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1

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2005-03-31T23:59:59.000Z

2

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N. P. Paulsson

2005-09-30T23:59:59.000Z

3

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2006-05-05T23:59:59.000Z

4

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2005-08-21T23:59:59.000Z

5

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to perform high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology has been hampered by the lack of acquisition technology necessary to record large volumes of high frequency, high signal-to-noise-ratio borehole seismic data. This project took aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array has removed the technical acquisition barrier for recording the data volumes necessary to do high resolution 3D VSP and 3D cross-well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that promise to take the gas industry to the next level in their quest for higher resolution images of deep and complex oil and gas reservoirs. Today only a fraction of the oil or gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of detailed compartmentalization of oil and gas reservoirs. In this project, we developed a 400 level 3C borehole seismic receiver array that allows for economic use of 3D borehole seismic imaging for reservoir characterization and monitoring. This new array has significantly increased the efficiency of recording large data volumes at sufficiently dense spatial sampling to resolve reservoir complexities. The receiver pods have been fabricated and tested to withstand high temperature (200 C/400 F) and high pressure (25,000 psi), so that they can operate in wells up to 7,620 meters (25,000 feet) deep. The receiver array is deployed on standard production or drill tubing. In combination with 3C surface seismic or 3C borehole seismic sources, the 400 level receiver array can be used to obtain 3D 9C data. These 9C borehole seismic data provide both compressional wave and shear wave information that can be used for quantitative prediction of rock and pore fluid types. The 400-level borehole receiver array has been deployed successfully in a number of oil and gas wells during the course of this project, and each survey has resulted in marked improvements in imaging of geologic features that are critical for oil or gas production but were previously considered to be below the limits of seismic resolution. This added level of reservoir detail has resulted in improved well placement in the oil and gas fields that have been drilled using the Massive 3D VSP{reg_sign} images. In the future, the 400-level downhole seismic receiver array is expected to continue to improve reservoir characterization and drilling success in deep and complex oil and gas reservoirs.

Bjorn N. P. Paulsson

2006-09-30T23:59:59.000Z

6

Reliability Prediction -Array D Redundant Command Receiver  

E-Print Network [OSTI]

Reliability Prediction - Array D Redundant Command Receiver ATM 981 I PAGI 1 OP 16 DATE 26 Feb. 1971 This Reliability Prediction was prepared by Motorola's Government Electronics Division as required combiner· .. There was a reliability design goal of · 998 for a two-year mission on the ... lunar surface

Rathbun, Julie A.

7

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

E-Print Network [OSTI]

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

Ellingson, Steven W.

8

A Digital-Receiver for the Murchison Widefield Array  

E-Print Network [OSTI]

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 ...

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

9

A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems  

E-Print Network [OSTI]

A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems retrodirective/direct conversion receiver array is presented. The system can serve as both a retrodirective array transponder and a direct conversion receiver simply by changing the frequency of the LO applied to the mixers

Itoh, Tatsuo

10

Photocounting Array Receivers for Optical Communication Through the Lognormal Atmospheric  

E-Print Network [OSTI]

to the background noise power density. The background noise takes into account various thermal radiation sources and their relative merits are presented positive gain (e.g., photomultipliers) the thermal noise introduced at each detector in the array.' These counts are Poisson distributed with constant mean, proportional

Teich, Malvin C.

11

Novel 16-Channel Receive Coil Array for Accelerated Upper Airway MRI at 3 Tesla  

E-Print Network [OSTI]

Novel 16-Channel Receive Coil Array for Accelerated Upper Airway MRI at 3 Tesla Yoon-Chul Kim,1 a novel 16-channel 3 Tesla receive coil that is highly sensitive to the human upper airway and investigate on articulatory timing may illuminate the general question of how language-specific knowledge is related to motor

Southern California, University of

12

Receiver Antenna Array for a Multichannel Sense-and-Avoid Radar for Small UAVs  

E-Print Network [OSTI]

Receiver Antenna Array for a Multichannel Sense-and-Avoid Radar for Small UAVs Jose Francisco for use in a sense-and-avoid radar for use in the Cessna C-172 and small Unmanned Aerial Vehicles (UAVs. . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . ..10 1.1.1 Multichannel Sense-and-Avoid Radar for UAVs. . . . . . . . . . . . . . . . . . . . . . ...10

Kansas, University of

13

UWB RADAR IMAGING SYSTEM WITH TWO-ELEMENT RECEIVING ARRAY ANTENNA  

E-Print Network [OSTI]

-domain focusing and imaging. Simulated and measured radar images demonstrate radar operation to map out a person considerably the level of signals scat- tered by background beyond the radar FOV. Those high-performed antennaUWB RADAR IMAGING SYSTEM WITH TWO-ELEMENT RECEIVING ARRAY ANTENNA Dmitriy L. Sostanovsky1

Southern California, University of

14

Distributed Array of GPS Receivers for 3D Wind Profile Determination in Wind Farms  

E-Print Network [OSTI]

Distributed Array of GPS Receivers for 3D Wind Profile Determination in Wind Farms Derek Chen to pursue further graduate studies. His research interests are in autonomous systems, remote sensing presentation awards at ION GNSS conferences. ABSTRACT Wind energy is currently one of the fastest growing

Gao, Grace Xingxin

15

Fully Integrated Frequency and Phase Generation for a 6-18GHz Tunable Multi-Band Phased-Array Receiver in CMOS  

E-Print Network [OSTI]

control, phase locked loops, phase noise, phased arrays, radio receivers I. INTRODUCTION Very large-scale phased-arrays covering a wide range of frequencies can provide exciting new opportunities for increasedFully Integrated Frequency and Phase Generation for a 6-18GHz Tunable Multi-Band Phased

Hajimiri, Ali

16

Low-noise IIEB heterodyne receivers and focal plane arrays for the TIIz regime using NbN  

E-Print Network [OSTI]

Depament of Microelectronics, Chalmers University of Technology, Gothenburg, Sweden eDepartment ofPhysics, Moscow State temperature) and recent measured resulis approach this. Furthermore, the LO power requirement of HEB receivers detectors, hot electron bolometer, superconducting films, submillimeter wave astronomy, submillimeter wave

Massachusetts at Lowell, University of

17

Central solar energy receiver  

DOE Patents [OSTI]

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.

Drost, M. Kevin (Richland, WA)

1983-01-01T23:59:59.000Z

18

Passive microfluidic array card and reader  

DOE Patents [OSTI]

A microfluidic array card and reader system for analyzing a sample. The microfluidic array card includes a sample loading section for loading the sample onto the microfluidic array card, a multiplicity of array windows, and a transport section or sections for transporting the sample from the sample loading section to the array windows. The microfluidic array card reader includes a housing, a receiving section for receiving the microfluidic array card, a viewing section, and a light source that directs light to the array window of the microfluidic array card and to the viewing section.

Dugan, Lawrence Christopher (Modesto, CA); Coleman, Matthew A. (Oakland, CA)

2011-08-09T23:59:59.000Z

19

Central solar-energy receiver  

DOE Patents [OSTI]

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.

Not Available

1981-10-27T23:59:59.000Z

20

Magnetic arrays  

DOE Patents [OSTI]

Electromagnet arrays are disclosed which can provide selected field patterns in either two or three dimensions, and in particular, which can provide single-sided field patterns in two or three dimensions. These features are achieved by providing arrays which have current densities that vary in the windings both parallel to the array and in the direction of array thickness. 12 figs.

Trumper, D.L.; Kim, W.; Williams, M.E.

1997-05-20T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Radiation receiver  

DOE Patents [OSTI]

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.

Hunt, A.J.

1983-09-13T23:59:59.000Z

22

Radiation receiver  

DOE Patents [OSTI]

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.

Hunt, Arlon J. (Oakland, CA)

1983-01-01T23:59:59.000Z

23

Nanocylinder arrays  

DOE Patents [OSTI]

Pathways to rapid and reliable fabrication of nanocylinder arrays are provided. Simple methods are described for the production of well-ordered arrays of nanopores, nanowires, and other materials. This is accomplished by orienting copolymer films and removing a component from the film to produce nanopores, that in turn, can be filled with materials to produce the arrays. The resulting arrays can be used to produce nanoscale media, devices, and systems.

Tuominen, Mark (Shutesbury, MA); Schotter, Joerg (Bielefeld, DE); Thurn-Albrecht, Thomas (Freiburg, DE); Russell, Thomas P. (Amherst, MA)

2009-08-11T23:59:59.000Z

24

Array combination for parallel imaging in Magnetic Resonance Imaging  

E-Print Network [OSTI]

......................................103 Figure 51. Diagram of geometry used...........................................................................104 Figure 52. 64 element 8x8 grid array SNR map using 64 receivers. ............................105 Figure 53. 64 element 8x8 grid...-factor maps for point combined array......................................................117 Figure 63. SENSE reconstructions using point combined array...................................118 Figure 64. Grid array geometry used for simulation...

Spence, Dan Kenrick

2007-09-17T23:59:59.000Z

25

The Infrared Jet in 3C31  

E-Print Network [OSTI]

We report the detection of infrared emission from the jet of the nearby FR I radio galaxy 3C 31. The jet was detected with the IRAC instrument on Spitzer at 4.5 micron, 5.8 micron, and 8.0 micron out to 30" (13 kpc) from the nucleus. We measure radio, infrared, optical, and X-ray fluxes in three regions along the jet determined by the infrared and X-ray morphology. Radio through X-ray spectra in these regions demonstrate that the emission can be interpreted as synchrotron emission from a broken power-law distribution of electron energies. We find significant differences in the high energy spectra with increasing distance from the nucleus. Specifically, the high energy slope increases from 0.86 to 1.72 from 1 kpc to 12 kpc along the jet, and the spectral break likewise increases in frequency along the jet from 10-100's of GHz to ~20 THz. Thus the ratio of IR to X-ray flux in the jet increases by at least an order of magnitude with increasing distance from the nucleus. We argue that these changes cannot simply ...

Lanz, Lauranne; Kraft, Ralph P; Birkinshaw, Mark; Lal, Dharam V; Forman, William R; Jones, Christine; Worrall, Diana M

2015-01-01T23:59:59.000Z

26

Array-conditioned deconvolution of multiple component teleseismic recordings  

E-Print Network [OSTI]

We investigate the applicability of an array-conditioned deconvolution technique, developed for analyzing borehole seismic exploration data, to teleseismic receiver functions and data preprocessing steps for scattered ...

Chen, C. -W.

2010-01-01T23:59:59.000Z

27

Space and power efficient hybrid counters array  

DOE Patents [OSTI]

A hybrid counter array device for counting events. The hybrid counter array includes a first counter portion comprising N counter devices, each counter device for receiving signals representing occurrences of events from an event source and providing a first count value corresponding to a lower order bits of the hybrid counter array. The hybrid counter array includes a second counter portion comprising a memory array device having N addressable memory locations in correspondence with the N counter devices, each addressable memory location for storing a second count value representing higher order bits of the hybrid counter array. A control device monitors each of the N counter devices of the first counter portion and initiates updating a value of a corresponding second count value stored at the corresponding addressable memory location in the second counter portion. Thus, a combination of the first and second count values provide an instantaneous measure of number of events received.

Gara, Alan G. (Mount Kisco, NY); Salapura, Valentina (Chappaqua, NY)

2010-03-30T23:59:59.000Z

28

Solar heat receiver  

DOE Patents [OSTI]

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.

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

1982-09-29T23:59:59.000Z

29

Molecular Gas in the Powerful Radio Galaxies 3C~31 and 3C~264: Major or Minor Mergers?  

E-Print Network [OSTI]

We report the detection of $^{12}$CO~($1 \\to 0$) and $^{12}$CO~($2 \\to 1$) emission from the central regions ($\\lesssim 5$--$10 {\\rm kpc}$) of the two powerful radio galaxies 3C~31 and 3C~264. Their individual CO emission exhibits a double-horned line profile that is characteristic of an inclined rotating disk with a central depression at the rising part of its rotation curve. The inferred disk or ring distributions of the molecular gas is consistent with the observed presence of dust disks or rings detected optically in the cores of both galaxies. For a CO to H$_2$ conversion factor similar to that of our Galaxy, the corresponding total mass in molecular hydrogen gas is $(1.3 \\pm 0.2) \\times 10^9 {\\rm M_{\\odot}}$ in 3C~31 and $(0.31 \\pm 0.06) \\times 10^9 {\\rm M_{\\odot}}$ in 3C~264. Despite their relatively large molecular-gas masses and other peculiarities, both 3C~31 and 3C~264, as well as many other powerful radio galaxies in the (revised) 3C catalog, are known to lie within the fundamental plane of normal elliptical galaxies. We reason that if their gas originates from the mergers of two gas-rich disk galaxies, as has been invoked to explain the molecular gas in other radio galaxies, then both 3C~31 and 3C~264 must have merged a long time (a few billion years or more) ago but their remnant elliptical galaxies only recently (last tens of millions of years or less) become active in radio. Instead, we argue that the cannibalism of gas-rich galaxies provides a simpler explanation for the origin of molecular gas in the elliptical hosts of radio galaxies. Given the transient nature of their observed disturbances, these galaxies probably become active in radio soon after the accretion event when sufficient molecular gas agglomerates in their nuclei.

J. Lim; S. Leon; F. Combes; Dinh-V-Trung

2000-11-28T23:59:59.000Z

30

Dish/stirling hybrid-receiver  

DOE Patents [OSTI]

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.

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

31

NBB Enclosed Particle Receiver  

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

rigorous NREL and recipient subcontracting processes. Goal: This project will develop a near-blackbody particle receiver and an integrated fluidized-bed heat exchanger to achieve...

32

STRUCTUREu DITERPENE ELUCIDATION FROM 1 3 C NMR  

E-Print Network [OSTI]

in natural product chemistry. There are many useful spectroscopic methods of getting information about pro- ducts chemistry. NMR spectroscopy is the best method for complete structure elucidation products (not proteins), only 1 H NMR and 1 3 C NMR spectroscopy, including combined methods such as 2D NMR

Dzeroski, Saso

33

Microwave Radiometer 3 Channel (MWR3C) Handbook  

SciTech Connect (OSTI)

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

Cadeddu, MP

2012-05-04T23:59:59.000Z

34

3, 871898, 2007 Changes in C3/C4  

E-Print Network [OSTI]

CPD 3, 871­898, 2007 Changes in C3/C4 vegetation in the Central Himalayas M. Mampuku et al. Title Printer-friendly Version Interactive Discussion EGU Clim. Past Discuss., 3, 871­898, 2007 www.clim-past-discuss.net/3/871/2007/ © Author(s) 2007. This work is licensed under a Creative Commons License. Climate

Boyer, Edmond

35

NBB Enclosed Particle Receiver  

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

receiver design and performance prediction (930). * M(T-1.2) Identify testing data on heat-transfer rate with wide operating conditions that can be used for heat-transfer...

36

Response of Nanocrystalline 3C Silicon Carbide to Heavy-Ion Irradiatio...  

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

Nanocrystalline 3C Silicon Carbide to Heavy-Ion Irradiation. Response of Nanocrystalline 3C Silicon Carbide to Heavy-Ion Irradiation. Abstract: Nanostructured materials are...

37

Combined photoelectron spectroscopy and ab initio study of the hypermetallic Al3C molecule  

E-Print Network [OSTI]

Combined photoelectron spectroscopy and ab initio study of the hypermetallic Al3C molecule February 1999 The chemical structure and bonding of the hypermetallic Al3C and Al3C species have been studied by photoelectron spectroscopy and ab initio calculations. Al3C is found to have a planar

Simons, Jack

38

Multitaper Array Processing Kathleen E. Wage  

E-Print Network [OSTI]

Multitaper Array Processing Kathleen E. Wage November 2007 Proceedings of the 41st Asilomar has fewer time snapshots to work with, and the result is often substantial degradation in perfor of reasons, including source and/or receiver motion, environmental fluctuations, and transient excitation

Wage, Kathleen

39

Multichannel homodyne receiver  

DOE Patents [OSTI]

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.

Landt, Jeremy A. (Los Alamos, NM)

1982-01-01T23:59:59.000Z

40

Multichannel homodyne receiver  

DOE Patents [OSTI]

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.

Landt, J.A.

1981-01-19T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

The dynamics and environmental impact of 3C452  

E-Print Network [OSTI]

We present a detailed analysis of a new XMM-Newton observation of the FRII radio galaxy 3C452 and its environment. We detect X-ray emission from the hot intragroup medium and measure its temperature as well as obtaining the surface brightness and pressure profiles. We provide evidence that 3C452 is currently heating its environment, measuring a temperature of $1.18\\pm0.11$ keV for the immediate environment of the radio source compared to $0.86^{+0.13}_{-0.05}$ keV for the outer environment. We also present evidence that the outer regions of the lobes are overpressured (internal pressure of $2.6\\times10^{-13}$ Pa and external pressure of $1.11\\pm{0.11}\\times10^{-13}$ Pa at the edge of the lobes) and therefore are driving a shock at the lobe edges (with a temperature which we constrain to be $1.7^{+0.9}_{-0.5}$ keV), while the inner regions of the lobes are underpressured and contracting. Taking into account the very large amount of energy stored in the lobes, we show that this relatively low-powered FRII radio...

Shelton, D L; Croston, J H

2011-01-01T23:59:59.000Z

42

Selective Electroless Nickel Plating of Particle Arrays on Polyelectrolyte Multilayers  

E-Print Network [OSTI]

Selective Electroless Nickel Plating of Particle Arrays on Polyelectrolyte Multilayers Ilsoon Lee Received June 30, 2003. Revised Manuscript Received September 25, 2003 Selective electroless nickel plating, it was demonstrated that selective electroless nickel plating on complex 3-D microstructures with submicron resolution

Lee, Ilsoon

43

Kazakhstan receiving acreage applications  

SciTech Connect (OSTI)

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.

Not Available

1995-01-09T23:59:59.000Z

44

The Expanded Very Large Array  

E-Print Network [OSTI]

In almost 30 years of operation, the Very Large Array (VLA) has proved to be a remarkably flexible and productive radio telescope. However, the basic capabilities of the VLA have changed little since it was designed. A major expansion utilizing modern technology is currently underway to improve the capabilities of the VLA by at least an order of magnitude in both sensitivity and in frequency coverage. The primary elements of the Expanded Very Large Array (EVLA) project include new or upgraded receivers for continuous frequency coverage from 1 to 50 GHz, new local oscillator, intermediate frequency, and wide bandwidth data transmission systems to carry signals with 16 GHz total bandwidth from each antenna, and a new digital correlator with the capability to process this bandwidth with an unprecedented number of frequency channels for an imaging array. Also included are a new monitor and control system and new software that will provide telescope ease of use. Scheduled for completion in 2012, the EVLA will prov...

Perley, R; Jackson, J; Butler, B; Carlson, B; Fort, D; Dewdney, P; Clark, B; Hayward, R; Durand, S; Revnell, M; McKinnon, M

2009-01-01T23:59:59.000Z

45

Atomic Computer Simulations of Defect Migration in 3C and 4H...  

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

Computer Simulations of Defect Migration in 3C and 4H-SiC. Atomic Computer Simulations of Defect Migration in 3C and 4H-SiC. Abstract: Knowledge of the migration of intrinsic point...

46

Wide-band coherent receiver development for enhanced surveillance  

SciTech Connect (OSTI)

Oak Ridge National Laboratory (ORNL) has been developing advanced coherent IR heterodyne receivers for plasma diagnostics in fusion reactors for over 20 years. Recent progress in wide band IR detectors and high speed electronics has significantly enhanced the measurement capabilities of coherent receivers. In addition, developments in new HgCdTe and quantum well IR photodetector (QWIP) focal plane arrays are providing the possibility of both active and passive coherent imaging. In this paper the authors discuss the implications of these new enabling technologies to the IR remote sensing community for enhanced surveillance. Coherent receivers, as opposed to direct or thermal detection, provide multiple dimensions of information about a scene or target in a single detector system. Combinations of range, velocity, temperature, and chemical species information are all available from a coherent heterodyne receiver. They present laboratory data showing measured noise equivalent power (NEP) of new QWIP detectors with heterodyne bandwidths greater than 7 GHz. For absorption measurements, a wide band coherent receiver provides the capability of looking between CO{sub 2} lines at off-resonance peaks and thus the measurement of lines normally inaccessible with conventional heterodyne or direct detection systems. Also described are differential absorption lidar (DIAL) and Doppler laboratory measurements using an 8 x 8 HgCdTe focal plane array demonstrating the snapshot capability of coherent receiver detector arrays for enhanced chemical plume and moving hardbody capture. Finally they discuss a variety of coherent receiver configurations that can suppress (or enhance) sensitivity of present active remote sensing systems to speckle, glint, and other measurement anomalies.

Simpson, M.L.; Richards, R.K.; Hutchinson, D.P.

1998-03-01T23:59:59.000Z

47

Compensated individually addressable array technology for human breast imaging  

DOE Patents [OSTI]

A method of forming broad bandwidth acoustic or microwave beams which encompass array design, array excitation, source signal preprocessing, and received signal postprocessing. This technique uses several different methods to achieve improvement over conventional array systems. These methods are: 1) individually addressable array elements; 2) digital-to-analog converters for the source signals; 3) inverse filtering from source precompensation; and 4) spectral extrapolation to expand the bandwidth of the received signals. The components of the system will be used as follows: 1) The individually addressable array allows scanning around and over an object, such as a human breast, without any moving parts. The elements of the array are broad bandwidth elements and efficient radiators, as well as detectors. 2) Digital-to-analog converters as the source signal generators allow virtually any radiated field to be created in the half-space in front of the array. 3) Preprocessing allows for corrections in the system, most notably in the response of the individual elements and in the ability to increase contrast and resolution of signal propagating through the medium under investigation. 4) Postprocessing allows the received broad bandwidth signals to be expanded in a process similar to analytic continuation. Used together, the system allows for compensation to create beams of any desired shape, control the wave fields generated to correct for medium differences, and improve contract and resolution in and through the medium.

Lewis, D. Kent (San Francisco, CA)

2003-01-01T23:59:59.000Z

48

Carbon nanotube nanoelectrode arrays  

DOE Patents [OSTI]

The present invention relates to microelectode arrays (MEAs), and more particularly to carbon nanotube nanoelectrode arrays (CNT-NEAs) for chemical and biological sensing, and methods of use. A nanoelectrode array includes a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end of the carbon nanotubes are attached to a catalyst substrate material so as to form the array with a pre-determined site density, wherein the carbon nanotubes are aligned with respect to one another within the array; an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer; a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and a metal wire attached to the catalyst substrate material.

Ren, Zhifeng (Newton, MA); Lin, Yuehe (Richland, WA); Yantasee, Wassana (Richland, WA); Liu, Guodong (Fargo, ND); Lu, Fang (Burlingame, CA); Tu, Yi (Camarillo, CA)

2008-11-18T23:59:59.000Z

49

Alignment method for solar collector arrays  

DOE Patents [OSTI]

The present invention is directed to an improved method for establishing camera fixture location for aligning mirrors on a solar collector array (SCA) comprising multiple mirror modules. The method aligns the mirrors on a module by comparing the location of the receiver image in photographs with the predicted theoretical receiver image location. To accurately align an entire SCA, a common reference is used for all of the individual module images within the SCA. The improved method can use relative pixel location information in digital photographs along with alignment fixture inclinometer data to calculate relative locations of the fixture between modules. The absolute locations are determined by minimizing alignment asymmetry for the SCA. The method inherently aligns all of the mirrors in an SCA to the receiver, even with receiver position and module-to-module alignment errors.

Driver, Jr., Richard B

2012-10-23T23:59:59.000Z

50

Focal plane array with modular pixel array components for scalability  

DOE Patents [OSTI]

A modular, scalable focal plane array is provided as an array of integrated circuit dice, wherein each die includes a given amount of modular pixel array circuitry. The array of dice effectively multiplies the amount of modular pixel array circuitry to produce a larger pixel array without increasing die size. Desired pixel pitch across the enlarged pixel array is preserved by forming die stacks with each pixel array circuitry die stacked on a separate die that contains the corresponding signal processing circuitry. Techniques for die stack interconnections and die stack placement are implemented to ensure that the desired pixel pitch is preserved across the enlarged pixel array.

Kay, Randolph R; Campbell, David V; Shinde, Subhash L; Rienstra, Jeffrey L; Serkland, Darwin K; Holmes, Michael L

2014-12-09T23:59:59.000Z

51

Array for detecting microbes  

DOE Patents [OSTI]

The present embodiments relate to an array system for detecting and identifying biomolecules and organisms. More specifically, the present embodiments relate to an array system comprising a microarray configured to simultaneously detect a plurality of organisms in a sample at a high confidence level.

Andersen, Gary L.; DeSantis, Todd D.

2014-07-08T23:59:59.000Z

52

SOUTH AFRICA'S MEERKAT ARRAY  

E-Print Network [OSTI]

SOUTH AFRICA'S MEERKAT ARRAY THE MEERKAT ARRAY, currently taking shape in South Africa's Karoo) is completed around 2024. Via MeerKAT, South Africa is playing a key role in design and technology developments at the engineering office in Cape Town, and at universities and technology companies across South Africa and Africa

Jarrett, Thomas H.

53

Microfabricated ion trap array  

DOE Patents [OSTI]

A microfabricated ion trap array, comprising a plurality of ion traps having an inner radius of order one micron, can be fabricated using surface micromachining techniques and materials known to the integrated circuits manufacturing and microelectromechanical systems industries. Micromachining methods enable batch fabrication, reduced manufacturing costs, dimensional and positional precision, and monolithic integration of massive arrays of ion traps with microscale ion generation and detection devices. Massive arraying enables the microscale ion traps to retain the resolution, sensitivity, and mass range advantages necessary for high chemical selectivity. The reduced electrode voltage enables integration of the microfabricated ion trap array with on-chip circuit-based rf operation and detection electronics (i.e., cell phone electronics). Therefore, the full performance advantages of the microfabricated ion trap array can be realized in truly field portable, handheld microanalysis systems.

Blain, Matthew G. (Albuquerque, NM); Fleming, James G. (Albuquerque, NM)

2006-12-26T23:59:59.000Z

54

Hanford Projects Receive Sustainability Awards  

Broader source: Energy.gov [DOE]

RICHLAND, WASH. Hanfords Department of Energy offices and their contractors received special recognition Tuesday for their part in promoting sustainability.

55

SHEAR WAVE SEISMIC STUDY COMPARING 9C3D SV AND SH IMAGES WITH 3C3D C-WAVE IMAGES  

SciTech Connect (OSTI)

The objective of this study was to compare the relative merits of shear-wave (S-wave) seismic data acquired with nine-component (9-C) technology and with three-component (3-C) technology. The original proposal was written as if the investigation would be restricted to a single 9-C seismic survey in southwest Kansas (the Ashland survey), on the basis of the assumption that both 9-C and 3-C S-wave images could be created from that one data set. The Ashland survey was designed as a 9-C seismic program. We found that although the acquisition geometry was adequate for 9-C data analysis, the source-receiver geometry did not allow 3-C data to be extracted on an equitable and competitive basis with 9-C data. To do a fair assessment of the relative value of 9-C and 3-C seismic S-wave data, we expanded the study beyond the Ashland survey and included multicomponent seismic data from surveys done in a variety of basins. These additional data were made available through the Bureau of Economic Geology, our research subcontractor. Bureau scientists have added theoretical analyses to this report that provide valuable insights into several key distinctions between 9-C and 3-C seismic data. These theoretical considerations about distinctions between 3-C and 9-C S-wave data are presented first, followed by a discussion of differences between processing 9-C common-midpoint data and 3-C common-conversion-point data. Examples of 9-C and 3-C data are illustrated and discussed in the last part of the report. The key findings of this study are that each S-wave mode (SH-SH, SV-SV, or PSV) involves a different subsurface illumination pattern and a different reflectivity behavior and that each mode senses a different Earth fabric along its propagation path because of the unique orientation of its particle-displacement vector. As a result of the distinct orientation of each mode's particle-displacement vector, one mode may react to a critical geologic condition in a more optimal way than do the other modes. A conclusion of the study is that 9-C seismic data contain more rock and fluid information and more sequence and facies information than do 3-C seismic data; 9-C data should therefore be acquired in multicomponent seismic programs whenever possible.

John Beecherl; Bob A. Hardage

2004-07-01T23:59:59.000Z

56

UWB delay and multiply receiver  

DOE Patents [OSTI]

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.

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

2013-09-10T23:59:59.000Z

57

Smart trigger logic for focal plane arrays  

DOE Patents [OSTI]

An electronic device includes a memory configured to receive data representing light intensity values from pixels in a focal plane array and a processor that analyzes the received data to determine which light values correspond to triggered pixels, where the triggered pixels are those pixels that meet a predefined set of criteria, and determines, for each triggered pixel, a set of neighbor pixels for which light intensity values are to be stored. The electronic device also includes a buffer that temporarily stores light intensity values for at least one previously processed row of pixels, so that when a triggered pixel is identified in a current row, light intensity values for the neighbor pixels in the previously processed row and for the triggered pixel are persistently stored, as well as a data transmitter that transmits the persistently stored light intensity values for the triggered and neighbor pixels to a data receiver.

Levy, James E; Campbell, David V; Holmes, Michael L; Lovejoy, Robert; Wojciechowski, Kenneth; Kay, Randolph R; Cavanaugh, William S; Gurrieri, Thomas M

2014-03-25T23:59:59.000Z

58

Expandable LED array interconnect  

DOE Patents [OSTI]

A light emitting device that can function as an array element in an expandable array of such devices. The light emitting device comprises a substrate that has a top surface and a plurality of edges. Input and output terminals are mounted to the top surface of the substrate. Both terminals comprise a plurality of contact pads disposed proximate to the edges of the substrate, allowing for easy access to both terminals from multiple edges of the substrate. A lighting element is mounted to the top surface of the substrate. The lighting element is connected between the input and output terminals. The contact pads provide multiple access points to the terminals which allow for greater flexibility in design when the devices are used as array elements in an expandable array.

Yuan, Thomas Cheng-Hsin; Keller, Bernd

2011-03-01T23:59:59.000Z

59

Intelligent field emission arrays  

E-Print Network [OSTI]

Field emission arrays (FEAs) have been studied extensively as potential electron sources for a number of vacuum microelectronic device applications. For most applications, temporal current stability and spatial current ...

Hong, Ching-yin, 1973-

2003-01-01T23:59:59.000Z

60

3C-SiC Films on Si for MEMS Applications: Mechanical Properties , G. Kravchenko2  

E-Print Network [OSTI]

diamond tip. These results indicate that polycrystalline SiC thin films are attractive for MEMS. In addition, poly-crystalline 3C- SiC was also grown on (100)Si so that a comparison with monocrystaline 3C-SiC, also grown on (100)Si, could be made. The mechanical properties of single crystal and polycrystalline 3

Volinsky, Alex A.

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149Speeding accessProposal Title: Community FINAL#ski

62

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, and 323 K.Office ofMay 8,EMSLREAC/TS | National40

63

DEFECT ASSESSMENT USING CONFORMABLE ARRAY DATA  

SciTech Connect (OSTI)

The conformable array data acquisition system consists of the array, the data acquisition and analysis hardware, and the data acquisition and analysis software. The following decisions were made in the development of the system. Array design decisions include the following: (a) The flexible array board will be approximately 8 by 12 inches square with the active coil section confined to a smaller 6-inch-square section at the center of the board. The outer edges of the board will be used for switching and other circuitry. (b) The diameter of the array coils will be approximately 0.375 inch (9.5 mm). Data acquisition strategy includes: (a) The corrosion spots will be mapped by successive interrogations of the active section of the array board. Approximately 10,000 samples will be acquired for each coil. The 10,000 readings will be averaged to produce one lower-noise value for each coil. This will be repeated for each coil in the array in a sequential manner. The total corrosion image for the sector will be built from the individual coil data. (b) Corrosion larger than the operational portion of the array board will be measured using a grid technique. Uniquely identified areas in the grid will overlay a corroded area, and data collected for each area will be connected by the display and assessment software to form a composite image for the corroded area. (c) Defect assessment will be invoked on the corrosion image by ''boxing'' selected areas on the color contour map. Software decisions consisted of selecting the appropriate LABVIEW modules running in a Windows XP operating system to obtain the required functionality. This third quarterly report of the project presents the activity and conclusions reached to date. Specifically, the design of the conformable array was completed and work was started on obtaining the data acquisition hardware. Southwest Research Institute (SwRI) and Clock Spring{reg_sign} staff met at the SwRI facilities in June 2003 to discuss the project. The Clock Spring representative was given the latest version of the data acquisition and analysis software for evaluation. Comments were received.

Alfred E. Crouch

2003-07-01T23:59:59.000Z

64

Project Profile: Direct Supercritical Carbon Dioxide Receiver...  

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

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

65

Multiplexing, scheduling, and multicasting strategies for antenna arrays in wireless networks  

E-Print Network [OSTI]

A transmitter antenna array has the ability to direct data simultaneously to multiple receivers within a wireless network, creating potential for a more integrated view of algorithmic system components. In this thesis, ...

Lopez, Michael J. (Michael John), 1972-

2002-01-01T23:59:59.000Z

66

Wave Interactions with Arrays of Bottom-Mounted Circular Cylinders: Investigation of Optical and Acoustical Analogies  

E-Print Network [OSTI]

Wave scattering by arrays of cylinders has received special attention by many authors and analytical solutions have been derived. The investigation of optical and acoustical analogies to the problem of interaction of water waves with rigid...

Baquet, Aldric

2010-10-12T23:59:59.000Z

67

Suction-recirculation device for stabilizing particle flows within a solar powered solid particle receiver  

DOE Patents [OSTI]

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.

Kolb, Gregory J. (Albuquerque, NM)

2012-02-07T23:59:59.000Z

68

Antenna Array Mutual Coupling Effects on Cellular CDMA Communication Systems  

E-Print Network [OSTI]

demands. One such technique is to increase capacity via digital beamforming and base station antenna and/or receiving, some of the energy that is primarily intended for one antenna ends up at the other and mutual impedances of a collection of two­port networks, such as antenna arrays. Using the mutual

Blostein, Steven D.

69

UWB communication receiver feedback loop  

DOE Patents [OSTI]

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.

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

70

E-Print Network 3.0 - avirulence locus avr3c Sample Search Results  

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

results for: avirulence locus avr3c Page: << < 1 2 3 4 5 > >> 1 Journal of Theoretical Biology 238 (2006) 780794 Epidemiology and disease-control under gene-for-gene Summary: , and...

71

A 3D-3C Reflection Seismic Survey and Data Integration to Identify...  

Office of Environmental Management (EM)

to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchhill Co., NV A 3D-3C Reflection Seismic Survey and Data...

72

RFID receiver apparatus and method  

DOE Patents [OSTI]

An RFID backscatter interrogator for transmitting data to an RFID tag, generating a carrier for the tag, and receiving data from the tag modulated onto the carrier, the interrogator including a single grounded-coplanar wave-guide circuit board and at least one surface mount integrated circuit supported by the circuit board.

Scott, Jeffrey Wayne (Pasco, WA)

2006-12-26T23:59:59.000Z

73

Accounts Receivable Western Michigan University  

E-Print Network [OSTI]

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

de Doncker, Elise

74

Accounts Receivable Western Michigan University  

E-Print Network [OSTI]

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

de Doncker, Elise

75

An asymmetrical synchrotron model for knots in the 3C 273 jet  

E-Print Network [OSTI]

To interpret the emissions of knots in the 3C 273 jet from radio to X-rays, we propose a synchrotron model: considering the shock compression effect, the injection spectra from a shock to upstream and downstream emission regions are asymmetric. Our model could well explain the spectral energy distributions (SED) of knots in the 3C 273 jet, and the predictions on the spectra of knots could be tested by future observations.

Liu, Wen-Po

2015-01-01T23:59:59.000Z

76

FINE-SCALE STRUCTURE OF THE QUASAR 3C 279 MEASURED WITH 1.3 mm VERY LONG BASELINE INTERFEROMETRY  

SciTech Connect (OSTI)

We report results from five day very long baseline interferometry observations of the well-known quasar 3C 279 at 1.3 mm (230 GHz) in 2011. The measured nonzero closure phases on triangles including stations in Arizona, California, and Hawaii indicate that the source structure is spatially resolved. We find an unusual inner jet direction at scales of {approx}1 pc extending along the northwest-southeast direction (P.A. = 127 Degree-Sign {+-} 3 Degree-Sign ), as opposed to other (previously) reported measurements on scales of a few parsecs showing inner jet direction extending to the southwest. The 1.3 mm structure corresponds closely with that observed in the central region of quasi-simultaneous super-resolution Very Long Baseline Array images at 7 mm. The closure phase changed significantly on the last day when compared with the rest of observations, indicating that the inner jet structure may be variable on daily timescales. The observed new direction of the inner jet shows inconsistency with the prediction of a class of jet precession models. Our observations indicate a brightness temperature of {approx}8 Multiplication-Sign 10{sup 10} K in the 1.3 mm core, much lower than that at centimeter wavelengths. Observations with better uv coverage and sensitivity in the coming years will allow the discrimination between different structure models and will provide direct images of the inner regions of the jet with 20-30 {mu}as (5-7 light months) resolution.

Lu Rusen; Fish, Vincent L.; Doeleman, Sheperd S.; Crew, Geoffrey; Cappallo, Roger J. [Massachusetts Institute of Technology, Haystack Observatory, Route 40, Westford, MA 01886 (United States); Akiyama, Kazunori; Honma, Mareki [National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo 181-8588 (Japan); Algaba, Juan C.; Ho, Paul T. P.; Inoue, Makoto [Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan, R.O.C. (China); Bower, Geoffrey C.; Dexter, Matt [Department of Astronomy, Radio Astronomy Laboratory, University of California Berkeley, 601 Campbell, Berkeley, CA 94720-3411 (United States); Brinkerink, Christiaan [Department of Astrophysics, IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500-GL Nijmegen (Netherlands); Chamberlin, Richard [Caltech Submillimeter Observatory, 111 Nowelo Street, Hilo, HI 96720 (United States); Freund, Robert [Arizona Radio Observatory, Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721-0065 (United States); Friberg, Per [James Clerk Maxwell Telescope, Joint Astronomy Centre, 660 North A'ohoku Place, University Park, Hilo, HI 96720 (United States); Gurwell, Mark A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Jorstad, Svetlana G. [Institute for Astrophysical Research, Boston University, Boston, MA 02215 (United States); Krichbaum, Thomas P. [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany); Loinard, Laurent, E-mail: rslu@haystack.mit.edu [Centro de Radiostronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, 58089 Morelia, Michoacan (Mexico); and others

2013-07-20T23:59:59.000Z

77

SAW correlator spread spectrum receiver  

DOE Patents [OSTI]

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.

Brocato, Robert W

2014-04-01T23:59:59.000Z

78

Digital-data receiver synchronization  

DOE Patents [OSTI]

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.

Smith, Stephen F.; Turner, Gary W.

2005-08-02T23:59:59.000Z

79

FIRST-PRINCIPLES CALCULATIONS OF CHARGE STATES AND FORMATION ENERGIES OF Mg TRANSMUTANT IN 3C-SIC  

SciTech Connect (OSTI)

To investigate the thermodynamic and kinetic properties of various transmutants in 3C-SiC using density functional theory.

Hu, Shenyang Y.; Setyawan, Wahyu; Jiang, Weilin; Henager, Charles H.; Kurtz, Richard J.

2014-03-31T23:59:59.000Z

80

Receiver designs for multiuser underwater acoustic communications  

E-Print Network [OSTI]

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

Cho, Steve E.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

A Low Noise Active Integrated Antenna Receiver for Monopulse Radar Applications  

E-Print Network [OSTI]

radiation pattern suitable for monopulse radar applications. Simulation and measurement methodology- polarization levels has been demonstrated. An FMCW radar transceiver using a quasi-Yagi antenna array has beenA Low Noise Active Integrated Antenna Receiver for Monopulse Radar Applications Sylvia Lin, Yongxi

Itoh, Tatsuo

82

UWB MISO Time Reversal With Energy Detector Receiver Over ISI Channels  

E-Print Network [OSTI]

UWB MISO Time Reversal With Energy Detector Receiver Over ISI Channels Nan Guo, John Q. Zhang investigates a multiple input single output (MISO) time reversal system for ultra-wideband (UWB) communication channel model for antenna array related study. Numerical results suggest that the proposed MISO time

Qiu, Robert Caiming

83

Solid state neutron detector array  

DOE Patents [OSTI]

A neutron detector array is capable of measuring a wide range of neutron fluxes. The array includes multiple semiconductor neutron detectors. Each detector has a semiconductor active region that is resistant to radiation damage. In one embodiment, the array preferably has a relatively small size, making it possible to place the array in confined locations. The ability of the array to detect a wide range of neutron fluxes is highly advantageous for many applications such as detecting neutron flux during start up, ramp up and full power of nuclear reactors. 7 figs.

Seidel, J.G.; Ruddy, F.H.; Brandt, C.D.; Dulloo, A.R.; Lott, R.G.; Sirianni, E.; Wilson, R.O.

1999-08-17T23:59:59.000Z

84

Solid state neutron detector array  

DOE Patents [OSTI]

A neutron detector array is capable of measuring a wide range of neutron fluxes. The array includes multiple semiconductor neutron detectors. Each detector has a semiconductor active region that is resistant to radiation damage. In one embodiment, the array preferably has a relatively small size, making it possible to place the array in confined locations. The ability of the array to detect a wide range of neutron fluxes is highly advantageous for many applications such as detecting neutron flux during start up, ramp up and full power of nuclear reactors.

Seidel, John G. (Pittsburgh, PA); Ruddy, Frank H. (Monroeville, PA); Brandt, Charles D. (Mount Lebanon, PA); Dulloo, Abdul R. (Pittsburgh, PA); Lott, Randy G. (Pittsburgh, PA); Sirianni, Ernest (Monroeville, PA); Wilson, Randall O. (Greensburg, PA)

1999-01-01T23:59:59.000Z

85

Carbon Nanotubes Based Nanoelectrode Arrays: Fabrication, Evaluation...  

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

Arrays: Fabrication, Evaluation and Application in Voltammetric Analysis. Carbon Nanotubes Based Nanoelectrode Arrays: Fabrication, Evaluation and Application in Voltammetric...

86

Solar array construction  

DOE Patents [OSTI]

An interconnect tab on each cell of a first set of circular solar cells connects that cell in series with an adjacent cell in the set. This set of cells is arranged in alternate columns and rows of an array and a second set of similar cells is arranged in the remaining alternate columns and rows of the array. Three interconnect tabs on each solar cell of the said second set are employed to connect the cells of the second set to one another, in series and to connect the cells of the second set to those of the first set in parallel. Some tabs (making parallel connections) connect the same surface regions of adjacent cells to one another and others (making series connections) connect a surface region of one cell to the opposite surface region of an adjacent cell; however, the tabs are so positioned that the array may be easily assembled by depositing the cells in a certain sequence and in proper orientation.

Crouthamel, Marvin S. (Pennsauken, NJ); Coyle, Peter J. (Oaklyn, NJ)

1982-01-01T23:59:59.000Z

87

Multi-tower line focus Fresnel array project  

SciTech Connect (OSTI)

As an alternative to conventional tracking solar thermal trough systems, one may use line focus Fresnel reflector systems. In a conventional Fresnel reflector design, each field of reflectors is directed to a single tower. However efficient systems of very high ground utilisation can be setup if a field of reflectors uses multiple receivers on different towers. This paper describes a line focus system, called the compact linear fresnel reflector system and a project to produce an initial 95 MWth solar array. The array will be used as a retrofit preheater for a coal fired generating plant.

Mills, D.R.; Morrison, G.; Pye, J.; Le Lievre, P. [Solar Heat & Power SHP Pty. Ltd., Sydney, NSW (Australia)

2006-02-15T23:59:59.000Z

88

Fe/Al2O3 C2H4 Hata mm/10 min  

E-Print Network [OSTI]

Fe/Al2O3 C2H4 () () () () () () () * () 1. (SWNT) SWNT (CVD) (CNT)[1] Hata mm/10 min SWNT (Super Growth)[2]Al2O3 Fe C2H4 SWNT Fe/Al2O3 C2H4 CVD SWNT CNT CNT 2 SiO2 Al2O3 20 (RBM) 1350 cm-1 (D-Band)Fe G/D RBM Fe SWNT Al 15 nm Fe 0.6 nm CVD TEM Fig. 3 3 nm SWNT

Maruyama, Shigeo

89

A CHANDRA SNAPSHOT SURVEY FOR 3C RADIO GALAXIES WITH REDSHIFTS BETWEEN 0.3 AND 0.5  

SciTech Connect (OSTI)

This paper contains an analysis of short Chandra observations of 19 3C sources with redshifts between 0.3 and 0.5 not previously observed in the X-rays. This sample is part of a project to obtain Chandra data for all of the extragalactic sources in the 3C catalog. Nuclear X-ray intensities as well as any X-ray emission associated with radio jet knots, hotspots, or lobes have been measured in three energy bands: soft, medium, and hard. Standard X-ray spectral analysis for the four brightest nuclei has also been performed. X-ray emission was detected for all the nuclei of the radio sources in the current sample with the exception of 3C 435A. There is one compact steep spectrum source while all the others are FR II radio galaxies. X-ray emission from two galaxy clusters (3C 19 and 3C 320), from six hotspots in four radio galaxies (3C 16, 3C 19, 3C 268.2, 3C 313), and extended X-ray emission on kiloparsec scales in 3C 187 and 3C 313, has been detected.

Massaro, F. [SLAC National Laboratory and Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, CA 94025 (United States)] [SLAC National Laboratory and Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, CA 94025 (United States); Harris, D. E.; Paggi, A. [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States)] [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Tremblay, G. R. [European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei Muenchen (Germany)] [European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei Muenchen (Germany); Liuzzo, E. [Istituto di Radioastronomia, INAF, via Gobetti 101, I-40129, Bologna (Italy)] [Istituto di Radioastronomia, INAF, via Gobetti 101, I-40129, Bologna (Italy); Bonafede, A. [Hamburger Sternwarte, Universitaet Hamburg, Gojenbergsweg 112, D-21029 Hamburg (Germany)] [Hamburger Sternwarte, Universitaet Hamburg, Gojenbergsweg 112, D-21029 Hamburg (Germany)

2013-05-01T23:59:59.000Z

90

High-frequency wave sources using Josephson-junction arrays  

SciTech Connect (OSTI)

Results from Josephson-junction arrays used as high-frequency wave sources are presented. Phase-locked Josephson-junction arrays having a large number of junctions were developed to meet the need for compact submillimeter-wave sources for use in such applications as satellite communications are receivers for radioastronomical observations. The design, fabrication processes, and measurement are discussed. Distributed arrays of 40 junctions in which all Josephson junctions are placed at wavelength intervals were fabricated and tested. Such arrays can deliver about 1 [mu]W of power into a 20-60 [Omega] load resistor in the frequency ranger from 100 to 500 GHz, the upper limit being set by the large loss of the superconducting microstrip. Compact arrays were designed and fabricated to eliminate the loss of the superconducting microstrip. Those arrays have also demonstrated an output power level about 1 [mu]W into a 15 [Omega] load from 100 GHz up to 620 GHz. Characteristics of the Josephson junction source, including the power level, impedance matching, the tunability, the radiation linewidth, and tuning rate (or frequency-modulation) are discussed.

Wan, Kelin.

1991-01-01T23:59:59.000Z

91

Data:B54b21de-3c63-405a-9ea9-f152c09b3c13 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onb5-dcc1fcffd1f2 No revision has38865d08 No revisionb6dbbdc091c No revision has been approved for this page.f152c09b3c13

92

EXPANDED VERY LARGE ARRAY DETECTION OF 36.2 GHz CLASS I METHANOL MASERS IN SAGITTARIUS A  

E-Print Network [OSTI]

We report on the interferometric detection of 36.2 GHz Class I methanol emission with the new 27-40 GHz Ka-band receivers available on the Expanded Very Large Array (EVLA). The brightness temperatures of the interferometric ...

Sjouwerman, Lornt O.

93

Multi-wavelength observations of 3C 279 during the extremely bright gamma-ray flare in 2014 March-April  

E-Print Network [OSTI]

The well studied blazar 3C 279 underwent a giant $\\gamma$-ray outburst in 2014 March-April. The measured $\\gamma$-ray flux (1.21 $\\pm$ 0.10 $\\times$ 10$^{-5}$ ph cm$^{-2}$ s$^{-1}$ in 0.1-300 GeV energy range) is the highest detected from 3C 279 by Fermi Large Area Telescope. Hour scale $\\gamma$-ray flux variability are observed, with a flux doubling time as short as 1.19 $\\pm$ 0.36 hours detected during one flare. The $\\gamma$-ray spectrum is found to be curved at peak of the flare suggesting low probability of detecting very high energy (VHE; E $>$ 100 GeV) emission, which is further confirmed by the Very Energetic Radiation Imaging Telescope Array System observations. The $\\gamma$-ray flux increased by more than an order in comparison to low activity state and the flare consists of multiple sub-structures having fast rise and slow decay profile. The flux enhancement is seen in all the wavebands though at a lesser extent compared to $\\gamma$-rays. During the flare, a considerable amount of the kinetic jet p...

Paliya, Vaidehi S; Stalin, C S

2015-01-01T23:59:59.000Z

94

Incidence of ischemic stroke according to income level among older people: the 3C study  

E-Print Network [OSTI]

1 Incidence of ischemic stroke according to income level among older people: the 3C study Olivier 26 25. Email: olivier.grimaud@ehesp.fr Abstract Background Stroke has been shown to follow a social between socioeconomic status and ischemic stroke risk amongst older people. Setting The Cities of Bordeaux

Paris-Sud XI, Université de

95

Pressure Balance between Thermal and Non-Thermal Plasmas in the 3C129 Cluster  

E-Print Network [OSTI]

With new Chandra observations of the cluster containing the two radio galaxies 3C129 and 3C129.1, we have made a fit to the X-ray surface brightness to obtain thermal pressures. VLA data at 1.4 GHz have been obtained to complement previous maps at 0.33 GHz and at 5 and 8 GHz. From these radio data, we are able to derive the minimum non-thermal pressure of various emitting volumes along the tail of 3C129 and in the lobes of 3C129.1. Under the assumption that the non-thermal plasma excludes significant thermal plasma, we may expect pressure balance for most features since ram pressure should be important only close to the cores of the galaxies. Since we find that the minimum non-thermal pressures are generally only a factor of a few below estimates of the ambient thermal pressure, we conclude that it is unlikely that relativistic protons contribute significantly to the total pressure. Reasonable contributions from low energy electrons and filling factors in the range 0.1 to 1 suffice to achieve pressure balance. Although we do not find strong signatures for the exclusion of hot gas from the radio structures, we find soft features near the cores of both galaxies suggestive of cool gas stripping and hard features associated with radio jets and possibly a leading bow shock.

D. E. Harris; H. Krawczynski

2003-02-10T23:59:59.000Z

96

NOVEL Al2O3:C,Mg FLUORESCENT NUCLEAR TRACK DETECTORS FOR PASSIVE NEUTRON DOSIMETRY  

E-Print Network [OSTI]

NOVEL Al2O3:C,Mg FLUORESCENT NUCLEAR TRACK DETECTORS FOR PASSIVE NEUTRON DOSIMETRY G. Jeff Sykora1 in the development of a fluorescent nuclear track detector (FNTD) for neutron and heavy charged particle dosimetry for neutron dosimetry because they have 100% n/g dis- crimination. For instance, CR-39 plastic nuclear track

97

Mechanical Properties of 3C-SiC Films for MEMS Applications Jayadeep Deva Reddy1  

E-Print Network [OSTI]

. A detailed study of the mechanical properties of single crystal and polycrystalline 3C-SiC films grown on Si substrates was performed by means of nanoindentation using a Berkovich diamond tip. The thickness of both the single and polycrystalline SiC films was around 1-2 m. Under indentation loads below 500 N both films

Volinsky, Alex A.

98

Nanoelectrode array for electrochemical analysis  

DOE Patents [OSTI]

A nanoelectrode array comprises a plurality of nanoelectrodes wherein the geometric dimensions of the electrode controls the electrochemical response, and the current density is independent of time. By combining a massive array of nanoelectrodes in parallel, the current signal can be amplified while still retaining the beneficial geometric advantages of nanoelectrodes. Such nanoelectrode arrays can be used in a sensor system for rapid, non-contaminating field analysis. For example, an array of suitably functionalized nanoelectrodes can be incorporated into a small, integrated sensor system that can identify many species rapidly and simultaneously under field conditions in high-resistivity water, without the need for chemical addition to increase conductivity.

Yelton, William G. (Sandia Park, NM); Siegal, Michael P. (Albuquerque, NM)

2009-12-01T23:59:59.000Z

99

Qproteome GlycoArray Handbook Qproteome GlycoArray Kit  

E-Print Network [OSTI]

Secondary Antibody 29 Drying Slides After Processing 33 #12;4 Qproteome GlycoArray Handbook 09/2005 Scanning Installation 37 Running GlycoArray Analysis Software 40 Interpreting the Glycoprotein Fingerprint 44 Evaluating wear a suitable lab coat, disposable gloves, and protective goggles. For more information, please

Lebendiker, Mario

100

Investigating the point seismic array concept with seismic rotation measurements.  

SciTech Connect (OSTI)

Spatially-distributed arrays of seismometers are often utilized to infer the speed and direction of incident seismic waves. Conventionally, individual seismometers of the array measure one or more orthogonal components of rectilinear particle motion (displacement, velocity, or acceleration). The present work demonstrates that measure of both the particle velocity vector and the particle rotation vector at a single point receiver yields sufficient information to discern the type (compressional or shear), speed, and direction of an incident plane seismic wave. Hence, the approach offers the intriguing possibility of dispensing with spatially-extended received arrays, with their many problematic deployment, maintenance, relocation, and post-acquisition data processing issues. This study outlines straightforward mathematical theory underlying the point seismic array concept, and implements a simple cross-correlation scanning algorithm for determining the azimuth of incident seismic waves from measured acceleration and rotation rate data. The algorithm is successfully applied to synthetic seismic data generated by an advanced finite-difference seismic wave propagation modeling algorithm. Application of the same azimuth scanning approach to data acquired at a site near Yucca Mountain, Nevada yields ambiguous, albeit encouraging, results. Practical issues associated with rotational seismometry are recognized as important, but are not addressed in this investigation.

Abbott, Robert E.; Aldridge, David Franklin

2009-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Light harvesting arrays  

DOE Patents [OSTI]

A light harvesting array useful for the manufacture of devices such as solar cells comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: X.sup.1.paren open-st.X.sup.m+1).sub.m (I) wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2, and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

Lindsey, Jonathan S. (Raleigh, NC)

2002-01-01T23:59:59.000Z

102

Data:34702ed8-2f91-4f3c-af4a-a423d3c483ad | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of48d9ff47edf3 Noc7e1a8ffe No869d7ced0c4aa77f45ad4a No4059736ce1f No revision862b6a0e9f3 No revisiond3c483ad No

103

Data:35865196-93f2-44fa-a3c5-e34c3c544265 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of48d9ff47edf3 Noc7e1a8ffe No869d7ced0c4aa77f45ad4ae-5b31d61e0d79 No0cad72d3 No revision has beene34c3c544265 No

104

Eight-Channel Head Array and Control System for Parallel Transmit/Receive Magnetic Resonance Imaging  

E-Print Network [OSTI]

Interest in magnetic resonance imaging (MRI) at high fields strengths (3 Tesla and above) is driven by the associated improvements in signal-to-noise ratio and spectral resolution. In practice, however, technical challenges prevent these benefits...

Moody, Katherine

2014-08-11T23:59:59.000Z

105

High performance 24 GHz CMOS phased array receivers with on-chip coupling characterization  

E-Print Network [OSTI]

micromixer with an integrated Marchand balun using standardgenerator and an RF Marchand balun, IEEE Mi- crow. Wirelessrace coupler [86, 87], a Marchand-type balun [88, 89] and a

Yu, Tiku

2009-01-01T23:59:59.000Z

106

A 16-Channel Receive Array Insert for Magnetic Resonance Imaging of the Breast at 7T  

E-Print Network [OSTI]

Breast cancer is the second leading cause of cancer death among females in the United States. Magnetic resonance imaging (MRI) has emerged as a powerful tool for detecting and evaluating the disease, with notable advantages over other modalities...

By, Samantha

2014-04-01T23:59:59.000Z

107

Visible Photoluminescence from Cubic (3C) Silicon Carbide Microdisks Coupled to High Quality Whispering Gallery Modes  

E-Print Network [OSTI]

We present the design, fabrication and characterization of cubic (3C) silicon carbide microdisk resonators with high quality factor modes at visible and near infrared wavelengths (600 - 950 nm). Whispering gallery modes with quality factors as high as 2,300 and corresponding mode volumes V ~ 2 ({\\lambda}/n)^3 are measured using laser scanning confocal microscopy at room temperature. We obtain excellent correspondence between transverse-magnetic (TM) and transverse-electric (TE) polarized resonances simulated using Finite Difference Time Domain (FDTD) method and those observed in experiment. These structures based on ensembles of optically active impurities in 3C-SiC resonators could play an important role in diverse applications of nonlinear and quantum photonics, including low power optical switching and quantum memories.

Radulaski, Marina; Mller, Kai; Lagoudakis, Konstantinos G; Zhang, Jingyuan Linda; Buckley, Sonia; Kelaita, Yousif A; Alassaad, Kassem; Ferro, Gabriel; Vu?kovi?, Jelena

2014-01-01T23:59:59.000Z

108

Visible Photoluminescence from Cubic (3C) Silicon Carbide Microdisks Coupled to High Quality Whispering Gallery Modes  

E-Print Network [OSTI]

We present the design, fabrication and characterization of cubic (3C) silicon carbide microdisk resonators with high quality factor modes at visible and near infrared wavelengths (600 - 950 nm). Whispering gallery modes with quality factors as high as 2,300 and corresponding mode volumes V ~ 2 ({\\lambda}/n)^3 are measured using laser scanning confocal microscopy at room temperature. We obtain excellent correspondence between transverse-magnetic (TM) and transverse-electric (TE) polarized resonances simulated using Finite Difference Time Domain (FDTD) method and those observed in experiment. These structures based on ensembles of optically active impurities in 3C-SiC resonators could play an important role in diverse applications of nonlinear and quantum photonics, including low power optical switching and quantum memories.

Marina Radulaski; Thomas M. Babinec; Kai Mller; Konstantinos G. Lagoudakis; Jingyuan Linda Zhang; Sonia Buckley; Yousif A. Kelaita; Kassem Alassaad; Gabriel Ferro; Jelena Vu?kovi?

2014-12-08T23:59:59.000Z

109

Method and apparatus for synthesis of arrays of DNA probes  

DOE Patents [OSTI]

The synthesis of arrays of DNA probes sequences, polypeptides, and the like is carried out using a patterning process on an active surface of a substrate. An image is projected onto the active surface of the substrate utilizing an image former that includes a light source that provides light to a micromirror device comprising an array of electronically addressable micromirrors, each of which can be selectively tilted between one of at least two positions. Projection optics receives the light reflected from the micromirrors along an optical axis and precisely images the micromirrors onto the active surface of the substrate, which may be used to activate the surface of the substrate. The first level of bases may then be applied to the substrate, followed by development steps, and subsequent exposure of the substrate utilizing a different pattern of micromirrors, with further repeats until the elements of a two dimensional array on the substrate surface have an appropriate base bound thereto. The micromirror array can be controlled in conjunction with a DNA synthesizer supplying appropriate reagents to a flow cell containing the active substrate to control the sequencing of images presented by the micromirror array in coordination of the reagents provided to the substrate.

Cerrina, Francesco (Madison, WI); Sussman, Michael R. (Madison, WI); Blattner, Frederick R. (Madison, WI); Singh-Gasson, Sangeet (Madison, WI); Green, Roland (Madison, WI)

2002-04-23T23:59:59.000Z

110

Photonic Crystal Cavities in Cubic (3C) Polytype Silicon Carbide Films  

E-Print Network [OSTI]

We present the design, fabrication, and characterization of high quality factor and small mode volume planar photonic crystal cavities from cubic (3C) thin films (thickness ~ 200 nm) of silicon carbide (SiC) grown epitaxially on a silicon substrate. We demonstrate cavity resonances across the telecommunications band, with wavelengths from 1,250 - 1,600 nm. Finally, we discuss possible applications in nonlinear optics, optical interconnects, and quantum information science.

Marina Radulaski; Thomas M. Babinec; Sonia Buckley; Armand Rundquist; J Provine; Kassem Alassaad; Gabriel Ferro; Jelena Vu?kovi?

2013-11-30T23:59:59.000Z

111

The Submillimeter Array Polarimeter  

E-Print Network [OSTI]

We describe the Submillimeter Array (SMA) Polarimeter, a polarization converter and feed multiplexer installed on the SMA. The polarimeter uses narrow-band quarter-wave plates to generate circular polarization sensitivity from the linearly-polarized SMA feeds. The wave plates are mounted in rotation stages under computer control so that the polarization handedness of each antenna is rapidly selectable. Positioning of the wave plates is found to be highly repeatable, better than 0.2 degrees. Although only a single polarization is detected at any time, all four cross correlations of left- and right-circular polarization are efficiently sampled on each baseline through coordinated switching of the antenna polarizations in Walsh function patterns. The initial set of anti-reflection coated quartz and sapphire wave plates allows polarimetry near 345 GHz; these plates have been have been used in observations between 325 and 350 GHz. The frequency-dependent cross-polarization of each antenna, largely due to the variation with frequency of the retardation phase of the single-element wave plates, can be measured precisely through observations of bright point sources. Such measurements indicate that the cross-polarization of each antenna is a few percent or smaller and stable, consistent with the expected frequency dependence and very small alignment errors. The polarimeter is now available for general use as a facility instrument of the SMA.

Daniel P. Marrone; Ramprasad Rao

2008-07-14T23:59:59.000Z

112

Brittle dynamic fracture of crystalline cubic silicon carbide ,,3C-SiC... via molecular dynamics simulation  

E-Print Network [OSTI]

Brittle dynamic fracture of crystalline cubic silicon carbide ,,3C-SiC... via molecular dynamics for three low-index crack surfaces, i.e., 110 , 111 , and 100 , in crystalline cubic silicon carbide 3C Institute of Physics. DOI: 10.1063/1.2135896 I. INTRODUCTION Potential applications of silicon carbide Si

Southern California, University of

113

Areal array jetting device for ball grid arrays  

SciTech Connect (OSTI)

Package designs for microelectronics devices have moved from through-hole to surface mount technology in order to increase the printed wiring board real estate available by utilizing both sides of the board. The traditional geometry for surface mount devices is peripheral arrays where the leads are on the edges of the device. As the technology drives towards high input/output (I/O) count (increasing number of leads) and smaller packages with finer pitch (less distance between peripheral leads), limitations on peripheral surface mount devices arise. A solution to the peripheral surface mount issue is to shift the leads to the area under the device. This scheme is called areal array packaging and is exemplified by the ball grid array (BGA) package. In a BGA package, the leads are on the bottom surface of the package in the form of an array of solder balls. The current practice of joining BGA packages to printed wiring boards involves a hierarchy of solder alloy compositions. A high melting temperature ball is typically used for standoff. A promising alternative to current methods is the use of jetting technology to perform monolithic solder ball attachment. This paper describes an areal array jetter that was designed and built to simultaneously jet arrays of solder balls directly onto BGA substrates.

Frear, D.R.; Yost, F.G.; Schmale, D.T.; Essien, M.

1997-08-01T23:59:59.000Z

114

Localization in active incommensurate arrays  

E-Print Network [OSTI]

In a dissipationless linear lattice, spatial disorder or incommensurate modulation induce localization of the lattice eigenstates and block spreading of wave packets. Additionally, incommensurate arrays allow for the metal-insulator transition at a finite modulation amplitude already in one dimension. The addition of nonlinearity to the lattice Hamiltonian causes interaction between the eigenstates, which results in a slow packet spreading. We go beyond the dissipationless limit and consider nonlinear quasi-periodic arrays that are subjected to the dissipative losses and energy pumping. We find that there is a finite excitation of oscillations threshold in both metallic and insulating regimes. Moreover, excitation in the metallic and weakly insulating regime displays features of the second order phase transition to global oscillations, in contrast to disordered arrays. The Anderson attractor regime is recovered only in the limit of strong localization. The identified transition, and the further onset of chaos and synchronization can be potentially realized with polariton condensates lattices and cavity-QED arrays.

T. V. Laptyeva; S. V. Denisov; G. V. Osipov; M. V. Ivanchenko

2014-12-01T23:59:59.000Z

115

The Murchison Widefield Array Correlator  

E-Print Network [OSTI]

The Murchison Widefield Array (MWA) is a Square Kilometre Array (SKA) Precursor. The telescope is located at the Murchison Radio--astronomy Observatory (MRO) in Western Australia (WA). The MWA consists of 4096 dipoles arranged into 128 dual polarisation aperture arrays forming a connected element interferometer that cross-correlates signals from all 256 inputs. A hybrid approach to the correlation task is employed, with some processing stages being performed by bespoke hardware, based on Field Programmable Gate Arrays (FPGAs), and others by Graphics Processing Units (GPUs) housed in general purpose rack mounted servers. The correlation capability required is approximately 8 TFLOPS (Tera FLoating point Operations Per Second). The MWA has commenced operations and the correlator is generating 8.3 TB/day of correlation products, that are subsequently transferred 700 km from the MRO to Perth (WA) in real-time for storage and offline processing. In this paper we outline the correlator design, signal path, and proce...

Ord, S M; Emrich, D; Pallot, D; Wayth, R B; Clark, M A; Tremblay, S E; Arcus, W; Barnes, D; Bell, M; Bernardi, G; Bhat, N D R; Bowman, J D; Briggs, F; Bunton, J D; Cappallo, R J; Corey, B E; Deshpande, A A; deSouza, L; Ewell-Wice, A; Feng, L; Goeke, R; Greenhill, L J; Hazelton, B J; Herne, D; Hewitt, J N; Hindson, L; Hurley-Walker, H; Jacobs, D; Johnston-Hollitt, M; Kaplan, D L; Kasper, J C; Kincaid, B B; Koenig, R; Kratzenberg, E; Kudryavtseva, N; Lenc, E; Lonsdale, C J; Lynch, M J; McKinley, B; McWhirter, S R; Mitchell, D A; Morales, M F; Morgan, E; Oberoi, D; Offringa, A; Pathikulangara, J; Pindor, B; Prabu, T; Procopio, P; Remillard, R A; Riding, J; Rogers, A E E; Roshi, A; Salah, J E; Sault, R J; Shankar, N Udaya; Srivani, K S; Stevens, J; Subrahmanyan, R; Tingay, S J; Waterson, M; Webster, R L; Whitney, A R; Williams, A; Williams, C L; Wyithe, J S B

2015-01-01T23:59:59.000Z

116

Digitally Assisted Multi-Channel Receivers  

E-Print Network [OSTI]

-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...

Pentakota, Krishna Anand Santosh Spikanth

2011-10-21T23:59:59.000Z

117

Duality in Josephson Junction Arrays  

E-Print Network [OSTI]

Various properties of mesoscopic two-dimensional Josephson junction arrays are reviewed. Particular attention is paid to structure of the topological excitations, charges and vortices, which are shown to be dual to each other. This duality persists in the presence of external magnetic fields and offset charges, which influence vortices and charges in an equivalent way. A double-layer junction array is also considered, where an even further reaching duality is discovered.

Ya. M. Blanter; Rosario Fazio; Gerd Schoen

1997-01-30T23:59:59.000Z

118

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.

119

Sandia National Laboratories: Sandian's Receive Hydrogen and...  

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

Award Sandian's Receive Hydrogen and Fuel Cell Program Achievement Award Wind Generator Modeling SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter...

120

Connecticut Weatherization Project Improves Lives, Receives National...  

Energy Savers [EERE]

Lives, Receives National Recognition May 6, 2014 - 12:24pm Addthis Donna Hawkins Technology Transfer Specialist, Weatherization Assistance Program Harris Walker Communications...

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

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...

122

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...

123

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...

124

Excitation and Disruption of a Giant Molecular Cloud by the Supernova Remnant 3C391  

E-Print Network [OSTI]

Using the IRAM 30-m telescope, we observed the supernova remnant 3C 391 (G31.9+0.0) and its surroundings in the CO(2-1), HCO+(1-0), CS(2-1), CS(3-2), and CS(5-4) lines. The ambient molecular gas at the distance (9 kpc) of the remnant comprises a giant molecular cloud whose edge is closely parallel to a ridge of bright non-thermal radio continuum, which evidently delineates the blast-wave into the cloud. We found that in a small (0.6 pc) portion of the radio shell, the molecular line profiles consist of a narrow (2 km/s) component, plus a very wide (> 20 km/s) component. Both spectral components peak within 20" of a previously-detected OH 1720 MHz maser. We name this source 3C 391:BML (broad molecular line); it provides a new laboratory, similar to IC 443 but on a larger scale, to study shock interactions with dense molecular gas. The wide spectral component is relatively brighter in the higher-excitation lines. We interpret the wide spectral component as post-shock gas, either smoothly accelerated or partially dissociated and reformed behind the shock. The narrow component is either the pre-shock gas or cold gas reformed behind a fully dissociative shock. Using the 3 observed CS lines, we measured the temperature, CS column density, and H2 volume density in a dense clump in the parent molecular cloud as well as the wide-line and narrow-line portions of the shocked clump. The physical conditions of the narrow-line gas are comparable to the highest-density clumps in the giant molecular cloud, while the wide-line gas is both warmer and denser. The mass of compressed gas in 3C 391:BML is high enough that its self-gravity is significant, and eventually it could form one or several stars.

William T. Reach; Jeonghee Rho

1998-07-28T23:59:59.000Z

125

Atomic configuration of irradiation-induced planar defects in 3C-SiC  

SciTech Connect (OSTI)

The atomic configuration of irradiation-induced planar defects in single crystal 3C-SiC at high irradiation temperatures was shown in this research. A spherical aberration corrected scanning transmission electron microscope provided images of individual silicon and carbon atoms by the annular bright-field (ABF) method. Two types of irradiation-induced planar defects were observed in the ABF images including the extrinsic stacking fault loop with two offset Si-C bilayers and the intrinsic stacking fault loop with one offset Si-C bilayer. The results are in good agreement with images simulated under identical conditions.

Lin, Y. R. [Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); National Synchrotron Radiation Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan (China); Ho, C. Y. [Institute of Nuclear Engineering and Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); Hsieh, C. Y.; Chang, M. T.; Lo, S. C. [Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan (China); Chen, F. R. [Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); Kai, J. J., E-mail: ceer0001@gmail.com [Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); Institute of Nuclear Engineering and Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China)

2014-03-24T23:59:59.000Z

126

Transition temperatures and vacancies in superconducting Rb{sub 3}C{sub 60}  

SciTech Connect (OSTI)

We have studied the role of alkali-metal vacancies in the structure and superconductivity in nominal Rb{sub 3}C{sub 60} through preparation of samples with different alkali-metal loadings and annealing temperatures, to search for the possible role of nonstoichiometry in superconductivity. We find sample-to-sample variations of {approx}1 K in the superconducting transition temperature, but this does not correlate with vacancy concentration. We conclude that a model of electronic structure of alkali-metal fullerenes based on proximity to a Mott-Hubbard transition at integer doping is not applicable.

Huq, Ashfia; Stephens, Peter W. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800 (United States)

2005-09-01T23:59:59.000Z

127

Fast algorithms for triangular Josephson junction arrays  

SciTech Connect (OSTI)

We develop fast algorithms for the numerical study of two-dimensional triangular Josephson junction arrays. The Dirac bra-ket formalism is introduced in the context of such arrays. We note that triangular arrays can have both hexagonal and rectangular periodicity and develop algorithms for each. Boundaries are next introduced and fast algorithms for finite arrays are developed. 40 refs., 4 figs.

Datta, S.; Sahdev, D. [Indian Institute of Technology, Kanpur (India)] [Indian Institute of Technology, Kanpur (India)

1997-04-01T23:59:59.000Z

128

Liquid cooled fiber thermal radiation receiver  

DOE Patents [OSTI]

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.

Butler, B.L.

1985-03-29T23:59:59.000Z

129

CHANDRA OBSERVATIONS OF 3C RADIO SOURCES WITH z < 0.3. II. COMPLETING THE SNAPSHOT SURVEY  

SciTech Connect (OSTI)

We report on the second round of Chandra observations of the 3C snapshot survey developed to observe the complete sample of 3C radio sources with z < 0.3 for 8 ks each. In the first paper, we illustrated the basic data reduction and analysis procedures performed for the 30 sources of the 3C sample observed during Chandra Cycle 9, while here we present the data for the remaining 27 sources observed during Cycle 12. We measured the X-ray intensity of the nuclei and of any radio hot spots and jet features with associated X-ray emission. X-ray fluxes in three energy bands, i.e., soft, medium, and hard, for all the sources analyzed are also reported. For the stronger nuclei, we also applied the standard spectral analysis, which provides the best-fit values of the X-ray spectral index and absorbing column density. In addition, a detailed analysis of bright X-ray nuclei that could be affected by pile-up has been performed. X-ray emission was detected for all the nuclei of the radio sources in our sample except for 3C 319. Among the current sample, there are two compact steep spectrum radio sources, two broad-line radio galaxies, and one wide angle tail radio galaxy, 3C 89, hosted in a cluster of galaxies clearly visible in our Chandra snapshot observation. In addition, we also detected soft X-ray emission arising from the galaxy cluster surrounding 3C 196.1. Finally, X-ray emission from hot spots has been found in three FR II radio sources and, in the case of 3C 459, we also report the detection of X-ray emission associated with the eastern radio lobe as well as X-ray emission cospatial with radio jets in 3C 29 and 3C 402.

Massaro, F. [SLAC National Laboratory and Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, CA 94025 (United States); Tremblay, G. R. [European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei Muenchen (Germany); Harris, D. E.; O'Dea, C. P. [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Kharb, P.; Axon, D. [Department of Physics, Rochester Institute of Technology, Carlson Center for Imaging Science 76-3144, 84 Lomb Memorial Dr., Rochester, NY 14623 (United States); Balmaverde, B.; Capetti, A. [INAF-Osservatorio Astrofisico di Torino, Strada Osservatorio 20, I-10025 Pino Torinese (Italy); Baum, S. A. [Carlson Center for Imaging Science 76-3144, 84 Lomb Memorial Dr., Rochester, NY 14623 (United States); Chiaberge, M.; Macchetto, F. D.; Sparks, W. [Space Telescope Science Institute, 3700 San Martine Drive, Baltimore, MD 21218 (United States); Gilli, R. [INAF-Osservatorio Astronomico di Bologna, Via Ranzani 1, I-40127 Bologna (Italy); Giovannini, G. [INAF-Istituto di Radioastronomia di Bologna, Via Gobetti 101, I-40129 Bologna (Italy); Grandi, P.; Torresi, E. [INAF-IASF-Istituto di Astrofisica Spaziale e fisica Cosmica di Bologna, Via P. Gobetti 101, I-40129 Bologna (Italy); Risaliti, G. [INAF-Osservatorio Astronomico di Arcetri, Largo E. Fermi 5, I-50125 Firenze (Italy)

2012-12-15T23:59:59.000Z

130

Structure and Properties of Magnetic (Co, Fe, Fe{sub 3}C and Ni) Carbon Beads  

SciTech Connect (OSTI)

Nanoparticles exhibit unique physical properties due to the surface or quantum-size effects. Particular attention has been focused on magnetic nanoparticles and substantial progress has been done in this field. In this work magnetic composites, consisting of elementary metals or carbides nanocrystallites, stabilized in carbon matrix, were prepared by the procedure comprising formation of appropriate metal acrylamide complexes, followed by frontal polymerization and pyrolysis of the polymer at various temperatures. Application of frontal polymerization and further pyrolysis enables formation of composite beads consisting of Co, Fe, Fe{sub 3}C or Ni nanocrystallites stabilized in carbon matrix. It was found that the lowest pyrolysis temperature, which enables the production of metallic nanocrystallites, was 673 K for Co and Ni, and 773 K for Fe. The magnetic properties of the beads, percentage of the metallic component, their composition and shape depended on the pyrolysis temperature. Extracts on the basis of composites containing Fe{sub 3}C showed no cytotoxicity, whereas those containing Co and Ni exhibited negligible cytotoxicity up to concentrations of 6.25 mg/ml.

Leonowicz, Marcin; Izydorzak, Marta [Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw (Poland); Pomogailo, Anatolii D.; Dzhardimalieva, Gulzhian I. [Institute of Chemical Physics RAS, Chernogolovka (Russian Federation)

2010-12-02T23:59:59.000Z

131

DISCOVERY OF GIANT RELIC RADIO LOBES STRADDLING THE CLASSICAL DOUBLE RADIO GALAXY 3C452  

SciTech Connect (OSTI)

We report the discovery of a pair of megaparsec size radio lobes of extremely steep spectrum straddling the well-known classical double radio source 3C452. The existence of such fossil lobes was unexpected since for the past several decades this powerful radio galaxy has been regarded as a textbook example of an edge-brightened double radio source of Fanaroff-Riley type II (FR II), which we now show to be a bona fide ''double-double'' radio galaxy (DDRG). Thus, 3C452 presents a uniquely robust example of recurrent nuclear activity in which the restarted jets are expanding non-relativistically within the relic synchrotron plasma from an earlier active phase and hence the inner double fed by them has evolved into a perfectly normal FR II radio source. This situation contrasts markedly with the strikingly narrow inner doubles observed in a few other DDRGs that have been interpreted in terms of compression of the synchrotron plasma of the relic outer lobes at the relativistic bow-shocks driven by the near ballistic propagation of the two inner jets through the relic plasma. A key ramification of this finding is that it cautions against the currently widespread use of FR II classical double radio sources for testing cosmological models and unification schemes for active galactic nuclei.

Sirothia, S. K.; Gopal-Krishna [National Centre for Radio Astrophysics, TIFR, Post Bag No. 3, Pune University Campus, Ganeshkhind, Pune 411 007 (India); Wiita, Paul J., E-mail: sirothia@ncra.tifr.res.in, E-mail: krishna@ncra.tifr.res.in, E-mail: wiitap@tcnj.edu [Department of Physics, College of New Jersey, P.O. Box 7718, Ewing, NJ 08628 (United States)

2013-03-01T23:59:59.000Z

132

Microwave coupling of frequency-locked Josephson junction arrays  

SciTech Connect (OSTI)

A high temperature superconducting YBa{sub 2}Cu{sub 3}O{sub y} array of five Josephson junctions designed with additional coupling lines has been developed to demonstrate the effects of frequency locking and impedance matching for applications such as oscillators, mixers, and detectors. The Josephson self-radiation power was directly detected by a superheterodyne receiver, and Shapiro steps were also measured. The Josephson self-radiation properties reveal good quality of phase locking and microwave coupling with external circuits. The maximum self-radiation power of our array is about 50 pW which is several ten times higher than that of a single Josephson junction, and its peak point exactly satisfies the Josephson current-voltage relation. The Shapiro-step measurements show that the behavior of current-voltage curve depends on the effective inductance of coupling lines which affects the total impedance of Josephson junction array and microwave coupling. The Josephson oscillation frequency was obtained up to about 880 GHz which is 73{percent} of the maximum available frequency calculated from the characteristic voltage of the Josephson junctions. Experimental results show that this type of Josephson junction array can improve the Josephson self-radiation power and increase the maximum detectable frequency. {copyright} {ital 1997 American Institute of Physics.}

Song, I.; Eom, Y.; Park, G. [Department of Physics, Sogang University, Seoul 100-611 (Korea)] [Department of Physics, Sogang University, Seoul 100-611 (Korea); Lee, E.; Park, S. [Electronic Materials Laboratory, Samsung Advanced Institute of Technology, Suwon (Korea)] [Electronic Materials Laboratory, Samsung Advanced Institute of Technology, Suwon (Korea)

1997-06-01T23:59:59.000Z

133

M&A For Lithography Of Sparse Arrays Of Sub-Micrometer Features  

DOE Patents [OSTI]

Methods and apparatuses are disclosed for the exposure of sparse hole and/or mesa arrays with line:space ratios of 1:3 or greater and sub-micrometer hole and/or mesa diameters in a layer of photosensitive material atop a layered material. Methods disclosed include: double exposure interferometric lithography pairs in which only those areas near the overlapping maxima of each single-period exposure pair receive a clearing exposure dose; double interferometric lithography exposure pairs with additional processing steps to transfer the array from a first single-period interferometric lithography exposure pair into an intermediate mask layer and a second single-period interferometric lithography exposure to further select a subset of the first array of holes; a double exposure of a single period interferometric lithography exposure pair to define a dense array of sub-micrometer holes and an optical lithography exposure in which only those holes near maxima of both exposures receive a clearing exposure dose; combination of a single-period interferometric exposure pair, processing to transfer resulting dense array of sub-micrometer holes into an intermediate etch mask, and an optical lithography exposure to select a subset of initial array to form a sparse array; combination of an optical exposure, transfer of exposure pattern into an intermediate mask layer, and a single-period interferometric lithography exposure pair; three-beam interferometric exposure pairs to form sparse arrays of sub-micrometer holes; five- and four-beam interferometric exposures to form a sparse array of sub-micrometer holes in a single exposure. Apparatuses disclosed include arrangements for the three-beam, five-beam and four-beam interferometric exposures.

Brueck, Steven R.J. (Albuquerque, NM); Chen, Xiaolan (Albuquerque, NM); Zaidi, Saleem (Albuquerque, NM); Devine, Daniel J. (Los Gatos, CA)

1998-06-02T23:59:59.000Z

134

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...

135

An IC/CMB interpretation for the large-scale jet X-ray emission of 3C 273  

E-Print Network [OSTI]

We present that the model of inverse Compton scattering of cosmic microwave background photons (IC/CMB) could well explain the large-scale jet X-ray radiation of 3C 273, and does not violate new Fermi observations. For the individual knots, the synchrotron spectrum of the low-energy electrons responsible for the IC/CMB X-ray emission may be different from the extrapolation of the 10GHz radio spectrum of knots. Based on the IC/CMB model for the 3C 273 large-scale jet, the Fermi observations may mainly come from the small-scale jet of 3C 273 (i.e., the core). Future observations could examine our interpretation on the spectral energy distributions (SED) of knots and large-scale jet in 3C 273.

Liu, Wen-Po

2015-01-01T23:59:59.000Z

136

Regular Arrays of Monodisperse Platinum/Erbium Disilicide Core-Shell  

E-Print Network [OSTI]

arrays with monodisperse size, shape, and interparticle spacing using a low-cost and high, 2006; Revised Manuscript Received July 8, 2006 ABSTRACT We have developed a process for fabricating properties of metal nanoparticles (NPs) and nanowires (NWs): the fabrication of high-density nanostructure

Kim, Sehun

137

CX-010245: Categorical Exclusion Determination | Department of...  

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

Determination Development of a 300 Degree, 200 Level, 3C Fiber Optic Downhole Seismic Receiver Array for Surveying and Monitoring of Geothermal Reservoirs CX(s) Applied:...

138

CX-007886: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination Development of a 300C, 200 level, 3C Fiber Optic Downhole Seismic Receiver Array for Surveying and Monitoring of Geothermal Reservoirs CX(s) Applied:...

139

Investigation of the transition layer in 3C-SiC/6H-SiC heterostructures  

SciTech Connect (OSTI)

Transmission electron microscopy and the cathodoluminescence method are used to study the transition region in 3C-SiC/6H-SiC heterostructures. It is shown that this region is, as a rule, constituted by alternating 3C-SiC and 6H-SiC layers with the possible inclusion of other silicon carbide polytypes. An assumption is made that this structure of the transition region can be explained in terms of the model of spinodal decomposition.

Lebedev, A. A.; Zamorianskaya, M. V.; Davydov, S. Yu.; Kirilenko, D. A.; Lebedev, S. P., E-mail: shura.lebe@mail.ioffe.ru; Sorokin, L. M.; Shustov, D. B.; Scheglov, M. P. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2013-11-15T23:59:59.000Z

140

GL(3,C) Invariance of Type B 3-fold Supersymmetric Systems  

E-Print Network [OSTI]

Type B 3-fold supersymmetry is a necessary and sufficient condition for a quantum Hamiltonian to admit three linearly independent local solutions in closed form. We show that any such a system is invariant under GL(3,C) homogeneous linear transformations. In particular, we prove explicitly that the parameter space is transformed as an adjoint representation of it and that every coefficient of the characteristic polynomial appeared in 3-fold superalgebra is algebraic invariants. In the type A case, it includes as a subgroup the GL(2,C) linear fractional transformation studied in the literature. We argue that any N-fold supersymmetric system has a GL(N,C) invariance for an arbitrary integral N.

Tanaka, Toshiaki

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

GL(3,C) Invariance of Type B 3-fold Supersymmetric Systems  

E-Print Network [OSTI]

Type B 3-fold supersymmetry is a necessary and sufficient condition for a quantum Hamiltonian to admit three linearly independent local solutions in closed form. We show that any such a system is invariant under GL(3,C) homogeneous linear transformations. In particular, we prove explicitly that the parameter space is transformed as an adjoint representation of it and that every coefficient of the characteristic polynomial appeared in 3-fold superalgebra is algebraic invariants. In the type A case, it includes as a subgroup the GL(2,C) linear fractional transformation studied in the literature. We argue that any N-fold supersymmetric system has a GL(N,C) invariance for an arbitrary integral N.

Toshiaki Tanaka

2013-12-03T23:59:59.000Z

142

GL(3,C) invariance of type B 3-fold supersymmetric systems  

SciTech Connect (OSTI)

Type B 3-fold supersymmetry is a necessary and sufficient condition for a quantum Hamiltonian to admit three linearly independent local solutions in closed form. We show that any such a system is invariant under GL(3,C) homogeneous linear transformations. In particular, we prove explicitly that the parameter space is transformed as an adjoint representation of it and that every coefficient of the characteristic polynomial appeared in 3-fold superalgebra is algebraic invariants. In the type A case, it includes as a subgroup the GL(2,C) projective transformation studied in the literature. We argue that any N-fold supersymmetric system has a GL(N,C) invariance for an arbitrary integral N.

Tanaka, Toshiaki, E-mail: tanaka.toshiaki@ocha.ac.jp [Department of Physics, Faculty of Science, Ochanomizu University, 2-1-1 Ohtsuka, Bunkyo-ku, Tokyo 112-8610 (Japan)] [Department of Physics, Faculty of Science, Ochanomizu University, 2-1-1 Ohtsuka, Bunkyo-ku, Tokyo 112-8610 (Japan)

2014-02-15T23:59:59.000Z

143

Overdensity of X-Ray sources near 3C 295: a candidate filament  

E-Print Network [OSTI]

We present a statistical analysis of the Chandra observation of the source field around the 3C 295 galaxy cluster (z=0.46) aimed at the search for clustering of X-ray sources. Three different methods of analysis, namely a chip by chip logN-logS, a two dimensional Kolmogorov-Smirnov test, and the angular correlation function (ACF) show a strong overdensity of sources in the North-East of the field. In particular, the ACF shows a clear signal on scales of 0.5 - 5 arcmin. This correlation angle is > 2 times higher than that of a sample of 8 ACIS-I field at the 2.5 sigma confidence level. If this overdensity is spatially associated to the cluster, we are observing a 'filament' of the large scale structure of the Universe. We discuss some first results that seem to indicate such an association.

V. D'Elia; F. Fiore; F. Cocchia

2004-07-22T23:59:59.000Z

144

Electric Charge Quantization in SU(3)_C X SU(3)_L X U(1)_X Models  

E-Print Network [OSTI]

Basing on the general photon eigenstate and the anomaly cancelation, we have naturally explained the electric charge quantization in two models based on the SU(3)_C X SU(3)_L X U(1)_X gauge group, namely in the minimal model and in the model with right-handed neutrinos. In addition, we have shown that the electric charges of the proton and of the electron are opposite; and the same happens with the neutron and the neutrino. We argue that the electric charge quantization is not dependent on the classical constraints on generating mass to the fermions, but it is related closely with the generation number problem. In fact, both problems are properly solved as the direct consequences of the fermion content under the anomaly free conditions.

Phung Van Dong; Hoang Ngoc Long

2005-07-13T23:59:59.000Z

145

Bound States of (Anti-)Scalar-Quarks in SU(3)c Lattice QCD  

SciTech Connect (OSTI)

Light scalar-quarks {phi} (colored scalar particles or idealized diquarks) and their color-singlet hadronic states are studied with quenched SU(3)c lattice QCD in terms of mass generation. We investigate 'scalar-quark mesons' {phi}{dagger}{phi} and 'scalar-quark baryons' {phi}{phi}{phi} as the bound states of scalar-quarks {phi}. We also investigate the bound states of scalar-quarks {phi} and quarks {psi}, i.e., {phi}{dagger}{psi}, {psi}{psi}{phi} and {phi}{phi}{psi}, which we name 'chimera hadrons'. All the new-type hadrons including {phi} are found to have a large mass due to large quantum corrections by gluons, even for zero bare scalar-quark mass m{phi} = 0 at a-1 {approx} 1GeV. We conjecture that all colored particles generally acquire a large effective mass due to dressed gluon effects.

Iida, H.; Takahashi, T. T. [Yukawa Institute for Theoretical Physics, Kyoto University, Sakyo, Kyoto 606-8502 (Japan); Suganuma, H. [Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)

2007-06-13T23:59:59.000Z

146

The Heart-shaped Supernova Remnant 3C391 viewed in Multi-bands  

E-Print Network [OSTI]

Using Chandra X-ray, Spitzer mid-IR, and 1.5 GHz radio data, we examine the spatial structure of SNR 3C391. The X-ray surface brightness is generally anti-correlative with the IR and radio brightness. The multiband data clearly exhibit a heart-shaped morphology and show the multi-shell structure of the remnant. A thin brace-like shell on the south detected at 24 um is projected outside the radio border and confines the southern faint X-ray emission. The leading 24 um knot on the SE boundary appears to be partly surrounded by soft X-ray emitting gas. The mid-IR emission is dominated by the contribution of the shocked dust grains, which may have been partly destroyed by sputtering.

Yang Su; Yang Chen

2007-03-29T23:59:59.000Z

147

Origin of radiation tolerance in 3C-SiC with nanolayered planar defects  

SciTech Connect (OSTI)

We have recently found that the radiation tolerance of SiC is highly enhanced by introducing nanolayers of stacking faults and twins [Y. Zhang et al., Phys. Chem. Chem. Phys. 14, 13429 (2012)]. To reveal the origin of this radiation resistance, we used in situ transmission electron microscopy to examine structural changes induced by electron beam irradiation in 3C-SiC containing nanolayers of (111) planar defects. We found that preferential amorphization, when it does occur, takes place at grain boundaries and at 111 and 111 planar defects. Radiationinduced point defects, such as interstitials and vacancies, migrate two-dimensionally between the (111) planar defects, which probably enhances the damage recovery.

Ishimaru, Dr. Manabu [Osaka University; Zhang, Yanwen [ORNL; Shannon, Prof. Steven [North Carolina State University; Weber, William J [ORNL

2013-01-01T23:59:59.000Z

148

Collector/Receiver Characterization (Fact Sheet)  

SciTech Connect (OSTI)

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.

Not Available

2010-08-01T23:59:59.000Z

149

One Video Stream to Serve Diverse Receivers  

E-Print Network [OSTI]

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 ...

Woo, Grace

2008-10-18T23:59:59.000Z

150

New insights into the evolution of the FR I radio galaxy 3C 270 (NGC 4261) from VLA and GMRT radio observations  

E-Print Network [OSTI]

We present Giant Metrewave Radio Telescope (GMRT) 240 MHz observations of the nearby luminous FR I radio source 3C 270, in the group-central elliptical NGC 4261. Combining these data with reprocessed Very Large Array (VLA) 1.55 and 4.8 GHz observations, we produce spectral index maps that reveal a constant spectral index along the jets and a gradual steepening from the ends of the jets through the lobes towards the nucleus. A Jaffe & Perola (JP) model fitted to the integrated spectrum of the source gives an asymptotic low-frequency index of $\\alpha_{inj}=0.53_{-0.02}^{+0.01}$, while JP models fitted to the observed spectral index trend along the lobes allow us to estimate radiative ages of $\\sim29$ Myr and $\\sim37$ Myr for the west and east lobes respectively. Our age estimates are a factor of two lower than the 75-Myr upper limit derived from X-ray data (O'Sullivan et al. 2011). We find unlikely the scenario of an early supersonic phase in which the lobe expanded into the ISM at approximately Mach 6 (350...

Kolokythas, Konstantinos; Giacintucci, Simona; Raychaudhury, Somak; Ishwara-Chandra, C H; Worrall, Diana M; Birkinshaw, Mark

2015-01-01T23:59:59.000Z

151

A handbook for solar central receiver design  

SciTech Connect (OSTI)

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.

Falcone, P.K.

1986-12-01T23:59:59.000Z

152

Photoelectrochemistry of Semiconductor Nanowire Arrays  

SciTech Connect (OSTI)

This project supported research on the growth and photoelectrochemical characterization of semiconductor nanowire arrays, and on the development of catalytic materials for visible light water splitting to produce hydrogen and oxygen. Silicon nanowires were grown in the pores of anodic aluminum oxide films by the vapor-liquid-solid technique and were characterized electrochemically. Because adventitious doping from the membrane led to high dark currents, silicon nanowire arrays were then grown on silicon substrates. The dependence of the dark current and photovoltage on preparation techniques, wire diameter, and defect density was studied for both p-silicon and p-indium phosphide nanowire arrays. The open circuit photovoltage of liquid junction cells increased with increasing wire diameter, reaching 350 mV for micron-diameter silicon wires. Liquid junction and radial p-n junction solar cells were fabricated from silicon nano- and microwire arrays and tested. Iridium oxide cluster catalysts stabilized by bidentate malonate and succinate ligands were also made and studied for the water oxidation reaction. Highlights of this project included the first papers on silicon and indium phosphide nanowire solar cells, and a new procedure for making ligand-stabilized water oxidation catalysts that can be covalently linked to molecular photosensitizers or electrode surfaces.

Mallouk, Thomas E; Redwing, Joan M

2009-11-10T23:59:59.000Z

153

Biosafety Inspection Protocol In accordance with best practices and National Institutes of Health (NIH) guidelines section IV-B-3-c-(1), periodic  

E-Print Network [OSTI]

of Health (NIH) guidelines section IV-B-3-c-(1), periodic inspections and re-inspections by the University

154

Liquid cooled, linear focus solar cell receiver  

DOE Patents [OSTI]

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.

Kirpich, Aaron S. (Broomall, PA)

1985-01-01T23:59:59.000Z

155

Liquid cooled, linear focus solar cell receiver  

DOE Patents [OSTI]

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.

Kirpich, A.S.

1983-12-08T23:59:59.000Z

156

Method to fabricate hollow microneedle arrays  

DOE Patents [OSTI]

An inexpensive and rapid method for fabricating arrays of hollow microneedles uses a photoetchable glass. Furthermore, the glass hollow microneedle array can be used to form a negative mold for replicating microneedles in biocompatible polymers or metals. These microneedle arrays can be used to extract fluids from plants or animals. Glucose transport through these hollow microneedles arrays has been found to be orders of magnitude more rapid than natural diffusion.

Kravitz, Stanley H. (Placitas, NM); Ingersoll, David (Albuquerque, NM); Schmidt, Carrie (Los Lunas, NM); Flemming, Jeb (Albuquerque, NM)

2006-11-07T23:59:59.000Z

157

Specification for the unified heliostat array  

SciTech Connect (OSTI)

The performance and design requirements for the Unified Heliostat Array are established. The Unified Heliostat Array is an array of heliostats on a common terraced structure. Requirements are given for designing and evaluating the individual heliostats. Representative site conditions to be encountered and survived by the array are described, including wind loading, precipitation, insolation, and earthquake, and soil properties are described. Heliostat design load calculations and preliminary design point calculations are presented. (LEW)

Not Available

1980-06-13T23:59:59.000Z

158

STAR-JET INTERACTIONS AND GAMMA-RAY OUTBURSTS FROM 3C454.3  

SciTech Connect (OSTI)

We propose a model to explain the ultra-bright GeV gamma-ray flares observed from the blazar 3C454.3. The model is based on the concept of a relativistic jet interacting with compact gas condensations produced when a star (a red giant) crosses the jet close to the central black hole. The study includes an analytical treatment of the evolution of the envelope lost by the star within the jet, and calculations of the related high-energy radiation. The model readily explains the day-long that varies on timescales of hours, GeV gamma-ray flare from 3C454.3, observed during 2010 November on top of a plateau lasting weeks. In the proposed scenario, the plateau state is caused by a strong wind generated by the heating of the stellar atmosphere due to nonthermal particles accelerated at the jet-star interaction region. The flare itself could be produced by a few clouds of matter lost by the red giant after the initial impact of the jet. In the framework of the proposed scenario, the observations constrain the key model parameters of the source, including the mass of the central black hole: M{sub BH} {approx_equal} 10{sup 9} M{sub Sun }, the total jet power: L{sub j} {approx_equal} 10{sup 48} erg s{sup -1}, and the Doppler factor of the gamma-ray emitting clouds: {delta} {approx_equal} 20. Whereas we do not specify the particle acceleration mechanisms, the potential gamma-ray production processes are discussed and compared in the context of the proposed model. We argue that synchrotron radiation of protons has certain advantages compared to other radiation channels of directlyaccelerated electrons. An injected proton distribution {proportional_to}E {sup -1} or harder below the relevant energies would be favored to alleviate the tight energetic constraints and to avoid the violation of the observational low-energy constraints.

Khangulyan, D. V. [Institute of Space and Astronautical Science/JAXA, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Barkov, M. V. [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany); Bosch-Ramon, V. [Departament d'Astronomia i Meteorologia, Institut de Ciencies del Cosmos (ICC), Universitat de Barcelona (IEEC-UB), Marti i Franques 1, E-08028 Barcelona (Spain); Aharonian, F. A. [Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2 (Ireland); Dorodnitsyn, A. V. [Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center, Code 662, Greenbelt, MD 20771 (United States)

2013-09-10T23:59:59.000Z

159

Proceedings: EPRI Second Phased Array Inspection Seminar  

SciTech Connect (OSTI)

The Second EPRI Phased Array Inspection Seminar focused on industrial applications of phased array technology that have been achieved to date or are planned for the near future. Presentations were made by developers of inspection techniques, inspection services vendors, and utility personnel who have performed inspections using arrays.

None

2001-11-01T23:59:59.000Z

160

Electromagnetic Formation Flight of Satellite Arrays  

E-Print Network [OSTI]

Electromagnetic Formation Flight of Satellite Arrays Daniel W. Kwon and David W. Miller February 2005 SSL # 2-05 #12;#12;Electromagnetic Formation Flight of Satellite Arrays By DANIEL W. KWON S;#12;Electromagnetic Formation Flight of Satellite Arrays by DANIEL W. KWON Submitted to the Department of Aeronautics

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
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161

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

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

Paulsson, Inc. SCNGO FY13-1424 months Gary Covatch San Pedro, CA A 1,000 Level Drill Pipe Deployed Fiber Optic 3C Receiver Array for Deep Boreholes Field test a five level 3C...

162

Long range heliostat target using array of normal incidence pyranometers to evaluate a beam of solar radiation  

DOE Patents [OSTI]

Various technologies described herein pertain to evaluating a beam reflected by a heliostat. A portable target that has an array of sensors mounted thereupon is configured to capture the beam reflected by the heliostat. The sensors in the array output measured values indicative of a characteristic of the beam reflected by the heliostat. Moreover, a computing device can generate and output data corresponding to the beam reflected by the heliostat based on the measured values indicative of the characteristic of the beam received from the sensors in the array.

Ghanbari, Cheryl M; Ho, Clifford K; Kolb, Gregory J

2014-03-04T23:59:59.000Z

163

Scalar-Quark Systems and Chimera Hadrons in SU(3)_c Lattice QCD  

E-Print Network [OSTI]

Light scalar-quarks \\phi (colored scalar particles or idealized diquarks) and their color-singlet hadronic states are studied with quenched SU(3)_c lattice QCD in terms of mass generation in strong interaction without chiral symmetry breaking. We investigate ``scalar-quark mesons'' \\phi^\\dagger \\phi and ``scalar-quark baryons'' \\phi\\phi\\phi which are the bound states of scalar-quarks \\phi. We also investigate the bound states of scalar-quarks \\phi and quarks \\psi, i.e., \\phi^\\dagger \\psi, \\psi\\psi\\phi and \\phi\\phi\\psi, which we name ``chimera hadrons''. All the new-type hadrons including \\phi are found to have a large mass even for zero bare scalar-quark mass m_\\phi=0 at a^{-1}\\simeq 1GeV. We find that the constituent scalar-quark and quark picture is satisfied for all the new-type hadrons. Namely, the mass of the new-type hadron composed of m \\phi's and n \\psi's, M_{{m}\\phi+{n}\\psi}, satisfies M_{{m}\\phi+{n}\\psi}\\simeq {m} M_\\phi +{n} M_\\psi, where M_\\phi and M_\\psi are the constituent scalar-quark and quark...

Iida, H; Takahashi, T T

2007-01-01T23:59:59.000Z

164

FIRST-PRINCIPLES CALCULATIONS OF INTRINSIC DEFECTS AND Mg TRANSMUTANTS IN 3C-SiC  

SciTech Connect (OSTI)

Silicon carbide (SiC) possesses many desirable attributes for applications in high-temperature and neutron radiation environments. These attributes include excellent dimensional and thermodynamic stability, low activation, high strength, and high thermal conductivity. Therefore, SiC based materials draw broad attention as structural materials for the first wall (FW) and blanket in fusion power plants. Under the severe high-energy neutron environment of D-T fusion systems, SiC suffers significant transmutation resulting in both gaseous and metallic transmutants. Recent calculations by Sawan, et al. [2] predict that at a fast neutron dose of ~100 dpa, there will be about 0.5 at% Mg generated in SiC through nuclear transmutation. Other transmutation products, including 0.15 at% Al, 0.2 at% Be and 2.2 at% He, also emerge. Formation and migration energies of point defects in 3C-SiC have been widely investigated using density functional theory (DFT). However, the properties of defects associated with transmutants are currently not well understood. Fundamental understanding of where the transmutation products go and how they affect microstructure evolution of SiC composites will help to predict property evolution and performance of SiC-based materials in fusion reactors.

Hu, Shenyang Y.; Setyawan, Wahyu; Van Ginhoven, Renee M.; Jiang, Weilin; Henager, Charles H.; Kurtz, Richard J.

2013-09-25T23:59:59.000Z

165

MULTI-EPOCH OBSERVATIONS OF THE RED WING EXCESS IN THE SPECTRUM OF 3C 279  

SciTech Connect (OSTI)

It has been previously determined that there is a highly significant correlation between the spectral index from 10 GHz to 1350 A and the amount of excess luminosity in the red wing of quasar C IV {lambda}1549 broad emission lines (BELs). Ostensibly, the prominence of the red excess is associated with the radio jet emission mechanism and is most pronounced for lines of sight close to the jet axis. Studying the scant significant differences in the UV spectra of radio-loud and radio-quiet quasars might provide vital clues to the origin of the unknown process that creates powerful relativistic jets that appear in only about 10% of quasars. In this study, the phenomenon is explored with multi-epoch observations of the Mg II {lambda}2798 broad line in 3C 279 which has one of the largest known red wing excesses in a quasar spectrum. The amount of excess that is detected appears to be independent of all directly observed optical continuum, radio, or submillimeter properties (fluxes or polarizations). The only trend that occurs in this sparse data is: the stronger the BEL, the larger the fraction of flux that resides in the red wing. It is concluded that more monitoring is needed and spectropolarimetry with a large telescope is essential during low states to understand more.

Punsly, Brian, E-mail: brian.punsly@verizon.net, E-mail: brian.punsly@comdev-usa.com [1415 Granvia Altamira, Palos Verdes Estates, CA 90274 (United States); ICRANet, Piazza della Repubblica 10, I-65100 Pescara (Italy)

2013-01-10T23:59:59.000Z

166

Systems Analysis of an Advanced Nuclear Fuel Cycle Based on a Modified UREX+3c Process  

SciTech Connect (OSTI)

The research described in this report was performed under a grant from the U.S. Department of Energy (DOE) to describe and compare the merits of two advanced alternative nuclear fuel cycles -- named by this study as the UREX+3c fuel cycle and the Alternative Fuel Cycle (AFC). Both fuel cycles were assumed to support 100 1,000 MWe light water reactor (LWR) nuclear power plants operating over the period 2020 through 2100, and the fast reactors (FRs) necessary to burn the plutonium and minor actinides generated by the LWRs. Reprocessing in both fuel cycles is assumed to be based on the UREX+3c process reported in earlier work by the DOE. Conceptually, the UREX+3c process provides nearly complete separation of the various components of spent nuclear fuel in order to enable recycle of reusable nuclear materials, and the storage, conversion, transmutation and/or disposal of other recovered components. Output of the process contains substantially all of the plutonium, which is recovered as a 5:1 uranium/plutonium mixture, in order to discourage plutonium diversion. Mixed oxide (MOX) fuel for recycle in LWRs is made using this 5:1 U/Pu mixture plus appropriate makeup uranium. A second process output contains all of the recovered uranium except the uranium in the 5:1 U/Pu mixture. The several other process outputs are various waste streams, including a stream of minor actinides that are stored until they are consumed in future FRs. For this study, the UREX+3c fuel cycle is assumed to recycle only the 5:1 U/Pu mixture to be used in LWR MOX fuel and to use depleted uranium (tails) for the makeup uranium. This fuel cycle is assumed not to use the recovered uranium output stream but to discard it instead. On the other hand, the AFC is assumed to recycle both the 5:1 U/Pu mixture and all of the recovered uranium. In this case, the recovered uranium is reenriched with the level of enrichment being determined by the amount of recovered plutonium and the combined amount of the resulting MOX. The study considered two sub-cases within each of the two fuel cycles in which the uranium and plutonium from the first generation of MOX spent fuel (i) would not be recycled to produce a second generation of MOX for use in LWRs or (ii) would be recycled to produce a second generation of MOX fuel for use in LWRs. The study also investigated the effects of recycling MOX spent fuel multiple times in LWRs. The study assumed that both fuel cycles would store and then reprocess spent MOX fuel that is not recycled to produce a next generation of LWR MOX fuel and would use the recovered products to produce FR fuel. The study further assumed that FRs would begin to be brought on-line in 2043, eleven years after recycle begins in LWRs, when products from 5-year cooled spent MOX fuel would be available. Fuel for the FRs would be made using the uranium, plutonium, and minor actinides recovered from MOX. For the cases where LWR fuel was assumed to be recycled one time, the 1st generation of MOX spent fuel was used to provide nuclear materials for production of FR fuel. For the cases where the LWR fuel was assumed to be recycled two times, the 2nd generation of MOX spent fuel was used to provide nuclear materials for production of FR fuel. The number of FRs in operation was assumed to increase in successive years until the rate that actinides were recovered from permanently discharged spent MOX fuel equaled the rate the actinides were consumed by the operating fleet of FRs. To compare the two fuel cycles, the study analyzed recycle of nuclear fuel in LWRs and FRs and determined the radiological characteristics of irradiated nuclear fuel, nuclear waste products, and recycle nuclear fuels. It also developed a model to simulate the flows of nuclear materials that could occur in the two advanced nuclear fuel cycles over 81 years beginning in 2020 and ending in 2100. Simulations projected the flows of uranium, plutonium, and minor actinides as these nuclear fuel materials were produced and consumed in a fleet of 100 1,000 MWe LWRs and in FRs. The model als

E. R. Johnson; R. E. Best

2009-12-28T23:59:59.000Z

167

Recent Results from Telescope Array  

E-Print Network [OSTI]

The Telescope Array (TA) is an experiment to observe Ultra-High Energy Cosmic Rays (UHECRs). TA's recent results, the energy spectrum and anisotropy based on the 6-year surface array data, and the primary composition obtained from the shower maximum Xmax are reported. The spectrum demonstrates a clear dip and cutoff. The shape of the spectrum is well described by the energy loss of extra-galactic protons interacting with the cosmic microwave background (CMB). Above the cutoff, a medium-scale (20 degrees radius) flux enhancement was observed near the Ursa-Major. A chance probability of creating this hotspot from the isotropic flux is 4.0 sigma. The measured Xmax is consistent with the primary being proton or light nuclei for energies 10^18.2 eV - 10^19.2 eV.

Fukushima, M

2015-01-01T23:59:59.000Z

168

High voltage load resistor array  

DOE Patents [OSTI]

A high voltage resistor comprising an array of a plurality of parallel electrically connected resistor elements each containing a resistive solution, attached at each end thereof to an end plate, and about the circumference of each of the end plates, a corona reduction ring. Each of the resistor elements comprises an insulating tube having an electrode inserted into each end thereof and held in position by one or more hose clamps about the outer periphery of the insulating tube. According to a preferred embodiment, the electrode is fabricated from stainless steel and has a mushroom shape at one end, that inserted into the tube, and a flat end for engagement with the end plates that provides connection of the resistor array and with a load.

Lehmann, Monty Ray (Smithfield, VA)

2005-01-18T23:59:59.000Z

169

Measuring overall emittance of concentrator receiver pipes  

SciTech Connect (OSTI)

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)

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

1980-03-01T23:59:59.000Z

170

Patent Issued Additional Office Actions Received  

E-Print Network [OSTI]

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

Cui, Yan

171

Constraining the extension of a possible gamma-ray halo of 3C 279 from 2008-2014 solar occultations  

E-Print Network [OSTI]

The angular extension of the gamma-ray image of 3C 279 may be constrained by studying its solar occultations as suggested by Fairbairn et al. (2010). We perform this kind of analysis for seven occultations observed by Fermi-LAT in 2008-2014, using the Fermi-LAT Solar System tools. The results are interpreted in terms of models with extended gamma-ray halo of 3C 279; first constraints on the size and the flux of the halo are reported.

Kotelnikov, Egor; Troitsky, Sergey

2014-01-01T23:59:59.000Z

172

Scalar-Quark Systems and Chimera Hadrons in SU(3)_c Lattice QCD  

E-Print Network [OSTI]

Light scalar-quarks \\phi (colored scalar particles or idealized diquarks) and their color-singlet hadronic states are studied with quenched SU(3)_c lattice QCD in terms of mass generation in strong interaction without chiral symmetry breaking. We investigate ``scalar-quark mesons'' \\phi^\\dagger \\phi and ``scalar-quark baryons'' \\phi\\phi\\phi which are the bound states of scalar-quarks \\phi. We also investigate the bound states of scalar-quarks \\phi and quarks \\psi, i.e., \\phi^\\dagger \\psi, \\psi\\psi\\phi and \\phi\\phi\\psi, which we name ``chimera hadrons''. All the new-type hadrons including \\phi are found to have a large mass even for zero bare scalar-quark mass m_\\phi=0 at a^{-1}\\simeq 1GeV. We find that the constituent scalar-quark and quark picture is satisfied for all the new-type hadrons. Namely, the mass of the new-type hadron composed of m \\phi's and n \\psi's, M_{{m}\\phi+{n}\\psi}, satisfies M_{{m}\\phi+{n}\\psi}\\simeq {m} M_\\phi +{n} M_\\psi, where M_\\phi and M_\\psi are the constituent scalar-quark and quark mass, respectively. M_\\phi at m_\\phi=0 estimated from these new-type hadrons is 1.5-1.6GeV, which is larger than that of light quarks, M_\\psi\\simeq 400{\\rm MeV}. Therefore, in the systems of scalar-quark hadrons and chimera hadrons, scalar-quarks acquire large mass due to large quantum corrections by gluons. Together with other evidences of mass generations of glueballs and charmonia, we conjecture that all colored particles generally acquire a large effective mass due to dressed gluon effects.

H. Iida; H. Suganuma; T. T. Takahashi

2007-05-28T23:59:59.000Z

173

Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors  

DOE Patents [OSTI]

A portable, low-power, metallic object detector and method for providing an image of a detected metallic object. In one embodiment, the present portable low-power metallic object detector an array of giant magnetoresistive (GMR) sensors. The array of GMR sensors is adapted for detecting the presence of and compiling image data of a metallic object. In the embodiment, the array of GMR sensors is arranged in a checkerboard configuration such that axes of sensitivity of alternate GMR sensors are orthogonally oriented. An electronics portion is coupled to the array of GMR sensors. The electronics portion is adapted to receive and process the image data of the metallic object compiled by the array of GMR sensors. The embodiment also includes a display unit which is coupled to the electronics portion. The display unit is adapted to display a graphical representation of the metallic object detected by the array of GMR sensors. In so doing, a graphical representation of the detected metallic object is provided.

Chaiken, Alison (Fremont, CA)

2000-01-01T23:59:59.000Z

174

High Quality Graphene Formation on Improved 3C-SiC Epilayer Michael Walker,1,2  

E-Print Network [OSTI]

UG-32 High Quality Graphene Formation on Improved 3C-SiC Epilayer Michael Walker,1 excellent electronic, mechanical, photonic properties and 2D nature, graphene is believed to be able to push the semiconductor industry into the beyond- CMOS era. Among all the synthesis methods, the Graphene-On-Silicon (GOS

175

THE {gamma}-RAY EMISSION REGION IN THE FANAROFF-RILEY II RADIO GALAXY 3C 111  

SciTech Connect (OSTI)

The broad-line radio galaxy 3C 111, characterized by a Fanaroff-Riley II (FRII) radio morphology, is one of the sources of the misaligned active galactic nucleus sample, consisting of radio galaxies and steep spectrum radio quasars, recently detected by the Fermi Large Area Telescope (LAT). Our analysis of the 24 month {gamma}-ray light curve shows that 3C 111 was only occasionally detected at high energies. It was bright at the end of 2008 and faint, below the Fermi-LAT sensitivity threshold, for the rest of the time. A multifrequency campaign of 3C 111, ongoing in the same period, revealed an increase of the millimeter, optical, and X-ray fluxes in 2008 September-November, interpreted by Chatterjee et al. as due to the passage of a superluminal knot through the jet core. The temporal coincidence of the millimeter-optical-X-ray outburst with the GeV activity suggests a cospatiality of the events, allowing, for the first time, the localization of the {gamma}-ray dissipative zone in an FRII jet. We argue that the GeV photons of 3C 111 are produced in a compact region confined within 0.1 pc and at a distance of about 0.3 pc from the black hole.

Grandi, P.; Torresi, E. [Istituto Nazionale di Astrofisica-IASFBO, Via Gobetti 101, I-40129, Bologna (Italy); Stanghellini, C., E-mail: grandi@iasfbo.inaf.it, E-mail: torresi@iasfbo.inaf.it, E-mail: cstan@ira.inaf.it [Istituto Nazionale di Astrofisica-IRA, Via Gobetti 101, I-40129, Bologna (Italy)

2012-05-20T23:59:59.000Z

176

Full-wave receiver architecture for the homodyne motion sensor  

DOE Patents [OSTI]

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.

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

2013-11-19T23:59:59.000Z

177

A NEW SOLAR THERMAL RECEIVER UTILIZING SMALL PARTICLES  

E-Print Network [OSTI]

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

Hunt, Arlon J.

2011-01-01T23:59:59.000Z

178

Signal processor for processing ultrasonic receiver signals  

DOE Patents [OSTI]

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.

Fasching, George E. (Morgantown, WV)

1980-01-01T23:59:59.000Z

179

Double interconnection fuel cell array  

DOE Patents [OSTI]

A fuel cell array is made, containing number of tubular, elongated fuel cells which are placed next to each other in rows (A, B, C, D), where each cell contains inner electrodes and outer electrodes, with solid electrolyte between the electrodes, where the electrolyte and outer electrode are discontinuous, having two portions, and providing at least two opposed discontinuities which contain at least two oppositely opposed interconnections contacting the inner electrode, each cell having only three metallic felt electrical connectors which contact surrounding cells, where each row is electrically connected to the other. 5 figures.

Draper, R.; Zymboly, G.E.

1993-12-28T23:59:59.000Z

180

Coated carbon nanotube array electrodes  

DOE Patents [OSTI]

The present invention provides conductive carbon nanotube (CNT) electrode materials comprising aligned CNT substrates coated with an electrically conducting polymer, and the fabrication of electrodes for use in high performance electrical energy storage devices. In particular, the present invention provides conductive CNTs electrode material whose electrical properties render them especially suitable for use in high efficiency rechargeable batteries. The present invention also provides methods for obtaining surface modified conductive CNT electrode materials comprising an array of individual linear, aligned CNTs having a uniform surface coating of an electrically conductive polymer such as polypyrrole, and their use in electrical energy storage devices.

Ren, Zhifeng; Wen, Jian; Chen, Jinghua; Huang, Zhongping; Wang, Dezhi

2006-12-12T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Coated carbon nanotube array electrodes  

DOE Patents [OSTI]

The present invention provides conductive carbon nanotube (CNT) electrode materials comprising aligned CNT substrates coated with an electrically conducting polymer, and the fabrication of electrodes for use in high performance electrical energy storage devices. In particular, the present invention provides conductive CNTs electrode material whose electrical properties render them especially suitable for use in high efficiency rechargeable batteries. The present invention also provides methods for obtaining surface modified conductive CNT electrode materials comprising an array of individual linear, aligned CNTs having a uniform surface coating of an electrically conductive polymer such as polypyrrole, and their use in electrical energy storage devices.

Ren, Zhifeng (Newton, MA); Wen, Jian (Newton, MA); Chen, Jinghua (Chestnut Hill, MA); Huang, Zhongping (Belmont, MA); Wang, Dezhi (Wellesley, MA)

2008-10-28T23:59:59.000Z

182

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...

183

Sandia National Laboratories: JBEI Research Receives Strong Industry...  

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

EnergyBiofuelsJBEI Research Receives Strong Industry Interest in DOE Technology Transfer Call JBEI Research Receives Strong Industry Interest in DOE Technology Transfer...

184

MAY 14, 2008 Chemistry and environmental science professor receives Carroll  

E-Print Network [OSTI]

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

Reid, Scott A.

185

Highly linear SAW-less receiver design techniques for CDMA  

E-Print Network [OSTI]

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

Kim, Nam Soo

2010-01-01T23:59:59.000Z

186

An RF Receiver Architecture for Intra-Band Carrier Aggregation  

E-Print Network [OSTI]

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

Hwu, Sy-Chyuan

2013-01-01T23:59:59.000Z

187

LANL spinoff receives NIH grant for respiratory disease diagnostic...  

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

LANL spinoff receives NIH grant LANL spinoff receives NIH grant for respiratory disease diagnostic device Mesa Tech has been awarded a grant to develop an inexpensive,...

188

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...

189

24 Universities Receiving Funding to Train Next Generation of...  

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

4 Universities Receiving Funding to Train Next Generation of Energy Efficiency Experts 24 Universities Receiving Funding to Train Next Generation of Energy Efficiency Experts...

190

Interferometric Plasmonic Lensing with Nanohole Arrays  

SciTech Connect (OSTI)

Nonlinear photoemission electron microscopy (PEEM) of nanohole arrays in gold films maps propagating surface plasmons (PSPs) launched from lithographically patterned structures. Strong near field photoemission patterns are observed in the PEEM images, recorded following low angle of incidence irradiation of nanohole arrays with sub-15 fs laser pulses centered at 780 nm. The recorded photoemission patterns are attributed to constructive and destructive interferences between PSPs launched from the individual nanoholes which comprise the array. By exploiting the wave nature of PSPs, we demonstrate how varying the array geometry (hole diameter, pitch, and number of rows/columns) ultimately yields intense localized photoemission. Through a combination of PEEM and finite-difference time-domain simulations, we identify the optimal array geometry for efficient light coupling and interferometric plasmonic lensing. We show a preliminary application of inteferometric plasmonic lensing by enhancing the photoemission from the vertex of a gold triangle using nanohole array.

Gong, Yu; Joly, Alan G.; El-Khoury, Patrick Z.; Hess, Wayne P.

2014-12-18T23:59:59.000Z

191

Vector Sensor Arrays in Underwater Acoustic Applications  

E-Print Network [OSTI]

and Sérgio M. Jesus1, 1 Institute for Systems and Robotics, University of Algarve, Campus de Gambelas, 8005 hydrophone arrays in ot

Jesus, Sérgio M.

192

Microfabricated wire arrays for Z-pinch.  

SciTech Connect (OSTI)

Microfabrication methods have been applied to the fabrication of wire arrays suitable for use in Z. Self-curling GaAs/AlGaAs supports were fabricated as an initial route to make small wire arrays (4mm diameter). A strain relief structure that could be integrated with the wire was designed to allow displacements of the anode/cathode connections in Z. Electroplated gold wire arrays with integrated anode/cathode bus connections were found to be sufficiently robust to allow direct handling. Platinum and copper plating processes were also investigated. A process to fabricate wire arrays on any substrate with wire thickness up to 35 microns was developed. Methods to handle and mount these arrays were developed. Fabrication of wire arrays of 20mm diameter was demonstrated, and the path to 40mm array fabrication is clear. With some final investment to show array mounting into Z hardware, the entire process to produce a microfabricated wire array will have been demonstrated.

Spahn, Olga Blum; Rowen, Adam M.; Cich, Michael Joseph; Peake, Gregory Merwin; Arrington, Christian L.; Nash, Thomas J.; Klem, John Frederick; Romero, Dustin Heinz

2008-10-01T23:59:59.000Z

193

Phased array compaction cell for measurement of the transversely isotropic elastic properties of compacting sediments  

SciTech Connect (OSTI)

Sediments undergoing compaction typically exhibit transversely isotropic (TI) elastic properties. We present a new experimental apparatus, the phased array compaction cell, for measuring the TI elastic properties of clay-rich sediments during compaction. This apparatus uses matched sets of P- and S-wave ultrasonic transducers located along the sides of the sample and an ultrasonic P-wave phased array source, together with a miniature P-wave receiver on the top and bottom ends of the sample. The phased array measurements are used to form plane P-waves that provide estimates of the phase velocities over a range of angles. From these measurements, the five TI elastic constants can be recovered as the sediment is compacted, without the need for sample unloading, recoring, or reorienting. This paper provides descriptions of the apparatus, the data processing, and an application demonstrating recovery of the evolving TI properties of a compacting marine sediment sample.

Nihei, K.T.; Nakagawa, S.; Reverdy, F.; Meyer, L.R.; Duranti, L.; Ball, G.

2010-12-15T23:59:59.000Z

194

The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies  

E-Print Network [OSTI]

The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a ...

Goeke, Robert F.

195

Three-dimensional Josephson-junction arrays: Static magnetic response R. De Luca and T. Di Matteo  

E-Print Network [OSTI]

Three-dimensional Josephson-junction arrays: Static magnetic response R. De Luca and T. Di Matteo Tampere, Finland Received 17 July 1997 In this work we present a simple three-dimensional Josephson-junction directions perpendicular to one cube side. S0163-1829 98 05502-7 I. INTRODUCTION The interest in Josephson-junction

Di Matteo, Tiziana

196

Direct observation of superconducting vortex clusters pinned by a periodic array of magnetic dots in ferromagnetic/superconducting hybrid structures  

E-Print Network [OSTI]

Direct observation of superconducting vortex clusters pinned by a periodic array of magnetic dots in ferromagnetic/superconducting hybrid structures T. Shapoval,1,* V. Metlushko,2 M. Wolf,1 B. Holzapfel,1 V. Neu,1, Illinois 60612, USA Received 13 November 2009; published 11 March 2010 Strong pinning of superconducting

Metlushko, Vitali

197

Telescope Array Radar (TARA) Observatory for Ultra-High Energy Cosmic Rays  

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

Construction was completed during summer 2013 on the Telescope Array RAdar (TARA) bi-static radar observatory for Ultra-High Energy Cosmic Rays (UHECR). TARA is co-located with the Telescope Array, the largest conventional cosmic ray detector in the Northern Hemisphere, in radio-quiet Western Utah. TARA employs an 8 MW Effective Radiated Power (ERP) VHF transmitter and smart receiver system based on a 250 MS/s data acquisition system in an effort to detect the scatter of sounding radiation by UHECR-induced atmospheric ionization. TARA seeks to demonstrate bi-static radar as a useful new remote sensing technique for UHECRs. In this report, we describe the design and performance of the TARA transmitter and receiver systems.

Abbasi, R. [Univ. of Utah, Salt Lake City, UT (United States); Takai, H. [Brookhaven National Laboratory (BNL), Upton, NY (United States); Allen, C. [Univ. of Kansas, Lawrence, KS (United States); Beard, L. [Purdue Univ., West Lafayette, IN (United States); Belz, J. [Univ. of Utah, Salt Lake City, UT (United States); Besson, D. [Univ. of Kansas, Lawrence, KS (United States). Moscow Engineering and Physics Inst. (Russian Federation); Byrne, M. [Univ. of Utah, Salt Lake City, UT (United States); Abou Bakr Othman, M. [Univ. of Utah, Salt Lake City, UT (United States); Farhang-Boroujeny, B. [Univ. of Utah, Salt Lake City, UT (United States); Gardner, A. [Univ. of Utah, Salt Lake City, UT (United States); Gillman, W.H. [Gillman and Associates, Salt Lake City, UT (United States); Hanlon, W. [Univ. of Utah, Salt Lake City, UT (United States); Hanson, J. [Univ. of Kansas, Lawrence, KS (United States); Jayanthmurthy, C. [Univ. of Utah, Salt Lake City, UT (United States); Kunwar, S. [Univ. of Kansas, Lawrence, KS (United States); Larson, S. L. [Utah State Univ., Logan, UT (United States); Myers, I. [Univ. of Utah, Salt Lake City, UT (United States); Prohira, S. [Univ. of Kansas, Lawrence, KS (United States); Ratzlaff, K. [Univ. of Kansas, Lawrence, KS (United States); Sokolsky, P. [Univ. of Utah, Salt Lake City, UT (United States); Thomson, G. B. [Univ. of Utah, Salt Lake City, UT (United States); Von Maluski, D. [Univ. of Utah, Salt Lake City, UT (United States)

2014-12-01T23:59:59.000Z

198

Advanced motor driven clamped borehole seismic receiver  

DOE Patents [OSTI]

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.

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

1993-01-01T23:59:59.000Z

199

Advanced motor driven clamped borehole seismic receiver  

DOE Patents [OSTI]

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.

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

1993-02-23T23:59:59.000Z

200

Erik Olds Receives NNSA Silver Medal  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy and Assistance100 ton Stanat rolling millEric WalterOlds Receives

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr Flickr Editor's note:Computing | ArgonnechallengingFry receives

202

Sandia National Laboratories: 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy AdvancedEnergyEnergy EfficientFacility Central Receiver

203

alder receives national: Topics by E-print Network  

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

through frequency detuning in a coupled set of local obtainedby detuning the end elements of the local oscillator array. It is possible to increasethe York, Robert A. 228...

204

An investigation of receiver probe development for magnetic resonance microscopy  

E-Print Network [OSTI]

planar microcoils and microcoil array designs are given that can be rearranged using integrated circuit and printed circuit board fabrication techniques....

Boyer, Jeffrey Scott

1995-01-01T23:59:59.000Z

205

Solar central receiver heliostat reflector assembly  

DOE Patents [OSTI]

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.

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

1980-01-01T23:59:59.000Z

206

A Correlation Between Optical, X-ray, and Gamma-ray Variations in Blazar 3C 454.3  

E-Print Network [OSTI]

We present the light curve data of a remarkable blazer 3C 454.3 (z=0.859) in optical, X-ray, and gamma-ray bands. Since January 2008, we have been monitoring this object using the 50 cm MITSuME, a optical telescope, and detected several flares including extraordinary and simultaneous flares in the $\\gamma$-ray and optical bands in November 2010. Additionally, the Monitor of All-sky Image (MAXI) has been observing 3C 454.3 continuously since August 2009. Using these data and gamma-ray flux observed with Fermi-LAT, we discuss features and correlations of flux variations between the energy bands.

Tachibana, Yutaro; Pike, Sean

2015-01-01T23:59:59.000Z

207

E-Print Network 3.0 - array format 20khz Sample Search Results  

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

3 Computation Visualization Summary: . . . . . . . . . . . . . . . . . . 6 Version 5 MATLAB Array Data Element Formats . . . .10 Numeric Array and Character Array Data... Element...

208

Discovery of TeV gamma-ray emission from the Pulsar Wind Nebula 3C 58 by MAGIC  

E-Print Network [OSTI]

The Pulsar Wind Nebula (PWN) 3C 58 is energized by one of the highest spin-down power pulsars known (5% of Crab pulsar) and it has been compared to the Crab Nebula due to their morphological similarities. This object was detected by Fermi-LAT with a spectrum extending beyond 100 GeV. We analyzed 81 hours of 3C 58 data taken with the MAGIC telescopes and we detected VHE gamma-ray emission for the first time at TeV energies with a significance of 5.7 sigma and an integral flux of 0.65% C.U. above 1 TeV. The differential energy spectrum between 400 GeV and 10 TeV is well described by a power-law function $d\\Phi/dE=f_{o}(E/1TeV)^{-\\Gamma}$ with $f_{o}=(2.0\\pm0.4stat\\pm0.6sys) 10^{-13}cm^{-2}s^{-1}TeV^{-1}$ and $\\Gamma=2.4\\pm0.2sta\\pm0.2sys$. This leads 3C 58 to be the least luminous PWN ever detected at VHE and the one with the lowest flux at VHE to date. According to time-dependent models in which electrons up-scatter photon fields, the best representation favors a distance to the PWN of 2 kpc and FIR comparable...

Bigas, O Blanch; Carmona, E; Prez-Torres, M A

2015-01-01T23:59:59.000Z

209

Implications for Damage Recognition during Dpo4-Mediated Mutagenic Bypass of m1G and m3C Lesions  

SciTech Connect (OSTI)

DNA is susceptible to alkylation damage by a number of environmental agents that modify the Watson-Crick edge of the bases. Such lesions, if not repaired, may be bypassed by Y-family DNA polymerases. The bypass polymerase Dpo4 is strongly inhibited by 1-methylguanine (m1G) and 3-methylcytosine (m3C), with nucleotide incorporation opposite these lesions being predominantly mutagenic. Further, extension after insertion of both correct and incorrect bases, introduces additional base substitution and deletion errors. Crystal structures of the Dpo4 ternary extension complexes with correct and mismatched 3'-terminal primer bases opposite the lesions reveal that both m1G and m3C remain positioned within the DNA template/primer helix. However, both correct and incorrect pairing partners exhibit pronounced primer terminal nucleotide distortion, being primarily evicted from the DNA helix when opposite m1G or misaligned when pairing with m3C. Our studies provide insights into mechanisms related to hindered and mutagenic bypass of methylated lesions and models associated with damage recognition by repair demethylases.

Rechkoblit, Olga; Delaney, James C.; Essigmann, John M.; Patel, Dinshaw J. (MIT); (MSKCC)

2012-05-08T23:59:59.000Z

210

Discovery of \\gamma-ray emission from a strongly lobe-dominated quasar 3C 275.1  

E-Print Network [OSTI]

We systematically analyze the 6-year Fermi/LAT data of the lobe-dominated quasars (LDQs) in the complete LDQ sample from 3CRR survey and report the discovery of high-energy \\gamma-ray emission from 3C 275.1. The \\gamma-ray emission likely associating with 3C 207 is confirmed and significant variability of the lightcurve is identified. We do not find statistically significant \\gamma-ray emission from other LDQs. 3C 275.1 is the known \\gamma-ray quasar with the lowest core dominance parameter (i.e., R=0.11). We also show that both the northern radio hotspot and parsec jet models provide acceptable descriptions to the \\gamma-ray data. Considering the potential \\gamma-ray variability at the timescale of months, the latter is probably more favorable. The number of \\gamma-ray LDQs would increase when the exposure accumulates and hence LDQs could be non-ignorable contributors for the extragalactic \\gamma-ray background.

Liao, Neng-Hui; Li, Shang; Jiang, Wei; Liang, Yun-Feng; Li, Xiang; Zhang, Peng-Fei; Chen, Liang; Bai, Jin-Ming; Fan, Yi-Zhong

2015-01-01T23:59:59.000Z

211

Modeling the Spectral Energy Distribution and Variability of 3C 66A during the WEBT campaign of 2003 -- 2004  

E-Print Network [OSTI]

The BL Lac object 3C 66A was observed in an extensive multiwavelength monitoring campaign from July 2003 till April 2004. The spectral energy distribution (SED) was measured over the entire electromagnetic spectrum, with flux measurements from radio to X-ray frequencies and upper limits in the very high energy (VHE) gamma-ray regime. Here, we use a time-dependent leptonic jet model to reproduce the SED and optical spectral variability observed during our multiwavelength campaign. Our model simulations could successfully reproduce the observed SED and optical light curves and predict an intrinsic cutoff value for the VHE gamma-ray emission at ~ 4 GeV. The effect of the optical depth due to the intergalactic infrared background radiation (IIBR) on the peak of the high-energy component of 3C 66A was found to be negligible. Also, the presence of a broad line region (BLR) in the case of 3C 66A may play an important role in the emission of gamma-ray photons when the emission region is very close to the central engine, but further out, the production mechanism of hard X-ray and gamma-ray photons becomes rapidly dominated by synchrotron self-Compton emission. We further discuss the possibility of an observable X-ray spectral variability pattern. The simulated results do not predict observable hysteresis patterns in the optical or soft X-ray regimes for major flares on multi-day time scales.

M. Joshi; M. Boettcher

2007-04-03T23:59:59.000Z

212

Junction-side illuminated silicon detector arrays  

DOE Patents [OSTI]

A junction-side illuminated detector array of pixelated detectors is constructed on a silicon wafer. A junction contact on the front-side may cover the whole detector array, and may be used as an entrance window for light, x-ray, gamma ray and/or other particles. The back-side has an array of individual ohmic contact pixels. Each of the ohmic contact pixels on the back-side may be surrounded by a grid or a ring of junction separation implants. Effective pixel size may be changed by separately biasing different sections of the grid. A scintillator may be coupled directly to the entrance window while readout electronics may be coupled directly to the ohmic contact pixels. The detector array may be used as a radiation hardened detector for high-energy physics research or as avalanche imaging arrays.

Iwanczyk, Jan S.; Patt, Bradley E.; Tull, Carolyn

2004-03-30T23:59:59.000Z

213

Low noise Millimeter-wave and THz Receivers, Imaging Arrays, Switches in Advanced CMOS and SiGe Processes /  

E-Print Network [OSTI]

500 ? [66]. The equivalent resistance is ? 300 ? includingthe substrate resistance transform into an equivalent RCresistance. The shorted stub, which has an equivalent

Uzunkol, Mehmet

2013-01-01T23:59:59.000Z

214

Thickness dependent self limiting 1-D tin oxide nanowire arrays...  

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

dependent self limiting 1-D tin oxide nanowire arrays by nanosecond pulsed laser irradiation. Thickness dependent self limiting 1-D tin oxide nanowire arrays by nanosecond pulsed...

215

affymetrix expression arrays: Topics by E-print Network  

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

The main method for harnessing solar power is with arrays made up of photovoltaic (PV) panels. Accumulation-based cleaning methods for photovoltaic arrays are costly in time,...

216

affymetrix expression array: Topics by E-print Network  

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

The main method for harnessing solar power is with arrays made up of photovoltaic (PV) panels. Accumulation-based cleaning methods for photovoltaic arrays are costly in time,...

217

High Temperature Thermal Array for Next Generation Solar Thermal...  

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

High Temperature Thermal Array for Next Generation Solar Thermal Power Production High Temperature Thermal Array for Next Generation Solar Thermal Power Production This...

218

A Shell of Thermal X-ray Emission Associated with the Young Crab-like Remnant 3C58  

E-Print Network [OSTI]

Deep X-ray imaging spectroscopy of the bright pulsar wind nebula 3C58 confirms the existence of an embedded thermal X-ray shell surrounding the pulsar PSR J0205+6449. Radially resolved spectra obtained with the XMM-Newton telescope are well-characterized by a power-law model with the addition of a soft thermal emission component in varying proportions. These fits reproduce the well-studied increase in the spectral index with radius attributed to synchrotron burn-off of high energy electrons. Most interestingly, a radially resolved thermal component is shown to map out a shell-like structure ~6' in diameter. The presence of a strong emission line corresponding to the Ne IX He-like transition requires an overabundance of ~3 x [Ne/Ne(sun)] in the Raymond-Smith plasma model. The best-fit temperature kT ~ 0.23 keV is essentially independent of radius for the derived column density of N_H = (4.2 +/- 0.1)E21 per cm squared. Our result suggests that thermal shells can be obscured in the early evolution of a supernova remnant by non-thermal pulsar wind nebulae emission; the luminosity of the 3C58 shell is more than an order of magnitude below the upper limit on a similar shell in the Crab Nebula. We find the shell centroid to be offset from the pulsar location. If this neutron star has a velocity similar to that of the Crab pulsar, we derive an age of 3700 yr and a velocity vector aligned with the long axis of the PWN. The shell parameters and pulsar offset add to the accumulating evidence that 3C58 is not the remnant of the supernova of CE 1181.

E. V. Gotthelf; D. J. Helfand; L. Newburgh

2006-09-12T23:59:59.000Z

219

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...

220

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

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

More Documents & Publications High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical CO2 Recompression Cycle - FY13 Q1 High-Efficiency Receivers for Supercritical...

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

WIPP Receives Green Zia Award for Environmental Excellence |...  

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

WIPP Receives Green Zia Award for Environmental Excellence WIPP Receives Green Zia Award for Environmental Excellence August 16, 2012 - 12:00pm Addthis Media Contact Deb Gill U.S....

222

Fe Emission And Ionized Excess Absorption in the Luminous Quasar 3C109 With XMM-Newton  

SciTech Connect (OSTI)

We report results from an XMM-Newton observation of the broad-line radio galaxy 3C 109 (z=0.3056). Previous ASCA data revealed the presence of a broad iron line from the accretion disc with which the XMM-Newton spectrum is fully consistent. However, although improving the ASCA constraints on the line parameters, the quality of the data is not high enough to distinguish between an untruncated accretion disc extending down to small radii close to the black hole and a scenario in which the innermost 20-30 gravitational radii are missing. For this reason, our results are model-dependent and the hard data can be modeled equally well by considering an absorption scenario in which a large column of neutral gas partially covers the X-ray continuum source. However, the absorber would have to comprise hundreds/thousands very compact clouds close to the X-ray source, which seems rather extreme a requirement. The 2-10 keV intrinsic luminosity of 3C 109 is of the order of 2-3 x 10{sup 45} erg s{sup -1} regardless of the adopted model. A recent black hole mass estimate of {approx} 2 x 10{sup 8} M{sub {circle_dot}} implies that L{sub bol}/L{sub Edd} > 1. If partial covering is excluded, the observed reflection fraction (of the order of unity), steep photon index (1.86), and Fe line equivalent width (about 100 eV) all suggest to exclude that the X-ray continuum is strongly beamed indicating that the large Eddington ratio is associated with a radiatively efficient accretion process and making it unlikely that the innermost accretion disc is replaced by a thick radiatively inefficient medium such as in advection-dominated accretion models. We also confirm previous findings on the detection of low energy absorption in excess of the Galactic value, where we find excellent agreement with previous results obtained in X-rays and at other wavelengths (optical and infrared). The better quality of the XMM-Newton data enables us to attribute the excess absorption to slightly ionized gas in the line of sight, located at the redshift of 3C 109. The most likely interpretation for the excess absorption is that the line-of-sight is grazing the obscuring torus of unified models, which is consistent with the inclination inferred from the Fe line profile (about 40{sup o}) and with the hybrid radio-galaxy/quasar nature of 3C 109.

Miniutti, Giovanni; /Cambridge U., Inst. of Astron.; Ballantyne, D.R.; /Arizona U.; Allen, S.W.; /KIPAC, Menlo Park; Fabian, A.C.; /Cambridge U., Inst. of Astron.; Ross,; /Holy Cross Coll.

2006-06-09T23:59:59.000Z

223

THE INFLUENCE OF NEUTRON-IRRADIATION AT LOW TEMPERATURES ON THE DIELECTRIC PARAMETERS OF 3C-SiC  

SciTech Connect (OSTI)

3C-SiC wafers were irradiated with neutrons of various fluences and at low (200 - 400 ?C) irradiation temperatures. Fourier Transform infrared (FTIR) reflectance spectra were obtained for the samples, and the spectra used to extract the dielectric parameters for each specimen, using statistical curve-fitting procedures. Analysis of all data revealed trends in reflectance peak heights as well as in the dielectric parameters. The surface roughness of the irradiated samples was measured by atomic force spectroscopy (AFM) and certain trends could be ascribed to surface roughness.

J.A.A. Engelbrecht; G. Deyzel; E. Minnaar; W.E. Goosen; I. J. van Rooyen

2014-04-01T23:59:59.000Z

224

Science with the Murchison Widefield Array  

E-Print Network [OSTI]

Significant new opportunities for astrophysics and cosmology have been identified at low radio frequencies. The Murchison Widefield Array is the first telescope in the southern hemisphere designed specifically to explore ...

Cappallo, Roger J.

225

Solid waste drum array fire performance  

SciTech Connect (OSTI)

Fire hazards associated with drum storage of radioactively contaminated waste are a major concern in DOE waste storage facilities. This report is the second of two reports on fire testing designed to provide data relative to the propagation of a fire among storage drum arrays. The first report covers testing of individual drums subjected to an initiating fire and the development of the analytical methodology to predict fire propagation among storage drum arrays. This report is the second report, which documents the results of drum array fire tests. The purpose of the array tests was to confirm the analytical methodology developed by Phase I fire testing. These tests provide conclusive evidence that fire will not propagate from drum to drum unless an continuous fuel source other than drum contents is provided.

Louie, R.L. [Westinghouse Hanford Co., Richland, WA (United States); Haecker, C.F. [Los Alamos Technical Associates, Inc., Kennewick, WA (United States); Beitel, J.J.; Gottuck, D.T.; Rhodes, B.T.; Bayier, C.L. [Hughes Associates, Inc., Baltimore, MD (United States)

1995-09-01T23:59:59.000Z

226

Density controlled carbon nanotube array electrodes  

DOE Patents [OSTI]

CNT materials comprising aligned carbon nanotubes (CNTs) with pre-determined site densities, catalyst substrate materials for obtaining them and methods for forming aligned CNTs with controllable densities on such catalyst substrate materials are described. The fabrication of films comprising site-density controlled vertically aligned CNT arrays of the invention with variable field emission characteristics, whereby the field emission properties of the films are controlled by independently varying the length of CNTs in the aligned array within the film or by independently varying inter-tubule spacing of the CNTs within the array (site density) are disclosed. The fabrication of microelectrode arrays (MEAs) formed utilizing the carbon nanotube material of the invention is also described.

Ren, Zhifeng F. (Newton, MA); Tu, Yi (Belmont, MA)

2008-12-16T23:59:59.000Z

227

Efficient Versioning for Scientific Array Databases  

E-Print Network [OSTI]

In this paper, we describe a versioned database storage manager we are developing for the SciDB scientific database. The system is designed to efficiently store and retrieve array-oriented data, exposing a "no-overwrite" ...

Seering, Adam

228

Low-cost laser diode array  

DOE Patents [OSTI]

A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost.

Freitas, Barry L. (Livermore, CA); Skidmore, Jay A. (Livermore, CA)

1999-01-01T23:59:59.000Z

229

Low-cost laser diode array  

DOE Patents [OSTI]

A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost. 19 figs.

Freitas, B.L.; Skidmore, J.A.

1999-06-01T23:59:59.000Z

230

Electromagnetic formation flight of satellite arrays  

E-Print Network [OSTI]

Proposed methods of actuating spacecraft in sparse aperture arrays use propellant as a reaction mass. For formation flying systems, propellant becomes a critical consumable which can be quickly exhausted while maintaining ...

Kwon, Daniel W., 1980-

2005-01-01T23:59:59.000Z

231

Stimuli-responsive polymer nanotube arrays  

E-Print Network [OSTI]

Nanotube arrays, composed of materials such as carbon, titania, and zinc oxide, have shown potential as conductors, energy conversion devices, actuators, and adhesives. Such nanoscale constructs are particularly novel for ...

Chia, Khek-Khiang

2011-01-01T23:59:59.000Z

232

Simulation Methodologies for Satellite Solar Array Dynamics  

E-Print Network [OSTI]

, and control. It generally consists of two functions, i.e. free vibration analysis (modal analysis) and response analysis (steady-state and transient analysis). The thesis starts with introducing the solar array considered for our study and then continues...

Mohsenizadeh, Navid

2010-07-16T23:59:59.000Z

233

A Chandra X-ray study of the mixed-morphology supernova remnant 3C400.2  

E-Print Network [OSTI]

We present an analysis of archival Chandra observations of the mixed-morphology remnant 3C400.2. We analysed spectra of different parts of the remnant to observe if the plasma properties provide hints on the origin of the mixed-morphology class. These remnants often show overionization, which is a sign of rapid cooling of the thermal plasma, and super-solar abundances of elements which is a sign of ejecta emission. Our analysis shows that the thermal emission of 3C400.2 can be well explained by a two component non-equilibrium ionization model, of which one component is underionized, has a high temperature ($kT \\approx 3.9$ keV) and super-solar abundances, while the other component has a much lower temperature ($kT \\approx 0.14$ keV), solar abundances and shows signs of overionization. The temperature structure, abundance values and density contrast between the different model components suggest that the hot component comes from ejecta plasma, while the cooler component has an interstellar matter origin. This ...

Broersen, Sjors

2015-01-01T23:59:59.000Z

234

E-Print Network 3.0 - avalanche photodiode array Sample Search...  

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

array Search Powered by Explorit Topic List Advanced Search Sample search results for: avalanche photodiode array...

235

E-Print Network 3.0 - avalanche photodiode arrays Sample Search...  

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

arrays Search Powered by Explorit Topic List Advanced Search Sample search results for: avalanche photodiode arrays...

236

Electrostatic Modeling of CMOS sensor array 1 Computing Security  

E-Print Network [OSTI]

to Hades. #12;Electrostatic Modeling of CMOS sensor array 3 7 Kerberos Tickets Used for authentication

Cukic, Bojan

237

Rank Extraction in Tin-Oxide Sensor Arrays Page 1 of 23 Rank Extraction in Tin-Oxide Sensor Arrays  

E-Print Network [OSTI]

Rank Extraction in Tin-Oxide Sensor Arrays Page 1 of 23 Rank Extraction in Tin-Oxide Sensor Arrays the amount of data to be processed. This work is a first example in feature extraction from tin-oxide sensors element array of tin-oxide sensors is presented. Results are extrapolated to other arrays of chemical

Roppel, Thaddeus A.

238

C3c concentrations in sera of persons living in areas with different levels of air pollution in Northrhine-Westphalia (Federal Republic of Germany)  

SciTech Connect (OSTI)

A number of air pollutants is known to affect the immune system resulting in alterations of the complement activity in serum. We determined the levels of C3c, one of the activation products of the component C3, in serum samples obtained from various population groups living in areas with different levels of air pollution in Northrhine-Westphalia (FRG). The results show that the serum C3c levels tend to be increased in subjects living in areas with elevated levels of air pollution. By applying a linear regression model it can be demonstrated that a significant part of the variance of the C3c concentrations is explained by the residence area factor after making allowance for the effect of various confounders. The increase of the serum C3c concentrations appears to result from an increased activation of the complement component C3. The underlying mechanisms as well as the pathophysiological significance of these findings are unknown.

Stiller-Winkler, R.; Kraemer, U.F.; Fiedler, E.; Ewers, U.; Dolgner, R.

1989-06-01T23:59:59.000Z

239

The Sequence of Events that led to the 1963 Publications in "Nature" of 3C273, the first Quasar and the first Extragalactic Radio Jet  

E-Print Network [OSTI]

We are undertaking a detailed investigation, based on the available evidence, of the sequence of events that led to the historical discovery of the first Quasar 3C273.

Hazard, Cyril; Goss, W M; Herald, David

2014-01-01T23:59:59.000Z

240

Magnetic ordering in the ammoniated fulleride (ND{sub 3})K{sub 3}C{sub 60}  

SciTech Connect (OSTI)

Intercalation of C{sub 60} with alkali metals leads to superconducting compositions A{sub 3}C{sub 60} (A = alkali metal) with critical temperatures as high as 33 K, surpassed only by the high-{Tc} superconducting cuprates. It is well established that {Tc} increases monotonically with increasing interfullerene separation, d, as the density of states at the Fermi level, N({epsilon}{sub F}) increases. Of paramount importance is the search for new materials with larger lattice parameters in order to establish whether {Tc} can be driven to higher values or the anticipated band narrowing will lead to electron localization and a transition to a Mott insulator. Ammoniation has proven an excellent method to achieve large expansions of the fulleride unit cells, as neutral NH{sub 3} molecules coordinate to the alkali ions, leading to large effective radii for the (NH{sub 3}){sub x}A{sup +} species.

Prassides, K.; Margadonna, S.; Arcon, D.; Lappas, A.; Shimoda, Hideo; Iwasa, Yoshihiro

1999-12-08T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Process for forming transparent aerogel insulating arrays  

DOE Patents [OSTI]

An improved supercritical drying process for forming transparent silica aerogel arrays is described. The process is of the type utilizing the steps of hydrolyzing and condensing aloxides to form alcogels. A subsequent step removes the alcohol to form aerogels. The improvement includes the additional step, after alcogels are formed, of substituting a solvent, such as CO.sub.2, for the alcohol in the alcogels, the solvent having a critical temperature less than the critical temperature of the alcohol. The resulting gels are dried at a supercritical temperature for the selected solvent, such as CO.sub.2, to thereby provide a transparent aerogel array within a substantially reduced (days-to-hours) time period. The supercritical drying occurs at about 40.degree. C. instead of at about 270.degree. C. The improved process provides increased yields of large scale, structurally sound arrays. The transparent aerogel array, formed in sheets or slabs, as made in accordance with the improved process, can replace the air gap within a double glazed window, for example, to provide a substantial reduction in heat transfer. The thus formed transparent aerogel arrays may also be utilized, for example, in windows of refrigerators and ovens, or in the walls and doors thereof or as the active material in detectors for analyzing high energy elementry particles or cosmic rays.

Tewari, Param H. (Milpitas, CA); Hunt, Arlon J. (Oakland, CA)

1986-01-01T23:59:59.000Z

242

Process for forming transparent aerogel insulating arrays  

DOE Patents [OSTI]

An improved supercritical drying process for forming transparent silica aerogel arrays is described. The process is of the type utilizing the steps of hydrolyzing and condensing aloxides to form alcogels. A subsequent step removes the alcohol to form aerogels. The improvement includes the additional step, after alcogels are formed, of substituting a solvent, such as CO/sub 2/, for the alcohol in the alcogels, the solvent having a critical temperature less than the critical temperature of the alcohol. The resulting gels are dried at a supercritical temperature for the selected solvent, such as CO/sub 2/, to thereby provide a transparent aerogel array within a substantially reduced (days-to-hours) time period. The supercritical drying occurs at about 40/sup 0/C instead of at about 270/sup 0/C. The improved process provides increased yields of large scale, structurally sound arrays. The transparent aerogel array, formed in sheets or slabs, as made in accordance with the improved process, can replace the air gap within a double glazed window, for example, to provide a substantial reduction in heat transfer. The thus formed transparent aerogel arrays may also be utilized, for example, in windows of refrigerators and ovens, or in the walls and doors thereof or as the active material in detectors for analyzing high energy elementary particles or cosmic rays.

Tewari, P.H.; Hunt, A.J.

1985-09-04T23:59:59.000Z

243

Cavity cooling of an atomic array  

E-Print Network [OSTI]

While cavity cooling of a single trapped emitter was demonstrated, cooling of many particles in an array of harmonic traps needs investigation and poses a question of scalability. This work investigates the cooling of a one dimensional atomic array to the ground state of motion via the interaction with the single mode field of a high-finesse cavity. The key factor ensuring the cooling is found to be the mechanical inhomogeneity of the traps. Furthermore it is shown that the pumped cavity mode does not only mediate the cooling but also provides the necessary inhomogeneity if its periodicity differs from the one of the array. This configuration results in the ground state cooling of several tens of atoms within a few milliseconds, a timescale compatible with current experimental conditions. Moreover, the cooling rate scaling with the atom number reveals a drastic change of the dynamics with the size of the array: atoms are either cooled independently, or via collective modes. In the latter case the cavity mediated atom interaction destructively slows down the cooling as well as increases the mean occupation number, quadratically with the atom number. Finally, an order of magnitude speed up of the cooling is predicted as an outcome the optimization scheme based on the adjustment of the array versus the cavity mode periodicity.

Oxana Mishina

2014-04-16T23:59:59.000Z

244

Silicon ball grid array chip carrier  

DOE Patents [OSTI]

A ball-grid-array integrated circuit (IC) chip carrier formed from a silicon substrate is disclosed. The silicon ball-grid-array chip carrier is of particular use with ICs having peripheral bond pads which can be reconfigured to a ball-grid-array. The use of a semiconductor substrate such as silicon for forming the ball-grid-array chip carrier allows the chip carrier to be fabricated on an IC process line with, at least in part, standard IC processes. Additionally, the silicon chip carrier can include components such as transistors, resistors, capacitors, inductors and sensors to form a "smart" chip carrier which can provide added functionality and testability to one or more ICs mounted on the chip carrier. Types of functionality that can be provided on the "smart" chip carrier include boundary-scan cells, built-in test structures, signal conditioning circuitry, power conditioning circuitry, and a reconfiguration capability. The "smart" chip carrier can also be used to form specialized or application-specific ICs (ASICs) from conventional ICs. Types of sensors that can be included on the silicon ball-grid-array chip carrier include temperature sensors, pressure sensors, stress sensors, inertia or acceleration sensors, and/or chemical sensors. These sensors can be fabricated by IC processes and can include microelectromechanical (MEM) devices.

Palmer, David W. (Albuquerque, NM); Gassman, Richard A. (Greensboro, NC); Chu, Dahwey (Albuquerque, NM)

2000-01-01T23:59:59.000Z

245

Testing the photoionization models of powerful radio galaxies: Mixed line-emitting media in 3C 321  

E-Print Network [OSTI]

The photoionization models for the narrow emission line regions of powerful radio galaxies have yet to be tested in depth. To this end, we present high-quality long-slit spectroscopy of the powerful double-nucleus radio galaxy 3C 321. The data have good enough spatial resolution to be able to trace the variation in emission-line properties on kpc scales. Continuum modelling and subtraction enables the faint emission line fluxes to be measured in several regions across the emission line nebula. We plot diagnostic line-ratio diagrams and compare them with the predictions of various photoionization models, finding that the data is best fit by models which assume a mixture of optically thin and thick clouds illuminated by a power-law continuum. The emission line kinematics, line ratios and deduced physical conditions show remarkably little variation across the source. We deduce a mean electron density of 400 +/- 120 cm-3 and a mean temperature of 11500 +/- 1500 K. Assuming a single population of optically thick line-emitting clouds, we calculate a mean photoionization parameter of (1.1 +/- 0.5) x 10e-2 and hence a photoionizing photon luminosity of Q ~ 10e55 -- 10e56 photon/s/sr. This indicates a central engine as luminous as that of the powerful quasar 3C 273, yet there is no evidence for such an energetically prolific central engine at either far-infrared or radio wavelengths. We therefore conclude that the mixed-media models, which give Q ~ 5 x 10e53 -- 5 x 10e54, represent a more likely scenario. As a by-product of the continuum subtraction we infer that young stellar populations account for ~ 0.4% of the visible stellar mass in the galaxy, and that these populations are spatially extended.

T. G. Robinson; C. N. Tadhunter; D. J. Axon; A. Robinson

2000-05-10T23:59:59.000Z

246

EXPLORING THE CENTRAL SUB-PARSEC REGION OF THE {gamma}-RAY BRIGHT RADIO GALAXY 3C 84 WITH VLBA AT 43 GHz IN THE PERIOD OF 2002-2008  

SciTech Connect (OSTI)

Following the discovery of a new radio component right before the GeV {gamma}-ray detection since 2008 August by the Fermi Gamma-ray Space Telescope, we present a detailed study of the kinematics and light curve on the central sub-parsec scale of 3C 84 using the archival Very Long Baseline Array 43 GHz data covering the period between 2002 January and 2008 November. We find that the new component 'C3', previously reported by the observations with the Very Long Baseline Interferometer Exploration of Radio Astrometry, was already formed in 2003. The flux density of C3 increases moderately until 2008, and then it becomes brighter rapidly after 2008. The radio core, C1, also shows a similar trend. The apparent speed of C3 with reference to the core C1 shows moderate acceleration from 0.10c to 0.47c between 2003 November and 2008 November, but is still sub-relativistic. We further try to fit the observed broadband spectrum by the one-zone synchrotron self-Compton model using the measured apparent speed of C3. The fit can reproduce the observed {gamma}-ray emission, but does not agree with the observed radio spectral index between 22 and 43 GHz.

Suzuki, Kenta [Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan); Nagai, Hiroshi; Kino, Motoki; Kobayashi, Hideyuki [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Kataoka, Jun [Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan); Asada, Keiichi; Inoue, Makoto [Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan, R.O.C. (China); Doi, Akihiro [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Yoshinodai 3-1-1, Chuo-ku, Sagamihara 252-5210 (Japan); Orienti, Monica; Giovannini, Gabriele; Giroletti, Marcello [INAF Istituto di Radioastronomia, via Gobetti 101, 40129 Bologna (Italy); Laehteenmaeki, Anne; Tornikoski, Merja; Leon-Tavares, Jonathan [Aalto University Metsaehovi Radio Observatory, Metsaehovintie 114, FIN-02540 Kylmaelae (Finland); Bach, Uwe [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany); Kameno, Seiji [Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065 (Japan)

2012-02-20T23:59:59.000Z

247

Radiant energy receiver having improved coolant flow control means  

DOE Patents [OSTI]

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.

Hinterberger, H.

1980-10-29T23:59:59.000Z

248

Thermal imaging of plasma with a phased array antenna in QUEST  

SciTech Connect (OSTI)

A thermal imaging system to measure plasma Electron Bernstein Emission (EBE) emanating from the mode conversion region in overdense plasma is discussed. Unlike conventional ECE/EBE imaging, this diagnostics does not employ any active mechanical scanning mirrors or focusing optics to scan for the emission cones in plasma. Instead, a standard 3 3 waveguide array antenna is used as a passive receiver to collect emission from plasma and imaging reconstruction is done by accurate measurements of phase and intensity of these signals by heterodyne detection technique. A broadband noise source simulating the EBE, is installed near the expected mode conversion region and its position is successfully reconstructed using phase array technique which is done in post processing.

Mishra, Kishore, E-mail: mishra@triam.kyushu-u.ac.jp; Nagata, K.; Akimoto, R.; Banerjee, S. [IGSES, Kyushu University, Kasuga, Fukuoka 816-8580 (Japan); Idei, H.; Zushi, H.; Hanada, K.; Hasegawa, M.; Nakamura, K.; Fujisawa, A.; Nagashima, Y.; Onchi, T.; Kuzmin, A. [RIAM, Kyushu University, Kasuga, Fukuoka 816-8580 (Japan); Yamamoto, M. K. [Research Institute for Sustainable Humanosphere, Kyoto University, Uji 611-0011 (Japan)

2014-11-15T23:59:59.000Z

249

3C.PDF  

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:YearRound-Up from theDepartment(October-December 2013Lamps;5SUMMARIES | Department of10 N. 44th3676

250

C C3 C  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route Segments (not drawn to scale) NewYacoltC ,cq4-o

251

Solar Radio Burst Effects on Global Positioning System Receivers .  

E-Print Network [OSTI]

??This thesis presents a series of studies investigating solar radio burst effects on Global Positioning System (GPS) receivers along with supporting instrumentation and analysis techniques. (more)

Cerruti, Alessandro Paolo

2007-01-01T23:59:59.000Z

252

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...

253

Mary Ann Fresco receives OPM award for creating, fostering inclusive...  

National Nuclear Security Administration (NNSA)

receives OPM award for creating, fostering inclusive diversity Mary Ann Fresco, Senior Advisor to NNSA's Management and Business Office (NA-MB), was recently recognized by the...

254

A HIGH TEMPERATURE GAS RECEIVER UTILIZING SMALL PARTICLES  

E-Print Network [OSTI]

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

Hunt, Arlon

2012-01-01T23:59:59.000Z

255

Field Survey of Parabolic Trough Receiver Thermal Performance: Preprint  

SciTech Connect (OSTI)

This paper describes a technique that uses an infrared camera to evaluate the in-situ thermal performance of parabolic trough receivers at operating solar power plants.

Price, H.; Forristall, R.; Wendelin, T.; Lewandowski, A.; Moss, T.; Gummo, C.

2006-04-01T23:59:59.000Z

256

Analysis and design of CMOS ultra wideband receivers  

E-Print Network [OSTI]

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

Ranjan, Mahim

2006-01-01T23:59:59.000Z

257

SoftCast: One Video to Serve All Wireless Receivers  

E-Print Network [OSTI]

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, ...

Katabi, Dina

2009-02-07T23:59:59.000Z

258

Receiving Water Uses, Impairments, and Sources of Stormwater Pollutants  

E-Print Network [OSTI]

............................................................22 Stormwater Conveyance (Flood Prevention) .........................................................................26 Recreation (Non-Water Contact) Uses ........................................................................................................................................43 INTRODUCTION Wet-weather flow impacts on receiving waters have been historically misunderstood

Pitt, Robert E.

259

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,...

260

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...

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Waste receiving and processing facility module 1 auditable safetyanalysis  

SciTech Connect (OSTI)

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.

Bottenus, R.J.

1997-02-01T23:59:59.000Z

262

Support and maneuvering apparatus for solar energy receivers  

DOE Patents [OSTI]

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.

Murphy, Lawrence M. (Littleton, CO)

1989-01-01T23:59:59.000Z

263

Support and maneuvering apparatus for solar energy receivers  

DOE Patents [OSTI]

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.

Murphy, L.M.

1988-07-28T23:59:59.000Z

264

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...

265

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...

266

CURRENT LOS ALAMOS SFERIC ARRAY STUDIES  

SciTech Connect (OSTI)

An array of fast electric-field-change sensors has been operated in New Mexico, Texas, Florida, and Nebraska during 1998--2000 to improve identification of lightning processes responsible for VHF and optical signals detected by the FORTE satellite. Differential time of arrival methods are used to provide gee-locations of events from multi-station observations. A comparison of two dimensional location from the steric array and the National Lightning Detection Network operated by Global Atmospherics, Inc. is presented. Also, the time differences of multiple paths of the lightning signals to a station due to ionospheric reflection can be used to determine the altitude of a temporally narrow event. We present altitude determination of Compact Intracloud Discharges observed by the steric array and compare with the Kennedy Space Center Lightning Detection and Ranging (LDAR) system in Florida.

Heavner, M.J.; Smith, D.A.; Harlin, J.

2000-10-01T23:59:59.000Z

267

DEFECT ASSESSMENT USING CONFORMABLE ARRAY DATA  

SciTech Connect (OSTI)

This report covers the design and fabrication of a conformable eddy current array useful for the mapping and measurement of external corrosion on a transmission pipeline. The feasibility of the basic measuring approach was demonstrated and the general guidelines for sensor design were disclosed in a previous project. This project was concerned with design of a practical array, development of interface electronics, and design of the operation and analysis software. A prototype system was constructed, checked out, and demonstrated on natural corrosion in a field environment.

Alfred E. Crouch; Todd H. Goyen

2003-12-01T23:59:59.000Z

268

Method of fabricating a solar cell array  

DOE Patents [OSTI]

A first set of pre-tabbed solar cells are assembled in a predetermined array with at least part of each tab facing upward, each tab being fixed to a bonding pad on one cell and abutting a bonding pad on an adjacent cell. The cells are held in place with a first vacuum support. The array is then inverted onto a second vacuum support which holds the tabs firmly against the cell pads they abut. The cells are exposed to radiation to melt and reflow the solder pads for bonding the tab portions not already fixed to bonding pads to these pads.

Lazzery, Angelo G. (Oaklyn, NJ); Crouthamel, Marvin S. (Pennsauken, NJ); Coyle, Peter J. (Oaklyn, NJ)

1982-01-01T23:59:59.000Z

269

The Cherenkov Telescope Array Large Size Telescope  

E-Print Network [OSTI]

The two arrays of the Very High Energy gamma-ray observatory Cherenkov Telescope Array (CTA) will include four Large Size Telescopes (LSTs) each with a 23 m diameter dish and 28 m focal distance. These telescopes will enable CTA to achieve a low-energy threshold of 20 GeV, which is critical for important studies in astrophysics, astroparticle physics and cosmology. This work presents the key specifications and performance of the current LST design in the light of the CTA scientific objectives.

Ambrosi, G; Baba, H; Bamba, A; Barcel, M; de Almeida, U Barres; Barrio, J A; Bigas, O Blanch; Boix, J; Brunetti, L; Carmona, E; Chabanne, E; Chikawa, M; Colin, P; Conteras, J L; Cortina, J; Dazzi, F; Deangelis, A; Deleglise, G; Delgado, C; Daz, C; Dubois, F; Fiasson, A; Fink, D; Fouque, N; Freixas, L; Fruck, C; Gadola, A; Garca, R; Gascon, D; Geffroy, N; Giglietto, N; Giordano, F; Graena, F; Gunji, S; Hagiwara, R; Hamer, N; Hanabata, Y; Hassan, T; Hatanaka, K; Haubold, T; Hayashida, M; Hermel, R; Herranz, D; Hirotani, K; Inoue, S; Inoue, Y; Ioka, K; Jablonski, C; Kagaya, M; Katagiri, H; Kishimoto, T; Kodani, K; Kohri, K; Konno, Y; Koyama, S; Kubo, H; Kushida, J; Lamanna, G; Flour, T Le; Lpez-Moya, M; Lpez, R; Lorenz, E; Majumdar, P; Manalaysay, A; Mariotti, M; Martnez, G; Martnez, M; Mazin, D; Miranda, J M; Mirzoyan, R; Monteiro, I; Moralejo, A; Murase, K; Nagataki, S; Nakajima, D; Nakamori, T; Nishijima, K; Noda, K; Nozato, A; Ohira, Y; Ohishi, M; Ohoka, H; Okumura, A; Orito, R; Panazol, J L; Paneque, D; Paoletti, R; Paredes, J M; Pauletta, G; Podkladkin, S; Prast, J; Rando, R; Reimann, O; Rib, M; Rosier-Lees, S; Saito, K; Saito, T; Saito, Y; Sakaki, N; Sakonaka, R; Sanuy, A; Sasaki, H; Sawada, M; Scalzotto, V; Schultz, S; Schweizer, T; Shibata, T; Shu, S; Sieiro, J; Stamatescu, V; Steiner, S; Straumann, U; Sugawara, R; Tajima, H; Takami, H; Tanaka, S; Tanaka, M; Tejedor, L A; Terada, Y; Teshima, M; Totani, T; Ueno, H; Umehara, K; Vollhardt, A; Wagner, R; Wetteskind, H; Yamamoto, T; Yamazaki, R; Yoshida, A; Yoshida, T; Yoshikoshi, T

2013-01-01T23:59:59.000Z

270

Compound droplet manipulations on fiber arrays  

E-Print Network [OSTI]

Recent works demonstrated that fiber arrays may constitue the basis of an open digital microfluidics. Various processes, such as droplet motion, fragmentation, trapping, release, mixing and encapsulation, may be achieved on fiber arrays. However, handling a large number of tiny droplets resulting from the mixing of several liquid components is still a challenge for developing microreactors, smart sensors or microemulsifying drugs. Here, we show that the manipulation of tiny droplets onto fiber networks allows for creating compound droplets with a high complexity level. Moreover, this cost-effective and flexible method may also be implemented with optical fibers in order to develop fluorescence-based biosensor.

Weyer, Floriane; Dreesen, Laurent; Vandewalle, Nicolas

2015-01-01T23:59:59.000Z

271

Observations of Pulsar Wind Nebulae with the VERITAS Array of Imaging Atmospheric Cherenkov Telescopes  

E-Print Network [OSTI]

Many of the recently discovered galactic very high-energy (VHE) gamma-ray sources are associated with Pulsar Wind Nebulae, which is the most populous Galactic source category at TeV energies. The extended synchrotron nebulae of these objects observed in the X-ray band are a hallmark of the relativistic winds, generated by the young, energetic neutron stars, that interact with the matter ejected by the supernova explosion and the surrounding interstellar gas. Relativistic electrons, or protons, accelerated in the pulsar winds, or at their shock boundaries, interact with the magnetic field and low energy seed photons to produce the observed VHE gamma-ray emission. The VERITAS array of four imaging atmospheric Cherenkov telescopes was designed to study astrophysical sources of gamma rays in the energy domain from about 100 GeV up to several tens of TeV. The sensitivity of the VERITAS array allows detailed studies of the morphology and spectral features of gamma-ray emission from PWNe. Three northern sky PWNe, G75.2+0.1, G106.6+2.9, and 3C58, were observed with VERITAS during 2006. No evidence for TeV gamma-ray emission at the position of the pu lsar associated with these PWNe is demonstrated.

A. Konopelko; for the VERITAS collaboration

2007-09-25T23:59:59.000Z

272

Interference mitigation techniques for SAW-less CDMA receivers  

E-Print Network [OSTI]

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

Khatri, Himanshu

2009-01-01T23:59:59.000Z

273

A cryogenic receiver for EPR R. Narkowicz a,  

E-Print Network [OSTI]

A cryogenic receiver for EPR R. Narkowicz a, , H. Ogata b , E. Reijerse b , D. Suter a a Department have significantly increased the sensitivity of NMR. Here, we present a compact EPR receiver design conversion of microwave power to magnetic field permits EPR measurements with very low power levels

Suter, Dieter

274

Spoofing GPS Receiver Clock Offset of Phasor Measurement Units  

E-Print Network [OSTI]

satellites and decoding their data, the GPS receiver of a PMU estimates its own position and the offset the feasibility of a spoofing attack on the GPS receiver of a Phasor Measurement Unit (PMU). We formulate the attack as an optimization problem where the objective is to maximize the difference between the PMU

Liberzon, Daniel

275

STEAM RECEIVER MODELS FOR SOLAR DISH CONCENTRATORS: TWO MODELS COMPARED  

E-Print Network [OSTI]

with the monotube boiler direct steam generation receiver that was previously used on the SG3 dish. The higher [kW] Receiver Thermal Efficiency [%] 97 502 333 85 120 283 357 92 129 177 362 94 Table 1: Summary of Experimental run carried out on the 6th of August 2010 The overall thermal efficiency is defined as the ratio

276

Qualification test for the flexible receiver. Revision 2  

SciTech Connect (OSTI)

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.

Tedeschi, D.J.

1994-12-12T23:59:59.000Z

277

A New Compact Multichannel Receiver for Underwater Wireless Communication Networks  

E-Print Network [OSTI]

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

Abdi, Ali

278

DEFECT ASSESSMENT USING CONFORMABLE ARRAY DATA  

SciTech Connect (OSTI)

This first quarterly report of the project presents the activity and conclusions reached to date. Specifically, several of the design parameters of the field eddy current array have been determined and the overall approach to data collection and analysis selected. A kick-off meeting was held at the Clock Spring Company offices, where the project status was presented to the NETL Project Officer.

Alfred E. Crouch

2003-01-01T23:59:59.000Z

279

ROBOTIC DEVICE FOR CLEANING PHOTOVOLTAIC PANEL ARRAYS  

E-Print Network [OSTI]

-Corresponding Author, ymarkopoulos@greenproject.gr, +30-210-60.90.880 With growing costs of electricity and concern. The main method for harnessing solar power is with arrays made up of photovoltaic (PV) panels. Accumulation, and it is vital to maximize the power generating potential during daily service. The accumulation of dust

Mavroidis, Constantinos

280

Topological Order in Frustrated Josephson Junction Arrays  

E-Print Network [OSTI]

We show that electrically and magnetically frustrated Josephson junction arrays (JJAs) realize topological order with a non-trivial ground state degeneracy on manifolds with non-trivial topology. The low-energy theory has the same gauge dynamics of the unfrustrated JJAs but for different, "fractional" degrees of freedom, a principle reminescent of Jain's composite electrons in the fractional quantum Hall effect.

M. C. Diamantini; P. Sodano; C. A. Trugenberger

2008-06-02T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Superconducting Topological Fluids in Josephson Junction Arrays  

E-Print Network [OSTI]

We argue that the frustrated Josephson junction arrays may support a topologically ordered superconducting ground state, characterized by a non-trivial ground state degeneracy on the torus. This superconducting quantum fluid provides an explicit example of a system in which superconductivity arises from a topological mechanism rather than from the usual Landau-Ginzburg mechanism.

M. Cristina Diamantini; Pasquale Sodano; Carlo A. Trugenberger

2006-04-21T23:59:59.000Z

282

NO. REV. HO. ALSEP Array E Multilayer  

E-Print Network [OSTI]

that reproduc- tion multilayer printed wiring boards meet the Supplier Qualification require- ments of JPLNO. REV. HO. ALSEP Array E Multilayer Printed Circuit Board Source Qualification Test Plan ATM 988 IPAGE 1 Of DATE This document provides a test plan for source or manufacturer qualification

Rathbun, Julie A.

283

HASKELL ARRAYS, ACCELERATED Manuel M. T. Chakravarty  

E-Print Network [OSTI]

HASKELL ARRAYS, ACCELERATED USING GPUS Manuel M. T. Chakravarty University of New South Wales JOINT, memory-access patterns, etc. Portability... Monday, 7 September 2009 #12;OTHER COMPUTE ACCELERATOR ACCELERATOR ARCHITECTURES Goal: portable data parallelism Tesla T10 GPU Monday, 7 September 2009 #12;OTHER

Chakravarty, Manuel

284

Nanotubular metalinsulatormetal capacitor arrays for energy storage  

E-Print Network [OSTI]

Nanotubular metal­insulator­metal capacitor arrays for energy storage Parag Banerjee1,2 , Israel be possible to scale devices fabricated with this approach to make viable energy storage systems that provide, with speeds limited only by external circuit RCs. However, energy storage is limited because only surface

Rubloff, Gary W.

285

Adaptive and mobile ground sensor array.  

SciTech Connect (OSTI)

The goal of this LDRD was to demonstrate the use of robotic vehicles for deploying and autonomously reconfiguring seismic and acoustic sensor arrays with high (centimeter) accuracy to obtain enhancement of our capability to locate and characterize remote targets. The capability to accurately place sensors and then retrieve and reconfigure them allows sensors to be placed in phased arrays in an initial monitoring configuration and then to be reconfigured in an array tuned to the specific frequencies and directions of the selected target. This report reviews the findings and accomplishments achieved during this three-year project. This project successfully demonstrated autonomous deployment and retrieval of a payload package with an accuracy of a few centimeters using differential global positioning system (GPS) signals. It developed an autonomous, multisensor, temporally aligned, radio-frequency communication and signal processing capability, and an array optimization algorithm, which was implemented on a digital signal processor (DSP). Additionally, the project converted the existing single-threaded, monolithic robotic vehicle control code into a multi-threaded, modular control architecture that enhances the reuse of control code in future projects.

Holzrichter, Michael Warren; O'Rourke, William T.; Zenner, Jennifer; Maish, Alexander B.

2003-12-01T23:59:59.000Z

286

E-Print Network 3.0 - array shows potential Sample Search Results  

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

COVERAGE Summary: , and then shows how to apply these concepts to the testing of software. Orthogonal arrays and covering arrays... the requirements of a covering array,...

287

ARRAYS OF BOTTLES OF PLUTONIUM NITRATE SOLUTION  

SciTech Connect (OSTI)

In October and November of 1981 thirteen approaches-to-critical were performed on a remote split table machine (RSTM) in the Critical Mass Laboratory of Pacific Northwest Laboratory (PNL) in Richland, Washington using planar arrays of polyethylene bottles filled with plutonium (Pu) nitrate solution. Arrays of up to sixteen bottles were used to measure the critical number of bottles and critical array spacing with a tight fitting Plexiglas reflector on all sides of the arrays except the top. Some experiments used Plexiglas shells fitted around each bottles to determine the effect of moderation on criticality. Each bottle contained approximately 2.4 L of Pu(NO3)4 solution with a Pu content of 105 g Pu/L and a free acid molarity H+ of 5.1. The plutonium was of low 240Pu (2.9 wt.%) content. These experiments were sponsored by Rockwell Hanford Operations because of the lack of experimental data on the criticality of arrays of bottles of Pu solution such as might be found in storage and handling at the Purex Facility at Hanford. The results of these experiments were used to provide benchmark data to validate calculational codes used in criticality safety assessments of [the] plant configurations (Ref. 1). Data for this evaluation were collected from the published report (Ref. 1), the approach to critical logbook, the experimenters logbook, and communication with the primary experimenter, B. Michael Durst. Of the 13 experiments preformed 10 were evaluated. One of the experiments was not evaluated because it had been thrown out by the experimenter, one was not evaluated because it was a repeat of another experiment and the third was not evaluated because it reported the critical number of bottles as being greater than 25. Seven of the thirteen evaluated experiments were determined to be acceptable benchmark experiments. A similar experiment using uranyl nitrate was benchmarked as U233-SOL-THERM-014.

Margaret A. Marshall

2012-09-01T23:59:59.000Z

288

A Shell of Thermal X-ray Emission Associated with the Young Crab-like Remnant 3C58  

E-Print Network [OSTI]

Deep X-ray imaging spectroscopy of the bright pulsar wind nebula 3C58 confirms the existence of an embedded thermal X-ray shell surrounding the pulsar PSR J0205+6449. Radially resolved spectra obtained with the XMM-Newton telescope are well-characterized by a power-law model with the addition of a soft thermal emission component in varying proportions. These fits reproduce the well-studied increase in the spectral index with radius attributed to synchrotron burn-off of high energy electrons. Most interestingly, a radially resolved thermal component is shown to map out a shell-like structure ~6' in diameter. The presence of a strong emission line corresponding to the Ne IX He-like transition requires an overabundance of ~3 x [Ne/Ne(sun)] in the Raymond-Smith plasma model. The best-fit temperature kT ~ 0.23 keV is essentially independent of radius for the derived column density of N_H = (4.2 +/- 0.1)E21 per cm squared. Our result suggests that thermal shells can be obscured in the early evolution of a supernova...

Gotthelf, E V; Newburgh, L

2006-01-01T23:59:59.000Z

289

Possible Proton Synchrotron Origin of X-Ray & Gamma Ray Emission in Large Scale Jet of 3C 273  

E-Print Network [OSTI]

The large scale jet of quasar 3C 273 has been observed in radio to $\\gamma$ ray frequencies. Earlier the X-ray emission from knot A of this jet has been explained with inverse Compton scattering of the cosmic microwave background radiations by the shock accelerated relativistic electrons in the jet. More recently it has been shown that this mechanism overproduces the gamma ray flux at GeV energy and violates the observational results from Fermi LAT. We have considered the synchrotron emission from a broken power law spectrum of accelerated protons in the jet to explain the observed X-ray to $\\gamma$ ray flux from knot A. The two scenarios discussed in our work are (i) magnetic field is high, synchrotron energy loss time of the protons is shorter than their escape time from the knot region and the age of the jet (ii) their escape time is shorter than their synchrotron energy loss time and the age of the jet. These scenarios can explain the observed photon spectrum well for moderate values of Doppler factor. The required jet luminosity is high $\\sim 10^{46}$ erg/sec in the first scenario and moderate $\\sim 10^{45}$ erg/sec in the second, which makes the second scenario more favorable.

Esha Kundu; Nayantara Gupta

2014-06-23T23:59:59.000Z

290

HEXAGONAL ARRAY STRUCTURE FOR 2D NDE APPLICATIONS  

SciTech Connect (OSTI)

This paper describes a combination of simulation and experimentation to evaluate the advantages offered by utilizing a hexagonal shaped array element in a 2D NDE array structure. The active material is a 1-3 connectivity piezoelectric composite structure incorporating triangular shaped pillars--each hexagonal array element comprising six triangular pillars. A combination of PZFlex, COMSOL and Matlab has been used to simulate the behavior of this device microstructure, for operation around 2.25 MHz, with unimodal behavior and low levels of mechanical cross-coupling predicted. Furthermore, the application of hexagonal array elements enables the array aperture to increase by approximately 30%, compared to a conventional orthogonal array matrix and hence will provide enhanced volumetric coverage and SNR. Prototype array configurations demonstrate good corroboration of the theoretically predicted mechanical cross-coupling between adjacent array elements (approx23 dB).

Dziewierz, J.; Ramadas, S. N.; Gachagan, A.; O'Leary, R. L. [Centre for Ultrasonic Engineering, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, G1 1XW (United Kingdom)

2010-02-22T23:59:59.000Z

291

Semiconductor nanowire array: potential substrates for photocatalysis and photovoltaics  

E-Print Network [OSTI]

Semiconductor nanowire array: potential substrates for photocatalysis and photovoltaics Yiying Wu, these nanowire arrays could find unique applications in photocatalysis and photovoltaics. KEY WORDS luminescence efficiency [5,6], enhancement of thermoelectric figure of merit [7] and lowered lasing threshold

Yang, Peidong

292

Exploring the Last Electromagnetic Frontier with the Long Wavelength Array  

E-Print Network [OSTI]

LWA Science with the Long Wavelength Demonstrator Array Radio transients offer a new frontier for next-generationExploring the Last Electromagnetic Frontier with the Long Wavelength Array The University of New. All solar system giant planets generate

Ellingson, Steven W.

293

Design of a high index contrast arrayed waveguide grating  

E-Print Network [OSTI]

Arrayed waveguide gratings (AWGs) are useful structures for the implementation of wavelength division multiplexing. The AWG consists of an input splitter, a dispersive waveguide array which creates the wavelength demultiplexing ...

Lang, Ryan N. (Ryan Nathan)

2003-01-01T23:59:59.000Z

294

Trends in dish-Stirling solar receiver designs  

SciTech Connect (OSTI)

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.

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

1990-01-01T23:59:59.000Z

295

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

E-Print Network [OSTI]

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

Tekin, Ahmet; Elwan, Hassan; Pedrotti, Kenneth

2010-01-01T23:59:59.000Z

296

Proceedings of the Third EPRI Phased Array Ultrasound Seminar  

SciTech Connect (OSTI)

Phased array technology for ultrasonic examination is providing innovative solutions for nuclear in-service examination applications. EPRI has been a prime mover in the development and deployment of phased array ultrasound applications in the domestic nuclear market over the past decade. As part of this strategic effort, EPRI has hosted a series of seminars on phased array technology and its applications.

None

2003-12-01T23:59:59.000Z

297

Outlier Detection Rules for Fault Detection in Solar Photovoltaic Arrays  

E-Print Network [OSTI]

Abstract-- Solar photovoltaic (PV) arrays are unique power sources that may have uncleared fault current of solar photovoltaic (PV) systems. Different from traditional power sources, solar PV array is unique devices (OCPD). This may be caused by non-linear output characteristics of solar PV arrays, low irradiance

Lehman, Brad

298

Fast Photovoltaic Array Reconfiguration for Partial Solar Powered Vehicles  

E-Print Network [OSTI]

Fast Photovoltaic Array Reconfiguration for Partial Solar Powered Vehicles Jaemin Kim1 , Yanzhi during cruising using innovative fast photovoltaic array (PV) reconfiguration. Use of all the vehicle sur and partial PV array mounting by the car owner's driving pattern, which results in more than 20% PV cell cost

Pedram, Massoud

299

Discovery of Very High Energy Gamma-Rays from the Distant Flat Spectrum Radio Quasar 3C 279 with the MAGIC Telescope  

E-Print Network [OSTI]

The quasar 3C 279 is one of the best-studied flat spectrum radio quasars. It is located at a comparatively large redshift of z=0.536: E>100 GeV observations of such distant sources were until recently impossible both due to the expected steep energy spectrum and the expected attenuation of the gamma-rays by the extragalactic background light. Here we present results on the observation of 3C 279 with the MAGIC telescope in early 2006. We report the detection of a significant very high energy gamma-ray signal in the MAGIC energy range on the observation night of 2006 February 23.

Masahiro Teshima; Elisa Prandini; Rudolf Bock; Manel Errando; Daniel Kranich; Pratik Majumdar; Daniel Mazin; Elina Lindfors; Eckart Lorenz; Mose Mariotti; Villi Scalzotto; Robert Wagner

2007-09-10T23:59:59.000Z

300

IMPACT OF DIELECTRIC PARAMETERS ON THE REFLECTIVITY OF 3C-SiC WAFERS WITH A ROUGH SURFACE MORPHOLOGY IN THE RESTSTRAHLEN REGION  

SciTech Connect (OSTI)

A layer-on-substrate model is used to obtain the infrared reflectance for 3C-SiC with a rough surface morphology. The effect of varying dielectric parameters of the damaged layer on the observed reflectivity of the 3C-SiC in the reststrahlen region is assessed. Different simulated reflectance spectra are obtained to those if the dielectric parameters of the substrate were varied. Most notable changes in the shape of the simulated reststrahlen peak are observed for changes in the high frequency dielectric constant, the phonon damping constant, the phonon frequencies and thickness of damaged surface layer.

J.A.A. Engelbrecht; E. Janzn; A. Henry; I.J. van Rooyen

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

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...

302

Particle Receiver Integrated with Fluidized Bed (Fact Sheet)  

SciTech Connect (OSTI)

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.

Not Available

2012-09-01T23:59:59.000Z

303

Secretary Chu Announces 69 Early Career Scientists to Receive...  

Office of Environmental Management (EM)

an award, a researcher must be an untenured, tenure-track assistant professor at a U.S. academic institution or a full-time employee at a DOE national laboratory, who received a...

304

Secretary Chu Announces 68 Scientists to Receive Early Career...  

Office of Environmental Management (EM)

researcher must be an untenured, tenure-track assistant or associate professor at a U.S. academic institution or a full-time employee at a DOE national laboratory, who received a...

305

Energy Department Announces 61 Scientists to Receive Early Career...  

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

researcher must be an untenured, tenure-track assistant or associate professor at a U.S. academic institution or a full-time employee at a national laboratory who has received a...

306

GPS receiver self survey and attitude determination using pseudolite signals  

E-Print Network [OSTI]

survey. A new algorithm to estimate these parameters from a GPS receiver is developed usingnonlinear batch ?lteringmethods.For convergence issues, both the nolinear least squares (NLS) and Levenberg-Marquardt (LM) methods are applied in the estimation...

Park, Keun Joo

2004-11-15T23:59:59.000Z

307

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

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

Carbon Dioxide Cycles Brayton logo Brayton Energy, under the 2012 SunShot Concentrating Solar Power (CSP) R&D FOA, is building and testing a new solar receiver that uses...

308

High performance CMOS integrated circuits for optical receivers  

E-Print Network [OSTI]

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...

SamadiBoroujeni, MohammadReza

2009-05-15T23:59:59.000Z

309

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

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

to receive the Platinum scholarship, which provides 7,500 a year for four years. Los Alamos High School senior Alexandr Wang and Santa Fe High School senior Greta Miller are...

310

High-Temperature Falling-Particle Receiver (Fact Sheet)  

SciTech Connect (OSTI)

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.

Not Available

2012-09-01T23:59:59.000Z

311

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...

312

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...

313

Administering truncated receive functions in a parallel messaging interface  

DOE Patents [OSTI]

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.

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

2014-12-09T23:59:59.000Z

314

High-Flux Microchannel Solar Receiver (Fact Sheet)  

SciTech Connect (OSTI)

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.

Not Available

2012-09-01T23:59:59.000Z

315

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

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

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...

316

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

E-Print Network [OSTI]

"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

Minnesota, University of

317

CHANDRA X-RAY OBSERVATIONS OF THE REDSHIFT 1.53 RADIO-LOUD QUASAR 3C 270.1  

SciTech Connect (OSTI)

Chandra X-ray observations of the high redshift (z = 1.532) radio-loud quasar 3C 270.1 in 2008 February show the nucleus to have a power-law spectrum, {Gamma} = 1.66 {+-} 0.08, typical of a radio-loud quasar, and a marginally detected Fe K{alpha} emission line. The data also reveal extended X-ray emission, about half of which is associated with the radio emission from this source. The southern emission is co-spatial with the radio lobe and peaks at the position of the double radio hot spot. Modeling this hot spot, including Spitzer upper limits, rules out synchrotron emission from a single power-law population of electrons, favoring inverse Compton emission with a field of {approx}11 nT, roughly a third of the equipartition value. The northern emission is concentrated close to the location of a 40 Degree-Sign bend where the radio jet is presumed to encounter an external medium. It can be explained by inverse Compton emission involving cosmic microwave background photons with a field of {approx}3 nT, a factor of 7-10 below the equipartition value. The remaining, more diffuse X-ray emission is harder (HR = -0.09 {+-} 0.22). With only 22.8 {+-} 5.6 counts, the spectral form cannot be constrained. Assuming thermal emission with a temperature of 4 keV yields an estimate for the luminosity of 1.8 Multiplication-Sign 10{sup 44} erg s{sup -1}, consistent with the luminosity-temperature relation of lower-redshift clusters. However, deeper Chandra X-ray observations are required to delineate the spatial distribution and better constrain the spectrum of the diffuse emission to verify that we have detected X-ray emission from a high-redshift cluster.

Wilkes, Belinda J.; Lal, Dharam V.; Willner, S. P.; Ashby, M. L. N.; Fazio, G. G. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Worrall, D. M.; Birkinshaw, Mark [HH Wills Physics Laboratory, University of Bristol, Bristol (United Kingdom); Haas, Martin; Chini, Rolf [Astronomisches Institut, Ruhr-University, Bochum (Germany); Antonucci, Robert [Department of Physics, University of California, Santa Barbara, CA 93106 (United States); Avara, Mark [Department of Astronomy, University of Maryland, College Park, MD 20742-2421 (United States); Barthel, Peter [Kapteyn Astronomical Institute, University of Groningen, Groningen (Netherlands); Hardcastle, Martin [School of Physics and Astronomy, University of Hertfordshire, Hatfield (United Kingdom); Lawrence, Charles [JPL, Pasadena, CA 91109 (United States); Leipski, Christian [MPIA, Heidelberg (Germany); Ogle, Patrick [Spitzer Science Center, Caltech, Pasadena, CA 91125 (United States); Schulz, Bernhard [IPAC, Caltech, Pasadena, CA 91125 (United States)

2012-01-20T23:59:59.000Z

318

BROADBAND JET EMISSION IN YOUNG AND POWERFUL RADIO SOURCES: THE CASE OF THE COMPACT STEEP SPECTRUM QUASAR 3C 186  

SciTech Connect (OSTI)

We present the X-ray analysis of a deep ({approx}200 ks) Chandra observation of the compact steep spectrum radio-loud quasar 3C 186 (z = 1.06) and investigate the contribution of the unresolved radio jet to the total X-ray emission. The spectral analysis is not conclusive on the origin of the bulk of the X-ray emission. In order to examine the jet contribution to the X-ray flux, we model the quasar spectral energy distribution, adopting several scenarios for the jet emission. For the values of the main physical parameters favored by the observables, a dominant role of the jet emission in the X-ray band is ruled out when a single-zone (leptonic) scenario is adopted, even including the contribution of the external photon fields as seed photons for inverse Compton emission. We then consider a structured jet, with the blazar component that-although not directly visible in the X-ray band-provides an intense field of seed synchrotron photons Compton-scattered by electrons in a mildly relativistic knot. In this case, the whole X-ray emission can be accounted for if we assume a blazar luminosity within the range observed from flat spectrum radio quasars. The X-ray radiative efficiency of such a (structured) jet is intimately related to the presence of a complex velocity structure. The jet emission can provide a significant contribution in X-rays if it decelerates within the host galaxy on kiloparsec scales. We discuss the implications of this model in terms of jet dynamics and interaction with the ambient medium.

Migliori, Giulia; Siemiginowska, Aneta [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Celotti, Annalisa, E-mail: migliori@cfa.harvard.edu [SISSA, Via Bonomea 265, I-34136 Trieste (Italy)

2012-04-20T23:59:59.000Z

319

Hybrid solar central receiver for combined cycle power plant  

DOE Patents [OSTI]

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.

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

1995-05-23T23:59:59.000Z

320

Hybrid solar central receiver for combined cycle power plant  

DOE Patents [OSTI]

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.

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

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Integrated field emission array for ion desorption  

DOE Patents [OSTI]

An integrated field emission array for ion desorption includes an electrically conductive substrate; a dielectric layer lying over the electrically conductive substrate comprising a plurality of laterally separated cavities extending through the dielectric layer; a like plurality of conically-shaped emitter tips on posts, each emitter tip/post disposed concentrically within a laterally separated cavity and electrically contacting the substrate; and a gate electrode structure lying over the dielectric layer, including a like plurality of circular gate apertures, each gate aperture disposed concentrically above an emitter tip/post to provide a like plurality of annular gate electrodes and wherein the lower edge of each annular gate electrode proximate the like emitter tip/post is rounded. Also disclosed herein are methods for fabricating an integrated field emission array.

Resnick, Paul J; Hertz, Kristin L; Holland, Christopher; Chichester, David; Schwoebel, Paul

2013-09-17T23:59:59.000Z

322

Development of the Astro Edge solar array  

SciTech Connect (OSTI)

The Astro Edge solar array is a new and innovative low concentrator power generating system which has been selected for CTA Incorporated`s NASA Small Spacecraft Technology Initiative (SSTI) program. Under the program, Astro will design, develop, produce and qualify two flight Astro Edge wings to support a July 1996 launch of the SSTI SmallSat dubbed ``CLARK``. The Astro Edge was selected as a new technology to benefit future NASA and commercial missions by providing high specific power, high stiffness, low risk, low stowed volume, reliability, light weight, and cost reduction features to meet the agency`s better, faster, cheaper goals. A brief program overview of design requirements, configuration, subsystem description, analysis, and planned testing of the SSTI Astro Edge solar array is discussed.

Spence, B.R.; Marks, G.W. [Astro Aerospace Corp., Carpinteria, CA (United States)

1994-12-31T23:59:59.000Z

323

Screening current effects in Josephson junction arrays  

E-Print Network [OSTI]

The purpose of this work is to compare the dynamics of arrays of Josephson junctions in presence of magnetic field in two different frameworks: the so called XY frustrated model with no self inductance and an approach that takes into account the screening currents (considering self inductances only). We show that while for a range of parameters the simpler model is sufficiently accurate, in a region of the parameter space solutions arise that are not contained in the XY model equations.

A. Petraglia; G. Filatrella; G. Rotoli

1995-07-28T23:59:59.000Z

324

Calibrating the MKAR array using transfer functions  

SciTech Connect (OSTI)

Developing regional discriminants (RDs) at any given seismic station requires a ground-truth database of waveforms from both earthquakes and explosions. Recently installed stations used for seismic monitoring have no single charge explosions on which to base discriminants. We have developed a procedure to map information from surrogate stations, having a long recording history, to newly installed operational stations. We investigated a method to compute transfer functions using known effective 13Ds for a database of earthquakes and explosions located near the Lop Nor nuclear test site and recorded at the KNET array in Kyrgyzstan. For specific source-station paths, transfer functions work well. However, preliminary analysis of India and Pakistan nuclear tests indicate strong azimuthal dependence in the construction of reliable transfer functions. The success of the preliminary work suggests we can apply the same technique to calibrate the recently installed MKAR array using the Global Seismic Network station MAKZ as a surrogate. Both MKAR, an 11-element array operational since 2000, and MAKZ (including its earlier counterpart MAK), operating very broadband instruments since 1994, are located in Eastern Kazakhstan and separated by 25 km. To perform the calibration requires additional considerations not taken into account during the initial investigation: (1) utilizing amplitude spectra, rather than using RDs, to calculate transfer functions; (2) computing transfer functions for a range of azimuths, as we believe the transfer function are azimuthally dependent; and (3) determining whether working with each array element separately or developing a single-input/multiple-output model will provide more stable results and better error estimates.

Renwald, M. D. (Marie D.); Taylor, S. R. (Steven R.); Wallace, Terry C.

2003-01-01T23:59:59.000Z

325

Multinozzle Emitter Arrays for Nanoelectrospray Mass Spectrometry  

SciTech Connect (OSTI)

Mass spectrometry (MS) is the enabling technology for proteomics and metabolomics. However, dramatic improvements in both sensitivity and throughput are still required to achieve routine MS-based single cell proteomics and metabolomics. Here, we report the silicon-based monolithic multinozzle emitter array (MEA), and demonstrate its proof-of-principle applications in high-sensitivity and high-throughput nanoelectrospray mass spectrometry. Our MEA consists of 96 identical 10-nozzle emitters in a circular array on a 3-inch silicon chip. The geometry and configuration of the emitters, the dimension and number of the nozzles, and the micropillar arrays embedded in the main channel, can be systematically and precisely controlled during the microfabrication process. Combining electrostatic simulation and experimental testing, we demonstrated that sharpened-end geometry at the stem of the individual multinozzle emitter significantly enhanced the electric fields at its protruding nozzle tips, enabling sequential nanoelectrospray for the high-density emitter array. We showed that electrospray current of the multinozzle emitter at a given total flow rate was approximately proportional to the square root of the number of its spraying-nozzles, suggesting the capability of high MS sensitivity for multinozzle emitters. Using a conventional Z-spray mass spectrometer, we demonstrated reproducible MS detection of peptides and proteins for serial MEA emitters, achieving sensitivity and stability comparable to the commercial capillary emitters. Our robust silicon-based MEA chip opens up the possibility of a fully-integrated microfluidic system for ultrahigh-sensitivity and ultrahigh-throughput proteomics and metabolomics.

Mao, Pan; Wang, Hung-Ta; Yang, Peidong; Wang, Daojing

2011-06-16T23:59:59.000Z

326

Bipolar battery with array of sealed cells  

DOE Patents [OSTI]

A lithium alloy/metal sulfide battery as a dipolar battery is disclosed with an array of stacked cells with the anode and cathode electrode materials in each cell sealed in a confining structure and separated from one another except across separator material interposed therebetween. The separator material is contained in a module having separate perforated metallic sheets that sandwich opposite sides of the separator material for the cell and an annular insulating spacer that surrounds the separator material beyond the perforations and is also sandwiched between and sealed to the sheets. The peripheral edges of the sheets project outwardly beyond the spacer, traverse the side edges of the adjacent electrode material to form cup-like electrode holders, and are fused to the adjacent current collector or end face members of the array. Electrolyte is infused into the electrolyte cavity through the perforations of one of the metallic sheets with the perforations also functioning to allow ionic conductance across the separator material between the adjacent electrodes. A gas-tight housing provides an enclosure of the array.

Kaun, Thomas D. (New Lenox, IL); Smaga, John A. (Lemont, IL)

1987-01-01T23:59:59.000Z

327

The Murchison Widefield Array: Design Overview  

E-Print Network [OSTI]

The Murchison Widefield Array (MWA) is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of science investigations, but is initially focused on three key science projects. These are detection and characterization of 3-dimensional brightness temperature fluctuations in the 21cm line of neutral hydrogen during the Epoch of Reionization (EoR) at redshifts from 6 to 10, solar imaging and remote sensing of the inner heliosphere via propagation effects on signals from distant background sources,and high-sensitivity exploration of the variable radio sky. The array design features 8192 dual-polarization broad-band active dipoles, arranged into 512 tiles comprising 16 dipoles each. The tiles are quasi-randomly distributed over an aperture 1.5km in diameter, with a small number of outliers extending to 3km. All tile-tile baselines are correlated in custom FPGA-based hardware, yielding a Nyquist-sampled instantaneous monochromatic uv co...

Lonsdale, Colin J; Morales, Miguel F; Briggs, Frank H; Benkevitch, Leonid; Bowman, Judd D; Bunton, John D; Burns, Steven; Corey, Brian E; deSouza, Ludi; Doeleman, Sheperd S; Derome, Mark; Deshpande, Avinash; Gopalakrishna, M R; Greenhill, Lincoln J; Herne, David; Hewitt, Jacqueline N; Kamini, P A; Kasper, Justin C; Kincaid, Barton B; Kocz, Jonathan; Kowald, Errol; Kratzenberg, Eric; Kumar, Deepak; Lynch, Mervyn J; Madhavi, S; Matejek, Michael; Mitchell, Daniel; Morgan, Edward; Oberoi, Divya; Ord, Steven; Pathikulangara, Joseph; Prabu, T; Rogers, Alan E E; Roshi, Anish; Salah, Joseph E; Sault, Robert J; Shankar, N Udaya; Srivani, K S; Stevens, Jamie; Tingay, Steven; Vaccarella, Annino; Waterson, Mark; Wayth, Randall B; Webster, Rachel L; Whitney, Alan R; Williams, Andrew; Williams, Christopher

2009-01-01T23:59:59.000Z

328

A CHANDRA OBSERVATION OF 3C 288REHEATING THE COOL CORE OF A 3 keV CLUSTER FROM A NUCLEAR OUTBURST at z = 0.246  

E-Print Network [OSTI]

We present results from a 42 ks Chandra/ACIS-S observation of the transitional FR I/FR II radio galaxy 3C 288 at z = 0.246. We detect ~3 keV gas extending to a radius of ~0.5 Mpc with a 0.5-2.0 keV luminosity of 6.6 ...

Lal, D. V.

329

FIRST-PRINCIPLES CALCULATIONS OF CHARGE STATES AND FORMATION ENERGIES OF Mg, Al, and Be TRANSMUTANTS IN 3C-SiC  

SciTech Connect (OSTI)

The Vienna Ab-initio Simulation Package (VASP) is employed to calculate charge states and the formation energies of Mg, Al and Be transmutants at different lattice sites in 3C-SiC. The results provide important information on the dependence of the most stable charge state and formation energy of Mg, Al, Be and vacancies on electron potentials.

Hu, Shenyang Y.; Setyawan, Wahyu; Jiang, Weilin; Henager, Charles H.; Kurtz, Richard J.

2014-08-28T23:59:59.000Z

330

Combustion synthesized nanocrystalline Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C cathode for lithium-ion batteries  

SciTech Connect (OSTI)

Graphical abstract: Nanocrystalline Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C compound has been synthesized using a novel corn assisted combustion (CAC) method, wherein the composite prepared at 850 C is found to exhibit superior physical and electrochemical properties than the one synthesized at 800 C (Fig. 1). Despite the charge disproportionation of V{sup 4+} and a possible solid solution behavior of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} cathode upon insertion and de-insertion of Li{sup +} ions, the structural stability of the same is appreciable, even with the extraction of third lithium at 4.6 V (Fig. 2). An appreciable specific capacity of 174 mAh g{sup ?1} with an excellent columbic efficiency (99%) and better capacity retention upon high rate applications have been exhibited by Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C cathode, thus demonstrating the feasibility of CAC method in preparing the title compound to best suit with the needs of lithium battery applications. Display Omitted Highlights: ? Novel corn assisted combustion method has been used to synthesize Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C. ? Corn is a cheap and eco benign combustible fuel to facilitate CAC synthesis. ? Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C exhibits an appreciable specific capacity of 174 mAh g{sup ?1} (C/10 rate). ? Currently observed columbic efficiency of 99% is better than the reported behavior. ? Suitability of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C cathode up to 10C rate is demonstrated. -- Abstract: Nanocrystalline Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C composite synthesized using a novel corn assisted combustion method at 850 C exhibits superior physical and electrochemical properties than the one synthesized at 800 C. Despite the charge disproportionation of V{sup 4+} and a possible solid solution behavior of Li{sub 3}V{sub 2}(PO{sub 4}){sub 3} cathode upon insertion and extraction of Li{sup +} ions, the structural stability of the same is appreciable, even with the extraction of third lithium at 4.6 V. An appreciable specific capacity of 174 mAh g{sup ?1} and better capacity retention upon high rate applications have been exhibited by Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/C cathode, thus demonstrating the suitability of the same for lithium-ion battery applications.

Nathiya, K.; Bhuvaneswari, D.; Gangulibabu [Central Electrochemical Research Institute, Karaikudi 630006 (India)] [Central Electrochemical Research Institute, Karaikudi 630006 (India); Kalaiselvi, N., E-mail: kalaiselvicecri@gmail.com [Central Electrochemical Research Institute, Karaikudi 630006 (India)

2012-12-15T23:59:59.000Z

331

Arrays of ultrathin silicon solar microcells  

DOE Patents [OSTI]

Provided are solar cells, photovoltaics and related methods for making solar cells, wherein the solar cell is made of ultrathin solar grade or low quality silicon. In an aspect, the invention is a method of making a solar cell by providing a solar cell substrate having a receiving surface and assembling a printable semiconductor element on the receiving surface of the substrate via contact printing. The semiconductor element has a thickness that is less than or equal to 100 .mu.m and, for example, is made from low grade Si.

Rogers, John A; Rockett, Angus A; Nuzzo, Ralph; Yoon, Jongseung; Baca, Alfred

2014-03-25T23:59:59.000Z

332

Array of aligned and dispersed carbon nanotubes and method of producing the array  

DOE Patents [OSTI]

An array of aligned and dispersed carbon nanotubes includes an elongate drawn body including a plurality of channels extending therethrough from a first end to a second end of the body, where the channels have a number density of at least about 100,000 channels/mm.sup.2 over a transverse cross-section of the body. A plurality of carbon nanotubes are disposed in each channel, and the carbon nanotubes are sufficiently dispersed and aligned along a length of the channels for the array to comprise an average resistivity per channel of about 9700 .OMEGA.m or less.

Ivanov, Ilia N; Simpson, John T; Hendricks, Troy R

2013-06-11T23:59:59.000Z

333

Array of aligned and dispersed carbon nanotubes and method of producing the array  

DOE Patents [OSTI]

An array of aligned and dispersed carbon nanotubes includes an elongate drawn body including a plurality of channels extending therethrough from a first end to a second end of the body, where the channels have a number density of at least about 100,000 channels/mm.sup.2 over a transverse cross-section of the body. A plurality of carbon nanotubes are disposed in each channel, and the carbon nanotubes are sufficiently dispersed and aligned along a length of the channels for the array to comprise an average resistivity per channel of about 9700 .OMEGA.m or less.

Ivanov, Ilia N. (Knoxville, TN); Simpson, John T. (Clinton, TN); Hendricks, Troy R. (Knoxville, TN)

2012-06-19T23:59:59.000Z

334

Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems  

E-Print Network [OSTI]

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.

Sridharan, Gokul

2010-01-01T23:59:59.000Z

335

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

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

FE Paulsson, Inc. SCNGO FY13-1424 months Gary Covatch Van Nuys, CA A 1,000 Level Drill Pipe Deployed Fiber Optic 3C Receiver Array for Deep Boreholes Design and build a 100 level...

336

Wide-band heterodyne receiver development for effluent measurements  

SciTech Connect (OSTI)

Oak Ridge National Laboratory (ORNL) has been developing advanced infrared heterodyne receivers for plasma diagnostics in fusion reactors for over 20 years. Passive heterodyne radiometry in the LWIR region of the spectrum has historically been restricted by HgCdTe (MCT) detector technology to receiver bandwidths of only 2 GHz. Given typical atmospheric line widths of approximately 3 GHz, a CO{sub 2} (or isotope) laser local oscillator with an average line spacing of 50 GHz, and an MCT detector, only chemical species whose absorptions fall directly on top of laser lines can be measured. Thus, with traditional narrow-band heterodyne radiometry, much of the LWIR spectrum is missed and the less complex direct detection DIAL has been the preferred technique in remote sensing applications. Wide-band heterodyne receivers offer significant improvements in remote measurement capability. Progress at the Institute for Microstructural Sciences (IMS) at National Research Council of Canada and at ORNL in wide-band quantum-well infrared photodetectors (QIPs) and receivers is significantly enhancing the bandwidth capabilities of heterodyne radiometers. ORNL recently made measurements in the lab using QWIPs developed at IMS that demonstrate heterodyne quantum efficiencies of 5% with a heterodyne bandwidth of 7 GHz. The path forward indicates that > 10% heterodyne quantum efficiencies and 30-GHz bandwidths are achievable with current QWIP technology. With a chopped, 30-GHz passive heterodyne receiver, a much larger portion of the LWIR spectrum can now be covered. One potential advantage of wide-band heterodyne receivers for effluent measurements is to dramatically reduce the number of laser lines needed to characterize and distinguish multiple chemical species of interest. In the following paper, the authors discuss this and other implications of these new technologies to the characterization of effluents using both passive heterodyne radiometry and thermo-luminescence.

Hutchinson, D.P.; Richards, R.K.; Simpson, M.L.; Bennett, C.A. [Oak Ridge National Lab., TN (United States); Liu, H.C.; Buchanan, M. [National Research Council of Canada (Canada)

1998-05-01T23:59:59.000Z

337

Heat Pipe Solar Receiver Development Activities at Sandia National Laboratories  

SciTech Connect (OSTI)

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.

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

1999-01-08T23:59:59.000Z

338

PV array simulator development and validation.  

SciTech Connect (OSTI)

The ability to harvest all available energy from a photovoltaic (PV) array is essential if new system developments are to meet levelized cost of energy targets and achieve grid parity with conventional centralized utility power. Therefore, exercising maximum power point tracking (MPPT) algorithms, dynamic irradiance condition operation and startup and shutdown routines and evaluating inverter performance with various PV module fill-factor characteristics must be performed with a repeatable, reliable PV source. Sandia National Laboratories is collaborating with Ametek Programmable Power to develop and demonstrate a multi-port TerraSAS PV array simulator. The simulator will replicate challenging PV module profiles, enabling the evaluation of inverter performance through analyses of the parameters listed above. Energy harvest algorithms have traditionally implemented methods that successfully utilize available energy. However, the quantification of energy capture has always been difficult to conduct, specifically when characterizing the inverter performance under non-reproducible dynamic irradiance conditions. Theoretical models of the MPPT algorithms can simulate capture effectiveness, but full validation requires a DC source with representative field effects. The DC source being developed by Ametek and validated by Sandia is a fully integrated system that can simulate an IV curve from the Solar Advisor Model (SAM) module data base. The PV simulator allows the user to change the fill factor by programming the maximum power point voltage and current parameters and the open circuit voltage and short circuit current. The integrated PV simulator can incorporate captured irradiance and module temperature data files for playback, and scripted profiles can be generated to validate new emerging hardware embedded with existing and evolving MPPT algorithms. Since the simulator has multiple independent outputs, it also has the flexibility to evaluate an inverter with multiple MPPT DC inputs. The flexibility of the PV simulator enables the validation of the inverter's capability to handle vastly different array configurations.

Kuszmaul, Scott S.; Gonzalez, Sigifredo; Lucca, Roberto (Ametek Programmable Power, San Diego, CA); Deuel, Don (Ametek Programmable Power, San Diego, CA)

2010-06-01T23:59:59.000Z

339

Testing of Stirling engine solar reflux heat-pipe receivers  

SciTech Connect (OSTI)

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.

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

1993-07-01T23:59:59.000Z

340

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.

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Plasmon resonant cavities in vertical nanowire arrays  

DOE Patents [OSTI]

Tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides are presented. Resonances can be observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides can satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors of over 10.sup.3 are possible due to plasmon focusing in the inter-wire space.

Bora, Mihail; Bond, Tiziana C.; Fasenfest, Benjamin J.; Behymer, Elaine M.

2014-07-15T23:59:59.000Z

342

Dissipative plasmon solitons in graphene nanodisk arrays  

E-Print Network [OSTI]

We study nonlinear modes in one-dimensional arrays of doped graphene nanodisks with Kerr-type nonlinear response in the presence of an external electric field. We present the theoretical model describing the evolution of the disks' polarizations, taking into account intrinsic graphene losses and dipole-dipole coupling between the graphene nanodisks. We reveal that this nonlinear system can support discrete dissipative scalar solitons of both longitudinal and transverse polarizations, as well as vector solitons composed of two mutually coupled polarization components. We demonstrate the formation of stable resting and moving localized modes under controlling guidance of the external driving field.

Smirnova, Daria A; Smirnov, Lev A; Kivshar, Yuri S

2014-01-01T23:59:59.000Z

343

Methods for validating the presence of and characterizing proteins deposited onto an array  

DOE Patents [OSTI]

A method of determining if proteins have been transferred from liquid-phase protein fractions to an array comprising staining the array with a total protein stain and imaging the array, optionally comparing the staining with a standard curve generated by staining known amounts of a known protein on the same or a similar array; a method of characterizing proteins transferred from liquid-phase protein fractions to an array including staining the array with a post-translational modification-specific (PTM-specific) stain and imaging the array and, optionally, after staining the array with a PTM-specific stain and imaging the array, washing the array, re-staining the array with a total protein stain, imaging the array, and comparing the imaging with the PTM-specific stain with the imaging with the total protein stain; stained arrays; and images of stained arrays.

Schabacker, Daniel S. (Naperville, IL)

2010-09-21T23:59:59.000Z

344

Acoustic Array Development for Wind Turbine Noise Characterization  

SciTech Connect (OSTI)

This report discusses the design and use of a multi-arm, logarithmic spiral acoustic array by the National Renewable Energy Laboratory (NREL) for measurement and characterization of wind turbine-generated noise. The array was developed in collaboration with a team from the University of Colorado Boulder. This design process is a continuation of the elliptical array design work done by Simley. A description of the array system design process is presented, including array shape design, mechanical design, design of electronics and the data acquisition system, and development of post-processing software. System testing and calibration methods are detailed. Results from the initial data acquisition campaign are offered and discussed. Issues faced during this initial deployment of the array are presented and potential remedies discussed.

Buck, S.; Roadman, J.; Moriarty, P.; Palo, S.

2013-11-01T23:59:59.000Z

345

Coordinated garbage collection for raid array of solid state disks  

SciTech Connect (OSTI)

An optimized redundant array of solid state devices may include an array of one or more optimized solid-state devices and a controller coupled to the solid-state devices for managing the solid-state devices. The controller may be configured to globally coordinate the garbage collection activities of each of said optimized solid-state devices, for instance, to minimize the degraded performance time and increase the optimal performance time of the entire array of devices.

Dillow, David A; Ki, Youngjae; Oral, Hakki S; Shipman, Galen M; Wang, Feiyi

2014-04-29T23:59:59.000Z

346

Design of series-parallel connected thermionic converter arrays  

SciTech Connect (OSTI)

Applications of thermionic converters require that a large number of converters be connected together in a series-parallel array in order to provide a useful output voltage. Such an array also serves to insure a very high overall system reliability, despite possible failures of individual converters. This paper predicts the effects of a nonuniform distribution of input power on the performance of such an array. 9 refs.

Mcvey, J.B.; Britt, E.J.; Fitzpatrick, G.O.; Dick, R.S.

1981-01-01T23:59:59.000Z

347

Optimization of Energy Detector Receivers for UWB Systems  

E-Print Network [OSTI]

desired characteristics like the increased potential of achieving high data rates, low transmission powerOptimization of Energy Detector Receivers for UWB Systems Mustafa E. S¸ahin, Ismail G¨uvenc¸, and H¨useyin Arslan Electrical Engineering Department, University of South Florida 4202 E. Fowler Avenue, ENB-118

Arslan, Hüseyin

348

Development of RF CMOS receiver front-ends for ultrawideband  

E-Print Network [OSTI]

demonstrates two different solutions for the RF front-end designs in the UWB receivers, one is distributed topology, and the other is based on traditional lumped element topology. The distributed amplifier is one of the attractive candidates for UWB Low Noise...

Guan, Xin

2009-05-15T23:59:59.000Z

349

A Wideband OOK Receiver for Wireless Capsule Yanping Zhou# 1  

E-Print Network [OSTI]

. 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

Nam, Sangwook

350

Performance of Civil Aviation Receivers during Maximum Solar Activity Events  

E-Print Network [OSTI]

Performance of Civil Aviation Receivers during Maximum Solar Activity Events Lina DEAMBROGIO on the fields of ionosphere scintillations, solar energetic particles and on the implementation of operational the upcoming period of high solar activity. Emilien ROBERT got his PhD in 2005 and started to work on behalf

Boyer, Edmond

351

Received 11 January 2002 Accepted 1 March 2002  

E-Print Network [OSTI]

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

Pratt, Stephen

352

Solar central receiver technology: the Solar Two Project  

SciTech Connect (OSTI)

Solar Two will be the world`s largest operating solar central receiver power plant. It is expected to begin operating in April 1996; it is currently undergoing start-up and checkout. The plant will use sunlight reflected from 1926 sun-tracking mirrors to heat molten nitrate salt flowing in a heat exchanger (receiver) that sits atop a 200 foot tower. The heated salt will be stored in a tank for use, when needed, to generate superheated steam for producing electricity with a conventional Rankine-cycle turbine/generator. The purpose of the project is to validate molten-salt solar central receiver technology and to reduce the perceived risks associated with the first full-scale commercial plants. Already, much has been learned during the project including the effects of trace contaminants in the salt and the large effect of wind on the receiver. There is also much that remains to be learned. This report describes the technical status of the Solar Two project including a summary of lessons learned to date.

Sutherland, J.P. [Southern California Edison Co., Irwindale, CA (United States)

1996-05-01T23:59:59.000Z

353

Power generation considerations in a solar biomodal receiver  

SciTech Connect (OSTI)

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.

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

1996-12-31T23:59:59.000Z

354

EM-Led Radiological Incident Response Program Receives Honors  

Broader source: Energy.gov [DOE]

A program led by EMs Carlsbad Field Office (CBFO) that coordinates analytical capabilities throughout DOE for response to potential national radiological incidents recently received recognition for the best-in-track poster at a waste management conference earlier this year.

355

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

356

Published in IET Communications Received on 14th February 2013  

E-Print Network [OSTI]

interest in green communication techniques which aim to design energy efficient communication networks. The concept of green communications encompasses the whole of wireless communication life cycle, includingPublished in IET Communications Received on 14th February 2013 Revised on 21st May 2013 Accepted

Wang, Cheng-Xiang

357

BLIND RECEIVERS FOR MISO COMMUNICATION SYSTEMS USING A NONLINEAR PRECODER  

E-Print Network [OSTI]

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

Paris-Sud XI, Universit de

358

Bluetooth/WLAN receiver design methodology and IC implementations  

E-Print Network [OSTI]

...........................................................127 5.3.9. Combined Effects ....................................................................128 5.4. From Standard to Block Specifications................................................130 5.4.1. From Standard to Receiver Specifications... with three stations using Wi-Fi............................21 Fig. 2.8 A simple infrastructure network using Wi-Fi...................................................21 Fig. 2.9 Construction of the CCK modulated signal...

Emira, Ahmed Ahmed Eladawy

2004-09-30T23:59:59.000Z

359

Received 9 June 2004 Accepted 25 June 2004  

E-Print Network [OSTI]

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

Davies, Jonathan

360

Halbach array DC motor/generator  

DOE Patents [OSTI]

A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

Merritt, Bernard T. (Livermore, CA); Dreifuerst, Gary R. (Livermore, CA); Post, Richard F. (Walnut Creek, CA)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Halbach array DC motor/generator  

DOE Patents [OSTI]

A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An ``inside-out`` design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then ``switched`` or ``commutated`` to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives. 17 figs.

Merritt, B.T.; Dreifuerst, G.R.; Post, R.F.

1998-01-06T23:59:59.000Z

362

Reversible Ratchet Effects for Vortices in Conformal Pinning Arrays  

E-Print Network [OSTI]

A conformal transformation of a uniform triangular pinning array produces a structure called a conformal crystal which preserves the six-fold ordering of the original lattice but contains a gradient in the pinning density. Here we use numerical simulations to show that vortices in type-II superconductors driven with an ac drive over gradient pinning arrays produce the most pronounced ratchet effect over a wide range of parameters for a conformal array, while square gradient or random gradient arrays with equivalent pinning densities give reduced ratchet effects. In the conformal array, the larger spacing of the pinning sites in the direction transverse to the ac drive permits easy funneling of interstitial vortices for one driving direction, producing the enhanced ratchet effect. In the square array, the transverse spacing between pinning sites is uniform, giving no asymmetry in the funneling of the vortices as the driving direction switches, while in the random array, there are numerous easy-flow channels present for either direction of drive. We find multiple ratchet reversals in the conformal arrays as a function of vortex density and ac amplitude, and correlate the features with a reversal in the vortex ordering, which is greater for motion in the ratchet direction. The enhanced conformal pinning ratchet effect can also be realized for colloidal particles moving over a conformal array, indicating the general usefulness of conformal structures for controlling the motion of particles.

C. Reichhardt; D. Ray; C. J. Olson Reichhardt

2015-04-01T23:59:59.000Z

363

array camera irac: Topics by E-print Network  

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

photometric accuracy and stability. Residual images have been minimized. The Raytheon 256 x 256 InSb arrays incorporate a specially developed (for SIRTF) multiplexer and...

364

array camera dark: Topics by E-print Network  

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

photometric accuracy and stability. Residual images have been minimized. The Raytheon 256 x 256 InSb arrays incorporate a specially developed (for SIRTF) multiplexer and...

365

array signal processing: Topics by E-print Network  

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

Array Signal Processing Using Sequential Monte Carlo Methods William Ng, James P. Reilly model in the time-domain, and incorporates the Markov chain Monte Carlo methods 11,...

366

advanced tracking arrays: Topics by E-print Network  

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

number of sources, and to a scenario where the targets cross. Our results Reilly, James P. 82 Compressed Sensing Application For Sparse Array Radar CiteSeer Summary:...

367

Silicon microneedles array with biodegradable tips for transdermal drug delivery  

E-Print Network [OSTI]

This paper presents the fabrication process, characterization results and basic functionality of silicon microneedles array with biodegradable tips. In order to avoid the main problems related to silicon microneedles : broking of the top part of the needles inside the skin, a simple solution can be fabrication of microneedles array with biodegradable tips. The silicon microneedles array was fabricated by using reactive ion etching while the biodegradable tips were performed using and anodization process that generates selectively porous silicon only on the top part of the skin. The paper presents also the results of in vitro release of calcein using microneedles array with biodegradable tips

Chen, B; Tay, Francis; Wong, Y T; Iliescu, C

2008-01-01T23:59:59.000Z

368

High-Temperature Thermal Array for Next Generation Solar Thermal...  

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

Thermal Array for Next Generation Solar Thermal Power Production Award Number: DE-EE00025828 Report Date: March 15, 2013 PI: Stephen Obrey * Technical approach is focused on...

369

array detector systems: Topics by E-print Network  

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

System for a Neutron Detector Array Physics Websites Summary: a stable light emitting diode (LED) light source and a fiber optic network distributing the light to the...

370

Geothermal: Sponsored by OSTI -- Microhole arrays for improved...  

Office of Scientific and Technical Information (OSTI)

Microhole arrays for improved heat mining from enhanced geothermal systems Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About...

371

array comparative genome: Topics by E-print Network  

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

(CGH) with DNA microarrays has detection and identification, and functional genomics studies among related organisms. Array CGH has also 2 De novo identification of...

372

array comparative genomic: Topics by E-print Network  

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

(CGH) with DNA microarrays has detection and identification, and functional genomics studies among related organisms. Array CGH has also 2 De novo identification of...

373

Quantum manipulation and simulation using Josephson junction arrays  

E-Print Network [OSTI]

We discuss the prospect of using quantum properties of large scale Josephson junction arrays for quantum manipulation and simulation. We study the collective vibrational quantum modes of a Josephson junction array and show that they provide a natural and practical method for realizing a high quality cavity for superconducting qubit based QED. We further demonstrate that by using Josephson junction arrays we can simulate a family of problems concerning spinless electron-phonon and electron-electron interactions. These protocols require no or few controls over the Josephson junction array and are thus relatively easy to realize given currently available technology.

Xingxiang Zhou; Ari Mizel

2006-05-01T23:59:59.000Z

374

Optimized Superconducting Quadrupole Arrays for Multiple Beam Transport  

SciTech Connect (OSTI)

This research project advanced the development of reliable, cost-effective arrays of superconducting quadrupole magnets for use in multi-beam inertial fusion accelerators. The field in each array cell must be identical and meet stringent requirements for field quality and strength. An optimized compact array design using flat double-layer pancake coils was developed. Analytical studies of edge termination methods showed that it is feasible to meet the requirements for field uniformity in all cells and elimination of stray external field in several ways: active methods that involve placement of field compensating coils on the periphery of the array or a passive method that involves use of iron shielding.

Meinke, Rainer, B.; Goodzeit, Carl, L.; Ball, Millicent, J.

2005-09-20T23:59:59.000Z

375

Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology...  

Open Energy Info (EERE)

Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Efficiently Exploit Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July...

376

Capacitive micromachined ultrasonic transducer arrays as tunable acoustic metamaterials  

SciTech Connect (OSTI)

Capacitive Micromachined Ultrasonic Transducers (CMUTs) operating in immersion support dispersive evanescent waves due to the subwavelength periodic structure of electrostatically actuated membranes in the array. Evanescent wave characteristics also depend on the membrane resonance which is modified by the externally applied bias voltage, offering a mechanism to tune the CMUT array as an acoustic metamaterial. The dispersion and tunability characteristics are examined using a computationally efficient, mutual radiation impedance based approach to model a finite-size array and realistic parameters of variation. The simulations are verified, and tunability is demonstrated by experiments on a linear CMUT array operating in 2-12?MHz range.

Lani, Shane W., E-mail: shane.w.lani@gmail.com, E-mail: karim.sabra@me.gatech.edu, E-mail: levent.degertekin@me.gatech.edu; Sabra, Karim G. [George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801Ferst Drive, Georgia 30332-0405 (United States); Wasequr Rashid, M.; Hasler, Jennifer [School of Electrical and Computer Engineering, Georgia Institute of Technology, Van Leer Electrical Engineering Building, 777 Atlantic Drive NW, Atlanta, Georgia 30332-0250 (United States); Levent Degertekin, F. [George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801Ferst Drive, Georgia 30332-0405 (United States); School of Electrical and Computer Engineering, Georgia Institute of Technology, Van Leer Electrical Engineering Building, 777 Atlantic Drive NW, Atlanta, Georgia 30332-0250 (United States)

2014-02-03T23:59:59.000Z

377

array processing techniques: Topics by E-print Network  

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

telescope arrays MIT - DSpace Summary: Measurement and analysis of redshifted 21cm hydrogen emissions is a developing technique for studying the early universe. The primary time...

378

antenna phased arrays: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

379

advanced array techniques: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

380

array pulse shapers: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

array implosion obtained: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

382

arrays technology dart: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

383

array technology dart: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

384

array technology final: Topics by E-print Network  

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

phased arrays is inspection speed: linear travel speeds of up to 100 mmsec are possible. Sizing is typically performed using diffraction approaches (TOFD and back diffraction),...

385

Ultrasonic Phased Array Sound Field Mapping Through Large-Bore Coarse Grained Cast Austenitic Stainless Steel (CASS) Piping Materials  

SciTech Connect (OSTI)

A sound field beam mapping exercise was conducted to further understand the effects of coarse grained microstructures found in CASS materials on phased array ultrasonic wave propagation. Laboratory measurements were made on three CASS specimens with different microstructures; the specimens were polished and etched to reveal measurable grain sizes, shapes and orientations. Three longitudinal, phased array probes were fixed on a specimen's outside diameter with the sound field directed toward one end (face) of the pipe segment over a fixed range of angles. A point receiver was raster scanned over the surface of the specimen face generating a sound field image. A slice of CASS material was then removed from the specimen end and the beam mapping exercise repeated. The sound fields acquired were analyzed for spot size, coherency, and beam redirection. Analyses were conducted between the resulting sound fields and the microstructural characteristics of each specimen.

Cinson, Anthony D.; Crawford, Susan L.; Prowant, Matthew S.; Diaz, Aaron A.; Hathaway, John E.; Anderson, Michael T.

2012-04-16T23:59:59.000Z

386

X-Ray Emission from a Radio Hotspot in 3C 390.3: Evidence for the Deflection of a Radio Jet by a Neighboring Galaxy  

E-Print Network [OSTI]

By summing a large number of ROSAT High Resolution Imager (HRI) observations of the variable radio galaxy 3C 390.3, we demonstrate that the X-ray emission associated with the northern radio lobe (reported by Prieto 1997) can be identified with hotspot B. None of the other hotspots have been detected. We present evidence that the anomalous X-ray emission is the consequence of a strong shock produced where the northern radio jet impinges onto an external galaxy.

D. E. Harris; K. M. Leighly; J. P. Leahy

1998-04-20T23:59:59.000Z

387

16-QAM Quantum Receiver with Hybrid Structure Outperforming the Standard Quantum Limit  

E-Print Network [OSTI]

We present a quantum receiver for 16-QAM signals discrimination with hybrid structure containing a homodyne receiver and a displacement receiver, which can outperform the SQL, and the performance can be improved by an optimized displacement.

Yuan Zuo; Ke Li; Bing Zhu

2014-12-15T23:59:59.000Z

388

A Phased Array Approach to Rock Blasting  

SciTech Connect (OSTI)

A series of laboratory-scale simultaneous two-hole shots was performed in a rock simulant (mortar) to record the shock wave interference patterns produced in the material. The purpose of the project as a whole was to evaluate the usefulness of phased array techniques of blast design, using new high-precision delay technology. Despite high-speed photography, however, we were unable to detect the passage of the shock waves through the samples to determine how well they matched the expected interaction geometry. The follow-up mine-scale tests were therefore not conducted. Nevertheless, pattern analysis of the vectors that would be formed by positive interference of the shockwaves from multiple charges in an ideal continuous, homogeneous, isotropic medium indicate the potential for powerful control of blast design, given precise characterization of the target rock mass.

Leslie Gertsch; Jason Baird

2006-07-01T23:59:59.000Z

389

Quantum Computing with Atomic Josephson Junction Arrays  

E-Print Network [OSTI]

We present a quantum computing scheme with atomic Josephson junction arrays. The system consists of a small number of atoms with three internal states and trapped in a far-off resonant optical lattice. Raman lasers provide the "Josephson" tunneling, and the collision interaction between atoms represent the "capacitive" couplings between the modes. The qubit states are collective states of the atoms with opposite persistent currents. This system is closely analogous to the superconducting flux qubit. Single qubit quantum logic gates are performed by modulating the Raman couplings, while two-qubit gates result from a tunnel coupling between neighboring wells. Readout is achieved by tuning the Raman coupling adiabatically between the Josephson regime to the Rabi regime, followed by a detection of atoms in internal electronic states. Decoherence mechanisms are studied in detail promising a high ratio between the decoherence time and the gate operation time.

Lin Tian; P. Zoller

2003-06-12T23:59:59.000Z

390

Gauge Theories of Josephson Junction Arrays  

E-Print Network [OSTI]

We show that the zero-temperature physics of planar Josephson junction arrays in the self-dual approximation is governed by an Abelian gauge theory with periodic mixed Chern-Simons term describing the charge-vortex coupling. The periodicity requires the existence of (Euclidean) topological excitations which determine the quantum phase structure of the model. The electric-magnetic duality leads to a quantum phase transition between a superconductor and a superinsulator at the self-dual point. We also discuss in this framework the recently proposed quantum Hall phases for charges and vortices in presence of external offset charges and magnetic fluxes: we show how the periodicity of the charge-vortex coupling can lead to transitions to anyon superconductivity phases. We finally generalize our results to three dimensions, where the relevant gauge theory is the so-called BF system, with an antisymmetric Kalb-Ramond gauge field.

M. C. Diamantini; P. Sodano; C. A. Trugenberger

1995-11-23T23:59:59.000Z

391

Solar cells incorporating light harvesting arrays  

DOE Patents [OSTI]

A solar cell incorporates a light harvesting array that comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: ##EQU1## wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2 ; and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

Lindsey, Jonathan S.; Meyer, Gerald J.

2003-07-22T23:59:59.000Z

392

Mirror Development for the Cherenkov Telescope Array  

E-Print Network [OSTI]

The Cherenkov Telescope Array (CTA) is a planned observatory for very-high energy gamma-ray astronomy. It will consist of several tens of telescopes of different sizes, with a total mirror area of up to 10,000 square meters. Most mirrors of current installations are either polished glass mirrors or diamond-turned aluminium mirrors, both labour intensive technologies. For CTA, several new technologies for a fast and cost-efficient production of light-weight and reliable mirror substrates have been developed and industrial pre-production has started for most of them. In addition, new or improved aluminium-based and dielectric surface coatings have been developed to increase the reflectance over the lifetime of the mirrors compared to those of current Cherenkov telescope instruments.

Frster, A; Baba, H; Bhr, J; Bonardi, A; Bonnoli, G; Brun, P; Canestrari, R; Chadwick, P; Chikawa, M; Carton, P -H; De Souza, V; Dipold, J; Doro, M; Durand, D; Dyrda, M; Giro, E; Glicenstein, J -F; Hanabata, Y; Hayashida, M; Hrabovski, M; Jeanney, C; Kagaya, M; Katagiri, H; Lessio, L; MANDAT, D; Mariotti, M; Medina, C; Micha?owski, J; Micolon, P; Nakajima, D; Niemiec, J; Nozato, A; Palatka, M; Pareschi, G; Pech, M; Peyaud, B; Phlhofer, G; Rataj, M; Rodeghiero, G; Rojas, G; Rousselle, J; Sakonaka, R; Schovanek, P; Seweryn, K; Schultz, C; Shu, S; Stinzing, F; Stodulski, M; Teshima, M; Travniczek, P; Van Eldik, C; Vassiliev, V; Wi?niewski, ?; Wrnlein, A; Yoshida, T

2013-01-01T23:59:59.000Z

393

Solar cells incorporating light harvesting arrays  

DOE Patents [OSTI]

A solar cell incorporates a light harvesting array that comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: X.sup.1.paren open-st.X.sup.m+1).sub.m (I) wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2 ; and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

Lindsey, Jonathan S. (Raleigh, NC); Meyer, Gerald J. (Baltimore, MD)

2002-01-01T23:59:59.000Z

394

Quantum computing with atomic Josephson junction arrays  

SciTech Connect (OSTI)

We present a quantum computing scheme with atomic Josephson junction arrays. The system consists of a small number of atoms with three internal states and trapped in a far-off-resonant optical lattice. Raman lasers provide the 'Josephson' tunneling, and the collision interaction between atoms represent the 'capacitive' couplings between the modes. The qubit states are collective states of the atoms with opposite persistent currents. This system is closely analogous to the superconducting flux qubit. Single-qubit quantum logic gates are performed by modulating the Raman couplings, while two-qubit gates result from a tunnel coupling between neighboring wells. Readout is achieved by tuning the Raman coupling adiabatically between the Josephson regime to the Rabi regime, followed by a detection of atoms in internal electronic states. Decoherence mechanisms are studied in detail promising a high ratio between the decoherence time and the gate operation time.

Tian Lin; Zoller, P. [Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck (Austria)

2003-10-01T23:59:59.000Z

395

Thermal microphotonic sensor and sensor array  

DOE Patents [OSTI]

A thermal microphotonic sensor is disclosed for detecting infrared radiation using heat generated by the infrared radiation to shift the resonant frequency of an optical resonator (e.g. a ring resonator) to which the heat is coupled. The shift in the resonant frequency can be determined from light in an optical waveguide which is evanescently coupled to the optical resonator. An infrared absorber can be provided on the optical waveguide either as a coating or as a plate to aid in absorption of the infrared radiation. In some cases, a vertical resonant cavity can be formed about the infrared absorber to further increase the absorption of the infrared radiation. The sensor can be formed as a single device, or as an array for imaging the infrared radiation.

Watts, Michael R. (Albuquerque, NM); Shaw, Michael J. (Tijeras, NM); Nielson, Gregory N. (Albuquerque, NM); Lentine, Anthony L. (Albuquerque, NM)

2010-02-23T23:59:59.000Z

396

Analog circuit for controlling acoustic transducer arrays  

DOE Patents [OSTI]

A simplified ananlog circuit is presented for controlling electromechanical transducer pairs in an acoustic telemetry system. The analog circuit of this invention comprises a single electrical resistor which replaces all of the digital components in a known digital circuit. In accordance with this invention, a first transducer in a transducer pair of array is driven in series with the resistor. The voltage drop across this resistor is then amplified and used to drive the second transducer. The voltage drop across the resistor is proportional and in phase with the current to the transducer. This current is approximately 90 degrees out of phase with the driving voltage to the transducer. This phase shift replaces the digital delay required by the digital control circuit of the prior art.

Drumheller, Douglas S. (Cedar Crest, NM)

1991-01-01T23:59:59.000Z

397

Microfluidic System for Solution Array Based Bioassays  

SciTech Connect (OSTI)

The objective of this project is to demonstrate new enabling technology for multiplex biodetection systems that are flexible, miniaturizable, highly automated, low cost, and high performance. It builds on prior successes at LLNL with particle-based solution arrays, such as those used in the Autonomous Pathogen Detection System (APDS) successfully field deployed to multiple locations nationwide. We report the development of a multiplex solution array immunoassay based upon engineered metallic nanorod particles. Nanobarcodes{reg_sign} particles are fabricated by sequential electrodeposition of dissimilar metals within porous alumina templates, yielding optically encoded striping patterns that can be read using standard laboratory microscope optics and PC-based image processing software. The addition of self-assembled monolayer (SAM) coatings and target-specific antibodies allows each encoded class of nanorod particles to be directed against a different antigen target. A prototype assay panel directed against bacterial, viral, and soluble protein targets demonstrates simultaneous detection at sensitivities comparable to state of the art immunoassays, with minimal cross-reactivity. Studies have been performed to characterize the colloidal properties (zeta potential) of the suspended nanorod particles as a function of pH, the ionic strength of the suspending solution, and surface functionalization state. Additional studies have produced means for the non-contact manipulation of the particles, including the insertion of magnetic nickel stripes within the encoding pattern, and control via externally applied electromagnetic fields. Using the results of these studies, the novel Nanobarcodes{reg_sign} based assay was implemented in a prototype automated system with the sample processing functions and optical readout performed on a microfluidic card. The unique physical properties of the nanorod particles enable the development of integrated microfluidic systems for biodefense, protein expression studies, and other applications.

Dougherty, G M; Tok, J B; Pannu, S S; Rose, K A

2006-02-10T23:59:59.000Z

398

Providing protection: Agencies receive funding to repair, upgrade dams  

E-Print Network [OSTI]

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... totaling about $11 million. Of the 343 dams currently classified as high hazard, Scattered across Texas are almost 2,000 nondescript, earthen dams built on private land to protect property, roads, and bridges from flood damages. Some of these dams...

Wythe, Kathy

2009-01-01T23:59:59.000Z

399

Receiver for solar energy collector having improved aperture aspect  

DOE Patents [OSTI]

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.

McIntire, William R. (Downers Grove, IL)

1984-01-01T23:59:59.000Z

400

Digital-data receiver synchronization method and apparatus  

DOE Patents [OSTI]

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.

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

2009-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Digital-data receiver synchronization method and apparatus  

DOE Patents [OSTI]

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.

Smith, Stephen F.; Turner, Gary W.

2005-12-06T23:59:59.000Z

402

Current isolating epitaxial buffer layers for high voltage photodiode array  

DOE Patents [OSTI]

An array of photodiodes in series on a common semi-insulating substrate has a non-conductive buffer layer between the photodiodes and the semi-insulating substrate. The buffer layer reduces current injection leakage between the photodiodes of the array and allows optical energy to be converted to high voltage electrical energy.

Morse, Jeffrey D. (Martinez, CA); Cooper, Gregory A. (Pleasant Hill, CA)

2002-01-01T23:59:59.000Z

403

Fast Characterization of Radiation Patterns of Conformal Array Antennas  

E-Print Network [OSTI]

-arrays. At the finest level of decomposition, the radiation patterns of single element arrays are computed or measured are thus of special interest for imaging radar systems mounted on the fuselage of an Unmanned Aerial Vehicle (UAV) or of an aircraft [1]. This new generation of radar imaging systems is based

Paris-Sud XI, Université de

404

Rapid Screening of Complex Chemical Samples via Capillary Array Analysis  

SciTech Connect (OSTI)

This report is a summary of the results of a two-year Laboratory-Directed Research and Development (LDRD) project that developed instrumentation and methods for capillary array analysis. During the course of this project, a new capillary array electrochromatography instrument was developed to perform eight simultaneous separations and provide complementary chromatographic information from each column on a single sample.

D. S. Anex; D. W. Neyer

1998-11-01T23:59:59.000Z

405

Tunneling Qubit Operation on a Protected Josephson Junction Array  

E-Print Network [OSTI]

We discuss a protected quantum computation process based on a hexagon Josephson junction array. Qubits are encoded in the punctured array, which is topologically protected. The degeneracy is related to the number of holes. The topological degeneracy is lightly shifted by tuning the flux through specific hexagons. We also show how to perform single qubit operation and basic quantum gate operations in this system.

Zhi Yin; Sheng-Wen Li; Yi-Xin Chen

2010-01-29T23:59:59.000Z

406

A Low Noise Readout Circuit for Integrated Electrochemical Biosensor Arrays  

E-Print Network [OSTI]

A Low Noise Readout Circuit for Integrated Electrochemical Biosensor Arrays Jichun Zhang, Nicholas 48823, USA {zhangjic, tromblyn, mason}@egr.msu.edu Abstract This paper presents a low noise electrochemical interface circuit that is tuned to the needs of protein-based biosensor arrays and compatible

Mason, Andrew

407

MICROFLUIDIC DEVICE WITH INTEGRATED ANTIBODY ARRAYS FOR CELL SIGNALLING  

E-Print Network [OSTI]

MICROFLUIDIC DEVICE WITH INTEGRATED ANTIBODY ARRAYS FOR CELL SIGNALLING ANALYSIS J. El-Ali1 , S we present the integration of protein arrays with a microfluidic device for analysis of cell a microfluidic segmented flow device that could achieve rapid stimulus and lysis of cells [1][2]. The device had

408

RESEARCH ARTICLE Wake development in staggered short cylinder arrays  

E-Print Network [OSTI]

edge of gas turbine airfoils. This study investigates the near wake flow as it develops through arrays Dh Duct hydraulic diameter Euu One-dimensional energy spectrum of streamwise velocity f Frequency H. Heat exchangers used in cooling gas turbine airfoils feature pinfin arrays constrained by two solid

Thole, Karen A.

409

Wideband Heterodyne QWIP Receiver Development for Thermonuclear Fusion Measurements  

SciTech Connect (OSTI)

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.

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

1998-11-01T23:59:59.000Z

410

Power efficiency for very high temperature solar thermal cavity receivers  

DOE Patents [OSTI]

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.

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

1984-01-01T23:59:59.000Z

411

Nonlinear optical localization in embedded chalcogenide waveguide arrays  

SciTech Connect (OSTI)

We report the nonlinear optical localization in an embedded waveguide array fabricated in chalcogenide glass. The array, which consists of seven waveguides with circularly symmetric cross sections, is realized by ultrafast laser writing. Light propagation in the chalcogenide waveguide array is studied with near infrared laser pulses centered at 1040 nm. The peak intensity required for nonlinear localization for the 1-cm long waveguide array was 35.1 GW/cm{sup 2}, using 10-nJ pulses with 300-fs pulse width, which is 70 times lower than that reported in fused silica waveguide arrays and with over 7 times shorter interaction distance. Results reported in this paper demonstrated that ultrafast laser writing is a viable tool to produce 3D all-optical switching waveguide circuits in chalcogenide glass.

Li, Mingshan; Huang, Sheng; Wang, Qingqing; Chen, Kevin P., E-mail: kchen@engr.pitt.edu [Department of Electrical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261 (United States); Petek, Hrvoje [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)

2014-05-15T23:59:59.000Z

412

PNP - a new class of coded aperture arrays  

SciTech Connect (OSTI)

The authors report on a new class of coded aperture arrays which has all the desirable imaging characteristics of the Uniformly Redundant Array (URA), yet is constructible in dimensions which are forbidden to that design. In addition, the new arrays (called PNP arrays, for Pseudo-Noise Product) are of self-supporting geometry, simplifying fabrication and making them ideal candidates for situations where active collimators are employed, as for example in high-energy ..gamma..-ray imaging. A unique and important feature of all PNP arrays is the ability to produce reconstructed images whose noise is uniform regardless of the original source structure. A comparison of the predicted performance of the PNP, URA, GEOMETRIC, and PINHOLE designs is presented. Coded aperture imaging, which utilizes position-sensitive detectors, was first proposed as a means for detecting x-ray and gamma sources.

Gottesman, S.R.; Schneid, E.J.

1986-02-01T23:59:59.000Z

413

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...

414

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

E-Print Network [OSTI]

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 ...

Lenert, Andrej

2010-01-01T23:59:59.000Z

415

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...

416

Photovoltaic module kit including connector assembly for non-penetrating array installation  

DOE Patents [OSTI]

A PV module kit for non-penetrating rooftop installation, including a plurality of PV modules and a plurality of connectors. Each of the PV modules includes a PV laminate and a frame forming a mounting region assembled thereto. The connectors include a male connector having a male fastener extending from a head, and a female connector having a female fastener assembled within a head. The heads are entirely formed of plastic. The kit provides a mounted array state including a junction at which the mounting region of at least two of the PV modules are aligned and interconnected by engagement of the male connector with the female connector. The so-formed junction is substantially electrically insulated. The plurality of connectors can further include a spacer connector including a head forming a bore sized to slidably receive the male fastener, with all of the connector heads being identical.

Botkin, Jonathan (El Cerrito, CA); Graves, Simon (Berkeley, CA); Danning, Matt (Oakland, CA); Culligan, Matthew (Berkeley, CA)

2011-11-22T23:59:59.000Z

417

Photovoltaic module kit including connector assembly for non-penetrating array installation  

DOE Patents [OSTI]

A PV module kit for non-penetrating rooftop installation, including a plurality of PV modules and a plurality of connectors. Each of the PV modules includes a PV laminate and a frame forming a mounting region assembled thereto. The connectors include a male connector having a male fastener extending from a head, and a female connector having a female fastener assembled within a head. The heads are entirely formed of plastic. The kit provides a mounted array state including a junction at which the mounting region of at least two of the PV modules are aligned and interconnected by engagement of the male connector with the female connector. The so-formed junction is substantially electrically insulated. The plurality of connectors can further include a spacer connector including a head forming a bore sized to slidably receive the male fastener, with all of the connector heads being identical.

Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

2012-10-23T23:59:59.000Z

418

Photovoltaic module kit including connector assembly for non-penetrating array installation  

DOE Patents [OSTI]

A PV module kit for non-penetrating rooftop installation, including a plurality of PV modules and a plurality of connectors. Each of the PV modules includes a PV laminate and a frame forming a mounting region assembled thereto. The connectors include a male connector having a male fastener extending from a head, and a female connector having a female fastener assempbled within a head. The heads are entirely formed of plastic. The kit provides a mounted array state including a junction at which the mounting regions of at least two of the PV modules are aligned and interconnected by engagement of the male connector with the female connector. The so-formed junction is substantially electrically insulated. The plurality of connectors can further include a spacer connector including a head forming a bore sized slidably receive the male fastener, with all of the connector heads being identical.

Botkin, Jonathan; Graves, Simon; Danning, Matt; Culligan, Matthew

2013-12-31T23:59:59.000Z

419

The Long Wavelength Array (LWA): A Large HF/VHF Array for Solar Physics, Ionospheric Science, and Solar Radar  

E-Print Network [OSTI]

The Long Wavelength Array (LWA): A Large HF/VHF Array for Solar Physics, Ionospheric Science, and Solar Radar Namir E. Kassim Naval Research Laboratory, Washington, DC 20375 Stephen M. White AFRL will be a powerful tool for solar physics and space weather investigations, through its ability to characterize

Ellingson, Steven W.

420

A NOVEL PROCESS TO USE SALT CAVERNS TO RECEIVE SHIP BORNE LNG  

SciTech Connect (OSTI)

This cooperative research project validates use of man made salt caverns to receive and store the cargoes of LNG ships in lieu of large liquid LNG tanks. Salt caverns will not tolerate direct injection of LNG because it is a cryogenic liquid, too cold for contact with salt. This research confirmed the technical processes and the economic benefits of pressuring the LNG up to dense phase, warming it to salt compatible temperatures and then directly injecting the dense phase gas into salt caverns for storage. The use of salt caverns to store natural gas sourced from LNG imports, particularly when located offshore, provides a highly secure, large scale and lower cost import facility as an alternative to tank based LNG import terminals. This design can unload a ship in the same time as unloading at a tank based terminal. The Strategic Petroleum Reserve uses man made salt caverns to securely store large quantities of crude oil. Similarly, this project describes a novel application of salt cavern gas storage technologies used for the first time in conjunction with LNG receiving. The energy industry uses man made salt caverns to store an array of gases and liquids but has never used man made salt caverns directly in the importation of LNG. This project has adapted and expanded the field of salt cavern storage technology and combined it with novel equipment and processes to accommodate LNG importation. The salt cavern based LNG receiving terminal described in the project can be located onshore or offshore, but the focus of the design and cost estimates has been on an offshore location, away from congested channels and ports. The salt cavern based terminal can provide large volumes of gas storage, high deliverability from storage, and is simplified in operation compared to tank based LNG terminals. Phase I of this project included mathematical modeling that proved a salt cavern based receiving terminal could be built at lower capital cost, and would have significantly higher delivery capacity, shorter construction time, and be much more secure than a conventional liquid tank based terminal. Operating costs of a salt cavern terminal are lower than tank based terminals because ''boil off'' is eliminated and maintenance costs of caverns are lower than LNG tanks. Phase II included the development of offshore mooring designs, wave tank tests, high pressure LNG pump field tests, heat exchanger field tests, and development of a model offshore LNG facility and cavern design. Engineers designed a model facility, prepared equipment lists, and confirmed capital and operating costs. In addition, vendors quoted fabrication and installation costs, confirming that an offshore salt cavern based LNG terminal would have lower capital and operating costs than a similarly sized offshore tank based terminal. Salt cavern storage is infinitely more secure than surface storage tanks, far less susceptible to accidents or purposeful damage, and much more acceptable to the community. More than thirty industry participants provided cost sharing, technical expertise, and guidance in the conduct and evaluation of the field tests, facility design and operating and cost estimates. Their close participation has accelerated the industry's acceptance of the conclusions of this research. The industry participants also developed and submitted several alternative designs for offshore mooring and for high pressure LNG heat exchangers in addition to those that were field tested in this project. HNG Storage, a developer, owner, and operator of natural gas storage facilities, and a participant in the DOE research has announced they will lead the development of the first offshore salt cavern based LNG import facility. Which will be called the Freedom LNG Terminal. It will be located offshore Louisiana, and is expected to be jointly developed with other members of the research group yet to be named. An offshore port license application is scheduled to be filed by fourth quarter 2005 and the terminal could be operational by 2009. This terminal allows the large volume importa

Michael M. McCall; William M. Bishop; Marcus Krekel; James F. Davis; D. Braxton Scherz

2005-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

E-Print Network 3.0 - array integrated read Sample Search Results  

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

and Information Sciences 8 Computation Visualization Summary: of mxArray to get from MATLAB. Description engGetArray reads the named mxArray from the MATLAB engine... Delete...

422

Electrode Placement and the Fabrication of Sub-100-nm Nanopore Arrays  

E-Print Network [OSTI]

The anodization of aluminum films grown on silicon substrates under controlled conditions is used to fabricate porous alumina arrays. Such porous arrays are used as sensors or lithography masks for fabrication of sub-100-nm nanodot arrays...

Gonzales, Jacob D.

2010-07-14T23:59:59.000Z

423

Arrays of 128x32 InP-based Geiger-mode avalanche photodiodes  

E-Print Network [OSTI]

Arrays of InP-based avalanche photodiodes operating at 1.06-m wavelength in the Geiger mode have been fabricated in the 128x32 format. The arrays have been hermetically packaged with precision-aligned lenslet arrays, ...

Brattain, Michael A.

424

SiC APDs and arrays for UV and solar blind detection  

E-Print Network [OSTI]

We report advancements in APDs and arrays using 4H SiC. Novel structures, array designs and specialized read out integrated circuits have been developed towards the realization of UV and solar-blind detector arrays exhibiting ...

Shaw, Gary A.

425

Nanoscale array structures suitable for surface enhanced raman scattering and methods related thereto  

DOE Patents [OSTI]

Methods for fabricating nanoscale array structures suitable for surface enhanced Raman scattering, structures thus obtained, and methods to characterize the nanoscale array structures suitable for surface enhanced Raman scattering. Nanoscale array structures may comprise nanotrees, nanorecesses and tapered nanopillars.

Bond, Tiziana C.; Miles, Robin; Davidson, James C.; Liu, Gang Logan

2014-07-22T23:59:59.000Z

426

Data:E908a735-13ff-4c76-99f1-f77ff3c9ad00 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Pagec-01b596aa1744b55997c1cc No revision has beenace4-3e58210a501f Noc9-64f337dd0502055ddf45fb-29e8831632bdf77ff3c9ad00 No

427

Data:Efb2e184-0892-4b63-a992-710c3c88d842 | Open Energy Information  

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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 Pagec-01b596aa1744b55997c1ccEeae2669-ec94-4cc4-bbae-0108084310cc Nobeedba3b42c NoEfb2e184-0892-4b63-a992-710c3c88d842 No

428

Data:F3c8beb6-ec5a-4b1c-af42-d7d510258b85 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has been approved for this page. It ise7c5ddfdbf9 Noabed3a4e456eF3c8beb6-ec5a-4b1c-af42-d7d510258b85 No

429

Data:6a361fae-6a93-4a19-89d7-3c0893657b59 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 No revision has been approvedea02758d3 Nob05268d8cd No558bec598f3d No0538ed58f Nod7-3c0893657b59 No

430

Data:6d28d278-1f51-4c08-9f8a-3c74d43736ff | Open Energy Information  

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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 Office695810186 No revision has been approvedea02758d3f49fa2694 No9fb1785f59e2d98199c Nof8a-3c74d43736ff No revision

431

Data:72fcebe8-30b6-481a-a538-ee3c224183d0 | Open Energy Information  

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432

Data:73f20de0-2223-475c-aae1-f8d896fd3c8a | Open Energy Information  

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433

Data:740d0a35-09e7-4d3c-b662-36909127da62 | Open Energy Information  

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434

Data:769759f3-1be6-4bf4-8390-f3c1d17c852d | Open Energy Information  

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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 Office695810186 No revision has6a0216321b No revision8390-f3c1d17c852d No revision has been approved for this page. It

435

Data:1bc6f9fc-6d87-4242-9fd3-c5820c6cbc43 | Open Energy Information  

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436

Data:23bc19a5-a508-4ca0-b7da-2d3c1db7db71 | Open Energy Information  

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437

XMM-NEWTON Detection of X-ray Emission from the Compact Steep Spectrum Radio Galaxy 3C303.1  

E-Print Network [OSTI]

Using XMM we detect faint unresolved X-ray emission from the Compact Steep Spectrum radio galaxy 3C303.1. We detect a thermal component at kT = 0.8 keV which seems likely to be produced in the ISM of the host galaxy. There is evidence for a second component in the spectrum whose nature is currently ambiguous. Plausible hypotheses for the second component include (1) hot gas shocked by the expansion of the radio source, and (2) Synchrotron self-Compton emission from the southern radio lobe if the magnetic field is below the equipartition value by a factor of about 3.5.

C. O'Dea; B. Mu; D. Worrall; J. Kastner; S. Baum; W. De Vries

2006-08-15T23:59:59.000Z

438

Data:B4cce737-1f0e-4599-8fd5-3c761ff15060 | Open Energy Information  

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439

Data:B7b09e24-f63a-4031-90e6-d18e3c5776d1 | Open Energy Information  

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440

Data:Bcc14b3c-0b9a-4dee-809a-3efbe8911303 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onb5-dcc1fcffd1f2 No revisionBc32c6c2-7336-4ed7-9ed7-6e5811369aef No revisiondf0d3c5b No589477d1e No revision

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Data:55ca673e-8fba-4fc2-b8ec-108c9b3c0571 | Open Energy Information  

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442

Data:55d29730-73db-4f6b-be3c-7b716b192303 | Open Energy Information  

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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 Office of48d9ff47edf3a87dcc95b3da-78f7ef0b79f6 No revisionc8de9b501c3 No revision hasb-be3c-7b716b192303 No revision

443

Data:5caf87fa-718b-4bf0-871e-92f44b5cdc3c | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 No revision has been approved for this page. It is currentlyf44b5cdc3c No revision has been approved

444

Data:5ce3c6d7-3ec9-450c-b26d-d31b483cabcb | Open Energy Information  

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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 Office695810186 No revision has been approved for this page. It is currentlyf44b5cdc3c2-c8ca033bec89

445

Data:6326a31e-00cd-4f2f-86e7-e6a764fc8e3c | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 No revision has been approved fore6e8eee44 No revision has been8efe6555aea3e672ae5f0cc3a764fc8e3c No

446

Data:63dbfa77-3cdd-4c3c-b318-7afffdd75749 | Open Energy Information  

Open Energy Info (EERE)

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447

Data:6436c5eb-84b0-4e62-991e-e3bcd810db3c | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 No revision has been approved fore6e8eee44 No revision39b59bdb28238f1ec295e3bcd810db3c No revision has

448

Data:4495a761-00a7-49b8-81e9-d8f1ef3c0673 | Open Energy Information  

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449

Data:4513176c-0d08-4d0f-8493-fedb3c8d0965 | Open Energy Information  

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450

Data:451ffc40-8115-466b-a4a4-94f8c86e3c96 | Open Energy Information  

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451

Data:4bbda53c-862d-40f0-b0f3-c7fb462dbf90 | Open Energy Information  

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452

Data:4ef8b09d-67e2-4a8d-aa98-788912ecdf3c | Open Energy Information  

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453

Data:1174db4b-28c9-4a6f-afd2-543f3c52f57e | Open Energy Information  

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454

Data:1634d96a-b098-4ac8-ab25-b2db936dda3c | Open Energy Information  

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455

Data:A24fad9b-6892-47d7-8d29-48bb14cff3c4 | Open Energy Information  

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456

Data:A260b3c0-edce-46a2-b389-6b58b801529e | Open Energy Information  

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457

Data:A4ddefe0-db39-48c0-ac98-7941b3451e3c | Open Energy Information  

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458

Data:A5a10664-df47-47e9-91af-6ef3c763dff2 | Open Energy Information  

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459

Data:8bc46321-7daf-4383-a6de-2b39f3c88cd0 | Open Energy Information  

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460

Data:8cc123d2-2dfc-4402-84fe-65804cb3c383 | Open Energy Information  

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Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Data:8ec740ba-c301-41e8-b6a9-ec4b36cc3c02 | Open Energy Information  

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462

Data:91ad7d12-3f66-4137-967a-3c0492ab8f41 | Open Energy Information  

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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 Office695810186 No revisione0a2d50bdf35248292f1 No revision has been040c1bfd8d No revision hasa-3c0492ab8f41 No

463

Data:9520a388-400e-45e9-b645-8e3c83837b69 | Open Energy Information  

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464

Data:9932c115-8fe1-4d6e-926c-64bb3c28fb8a | Open Energy Information  

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465

Data:9b3b525f-0017-4495-ba86-8b3ef3c72c3d | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 Nod2db5b31cb44 No revision has been approved for thisa44928f0654 No revisione806e466-8b3ef3c72c3d No

466

Data:C4744213-4853-40c3-88f2-15aa856e3c89 | Open Energy Information  

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467

Data:C49263f3-c4f6-41a9-a967-7d3265326fac | Open Energy Information  

Open Energy Info (EERE)

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468

Data:C5edea6e-082f-441d-a84e-c3c27119f58d | Open Energy Information  

Open Energy Info (EERE)

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469

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Open Energy Info (EERE)

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Open Energy Info (EERE)

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Open Energy Info (EERE)

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476

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun DengWISP Sign In AboutEarns Top AwardReceives

477

Sandia receives four tech transfer awards | National Nuclear Security  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systems controller systemsis a multiprogramAdministration receives four

478

Sandia researcher Stephanie Hansen receives 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systems controller systemsis a multiprogramAdministration receives

479

Sandia National Laboratories: Sandia Receives Award for Electronics  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolarCybernetics:2PIntroductionPublicStewardship Sandia Receives

480

GAiN: Distributed Array Computation with Python  

SciTech Connect (OSTI)

Scientific computing makes use of very large, multidimensional numerical arrays - typically, gigabytes to terabytes in size - much larger than can fit on even the largest single compute node. Such arrays must be distributed across a "cluster" of nodes. Global Arrays is a cluster-based software system from Battelle Pacific Northwest National Laboratory that enables an efficient, portable, and parallel shared-memory programming interface to manipulate these arrays. Written in and for the C and FORTRAN programming languages, it takes advantage of high-performance cluster interconnections to allow any node in the cluster to access data on any other node very rapidly. The "numpy" module is the de facto standard for numerical calculation in the Python programming language, a language whose use is growing rapidly in the scientific and engineering communities. numpy provides a powerful N-dimensional array class as well as other scientific computing capabilities. However, like the majority of the core Python modules, numpy is inherently serial. Our system, GAiN (Global Arrays in NumPy), is a parallel extension to Python that accesses Global Arrays through numpy. This allows parallel processing and/or larger problem sizes to be harnessed almost transparently within new or existing numpy programs.

Daily, Jeffrey A.

2009-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "3c receiver array" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

E-Print Network 3.0 - adaptive antenna array Sample Search Results  

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

degree of freedom by treating the antenna array... ON MIMO SYSTEMS In the literature, a smart, intelligent, or adaptive antenna refers to an antenna array... MULTIFUNCTIONAL...

482

E-Print Network 3.0 - array processors based Sample Search Results  

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

global array is invoked... Internally, WBRT implements an arrays based on ... Source: Liu, Pangfeng - Department of Computer Science and Information Engineering, National...

483

E-Print Network 3.0 - array x-ray detector Sample Search Results  

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

detector XFEL... array ... Source: Gruner, Sol M. - Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University Collection: Physics 2 Pixel array...

484

E-Print Network 3.0 - array growth kinetics Sample Search Results  

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

large-scale micropatterned arrays of ultralong ZnO nanowires and nanobelts... -optoelectronic devices and nanosensor arrays.5 For the controlled ... Source: Qi, Limin - College of...

485

Thermodynamic Signatures of Half-Quantum Vortices in p+ip Josephson Junction Arrays  

E-Print Network [OSTI]

bind a Majorana Fermion . . 3 Josephson Junction Arrays 3.14 p + ip Josephson Junction Arrays 4.1Bind a Majorana Fermion . . . . . . . . . Josephson Junction

Krahn, Graham Joel

2012-01-01T23:59:59.000Z

486

SciTech Connect: The Nuclear Spectroscopic Telescope Array (NuSTAR...  

Office of Scientific and Technical Information (OSTI)

The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission Citation Details In-Document Search Title: The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission Authors: Harrison,...

487

Project Profile: High-Temperature Thermal Array for Next-Generation...  

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

Thermal Array for Next-Generation Solar Thermal Power Production Project Profile: High-Temperature Thermal Array for Next-Generation Solar Thermal Power Production Los Alamos...

488

E-Print Network 3.0 - array beam controllers Sample Search Results  

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

for: array beam controllers Page: << < 1 2 3 4 5 > >> 1 Limited Diffraction Array Beams Ultrasound Research Laboratory, Department of Physiology and Biophysics, Mayo Clinic...

489

E-Print Network 3.0 - addressable electrode arrays Sample Search...  

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

19 Multisegmented Au-MnO2Carbon Nanotube Hybrid Coaxial Arrays for High-Power Supercapacitor Applications Summary: hybrid coaxial arrays are efficient electrodes for...

490

E-Print Network 3.0 - array performance model Sample Search Results  

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

ON APPLIED SUPERCONDUCTIVITY, VOL. 16, NO. 4, DECEMBER 2006 2005 Arrays of SNS Josephson Junctions Summary: array and to optimize their performance for Josephson voltage...

491

E-Print Network 3.0 - array fabrication method Sample Search...  

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

analyte concentrations. We fabricated a non-close- packed sensing array... -containing hydro- gel-film-embedded 2-D array was ... Source: Asher, Sanford A. - Department of...

492

E-Print Network 3.0 - array bido kansoku Sample Search Results  

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

Overflowing array... and gdb Architecture LaboratoryResearch Parallel PARL wjones@hades gcc -g -Wall -lefence overFlowMallocedArray... fault. Switching to Thread 1024...

493

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

E-Print Network [OSTI]

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

Berns, Hans-Gerd

494

A final report on the Phase 1 testing of a molten-salt cavity receiver  

SciTech Connect (OSTI)

This report describes the design, construction, and testing of a solar central receiver using molten nitrate salt as a heat exchange fluid. Design studies for large commercial plants (30--100 MWe) have shown molten salt to be an excellent fluid for solar thermal plants as it allows for efficient thermal storage. Plant design studies concluded that an advanced receiver test was required to address uncertainties not covered in prior receiver tests. This recommendation led to the current test program managed by Sandia National Laboratories for the US Department of Energy. The 4.5 MWt receiver is installed at Sandia National Laboratories' Central Receiver Test Facility in Albuquerque, New Mexico. The receiver incorporates features of large commercial receiver designs. This report describes the receiver's configuration, heat absorption surface (design and sizing), the structure and supporting systems, and the methods for control. The receiver was solar tested during a six-month period at the Central Receiver Test Facility in Albuquerque, NM. The purpose of the testing was to characterize the operational capabilities of the receiver under a number of solar operating and stand-by conditions. This testing consisted of initial check-out of the systems, followed by steady-state performance, transient receiver operation, receiver operation in clouds, receiver thermal loss testing, receiver start-up operation, and overnight thermal conditioning tests. This report describes the design, fabrication, and results of testing of the receiver.

Chavez, J M [ed.; Sandia National Labs., Albuquerque, NM (United States); Smith, D C [Babcock and Wilcox Co., Barberton, OH (United States). Nuclear Equipment Div.

1992-05-01T23:59:59.000Z

495

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

E-Print Network [OSTI]

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

Benoît, Escrig

496

Nanopillars array for surface enhanced Raman scattering  

SciTech Connect (OSTI)

The authors present a new class of surface-enhanced Raman scattering (SERS) substrates based on lithographically-defined two-dimensional rectangular array of nanopillars. Two types of nanopillars within this class are discussed: vertical pillars and tapered pillars. For the vertical pillars, the gap between each pair of nanopillars is small enough (< 50 nm) such that highly confined plasmonic cavity resonances are supported between the pillars when light is incident upon them, and the anti-nodes of these resonances act as three-dimensional hotspots for SERS. For the tapered pillars, SERS enhancement arises from the nanofocusing effect due to the sharp tip on top. SERS experiments were carried out on these substrates using various concentrations of 1,2 bis-(4-pyridyl)-ethylene (BPE), benzenethiol (BT) monolayer and toluene vapor. The results show that SERS enhancement factor of over 0.5 x 10{sup 9} can be achieved, and BPE can be detected down to femto-molar concentration level. The results also show promising potential for the use of these substrates in environmental monitoring of gases and vapors such as volatile organic compounds.

S.P. Chang, A; Bora, M; Nguyen, H T; Behymer, E M; Larson, C C; Britten, J A; Carter, J C; Bond, T C

2011-04-14T23:59:59.000Z

497

Multifunction minimization for programmable logic arrays  

SciTech Connect (OSTI)

The problem of minimizing two-level AND/OR Boolean algebraic functions of n inputs and m outputs for implementation on programmable logic arrays (PLA) is examined. The theory of multiple-output functions as well as the historically alternative approaches to reckoning the cost of an equation implementation are reviewed. The PLA is shown to be a realization of the least product gate equation cost criterion. The multi-function minimization is dealt with in the context of a directed tree search algorithm developed in previous research. The PLA oriented minimization is shown to alter the nature of each of the basic tenets of multiple-output minimization used in earlier work. The concept of a non-prime but selectable implicant is introduced. A new cost criterion, the quantum cost, is discussed, and an approximation algorithm utilizing this criterion is developed. A timing analysis of a cyclic resolution algorithm for PLA based functions is presented. Lastly, the question of efficiency in automated minimization algorithms is examined. The application of the PLA cost criterion is shown to exhibit intrinsic increases in computational efficiency. A minterm classification algorithm is suggested and a PLA minimization algorithm is implemented in the FORTRAN language.

Campbell, J.A.

1984-01-01T23:59:59.000Z

498

Full light absorption in single arrays of spherical nanoparticles  

E-Print Network [OSTI]

In this paper we show that arrays of core-shell nanoparticles function as effective thin absorbers of light. In contrast to known metamaterial absorbers, the introduced absorbers are formed by single planar arrays of spherical inclusions and enable full absorption of light incident on either or both sides of the array. We demonstrate possibilities for realizing different kinds of symmetric absorbers, including resonant, ultra-broadband, angularly selective, and all-angle absorbers. The physical principle behind these designs is explained considering balanced electric and magnetic responses of unit cells. Photovoltaic devices and thermal emitters are the two most important potential applications of the proposed designs.

Ra'di, Y; Kosulnikov, S U; Omelyanovich, M M; Morits, D; Osipov, A V; Simovski, C R; Tretyakov, S A

2015-01-01T23:59:59.000Z

499

Coded aperture imaging with self-supporting uniformly redundant arrays  

DOE Patents [OSTI]

A self-supporting uniformly redundant array pattern for coded aperture imaging. The present invention utilizes holes which are an integer times smaller in each direction than holes in conventional URA patterns. A balance correlation function is generated where holes are represented by 1's, nonholes are represented by -1's, and supporting area is represented by 0's. The self-supporting array can be used for low energy applications where substrates would greatly reduce throughput. The balance correlation response function for the self-supporting array pattern provides an accurate representation of the source of nonfocusable radiation.

Fenimore, Edward E. (Los Alamos, NM)

1983-01-01T23:59:59.000Z

500

The effect of sandstorms on PV arrays and components  

SciTech Connect (OSTI)

Photovoltaic (PV) systems deployed in desert areas are exposed to wind-blown particles during most of their lifetimes. Here I describe the characteristics of wind-blown particles and with their effect on exposed surfaces. I provide insights for use in array design to minimize the effects of exposure and keep system costs as low as possible. Finally, I present some data describing the exposure of polymer-encapsulated arrays to both field and laboratory wind-blown sand environments, and I present evidence that an encapsulated or ``soft`` array has a higher abrasion resistance and, therefore, a much higher probability of surviving a severe sand environment.

Thornton, J.P.

1992-03-01T23:59:59.000Z