFe core-shell nanoparticle electrocatalysts. Carbon-supported IrFe core-shell nanoparticles were synthesized by chemical reduction and subsequent thermal annealing. The formation of Ir shells on IrFe solid-solution alloy cores has been verified by scanning transmission electron microscopy coupled with energy-loss spectroscopy (EELS) and in situ X-ray absorption spectroscopy. The Pt monolayers were deposited on IrFe core-shell nanoparticles by galvanic replacement of underpotentially deposited Cu adatoms on the Ir shell surfaces. The specific and Pt mass activities for the ORR on the Pt monolayer on IrFe core-shell nanoparticle electrocatalyst are 0.46 mA/cm{sup 2} and 1.1 A/mg{sub Pt}, which are much higher than those on a commercial Pt/C electrocatalyst. High durability of Pt{sub ML}/IrFe/C has also been demonstrated by potential cycling tests. These high activity and durability observed can be ascribed to the structural and electronic interaction between the Pt monolayer and the IrFe core-shell nanoparticles.

  9. Estimation of Convection Loss from Paraboloidal Dish Cavity Receivers

    E-Print Network [OSTI]

    In general, cavity receivers employed in the sun-tracking paraboloidal dish concentrator are subjected the numerical investigation of natural and combined convection loss from cavity receivers employed in solar is a significant source of energy loss from thermal receivers used with dish solar concentrators. This paper

  10. IR-4 Ornamental Horticulture Program Research Report Form

    E-Print Network [OSTI]

    Lieth, J. Heinrich

    . The plants in the Control group received no V-10142. The bulbs were pot- cooled for 3 weeks and then grown the pots are set in a cool location where the plants are waiting to emerge. Some growers cool their potted management) and Priyasheila Singh (plant culture, data collection). The materials being tested were supplied

  11. Sandia Energy - Central Receiver Test Facility

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand RequirementsCoatings Initiated at PNNL's Sequim BayCapture HomeCenter forCentral

  12. 3. MATERIAL CERTIFICATIONS REQUIRED NO RADIOGRAPHY REQUIRED.

    E-Print Network [OSTI]

    McDonald, Kirk

    SHALL BE DYE PENETRANT INSPECTED. ASME SECTION IX. NO CODE STAMP REQUIRED. 1. WELDING TO BE PERFORMED is property of 1. ALL DIMENSIONS ARE IN INCHES 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M 3

  13. Legal Business Name and DBA Name (as applicable) Permanent Business Address (number & street or P.O. Box) (Required)

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Legal Business Name and DBA Name (as applicable) Permanent Business Address (number & street or P) Permanent Remittance (Address (if different from Business Address) (Required) City, State and Zip code Email, Santa Cruz Payee Setup Request (204) Required in lieu of IRS W-9 when doing business with the State

  14. Mechanism of Homogeneous Ir(III) Catalyzed Regioselective Arylation of Olefins

    E-Print Network [OSTI]

    Goddard III, William A.

    . On the basis of this mechanism, we suggest new catalysts expected to have improved activity. Initiation by reduction. Recently, Matsumoto2-4 and Periana5 reported the synthesis of a novel Ir complex, [Ir (turn- over-frequency (TOF) of 10-3 s-1 at 200 C), but there are also problems with selectivity, cost

  15. A Comparison of LSA, WordNet and PMI-IR for Predicting User Click Behavior

    E-Print Network [OSTI]

    Hornof, Anthony

    A Comparison of LSA, WordNet and PMI-IR for Predicting User Click Behavior Ishwinder Kaur. This paper discusses a comparison of three semantic systems--LSA, WordNet and PMI-IR--to evaluate their performance in predicting the link that people would select given an information goal and a webpage. PMI

  16. The Nature of OH/IR Stars in the Galactic Centre Region Joris Blommaert,

    E-Print Network [OSTI]

    Sjouwerman, Lornt

    The Nature of OH/IR Stars in the Galactic Centre Region Joris Blommaert, Sterrewacht Leiden, P, 439 92 Onsala, Sweden Abstract. We report on infrared observations of stars in a field of 30 0 near distinct populations of OH/IR stars near the galactic centre is addressed. The dusttogas mass loss ratio

  17. Sodium reflux pool-boiler solar receiver on-sun test results

    SciTech Connect (OSTI)

    Andraka, C E; Moreno, J B; Diver, R B; Moss, T A [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States)

    1992-06-01T23:59:59.000Z

    The efficient operation of a Stirling engine requires the application of a high heat flux to the relatively small area occupied by the heater head tubes. Previous attempts to couple solar energy to Stirling engines generally involved directly illuminating the heater head tubes with concentrated sunlight. In this study, operation of a 75-kW{sub t} sodium reflux pool-boiler solar receiver has been demonstrated and its performance characterized on Sandia's nominal 75-kW{sub t} parabolic-dish concentrator, using a cold-water gas-gap calorimeter to simulate Stirling engine operation. The pool boiler (and more generally liquid-metal reflux receivers) supplies heat to the engine in the form of latent heat released from condensation of the metal vapor on the heater head tubes. The advantages of the pool boiler include uniform tube temperature, leading to longer life and higher temperature available to the engine, and decoupling of the design of the solar absorber from the engine heater head. The two-phase system allows high input thermal flux, reducing the receiver size and losses, therefore improving system efficiency. The receiver thermal efficiency was about 90% when operated at full power and 800{degree}C. Stable sodium boiling was promoted by the addition of 35 equally spaced artificial cavities in the wetted absorber surface. High incipient boiling superheats following cloud transients were suppressed passively by the addition of small amounts of xenon gas to the receiver volume. Stable boiling without excessive incipient boiling superheats was observed under all operating conditions. The receiver developed a leak during performance evaluation, terminating the testing after accumulating about 50 hours on sun. The receiver design is reported here along with test results including transient operations, steady-state performance evaluation, operation at various temperatures, infrared thermography, x-ray studies of the boiling behavior, and a postmortem analysis.

  18. FES Requirements Review 2014

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

    Review 2014 FES Attendees 2014 BES Requirements Review 2014 Requirements Review Reports Case Studies Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638...

  19. BES Requirements Review 2014

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

    Review 2014 BES Requirements Review 2014 BES Attendees 2014 Requirements Review Reports Case Studies Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638...

  20. The development of in-situ calibration method for divertor IR thermography in ITER

    SciTech Connect (OSTI)

    Takeuchi, M.; Sugie, T.; Ogawa, H.; Takeyama, S.; Itami, K. [Japan Atomic Energy Agency (Japan)

    2014-08-21T23:59:59.000Z

    For the development of the calibration method of the emissivity in IR light on the divertor plate in ITER divertor IR thermography system, the laboratory experiments have been performed by using IR instruments. The calibration of the IR camera was performed by the plane black body in the temperature of 100600 degC. The radiances of the tungsten heated by 280 degC were measured by the IR camera without filter (2.55.1 ?m) and with filter (2.95 ?m, 4.67 ?m). The preliminary data of the scattered light of the laser of 3.34 ?m that injected into the tungsten were acquired.

  1. Allocating Reserve Requirements (Presentation)

    SciTech Connect (OSTI)

    Milligan, M.; Kirby, B.; King, J.

    2011-07-01T23:59:59.000Z

    This presentation provides an overview of present and possible future ways to allocate and assign benefits for reserve requirements.

  2. BER Science Network Requirements

    E-Print Network [OSTI]

    Dart, Eli

    2011-01-01T23:59:59.000Z

    Management and analysis of geospatial data involvingmanipulation, analysis, and display of geospatial data,Analysis and interpretation require mapping geospatial

  3. FES Science Network Requirements

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    FES Science Network Requirements Report of the Fusion Energy Sciences Network Requirements Workshop Conducted March 13 and 14, 2008 #12;FES Science Network Requirements Workshop Fusion Energy Sciences Program Office, DOE Office of Science Energy Sciences Network Gaithersburg, MD March 13 and 14, 2008 ESnet

  4. Radiant energy receiver having improved coolant flow control means

    DOE Patents [OSTI]

    Hinterberger, H.

    1980-10-29T23:59:59.000Z

    An improved coolant flow control for use in radiant energy receivers of the type having parallel flow paths is disclosed. A coolant performs as a temperature dependent valve means, increasing flow in the warmer flow paths of the receiver, and impeding flow in the cooler paths of the receiver. The coolant has a negative temperature coefficient of viscosity which is high enough such that only an insignificant flow through the receiver is experienced at the minimum operating temperature of the receiver, and such that a maximum flow is experienced at the maximum operating temperature of the receiver. The valving is accomplished by changes in viscosity of the coolant in response to the coolant being heated and cooled. No remotely operated valves, comparators or the like are needed.

  5. IPHAS A-type Stars with Mid-IR Excesses in Spitzer Surveys

    E-Print Network [OSTI]

    Hales, Antonio S; Drew, Janet E; Unruh, Yvonne C; Greimel, Robert; Irwin, Michael J; Gonzalez-Solares, Eduardo

    2009-01-01T23:59:59.000Z

    We have identified 17 A-type stars in the Galactic Plane that have mid-IR excesses at 8 micron. From the observed colors in the (r'-H_alpha)-(r'-i') plane, we first identified 23050 early A-type main sequence (MS) star candidates in the Isaac Newton Photometric H-Alpha Survey (IPHAS) point source database that are located in Spitzer GLIMPSE Galactic Plane fields. Imposing the requirement that they be detected in all seven 2MASS and IRAC bands led to a sample of 2692 candidate A-type stars with fully sampled 0.6 to 8 micron SEDs. Optical classification spectra of 18 of the IPHAS candidate A-type MS stars showed that all but one could be well fitted using main sequence A-type templates, with the other being an A-type supergiant. Out of the 2692 A-type candidates 17 (0.6%) were found to have 8-micron excesses above the expected photospheric values. Taking into account non-A-Type contamination estimates, the 8-micron excess fraction is adjusted to ~0.7%. The distances to these sources range from 0.7-2.5 kpc. Only...

  6. Thermonuclear Supernovae: Probing Magnetic Fields by Late-Time IR Line Profiles

    E-Print Network [OSTI]

    Penney, R

    2014-01-01T23:59:59.000Z

    We study the imprint of magnetic fields B on late-time IR line profiles and light curves of Type Ia Supernovae. As a benchmark, we use the explosion of a Chandrasekhar mass M_{Ch White Dwarf (WD) and, specifically, a delayed detonation model. We assume WDs with initial magnetic surface fields between 1 and 1E9G. We discuss large-scale dipole and small-scale magnetic fields. We find that the [Fe II] line at 1.644 mu can be used to analyze the overall chemical and density structure of the exploding WD up to day 200 without considering B. Subsequently, positron transport and magnetic field effects become important. By day 500, the profile becomes sensitive to the morphology of B and directional dependent for dipole fields. Small or no directional dependence of the spectra is found for small-scale B. After about 200 days, persistent broad-line, flat-topped or stumpy profiles require high density burning which is the signature of a WD close to M_Ch. Narrow peaked profiles are a signature of chemical mixing or sub-...

  7. Radio frequency circuits for wireless receiver front-ends

    E-Print Network [OSTI]

    Xin, Chunyu

    2005-11-01T23:59:59.000Z

    . . . . . . . . 69 2. Implementation of the Down-Conversion Mixer . . . . 69 3. Layout Considerations and Simulation Results . . . . 74 4. Experimental Results of the Mixer Within the Receiver 77 IV BLUETOOTH/WI-FI DUAL-STANDARD RECEIVER RF FRONT...-END : : : : : : : : : : : : : : : : : : : : : : : : : : : : 80 A. Direct Conversion Bluetooth/Wi-Fi Dual-Standard Receiver 81 B. RF Front-End Design Considerations . . . . . . . . . . . . 83 C. Circuits Implementations . . . . . . . . . . . . . . . . . . . 86 1. LNA Implementation...

  8. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 3. Appendices. Part 2

    SciTech Connect (OSTI)

    Lee, S. K.

    1983-12-31T23:59:59.000Z

    The auxiliary heat transport systems of the Carrisa Plains Solar Power Plant (CPSPP) comprise facilities which are used to support plant operation and provide plant safety and maintenance. The facilities are the sodium purification system, argon cover gas system, sodium receiving and filling system, sodium-water reaction product receiving system, and safety and maintenance equipment. The functions of the facilities of the auxiliary system are described. Design requirements are established based on plant operating parameters. Descriptions are given on the system which will be adequate to perform the function and satisfy the requirements. Valve and equipment lists are included in the appendix.

  9. Radio-transparent multi-layer insulation for radiowave receivers

    SciTech Connect (OSTI)

    Choi, J. [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of)] [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of); Ishitsuka, H. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan)] [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Mima, S. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Oguri, S., E-mail: shugo@post.kek.jp [Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan); Takahashi, K. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan) [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Department of Physics, Tohoku University, Sendai, Miyagi 980-8578 (Japan); Tajima, O. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan) [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan)

    2013-11-15T23:59:59.000Z

    In the field of radiowave detection, enlarging the receiver aperture to enhance the amount of light detected is essential for greater scientific achievements. One challenge in using radio transmittable apertures is keeping the detectors cool. This is because transparency to thermal radiation above the radio frequency range increases the thermal load. In shielding from thermal radiation, a general strategy is to install thermal filters in the light path between aperture and detectors. However, there is difficulty in fabricating metal mesh filters of large diameters. It is also difficult to maintain large diameter absorptive-type filters in cold because of their limited thermal conductance. A technology that maintains cold conditions while allowing larger apertures has been long-awaited. We propose radio-transparent multi-layer insulation (RT-MLI) composed from a set of stacked insulating layers. The insulator is transparent to radio frequencies, but not transparent to infrared radiation. The basic idea for cooling is similar to conventional multi-layer insulation. It leads to a reduction in thermal radiation while maintaining a uniform surface temperature. The advantage of this technique over other filter types is that no thermal links are required. As insulator material, we used foamed polystyrene; its low index of refraction makes an anti-reflection coating unnecessary. We measured the basic performance of RT-MLI to confirm that thermal loads are lowered with more layers. We also confirmed that our RT-MLI has high transmittance to radiowaves, but blocks infrared radiation. For example, RT-MLI with 12 layers has a transmittance greater than 95% (lower than 1%) below 200 GHz (above 4 THz). We demonstrated its effects in a system with absorptive-type filters, where aperture diameters were 200 mm. Low temperatures were successfully maintained for the filters. We conclude that this technology significantly enhances the cooling of radiowave receivers, and is particularly suitable for large-aperture systems. This technology is expected to be applicable to various fields, including radio astronomy, geo-environmental assessment, and radar systems.

  10. ORISE: ORAU receives DOE Small Business Award for work under...

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

    ORAU receives DOE Small Business Award for work under ORISE contract Pictured above (L-R) are Heidi Timmerman, director of Procurement and Contracts Administration; Rebecca Crowe,...

  11. DOE's Jefferson Lab Receives Approval To Start Construction of...

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

    DOE's Jefferson Lab Receives Approval To Start Construction of 310 Million Upgrade NEWPORT NEWS, Va., Sept. 15, 2008 - The U.S. Department of Energy's Thomas Jefferson National...

  12. "BEST training, related to science, that I have ever received"

    E-Print Network [OSTI]

    Minnesota, University of

    "BEST training, related to science, that I have ever received" - Quote from a Dragonfly Workshop digital nature photography to state education standards A technology training certificate to submit

  13. Two Los Alamos National Laboratory organizations receive Performance...

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

    Laboratory organizations receive Performance Excellence recognition from Quality New Mexico Nuclear Material Control and Accountability Group and the Quality and Performance...

  14. Seventy-three New Mexico students receive Los Alamos Employees...

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

    Employees' Scholarship Fund (LAESF). Fasano is one of 73 students from seven Northern New Mexico counties receiving LAESF scholarships, which are funded through pledges from Los...

  15. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles

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

    application to demonstrate the full receiver system performance * Absorber architecture defined capable of (a) withstanding cycle pressures and (b) maintaining acceptable...

  16. A HIGH TEMPERATURE GAS RECEIVER UTILIZING SMALL PARTICLES

    E-Print Network [OSTI]

    Hunt, Arlon

    2012-01-01T23:59:59.000Z

    organized by the Solar Thermal Test Facilities UsersMexico, Organized by the Solar Thermal Test Facilities Usersdevelop a new type of solar thermal receiver that utilizes a

  17. Sandia Energy - JBEI Research Receives Strong Industry Interest...

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

    Research Receives Strong Industry Interest in DOE Technology Transfer Call Home Renewable Energy Energy Biofuels Facilities Partnership JBEI News News & Events Research &...

  18. Y-12 Steam Plant Project Received National Recognition for Project...

    National Nuclear Security Administration (NNSA)

    Steam Plant Project Received National Recognition for Project Management Excellence | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission...

  19. allograft recipients receiving: Topics by E-print Network

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

    HOW YOUR FINANCIAL NEED WAS DETERMINED The Financial Aid Notice Students receiving University funding will have a financial aid notice Budget Your basic cost of attendance...

  20. Support and maneuvering apparatus for solar energy receivers

    DOE Patents [OSTI]

    Murphy, Lawrence M. (Littleton, CO)

    1989-01-01T23:59:59.000Z

    A support and maneuvering apparatus is disclosed for a solar energy receiving device adpated for receiving and concentrating solar energy and having a central axis extending through the center thereof. The apparatus includes a frame for mounting the perimeter of said solar energy receiving device. A support member extends along the central axis of the receiving device and has a base end passing through the center of the receiving device and an outer distal end adapted for carrying a solar energy receiving and conversion mechanism. A variable tension mechanism interconnects the support member with the frame to provide stiffening for the support member and the frame and to assist in the alignment of the frame to optimize the optical efficiency of the solar energy receiving device. A rotatable base is provided, and connecting members extend from the base for pivotable attachment to the frame at spaced positions therealong. Finally, an elevation assembly is connected to the receiving device for selectively pivoting the receiving device about an axis defined between the attachment positions of the connecting members on the frame.

  1. absorption solar receiver: Topics by E-print Network

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

    which exhibit a broadband absorption enhancement over 2 An Air-Based Cavity-Receiver for Solar Trough Concentrators Roman Bader Renewable Energy Websites Summary: for a heat...

  2. Support and maneuvering apparatus for solar energy receivers

    DOE Patents [OSTI]

    Murphy, L.M.

    1988-07-28T23:59:59.000Z

    A support and maneuvering apparatus is disclosed for a solar energy receiving device adapted for receiving and concentrating solar energy and having a central axis extending through the center thereof. The apparatus includes a frame for mounting the perimeter of said solar energy receiving device. A support member extends along the central axis of the receiving device and has a base end passing through the center of the receiving device and an outer distal end adapted for carrying a solar energy receiving and conversion mechanism. A variable tension mechanism interconnects the support member with the frame to provide stiffening for the support member and the frame and to assist in the alignment of the frame to optimize the optical efficiency of the solar energy receiving device. A rotatable base is provided, and connecting members extend from the base for pivotable attachment to the frame at spaced positions therealong. Finally, an elevation assembly is connected to the receiving device for selectively pivoting the receiving about an axis defined between the attachment positions of the connecting members on the frame. 4 figs.

  3. Drell receives National Medal of Science | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Drell receives National Medal of Science | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

  4. Optimization of Multiple Receivers Solar Power Tower systems

    E-Print Network [OSTI]

    Emilio Carrizosa

    2015-03-26T23:59:59.000Z

    Mar 26, 2015 ... Abstract: In this article a new procedure to optimize the design of a Multiple Receivers Solar Power Tower system is presented. The proposed...

  5. NNSA project receives DOE Secretary's Award for Project Management...

    National Nuclear Security Administration (NNSA)

    project receives DOE Secretary's Award for Project Management Improvement | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the...

  6. Curran receives SAE Foundation industry leadership award | ornl...

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

    at the Department of Energy's Oak Ridge National Laboratory, has received the Society for Automotive Engineers (SAE) Foundation's 2015 Stefan Pischinger Young Industry Leadership...

  7. Analysis and design of CMOS ultra wideband receivers

    E-Print Network [OSTI]

    Ranjan, Mahim

    2006-01-01T23:59:59.000Z

    C. Direct Conversion Receiver . . . . . . . . . . D.second-order distortion issues in direct conversion MB- OFDMapproximation. III.1 III.2 III.3 A typical direct conversion

  8. SoftCast: One Video to Serve All Wireless Receivers

    E-Print Network [OSTI]

    Katabi, Dina

    2009-02-07T23:59:59.000Z

    The main challenge in wireless video multicast is to scalably serve multiple receivers who have different channel characteristics. Current wireless transmission schemes, however, cannot support smooth degradation. Specifically, ...

  9. Waste receiving and processing facility module 1 auditable safetyanalysis

    SciTech Connect (OSTI)

    Bottenus, R.J.

    1997-02-01T23:59:59.000Z

    The Waste Receiving and Processing Facility Module 1 Auditable Safety Analysis analyzes postulated accidents and determines controls to prevent the accidents or mitigate the consequences.

  10. Advanced Low-Cost Receivers for Parabolic Troughs

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

    receivers. Some of these drawbacks include expensive and technologically intensive absorption coatings, a 1%-5% annual failure rate for tubes due to vacuum degradation, and...

  11. Department of Energy Receives 2013 Partners in Conservation Award...

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

    The Department of Energy (DOE), along with its partners the Bureau of Ocean Energy Management (BOEM) and the National Oceanic and Atmospheric Administration (NOAA), received the...

  12. An infrared study of galactic OH/IR stars. I. An optical/near-IR atlas of the Arecibo sample

    E-Print Network [OSTI]

    F. M. Jimnez-Esteban; L. Agudo-Mrida; D. Engels; P. Garca-Lario

    2005-09-27T23:59:59.000Z

    In this paper we present optical and near-infrared finding charts, accurate astrometry (~1") and single-epoch near-infrared photometry for 371 IRAS sources, 96% of those included in the so-called Arecibo sample of OH/IR stars (Eder et al. 1988; Lewis et al. 1990a; Chengalur et al. 1993). The main photometric properties of the stars in the sample are presented and discussed as well as the problems found during the process of identification of the optical/near-infrared counterparts. In addition, we also identify suitable reference stars in each field to be used for differential photometry purposes in the future. We find that 39% of the sources (144 in number) have no optical counterpart, 8 of them being invisible even at near infrared wavelengths. The relative distribution of sources with and without optical counterpart in the IRAS two-colour diagram and their characteristic near infrared colours are interpreted as the consequence of the increasing thickness of their circumstellar shells. Among the objects not detected at near infrared wavelengths four non-variable sources are proposed to be heavily obscured post-AGB stars which have just very recently left the AGB. Eight additional objects with unusually bright and/or blue near-infrared colours are identified as candidate post-AGB stars and/or proto-planetary nebulae.

  13. Nutritional requirements of sesame

    E-Print Network [OSTI]

    Eller, Joe C

    1958-01-01T23:59:59.000Z

    L)&RARYi ~st t~6~ 0F TEXACO NUTRITIONAL REQUIREMENTS OF SESAME A Thesis By JOE C. ELLER Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in. partial fulfillment of the requirements for the degree of M... AS TER 0 F SCIENC E January 1958 Major Subject: Agronomy NUTRITIONAL REQUIREMENTS OF SESAME A Thesis JOE C. ELLER Approved. as to style and content by. ' Chairman of Committee Head qg Department January 1958 ACKNOWLEDGEMENT The author wishes...

  14. RPAM & Energy Order Requirements

    Energy Savers [EERE]

    430.1C, Real Property Asset Management and DOE O 430.2B, Departmental Energy, Renewable Energy and Transportation Management Requirements, Overlap & Differences Office of...

  15. Required Annual Notices

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

    Required Annual Notices The Women's Health and Cancer Rights Act of 1998 (WHCRA) The medical programs sponsored by LANS will not restrict benefits if you or your dependent...

  16. Transuranic Waste Requirements

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

    1999-07-09T23:59:59.000Z

    The guide provides criteria for determining if a waste is to be managed in accordance with DOE M 435.1-1, Chapter III, Transuranic Waste Requirements.

  17. Recap Clustering: Introduction Clustering in IR K-means Evaluation How many clusters? Introduction to Information Retrieval

    E-Print Network [OSTI]

    Nejdl, Wolfgang

    Recap Clustering: Introduction Clustering in IR K-means Evaluation How many clusters? Introduction;Recap Clustering: Introduction Clustering in IR K-means Evaluation How many clusters? Overview 1 Recap 2 Clustering: Introduction 3 Clustering in IR 4 K-means 5 Evaluation 6 How many clusters? Sch¨utze: Flat

  18. COUNTRY INSTITUTION DATE WEB ADDRESS IRAN University of Art Isfahn 08.03.2007 http://www.aui.ac.ir

    E-Print Network [OSTI]

    Di Pillo, Gianni

    COUNTRY INSTITUTION DATE WEB ADDRESS IRAN University of Art Isfahn 08.03.2007 http://www.aui.ac.ir IRAN Isfahn University of Technology 08.03.2007 http://www.iut.ac.ir IRAN The University of Isfahn 15/03/2011 http://www.ui.ac.ir IRAN Shahid Bahonar University of Kermn 06.06.2005 http

  19. Pool boiler reflux solar receiver for Stirling dish-electric systems

    SciTech Connect (OSTI)

    Andraka, C.E.; Moreno, J.B.

    1989-01-01T23:59:59.000Z

    The feasibility of competitive, modular bulk electric power from the sun may be greatly enhanced by the use of a reflux heat pipe receiver to combine a heat engine such as Stirling with a paraboloidal dish concentrator. This combination represents a potential improvement over previous successful demonstrations of dish-electric technology in terms of enhanced performance, lower cost, longer life, and greater flexibility in engine design. There are, however, important issues and unknowns which must be addressed to determine engineering feasibility of these devices. In the pool boiler reflux receiver, concentrated solar radiation causes liquid metal (sodium or potassium) to boil. The vapor flows to the engine heater heads, where it condenses and releases the latent heat. The condensate is returned to the receiver absorber pool by gravity (refluxing). This is essentially an adaptation of heat pipe technology to the peculiar requirements of concentrated solar flux, and provides many advantages over conventional heated tube receiver technology. Boiling theory indicates that long-term stable boiling of liquid metal may be difficult to achieve. Laboratory scale experiments have been performed. Initial tests confirmed that boiling is unstable in a baseline boiler. Boiling stability was established after the addition of ''artificial cavities'' to the heated surface, and successful boiling of sodium was demonstrated for 100 hours. Other stabilizing influences may have been present, and will be discussed. The flux and geometry closely simulated a real receiver. The results of these tests are presented, along with the design of a full scale receiver for on-sun testing and considerations for long term operation. 15 refs., 10 figs.

  20. Qualification test for the flexible receiver. Revision 2

    SciTech Connect (OSTI)

    Tedeschi, D.J.

    1994-12-12T23:59:59.000Z

    This document provides the test plan and procedures to certify and design verify the 42{double_prime} and 4{double_prime}-6{double_prime} Flexible Receiver as a safety class 3 system. The Flexible Receiver will be used by projects W-151 and W-320 for removing equipment from tanks C-106 and AZ-101.

  1. A New Compact Multichannel Receiver for Underwater Wireless Communication Networks

    E-Print Network [OSTI]

    Abdi, Ali

    size of the proposed receiver makes it particularly useful for small unmanned underwater vehicles1 A New Compact Multichannel Receiver for Underwater Wireless Communication Networks Ali Abdi of the particle velocity, in addition to the pressure, multichannel reception can be accomplished in underwater

  2. Ultra-Low Power Time Synchronization Using Passive Radio Receivers

    E-Print Network [OSTI]

    Amir, Yair

    Ultra-Low Power Time Synchronization Using Passive Radio Receivers Yin Chen Qiang Wang Marcus Chang. In this pa- per, we present an inexpensive and ultra-low power ( of elapsed seconds. The universal time sig- nal receiver combines an off-the-shelf radio chip with an ultra-low

  3. Interference mitigation techniques for SAW-less CDMA receivers

    E-Print Network [OSTI]

    Khatri, Himanshu

    2009-01-01T23:59:59.000Z

    RF front-end IC for a direct-conversion wireless receiver,noise for low- power direct-conversion receiver, IEEE J.A 72-mW CMOS 802.11a direct conversion front-end with 3.5-dB

  4. Artificial Intersymbol Interference (ISI) to Exploit Receiver Imperfections for Secrecy

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Artificial Intersymbol Interference (ISI) to Exploit Receiver Imperfections for Secrecy Azadeh intentional intersymbol inter- ference (ISI). The legitimate receiver uses the key to cancel the ISI while the eavesdropper, since it does not have the key, cannot do such. It is shown that although ISI reduces

  5. Hybrid sodium heat pipe receivers for dish/Stirling systems

    SciTech Connect (OSTI)

    Laing, D.; Reusch, M. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Technische Thermodynamik

    1997-12-31T23:59:59.000Z

    The design of a hybrid solar/gas heat pipe receiver for the SBP 9 kW dish/Stirling system using a United Stirling AB V160 Stirling engine and the results of on-sun testing in alternative and parallel mode will be reported. The receiver is designed to transfer a thermal power of 35 kW. The heat pipe operates at around 800 C, working fluid is sodium. Operational options are solar-only, gas augmented and gas-only mode. Also the design of a second generation hybrid heat pipe receiver currently developed under a EU-funded project, based on the experience gained with the first hybrid receiver, will be reported. This receiver is designed for the improved SPB/L. and C.-10 kW dish/Stirling system with the reworked SOLO V161 Stirling engine.

  6. Non-invasive, MRI-compatible fibreoptic device for functional near-IR reflectometry of human brain

    SciTech Connect (OSTI)

    Sorvoja, H.S.S.; Myllylae, T S; Myllylae, Risto A [University of Oulu, Optoelectronics and Measurements Techniques Laboratory (Finland); Kirillin, M Yu; Sergeeva, Ekaterina A [Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation); Elseoud, A A; Nikkinen, J; Tervonen, O; Kiviniemi, V [MRI Research Unit, Department of Diagnostic Radiology, Oulu University Hospital, Oulu (Finland)

    2011-01-24T23:59:59.000Z

    A non-invasive device for measuring blood oxygen variations in human brain is designed, implemented, and tested for MRI compatibility. The device is based on principles of near-IR reflectometry; power LEDs serve as sources of probing radiation delivered to patient skin surface through optical fibres. Numerical Monte Carlo simulations of probing radiation propagation in a multilayer brain model are performed to evaluate signal levels at different source - detector separations at three operation wavelengths and an additional wavelength of 915 nm. It is shown that the device can be applied for brain activity studies using power LEDs operating at 830 and 915 nm, while employment of wavelength of 660 nm requires an increased probing power. Employment of the wavelength of 592 nm in the current configuration is unreasonable. (application of lasers and laser-optical methods in life sciences)

  7. Structural analysis of a reflux pool-boiler solar receiver

    SciTech Connect (OSTI)

    Hoffman, E.L.; Stone, C.M.

    1991-06-01T23:59:59.000Z

    Coupled thermal-structural finite element calculations of a reflux pool-boiler solar receiver were performed to characterize the operating stresses and to address issues affecting the service life of the receiver. Analyses performed using shell elements provided information for receiver material selection and design optimization. Calculations based on linear elastic fracture mechanics principles were performed using continuum elements to assess the vulnerability of a seam-weld to fatigue crack growth. All calculations were performed using ABAQUS, a general purpose finite element code, and elements specifically formulated for coupled thermal-structural analysis. Two materials were evaluated: 316L SS and Haynes 230 alloys. The receiver response was simulated for a combination of structural and thermal loads that represent the startup and operating conditions of the receiver. For both materials, maximum stresses in the receiver developed shortly after startup due to uneven temperature distribution across the receiver surface. The largest effective stress was near yield in the 316L SS receiver and below 39 percent of yield in the Haynes 230 receiver. The calculations demonstrated that stress reductions of over 25 percent could be obtained by reducing the aft dome thickness to one closer to the absorber. The fatigue calculations demonstrated that the stress distribution near the seam-weld notch depends primarily on the structural load created by internal pressurization of the receiver rather than the thermal, indicating that the thermal loads can be neglected when assessing the stress intensity near the seam-weld notch. The stress intensity factor, computed using the J-integral method and crack opening-displacement field equations, was significantly below the fatigue threshold for most steels. The calculations indicated that the weld notch was always loaded in compression, a condition which is not conducive to fatigue crack growth. 15 refs., 30 figs., 3 tabs.

  8. General Responsibilities and Requirements

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

    1999-07-09T23:59:59.000Z

    The material presented in this guide provides suggestions and acceptable ways of implementing DOE M 435.1-1 and should not be viewed as additional or mandatory requirements. The objective of the guide is to ensure that responsible individuals understand what is necessary and acceptable for implementing the requirements of DOE M 435.1-1.

  9. [sup 27]Al NMR, GT-IR and ethanol-[sup 18]O TPD characterization of fluorided alumina

    SciTech Connect (OSTI)

    DeCanio, E.C. (Texaco R D Dept., Beacon, NY (United States) Wesleyan Univ., Middletown, CT (United States)); Bruno, J.W. (Wesleyan Univ., Middletown, CT (United States)); Nero, V.P.; Edwards, J.C. (Texaco R D Dept., Beacon, NY (United States))

    1993-03-01T23:59:59.000Z

    New environmental legislation in the United States requiring reformulation of gasoline and diesel fuels is making its necessary to develop better, alternative acid catalysts for alkylation and isomerization reactions, and for hydrotreating catalysts for sulfur and nitrogen removal from refinery streams. A series of F/Al[sub 2]O[sub 3] samples (wt % F = 0 to 20) has been studied using a combination of solid-state [sup 27]Al NMR, FT-IR, and ethanol-[sup 18]O TPD techniques. Solid-state [sup 27]Al NMR is particularly sensitive to amorphous phases or small crystallites present on the catalyst surface, many of which cannot be detected by XRD. [sup 27]Al NMR shows the presence of three types of AlF[sub 3](H[sub 2]O)[sub n] species (with n varying between 0 and 3) on fluorided alumina. FT-IR studies of ethanol adsorption show that fluoride blocks the sites required for dissociative chemisorption of ethanol. A similar analysis of adsorbed pyridine shows an increase in the number of Broensted acid sites with the addition of up to 10 wt % fluoride. However, increasing the fluoride loading to 20 wt % decreases the number of Broensted acid sites. The TPD of ethanol-[sup 18]O from F/Al[sub 2]O[sub 3] samples shows that at low levels fluoride serves to block Lewis acid sites, but at higher levels its predominant role is to increase the Broensted acidity of the alumina surface. The pyridine adsorption and TPD experiments show that fluoride strengthens the remaining Lewis acid sites. 14 figs., 3 tabs.

  10. A universal low-noise analog receiver baseband in 65-nm CMOS

    E-Print Network [OSTI]

    Tekin, Ahmet; Elwan, Hassan; Pedrotti, Kenneth

    2010-01-01T23:59:59.000Z

    P. , et al. (2005). A direct- conversion receiver for DVB-analog design for direct conversion receiver. In Proceedingsof the wide-band direct conversion receiver including the

  11. Improved Correction of IR Loss in Diffuse Shortwave Measurements: An ARM Value-Added Product

    SciTech Connect (OSTI)

    Younkin, K; Long, CN

    2003-11-01T23:59:59.000Z

    Simple single black detector pyranometers, such as the Eppley Precision Spectral Pyranometer (PSP) used by the Atmospheric Radiation Measurement (ARM) Program, are known to lose energy via infrared (IR) emission to the sky. This is especially a problem when making clear-sky diffuse shortwave (SW) measurements, which are inherently of low magnitude and suffer the greatest IR loss. Dutton et al. (2001) proposed a technique using information from collocated pyrgeometers to help compensate for this IR loss. The technique uses an empirically derived relationship between the pyrgeometer detector data (and alternatively the detector data plus the difference between the pyrgeometer case and dome temperatures) and the nighttime pyranometer IR loss data. This relationship is then used to apply a correction to the diffuse SW data during daylight hours. We developed an ARM value-added product (VAP) called the SW DIFF CORR 1DUTT VAP to apply the Dutton et al. correction technique to ARM PSP diffuse SW measurements.

  12. FT-IR spectroscopy technology, market evolution and future strategies of Bruker Optics Inc.

    E-Print Network [OSTI]

    Higdon, Thomas (Thomas Charles)

    2010-01-01T23:59:59.000Z

    This thesis explores the technology and market evolution of FT-IR spectroscopy over its nearly forty year history to aid in determining future product design and marketing strategies for an industry-leading firm, Bruker ...

  13. Hydrogen Bond Rearrangements in Water Probed with Temperature-Dependent 2D IR

    E-Print Network [OSTI]

    Nicodemus, Rebecca A.

    We use temperature-dependent two-dimensional infrared spectroscopy (2D IR) of dilute HOD in H2O to investigate hydrogen bond rearrangements in water. The OD stretching frequency is sensitive to its environment, and loss ...

  14. Highly Active and Stable MgAl2O4 Supported Rh and Ir Catalysts...

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

    and stability for methane steam reforming in the presence of simulated biomass-derived syngas. It was found that highly dispersed 2 nm Rh and 1 nm Ir clusters were formed on the...

  15. Perpendicular exchange bias effect in sputter-deposited CoFe/IrMn bilayers

    SciTech Connect (OSTI)

    Chen, J. Y., E-mail: chenjy02@gmail.com; Thiyagarajah, Naganivetha; Xu, H. J.; Coey, J. M. D. [School of Physics and CRANN, Trinity College, Dublin 2 (Ireland)

    2014-04-14T23:59:59.000Z

    CoFe/IrMn bilayers with perpendicular magnetization for various IrMn layer thicknesses exhibit unusual two-step hysteresis loops with both positive and negative loop shifts. Observed at room temperature in the as-grown state, they provide direct evidence of large antiferromagnetic domain formation at the IrMn interface. The exchange bias field reaches 100?mT with an IrMn layer thickness of 4?nm after field annealing at 200?C300?C in 800?mT, which is at least three times as large as the coercivity, and may be useful for reference layers of spin-valves or magnetic tunnel junctions with perpendicular magnetic anisotropy.

  16. Comparison of fixed asymmetrical and symmetrical reflectors for evacuated tube solar receivers

    SciTech Connect (OSTI)

    Mills, D.R.; Monger, A. (Univ. of Sydney (Australia)); Morrison, G.L. (Univ. of New South Wales, Sydney (Australia))

    1994-07-01T23:59:59.000Z

    A computer simulation of the relative performance of certain truncated symmetrical and asymmetrical fixed reflector designs for solar energy collection was performed. The comparison was on the basis of annual energy delivered to a circular cylindrical evacuated tube receiver per unit of mirror area, but seasonal load information was also included to determine possible seasonal load matching advantages of one type of collector over another when storage is employed. Circumsolar radiation models based on recent correlations in the literature was included. Major conclusions were that: (1) Annual solar fractions of between 80% and 95% seem to be feasible with a load matching collector used with moderate energy storage, with 80-90% being a likely optimum; (2) CPC reflectors always gave the best annual output performance per unit of mirror area, and the lowest receiver area for situations of constant annual load, regardless of whether the storage is included in the system; (3) Asymmetrical concentrator are more cost-effective for strongly seasonally asymmetrical load patterns; (4) Fixed parabolic systems required much more receiver area than the symmetrical CPC and asymmetrical system investigated; (5) Concentration levels utilizable in fixed systems are higher than previously supposed, with 3.5:1 in an asymmetrical reflector being optimal or nearly optimal for the domestic load pattern used in the study; (6) Using a load matched reflector, the amount of storage required to achieve solar fractions of total thermal energy (space heating, water heating, clothes drying) above 90% in a residence appears to be much lower than previously thought.

  17. Trends in dish-Stirling solar receiver designs

    SciTech Connect (OSTI)

    Diver, R.B.; Andraka, C.E.; Moreno, J.B.; Adkins, D.R.; Moss, T.A.

    1990-01-01T23:59:59.000Z

    The dish-Stirling solar energy system, because of its high efficiency, is a leading candidate for producing low-cost electric power from the sun. Dish-Stirling receiver design involves dealing with non-uniform and highly concentrated solar flux at high temperatures (700--800{degree}C) and, therefore, presents a variety of technical challenges. The technology is in the process of evolving from directly illuminated heater-head tube receivers'' to receivers that use refluxing (i.e., gravity assisted) liquid metals as an intermediate heat transfer fluid. Modern dish-Stirling development was initiated in the late 1970s by the Jet Propulsion Laboratory for the Department of Energy. The JPL technology development with United Stirling, Inc. involved the USAB 4.95 Stirling engine and directly illuminated heater-head tube receivers. This work eventually led to the successful demonstrations and world record efficiencies by Advanco Corp., and to the attempted commercialization of the technology by McDonnell Douglas Corp. The severe nature of concentrated solar flux and the potential advantages of heat-pipe technology have caused an evolution toward reflux'' receivers. These receivers are just beginning to be tested in the laboratory and integrated with dish-Stirling systems. In this paper, the history and current status of dish-Stirling receiver development are presented and discussed. The technical challenges to be addressed by the dish-Stirling community and the future plans at Sandia are outlined. 52 refs., 9 figs.

  18. Estimated IR and phosphorescence emission fluxes for specific Polycyclic Aromatic Hydrocarbons in the Red Rectangle

    E-Print Network [OSTI]

    G. Mulas; G. Malloci; C. Joblin; D. Toublanc

    2005-09-20T23:59:59.000Z

    Following the tentative identification of the blue luminescence in the Red Rectangle by Vijh et al. (2005), we compute absolute fluxes for the vibrational IR emission and phosphorescence bands of three small polycyclic aromatic hydrocarbons. The calculated IR spectra are compared with available ISO observations. A subset of the emission bands are predicted to be observable using presently available facilities, and can be used for an immediate, independent, discriminating test on their alleged presence in this well-known astronomical object.

  19. DRIVER ACCELERATOR DESIGN FOR THE 10 KW UPGRADE OF THE JEFFERSON LAB IR FEL

    E-Print Network [OSTI]

    DRIVER ACCELERATOR DESIGN FOR THE 10 KW UPGRADE OF THE JEFFERSON LAB IR FEL D. Douglas, S. V, Newport News, VA23606, USA Abstract An upgrade of the Jefferson Lab IR FEL [1] is now un- der construction. It will provide 10 kW output light power in a wavelength range of 210 m. The FEL will be driven by a modest

  20. Promulgating Nuclear Safety Requirements

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

    1996-05-15T23:59:59.000Z

    Applies to all Nuclear Safety Requirements Adopted by the Department to Govern the Conduct of its Nuclear Activities. Cancels DOE P 410.1. Canceled by DOE N 251.85.

  1. BES Science Network Requirements

    E-Print Network [OSTI]

    Dart, Eli

    2011-01-01T23:59:59.000Z

    the Directors of the Office of Science, Office of AdvancedOffice of Basic Energy Sciences. This is LBNL report LBNL-BES Science Network Requirements Report of the Basic Energy

  2. Timeline for Net Requirements

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

    x By July 31 of each Forecast Year, BPA publishes all Load Following customers' Net Requirements data for the two years of the upcoming Rate Period. 17.6.1 7312010 Yes...

  3. Conditions Required by Law

    E-Print Network [OSTI]

    Khan, Javed I.

    No No Sto H 2 NoIs it required by law "Violence on children"?164.512 (c) (1) H CE may disclose to government to LEO HCE may not disclose to LEO H No Yes No Required by law: "reporting certain type of injuries"? H disclose to LEO H 164.512 (f) (1) (ii) (C)(2) It provides that the request is specific and limited in scope

  4. Requirements | Department of Energy

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

    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 Delicious Rank EERE: Alternative JC3 RSS September 9,Award RecipientsActMission to ChinaRequirements Requirements

  5. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume I. Executive summary

    SciTech Connect (OSTI)

    Not Available

    1983-12-31T23:59:59.000Z

    The design of the 30 MWe central receiver solar power plant to be located at Carrisa Plains, San Luis Obispo County, California, is summarized. The plant uses a vertical flat-panel (billboard) solar receiver located at the top of a tower to collect solar energy redirected by approximately 1900 heliostats located to the north of the tower. The solar energy is used to heat liquid sodium pumped from ground level from 610 to 1050/sup 0/F. The power conversion system is a non-reheat system, cost-effective at this size level, and designed for high-efficiency performance in an application requiring daily startup. Successful completion of this project will lead to power generation starting in 1986. This report also discusses plant performance, operations and maintenance, development, and facility cost estimate and economic analysis.

  6. Applications Received by DOE/FE to Export Domestically Produced...

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

    Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of March 5, 2014) All Changes Since February 11, 2014 Update Are In Red 1 Company...

  7. Long Term Applications Received by DOE/FE to Export

    Energy Savers [EERE]

    Long Term Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of March 3, 2015) All Changes Since February 25, 2015 Update Are In Red 1...

  8. Long Term*** Applications Received by DOE/FE to Export

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

    Long Term*** Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of June 11, 2014) All Changes Since April 18, 2014 Update Are In Red 1...

  9. Advanced Low-Cost Receivers for Parabolic Troughs (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Norwich Technologies is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  10. High-Temperature Falling-Particle Receiver (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Sandia National Laboratories is one of the 2012 SunShot CSP R&D awardee for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  11. Argonne and Dept. of Energy receive EPA's Federal Green Challenge...

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

    Argonne and Dept. of Energy receive EPA's Federal Green Challenge Award May 15, 2014 Tweet EmailPrint Argonne National Laboratory and the U.S. Department of Energy (DOE) have been...

  12. Energy-Department Supported Scientist Receives Nobel Prize for...

    Office of Environmental Management (EM)

    to receive the Nobel Prize in Physics for their invention of the blue light emitting diode, a game-changer in the history of LED lights. | Photo courtesy of Soraa. Shuji...

  13. Argonne receives 2014 DOE Sustainability Award | Argonne National...

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

    receives 2014 DOE Sustainability Award By Diana Anderson * January 5, 2015 Tweet EmailPrint Argonne National Laboratory has been recognized with the 2014 U.S. Department of Energy...

  14. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles...

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

    high-efficiency solar receiver that is compatible with s-CO2 cycles and modern thermal storage subsystems. Supercritical CO2 Brayton-cycle engines have the potential to...

  15. High performance CMOS integrated circuits for optical receivers

    E-Print Network [OSTI]

    SamadiBoroujeni, MohammadReza

    2009-05-15T23:59:59.000Z

    Prasad Enjeti Head of Department, Costas Georghiades December 2006 Major Subject: Electrical Engineering iii ABSTRACT High Performance CMOS Integrated Circuits for Optical Receivers. (December 2006) MohammadReza SamadiBoroujeni, B...

  16. apprentice receives award: Topics by E-print Network

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

    19th of March. The L'Oral- UNESCO For Women in Science Awards, established by the world Takada, Shoji 11 Prof. T. Harinarayana, Director, GERMI received the "Energy and...

  17. Receiving Water Uses, Impairments, and Sources of Stormwater Pollutants

    E-Print Network [OSTI]

    Pitt, Robert E.

    CHAPTER 2 Receiving Water Uses, Impairments, and Sources of Stormwater Pollutants "Bathing) .........................................................................26 Recreation (Non-Water Contact) Uses...................................................................................26 Biological Uses (Warm-Water Fishery, Aquatic Life Use, Biological Integrity, etc.)..........27

  18. High-Flux Microchannel Solar Receiver (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Oregon State University is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  19. RF CMOS UWB transmitter and receiver front-end design

    E-Print Network [OSTI]

    Miao, Meng

    2009-05-15T23:59:59.000Z

    The low-cost low-power complementary metal-oxide semiconductor (CMOS) ultra wideband (UWB) transmitter and receiver front-ends based on impulse technology were developed. The CMOS UWB pulse generator with frequency-band tuning capability...

  20. Long Term Applications Received by DOE/FE to Export

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

    Term Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of April 14, 2015) All Changes Since March 26, 2015 Update Are In Red Company...

  1. Advanced Low-Cost Receivers for Parabolic Troughs

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

    Trough Receiver (NRELTP-550-45633): NREL, 2009. 2. Kutscher C, et al. Line-Focus Solar Power Plant Cost Reduction Plan: NREL Milestone Report, 2010. 3. Mahoney R. Trough...

  2. Particle Receiver Integrated with Fluidized Bed (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    National Renewable Energy Laboratory is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  3. DESIGN OF A MICROCHANNEL BASED SOLAR RECEIVER/REACTOR FOR

    E-Print Network [OSTI]

    Apte, Sourabh V.

    for production of hydrogen. A cou- pled shape-constrained optimization and Monte-Carlo radiative heat transfer model is developed to design a receiver shape that can yield a desired heat flux distribution

  4. Multi-band OFDM UWB receiver with narrowband interference suppression

    E-Print Network [OSTI]

    Kelleci, Burak

    2009-05-15T23:59:59.000Z

    A multi band orthogonal frequency division multiplexing (MB-OFDM) compatible ultra wideband (UWB) receiver with narrowband interference (NBI) suppression capability is presented. The average transmit power of UWB system ...

  5. A HIGH TEMPERATURE GAS RECEIVER UTILIZING SMALL PARTICLES

    E-Print Network [OSTI]

    Hunt, Arlon

    2012-01-01T23:59:59.000Z

    of Energy under Arlon Hunt, "A New Solar Thermal Receiversolar thermal receiver that utilizes a dispersion of very small particles suse2ded in a gas to absorb the radiant energy

  6. Administering truncated receive functions in a parallel messaging interface

    DOE Patents [OSTI]

    Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

    2014-12-09T23:59:59.000Z

    Administering truncated receive functions in a parallel messaging interface (`PMI`) of a parallel computer comprising a plurality of compute nodes coupled for data communications through the PMI and through a data communications network, including: sending, through the PMI on a source compute node, a quantity of data from the source compute node to a destination compute node; specifying, by an application on the destination compute node, a portion of the quantity of data to be received by the application on the destination compute node and a portion of the quantity of data to be discarded; receiving, by the PMI on the destination compute node, all of the quantity of data; providing, by the PMI on the destination compute node to the application on the destination compute node, only the portion of the quantity of data to be received by the application; and discarding, by the PMI on the destination compute node, the portion of the quantity of data to be discarded.

  7. Hybrid solar central receiver for combined cycle power plant

    DOE Patents [OSTI]

    Bharathan, Desikan (Lakewood, CO); Bohn, Mark S. (Golden, CO); Williams, Thomas A. (Arvada, CO)

    1995-01-01T23:59:59.000Z

    A hybrid combined cycle power plant including a solar central receiver for receiving solar radiation and converting it to thermal energy. The power plant includes a molten salt heat transfer medium for transferring the thermal energy to an air heater. The air heater uses the thermal energy to preheat the air from the compressor of the gas cycle. The exhaust gases from the gas cycle are directed to a steam turbine for additional energy production.

  8. Hybrid solar central receiver for combined cycle power plant

    DOE Patents [OSTI]

    Bharathan, D.; Bohn, M.S.; Williams, T.A.

    1995-05-23T23:59:59.000Z

    A hybrid combined cycle power plant is described including a solar central receiver for receiving solar radiation and converting it to thermal energy. The power plant includes a molten salt heat transfer medium for transferring the thermal energy to an air heater. The air heater uses the thermal energy to preheat the air from the compressor of the gas cycle. The exhaust gases from the gas cycle are directed to a steam turbine for additional energy production. 1 figure.

  9. Internship Opportunities & Requirements Urban and Public Affairs Program

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    Internship Opportunities & Requirements Urban and Public Affairs Program If you are interested in an internship placement, you must contact the UPA Office, dcheat2@uic.edu or (312) 413 ­ 2565 to receive an internship packet and arrange the mandatory internship meeting with the Program Director. To confirm receipt

  10. SHERPA Document SHERPA Document -Institutional Repositories: Staff and Skills Requirements

    E-Print Network [OSTI]

    Southampton, University of

    SHERPA Document SHERPA Document - Institutional Repositories: Staff and Skills Requirements Mary This document began in response to requests received by the core SHERPA team for examples of job descriptions and UKCORR members. This document will be revised annually (July/August) to reflect changing needs

  11. A first principle study for the adsorption and absorption of carbon atom and the CO dissociation on Ir(100) surface

    SciTech Connect (OSTI)

    Erikat, I. A., E-mail: ihsanas@yahoo.com [Department of Physics, Jerash University, Jerash-26150 (Jordan); Hamad, B. A. [Department of Physics, The University of Jordan, Amman-11942 (Jordan)] [Department of Physics, The University of Jordan, Amman-11942 (Jordan)

    2013-11-07T23:59:59.000Z

    We employ density functional theory to examine the adsorption and absorption of carbon atom as well as the dissociation of carbon monoxide on Ir(100) surface. We find that carbon atoms bind strongly with Ir(100) surface and prefer the high coordination hollow site for all coverages. In the case of 0.75?ML coverage of carbon, we obtain a bridging metal structure due to the balance between IrC and IrIr interactions. In the subsurface region, the carbon atom prefers the octahedral site of Ir(100) surface. We find large diffusion barrier for carbon atom into Ir(100) surface (2.70 eV) due to the strong bonding between carbon atom and Ir(100) surface, whereas we find a very small segregation barrier (0.22 eV) from subsurface to the surface. The minimum energy path and energy barrier for the dissociation of CO on Ir(100) surface are obtained by using climbing image nudge elastic band. The energy barrier of CO dissociation on Ir(100) surface is found to be 3.01 eV, which is appreciably larger than the association energy (1.61 eV) of this molecule.

  12. Financing alternatives and incentives for solar-thermal central-receiver systems

    SciTech Connect (OSTI)

    Bos, P.B.

    1982-07-01T23:59:59.000Z

    As a result of various recently enacted incentive and regulatory legislation combined with the new administration policy and budgetary guidelines, the commercialization of solar thermal central receiver systems will involve financing alternatives other than conventional utility financing. This study was conducted to identify these potential financing alternatives and the associated requirements and impacts on the Department of Energy program. Based upon this analysis, it is concluded that the current alternative financing window is extremely short (through 1985), and that an extension or at the least a gradual phasing out, of the solar tax credits is necessary for the successful transfer of the central receiver technology to the private sector. Furthermore, throughout this time period, continued government support of the R and D activities is necessary to provide the necessary confidence in this technology for the private (financial) sector to underwrite this technology transfer. Consequently, even though the central receiver technology shows high promise for replacing a significant fraction of the oil/gas-fired utility industry peaking and intermediate generation, the current readiness status of this technology still requires further direct and indirect government support for a successful technology transfer. The direct government research and development support will provide the basis for a technological readiness and confidence, whereas the indirect tax incentive support serves to underwrite the extraordinary risks associated with the technology transfer. These support requirements need only be limited to and decreasing during this technology transfer phase, since as the systems approach successful full-scale commercialization, the extraordinary risks will be gradually eliminated. At the time of commercialization the system's value should be on a par with the installed system's cost.

  13. Syntheses, crystal structures, and properties of EuRhIn, EuIr{sub 2}, and EuIrSn{sub 2}

    SciTech Connect (OSTI)

    Poettgen, R.; Hoffmann, R.D.; Moeller, M.H.; Kotzyba, G.; Kuennen, B.; Rosenhahn, C.; Mosel, B.D. [Univ. Muenster (Germany)] [Univ. Muenster (Germany)

    1999-06-01T23:59:59.000Z

    The title compounds were prepared from the elements by reactions in sealed tantalum tubes in a high-frequency furnace. Their structures were refined from single crystal X-ray diffractometer data: Pnma, a = 744.4(1) pm, b = 434.15(9) pm, c = 845.5(1) pm, wR2 = 0.0433, 658 F{sup 2} values, 20 variables for EuRhIn, Rd3m, a = 756.5(1) pm, wR2 = 0.0349, 94 F{sup 2} values, 5 variables for EuIr{sub 2}, and Cmcm, a = 434.78(3) pm, b = 1124.0(1) pm, c = 751.20(5) pm, wR2 = 0.0561, 565 F{sup 2} values, 16 variables for EuIrSn{sub 2}. EuRhIn crystallizes with a TiNiSi type structure that consists of strongly puckered Rh{sub 3}In{sub 3} hexagons. The europium atoms fill the channels within the three-dimensional [RhIn] polyanion. EuRhIn orders ferromagnetically at 22.0(5) K with a saturation magnetic moment of 6.7(1) {mu}{sub B}/Eu at 4 k and 5.5 T. The divalent character of the europium atoms in EuRhIn was determined from temperature dependent susceptibility (7.9 {mu}{sub B}/Eu in the high-temperature part) and {sup 151}Eu Moessbauer spectroscopic experiments. The latter show an isomer shift of {delta} = {minus}8.30(2) mm/s at 78 K. At 4.2 K full magnetic hyperfine field splitting subjected to significant quadrupole splitting of {Delta}E{sub Q} = 8 mm/s is observed. EuRhIn is a metallic conductor with a room temperature value of 58 {micro}{Omega}cm for the specific resistivity. The structure of the Laves phase EuIr{sub 2} is confirmed on the basis of single crystal X-ray data. The iridium atoms form a tetrahedral network with Ir-Ir distances of 268 pm. EuIrSn{sub 2} adopts a MgCuAl{sub 2} type structure that may be described as an iridium-filled variant of a distorted CaIn{sub 2}-like sublattice of composition EuSn{sub 2}. The tin atoms in the distorted and puckered hexagonal network have shorter (303 and 322 pm) and longer (343 pm) tin-tin contacts. 40 refs., 9 figs., 5 tabs.

  14. MID-IR LUMINOSITIES AND UV/OPTICAL STAR FORMATION RATES AT z < 1.4

    SciTech Connect (OSTI)

    Salim, Samir; Dickinson, Mark [National Optical Astronomy Observatory, 950 North Cherry Ave., Tucson, AZ 85719 (United States); Michael Rich, R. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Charlot, Stephane [Institut d'Astrophysique de Paris, CNRS, 98 bis boulevard Arago, F-75014 Paris (France); Lee, Janice C. [Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Schiminovich, David [Department of Astronomy, Columbia University, New York, NY 10027 (United States); Perez-Gonzalez, Pablo G. [Departamento de AstrofIsica, Facultad de CC. FIsicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Ashby, Matthew L. N.; Noeske, Kai [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Papovich, Casey; Weiner, Benjamin J. [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Faber, S. M. [University of California Observatories/Lick Observatory, University of California, Santa Cruz, CA 95064 (United States); Ivison, Rob J. [UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom); Frayer, David T. [Infrared Processing and Analysis Center, California Institute of Technology 100-22, Pasadena, CA 91125 (United States); Walton, Josiah M. [University of Arkansas, Fayetteville, AR 72701 (United States); Chary, Ranga-Ram [Spitzer Science Center, California Institute of Technology 220-6, Pasadena, CA 91125 (United States); Bundy, Kevin [Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4 (Canada); Koekemoer, Anton M. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)], E-mail: samir@noao.edu

    2009-07-20T23:59:59.000Z

    Ultraviolet (UV) nonionizing continuum and mid-infrared (IR) emission constitute the basis of two widely used star formation (SF) indicators at intermediate and high redshifts. We study 2430 galaxies with z < 1.4 in the Extended Groth Strip with deep MIPS 24 {mu}m observations from FIDEL, spectroscopy from DEEP2, and UV, optical, and near-IR photometry from the AEGIS. The data are coupled with dust-reddened stellar population models and Bayesian spectral energy distribution (SED) fitting to estimate dust-corrected star formation rates (SFRs). In order to probe the dust heating from stellar populations of various ages, the derived SFRs were averaged over various timescales-from 100 Myr for 'current' SFR (corresponding to young stars) to 1-3 Gyr for long-timescale SFRs (corresponding to the light-weighted age of the dominant stellar populations). These SED-based UV/optical SFRs are compared to total IR luminosities extrapolated from 24 {mu}m observations, corresponding to 10-18 {mu}m rest frame. The total IR luminosities are in the range of normal star-forming galaxies and luminous IR galaxies (10{sup 10}-10{sup 12} L{sub sun}). We show that the IR luminosity can be estimated from the UV and optical photometry to within a factor of 2, implying that most z < 1.4 galaxies are not optically thick. We find that for the blue, actively star-forming galaxies the correlation between the IR luminosity and the UV/optical SFR shows a decrease in scatter when going from shorter to longer SFR-averaging timescales. We interpret this as the greater role of intermediate age stellar populations in heating the dust than what is typically assumed. Equivalently, we observe that the IR luminosity is better correlated with dust-corrected optical luminosity than with dust-corrected UV light. We find that this holds over the entire redshift range. Many so-called green valley galaxies are simply dust-obscured actively star-forming galaxies. However, there exist 24 {mu}m detected galaxies, some with L{sub IR}>10{sup 11} L{sub sun}, yet with little current SF. For them a reasonable amount of dust absorption of stellar light (but presumably higher than in nearby early-type galaxies) is sufficient to produce the observed levels of IR, which includes a large contribution from intermediate and old stellar populations. In our sample, which contains very few ultraluminous IR galaxies, optical and X-ray active galactic nuclei do not contribute on average more than {approx}50% to the mid-IR luminosity, and we see no evidence for a large population of 'IR excess' galaxies.

  15. Requirements Definition Stage

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

    1997-05-21T23:59:59.000Z

    This chapter addresses development of a Software Configuration Management Plan to track and control work products, analysis of the system owner/users' business processes and needs, translation of those processes and needs into formal requirements, and planning the testing activities to validate the performance of the software product.

  16. Requirements for Xenon International

    SciTech Connect (OSTI)

    Hayes, James C.; Ely, James H.

    2013-09-26T23:59:59.000Z

    This document defines the requirements for the new Xenon International radioxenon system. The output of this project will be a Pacific Northwest National Laboratory (PNNL) developed prototype and a manufacturer-developed production prototype. The two prototypes are intended to be as close to matching as possible; this will be facilitated by overlapping development cycles and open communication between PNNL and the manufacturer.

  17. Your TA's Name The papers for Physics 108 are a requirement to receive an A in the class. The TA's

    E-Print Network [OSTI]

    Hart, Gus

    of electrical circuit Magnets and magnetic fields Design of refrigerator magnets (this is actually quite interesting) Magnetic fields in the earth or the sun Electric and magnetic forces Computer or TV Cathode

  18. Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems

    E-Print Network [OSTI]

    Sridharan, Gokul

    2010-01-01T23:59:59.000Z

    This paper addresses the issue of phase noise in OFDM systems. Phase noise (PHN) is a transceiver impairment resulting from the non-idealities of the local oscillator. We present a case for designing a turbo receiver for systems corrupted by phase noise by taking a closer look at the effects of the common phase error (CPE). Using an approximate probabilistic framework called variational inference (VI), we develop a soft-in soft-out (SISO) algorithm that generates posterior bit-level soft estimates while taking into account the effect of phase noise. The algorithm also provides an estimate of the phase noise sequence. Using this SISO algorithm, a turbo receiver is designed by passing soft information between the SISO detector and an outer forward error correcting (FEC) decoder that uses a soft decoding algorithm. It is shown that the turbo receiver achieves close to optimal performance.

  19. The influence of the spectral emissivity of flat-plate calibrators on the calibration of IR thermometers

    SciTech Connect (OSTI)

    Crdenas-Garca, D.; Mndez-Lango, E. [Centro Nacional de Metrologa, CENAM Km 4.5 Carretera a los Cus, El Marqus, Quertaro, 76246 (Mexico)] [Centro Nacional de Metrologa, CENAM Km 4.5 Carretera a los Cus, El Marqus, Quertaro, 76246 (Mexico)

    2013-09-11T23:59:59.000Z

    Flat Calibrators (FC) are an option for calibration of infrared thermometers (IT) with a fixed large target. FCs are neither blackbodies, nor gray-bodies; their spectral emissivity is lower than one and depends on wavelength. Nevertheless they are used as gray-bodies with a nominal emissivity value. FCs can be calibrated radiometrically using as reference a calibrated IR thermometer (RT). If an FC will be used to calibrate ITs that work in the same spectral range as the RT then its calibration is straightforward: the actual FC spectral emissivity is not required. This result is valid for any given fixed emissivity assessed to the FC. On the other hand, when the RT working spectral range does not match with that of the ITs to be calibrated with the FC then it is required to know the FC spectral emissivity as part of the calibration process. For this purpose, at CENAM, we developed an experimental setup to measure spectral emissivity in the infrared spectral range, based on a Fourier transform infrared spectrometer. Not all laboratories have emissivity measurement capability in the appropriate wavelength and temperature ranges to obtain the spectral emissivity. Thus, we present an estimation of the error introduced when the spectral range of the RT used to calibrate an FC and the spectral ranges of the ITs to be calibrated with the FC do not match. Some examples are developed for the cases when RT and IT spectral ranges are [8,13] ?m and [8,14] ?m respectively.

  20. Heat Pipe Solar Receiver Development Activities at Sandia National Laboratories

    SciTech Connect (OSTI)

    Adkins, D.R.; Andraka, C.E.; Moreno, J.B.; Moss, T.A.; Rawlinson, K.S.; Showalter, S.K.

    1999-01-08T23:59:59.000Z

    Over the past decade, Sandia National Laboratories has been involved in the development of receivers to transfer energy from the focus of a parabolic dish concentrator to the heater tubes of a Stirling engine. Through the isothermal evaporation and condensation of sodium. a heat-pipe receiver can efficiently transfer energy to an engine's working fluid and compensate for irregularities in the flux distribution that is delivered by the concentrator. The operation of the heat pipe is completely passive because the liquid sodium is distributed over the solar-heated surface by capillary pumping provided by a wick structure. Tests have shown that using a heat pipe can boost the system performance by twenty percent when compared to directly illuminating the engine heater tubes. Designing heat pipe solar receivers has presented several challenges. The relatively large area ({approximately}0.2 m{sup 2}) of the receiver surface makes it difficult to design a wick that can continuously provide liquid sodium to all regions of the heated surface. Selecting a wick structure with smaller pores will improve capillary pumping capabilities of the wick, but the small pores will restrict the flow of liquid and generate high pressure drops. Selecting a wick that is comprised of very tine filaments can increase the permeability of the wick and thereby reduce flow losses, however, the fine wick structure is more susceptible to corrosion and mechanical damage. This paper provides a comprehensive review of the issues encountered in the design of heat pipe solar receivers and solutions to problems that have arisen. Topics include: flow characterization in the receiver, the design of wick systems. the minimization of corrosion and dissolution of metals in sodium systems. and the prevention of mechanical failure in high porosity wick structures.

  1. Co layer thickness dependence of exchange biasing for IrMnCo and FeMnCo

    E-Print Network [OSTI]

    Reilly, Anne

    Co layer thickness dependence of exchange biasing for IrMnCo and FeMnCo K. A. Seua) and H. Huang) in IrMn/Co and FeMn/Co bilayers using the magneto-optical Kerr effect. Samples are sputtered wedges on silicon with Co thicknesses ranging from 1 to 17 nm. The IrMn/Co with exchange bias interface energy of 0

  2. Modulated IR radiometry for determining thermal properties and basic characteristics of titanium thin films

    SciTech Connect (OSTI)

    Apreutesei, Mihai [Centro de Fsica, Universidade do Minho, 4710-057 Braga, Portugal and MATEIS Laboratory-INSA de Lyon, Bt. B. Pascal, 7 Avenue Jean Capelle, 69621 Villeurbanne Cedex (France); Lopes, Claudia; Vaz, Filipe; Macedo, Francisco, E-mail: fmacedo@fisica.uminho.pt [Centro de Fsica, Universidade do Minho, 4710-057 Braga (Portugal); Borges, Joel [Centro de Fsica, Universidade do Minho, 4710-057 Braga, Portugal and SEG-CEMUC Mechanical Engineering Department, University of Coimbra, 3030-788 Coimbra (Portugal)

    2014-07-01T23:59:59.000Z

    Titanium thin films of different thicknesses were prepared by direct current magnetron sputtering to study modulated infrared (IR) radiometry as a tool for analyzing film thickness. Thickness was varied by regularly increasing the deposition time, keeping all the other deposition parameters constant. The influence of film thickness on morphological, structural, and electrical properties of the titanium coatings also was investigated. The experimental results revealed a systematic grain growth with increasing film thickness, along with enhanced film crystallinity, which led to increased electrical conductivity. Using the results obtained by modulated IR radiometry, the thickness of each thin film was calculated. These thickness values were then compared with the coating thickness measurements obtained by scanning electron microscopy. The values confirmed the reliability of modulated IR radiometry as an analysis tool for thin films and coatings, and for determining thicknesses in the micrometer range, in particular.

  3. Testing of Stirling engine solar reflux heat-pipe receivers

    SciTech Connect (OSTI)

    Rawlinson, S.; Cordeiro, P.; Dudley, V.; Moss, T.

    1993-07-01T23:59:59.000Z

    Alkali metal heat-pipe receivers have been identified as a desirable interface to couple a Stirling-cycle engine with a parabolic dish solar concentrator. The reflux receiver provides power nearly isothermally to the engine heater heads while de-coupling the heater head design from the solar absorber surface design. The independent design of the receiver and engine heater head leads to high system efficiency. Heat pipe reflux receivers have been demonstrated at approximately 30 kW{sub t} power throughput by others. This size is suitable fm engine output powers up to 10 kW{sub e}. Several 25-kW{sub e}, Stirling-cycle engines exist, as well as designs for 75-kW{sub t} parabolic dish solar concentrators. The extension of heat pipe technology from 30 kW{sub t} to 75 kW{sub t} is not trivial. Heat pipe designs are pushed to their limits, and it is critical to understand the flux profiles expected from the dish, and the local performance of the wick structure. Sandia has developed instrumentation to monitor and control the operation of heat pipe reflux receivers to test their throughput limits, and analytical models to evaluate receiver designs. In the past 1.5 years, several heat pipe receivers have been tested on Sandia`s test bed concentrators (TBC`s) and 60-kW{sub t} solar furnace. A screen-wick heat pipe developed by Dynatherm was tested to 27.5 kW{sub t} throughput. A Cummins Power Generation (CPG)/Thermacore 30-kW{sub t} heat pipe was pushed to a throughput of 41 kW{sub t} to verify design models. A Sandia-design screen-wick and artery 75-kW{sub t} heat pipe and a CPG/Thermacore 75-kW{sub t} sintered-wick heat pipe were also limit tested on the TBC. This report reviews the design of these receivers, and compares test results with model predictions.

  4. Advanced Low-Cost Receivers for Parabolic Troughs

    Broader source: Energy.gov [DOE]

    This fact sheet describes an advanced, low-cost receiver project for parabolic troughs, awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. Norwich Technologies is designing a novel receiver that addresses these issues for parabolic trough concentrating solar power systems. This technology represents significant operational and cost advances in the most trusted and broadly implemented form of CSP and provides a viable pathway to achieving SunShots $0.06/kWh goal for utility-scale CSP systems.

  5. Factors Influencing the Prices Received for Texas Turkeys.

    E-Print Network [OSTI]

    Halpin, R. B.; Parnell, E. D.; Mountney, G. J.

    1954-01-01T23:59:59.000Z

    1952 300- 'j HENS 250 -Ae THANKSGIVING L 20 27 4 11 18 25 1 8 15 22 29 6 S E PT. OCT. N OV. DEC. i Figure 3. Average number of No. 1 live turkeys pu:. chased per transaction by sex by weeks, six plants, Texci 1951-52. I FALL MARKETING SEASON...Factors Influencing the Prices Received for Texas Turkeys TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS. DIRECTOR, COLLEGE STATION. TEXAS DIGEST A study was conducted during 1950-53 of the factors influencing the market quality a1 received...

  6. Low Power Adaptive Equaliser Architectures for Wireless LMMSE Receivers

    E-Print Network [OSTI]

    Tennant, Mark P

    2007-01-01T23:59:59.000Z

    Power consumption requires critical consideration during system design for portable wireless communication devices as it has a direct influence on the battery weight and volume required for operation. Wideband Code ...

  7. Mineral Requirements of Sheep.

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1918-01-01T23:59:59.000Z

    constituents in feed, residues, and excrements were estimated. In connection with other digestion experiments, estimates were made of certain ash constituents in feeds, excrements and urine. The results of this work throw light upon the mineral requirements...,11 grams phosphoric acid. The ratio of lime to phosphoric acid in tri- calcium phosphate is 1 :0.80. Table 7.-Average magnesia eaten and digested. BALANCE EXPEBIMENTS In twenty tests with ten rations, the urine was analyzed in addition to the feeds...

  8. Hermitian Analyticity, IR/UV Mixing and Unitarity of Noncommutative Field Theories

    E-Print Network [OSTI]

    Chong-Sun Chu; Jerzy Lukierski; Wojtek J. Zakrzewski

    2002-01-31T23:59:59.000Z

    The IR/UV mixing and the violation of unitarity are two of the most intriguing aspects of noncommutative quantum field theories. In this paper the relation between these two phenomena is explained and established. We start out by showing that the S-matrix of noncommutative field theories is hermitian analytic. As a consequence, a noncommutative field theory is unitary if the discontinuities of its Feynman diagram amplitudes agree with the expressions calculated using the Cutkosky formulae. These unitarity constraints relate the discontinuities of amplitudes with physical intermediate states; and allow us to see how the IR/UV mixing may lead to a breakdown of unitarity. Specifically, we show that the IR/UV singularity does not lead to the violation of unitarity in the space-space noncommutative case, but it does lead to its violation in a space-time noncommutative field theory. As a corollary, noncommutative field theory without IR/UV mixing will be unitary in both the space-space and space-time noncommutative case. To illustrate this, we introduce and analyse the noncommutative Lee model--an exactly solvable quantum field theory. We show that the model is free from the IR/UV mixing in both the space-space and space-time noncommutative cases. Our analysis is exact. Due to absence of the IR/UV mixing one can expect that the theory is unitary. We present some checks supporting this claim. Our analysis provides a counter example to the generally held beliefs that field theories with space-time noncommutativity are non-unitary.

  9. LEGACY MANAGEMENT REQUIRES INFORMATION

    SciTech Connect (OSTI)

    CONNELL, C.W.; HILDEBRAND, R.D.

    2006-12-14T23:59:59.000Z

    ''Legacy Management Requires Information'' describes the goal(s) of the US Department of Energy's Office of Legacy Management (LM) relative to maintaining critical records and the way those goals are being addressed at Hanford. The paper discusses the current practices for document control, as well as the use of modern databases for both storing and accessing the data to support cleanup decisions. In addition to the information goals of LM, the Hanford Federal Facility Agreement and Consent Order, known as the ''Tri-Party Agreement'' (TPA) is one of the main drivers in documentation and data management. The TPA, which specifies discrete milestones for cleaning up the Hanford Site, is a legally binding agreement among the US Department of Energy (DOE), the Washington State Department of Ecology (Ecology), and the US Environmental Protection Agency (EPA). The TPA requires that DOE provide the lead regulatory agency with the results of analytical laboratory and non-laboratory tests/readings to help guide them in making decisions. The Agreement also calls for each signatory to preserve--for at least ten years after the Agreement has ended--all of the records in its or its contractors, possession related to sampling, analysis, investigations, and monitoring conducted. The tools used at Hanford to meet TPA requirements are also the tools that can satisfy the needs of LM.

  10. BER Science Network Requirements

    SciTech Connect (OSTI)

    Dart, Eli; Tierney, Brian

    2010-11-01T23:59:59.000Z

    The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the US Department of Energy Office of Science, the single largest supporter of basic research in the physical sciences in the United States. In support of the Office of Science programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In April 2010 ESnet and the Office of Biological and Environmental Research, of the DOE Office of Science, organized a workshop to characterize the networking requirements of the science programs funded by BER. The requirements identified at the workshop are summarized and described in more detail in the case studies and the Findings section. A number of common themes emerged from the case studies and workshop discussions. One is that BER science, like many other disciplines, is becoming more and more distributed and collaborative in nature. Another common theme is that data set sizes are exploding. Climate Science in particular is on the verge of needing to manage exabytes of data, and Genomics is on the verge of a huge paradigm shift in the number of sites with sequencers and the amount of sequencer data being generated.

  11. Mechanism of Efficient Anti-Markovnikov Olefin Hydroarylation Catalyzed by Homogeneous Ir(III) Complexes

    SciTech Connect (OSTI)

    Bhalla, Gaurav; Bischof, Steven M; Ganesh, Somesh K; Liu, Xiang Y; Jones, C J; Borzenko, Andrey; Tenn, William J; Ess, Daniel H; Hashiguchi, Brian G; Lokare, Kapil S; Leung, Chin Hin; Oxgaard, Jonas; Goddard, William A; Periana, Roy A

    2011-01-01T23:59:59.000Z

    The mechanism of the hydroarylation reaction between unactivated olefins (ethylene, propylene, and styrene) and benzene catalyzed by [(R)Ir(?-acac-O,O,C{sup 3})-(acac-O,O){sub 2}]{sub 2} and [R-Ir(acac-O,O){sub 2}(L)] (R = acetylacetonato, CH{sub 3}, CH{sub 2}CH{sub 3}, Ph, or CH{sub 2}CH{sub 2}Ph, and L = H{sub 2}O or pyridine) Ir(III) complexes was studied by experimental methods. The system is selective for generating the anti-Markovnikov product of linear alkylarenes (61:39 for benzene + propylene and 98:2 for benzene + styrene). The reaction mechanism was found to follow a rate law with first-order dependence on benzene and catalyst, but a non-linear dependence on olefin. {sup 13}C-labelling studies with CH{sub 3}{sup 13}CH{sub 2}-Ir-Py showed that reversible ?-hydride elimination is facile, but unproductive, giving exclusively saturated alkylarene products. The migration of the {sup 13}C-label from the ? to ?-positions was found to be slower than the CH activation of benzene (and thus formation of ethane and Ph-d{sub 5}-Ir-Py). Kinetic analysis under steady state conditions gave a ratio of the rate constants for CH activation and ?-hydride elimination (k{sub CH}: k{sub ?}) of ~0.5. The comparable magnitude of these rates suggests a common rate determining transition state/intermediate, which has been shown previously with B3LYP density functional theory (DFT) calculations. Overall, the mechanism of hydroarylation proceeds through a series of pre-equilibrium dissociative steps involving rupture of the dinuclear species or the loss of L from Ph-Ir-L to the solvento, 16-electron species, Ph-Ir(acac-O,O){sub 2}-Sol (where Sol refers to coordinated solvent). This species then undergoes trans to cisisomerization of the acetylacetonato ligand to yield the pseudo octahedral species cis-Ph-Ir-Sol, which is followed by olefin insertion (the regioselective and rate determining step), and then activation of the CH bond of an incoming benzene to generate the product and regenerate the catalyst.

  12. Origin of the phase transition in IrTe2: structural modulation and local bonding instability

    SciTech Connect (OSTI)

    Cao, Huibo [ORNL; Chakoumakos, Bryan C [ORNL; Yan, Jiaqiang [ORNL; Zhou, Haidong [ORNL; Custelcean, Radu [ORNL; Mandrus, D. [University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL); McGuire, Michael A [ORNL; Singh, David J [ORNL; Chen, Xin [ORNL; Yang, Hui [University of Tennessee, Knoxville (UTK)

    2013-01-01T23:59:59.000Z

    We used X-ray/neutron diffraction to determine the low temperature (LT) structure of IrTe2. A structural modulation was observed with a wavevector of k =(1/5, 0, 1/5) below Ts285 K, accompanied by a structural transition from a trigonal to a triclinic lattice. We also performed the first principles calculations for high temperature (HT) and LT structures, which elucidate the nature of the phase transition and the LT structure. A local bonding instability associated with the Te 5p states is likely the origin of the structural phase transition in IrTe2.

  13. Received 25 March 2002 Accepted 6 August 2002

    E-Print Network [OSTI]

    Received 25 March 2002 Accepted 6 August 2002 Published online 9 December 2002 Nuclear markers reveal unexpected genetic variation and a Congolese­Nilotic origin of the Lake Victoria cichlid species flock Ole Seehausen1,2* , Egbert Koetsier2 , Maria Victoria Schneider2 , Lauren J. Chapman3,4 , Colin A

  14. BLIND RECEIVERS FOR MISO COMMUNICATION SYSTEMS USING A NONLINEAR PRECODER

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    BLIND RECEIVERS FOR MISO COMMUNICATION SYSTEMS USING A NONLINEAR PRECODER Alain Y. Kibangou GIPSA.Kibangou@ujf-grenoble.fr ABSTRACT In this paper, we propose two blind decoding approaches for multi-input single-output (MISO of simulations. 1. INTRODUCTION Multi-input Single Output (MISO) communication channel modelling occurs when

  15. MODELLING OF CAVITY RECEIVER HEAT TRANSFER COMPACT LINEAR FRESNEL REFLECTOR

    E-Print Network [OSTI]

    . This approach allows an affordable entry into renewable energy for existing coal-power producers, and allows them to meet the mandatory renewable energy targets set by the government of New South Wales . (Hu et) linear absorbers, achieving higher ground area efficiency. Receiver is an inverted, trapezoidal, linear

  16. DESIGN OF THE TRANSCONDUCTANCE AMPLIFIER FOR FREQUENCY DOMAIN SAMPLING RECEIVER

    E-Print Network [OSTI]

    Chen, XI

    2010-01-16T23:59:59.000Z

    -1. Introduction and motivation of the high resolution & high sampling rate ADC ........................................................................ 27 3-2. Specifications of the Gm stage ..................................................... 28... 3-3. Circuit design of the Gm stage ...................................................... 29 IV A DIFFERENTIAL NOISE CANCELLING LOW NOISE TRANSCONDUCTANCE AMPLIFIER FOR DRIVING THE FD RF COMMUNICATION RECEIVER...

  17. Received 11 January 2002 Accepted 1 March 2002

    E-Print Network [OSTI]

    Pratt, Stephen

    Received 11 January 2002 Accepted 1 March 2002 Published online 29 May 2002 Deciding on a new home, Bristol BS8 1UG, UK 5 Section of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA nectar sources, ants stub- bornly wasting energy on longer routes--can be adaptive in the long term

  18. Shipping and Receiving Dangerous Goods at Georgia Tech

    E-Print Network [OSTI]

    Shipping and Receiving Dangerous Goods at Georgia Tech Contacts: Biological Shipments: Shane://industry.gatech.edu/researchers/forms) GENERAL: The transportation of dangerous goods is regulated by a number of national and international of Dangerous Goods (Flash). PROCESS: 1) All shipments must have a Document Id number as well as a People

  19. top 3 winners receive one of the following

    E-Print Network [OSTI]

    Rock, Chris

    top 3 winners receive one of the following: iPad GoPro Camera Mountain Bike TOP 20 AT THE COMMONS FOR THE REMAINDER OF THE SEMESTER! TOP THAT AT TEXAS TECH! Sauce It, Stack It, Slice It. Any Way Pizza Contest TOP THAT! CREATIVE PIZZA CONTEST ENTRY FORM JUDGING CRITERIA: Among all qualified entries

  20. Organizational Science Doctoral Student Receives NCA Honor By Lynn Roberson

    E-Print Network [OSTI]

    Kelly, Scott David

    Organizational Science Doctoral Student Receives NCA Honor By Lynn Roberson Communications Director College of Liberal Arts & Sciences UNC Charlotte Organizational Science Ph.D. student David Askay has Dr. Steven Rogelberg, director of organizational science at UNC Charlotte. "His research holds great

  1. A Wideband OOK Receiver for Wireless Capsule Yanping Zhou# 1

    E-Print Network [OSTI]

    Nam, Sangwook

    . The storage capacitor of the envelope detector is optimized to obtain good sensitivity and high data rate receiver has simple structure, it can be implemented with a small chip size. Traditional super- heterodyne) and demodulator. Usually off-chip resistors and capacitors are necessary for the loop filter in the PLL. The OOK

  2. Electrical and Computer Engineering Professor Sanjay Krishna Receives Awards

    E-Print Network [OSTI]

    New Mexico, University of

    Electrical and Computer Engineering Professor Sanjay Krishna Receives Awards April 1, 2013 and regents' lecturer will be presented with the Young Scientist Award for 2013 from the International Symposium of Compound Semiconductors in May at their meeting in Kobe, Japan. The award, which

  3. Received 9 June 2004 Accepted 25 June 2004

    E-Print Network [OSTI]

    Davies, Jonathan

    dependent on solar energy input. Previous work demonstrated a sig- nificant correlation between the generalReceived 9 June 2004 Accepted 25 June 2004 Published online 24 September 2004 Environmental energy Biology, Imperial College London, Silwood Park Campus, Ascot SL5 7PY, UK 2 Molecular Systematics Section

  4. BES Science Network Requirements

    SciTech Connect (OSTI)

    Dart, Eli; Tierney, Brian; Dart, Eli; Biocca, A.; Carlson, R.; Chen, J.; Cotter, S.; Dattoria, V.; Davenport, J.; Gaenko, A.; Kent, P.; Lamm, M.; Miller, S.; Mundy, C.; Ndousse, T.; Pederson, M.; Perazzo, A.; Popescu, R.; Rouson, D.; Sekine, Y.; Sumpter, B.; Wang, C.-Z.; Whitelam, S.; Zurawski, J.

    2011-02-01T23:59:59.000Z

    The Energy Sciences Network (ESnet) is the primary provider of network connectivityfor the US Department of Energy Office of Science (SC), the single largest supporter of basic research in the physical sciences in the United States. In support of the Office ofScience programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years.

  5. NERSC Requirements Workshop November

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gif Directorate - Events -ExascalemadeArchivalRequirements

  6. Requirements Review Reports

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand Requirements Recently ApprovedReliability TechnologyRenewalReportReportsJ.TO9Complex

  7. Documentation Requirements for Sensory Impairments

    E-Print Network [OSTI]

    Documentation Requirements for Sensory Impairments Vision and Hearing Students, faculty, staff documentation requirements: 1. Requirements of the PRACTITIONER: A) Ophthalmologists and optometrists of interest. C) Documentation must be typed, dated and signed by the evaluator and submitted to ODR

  8. Public Health Pesticide Inventory IR4/Karl MalamudRoam 4/11/2012 7:22 AM 2 Public Health Pesticide Inventory IR4/Karl MalamudRoam 4/11/2012 7:22 AM 3

    E-Print Network [OSTI]

    stici f Too ide ols fo s or #12; Public Health Pesticide Inventory ©IR4/Karl MalamudRoam 4/11/2012 7:22 AM 2 #12; Public Health Pesticide Inventory ©IR4/Karl MalamudRoam 4/11/2012 7 semiochemicals can be used effectively, safety, and legally for vector control. This inventory of public health

  9. Public Health Pesticide Inventory IR4/Karl MalamudRoam 4/11/2012 9:54 AM 2 Public Health Pesticide Inventory IR4/Karl MalamudRoam 4/11/2012 9:54 AM 3

    E-Print Network [OSTI]

    To stici of ools ide for s #12; Public Health Pesticide Inventory ©IR4/Karl MalamudRoam 4/11/2012 9:54 AM 2 #12; Public Health Pesticide Inventory ©IR4/Karl MalamudRoam 4/11/2012 9. This inventory of public health pesticides is intended to address two primary questions: 1) what chemical tools

  10. ENVIRONMENTAL HEALTH SCIENCES Plan Requirements Campus: UMICH RG = Requirement Group

    E-Print Network [OSTI]

    Shyy, Wei

    ENVIRONMENTAL HEALTH SCIENCES Plan Requirements Campus: UMICH RG = Requirement Group Career: GPH RQ = Requirement Program: 01848 LN = Line Plan: 3200MPH RG 5298 ENVIRONMENTAL HEALTH SCIENCES REQUIREMENTS, 643, 653, 675, 677 or 695 LN 0030 - Environmental Health Sciences: EHS 501, 506, 507 or 508 LN 0040

  11. Thermal measurements of active semiconductor micro-structures acquired through the substrate using near IR thermoreflectance

    E-Print Network [OSTI]

    , which precludes the use of typical surface thermal characterization techniques. A near infrared microscopy (SThM), or optical techniques such as infrared (IR) microscopy, or thermoreflectance to be able to measure the heating of devices in flip chip bonded integrated circuit's (IC) and other

  12. Fractal Plasmonics: Fabrication of "Cayley Tree Nanoantennas" and Characterization of Their Near-IR Plasmon Resonances

    E-Print Network [OSTI]

    GP-B-18 Fractal Plasmonics: Fabrication of "Cayley Tree Nanoantennas sensing, photothermal therapy, and wave guiding. In our present study structures with fractal and self into the visible and near-IR regions of the spectrum. Additionally, fractal geometries may give rise to multiple

  13. Hydrogen Bond Migration between Molecular Sites Observed with Ultrafast 2D IR Chemical Exchange Spectroscopy

    E-Print Network [OSTI]

    Fayer, Michael D.

    Hydrogen Bond Migration between Molecular Sites Observed with Ultrafast 2D IR Chemical ExchangeVed: January 12, 2010 Hydrogen-bonded complexes between phenol and phenylacetylene are studied using ultrafast hydrogen bonding acceptor sites (phenyl or acetylene) that compete for hydrogen bond donors in solution

  14. On the difference between type E and A OH/IR stars

    E-Print Network [OSTI]

    J. H. He; P. S. Chen

    2005-03-25T23:59:59.000Z

    The observed SEDs of a sample of 60 OH/IR stars are fitted using a radiative transfer model of a dusty envelope. Among the whole sample, 21 stars have reliable phase-lag distances while the others have less accurate distances. L*-P,Mlr-P and Mlr-L* relations have been plotted for these stars. It is found that type E (with emission feature at 10um and type A (with absorption feature at 10um) OH/IR stars have different L*-P and Mlr-L* relations while both of them follow a single Mlr-P relation. The type E stars are proven to be located in the area without large scale dense interstellar medium while the type A stars are located probably in dense interstellar medium. It is argued here that this may indicate the two types of OH/IR stars have different chemical composition or zero age main sequence mass and so evolve in different ways. This conclusion has reinforced the argument by Chen et al.(2001) who reached a similar conclusion from the galactic distribution of about 1000 OH/IR stars with the IRAS low-resolution spectra (LRS).

  15. ELSEVIER International Journal of Industrial Ergonomics 17 (1996) 285-290 Ir~ernattonatlournalc~

    E-Print Network [OSTI]

    Radwin, Robert G.

    1996-01-01T23:59:59.000Z

    ELSEVIER International Journal of Industrial Ergonomics 17 (1996) 285-290 Ir~ernattonatlournalc~ Industrial Ergonomics Short communication A new method for extending the range of conductive polymer sensors measurement instruments are important for providing ergonomics practitioners with a quantitative means

  16. Next Generation Optical Fiber for IR Applications: Novel Materials and NanoScale Textures

    E-Print Network [OSTI]

    Van Stryland, Eric

    Next Generation Optical Fiber for IR Applications: Novel Materials and NanoScale Textures Axel, Orlando, FL 32816, USA #12;Outline Impact of fiber optics What are next generation optical fibers achievements concerning the transmission of light in fibers for optical communication" Charles K. Kao Brief

  17. Interplay of IR-Improved DGLAP-CS Theory and NLO Parton Shower MC Precision

    E-Print Network [OSTI]

    Ward, B F L; Yost, S A

    2013-01-01T23:59:59.000Z

    We present the interplay between the new IR-improved DGLAP-CS theory and the precision of NLO parton shower/ME matched MC`s as it is realized by the new MC Herwiri1.031 in interface to MC@NLO. We discuss phenomenological implications using comparisons with recent LHC data on single heavy gauge boson production.

  18. Application of Wavelet Packet Transform in Pattern Recognition of Near-IR Data

    E-Print Network [OSTI]

    Guerrini, Carla

    . Construction of the pattern space: selection of representative training data. Data pretreatment: reduction is not methodical; it is a matter of common sense to select meaningful objects and variables. Data pretreat- ment, they are related to Fourier transformation, which has also been suggested for pretreating near-IR data.11 DWT

  19. Intern report ; IR 2008-01 Site speci c hazard estimates

    E-Print Network [OSTI]

    Stoffelen, Ad

    Intern report ; IR 2008-01 Site speci c hazard estimates for the LNG energy plant in the Europoort for the LNG energy plant in the Europoort area T. van Eck, F.H. Goutbeek, B. Dost De Bilt, February 2008 #12 differ significantly. Figure 1. Situation overview. The site of the LNG plant situated in the center

  20. A Touch Panel using Silicone Rubber with embedded IR-LEDs Yuichiro Sakamoto,

    E-Print Network [OSTI]

    Tanaka, Jiro

    LED LED FTIR FTIR FTIR FTIR FTIR LED LED A Touch Panel using Silicone Rubber with embedded Shizuki and Jiro Tanaka In this paper, we present a novel touch panel using silicone rubber with embedded are difficult to detect for one made of acryl panel Moreover, it integrates IR-LEDs silicone rubber for multi

  1. CONSTRUCTING AN ELASTIC TOUCH PANEL WITH EMBEDDED IR-LEDS USING SILICONE RUBBER

    E-Print Network [OSTI]

    Tanaka, Jiro

    CONSTRUCTING AN ELASTIC TOUCH PANEL WITH EMBEDDED IR-LEDS USING SILICONE RUBBER Yuichiro Sakamoto a technique for the construction of an elastic touch panel using silicone rubber. The technique is similar is made of transparent silicone rubber rather than acrylic. Moreover, we embedded infrared LEDs within

  2. Thermodynamics and superconductivity of Th7(Fe, Ru, Os, Co, Rh, Ir)3 system

    SciTech Connect (OSTI)

    Smith, James L [Los Alamos National Laboratory; Lashley, Jason C [Los Alamos National Laboratory; Volz, Heather M [Los Alamos National Laboratory; Fisher, Robert A [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Expanding the temperature range of previous specific-heat measurements on the Th7(Fe, Ru, Os, Co, Rh, Ir)3 system, we measure the effect of transition-metal substitution on total entropy (S{sub 298 k}), electronic specific heat ({gamma}), and Debye temperature ({Theta}D). In addition we measure the pressure dependence, up to 10 kbar, of the superconducting transition.

  3. Deposition dynamics and chemical properties of size-selected Ir clusters on TiO2

    E-Print Network [OSTI]

    Anderson, Scott L.

    reserved. Keywords: Iridium; Clusters; Titanium oxide; X-ray photoelectron spectroscopy; Low energy ion report a study of Irn/TiO2 samples prepared by size and energy-selected deposition of Ir n (n 1, 2, 5 in the zero oxidation state, and there are no significant shifts in Ir 4f binding energy with cluster size

  4. Minimizing Energy Consumption in IR-UWB Based Wireless Sensor Networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

    Minimizing Energy Consumption in IR-UWB Based Wireless Sensor Networks Tianqi Wang, Wendi communications systems, where transmit power can be flexibly adjusted to minimize the energy consumption [3] [4 Heinzelman and Alireza Seyedi Department of Electrical and Computer Engineering, University of Rochester

  5. Ionwater hydrogen-bond switching observed with 2D IR vibrational echo chemical

    E-Print Network [OSTI]

    Fayer, Michael D.

    Ion­water hydrogen-bond switching observed with 2D IR vibrational echo chemical exchange for review November 8, 2008) The exchange of water hydroxyl hydrogen bonds between anions and water oxygens of anion­ water hydroxyl hydrogen bond switching under thermal equilib- rium conditions as Taw 7 1 ps. Pump

  6. Neuroglobin dynamics observed with ultrafast 2D-IR vibrational echo spectroscopy

    E-Print Network [OSTI]

    Fayer, Michael D.

    Neuroglobin dynamics observed with ultrafast 2D-IR vibrational echo spectroscopy Haruto Ishikawa Contributed by Michael D. Fayer, August 15, 2007 (sent for review July 25, 2007) Neuroglobin (Ngb), a protein energy minimum. myoglobin mutants protein dynamics energy landscape Neuroglobin (Ngb) is a recently

  7. Report BNL-98726-2012-IR Tech. Note C-AD/AP/470

    E-Print Network [OSTI]

    Ohta, Shigemi

    Report BNL-98726-2012-IR Tech. Note C-AD/AP/470 Oct. 2012 ZGOUBI USERS' GUIDE ZGOUBI ON WEB : http://sourceforge.net/projects/zgoubith EDITION (1997) 13 INTRODUCTION 15 1 NUMERICAL CALCULATION OF MOTION AND FIELDS 17 1.1 zgoubi Frame

  8. Comparative Investigation of Benzene Steam Reforming over Spinel Supported Rh and Ir Catalysts

    SciTech Connect (OSTI)

    Mei, Donghai; Lebarbier, Vanessa MC; Rousseau, Roger J.; Glezakou, Vassiliki Alexandra; Albrecht, Karl O.; Kovarik, Libor; Flake, Matthew D.; Dagle, Robert A.

    2013-06-01T23:59:59.000Z

    In a combined experimental and first-principles density functional theory (DFT) study, benzene steam reforming (BSR) over MgAl2O4 supported Rh and Ir catalysts was investigated. Experimentally, it has been found that both highly dispersed Rh and Ir clusters (1-2 nm) on the MgAl2O4 spinel support are stable during the BSR in the temperature range of 700-850?C. Compared to the Ir/MgAl2O4 catalyst, the Rh/MgAl2O4 catalyst is more active with higher benzene turnover frequency and conversion. At typical steam conditions with the steam-to-carbon ratio > 12, the benzene conversion is only a weak function of the H2O concentration in the feed. This suggests that the initial benzene decomposition step rather than the benzene adsorption is most likely the rate-determined step in BSR over supported Rh and Ir catalysts. In order to understand the differences between the two catalysts, we followed with a comparative DFT study of initial benzene decomposition pathways over two representative model systems for each supported metal (Rh and Ir) catalysts. A periodic terrace (111) surface and an amorphous 50-atom metal cluster with a diameter of 1.0 nm were used to represent the two supported model catalysts under low and high dispersion conditions. Our DFT results show that the decreasing catalyst particle size enhances the benzene decomposition on supported Rh catalysts by lowering both C-C and C-H bond scission. The activation barriers of the C-C and the C-H bond scission decrease from 1.60 and 1.61 eV on the Rh(111) surface to 1.34 and 1.26 eV on the Rh50 cluster. For supported Ir catalysts, the decreasing particle size only affects the C-C scission. The activation barrier of the C-C scission of benzene decreases from 1.60 eV on the Ir(111) surface to 1.35 eV on the Ir50 cluster while the barriers of the C-H scission are practically the same. The experimentally measured higher BSR activity on the supported highly dispersed Rh catalyst can be rationalized by the thermodynamic limitation for the very first C-C bond scission of benzene on the small Ir50 catalyst. The C-C bond scission of benzene on the small Ir50 catalyst is highly endothermic although the barrier is competitive with the barriers of both the C-C and the C-H bond-breakings on the small Rh50 catalyst. The calculations also imply that, for the supported Rh catalysts the C-C and C-H bond scissions are competitive, independently of the Rh cluster sizes. After the initial dissociation step via either the C-C or the C-H bond scission, the C-H bond breaking seems to be more favorable rather than the C-C bond breaking on the larger Rh terrace surface. This work was financially supported by the United States Department of Energys Office of Biomass Programs. Computing time was granted by a user project at the Molecular Science Computing Facility in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory.

  9. Big picture Ads Duplicate detection Spam Web IR Size of the web Web Search and Text Mining

    E-Print Network [OSTI]

    Gray, Alexander

    Big picture Ads Duplicate detection Spam Web IR Size of the web Web Search and Text Mining http://www.cc.gatech.edu/~agray/6240spr11 IIR 19: Web Search Basics Alexander Gray Georgia Institute of Technology, College of Computing 2011 Gray: Web Search Basics 1 / 117 #12;Big picture Ads Duplicate detection Spam Web IR Size

  10. Synthesis, Structure, and Reactivity of O-Donor Ir(III) Complexes: C-H Activation Studies with Benzene

    E-Print Network [OSTI]

    Goddard III, William A.

    with Benzene Gaurav Bhalla, Xiang Yang Liu, Jonas Oxgaard, William A. Goddard, III, and Roy A. Periana. All the R-Ir-Py complexes undergo quantitative, intermolecular CH activation reactions with benzene to benzene to generate a discrete benzene complex, cis-R-Ir-PhH; and (D) rapid C-H cleavage. Kinetic isotope

  11. Equipment Operational Requirements

    SciTech Connect (OSTI)

    Greenwalt, B; Henderer, B; Hibbard, W; Mercer, M

    2009-06-11T23:59:59.000Z

    The Iraq Department of Border Enforcement is rich in personnel, but poor in equipment. An effective border control system must include detection, discrimination, decision, tracking and interdiction, capture, identification, and disposition. An equipment solution that addresses only a part of this will not succeed, likewise equipment by itself is not the answer without considering the personnel and how they would employ the equipment. The solution should take advantage of the existing in-place system and address all of the critical functions. The solutions are envisioned as being implemented in a phased manner, where Solution 1 is followed by Solution 2 and eventually by Solution 3. This allows adequate time for training and gaining operational experience for successively more complex equipment. Detailed descriptions of the components follow the solution descriptions. Solution 1 - This solution is based on changes to CONOPs, and does not have a technology component. It consists of observers at the forts and annexes, forward patrols along the swamp edge, in depth patrols approximately 10 kilometers inland from the swamp, and checkpoints on major roads. Solution 2 - This solution adds a ground sensor array to the Solution 1 system. Solution 3 - This solution is based around installing a radar/video camera system on each fort. It employs the CONOPS from Solution 1, but uses minimal ground sensors deployed only in areas with poor radar/video camera coverage (such as canals and streams shielded by vegetation), or by roads covered by radar but outside the range of the radar associated cameras. This document provides broad operational requirements for major equipment components along with sufficient operational details to allow the technical community to identify potential hardware candidates. Continuing analysis will develop quantities required and more detailed tactics, techniques, and procedures.

  12. Optimization of Multiple Receivers Solar Power Tower systems

    E-Print Network [OSTI]

    2015-04-08T23:59:59.000Z

    Apr 8, 2015 ... Solar Power Tower (SPT) systems are known as one of the most promising ...... An appropriate control is required to adapt the mass flow in the...

  13. ENGINEERING PHYSICS BSE Plan Requirements

    E-Print Network [OSTI]

    Shyy, Wei

    ENGINEERING PHYSICS BSE Plan Requirements 1 Campus: UMICH RG = Requirement Group Career: UENG RQ = Requirement Program: LN = Line Plan: 2990BSE RG 6394 ENGINEERING PHYSICS MAJOR REQUIREMENTS Effective FA12/1910 (09/04/2012) RQ 4925 Physics Technical Subjects (C or higher) Effective FA12/1910 (09/04/2012) LN 0010

  14. Receiver for solar energy collector having improved aperture aspect

    DOE Patents [OSTI]

    McIntire, William R. (Downers Grove, IL)

    1984-01-01T23:59:59.000Z

    A secondary concentrator for use in receiver systems for linear focusing primary concentrators is provided with reflector wings at each end. The wings increase the capture of light rays reflected from areas adjacent the rim of a primary concentrator, increasing the apparent aperture size of the absorber as viewed from the rim of the primary concentrator. The length, tilt, and curvature of the wing reflectors can be adjusted to provide an absorber having a desired aperture aspect.

  15. Providing protection: Agencies receive funding to repair, upgrade dams

    E-Print Network [OSTI]

    Wythe, Kathy

    2009-01-01T23:59:59.000Z

    Story by Kathy Wythe tx H2O | pg. 26 Providing protection Agencies receive funding to repair, upgrade dams along with local partners, can apply for grant funds, he said. Construction of the dams began through four federal authorizations..., called floodwater retarding structures and built mostly in rural areas during the 1950s to 1970s, are aging and need repairing. Others now protect urban areas that have developed downstream and need upgrading to meet more stringent safety standards...

  16. Taxation of oil and gas payments received independent of production

    SciTech Connect (OSTI)

    Fambrough, J.

    1983-06-01T23:59:59.000Z

    Several economic incentives are offered to mineral owners for entering into an oil and gas lease. These are: (1) a bonus; (2) a delay rental; (3) a royalty. This article is intended to aid in the understanding of the tax treatment for these oil and gas payments, received independent of production, in order to avoid any tax penalties and to elucidate a tax-minimization strategy. 11 references, 7 tables. (NLG)

  17. Digital-data receiver synchronization method and apparatus

    DOE Patents [OSTI]

    Smith, Stephen F.; Turner, Gary W.

    2005-12-06T23:59:59.000Z

    Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock may be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  18. Digital-data receiver synchronization method and apparatus

    DOE Patents [OSTI]

    Smith, Stephen F. (Loudon, TN) [Loudon, TN; Turner, Gary W. (Clinton, TN) [Clinton, TN

    2009-09-08T23:59:59.000Z

    Digital data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  19. TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus ...

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

    Archived News Stories Latest News TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus 2 Cornellians receive Distinguished Scholar Award Versatile polymer film...

  20. Y-12 CIO Travis Howerton Receives 2009 Linton Brooks Medal for...

    National Nuclear Security Administration (NNSA)

    Home Field Offices Welcome to the NNSA Production Office NPO News Releases Y-12 CIO Travis Howerton Receives 2009 Linton ... Y-12 CIO Travis Howerton Receives 2009...

  1. Nanofluid-based receivers for high-temperature, high-flux direct solar collectors

    E-Print Network [OSTI]

    Lenert, Andrej

    2010-01-01T23:59:59.000Z

    Solar power plants with surface receivers have low overall energy conversion efficiencies due to large emissive losses at high temperatures. Alternatively, volumetric receivers promise increased performance because solar ...

  2. Power efficiency for very high temperature solar thermal cavity receivers

    DOE Patents [OSTI]

    McDougal, Allan R. (LaCanada-Flintridge, CA); Hale, Robert R. (Upland, CA)

    1984-01-01T23:59:59.000Z

    This invention is an improved solar energy cavity receiver for exposing materials and components to high temperatures. The receiver includes a housing having an internal reflective surface defining a cavity and having an inlet for admitting solar radiation thereto. A photothermal absorber is positioned in the cavity to receive radiation from the inlet. A reflective baffle is positioned between the absorber and the inlet to severely restrict the re-radiation of energy through the inlet. The front surface of the baffle defines a narrow annulus with the internal reflective surface of the housing. The front surface of the baffle is contoured to reflect incoming radiation onto the internal surface of the housing, from which it is reflected through the annulus and onto the front surface of the absorber. The back surface of the baffle intercepts infrared radiation from the front of the absorber. With this arrangement, a high percentage of the solar power input is retained in the cavity; thus, high internal temperatures are attained.

  3. Combustion system for hybrid solar fossil fuel receiver

    DOE Patents [OSTI]

    Mehos, Mark S.; Anselmo, Kenneth M.; Moreno, James B.; Andraka, Charles E.; Rawlinson, K. Scott; Corey, John; Bohn, Mark S.

    2004-05-25T23:59:59.000Z

    A combustion system for a hybrid solar receiver comprises a pre-mixer which combines air and fuel to form an air-fuel mixture. The mixture is introduced tangentially into a cooling jacket. A burner plenum is fluidically connected to the cooling jacket such that the burner plenum and the cooling jacket are arranged in thermal contact with one another. The air-fuel mixture flows through the cooling jacket cooling the burner plenum to reduce pre-ignition of the air-fuel mixture in the burner plenum. A combustion chamber is operatively associated with and open to the burner plenum to receive the air-fuel mixture from the burner plenum. An igniter is operatively positioned in the combustion chamber to combust the air-fuel mixture, releasing heat. A recuperator is operatively associated with the burner plenum and the combustion chamber and pre-heats the air-fuel mixture in the burner plenum with heat from the combustion chamber. A heat-exchanger is operatively associated and in thermal contact with the combustion chamber. The heat-exchanger provides heat for the hybrid solar receiver.

  4. ASCR Science Network Requirements

    SciTech Connect (OSTI)

    Dart, Eli; Tierney, Brian

    2009-08-24T23:59:59.000Z

    The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the US Department of Energy Office of Science, the single largest supporter of basic research in the physical sciences in the United States. In support of the Office of Science programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In April 2009 ESnet and the Office of Advanced Scientific Computing Research (ASCR), of the DOE Office of Science, organized a workshop to characterize the networking requirements of the programs funded by ASCR. The ASCR facilities anticipate significant increases in wide area bandwidth utilization, driven largely by the increased capabilities of computational resources and the wide scope of collaboration that is a hallmark of modern science. Many scientists move data sets between facilities for analysis, and in some cases (for example the Earth System Grid and the Open Science Grid), data distribution is an essential component of the use of ASCR facilities by scientists. Due to the projected growth in wide area data transfer needs, the ASCR supercomputer centers all expect to deploy and use 100 Gigabit per second networking technology for wide area connectivity as soon as that deployment is financially feasible. In addition to the network connectivity that ESnet provides, the ESnet Collaboration Services (ECS) are critical to several science communities. ESnet identity and trust services, such as the DOEGrids certificate authority, are widely used both by the supercomputer centers and by collaborations such as Open Science Grid (OSG) and the Earth System Grid (ESG). Ease of use is a key determinant of the scientific utility of network-based services. Therefore, a key enabling aspect for scientists beneficial use of high performance networks is a consistent, widely deployed, well-maintained toolset that is optimized for wide area, high-speed data transfer (e.g. GridFTP) that allows scientists to easily utilize the services and capabilities that the network provides. Network test and measurement is an important part of ensuring that these tools and network services are functioning correctly. One example of a tool in this area is the recently developed perfSONAR, which has already shown its usefulness in fault diagnosis during the recent deployment of high-performance data movers at NERSC and ORNL. On the other hand, it is clear that there is significant work to be done in the area of authentication and access control - there are currently compatibility problems and differing requirements between the authentication systems in use at different facilities, and the policies and mechanisms in use at different facilities are sometimes in conflict. Finally, long-term software maintenance was of concern for many attendees. Scientists rely heavily on a large deployed base of software that does not have secure programmatic funding. Software packages for which this is true include data transfer tools such as GridFTP as well as identity management and other software infrastructure that forms a critical part of the Open Science Grid and the Earth System Grid.

  5. Overexpression of IRS2 in isolated pancreatic islets causes proliferation and protects human {beta}-cells from hyperglycemia-induced apoptosis

    SciTech Connect (OSTI)

    Mohanty, S. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland); Spinas, G.A. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland); Maedler, K. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland); Zuellig, R.A. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland); Lehmann, R. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland); Donath, M.Y. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland); Trueb, T. [Universitaetsverwaltung, Stab fuer Sachmittel-Kredite, KUN110, Kuenstlergasse 15, 8001 Zurich (Switzerland); Niessen, M. [Division of Endocrinology and Diabetes, University Hospital of Zurich, 8091 Zurich (Switzerland)]. E-mail: markus.niessen@usz.ch

    2005-02-01T23:59:59.000Z

    Studies in vivo indicate that IRS2 plays an important role in maintaining functional {beta}-cell mass. To investigate if IRS2 autonomously affects {beta}-cells, we have studied proliferation, apoptosis, and {beta}-cell function in isolated rat and human islets after overexpression of IRS2 or IRS1. We found that {beta}-cell proliferation was significantly increased in rat islets overexpressing IRS2 while IRS1 was less effective. Moreover, proliferation of a {beta}-cell line, INS-1, was decreased after repression of Irs2 expression using RNA oligonucleotides. Overexpression of IRS2 in human islets significantly decreased apoptosis of {beta}-cells, induced by 33.3 mM D-glucose. However, IRS2 did not protect cultured rat islets against apoptosis in the presence of 0.5 mM palmitic acid. Overexpression of IRS2 in isolated rat islets significantly increased basal and D-glucose-stimulated insulin secretion as determined in perifusion experiments. Therefore, IRS2 is sufficient to induce proliferation in rat islets and to protect human {beta}-cells from D-glucose-induced apoptosis. In addition, IRS2 can improve {beta}-cell function. Our results indicate that IRS2 acts autonomously in {beta}-cells in maintenance and expansion of functional {beta}-cell mass in vivo.

  6. Dangerous Goods Shipping Federal and international shipping rules require that anyone wishing to ship biological materials,

    E-Print Network [OSTI]

    Jiang, Huiqiang

    Dangerous Goods Shipping Federal and international shipping rules require that anyone wishing to ship biological materials, infectious substances, or dry ice must complete training in Dangerous Goods. In order to receive the required certification for shipping Dangerous Goods, you must: 1. Review

  7. Dr. Douglas G. Horner Receives Research Award Dr. Douglas G. Horner, OD PhD, has received an award to support a new collaborative

    E-Print Network [OSTI]

    Indiana University

    Dr. Douglas G. Horner Receives Research Award Dr. Douglas G. Horner, OD PhD, has received an award. Peabody, OD, of IUSO on, "Developing and Implementing 21st Century Ideas on Optometry through Area Studies

  8. Paul Moore Receives Top Oklahoma Art Awards NORMAN --Paul Moore, University of Oklahoma Artist-In-Residence, will receive a Special Recognition

    E-Print Network [OSTI]

    Oklahoma, University of

    Paul Moore Receives Top Oklahoma Art Awards NORMAN -- Paul Moore, University of Oklahoma Artist-In-Residence, will receive a Special Recognition Award Awards Ceremony at the Oklahoma Capitol Nov. 13. Moore is currently working

  9. Application of Reinforcement Learning to Requirements Engineering: Requirements Tracing

    E-Print Network [OSTI]

    Hayes, Jane E.

    of the Software Development Life Cycle (SDLC) can be appreciated by the customers who request and expect delivery the phases of the SDLC, a number of steps can be taken. Requirements tracing ensures that requirements

  10. SONY GXB5005 GPS RECEIVER DATA Without shield can Installed With shield can in place

    E-Print Network [OSTI]

    Berns, Hans-Gerd

    SONY GXB5005 GPS RECEIVER DATA Without shield can Installed With shield can in place (for illustrative purposes only) The Sony GXB5005 GPS receiver is a miniature 12 channel GPS module with support for WAAS/EGNOS augmented positioning. The receiver is based on Sony's CXD2951 single-chip GPS receiver IC

  11. 2090 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 7, JULY 2009 Turbo Receivers for

    E-Print Network [OSTI]

    Benoît, Escrig

    2090 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 7, JULY 2009 Turbo Receivers for Interleave turbo receivers for Interleave- Division Multiple-Access (IDMA) systems will be discussed. The multiple provides faster convergence of the turbo receiver. The discussed turbo receivers will be evaluated by means

  12. Laboratory researcher Joel Rowland to receive DOE Early Career Award

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home asLCLSLaboratoryRowland to receive DOE Early Career

  13. NREL: Concentrating Solar Power Research - Receiver R&D

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gifNREL NRELChemical andWhat IsThermalReceiver R&D

  14. Hanford Projects Receive Sustainability Awards | Department of Energy

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked Questions for DOE FYAffairs,Assessment Documents |Project|Projects Receive

  15. Westinghouse receives high marks for management, operation of WIPP

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsing Maps1DOETHEWeeklyTRU Solutions LLC EarnsEarnsReceives

  16. EM Receives Several Honors in 2011 DOE Sustainability Awards | Department

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office ofEnergyFinalEnergy Boosts Efforts to Helpof Energy Receives

  17. The determination of Os and Ir by delayed X-ray spectrometry

    SciTech Connect (OSTI)

    Pillay, A.E.; Mashilo, N. (Univ. of Witwatersrand (South Africa))

    1990-01-01T23:59:59.000Z

    Delayed X-ray spectrometry preceded by fast neutron activation, is a relatively novel application and its capabilities as an analytical tool for the specific determination of Os and Ir in small powdered samples was evaluated. The investigation took the form of a feasibility study which relied heavily on the high sensitivity of the detector used. Detection of the delayed X-rays was achieved with a 100 mm{sup 2} Ge detector whose ability to produce optimum photopeak-to-noise ratios formed the basis exploited in this investigation. Analytical conditions are demonstrated over a range of concentrations for the elements of interest and the potential of the technique for application to the general routine analysis of Os and Ir is discussed. The authors indicate that interferences from the sample matrix can be suppressed to a degree which makes the method almost independent of the matrix. This and other attractive features make the technique a strong rival to conventional activation analysis.

  18. Linear dichroism amplification: Adapting a long-known technique for ultrasensitive femtosecond IR spectroscopy

    SciTech Connect (OSTI)

    Rehault, Julien; Helbing, Jan [Physikalisch-Chemisches Institut, Universitaet Zuerich, Winterthurerstrasse 190, 8057 Zuerich (Switzerland); Zanirato, Vinicio [Dipartimento di Scienze Farmaceutiche, Universita di Ferrara, via Fossato di Mortara 17-19, I-44100 Ferrara (Italy); Olivucci, Massimo [Dipartimento di Chimica, Universita di Siena, via Aldo Moro 2, I-53100 Siena (Italy) and Chemistry Department, Bowling Green State University, Bowling Green, Ohio 43403 (United States)

    2011-03-28T23:59:59.000Z

    We demonstrate strong amplification of polarization-sensitive transient IR signals using a pseudo-null crossed polarizer technique first proposed by Keston and Lospalluto [Fed. Proc. 10, 207 (1951)] and applied for nanosecond flash photolysis in the visible by Che et al. [Chem. Phys. Lett. 224, 145 (1994)]. We adapted the technique to ultrafast pulsed laser spectroscopy in the infrared using photoelastic modulators, which allow us to measure amplified linear dichroism at kilohertz repetition rates. The method was applied to a photoswitch of the N-alkylated Schiff base family in order to demonstrate its potential of strongly enhancing sensitivity and signal to noise in ultrafast transient IR experiments, to simplify spectra and to determine intramolecular transition dipole orientations.

  19. Elimination of IR/UV via Gravity in Noncommutative Field Theory

    E-Print Network [OSTI]

    N. Kersting; J. Yan

    2009-01-05T23:59:59.000Z

    Models of particle physics with Noncommutative Geometry (NCG) generally suffer from a manifestly non-Wilsonian coupling of infrared and ultraviolet degrees of freedom known as the "IR/UV Problem" which would tend to compromise their phenomenological relevance. In this Letter we explicitly show how one may remedy this by coupling NCG to gravity. In the simplest scenario the Lagrangian gets multiplied by a nonconstant background metric; in $\\phi-4$ theory the theorem that $\\int d^4 x \\phi \\star \\phi = \\int d^4 x \\phi^2$ is no longer true and the field propagator gets modified by a factor which depends on both NCG and the variation of the metric. A suitable limit of this factor as the propagating momentum gets asymptotically large then eradicates the IR/UV problem. With gravity and NCG coupled to each other, one might expect anti-symmetric components to arise in the metric. Cosmological implications of such are subsequently discussed.

  20. Enhanced oxygen evolution activity of IrO2 and RuO2 (100) surfaces

    SciTech Connect (OSTI)

    Stoerzinger, Kelsey [Massachusetts Institute of Technology (MIT)] [Massachusetts Institute of Technology (MIT); Qiao, Liang [ORNL] [ORNL; Biegalski, Michael D [ORNL] [ORNL; Christen, Hans M [ORNL] [ORNL; Shao-Horn, Yang [Massachusetts Institute of Technology (MIT)] [Massachusetts Institute of Technology (MIT)

    2014-01-01T23:59:59.000Z

    The activities of the oxygen evolution reaction (OER) on IrO2 and RuO2 catalysts are among the highest known to date. However, the intrinsic OER activities of surfaces with defined crystallographic orientations are not well established experimentally. Here we report that the (100) surface of IrO2 and RuO2 is more active than the (110) surface that has been traditionally explored by density functional theory studies. The relation between the OER activity and density of coordinatively undersaturated metal sites exposed on each rutile crystallographic facet is discussed. The surface-orientation dependent activities can guide the design of high-surface-area catalysts with increased activity for electrolyzers, metal-air batteries, and photoelectrochemical water splitting applications.

  1. Received 6 September 2002 Accepted 12 November 2002

    E-Print Network [OSTI]

    , Box 50 007, SE-104 05 Stockholm, Sweden Bird migration requires high energy expenditure, and long in southeast Sweden and exposed to a magnetic treatment simulating a migratory flight to northern Egypt

  2. Role of dipolar correlations in the IR spectra of water and ice

    E-Print Network [OSTI]

    Wei Chen; Manu Sharma; Raffaele Resta; Giulia Galli; Roberto Car

    2008-04-22T23:59:59.000Z

    We report simulated infrared spectra of deuterated water and ice using Car-Parrinello molecular dynamics with maximally localized Wannier functions. Experimental features are accurately reproduced within the harmonic approximation. By decomposing the lineshapes in terms of intra and intermolecular dipole correlation functions we find that short-range intermolecular dynamic charge fluctuations associated to hydrogen bonds are prominent over the entire spectral range. Our analysis reveals the origin of several spectral features and identifies network bending modes in the far IR range.

  3. UV/IR mixing via a Seiberg-Witten map for noncommutative QED

    SciTech Connect (OSTI)

    Raasakka, Matti [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland); Tureanu, Anca [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland); Helsinki Institute of Physics, P.O. Box 64, FIN-00014 Helsinki (Finland)

    2010-06-15T23:59:59.000Z

    We consider quantum electrodynamics in noncommutative spacetime by deriving a Seiberg-Witten map, nonperturbative in {theta}, with fermions in the fundamental representation of the gauge group as an expansion in the coupling constant. Accordingly, we demonstrate the persistence of UV/IR mixing in noncommutative QED with charged fermions via a Seiberg-Witten map, extending the results of Schupp and You [P. Schupp and J. You, J. High Energy Phys. 08 (2008) 107.].

  4. Practical Analysis of materials with depth varying compositions using FT-IR photoacoustic spectroscopy (PAS)

    SciTech Connect (OSTI)

    J.F. McClelland; R.W. Jones; Siquan Luo

    2004-09-30T23:59:59.000Z

    FT-IR photoacoustic spectroscopy (PAS) is discussed as a nondestructive method to probe the molecular composition of materials versus depth on the basis of the analysis of layers of experimentally controllable thickness, which are measured from the sample surface to depths of some tens of micrometers, depending on optical and thermal properties. Computational methods are described to process photoacoustic amplitude and phase spectra for both semi-quantitative and quantitative depth analyses. These methods are demonstrated on layered and gradient samples.

  5. Webinar: Hydrogen Storage Materials Requirements

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, Hydrogen Storage Materials Requirements, originally presented on June 25, 2013.

  6. Sign change of exchange bias in [Pt/Co]{sub 3}/IrMn multilayer

    SciTech Connect (OSTI)

    Yoon, Seungha; Kwon, Joonhyun; Cho, B. K., E-mail: chobk@gist.ac.kr [School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712 (Korea, Republic of)

    2014-05-07T23:59:59.000Z

    The properties of exchange bias in a multilayer of [Pt(1.0?nm)/Co(1.0?nm)]{sub 2}/Pt(t{sub Pt} nm)/Co(1.0?nm)/ IrMn(12.0?nm) were investigated with a variation of Pt layer thickness, t{sub Pt}. For t{sub Pt}???1.6?nm, it was typically observed that Co layers were ferromagnetically coupled while IrMn layer exhibited negative exchange bias. With increasing Pt thickness, antiferromagnetic (AF) interlayer coupling strength increased and caused AF spin configuration between the Co layers. With further increasing of Pt thickness (t{sub Pt}?=?2.5?nm), the exchange bias between Co and IrMn layers was changed from negative to positive. Therefore, a large enhancement of AF interlayer coupling induced the sign change of exchange bias from negative to positive and resulted in a drastic change of switching behavior in a magnetization reversal. Both extraordinary Hall-effect and magnetoresistance were measured to verify the exchange bias direction and spin configurations upon magnetization reversal.

  7. The a-WO{sub 3}/a-IrO{sub 2} electrochromic system

    SciTech Connect (OSTI)

    Cogan, S.F.; Rauh, R.D. [EIC Labs., Inc., Norwood, MA (United States)

    1990-12-31T23:59:59.000Z

    This article reviews the electrochemistry and optical switching performance of variable transmittance electrochromic devices based on the a-WO{sub 3}/a-IrO{sub 2} (a = amorphous) combination of electrochromic materials. The review concentrates on past research at EIC Laboratories on a-WO{sub 3}/a-IrO{sub 2} devices containing polymeric proton (H{sup +}) conductors with an ancillary discussion of devices using c-K{sub x}WO{sub 3+(x/2)} and the mixed oxide a-Mo{sub x}W{sub 1{minus}x}O{sub 3} as the primary electrochromic material. Approximately one half of the data presented has not been published previously, with the remaining data taken from articles in earlier SPIE volumes and the journal Solar Energy Materials. In recent years, there has been considerable interest in the development of electrochromic devices for control of solar throughput in building windows and for automotive applications. This review is concerned with complementary electrochromic windows based on cathodically coloring WO{sub 3} in combination with anodically coloring IrO{sub 2}. In the complementary configuration, both electrochromic materials participate in the coloration process, enhancing the efficiency of optical modulation while providing intrinsic charge-balance.

  8. Final technical report. In-situ FT-IR monitoring of a black liquor recovery boiler

    SciTech Connect (OSTI)

    James Markham; Joseph Cosgrove; David Marran; Jorge Neira; Chad Nelson; Peter Solomon

    1999-05-31T23:59:59.000Z

    This project developed and tested advanced Fourier transform infrared (FT-IR) instruments for process monitoring of black liquor recovery boilers. The state-of-the-art FT-IR instruments successfully operated in the harsh environment of a black liquor recovery boiler and provided a wealth of real-time process information. Concentrations of multiple gas species were simultaneously monitored in-situ across the combustion flow of the boiler and extractively at the stack. Sensitivity to changes of particulate fume and carryover levels in the process flow were also demonstrated. Boiler set-up and operation is a complex balance of conditions that influence the chemical and physical processes in the combustion flow. Operating parameters include black liquor flow rate, liquor temperature, nozzle pressure, primary air, secondary air, tertiary air, boiler excess oxygen and others. The in-process information provided by the FT-IR monitors can be used as a boiler control tool since species indicative of combustion efficiency (carbon monoxide, methane) and pollutant emissions (sulfur dioxide, hydrochloric acid and fume) were monitored in real-time and observed to fluctuate as operating conditions were varied. A high priority need of the U.S. industrial boiler market is improved measurement and control technology. The sensor technology demonstrated in this project is applicable to the need of industry.

  9. The performance analysis of linux networking - packet receiving

    SciTech Connect (OSTI)

    Wu, Wenji; Crawford, Matt; Bowden, Mark; /Fermilab; ,

    2006-11-01T23:59:59.000Z

    The computing models for High-Energy Physics experiments are becoming ever more globally distributed and grid-based, both for technical reasons (e.g., to place computational and data resources near each other and the demand) and for strategic reasons (e.g., to leverage equipment investments). To support such computing models, the network and end systems, computing and storage, face unprecedented challenges. One of the biggest challenges is to transfer scientific data sets--now in the multi-petabyte (10{sup 15} bytes) range and expected to grow to exabytes within a decade--reliably and efficiently among facilities and computation centers scattered around the world. Both the network and end systems should be able to provide the capabilities to support high bandwidth, sustained, end-to-end data transmission. Recent trends in technology are showing that although the raw transmission speeds used in networks are increasing rapidly, the rate of advancement of microprocessor technology has slowed down. Therefore, network protocol-processing overheads have risen sharply in comparison with the time spent in packet transmission, resulting in degraded throughput for networked applications. More and more, it is the network end system, instead of the network, that is responsible for degraded performance of network applications. In this paper, the Linux system's packet receive process is studied from NIC to application. We develop a mathematical model to characterize the Linux packet receiving process. Key factors that affect Linux systems network performance are analyzed.

  10. TUITION REFUND APPEAL Required actions

    E-Print Network [OSTI]

    Amin, S. Massoud

    -sponsored Student Health Benefit Plan and/or receive services at Boynton Health Service, you may lose your coverage and become liable for all services paid by the Plan and/or all Boynton Health Service charges retroactive to this Tuition Refund Appeal. Consult the Disability Services Office (612-626-1333 or 180 McNamara Alumni Center

  11. Software Quality Assurance Subcommittee : Guidelines for Requirements...

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

    Software Quality Assurance Subcommittee : Guidelines for Requirements Management Software Quality Assurance Subcommittee : Guidelines for Requirements Management Requirements...

  12. Scanning mid-IR-laser microscopy: an efficient tool for materials studies in silicon-based photonics and photovoltaics

    E-Print Network [OSTI]

    Astafiev, O V; Yuryev, V A; 10.1016/S0022-0248(99)00711-3

    2011-01-01T23:59:59.000Z

    A method of scanning mid-IR-laser microscopy has recently been proposed for the investigation of large-scale electrically and recombination-active defects in semiconductors and non-destructive inspection of semiconductor materials and structures in the industries of microelectronics and photovoltaics. The basis for this development was laid with a wide cycle of investigations on low-angle mid-IR-light scattering in semiconductors. The essence of the technical idea was to apply the dark-field method for spatial filtering of the scattered light in the scanning mid-IR-laser microscope together with the local photoexcitation of excess carriers within a small domain in a studied sample, thus forming an artificial source of scattering of the probe IR light for the recombination contrast imaging of defects. The current paper presents three contrasting examples of application of the above technique for defect visualization in silicon-based materials designed for photovoltaics and photonics which demonstrate that this...

  13. PECULIAR OPTICAL AND IR BEHAVIOUR IN TYPE I SUPERNOVAE, AND THE ORIGIN OF THE 1.2 ABSORPTION

    E-Print Network [OSTI]

    Graham, J.R.

    2011-01-01T23:59:59.000Z

    Wheeler, le. , 1984. In "Supernovae as distance indicators",lR. , 1985. In "Dust in supernovae and supernova remnants",and IR behaviour in type I supernovae, and the origin of the

  14. Waste receiving and processing plant control system; system design description

    SciTech Connect (OSTI)

    LANE, M.P.

    1999-02-24T23:59:59.000Z

    The Plant Control System (PCS) is a heterogeneous computer system composed of numerous sub-systems. The PCS represents every major computer system that is used to support operation of the Waste Receiving and Processing (WRAP) facility. This document, the System Design Description (PCS SDD), includes several chapters and appendices. Each chapter is devoted to a separate PCS sub-system. Typically, each chapter includes an overview description of the system, a list of associated documents related to operation of that system, and a detailed description of relevant system features. Each appendice provides configuration information for selected PCS sub-systems. The appendices are designed as separate sections to assist in maintaining this document due to frequent changes in system configurations. This document is intended to serve as the primary reference for configuration of PCS computer systems. The use of this document is further described in the WRAP System Configuration Management Plan, WMH-350, Section 4.1.

  15. Carbon Characterization Laboratory Readiness to Receive Irradiated Graphite Samples

    SciTech Connect (OSTI)

    Karen A. Moore

    2011-05-01T23:59:59.000Z

    The Carbon Characterization Laboratory (CCL) is located in Labs C19 and C20 of the Idaho National Laboratory Research Center. The CCL was established under the Next Generation Nuclear Plant Project to support graphite and ceramic composite research and development activities. The research conducted in this laboratory will support the Advanced Graphite Creep experimentsa major series of material irradiation experiments within the Next Generation Nuclear Plant Graphite program. The CCL is designed to characterize and test low activated irradiated materials such as high purity graphite, carbon-carbon composites, silicon-carbide composite, and ceramic materials. The laboratory is fully capable of characterizing material properties for both irradiated and nonirradiated materials. Major infrastructural modifications were undertaken to support this new radiological facility at Idaho National Laboratory. Facility modifications are complete, equipment has been installed, radiological controls and operating procedures have been established and work management documents have been created to place the CCL in readiness to receive irradiated graphite samples.

  16. Managing System of Systems Requirements with a Requirements Screening Group

    SciTech Connect (OSTI)

    Ronald R. Barden

    2012-07-01T23:59:59.000Z

    Figuring out an effective and efficient way to manage not only your Requirements Baseline, but also the development of all your individual requirements during a Programs/Projects Conceptual and Development Life Cycle Stages can be both daunting and difficult. This is especially so when you are dealing with a complex and large System of Systems (SoS) Program with potentially thousands and thousands of Top Level Requirements as well as an equal number of lower level System, Subsystem and Configuration Item requirements that need to be managed. This task is made even more overwhelming when you have to add in integration with multiple requirements development teams (e.g., Integrated Product Development Teams (IPTs)) and/or numerous System/Subsystem Design Teams. One solution for tackling this difficult activity on a recent large System of Systems Program was to develop and make use of a Requirements Screening Group (RSG). This group is essentially a Team made up of co-chairs from the various Stakeholders with an interest in the Program of record that are enabled and accountable for Requirements Development on the Program/Project. The RSG co-chairs, often with the help of individual support team, work together as a Program Board to monitor, make decisions on, and provide guidance on all Requirements Development activities during the Conceptual and Development Life Cycle Stages of a Program/Project. In addition, the RSG can establish and maintain the Requirements Baseline, monitor and enforce requirements traceability across the entire Program, and work with other elements of the Program/Project to ensure integration and coordination.

  17. Frying Doughnuts: What can the reprocessing of X-rays to IR tell us about the AGN environment?

    E-Print Network [OSTI]

    B. McKernan; K. E. S. Ford; N. Chang; C. S. Reynolds

    2008-12-04T23:59:59.000Z

    Active galactic nuclei (AGN) produce vast amounts of high energy radiation deep in their central engines. X-rays either escape the AGN or are absorbed and re-emitted mostly as IR. By studying the dispersion in the ratio of observed mid-IR luminosity to observed 2-10keV X-ray luminosity (R_{ir/x}) in AGN we can investigate the reprocessing material (possibly a torus or donut of dust) in the AGN central engine, independent of model assumptions. We studied the ratio of observed mid-IR and 2-10keV X-ray luminosities in a heterogeneous sample of 245 AGN from the literature. We found that when we removed AGN with prominent jets, ~90% of Type I AGN lay within a very tight dispersion in luminosity ratio (1cloud cover, turbulent disk, opening angle of absorbing structures such as dusty tori) must span a very narrow range of parameters. We also found that the far-IR(100um) to mid-IR (12um) observed luminosity ratio is an effective descriminator between heavily obscured AGN and relatively unobscured AGN.

  18. Fusion Energy Sciences Network Requirements

    E-Print Network [OSTI]

    Dart, Eli

    2014-01-01T23:59:59.000Z

    Division, and the Office of Fusion Energy Sciences. This isFusion Energy Sciences NetworkRequirements Office of Fusion Energy Sciences Energy

  19. C2D Spitzer-IRS spectra of disks around T Tauri stars: I. Silicate emission and grain growth

    E-Print Network [OSTI]

    J. E. Kessler-Silacci; J. -C. Augereau; C. P. Dullemond; V. Geers; F. Lahuis; N. J. Evans II; E. F. van Dishoeck; G. A. Blake; A. C. A. Boogert; J. Brown; J. K. Jorgensen; C. Knez; K. M. Pontoppidan

    2005-11-02T23:59:59.000Z

    Infrared ~5--35 um spectra for 40 solar-mass T Tauri stars and 7 intermediate-mass Herbig Ae stars with circumstellar disks were obtained using the Spitzer Space Telescope as part of the c2d IRS survey. This work complements prior spectroscopic studies of silicate infrared emission from disks, which were focused on intermediate-mass stars, with observations of solar-mass stars limited primarily to the 10 um region. The observed 10 and 20 um silicate feature strengths/shapes are consistent with source-to-source variations in grain size. A large fraction of the features are weak and flat, consistent with um-sized grains indicating fast grain growth (from 0.1--1.0 um in radius). In addition, approximately half of the T Tauri star spectra show crystalline silicate features near 28 and 33 um indicating significant processing when compared to interstellar grains. A few sources show large 10-to-20 um ratios and require even larger grains emitting at 20 um than at 10 um. This size difference may arise from the difference in the depth into the disk probed by the two silicate emission bands in disks where dust settling has occurred. The 10 um feature strength vs. shape trend is not correlated with age or Halpha equivalent width, suggesting that some amount of turbulent mixing and regeneration of small grains is occurring. The strength vs. shape trend is related to spectral type, however, with M stars showing significantly flatter 10 um features (larger grain sizes) than A/B stars. The connection between spectral type and grain size is interpreted in terms of the variation in the silicate emission radius as a function of stellar luminosity, but could also be indicative of other spectral-type dependent factors (e.g, X-rays, UV radiation, stellar/disk winds, etc.).

  20. WATER ICE IN HIGH MASS-LOSS RATE OH/IR STARS

    SciTech Connect (OSTI)

    Suh, Kyung-Won; Kwon, Young-Joo, E-mail: kwsuh@chungbuk.ac.kr [Department of Astronomy and Space Science, Chungbuk National University, Cheongju-City 361-763 (Korea, Republic of)] [Department of Astronomy and Space Science, Chungbuk National University, Cheongju-City 361-763 (Korea, Republic of)

    2013-01-10T23:59:59.000Z

    We investigate water-ice features in spectral energy distributions (SEDs) of high mass-loss rate OH/IR stars. We use a radiative transfer code which can consider multiple components of dust shells to make model calculations for various dust species including water ice in the OH/IR stars. We find that the model SEDs are sensitively dependent on the location of the water-ice dust shell. For two sample stars (OH 127.8+0.0 and OH 26.5+0.6), we compare the detailed model results with the infrared observational data including the spectral data from the Infrared Space Observatory (ISO). For the two sample stars, we reproduce the crystalline water-ice features (absorption at 3.1 {mu}m and 11.5 {mu}m; emission at 44 and 62 {mu}m) observed by ISO using a separate component of the water-ice dust shell that condensed at about 84-87 K (r {approx} 1500-1800 AU) as well as the silicate dust shell that condensed at about 1000 K (r {approx} 19-25 AU). For a sample of 1533 OH/IR stars, we present infrared two-color diagrams (2CDs) using the Infrared Astronomical Satellite and AKARI data compared with theoretical model results. We find that the theoretical models clearly show the effects of the crystalline water-ice features (absorption at 11.5 {mu}m and emission at 62 {mu}m) on the 2CDs.

  1. Integrating Interactive Visualizations in the Search Process of Digital Libraries and IR Systems

    E-Print Network [OSTI]

    Hienert, Daniel; Schaer, Philipp; Mayr, Philipp

    2012-01-01T23:59:59.000Z

    Interactive visualizations for exploring and retrieval have not yet become an integral part of digital libraries and information retrieval systems. We have integrated a set of interactive graphics in a real world social science digital library. These visualizations support the exploration of search queries, results and authors, can filter search results, show trends in the database and can support the creation of new search queries. The use of weighted brushing supports the identification of related metadata for search facets. We discuss some use cases of the combination of IR systems and interactive graphics. In a user study we verify that users can gain insights from statistical graphics intuitively and can adopt interaction techniques.

  2. Bismuth-doped optical fibres: A new breakthrough in near-IR lasing media

    SciTech Connect (OSTI)

    Dianov, Evgenii M [Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)

    2012-09-30T23:59:59.000Z

    Recent results demonstrate that bismuth-doped optical fibres have considerable potential as near-IR active lasing media. This paper examines bismuth-doped fibres intended for the fabrication of fibre lasers and optical amplifiers and reviews recent results on the luminescence properties of various types of bismuth-doped fibres and the performance of bismuth-doped fibre lasers and optical amplifiers for the spectral range 1150 - 1550 nm. Problems are discussed that have yet to be solved in order to improve the efficiency of the bismuth lasers and optical amplifiers. (optical fibres, lasers and amplifiers. properties and applications)

  3. Phase-matched generation of coherent soft and hard X-rays using IR lasers

    DOE Patents [OSTI]

    Popmintchev, Tenio V.; Chen, Ming-Chang; Bahabad, Alon; Murnane, Margaret M.; Kapteyn, Henry C.

    2013-06-11T23:59:59.000Z

    Phase-matched high-order harmonic generation of soft and hard X-rays is accomplished using infrared driving lasers in a high-pressure non-linear medium. The pressure of the non-linear medium is increased to multi-atmospheres and a mid-IR (or higher) laser device provides the driving pulse. Based on this scaling, also a general method for global optimization of the flux of phase-matched high-order harmonic generation at a desired wavelength is designed.

  4. Macroscopic screening of 1/r potentials from UV/IR-mixing

    E-Print Network [OSTI]

    Helling, Robert C

    2008-01-01T23:59:59.000Z

    We compute the static potential in a non-commutative theory including a term due to UV/IR-mixing. As a result, the potential decays exponentially fast with distance rather than like a power law Coulomb type potential due to the exchange of massless particles. This shows that when quantum effects are taken into account the introduction of non-commutativity not only modifies physics at short distances but has dramatic macroscopic consequences as well. As a result, we give a lower bound on the scale of non-commutativity (if present at all) to be compatible with observations.

  5. UV and IR laser ablation for inductively coupled plasma mass spectrometry

    SciTech Connect (OSTI)

    Smith, M.R.; Koppenaal, D.W.; Farmer, O.T.

    1993-06-01T23:59:59.000Z

    Laser ablation particle plume compositions are characterized using inductively coupled plasma mass spectrometry (ICP/MS). This study evaluates the mass response characteristics peculiar to ICP/MS detection as a function of laser fluence and frequency. Evaluation of the ICP/MS mass response allows deductions to be made concerning how representative the laser ablation produced particle plume composition is relative to the targeted sample. Using a black glass standard, elemental fractionation was observed, primarily for alkalis and other volatile elements. The extent of elemental fractionation between the target sample and the sampled plume varied significantly as a function of laser fluences and IR and UV laser frequency.

  6. An Optical Offgas Sensor Network Incorporating a HG Cavity Ringdown Spectrometer and IR Diode Lasers

    SciTech Connect (OSTI)

    George P. Miller

    2007-12-30T23:59:59.000Z

    A multi-element cavity ringdown system was evaluated with the objective of developing an intelligent sensor network to be incorporated into the control systems for advanced coal combustion facilities. Using a combination of a YAG-pumped dye laser and a tunable NIR/IR laser a dual cavity was constructed and a labview program was developed to provide multi-channel, real-time data to permit the real-time monitoring of typical exhaust emission gases, (for example: CO{sub 2}, SO{sub 2}, and mercury) of concern to the next generation of coal-powered facilities.

  7. Observations of the 6 Centimeter Lines of OH in Evolved (OH/IR) Stars

    E-Print Network [OSTI]

    Vincent L. Fish; Laura K. Zschaechner; Lornt O. Sjouwerman; Ylva M. Pihlstrm; Mark J. Claussen

    2006-10-24T23:59:59.000Z

    Recent observational and theoretical advances have called into question traditional OH maser pumping models in evolved (OH/IR) stars. The detection of excited-state OH lines would provide additional constraints to discriminate amongst these theoretical models. In this Letter, we report on VLA observations of the 4750 MHz and 4765 MHz lines of OH toward 45 sources, mostly evolved stars. We detect 4765 MHz emission in the star forming regions Mon R2 and LDN 1084, but we do not detect excited-state emission in any evolved stars. The flux density and velocity of the 4765 MHz detection in Mon R2 suggests that a new flaring event has begun.

  8. Requirements

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection Technical s o Freiberge s 3 % A PB 2 7 7 2 x>16Forms of1, 2

  9. Thesis and Dissertation Required Elements

    E-Print Network [OSTI]

    Texas at Arlington, University of

    /dissertation documents have a uniform appearance and are suitable for archiving. The requirements follow the guidelines to the following guidelines are acceptable. All margins must be at least 1.25" and may not be more than 1/dissertation should be double-spaced. #12;Thesis and Dissertation Required Elements 2012 version Paragraph Indentation

  10. Calibration Requirements and Procedures for

    E-Print Network [OSTI]

    Tuceryan, Mihran

    Calibration Requirements and Procedures for Augmented Reality Mihran Tuceryan Douglas S. Greer Ross Graphics, Sept 1995) Calibration Requirements and Procedures for Augmented Reality Mihran Tuceryan Douglas of calibration procedures are necessary so that the location and parameters of each of the system components

  11. MINIMUM SECURITY REQUIREMENTS FOR FEDERAL

    E-Print Network [OSTI]

    March 2006 MINIMUM SECURITY REQUIREMENTS FOR FEDERAL INFORMATION AND INFORMATION SYSTEMS: FEDERAL INFORMATION PROCESSING STANDARD (FIPS) 200 APPROVED BY THE SECRETARY OF COMMERCE MINIMUM SECURITY REQUIREMENTS BY THE SECRETARY OF COMMERCE Shirley Radack, EditorShirley Radack, Editor Computer Security Division

  12. Humidity requirements in WSCF Laboratories

    SciTech Connect (OSTI)

    Evans, R.A.

    1994-10-01T23:59:59.000Z

    The purpose of this paper is to develop and document a position on Relative Humidity (RH) requirements in the WSCF Laboratories. A current survey of equipment vendors for Organic, Inorganic and Radiochemical laboratories indicate that 25% - 80% relative humidity may meet the environmental requirements for safe operation and protection of all the laboratory equipment.

  13. Bluetooth/WLAN receiver design methodology and IC implementations

    E-Print Network [OSTI]

    Emira, Ahmed Ahmed Eladawy

    2004-09-30T23:59:59.000Z

    of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved as to style and content by: Edgar Snchez-Sinencio (Chair of Committee) Jos Silva-Martnez (Member) Aydin Karsilayan (Member) Scott Miller (Member... Emira, B.Eng., Cairo University, Egypt; M.Eng., Cairo University, Egypt Chair of Advisory Committee: Dr. Edgar Snchez-Sinencio Emerging technologies such as Bluetooth and 802.11b (Wi-Fi) have fuelled the growth of the short-range communication...

  14. Design guidelines for SAR digital receiver/exciter boards.

    SciTech Connect (OSTI)

    Dudley, Peter A.

    2009-08-01T23:59:59.000Z

    High resolution radar systems generally require combining fast analog to digital converters and digital to analog converters with very high performance digital signal processing logic. These mixed analog and digital printed circuit boards present special challenges with respect to electromagnetic interference. This document first describes the mechanisms of interference on such boards then follows up with a discussion of prevention techniques and finally provides a checklist for designers to help avoid common mistakes.

  15. Sandia Energy - JBEI Research Receives Strong Industry Interest in DOE

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand RequirementsCoatingsUltra-High-VoltagePower

  16. NERSC User James Drake Receives 2010 APS Maxwell Prize for Plasma...

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

    User James Drake Receives 2010 APS Maxwell Prize for Plasma Physics NERSC User James Drake Receives 2010 APS Maxwell Prize for Plasma Physics January 31, 2011 drake10.jpg Long-time...

  17. Design and validation of an air window for a molten salt solar thermal receiver

    E-Print Network [OSTI]

    Paxson, Adam Taylor

    2009-01-01T23:59:59.000Z

    This thesis contributes to the development of Concentrating Solar Power (CSP) receivers and focuses on the design of an efficient aperture. An air window is proposed for use as the aperture of a CSP molten salt receiver ...

  18. A NEW SOLAR THERMAL RECEIVER UTILIZING A SMALL PARTICLE HEAT EXCHANGER

    E-Print Network [OSTI]

    Hunt, Arlon J.

    2011-01-01T23:59:59.000Z

    Report LBL 8520. ) A NEW SOLAR THERMAL RECEIVER UTILIZING Aenergy. A new type of solar thermal receiver based on thisThe success of the solar thermal electric power program

  19. Solar and Energy Loan Fund Receives $300,000 Community Reinvestment...

    Energy Savers [EERE]

    Solar and Energy Loan Fund Receives 300,000 Community Reinvestment Act Loan to Invest in Home Energy Upgrades Solar and Energy Loan Fund Receives 300,000 Community Reinvestment...

  20. High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical...

    Office of Environmental Management (EM)

    High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical CO2 Recompression Cycle - FY13 Q1 High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical CO2...

  1. Fact #856 January 19, 2015 Plug-in and Hybrid Cars Receive High...

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

    6 January 19, 2015 Plug-in and Hybrid Cars Receive High Scores for Owner Satisfaction Fact 856 January 19, 2015 Plug-in and Hybrid Cars Receive High Scores for Owner Satisfaction...

  2. Waste receiving and processing facility module 1, detailed design report

    SciTech Connect (OSTI)

    Not Available

    1993-10-01T23:59:59.000Z

    WRAP 1 baseline documents which guided the technical development of the Title design included: (a) A/E Statement of Work (SOW) Revision 4C: This DOE-RL contractual document specified the workscope, deliverables, schedule, method of performance and reference criteria for the Title design preparation. (b) Functional Design Criteria (FDC) Revision 1: This DOE-RL technical criteria document specified the overall operational criteria for the facility. The document was a Revision 0 at the beginning of the design and advanced to Revision 1 during the tenure of the Title design. (c) Supplemental Design Requirements Document (SDRD) Revision 3: This baseline criteria document prepared by WHC for DOE-RL augments the FDC by providing further definition of the process, operational safety, and facility requirements to the A/E for guidance in preparing the design. The document was at a very preliminary stage at the onset of Title design and was revised in concert with the results of the engineering studies that were performed to resolve the numerous technical issues that the project faced when Title I was initiated, as well as, by requirements established during the course of the Title II design.

  3. Evaluation of PC-ISO for customized, 3D printed, gynecologic 192Ir HDR brachytherapy applicators

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    sliding fit with no internal movement. The catheter insertion into the channel required gentle pressure.

  4. NREL Particle Receiver Will Enable High-Temperature CSP (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-08-01T23:59:59.000Z

    Near-blackbody enclosed particle receiver can support high-temperature thermal energy storage and high-efficiency power cycles.

  5. 3. MATERIAL CERTIFICATIONS REQUIRED. 100% DYE PENETRANT INSPECTION REQUIRED.

    E-Print Network [OSTI]

    McDonald, Kirk

    WELDS SHOULD BE MINIMIZED. NO CODE STAMP REQUIRED. IN ACCORDANCE WITH ASME SECTION IX. 1. WELDING and applicable 1. ALL DIMENSIONS ARE IN INCHES 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M 3. MACHINED

  6. Diversity Performance of a Practical Non-Coherent Detect-and-Forward Receiver

    E-Print Network [OSTI]

    Gaithersburg, Maryland, USA Abstract--We propose a non-coherent receiver for the fixed detect-and-forward relay, and the gap from full diversity is quantified. While the general receiver depends on the source-relay channel of the source-destination channel are known. The receiver is derived using the generalized likelihood ratio test

  7. A Low-Power Correlation Detector For Binary FSK Direct-Conversion Receivers

    E-Print Network [OSTI]

    Arslan, Hüseyin

    A Low-Power Correlation Detector For Binary FSK Direct-Conversion Receivers J. Min, H-C. Liu, A detector, Tone detection, Correlation, Direct-conversion wireless receivers Abstract A multiplierless-suited for low-power direct-conversion receivers used in wireless communications systems employ- ing FSK

  8. Sequence Optimization-based UWB Receiver Jihad Ibrahim, Rekha Menon, and Dr. R.M. Buehrer

    E-Print Network [OSTI]

    Southern California, University of

    Sequence Optimization-based UWB Receiver Jihad Ibrahim, Rekha Menon, and Dr. R.M. Buehrer Sponsored transmit pulse shape Proposed Receiver Transmit Sequence X Channel Receiver Sequence- Correlator Y UWB Objective: Maximize SNR Optimal transmit sequence X solves: H is the channel matrix Optimal X

  9. Efficient MIMO-OFDM Schemes for Future Terrestrial Digital TV with Unequal Received

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    .nasser@insa-rennes.fr Abstract- This article investigates the effect of equal and unequal received powers on the performances- orthogonal schemes: the BLAST scheme, the Linear Dispersion (LD) code and the Golden code, and we compare for modelling the effect of unequal received powers on different receiving antennas. Therefore, we analyze

  10. We schedule your job when we receive this completed request form. You then receive a JOB CONFIRMATION which will include job number, copy due date and job checklist.

    E-Print Network [OSTI]

    Sheridan, Jennifer

    We schedule your job when we receive this completed request form. You then receive a JOB CONFIRMATION which will include job number, copy due date and job checklist. JOB NAME Date Form Submitted pages) Copy to come by due date note due date on Job Confirmation Mini Catalog (12-24 pages) PROVIDE

  11. Sonic IR crack detection of aircraft turbine engine blades with multi-frequency ultrasound excitations

    SciTech Connect (OSTI)

    Zhang, Ding; Han, Xiaoyan [Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202 (United States); Newaz, Golam [Department of Mechanical Engineering, Wayne State University, Detroit, MI 48202 (United States)

    2014-02-18T23:59:59.000Z

    Effectively and accurately detecting cracks or defects in critical engine components, such as turbine engine blades, is very important for aircraft safety. Sonic Infrared (IR) Imaging is such a technology with great potential for these applications. This technology combines ultrasound excitation and IR imaging to identify cracks and flaws in targets. In general, failure of engine components, such as blades, begins with tiny cracks. Since the attenuation of the ultrasound wave propagation in turbine engine blades is small, the efficiency of crack detection in turbine engine blades can be quite high. The authors at Wayne State University have been developing the technology as a reliable tool for the future field use in aircraft engines and engine parts. One part of the development is to use finite element modeling to assist our understanding of effects of different parameters on crack heating while experimentally hard to achieve. The development has been focused with single frequency ultrasound excitation and some results have been presented in a previous conference. We are currently working on multi-frequency excitation models. The study will provide results and insights of the efficiency of different frequency excitation sources to foster the development of the technology for crack detection in aircraft engine components.

  12. "Dust, Ice, and Gas In Time" (DIGIT) Herschel Observations of GSS30-IRS1 in Ophiuchus

    E-Print Network [OSTI]

    Je, Hyerin; Lee, Seokho; Green, Joel D; Evans, Neal J

    2015-01-01T23:59:59.000Z

    As a part of the "Dust, Ice, and Gas In Time" (DIGIT) key program on Herschel, we observed GSS30-IRS1, a Class I protostar located in Ophiuchus (d = 120 pc), with Herschel/Photodetector Array Camera and Spectrometer (PACS). More than 70 lines were detected within a wavelength range from 50 micron to 200 micron, including CO, H2O, OH, and two atomic [O I] lines at 63 and 145 micron. The [C II] line, known as a tracer of externally heated gas by the interstellar radiation field, is also detected at 158 micron. All lines, except [O I] and [C II], are detected only at the central spaxel of 9.4" X 9.4". The [O I] emissions are extended along a NE-SW orientation, and the [C II] line is detected over all spaxels, indicative of external PDR. The total [C II] intensity around GSS30 reveals that the far-ultraviolet radiation field is in the range of 3 to 20 G0, where G0 is in units of the Habing Field, 1.6 X 10^{-3} erg cm^{-2} s^{-1}. This enhanced external radiation field heats the envelope of GSS30-IRS1, causing the...

  13. Study of Plasma Interaction with Titanium Coated Ferritic Steel in IR-T1 Tokamak

    SciTech Connect (OSTI)

    Ghoranneviss, M.; Talebitaher, A.; Arvin, R.; Mohammadi, S.; Nikmohamadi, A.; Milani, M.; Salem, M. K.; Sari, A. H.; Yousefi, M. R.; Shokouhi, A. [Plasma Physics Research Center, Islamic Azad University, Tehran (Iran, Islamic Republic of); Khorshid, P. [Plasma Physics Research Center, Islamic Azad University, Tehran (Iran, Islamic Republic of); Department of Physics, Islamic Azad University, Mashhad (Iran, Islamic Republic of); Saboohi, S. [Department of Physics, Islamic Azad University, Tehran Central Campus (Iran, Islamic Republic of)

    2008-04-07T23:59:59.000Z

    Studies of plasma interaction with titanium coated ferritic steel is performed on IR-T1 tokamak. Titanium coating is one of the candidates for the plasma facing materials in a tokomak. Titaniumization is carried out by a sputtering method. Some of the samples were baked (3 hours at 460 deg. C) before sputtering. Atomic Force Microscopy (AFM) analyses before and after discharge in r/a = l .04 carried out. The samples (with distinctive titanium layers) were placed at different depths inside the vacuum vessel of the IR-T1 tokamak in the SOL region. A comparison of the titanium coated steel with bare ferritic steel exposed to plasma tokamak and glow discharges is made in this research. Depth of impurity penetration and retention, and the surface roughness are measured by using surface analysis methods. Rutherford backscattering method is used to measure the content of nitrogen, oxygen and titanium, before and after discharges. The result is shown a change in roughness with respect to position of samples.

  14. Spatially Resolved Spitzer-IRS Spectral Maps of the Superwind in M82

    E-Print Network [OSTI]

    Beiro, P; Lehnert, M D; Guillard, P; Heckman, T; Draine, B; Hollenbach, D; Walter, F; Sheth, K; Smith, J D; Shopbell, P; Boulanger, F; Surace, J; Hoopes, C; Engelbracht, C

    2015-01-01T23:59:59.000Z

    We have mapped the superwind/halo region of the nearby starburst galaxy M82 in the mid-infrared with $Spitzer-IRS$. The spectral regions covered include the H$_2 S(1)-S(3)$, [NeII], [NeIII] emission lines and PAH features. We estimate the total warm H$_2$ mass and the kinetic energy of the outflowing warm molecular gas to be between $M_{warm}\\sim5-17\\times10^6$ M$_{\\odot}$ and $E_{K}\\sim6-20\\times10^{53}$ erg. Using the ratios of the 6.2, 7.7 and 11.3 micron PAH features in the IRS spectra, we are able to estimate the average size and ionization state of the small grains in the superwind. There are large variations in the PAH flux ratios throughout the outflow. The 11.3/7.7 and the 6.2/7.7 PAH ratios both vary by more than a factor of five across the wind region. The Northern part of the wind has a significant population of PAH's with smaller 6.2/7.7 ratios than either the starburst disk or the Southern wind, indicating that on average, PAH emitters are larger and more ionized. The warm molecular gas to PAH f...

  15. Spent nuclear fuel characterization for a bounding reference assembly for the receiving basin for off-site fuel

    SciTech Connect (OSTI)

    Kahook, S.D.; Garrett, R.L.; Canas, L.R.; Beckum, M.J. [Westinghouse Savannah River, Aiken, SC (United States)

    1995-07-01T23:59:59.000Z

    The Basis for Interim Operation (BIO) for the Receiving Basin for Off-Site Fuel (RBOF) facility at the Department of Energy (DOE) Savannah River Site (SRS) nuclear materials production complex, developed in accordance with draft DOE-STD-0019-93, required a hazard categorization for the safety analysis section as outlined in DOE-STD-1027-92. The RBOF facility was thus established as a Category-2 facility (having potential for significant on-site consequences from a radiological release) as defined in DOE 5480.23. Given the wide diversity of spent nuclear fuel stored in the RBOF facility, which made a detailed assessment of the total nuclear inventory virtually impossible, the categorization required a conservative calculation based on the concept of a hypothetical, bounding reference fuel assembly integrated over the total capacity of the facility. This scheme not only was simple but also precluded a potential delay in the completion of the BIO.

  16. Meeting Federal Energy Security Requirements

    Broader source: Energy.gov [DOE]

    Presentationgiven at at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meetingdiscusses the opportunity to increase the scope of federal-utility partnerships for meeting energy security requirements.

  17. Fusion technology status and requirements

    SciTech Connect (OSTI)

    Thomassen, K.I.

    1982-01-26T23:59:59.000Z

    This paper summarizes the status of fusion technology and discusses the requirements to be met in order to build a demonstration fusion plant. Strategies and programmatic considerations in pursuing engineering feasibility are also outlined.

  18. POSTGRADUATE PROGRAMMES Procedures and Requirements

    E-Print Network [OSTI]

    Jagannatham, Aditya K.

    Engineering, Materials Science, Mechanical Engineering, Nuclear Engineering and Technology and Photonics Statistics), Mechanical Engineering, Nuclear Engineering and Technology, Photonics Science and Engineering(1) POSTGRADUATE PROGRAMMES Procedures and Requirements INDIAN INSTITUTE OF TECHNOLOGY KANPUR

  19. Ternary lithium stannides Li{sub x}T{sub 3}Sn{sub 7-x} (T=Rh, Ir)

    SciTech Connect (OSTI)

    Sreeraj, Puravankara [Institut fuer Anorganische und Analytische Chemie, NRW Graduate School of Chemistry, and Sonderforschungsbereich 458, Universitaet Muenster, Corrensstrasse 30, 48149 Muenster (Germany); Kurowski, Daniel [Institut fuer Anorganische und Analytische Chemie, NRW Graduate School of Chemistry, and Sonderforschungsbereich 458, Universitaet Muenster, Corrensstrasse 30, 48149 Muenster (Germany); Hoffmann, Rolf-Dieter [Institut fuer Anorganische und Analytische Chemie, NRW Graduate School of Chemistry, and Sonderforschungsbereich 458, Universitaet Muenster, Corrensstrasse 30, 48149 Muenster (Germany); Wu Zhiyun [Institut fuer Anorganische und Analytische Chemie, NRW Graduate School of Chemistry, and Sonderforschungsbereich 458, Universitaet Muenster, Corrensstrasse 30, 48149 Muenster (Germany); Poettgen, Rainer [Institut fuer Anorganische und Analytische Chemie, NRW Graduate School of Chemistry, and Sonderforschungsbereich 458, Universitaet Muenster, Corrensstrasse 30, 48149 Muenster (Germany)]. E-mail: pottgen@uni-muenster.de

    2005-11-15T23:59:59.000Z

    The ternary stannides Li{sub x}Rh{sub 3}Sn{sub 7-x} (x=0.45, 0.64, 0.80) and Li{sub x}Ir{sub 3}Sn{sub 7-x} (x=0.62 and 0.66) were synthesized from the elements in sealed tantalum tubes in a water-cooled sample chamber of an induction furnace. The samples were characterized by X-ray diffraction on powders and single crystals. The stannides adopt the cubic Ir{sub 3}Ge{sub 7}-type structure (space group Im3-bar m, Z=4). In this structure type the tin atoms occupy the Wyckoff positions 12d and 16f and form two interpenetrating frameworks consisting of cubes and square antiprisms. The rhodium and iridium atoms center the square antiprisms and are arranged in pairs. With increasing lithium substitution the lattice parameter of Ir{sub 3}Sn{sub 7} (936.7) decreases via 932.2pm (x=0.62) to 931.2pm (x=0.66), while the Ir-Ir distance remains almost the same (290pm). A similar trend is observed for the rhodium compounds. The lithium atoms substitute Sn on both framework sites. However, the 16f site shows a substantially larger preference for Li occupation. This is in contrast to the isotypic magnesium based compounds.

  20. Understanding the two-dimensional ionization structure in luminous infrared galaxies. A near-IR integral field spectroscopy perspective

    E-Print Network [OSTI]

    Colina, Luis; Arribas, Santiago; Riffel, Rogerio; Riffel, Rogemar A; Rodriguez-Ardila, Alberto; Pastoriza, Miriani; Storchi-Bergmann, Thaisa; Alonso-Herrero, Almudena; Sales, Dinalva

    2015-01-01T23:59:59.000Z

    We investigate the 2D excitation structure of the ISM in a sample of LIRGs and Seyferts using near-IR IFS. This study extends to the near-IR the well-known optical and mid-IR emission line diagnostics used to classify activity in galaxies. Based on the spatially resolved spectroscopy of prototypes, we identify in the [FeII]1.64/Br$\\gamma$ - H_2 1-0S(1)/Br$\\gamma$ plane regions dominated by the different heating sources, i.e. AGNs, young MS massive stars, and evolved stars i.e. supernovae. The ISM in LIRGs occupy a wide region in the near-IR diagnostic plane from -0.6 to +1.5 and from -1.2 to +0.8 (in log units) for the [FeII]/Br$\\gamma$ and H_2/Br$\\gamma$ line ratios, respectively. The corresponding median(mode) ratios are +0.18(0.16) and +0.02(-0.04). Seyferts show on average larger values by factors ~2.5 and ~1.4 for the [FeII]/Br$\\gamma$ and H_2/Br$\\gamma$ ratios, respectively. New areas and relations in the near-IR diagnostic plane are defined for the compact, high surface brightness regions dominated by ...

  1. HTS wire requirements for SMES

    SciTech Connect (OSTI)

    Schoenung, S.; Schafer, W.J.

    1994-07-29T23:59:59.000Z

    This presentation/paper gives an overview of the Sandia National Lab`s sponsorship of W.J. Schafer Associates, Inc. to examine the following topics: the refrigeration savings possible by using high temperature superconductors (HTS) in Superconducting Magnetic Energy Storage (SMES), the impact of duty cycle on refrigeration requirements, and outline the required HTS wire performance. Included are specifications for SMES applications, advantages, cost components, assumed conductor performance parameters, and the effects of duty cycle and conductor twist pitch.

  2. Requirements for GNEP Transmutation Fuels

    SciTech Connect (OSTI)

    D. C. Crawford; M. K. Meyer; S. L. Hayes

    2007-03-01T23:59:59.000Z

    The purpose of this document is to provide a baseline set of requirements to guide fuel fabrication development and irradiation testing performed as part of the AFCRD Transmutation Fuel Development Program. This document can be considered a supplement to the GNEP TRU Fuel Development and Qualification Plan, and will be revised as necessary to maintain a documented set of fuel testing objectives and requirements consistent with programmatic decisions and advances in technical knowledge.

  3. Hydrogen Storage Materials Requirements (Text Version) | Department...

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

    Requirements (Text Version) Hydrogen Storage Materials Requirements (Text Version) Below is the text version of the webinar titled "Hydrogen Storage Materials Requirements,"...

  4. Tri-Lateral Noor al Salaam High Concentration Solar Central Receiver Program

    SciTech Connect (OSTI)

    Blackmon, James B

    2008-03-31T23:59:59.000Z

    This report documents the efforts conducted primarily under the Noor al Salaam (Light of Peace) program under DOE GRANT NUMBER DE-FC36-02GO12030, together with relevant technical results from a closely related technology development effort, the U.S./Israel Science and Technology Foundation (USISTF) High Concentration Solar Central Receiver program. These efforts involved preliminary design, development, and test of selected prototype power production subsystems and documentation of an initial version of the system definition for a high concentration solar hybrid/gas electrical power plant to be built in Zaafarana, Egypt as a first step in planned commercialization. A major part of the planned work was halted in 2007 with an amendment in October 2007 requiring that we complete the technical effort by December 31, 2007 and provide a final report to DOE within the following 90 days. This document summarizes the work conducted. The USISTF program was a 50/50 cost-shared program supported by the Department of Commerce through the U.S./Israel Science and Technology Commission (USISTC). The USISTC was cooperatively developed by President Clinton and the late Prime Minister Rabin of Israel "to encourage technological collaboration" and "support peace in the Middle East through economic development". The program was conducted as a follow-on effort to Israel's Magnet/CONSOLAR Program, which was an advanced development effort to design, fabricate, and test a solar central receiver and secondary optics for a "beam down" central receiver concept. The status of these hardware development programs is reviewed, since they form the basis for the Noor al Salaam program. Descriptions are provided of the integrated system and the major subsystems, including the heliostat, the high temperature air receiver, the power conversion unit, tower and tower reflector, compound parabolic concentrator, and the master control system. One objective of the USISTF program was to conduct marketing research, identify opportunities for use of this technology, and to the extent possible, secure an agreement leading to a pre-commercialization demonstration or prototype plant. This was accomplished with the agreement to conduct the Noor al Salaam program as a tri-lateral project between Egypt, Israel, and the U.S. The tri-lateral project was led by the University of Alabama in Huntsville (UAH); this included the Egyptian New and Renewable Energy Authority and the Israeli USISTC participants. This project, known was Noor al Salaam, was funded by the U.S. Agency for International Development (USAID) through the Department of Energy (DOE). The Egyptian activity was under the auspices of the Egyptian Ministry of Energy and Electricity, New and Renewable Energy Authority (NREA) as part of Egypt's plans for renewable energy development. The objective of the Noor al Salaam project was to develop the conditions necessary to obtain funding and construct and operate an approximately 10 to 20 Megawatt hybrid solar/natural gas demonstration power plant in Zaafarana, Egypt that could serve both as a test bed for advanced solar technology evaluations, and as a forerunner to commercial plant designs. This plant, termed Noor Al Salaam, or Light of Peace, reached the initial phase of system definition before being curtailed, in part by changes in USAID objectives, coupled with various delays that were beyond the scope of the program to resolve. The background of the USISTF technology development and pre-commercialization effort is provided in this report, together with documentation of the technology developments conducted under the Noor al Salaam program. It should be noted that only a relatively small part of the Noor al Salaam funding was expended over the approximately five years for which UAH was prime contractor before the program was ordered closed (Reference 1) so that the remaining funds could be returned to USAID.

  5. Ternary Electrocatalysts for Oxidizing Ethanol to Carbon Dioxide: Making Ir Capable of Splitting C-C bond

    SciTech Connect (OSTI)

    Li, Meng [Brookhaven National Laboratory (BNL); Cullen, David A [ORNL; Sasaki, Kotaro [Brookhaven National Laboratory (BNL); Marinkovic, N. [University of Delaware; More, Karren Leslie [ORNL; Adzic, Radoslav R. [Brookhaven National Laboratory (BNL)

    2013-01-01T23:59:59.000Z

    Splitting the C-C bond is the main obstacle to electroxidation of ethanol (EOR) to CO2. We recently demonstrated that the ternary PtRhSnO2 electrocatalyst can accomplish that reaction at room temperature with Rh having a unique capability to split the C-C bond. In this article we report the finding that Ir can be induced to split the C-C bond as a component of the ternary catalyst. We synthesized, characterized and compared the properties of several ternary electrocatalysts. Carbon-supported nanoparticle (NP) electrocatalysts comprising a SnO2 NP core decorated with multi-metallic nanoislands (MM = PtIr, PtRh, IrRh, PtIrRh) were prepared using a seeded growth approach. An array of characterization techniques were employed to establish the composition and architecture of the synthesized MM /SnO2 NPs, while electrochemical and in situ infrared reflection absorption spectroscopy studies elucidated trends in activity and the nature of the reaction intermediates and products. Both EOR reactivity and selectivity towards CO2 formation of several of these MM /SnO2/C electrocatalysts are significantly higher compared to conventional Pt/C and Pt/SnO2/C catalysts. We demonstrate that the PtIr/SnO2/C catalyst with high Ir content shows outstanding catalytic property with the most negative EOR onset potential and reasonably good selectivity towards ethanol complete oxidation to CO2. PtRh/SnO2/C catalysts with a moderate Rh content exhibit the highest EOR selectivity, as deduced from infrared studies.

  6. ON LINE HOUSING APPLICATION PROCESS SUMMARY Required steps to access online housing application

    E-Print Network [OSTI]

    McConnell, Terry

    ON LINE HOUSING APPLICATION PROCESS SUMMARY Required steps to access online housing application Admission to the University Return Intent to Register & make advance Tuition Payment Make advance housing payment if planning to live on-campus Activate your NetID Receive an e-mail from the Housing Office

  7. A formal software requirements specification method for digital nuclear plant protection systems

    E-Print Network [OSTI]

    A formal software requirements specification method for digital nuclear plant protection systems of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology (KAIST Institute (KAERI), MMIS team, 150, Deokjin-dong, Yusong-gu, Taejon, South Korea Received 18 March 2003

  8. Grantee Performance Required to Release the Hold on Remaining 50% of Obligated Recovery Act Funds

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Weatherization Assistance Program Notice 10-05 deals with performance requirements for program grantees?states and U.S. territories?to receive the remaining 50% of obligated funds under the 2009 American Reinvestment and Recovery Act.

  9. Determining Transition State Geometries in Liquids Using 2D-IR

    SciTech Connect (OSTI)

    Harris, Charles; Cahoon, James F.; Sawyer, Karma R.; Schlegel, Jacob P.; Harris, Charles B.

    2007-12-11T23:59:59.000Z

    Many properties of chemical reactions are determined by the transition state connecting reactant and product, yet it is difficult to directly obtain any information about these short-lived structures in liquids. We show that two-dimensional infrared (2D-IR) spectroscopy can provide direct information about transition states by tracking the transformation of vibrational modes as a molecule crossed a transition state. We successfully monitored a simple chemical reaction, the fluxional rearrangement of Fe(CO)5, in which the exchange of axial and equatorial CO ligands causes an exchange of vibrational energy between the normal modes of the molecule. This energy transfer provides direct evidence regarding the time scale, transition state, and mechanism of the reaction.

  10. Graphene-silicon layered structures on single-crystalline Ir(111) thin films

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

    Que, Yande D.; Tao, Jing; Zhang, Yong; Wang, Yeliang L.; Wu, Lijun J.; Zhu, Yimei M.; Kim, Kisslinger; Weinl, Michael; Schreck, Matthias; Shen, Chengmin M.; et al

    2015-02-01T23:59:59.000Z

    Epitaxial growth of graphene on transition metal crystals, such as Ru,??? Ir,????? and Ni,??? provides large-area, uniform graphene layers with controllable defect density, which is crucial for practical applications in future devices. To decrease the high cost of single-crystalline metal bulks, single-crystalline metal films are strongly suggested as the substrates for epitaxial growth large-scale high-quality graphene.????? Moreover, in order to weaken the interactions of graphene with its metal host, which may result in a suppression of the intrinsic properties of graphene,? ? the method of element intercalation of semiconductors at the interface between an epitaxial graphene layer and a transitionmoremetal substrate has been successfully realized.????less

  11. Structural features of alkali and barium aluminofluorophosphate glasses studied by IR spectroscopy

    SciTech Connect (OSTI)

    Urusovskaya, L.N.; Smirnova, E.V. [Research and Technological Institute of Optical Materials Science, State Scientific Center, St. Petersburg (Russian Federation)

    1995-03-01T23:59:59.000Z

    IR reflection spectra of the Al(PO{sub 3}){sub 3}-MeF{sub x} glasses (Me=Li, Na, K, Ba) with the maximum content of fluoride varied for each specific glass within certain concentration limits are considered. Analysis of the spectra for glasses obtained upon variation in the content of alkali metal fluoride introduced into these glasses has demonstrated that the increase in the MeF{sub x} content leads to breaking the chain groupings and forming the [PO{sub 3}F]{sup 2-} groups, whereas the rise in concentration of barium fluoride in the Al(PO{sub 3}){sub 3}-BaF{sub 2} glasses brings about the stabilization of the chain structures.

  12. Express quality analysis of coal concentrates by diffuse reflection IR spectroscopy

    SciTech Connect (OSTI)

    V.N. Egorov; I.I. Mel'nikov; N.A. Tarasov; V.I. Butakova; Y.M. Posokhov [ZAO RMK (Russian Federation)

    2007-07-01T23:59:59.000Z

    Ongoing quality monitoring of coal concentrates is important today on account of instability in the raw materials for coking at OAO Magnitogorskii Metallurgicheskii Kombinat (MMK) and the variable composition of the coal batch for enrichment plants. Currently, numerous standardized methods permit the determination of the classificational and quality characteristics of coal and batch. These methods are slow, laborious, and relatively ineffective in industrial conditions. In May 2005, an automated Spektrotest express-analysis system developed by ECCI was installed in the coke laboratory at ZAO RMK in order to determine the quality of the coal concentrate and batch. The basic equipment is an IR spectrometer with a unit for Fourier transformation and a special optical module yielding the reflect on spectra of the pulverized coal. A control station based on a high-speed computer runs an algorithm for information analysis and storage and for printing out the test protocol. The Spektrotest system includes complex algorithms and software specially developed at ECCI.

  13. DESIGN AND CONSTRUCTION OF A 15 T, 120 MM BORE IR QUADRUPOLE MAGNET FOR LARP

    SciTech Connect (OSTI)

    Caspi, S.; Cheng, D.; Dietderich, D.; Felice, H.; Ferracin, P.; Hafalia, R.; Hannaford, R.; Sabbi, G. S.; Anerella, M.; Ghosh, A.; Schmalzle, J.; Wanderer, P.; Ambrosio, G.; Bossert, R.; Kashikhin, V.; Pasholk, D.; Zlobin, A.

    2009-05-04T23:59:59.000Z

    Pushing accelerator magnets beyond 10 T holds a promise of future upgrades to machines like the Large Hadron Collider (LHC) at CERN. Nb{sub 3}Sn conductor is at the present time the only practical superconductor capable of generating fields beyond 10 T. In support of the LHC Phase-II upgrade, the US LHC Accelerator Research Program (LARP) is developing a large bore (120 mm) IR quadrupole (HQ) capable of reaching 15 T at its conductor peak field and a peak gradient of 219 T/m at 1.9 K. While exploring the magnet performance limits in terms of gradient, forces and stresses the 1 m long two-layer coil will demonstrate additional features such as alignment and accelerator field quality. In this paper we summarize the design and report on the magnet construction progress.

  14. Near-IR adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy, NGC3227

    E-Print Network [OSTI]

    Scott C. Chapman; Simon L. Morris; Gordon A. H. Walker

    1999-12-01T23:59:59.000Z

    We present high spatial resolution, near-IR images in J, H, K of the nucleus of NGC3227, obtained with the Adaptive Optics bonnette on CFHT. The ~0.15 arcsec (17pc) resolution allows structures to be probed in the core region. Dust obscuration becomes significantly less pronounced at longer wavelengths, revealing the true geometry of the core region. We are able to identify two main features in our maps: (i) a spiraling association of knots with a counterpart in an HST F606W image; (ii) a smaller scale annulus, orthogonal to the spiral of knots. These features may provide a means to transport material inwards to fuel the active nucleus.

  15. Neutronic safety and transient analyses for potential LEU conversion of the IR-8 research reactor.

    SciTech Connect (OSTI)

    Deen, J. R.; Hanan, N. A.; Smith, R. S.; Matos, J. E.; Egorenkov, P. M.; Nasonov, V. A.

    1999-09-27T23:59:59.000Z

    Kinetic parameters, isothermal reactivity feedback coefficients and three transients for the IR-8 research reactor cores loaded with either HEU(90%), HEU(36%), or LEU (19.75%) fuel assemblies (FA) were calculated using three dimensional diffusion theory flux solutions, RELAP5/MOD3.2 and PARET. The prompt neutron generation time and effective delayed neutron fractions were calculated for fresh and beginning-of-equilibrium-cycle cores. Isothermal reactivity feedback coefficients were calculated for changes in coolant density, coolant temperature and fuel temperature in fresh and equilibrium cores. These kinetic parameters and reactivity coefficients were used in transient analysis models to predict power histories, and peak fuel, clad and coolant temperatures. The transients modeled were a rapid and slow loss-of-flow, a slow reactivity insertion, and a fast reactivity insertion.

  16. Disposal requirements for PCB waste

    SciTech Connect (OSTI)

    NONE

    1994-12-01T23:59:59.000Z

    Polychlorinated biphenyls (PCBs) are a class of organic chemicals that had become widely used in industrial applications due to their practical physical and chemical properties. Historical uses of PCBs include dielectric fluids (used in utility transformers, capacitors, etc.), hydraulic fluids, and other applications requiring stable, fire-retardant materials. Due to findings that PCBs may cause adverse health effects and due to their persistence and accumulation in the environment, the Toxic Substances Control Act (TSCA), enacted on october 11, 1976, banned the manufacture of PCBs after 1978 [Section 6(e)]. The first PCB regulations, promulgated at 40 CFR Part 761, were finalized on February 17, 1978. These PCB regulations include requirements specifying disposal methods and marking (labeling) procedures, and controlling PCB use. To assist the Department of Energy (DOE) in its efforts to comply with the TSCA statute and implementing regulations, the Office of Environmental Guidance has prepared the document ``Guidance on the Management of Polychlorinated Biphenyls (PCBs).`` That document explains the requirements specified in the statute and regulations for managing PCBs including PCB use, storage, transport, and disposal. PCB materials that are no longer in use and have been declared a waste must be disposed of according to the requirements found at 40 CFR 761.60. These requirements establish disposal options for a multitude of PCB materials including soil and debris, liquid PCBs, sludges and slurries, containers, transformers, capacitors, hydraulic machines, and other electrical equipment. This Information Brief supplements the PCB guidance document by responding to common questions concerning disposal requirements for PCBs. It is one of a series of Information Briefs pertinent to PCB management issues.

  17. OCCULTATION OF THE QUIESCENT EMISSION FROM Sgr A* BY IR FLARES

    SciTech Connect (OSTI)

    Yusef-Zadeh, F. [Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208 (United States); Wardle, M. [Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109 (Australia); Bushouse, H. [STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Dowell, C. D. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Roberts, D. A. [Adler Planetarium and Astronomy Museum, 1300 South Lake Shore Drive, Chicago, IL 60605 (United States)

    2010-11-20T23:59:59.000Z

    We have investigated the nature of flare emission from Sgr A* during multi-wavelength observations of this source that took place in 2004, 2005, and 2006. We present evidence for dimming of submillimeter and radio flux during the peak of near-IR flares. This suggests that the variability of Sgr A* across its wavelength spectrum is phenomenologically related. The model explaining this new behavior of flare activity could be consistent with adiabatically cooling plasma blobs that are expanding but also partially eclipsing the background quiescent emission from Sgr A*. When a flare is launched, the plasma blob is most compact and is brightest in the optically thin regime whereas the emission in radio/submillimeter wavelengths has a higher opacity. Absorption in the observed light curve of Sgr A* at radio/submillimeter flux is due to the combined effects of lower brightness temperature of plasma blobs with respect to the quiescent brightness temperature and high opacity of plasma blobs. This implies that plasma blobs are mainly placed in the magnetosphere of a disk-like flow or further out in the flow. The depth of the absorption being larger in submillimeter than in radio wavelengths implies that the intrinsic size of the quiescent emission increases with increasing wavelength which is consistent with previous size measurements of Sgr A*. Lastly, we believe that occultation of the quiescent emission of Sgr A* at radio/submillimeter by IR flares can be used as a powerful tool to identify flare activity at its earliest phase of its evolution.

  18. Johnson Noise Thermometry System Requirements

    SciTech Connect (OSTI)

    Britton Jr, Charles L [ORNL; Roberts, Michael [ORNL; Ezell, N Dianne Bull [ORNL; Qualls, A L [ORNL; Holcomb, David Eugene [ORNL

    2013-01-01T23:59:59.000Z

    This document is intended to capture the requirements for the architecture of the developmental electronics for the ORNL-lead drift-free Johnson Noise Thermometry (JNT) project conducted under the Instrumentation, Controls, and Human-Machine Interface (ICHMI) research pathway of the U.S. Department of Energy (DOE) Advanced Small Modular Reactor (SMR) Research and Development (R&D) program. The requirements include not only the performance of the system but also the allowable measurement environment of the probe and the allowable physical environment of the associated electronics. A more extensive project background including the project rationale is available in the initial project report [1].

  19. Project X functional requirements specification

    SciTech Connect (OSTI)

    Holmes, S.D.; Henderson, S.D.; Kephart, R.; Kerby, J.; Kourbanis, I.; Lebedev, V.; Mishra, S.; Nagaitsev, S.; Solyak, N.; Tschirhart, R.; /Fermilab

    2012-05-01T23:59:59.000Z

    Project X is a multi-megawatt proton facility being developed to support a world-leading program in Intensity Frontier physics at Fermilab. The facility is designed to support programs in elementary particle and nuclear physics, with possible applications to nuclear energy research. A Functional Requirements Specification has been developed in order to establish performance criteria for the Project X complex in support of these multiple missions, and to assure that the facility is designed with sufficient upgrade capability to provide U.S. leadership for many decades to come. This paper will briefly review the previously described Functional Requirements, and then discuss their recent evolution.

  20. SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Requirements...

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

    Requirements Management Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Requirements Management Checklist The following checklist is intended to provide system owners,...

  1. Degradation of parabolic-cylindrical solar collector performance: receiver misalignments and tracking inaccuracies

    SciTech Connect (OSTI)

    Ratzel, A.C.

    1986-01-01T23:59:59.000Z

    Studies were conducted to determine the performance of a 2-m, 90/sup 0/ E-W oriented solar reflector trough and a receiver assembly consisting of a receiver tube surrounded by a concentric outer glass envelope. Three receiver tube diameters (2.223, 2.54, and 3.175 cm o.d. tubes) were analyzed subject to a variety of collector errors including receiver misalignments and tracking bias, to assess the detrimental effects of these problems. Of the possible problems considered, it was shown that a misalignment of the receiver assembly above the focal plane is most critical, since the absorbed solar fluxes are concentrated near the base of the tube, leading to possible ''hot spots.'' In addition, as a result of this work, it was shown that the intermediate receiver tube size (2.54 cm o.d.) should be used with the 2-m reflector trough, so long as small errors and misalignments are expected.

  2. DEGREE REQUIREMENTS BIOLOGICAL ENGINEERING TECHNOLOGY

    E-Print Network [OSTI]

    Walter, M.Todd

    DEGREE REQUIREMENTS BIOLOGICAL ENGINEERING TECHNOLOGY ENVIRONMENTAL ENGINEERING TECHNOLOGY The curriculum in the technology programs must satisfy the College of Agriculture and Life Sciences (CALS for the technology programs are listed by subject matter in three major categories: (A) Basic Subjects, (B) Advanced

  3. APPLICATION REQUIREMENTS: Admission Applica on

    E-Print Network [OSTI]

    Rainforth, Emma C.

    basis. An interview may be required. MS Educa onal Technology Program: A state issued teaching cer: State issued teaching cer ficate. Three years of professional experience as a teacher:_____________ __________ ________________ Sex: Male Female Street Address Town or City County State Zip Code Home Telephone

  4. SRS control system upgrade requirements

    SciTech Connect (OSTI)

    Hill, L.F.

    1998-08-04T23:59:59.000Z

    This document defines requirements for an upgrade of the Sodium Removal System (SRS) control system. The upgrade is being performed to solve a number of maintainability and operability issues. The upgraded system will provide the same functions, controls and interlocks as the present system, and in addition provide enhanced functionality in areas discussed in this document.

  5. Computer Science Graduation Requirements Checklist

    E-Print Network [OSTI]

    Zadok, Erez

    Computer Science Graduation Requirements Checklist Fall 2008 Computer Science Courses Course Gr. Sem. Comments CSE 114 Computer Science I [prerequisite: CSE 110] CSE 214 Computer Science II CSE 215 Foundations of Computer Science CSE 219 Computer Science III CSE 220 Computer Organization CSE 300 Writing

  6. Computer Science Graduation Requirements Checklist

    E-Print Network [OSTI]

    Zadok, Erez

    Computer Science Graduation Requirements Checklist Fall 2009 Computer Science Courses Course Gr. Sem. Comments CSE 114 Computer Science I [prerequisite: CSE 110] CSE 214 Computer Science II CSE 215 Foundations of Computer Science CSE 219 Computer Science III CSE 220 Computer Organization CSE 300 Writing

  7. AMS vs. NWS: Educational Requirements

    E-Print Network [OSTI]

    · Reconstruction of past climates · Climate models · Causes of past and future climate change #12;Capstone methods · Oral, written, and multimedia communication ­ Ability to create and deliver scientific ­ Ability to effectively communicate with technical and lay audiences using scientific evidence #12;Required

  8. ALLOCATION OF REACTIVE SUPPORT REQUIREMENTS

    E-Print Network [OSTI]

    Gross, George

    the voltage setting point s kV of each bus Qk and the voltage profile for the buses c j Q . Recall that Q for these transactions so that all bus voltages meet the specified voltage profile requirements. Consequently load is locally met at the bus. In other words, we assume that at each load bus the power factor is 1

  9. Documentation Requirements for Learning Disabilities

    E-Print Network [OSTI]

    Documentation Requirements for Learning Disabilities Students, faculty, staff, and campus guests wishing to request accommodations due to learning disabilities should refer to the following documentation of interest. C) Documentation must be typed, dated, signed by the evaluator and submitted to ODR

  10. Six area firms receive ORNL small business awards | ornl.gov

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

    National Laboratory Communications 865.574.4399 Six area firms receive ORNL small business awards OAK RIDGE, Tenn., March 14, 2014 -- Six East Tennessee firms doing business...

  11. Thermal stress analysis of eccentric tube receiver using concentrated solar radiation

    SciTech Connect (OSTI)

    Wang, Fuqiang; Shuai, Yong; Yuan, Yuan; Yang, Guo; Tan, Heping [School of Energy Science and Engineering, Harbin Institute of Technology, 92, West Dazhi Street, Harbin 150001 (China)

    2010-10-15T23:59:59.000Z

    In the parabolic trough concentrator with tube receiver system, the heat transfer fluid flowing through the tube receiver can induce high thermal stress and deflection. In this study, the eccentric tube receiver is introduced with the aim to reduce the thermal stresses of tube receiver. The ray-thermal-structural sequential coupled numerical analyses are adopted to obtain the concentrated heat flux distributions, temperature distributions and thermal stress fields of both the eccentric and concentric tube receivers. During the sequential coupled numerical analyses, the concentrated heat flux distribution on the bottom half periphery of tube receiver is obtained by Monte-Carlo ray tracing method, and the fitting function method is introduced for the calculated heat flux distribution transformation from the Monte-Carlo ray tracing model to the CFD analysis model. The temperature distributions and thermal stress fields are obtained by the CFD and FEA analyses, respectively. The effects of eccentricity and oriented angle variation on the thermal stresses of eccentric tube receiver are also investigated. It is recommended to adopt the eccentric tube receiver with optimum eccentricity and 90 oriented angle as tube receiver for the parabolic trough concentrator system to reduce the thermal stresses. (author)

  12. Small-Particle Solar Receiver for High-Temperature Brayton Power...

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

    Receiver for High-Temperature Brayton Power Cycles This fact sheet describes a scattering solar thermal concentrators project awarded under the DOE's 2012 SunShot Concentrating...

  13. His Own Received Him Not: Jimmy Carter, the Religious Right, and the

    E-Print Network [OSTI]

    Sibille, Etienne

    His Own Received Him Not: Jimmy Carter, the Religious Right, and the 1980 Presidential Election recently, Redeemer: The Life of Jimmy Carter. Randall Balmer LECTURE COLLOQUIUM RELIGIOUS STUDIES

  14. Ultrafast UV Pump/IR Probe Studies of C-H Activation in Linear, Cyclic, and Aryl Hydrocarbons

    E-Print Network [OSTI]

    Harris, Charles B.

    Ultrafast UV Pump/IR Probe Studies of C-H Activation in Linear, Cyclic, and Aryl Hydrocarbons, cyclic, and aromatic hydrocarbon solvents on a femtosecond to microsecond time scale. These results have revealed that the structure of the hydrocarbon substrate affects the final C-H bond activation step, which

  15. Report No. C-SAFE-CD-IR-04-001 MPM VALIDATION: SPHERE-CYLINDER IMPACT TESTS

    E-Print Network [OSTI]

    Utah, University of

    Report No. C-SAFE-CD-IR-04-001 MPM VALIDATION: SPHERE-CYLINDER IMPACT TESTS: ENERGY BALANCE B, 2004 ABSTRACT This report discusses the energy balance results observed during the simulation. Banerjee Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA August 04

  16. Diamond and Related Materials, 3 (1994) 939-941 939 CVD diamond growth on germanium for IR window applications

    E-Print Network [OSTI]

    Bristol, University of

    1994-01-01T23:59:59.000Z

    [ Chemistry, Unil,ersity of Bristol, Cantock 's Close, Bristol BS8 1TS (UK) N. M. Everitt Department o[Aerospace with ition times. An alternative is to coat existing IR window epitaxial layers of Si-Ge alloy 2 Bm thick

  17. Hydrogen Bond Lifetimes and Energetics for Solute/Solvent Complexes Studied with 2D-IR Vibrational Echo Spectroscopy

    E-Print Network [OSTI]

    Fayer, Michael D.

    Hydrogen Bond Lifetimes and Energetics for Solute/Solvent Complexes Studied with 2D-IR Vibrational@stanford.edu Abstract: Weak hydrogen-bonded solute/solvent complexes are studied with ultrafast two the dissociation and formation rates of the hydrogen-bonded complexes. The dissociation rates of the weak hydrogen

  18. PRO: Professional Record Online G:\\IR\\PRO\\Implementation Plan\\SC\\PRO Steering Committee Minutes_020312

    E-Print Network [OSTI]

    PRO: Professional Record Online G:\\IR\\PRO\\Implementation Plan\\SC\\PRO Steering Committee Minutes in their work. The data entry team searched for photos/videos of music faculty online and found a few about PRO and will use the PRO website user guide and FAQs to respond to questions. Returning

  19. Symmetry Analysis for Tetrahedrane Tetrahedrane, C4H4, belongs to the Td point group. Use group theory to predict the number of IR and Raman

    E-Print Network [OSTI]

    Rioux, Frank

    Symmetry Analysis for Tetrahedrane Tetrahedrane, C4H4, belongs to the Td point group. Use group have three IR active modes (3T2) and seven Raman active modes (2A1 + 2E + 3T2). Two of the IR modes

  20. IRS Data Retrieval Tool Data is available within 1-2 weeks of electronically filing your taxes or 6-8 weeks of filling a paper tax return.

    E-Print Network [OSTI]

    Delene, David J.

    IRS Data Retrieval Tool Data is available within 1-2 weeks of electronically filing your taxes or 6: How to Use the IRS Data Retrieval Tool 1. Go to www.fafsa.ed.gov and click "Start Here". Enter you want to use the Data Retrieval tool for the STUDENT ONLY, press "next" at the bottom of the page

  1. Comparison of junction temperature evaluations in a power IGBT module using an IR camera and three thermo-sensitive electrical parameters

    E-Print Network [OSTI]

    and electrical methods. The main optical methods are local infrared sensors [3,4], optical fibers [5], infraredComparison of junction temperature evaluations in a power IGBT module using an IR camera and three information of the actual chip temperature distribution. In this paper, we propose to use infrared (IR

  2. Ferromagnetic Exchange Anisotropy from Antiferromagnetic Superexchange in the Mixed 3d 5d Transition-Metal Compound Sr3CuIrO6

    E-Print Network [OSTI]

    Ohta, Shigemi

    of Sciences, Beijing 100190, China 3 Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois of the unusual ferromagnetism in the one- dimensional copper-iridium oxide Sr3CuIrO6. Utilizing Ir L3 edge-insulator tran- sition was shown to exist in a variety of 5d iridium oxides [214]. An important consequence

  3. Requirements | Photosynthetic Antenna Research Center

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand Requirements Recently ApprovedReliability

  4. Velocity requirements for causality violation

    E-Print Network [OSTI]

    Giovanni Modanese

    2015-01-18T23:59:59.000Z

    We re-examine the "Regge-Tolman paradox" with reference to some recent experimental results. It is straightforward to find a formula for the velocity v of the moving system required to produce causality violation. This formula typically yields a velocity very close to the speed of light (for instance, v/c > 0.97 for X-shaped microwaves), which raises some doubts about the real physical observability of the violations. We then compute the velocity requirement introducing a delay between the reception of the primary signal and the emission of the secondary. It turns out that in principle for any delay it is possible to find moving observers able to produce active causal violation. This is mathematically due to the singularity of the Lorentz transformations for beta to 1. For a realistic delay due to the propagation of a luminal precursor, we find that causality violations in the reported experiments are still more unlikely (v/c > 0.989), and even in the hypothesis that the superluminal propagation velocity goes to infinity, the velocity requirement is bounded by v/c > 0.62. We also prove that if two macroscopic bodies exchange energy and momentum through superluminal signals, then the swap of signal source and target is incompatible with the Lorentz transformations; therefore it is not possible to distinguish between source and target, even with reference to a definite reference frame.

  5. Spring 2011 ODS Director Paul Coates Receives Award from American Society for Nutrition

    E-Print Network [OSTI]

    Bandettini, Peter A.

    Spring 2011 ODS Director Paul Coates Receives Award from American Society for Nutrition The Office of Dietary Supplements (ODS) Director Paul Coates is the 2011 recipient of the Conrad A. Elvehjem Award received the award at the annual meeting of the society on April 10. In addition to directing ODS, Dr

  6. A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems

    E-Print Network [OSTI]

    Itoh, Tatsuo

    of California, Los Angeles 405 Hilgard Ave., Los Angeles, CA 90095 Abstract -- A reconfigurable active time. In a retrodirective system, the communication link between the transponder and base station can (a), the array system works as a direct conversion receiver and stores data received from remote

  7. Impact of Transmit Power Control and Receiver Association on Interweave Network Interference

    E-Print Network [OSTI]

    Tellambura, Chintha

    Impact of Transmit Power Control and Receiver Association on Interweave Network Interference S power control and receiver association schemes. For this purpose, secondary transmitter nodes, a per-user transmit power control scheme is considered in which the transmit power is based

  8. Thermal performance simulation of a solar cavity receiver under windy conditions

    SciTech Connect (OSTI)

    Fang, J.B.; Wei, J.J.; Dong, X.W.; Wang, Y.S. [State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)

    2011-01-15T23:59:59.000Z

    Solar cavity receiver plays a dominant role in the light-heat conversion. Its performance can directly affect the efficiency of the whole power generation system. A combined calculation method for evaluating the thermal performance of the solar cavity receiver is raised in this paper. This method couples the Monte-Carlo method, the correlations of the flow boiling heat transfer, and the calculation of air flow field. And this method can ultimately figure out the surface heat flux inside the cavity, the wall temperature of the boiling tubes, and the heat loss of the solar receiver with an iterative solution. With this method, the thermal performance of a solar cavity receiver, a saturated steam receiver, is simulated under different wind environments. The highest wall temperature of the boiling tubes is about 150 C higher than the water saturation temperature. And it appears in the upper middle parts of the absorbing panels. Changing the wind angle or velocity can obviously affect the air velocity inside the receiver. The air velocity reaches the maximum value when the wind comes from the side of the receiver (flow angle {alpha} = 90 ). The heat loss of the solar cavity receiver also reaches a maximum for the side-on wind. (author)

  9. Green's function retrieval from reflection data, in absence of a receiver at the virtual source position

    E-Print Network [OSTI]

    Snieder, Roel

    Green's function retrieval from reflection data, in absence of a receiver at the virtual source; accepted 6 March 2014) The methodology of Green's function retrieval by cross-correlation has led to many, a virtual source is created at the position of a receiver. Here a method is discussed for Green's function

  10. AMMONIA RECEIVER DESIGN FOR A 500m2 Rebecca Dunn, Keith Lovegrove, and Greg Burgess

    E-Print Network [OSTI]

    decomposition of ammonia to store solar energy. Ammonia passes alternately between energy-storing (dissociationAMMONIA RECEIVER DESIGN FOR A 500m2 DISH Rebecca Dunn, Keith Lovegrove, and Greg Burgess Solar 0200, Australia. Phone: +61 2 6125 4046. rebecca.dunn@anu.edu.au Abstract Previous ammonia receiver

  11. Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine

    E-Print Network [OSTI]

    Ponce, V. Miguel

    Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine Dr will describe the design of a high temperature solar receiver capable of driving a gas turbine for power conclusions regarding the best way to operate a solar powered gas turbine have been obtained

  12. LNA and Mixer Designs for Multi-Band Receiver Front-Ends

    E-Print Network [OSTI]

    Poobuapheun, Nuntachai

    2009-01-01T23:59:59.000Z

    15mW, 70kHz 1/f Corner Direct Conversion CMOS Receiver, inA +78 dBm IIP2 CMOS Direct Conversion Mixer for FullyC. Hull, et al. , A Direct-Conversion Receiver for 900MHz (

  13. Power Control Algorithms for MMSE Receivers in CDMA Systems Yong Liu and Tan F. Wong

    E-Print Network [OSTI]

    Wong, Tan F.

    , we describe the system model. Power control al- gorithms for the MMSE receiver are introducedPower Control Algorithms for MMSE Receivers in CDMA Systems Yong Liu and Tan F. Wong Department system. The objective of power control is to guaran- tee that certain signal-to-interference ratio (SIR

  14. DYNAMIC SIMULATION OF MONO-TUBE CAVITY RECEIVERS FOR DIRECT STEAM GENERATION

    E-Print Network [OSTI]

    for intended deployment in large arrays of dishes, with steam directed to a central large steam turbine powerDYNAMIC SIMULATION OF MONO-TUBE CAVITY RECEIVERS FOR DIRECT STEAM GENERATION Jos Zapata 1 , John dish has been in operation since 2010 with a mono-tube steam cavity receiver, the SG4 system

  15. Kalman filter based MMSE receiver for the DS-CDMA system in a Rayleigh fading channel

    E-Print Network [OSTI]

    Hassan, Khursheed

    2000-01-01T23:59:59.000Z

    and the receiver, the channel is modeled as a fading channel. Fading affects the transmitted signal by changing its amplitude and phase. This in turn plays havoc with the detector. The receiver not only makes wrong decisions about the transmitted bits (because...

  16. The Ionized Absorber and Nuclear Environment of IRAS 13349+2438: Multi-wavelength insights from coordinated Chandra HETGS, HST STIS, HET, and Spitzer IRS

    E-Print Network [OSTI]

    Lee, Julia C; Chakravorty, Susmita; Rahoui, Farid; Young, Andrew J; Brandt, William N; Hines, Dean C; Ogle, Patrick M; Reynolds, Christopher S

    2013-01-01T23:59:59.000Z

    We present results from a coordinated IR-to-X-ray spectral campaign of the QSO IRAS 13349+2438. Optical spectra reveal extreme Eigenvector-1 characteristics, but the H-beta line width argues against a NLS1 classification; we refine z=0.10853 based on [O III]. We estimate a BH mass=10^9 Msun using 2 independent methods (H-beta line width & SED fits). Blue-shifted absorption (-950km/s & -75km/s) is seen for the 1st time in STIS UV spectra from Ly-alpha, NV, & CIV. The higher velocity UV lines are coincident with the lower-ionisation (xi~1.6) X-ray warm absorber lines. A dusty multiple ionization absorber blueshifted by 700-900km/s is required to fit the X-ray data. Theoretical models comparing different ionising SEDs reveal that a UV-inclusive (i.e., the accretion disc) ionising continuum strongly impacts conclusions for the thermodynamic stability of the warm absorber. Specific to IRAS13349, an Xray-UV ionising SED favors a continuous distribution of ionisation states in a smooth flow (this paper),...

  17. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 1. Design description

    SciTech Connect (OSTI)

    Not Available

    1983-12-31T23:59:59.000Z

    The design of the 30 MWe central receiver solar power plant to be located at Carrisa Plains, San Luis Obispo County, California, is summarized. The plant uses a vertical flat-panel (billboard solar receiver located at the top of a tower to collect solar energy redirected by approximately 1900 heliostats located to the north of the tower. The solar energy is used to heat liquid sodium pumped from ground level from 610 to 1050/sup 0/F. The power conversion system is a non-reheat system, cost-effective at this size level, and designed for high-efficiency performance in an application requiring daily startup. Successful completion of this project will lead to power generation starting in 1986. This report discusses in detail the design of the collector system, heat transport system, thermal storage subsystem, heat transport loop, steam generation subsystem, electrical, instrumentation, and control systems, power conversion system, master control system, and balance of plant. The performance, facility cost estimate and economic analysis, and development plan are also discussed.

  18. Seismic Performance Requirements for WETF

    SciTech Connect (OSTI)

    Hans Jordan

    2001-01-01T23:59:59.000Z

    This report develops recommendations for requirements on the Weapons Engineering Tritium Facility (WETF) performance during seismic events. These recommendations are based on fragility estimates of WETF structures, systems, and components that were developed by LANL experts during facility walkdowns. They follow DOE guidance as set forth in standards DOE-STD-1021-93, ''Natural Phenomena Hazards Performance Categorization Guidelines for Structures, Systems, and Components'' and DOE-STD-1020-94, ''Natural Phenomena Hazards Design and Evaluation Criteria for Department of Energy Facilities''. Major recommendations are that WETF institute a stringent combustible loading control program and that additional seismic bracing and anchoring be provided for gloveboxes and heavy equipment.

  19. Stellar Astrophysics Requirements NERSC Forecast

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900Steep Slope Calculator Estimates Cooling andRequirements

  20. A car-borne highly sensitive near-IR diode-laser methane detector

    SciTech Connect (OSTI)

    Berezin, A G; Ershov, Oleg V; Shapovalov, Yu P [Natural Science Center, A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

    2003-08-31T23:59:59.000Z

    A highly sensitive automated car-borne detector for measuring methane concentration in real time is designed, developed and tested under laboratory and field conditions. Measurements were made with the help of an uncooled tunable near-IR 1.65-{mu}m laser diode. The detector consists of a multipass optical cell with a 45-m long optical path and a base length of 0.5 m. The car-borne detector is intended for monitoring the methane concentration in air from the moving car to reveal the leakage of domestic gas. The sensitivity limit (standard deviation) under field conditions is 1 ppm (20 ppb under laboratory conditions) for a measuring time of 0.4 s. The measuring technique based on the detection of a single methane line ensured a high selectivity of methane detector relative to other gases. The methane detector can be easily modified for measuring other simple-molecule gases (e.g., CO, CO{sub 2}, HF, NO{sub 2}, H{sub 2}O) by replacing the diode laser and varying the parameters of the control program. (special issue devoted to the memory of academician a m prokhorov)

  1. SIZE AND TEMPERATURE DEPENDENCE IN THE FAR-IR SPECTRA OF WATER ICE PARTICLES

    SciTech Connect (OSTI)

    Medcraft, Chris; McNaughton, Don; Thompson, Chris D. [School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800 (Australia); Appadoo, Dominique [Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168 (Australia); Bauerecker, Sigurd [Institut fuer Physikalische und Theoretische Chemie, Technische Universitaet Braunschweig, Hans-Sommer-Strasse 10, D-38106 Braunschweig (Germany); Robertson, Evan G., E-mail: E.Robertson@latrobe.edu.au [Department of Chemistry and La Trobe Institute of Molecular Sciences, La Trobe University, Bundoora, Victoria 3086 (Australia)

    2012-10-10T23:59:59.000Z

    Spectra of water-ice aerosol particles have been measured in the far-IR region using synchrotron radiation. The particles in the nanoscale size regime of 1-100 nm were formed by rapid collisional cooling at temperatures ranging from 4 to 190 K. The spectra show the characteristic bands centered near 44 {mu}m (230 cm{sup -1}) and 62 {mu}m (160 cm{sup -1}) associated with the intermolecular lattice modes of crystalline ice at all temperatures, in contrast to previous studies of thin films formed by vapor deposition where amorphous ice is generated below 140 K. The bands shift to higher wavenumber values as the temperature is reduced, consistent with the trend seen in earlier studies, but in our experiments the actual peak positions in the aerosol particle spectra are consistently higher by ca. 4 cm{sup -1}. This finding has implications for the potential use of these spectral features as a temperature probe. The particle sizes are small enough for their spectra to be free of scattering effects, and therefore provide a means to assess imaginary refractive index values obtained through Kramers-Kronig analyses of thin film spectra.

  2. Setting temperature effect in polycrystalline exchange-biased IrMn/CoFe bilayers

    SciTech Connect (OSTI)

    Fernandez-Outon, L. E.; Araujo Filho, M. S.; Araujo, R. E.; Ardisson, J. D.; Macedo, W. A. A. [Laboratorio de Fisica Aplicada, Centro de Desenvolvimento da Tecnologia Nuclear, 31270-901 Belo Horizonte, MG (Brazil)

    2013-05-07T23:59:59.000Z

    We study the effect of atomic interdiffusion on the exchange bias of polycrystalline IrMn/({sup 57}Fe + CoFe) multilayers due to the thermal setting process of exchange coupling during field annealing. Depth-resolved {sup 57}Fe conversion electron Moessbauer spectroscopy was used to quantify atomic interdiffusion. Vibrating sample magnetometry was used to monitor the variation of exchange bias and magnetisation. It was found that interface sharpness is only affected above {approx}350 Degree-Sign C. Three different stages for the setting of exchange bias can be inferred from our results. At the lower setting temperatures (up to 350 Degree-Sign C), the effect of field annealing involves alignment of spins and interfacial coupling due to the setting of both antiferromagnetic (AF) bulk and interface without significant interdiffusion. At a second stage (350-450 Degree-Sign C), where AF ordering dominates over diffusion effects, atomic migration and increased setting of AF spins co-exist to produce a peak in exchange bias field and coercivity. On a third stage (>450 Degree-Sign C), severe chemical intermixing reduces significantly the F/AF coupling.

  3. Vacuum-UV to IR supercontinuum in hydrogen-filled photonic crystal fiber

    E-Print Network [OSTI]

    Belli, Federico; Chang, Wonkeun; Travers, John C; Russell, Philip St J

    2015-01-01T23:59:59.000Z

    Although supercontinuum sources are readily available for the visible and near infrared, and recently also for the mid-IR, many areas of biology, chemistry and physics would benefit greatly from the availability of compact, stable and spectrally bright deep ultraviolet (DUV) and vacuum ultraviolet (VUV) supercontinuum sources. Such sources have however not yet been developed. Here we report the generation of a bright supercontinuum, spanning more than three octaves from 124 nm to beyond 1200 nm, in hydrogen-filled kagom\\'e-style hollow-core photonic crystal fiber (kagom\\'e-PCF). Few-{\\mu}J, 30 fs pump pulses at wavelength 805 nm are launched into the fiber, where they undergo self-compression via the Raman-enhanced Kerr effect. Modeling indicates that before reaching a minimum sub-cycle pulse duration of ~1 fs, much less than one period of molecular vibration (8 fs), nonlinear reshaping of the pulse envelope, accentuated by self-steepening and shock formation, creates an ultrashort feature that causes impulsi...

  4. WATER ABSORPTION FROM GAS VERY NEAR THE MASSIVE PROTOSTAR AFGL 2136 IRS 1

    SciTech Connect (OSTI)

    Indriolo, Nick; Neufeld, D. A. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218 (United States); Seifahrt, A. [Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States); Richter, M. J. [Department of Physics, University of California Davis, Davis, CA 95616 (United States)

    2013-10-10T23:59:59.000Z

    We present ground-based observations of the ?{sub 1} and ?{sub 3} fundamental bands of H{sub 2}O toward the massive protostar AFGL 2136 IRS 1, identifying absorption features due to 47 different ro-vibrational transitions between 2.468 ?m and 2.561 ?m. Analysis of these features indicates the absorption arises in warm (T = 506 25 K), very dense (n(H{sub 2}) > 5 10{sup 9} cm{sup 3}) gas, suggesting an origin close to the central protostar. The total column density of warm water is estimated to be N(H{sub 2}O) = (1.02 0.02) 10{sup 19} cm{sup 2}, giving a relative abundance of N(H{sub 2}O)/N(H{sub 2}) ? 10{sup 4}. Our study represents the first extensive use of water vapor absorption lines in the near infrared, and demonstrates the utility of such observations in deriving physical parameters.

  5. Physics Degree Requirements 2008 -2010 Bulletin

    E-Print Network [OSTI]

    Dyer, Bill

    Physics Degree Requirements 2008 -2010 Bulletin Professional Option Student: __________________________ Advisor: ____________________________ Updated 2/8/08 Physics Required Cr Gr Taken PHYS 137 1 ___ ______ PHYS 461 4 ___ ______ PHYS 490 3 ___ ______ Subtotal 47 (C- or better required) Physics Electives (8 cr

  6. HEP/NP Requirements Review 2013

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

    FES Requirements Review 2014 BES Requirements Review 2014 Requirements Review Reports Case Studies Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638...

  7. DOE-STD-1104 Requirements Crosswalk

    Office of Environmental Management (EM)

    09 to DOE-STD-1104-2014 Requirements Matrix - 1 - No. Section Page Number DOE-STD-1104-2009 Requirement DOE-STD-1104-2014 Requirements Comment Gen DOE-STD-1104-2009 was broadly...

  8. A Requirements Analyst's Apprentice: A Proposal

    E-Print Network [OSTI]

    Reubenstein, Howard

    The Requirements Analyst's APprentice (RAAP) partially automates the modeling process involved in creating a software requirement. It uses knowledge of the specific domain and general experience regarding software requirements ...

  9. Studying the Communications Requirements of Electric Utilities...

    Office of Environmental Management (EM)

    Studying the Communications Requirements of Electric Utilities to Inform Federal Smart Grid Policies- Public Meeting Studying the Communications Requirements of Electric Utilities...

  10. Microsoft Word - Requirements_list.docx

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

    SELECTED LIST OF REQUIREMENTS DESCRIPTION REQUIREMENT APPLICABILITY 1. Federal Motor Carrier Registration 49 CFR 390.19; 390.21 Motor carriers that conduct commercial motor vehicle...

  11. Required Training for Users | Advanced Photon Source

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

    Required Training for Users All APS users, including APS staff, resident users, general users, etc., must complete the required "core" courses listed below before participating in...

  12. Bioinformatics and Genomics Degree Requirements Booklet

    E-Print Network [OSTI]

    dePamphilis, Claude

    Bioinformatics and Genomics Degree Requirements Booklet Fall 2010 #12;Contents Course Requirements Bioinformatics and Genomics Curriculum -------------------------------------------------------8 General #12;Bioinformatics and Genomics Option (BG

  13. Hazardous Waste Minimum Distance Requirements (Connecticut)

    Broader source: Energy.gov [DOE]

    These regulations set minimum distance requirements between certain types of facilities that generate, process, store, and dispose of hazardous waste and other land uses. The regulations require an...

  14. Cold vacuum drying facility design requirements

    SciTech Connect (OSTI)

    IRWIN, J.J.

    1999-07-01T23:59:59.000Z

    This document provides the detailed design requirements for the Spent Nuclear Fuel Project Cold Vacuum Drying Facility. Process, safety, and quality assurance requirements and interfaces are specified.

  15. Sideband characterization and atmospheric observations with various 340 GHz heterodyne receivers

    SciTech Connect (OSTI)

    Renker, Matthias, E-mail: renker@iap.unibe.ch; Murk, Axel [Institute of Applied Physics, University of Bern, Bern (Switzerland); Rea, Simon P. [STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire (United Kingdom); Emrich, A.; Frisk, U. [OMNISYS Instruments, Vstra Frlunda (Sweden)

    2014-08-15T23:59:59.000Z

    This paper describes sideband response measurements and atmospheric observations with a double sideband and two Single Sideband (SSB) receiver prototypes developed for the multi-beam limb sounder instrument stratosphere-troposphere exchange and climate monitor radiometer. We first show an advanced Fourier-Transform Spectroscopy (FTS) method for sideband response and spurious signal characterization. We then present sideband response measurements of the different prototype receivers and we compare the results of the SSB receivers with sideband measurements by injecting a continuous wave signal into the upper and lower sidebands. The receivers were integrated into a total-power radiometer and atmospheric observations were carried out. The observed spectra were compared to forward model spectra to conclude on the sideband characteristics of the different receivers. The two sideband characterization methods show a high degree of agreement for both SSB receivers with various local oscillator settings. The measured sideband response was used to correct the forward model simulations. This improves the agreement with the atmospheric observations and explains spectral features caused by an unbalanced sideband response. The FTS method also allows to quantify the influence of spurious harmonic responses of the receiver.

  16. Suction-recirculation device for stabilizing particle flows within a solar powered solid particle receiver

    DOE Patents [OSTI]

    Kolb, Gregory J. (Albuquerque, NM)

    2012-02-07T23:59:59.000Z

    A suction-recirculation device for stabilizing the flow of a curtain of blackened heat absorption particles falling inside of a solar receiver with an open aperture. The curtain of particles absorbs the concentrated heat from a solar mirror array reflected up to the receiver on a solar power tower. External winds entering the receiver at an oblique angle can destabilize the particle curtain and eject particles. A fan and ductwork is located behind the back wall of the receiver and sucks air out through an array of small holes in the back wall. Any entrained particles are separated out by a conventional cyclone device. Then, the air is recirculated back to the top of the receiver by injecting the recycled air through an array of small holes in the receiver's ceiling and upper aperture front wall. Since internal air is recirculated, heat losses are minimized and high receiver efficiency is maintained. Suction-recirculation velocities in the range of 1-5 m/s are sufficient to stabilize the particle curtain against external wind speeds in excess of 10 m/s.

  17. Tuning the Jeff=1/2 insulating state via electron doping and pressure in the double-layered iridate Sr3Ir2O7

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

    Li, L.; Kong, P. P.; Qi, T. F.; Jin, C. Q.; Yuan, S. J.; DeLong, L. E.; Schlottmann, P.; Cao, G.

    2013-06-01T23:59:59.000Z

    Sr3Ir2O7 exhibits a novel Jeff=12 insulating state that features a splitting between Jeff=1/2 and 3/2 bands due to spin-orbit interaction. We report a metal-insulator transition in Sr3Ir2O7 via either dilute electron doping (La3+ for Sr2+) or application of high pressure up to 35 GPa. Our study of single-crystal Sr3Ir2O7 and (Sr1?xLax)3Ir2O7 reveals that application of high hydrostatic pressure P leads to a drastic reduction in the electrical resistivity by as much as six orders of magnitude at a critical pressure PC = 13.2 GPa, manifesting a closing of the gap; but further increasing P up to 35 GPa produces no fully metallic state at low temperatures, possibly as a consequence of localization due to a narrow distribution of bonding angles ?. In contrast, slight doping of La3+ ions for Sr2+ ions in Sr3Ir2O7 readily induces a robust metallic state in the resistivity at low temperatures; the magnetic ordering temperature is significantly suppressed but remains finite for (Sr0.95La0.05)3Ir2O7 where the metallic state occurs. The results are discussed along with comparisons drawn with Sr2IrO4, a prototype of the Jeff=1/2 insulator.

  18. New mechanism for nonlocality from string theory: UV-IR quantum entanglement and its imprints on the CMB

    SciTech Connect (OSTI)

    Minton, Gregory; Sahakian, Vatche [Harvey Mudd College, Physics Department, 241 Platt Boulevard, Claremont, California 91711 (United States)

    2008-01-15T23:59:59.000Z

    Puff field theories (PFT) arise as the decoupling limits of D3 branes in a Melvin universe and exhibit spatially nonlocal dynamics. Unlike other realizations of nonlocality in string theory, PFTs have full SO(3) rotational symmetry. In this work, we analyze the strongly coupled regime of a PFT through gravitational holography. We find a novel mechanism at the heart of the phenomenon of nonlocality: a quantum entanglement of UV and IR dynamics. In the holographic bulk, this translates to an apparent horizon splitting the space into two regions--with the UV completion of the PFT sitting at the horizon. We unravel this intricate UV-IR setting and devise a prescription for computing correlators that extends the original dictionary of holographic renormalization group. We then implement a cosmological scenario where PFT correlators set the initial conditions for primordial fluctuations. We compute the associated power spectrum of the cosmic microwave background and find that the scenario allows for a distinct stringy signature.

  19. X-ray-induced electronic structure change in CuIr{sub 2}S{sub 4}

    SciTech Connect (OSTI)

    Gretarsson, H.; Kim, Young-June [Department of Physics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 1A7 (Canada); Kim, Jungho; Casa, D.; Gog, T. [CMC-XOR, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Choi, K. R. [l-PEM, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Cheong, S. W. [l-PEM, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); R-CEM and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854 (United States)

    2011-09-15T23:59:59.000Z

    The electronic structure of CuIr{sub 2}S{sub 4} is investigated using various bulk-sensitive x-ray spectroscopic methods near the Ir L{sub 3} edge: resonant inelastic x-ray scattering (RIXS), x-ray absorption spectroscopy in the partial fluorescence yield mode, and resonant x-ray emission spectroscopy. A strong RIXS signal (0.75 eV) resulting from a charge-density-wave gap opening is observed below the metal-insulator transition temperature of 230 K. The resultant modification of electronic structure is consistent with the density functional theory prediction. In the spin- and charge-dimer disordered phase induced by x-ray irradiation below 50 K, we find that a broad peak around 0.4 eV appears in the RIXS spectrum.

  20. Relation of SiO maser emission to IR radiation in evolved stars based on the MSX observation

    E-Print Network [OSTI]

    B. W. Jiang

    2002-01-06T23:59:59.000Z

    Based on the space MSX observation in bands A(8$\\mu$m), C(12$\\mu$m), D(15$\\mu$m) and E(21$\\mu$m), and the ground SiO maser observation of evolved stars by the Nobeyama 45-m telescope in the v=1 and v=2 J=1-0 transitions, the relation between SiO maser emission and mid-IR continuum radiation is analyzed. The relation between SiO maser emission and the IR radiation in the MSX bands A, C, D and E is all clearly correlated. The SiO maser emission can be explained by a radiative pumping mechanism according to its correlation with infrared radiation in the MSX band A.