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1

Ball State University Completes Nation's Largest Ground-Source...  

Energy Savers [EERE]

need an all-of-the-above approach to American energy-an approach that uses homegrown and alternative energy sources designed and produced by American workers," said U.S. Energy...

2

UNIVERSITY OF COLORADO BOULDER Light from the Sun is the largest source of energy  

E-Print Network [OSTI]

's atmosphere. The Solar Influences group at LASP studies the light from the Sun and how it interacts · How solar light affects Earth's climate and atmosphere · The ways solar light affects space weatherUNIVERSITY OF COLORADO BOULDER Light from the Sun is the largest source of energy for Earth

Mojzsis, Stephen J.

3

Solar Influences Light from the Sun is the largest source of energy for Earth's  

E-Print Network [OSTI]

Solar Influences Light from the Sun is the largest source of energy for Earth's atmosphere. The Solar Influences group at LASP studies the light from the Sun and how it interacts with the Earth) · How and why light from the Sun varies in time from seconds to months to years to centuries · How solar

Mojzsis, Stephen J.

4

Finding new sources of copper in Zambia The Zambian Copperbelt is the largest known source of copper on Earth. Research at the  

E-Print Network [OSTI]

Finding new sources of copper in Zambia The Zambian Copperbelt is the largest known source of copper on Earth. Research at the University of Southampton has challenged conventional thinking about. There is great demand for copper throughout the world, particularly to supply fast-growing economies in countries

Anderson, Jim

5

publication 400-230 Feed represents the largest single production expense  

E-Print Network [OSTI]

that is the basis of comparison for energy sources. It contains around 90 percent TDN, and most of the energy comes available from feed suppliers, is readily consumed by animals, and is a fairly low-cost source of feed heavily upon forages for the basis of a feeding program, forages often must be supplemented with energy

Liskiewicz, Maciej

6

Engineered Quantum Dot Single Photon Sources  

E-Print Network [OSTI]

Fast, high efficiency, and low error single photon sources are required for implementation of a number of quantum information processing applications. The fastest triggered single photon sources to date have been demonstrated using epitaxially grown semiconductor quantum dots (QDs), which can be conveniently integrated with optical microcavities. Recent advances in QD technology, including demonstrations of high temperature and telecommunications wavelength single photon emission, have made QD single photon sources more practical. Here we discuss the applications of single photon sources and their various requirements, before reviewing the progress made on a quantum dot platform in meeting these requirements.

Sonia Buckley; Kelley Rivoire; Jelena Vuckovic

2012-10-03T23:59:59.000Z

7

Asymmetric Architecture for Heralded Single Photon Sources  

E-Print Network [OSTI]

Single photon source represent a fundamental building block for optical implementations of quantum information tasks ranging from basic tests of quantum physics to quantum communication and high-resolution quantum measurement. In this paper we investigate the performance of a multiplexed system based on asymmetric configuration of multiple heralded single photon sources. {To compare the effectiveness of different designs we introduce a single-photon source performance index that is based on the value of single photon probability required to achieve a guaranteed signal to noise ratio.} The performance and scalability comparison with both currently existing multiple-source architectures and faint laser configurations reveals an advantage the proposed scheme offers in realistic scenarios. This analysis also provides insights on the potential of using such architectures for integrated implementation.

Luca Mazzarella; Francesco Ticozzi; Alexander V. Sergienko; Giuseppe Vallone; Paolo Villoresi

2013-02-15T23:59:59.000Z

8

A Cascade Multilevel Inverter Using a Single DC Source  

E-Print Network [OSTI]

A Cascade Multilevel Inverter Using a Single DC Source Zhong Du1, Leon M. Tolbert2 3, John N inverter can be implemented using only a single DC power source and capacitors. A standard cascade multilevel inverter requires DC sources for 2 + 1 levels. Without requiring transformers, the scheme proposed

Tolbert, Leon M.

9

Methods for forming particles from single source precursors  

DOE Patents [OSTI]

Single source precursors are subjected to carbon dioxide to form particles of material. The carbon dioxide may be in a supercritical state. Single source precursors also may be subjected to supercritical fluids other than supercritical carbon dioxide to form particles of material. The methods may be used to form nanoparticles. In some embodiments, the methods are used to form chalcopyrite materials. Devices such as, for example, semiconductor devices may be fabricated that include such particles. Methods of forming semiconductor devices include subjecting single source precursors to carbon dioxide to form particles of semiconductor material, and establishing electrical contact between the particles and an electrode.

Fox, Robert V. (Idaho Falls, ID); Rodriguez, Rene G. (Pocatello, ID); Pak, Joshua (Pocatello, ID)

2011-08-23T23:59:59.000Z

10

Single atom as a macroscopic entanglement source  

E-Print Network [OSTI]

by many authors including the generation of entangled coherent state #3;1?3#4;, single photon and vacuum entanglement #3;4#4;, and two-atom entanglement #3;5#4;. More recently, generation of macroscopic entangled states via phase sensitive... cascade configuration crossing or trapped in a two-mode field cavity. The atomic level configuration is depicted in Fig. 1. The two atomic transitions #5;a#6;? #5;b#6; and #5;b#6;? #5;c#6; interact with the two cavity modes with detunings #1...

Zhou, Ling; Xiong, Han; Zubairy, M. Suhail.

2006-01-01T23:59:59.000Z

11

Fast quantum dot single photon source triggered at telecommunications wavelength  

E-Print Network [OSTI]

We demonstrate a quantum dot single photon source at 900 nm triggered at 300 MHz by a continuous wave telecommunications wavelength laser followed by an electro-optic modulator. The quantum dot is excited by on-chip-generated second harmonic radiation, resonantly enhanced by a GaAs photonic crystal cavity surrounding the InAs quantum dot. Our result suggests a path toward the realization of telecommunications-wavelength-compatible quantum dot single photon sources with speeds exceeding 1 GHz.

Kelley Rivoire; Sonia Buckley; Arka Majumdar; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2010-12-20T23:59:59.000Z

12

Smart Museum of Art receives the single largest foundation gift in its history The University of Chicago's Smart Museum of Art received a $1.25 million grant from the  

E-Print Network [OSTI]

Smart Museum of Art receives the single largest foundation gift in its history The University of Chicago's Smart Museum of Art received a $1.25 million grant from the Andrew W. Mellon Foundation in order,000 was spendable funds, used while the Smart Museum secured matching funds in the form of a $750,000 bequest from

He, Chuan

13

Sub-Rayleigh quantum imaging using single-photon sources  

SciTech Connect (OSTI)

We propose a technique capable of imaging a distinct physical object with sub-Rayleigh resolution in an ordinary far-field imaging setup using single-photon sources and linear optical tools only. We exemplify our method for the case of a rectangular aperture and two or four single-photon emitters obtaining a resolution enhanced by a factor of 2 or 4, respectively.

Thiel, C.; Zanthier, J. von [Institut fuer Optik, Information und Photonik, Universitaet Erlangen-Nuernberg, 91058 Erlangen (Germany); Bastin, T. [Institut de Physique Nucleaire, Atomique et de Spectroscopie, Universite de Liege, 4000 Liege (Belgium); Agarwal, G. S. [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072 (United States)

2009-07-15T23:59:59.000Z

14

Sources of Variability for the Single -Comparator Method in a  

E-Print Network [OSTI]

· RlM-M-2141 Sources of Variability for the Single - Comparator Method in a Heavy Water Reactor E for neutron acti- vation analysis were installed in the reactor DR 3, which is a heavy water cooled are located in the vertical tubes extending into the heavy water as shown in Fig. 1. Their characteristic

15

Efficient room-temperature source of polarized single photons  

DOE Patents [OSTI]

An efficient technique for producing deterministically polarized single photons uses liquid-crystal hosts of either monomeric or oligomeric/polymeric form to preferentially align the single emitters for maximum excitation efficiency. Deterministic molecular alignment also provides deterministically polarized output photons; using planar-aligned cholesteric liquid crystal hosts as 1-D photonic-band-gap microcavities tunable to the emitter fluorescence band to increase source efficiency, using liquid crystal technology to prevent emitter bleaching. Emitters comprise soluble dyes, inorganic nanocrystals or trivalent rare-earth chelates.

Lukishova, Svetlana G. (Honeoye Falls, NY); Boyd, Robert W. (Rochester, NY); Stroud, Carlos R. (Rochester, NY)

2007-08-07T23:59:59.000Z

16

A spintronic source of circularly polarized single photons  

E-Print Network [OSTI]

We present a spintronic single photon source which emits circularly polarized light, where the helicity is determined by an applied magnetic field. Photons are emitted from an InGaAs quantum dot inside an electrically operated spin light-emitting diode, which comprises the diluted magnetic semiconductor ZnMnSe. The circular polarization degree of the emitted light is high, reaching 83% at an applied magnetic field of 2T and 96% at 6 T. Autocorrelation traces recorded in pulsed operation mode prove the emitted light to be antibunched. The two circular polarization states could be used for representing quantum states |0> and |1> in quantum cryptography implementations.

Asshoff, Pablo; Kalt, Heinz; Hetterich, Michael

2011-01-01T23:59:59.000Z

17

Methods of forming single source precursors, methods of forming polymeric single source precursors, and single source precursors formed by such methods  

DOE Patents [OSTI]

Methods of forming single source precursors (SSPs) include forming intermediate products having the empirical formula 1/2{L.sub.2N(.mu.-X).sub.2M'X.sub.2}.sub.2, and reacting MER with the intermediate products to form SSPs of the formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2, wherein L is a Lewis base, M is a Group IA atom, N is a Group IB atom, M' is a Group IIIB atom, each E is a Group VIB atom, each X is a Group VIIA atom or a nitrate group, and each R group is an alkyl, aryl, vinyl, (per)fluoro alkyl, (per)fluoro aryl, silane, or carbamato group. Methods of forming polymeric or copolymeric SSPs include reacting at least one of HE.sup.1R.sup.1E.sup.1H and MER with one or more substances having the empirical formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2 or L.sub.2N(.mu.-X).sub.2M'(X).sub.2 to form a polymeric or copolymeric SSP. New SSPs and intermediate products are formed by such methods.

Fox, Robert V.; Rodriguez, Rene G.; Pak, Joshua J.; Sun, Chivin; Margulieux, Kelsey R.; Holland, Andrew W.

2014-09-09T23:59:59.000Z

18

Methods of forming single source precursors, methods of forming polymeric single source precursors, and single source precursors and intermediate products formed by such methods  

DOE Patents [OSTI]

Methods of forming single source precursors (SSPs) include forming intermediate products having the empirical formula 1/2{L.sub.2N(.mu.-X).sub.2M'X.sub.2}.sub.2, and reacting MER with the intermediate products to form SSPs of the formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2, wherein L is a Lewis base, M is a Group IA atom, N is a Group IB atom, M' is a Group IIIB atom, each E is a Group VIB atom, each X is a Group VIIA atom or a nitrate group, and each R group is an alkyl, aryl, vinyl, (per)fluoro alkyl, (per)fluoro aryl, silane, or carbamato group. Methods of forming polymeric or copolymeric SSPs include reacting at least one of HE.sup.1R.sup.1E.sup.1H and MER with one or more substances having the empirical formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2 or L.sub.2N(.mu.-X).sub.2M'(X).sub.2 to form a polymeric or copolymeric SSP. New SSPs and intermediate products are formed by such methods.

Fox, Robert V.; Rodriguez, Rene G.; Pak, Joshua J.; Sun, Chivin; Margulieux, Kelsey R.; Holland, Andrew W.

2012-12-04T23:59:59.000Z

19

Ultrafast electrical control of a resonantly driven single photon source  

SciTech Connect (OSTI)

We demonstrate generation of a pulsed stream of electrically triggered single photons in resonance fluorescence, by applying high frequency electrical pulses to a single quantum dot in a p-i-n diode under resonant laser excitation. Single photon emission was verified, with the probability of multiple photon emission reduced to 2.8%. We show that despite the presence of charge noise in the emission spectrum of the dot, resonant excitation acts as a filter to generate narrow bandwidth photons.

Cao, Y. [Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom); Controlled Quantum Dynamics Group, Imperial College London, London SW7 2AZ (United Kingdom); Bennett, A. J., E-mail: anthony.bennett@crl.toshiba.co.uk; Ellis, D. J. P.; Shields, A. J. [Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom); Farrer, I.; Ritchie, D. A. [Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

2014-08-04T23:59:59.000Z

20

Room temperature triggered single-photon source in the near infrared  

E-Print Network [OSTI]

We report the realization of a solid-state triggered single-photon source with narrow emission in the near infrared at room temperature. It is based on the photoluminescence of a single nickel-nitrogen NE8 colour centre in a chemical vapour deposited diamond nanocrystal. Stable single-photon emission has been observed in the photoluminescence under both continuous-wave and pulsed excitations. The realization of this source represents a step forward in the application of diamond-based single-photon sources to Quantum Key Distribution (QKD) under practical operating conditions.

E. Wu; James Rabeau; Grard Roger; Franois Treussart; Heping Zeng; Philippe Grangier; Steven Prawer; Jean-Franois Roch

2007-08-14T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Absolute Source Activity Measurement with a Single Detector  

SciTech Connect (OSTI)

In the present paper the activity of {sup 60}Co source was measured using the full absorption, sum and random coincidences (pile up) peaks and the total spectrum area in the gamma spectra. By the exact treatment of the chance coincidence and pile-up events, surprisingly good results were obtained. With the source on the detector end-cap (when the angular correlation effects are negligible), this simple method yields absolute activity values deviating from the reference activity for about 1 percent.

Bikit, I.; Nemes, T.; Mrdja, D.; Forkapic, S. [Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad (Serbia)

2009-08-26T23:59:59.000Z

22

Measurement of Coupling PDC photon sources with single-mode and multimode optical fibers  

E-Print Network [OSTI]

Measurement of Coupling PDC photon sources with single-mode and multimode optical fibers Stefania the coupling efficiency of parametric downconversion light (PDC) into single and multi-mode optical fibers models for the preparation and collection of either single-mode or multi-mode PDC light (defined by

Hart, Gus

23

Hybrid single-electron transistor as a source of quantized electric current  

E-Print Network [OSTI]

LETTERS Hybrid single-electron transistor as a source of quantized electric current JUKKA P. PEKOLA of a hybrid normal-metal­ superconductor turnstile in the form of a one-island single- electron transistor currents in the nano-ampere range but their accuracy is still limited. Surprisingly, a simple hybrid single

Loss, Daniel

24

Oldest and Largest The Weather  

E-Print Network [OSTI]

MIT's Oldest and Largest Newspaper The Weather Today: Clear skies, 45°F (70C) Tonight: Clear, cool Eilts, former U.S. Ambassador to Saudi Arabia and Egypt and Professor Emeritus of Inter- national

25

An Efficient Source of Single Photons: A Single Quantum Dot in a Micropost Microcavity  

E-Print Network [OSTI]

We have demonstrated efficient production of triggered single photons by coupling a single semiconductor quantum dot to a three-dimensionally confined optical mode in a micropost microcavity. The efficiency of emitting single photons into a single-mode travelling wave is approximately 38%, which is nearly two orders of magnitude higher than for a quantum dot in bulk semiconductor material. At the same time, the probability of having more than one photon in a given pulse is reduced by a factor of seven as compared to light with Poissonian photon statistics.

Matthew Pelton; Charles Santori; Jelena Vuckovic; Bingyang Zhang; Glenn S. Solomon; Jocelyn Plant; Yoshihisa Yamamoto

2002-08-08T23:59:59.000Z

26

A mathematical criterion for single photon sources used in quantum cryptography  

E-Print Network [OSTI]

A single photon source (SPS) is very important for quantum computation. In particular, it is essential for secured quantum cryptography. But there is no perfect SPS in reality. Therefore, probabilistic SPS where probability of simultaneous emission of two, three, four and more photon is less than the emission of a single photon are used. Since classical photon always comes in bunch, the required single photon source must be nonclassical. In the well-known antibunched state the rate of simultaneous emission of two photon is less than that of single photon. But the requirement of quantum cryptography is a multiphoton version of the antibunched state or the higher order antibunched state. Recently we have reported a mathematical criterion for higher order antibunching. Here we have shown that any proposal for SPS to be used in quantum cryptography should satisfy this criterion. We have studied four wave mixing as a possible candidate of single photon source.

Anirban Pathak

2007-05-11T23:59:59.000Z

27

Post-Nonlinear Sparse Component Analysis Using Single-Source Zones and Functional Data Clustering  

E-Print Network [OSTI]

In this paper, we introduce a general extension of linear sparse component analysis (SCA) approaches to postnonlinear (PNL) mixtures. In particular, and contrary to the state-of-art methods, our approaches use a weak sparsity source assumption: we look for tiny temporal zones where only one source is active. We investigate two nonlinear single-source confidence measures, using the mutual information and a local linear tangent space approximation (LTSA). For this latter measure, we derive two extensions of linear single-source measures, respectively based on correlation (LTSA-correlation) and eigenvalues (LTSA-PCA). A second novelty of our approach consists of applying functional data clustering techniques to the scattered observations in the above single-source zones, thus allowing us to accurately estimate them.We first study a classical approach using a B-spline approximation, and then two approaches which locally approximate the nonlinear functions as lines. Finally, we extend our PNL methods to more gener...

Puigt, Matthieu; Mouchtaris, Athanasios

2012-01-01T23:59:59.000Z

28

Source of methane and methods to control its formation in single chamber microbial electrolysis cells  

E-Print Network [OSTI]

Source of methane and methods to control its formation in single chamber microbial electrolysis online 31 March 2009 Keywords: Hydrogen Microbial electrolysis cell (MEC) Methane Single chamber Exoelectrogenic a b s t r a c t Methane production occurs during hydrogen gas generation in microbial electrolysis

29

RJMCMC POINT PROCESS SAMPLER FOR SINGLE SENSOR SOURCE SEPARATION: AN APPLICATION TO ELECTRIC LOAD MONITORING  

E-Print Network [OSTI]

case of space-heating, which is the most consuming electric end-use in France1 . This is a source of the electric systems will undoubtedly be helpful to meet these challenges. Actually, a good knowledgeRJMCMC POINT PROCESS SAMPLER FOR SINGLE SENSOR SOURCE SEPARATION: AN APPLICATION TO ELECTRIC LOAD

Boyer, Edmond

30

Dye-doped cholesteric-liquid-crystal room-temperature single-photon source*  

E-Print Network [OSTI]

Dye-doped cholesteric-liquid-crystal room-temperature single-photon source* SVETLANA G. LUKISHOVAy) increase the source efficiency, firstly, by aligning the dye molecules along the direction preferable output photons), secondly, by tuning the 1-D photonic-band-gap microcavity to the dye fluorescence band

Boyd, Robert W.

31

Deterministic source of a train of indistinguishable single-photon pulses with single-atom-cavity system  

E-Print Network [OSTI]

We present a mechanism to produce indistinguishable single-photon pulses on demand from an optical cavity. The sequences of two laser pulses generate, at the two Raman transitions of a four-level atom, the same cavity-mode photons without repumping of the atom between photon generations. Photons are emitted from the cavity with near-unit efficiency in well-defined temporal modes of identical shapes controlled by the laser fields. The second order correlation function reveals the single-photon nature of the proposed source. A realistic setup for the experimental implementation is presented.

A. Gogyan; S. Gurin; H. -R. Jauslin; Yu. Malakyan

2010-05-01T23:59:59.000Z

32

Accelerating Materials Discovery With World's Largest Database...  

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

Expanding the World's Largest Database of Elastic Properties Expanding the World's Largest Database of Elastic Properties NERSC, Materials Project Help Scientists Increase...

33

Entanglement formation and violation of Bell's inequality with a semiconductor single photon source  

E-Print Network [OSTI]

We report the generation of polarization-entangled photons, using a quantum dot single photon source, linear optics and photodetectors. Two photons created independently are observed to violate Bell's inequality. The density matrix describing the polarization state of the postselected photon pairs is also reconstructed, and agrees well with a simple model predicting the quality of entanglement from the known parameters of the single photon source. Our scheme provides a method to generate no more than one entangled photon pair per cycle, a feature useful to enhance quantum cryptography protocols using entangled photons.

David Fattal; Kyo Inoue; Jelena Vuckovic; Charles Santori; Glenn S. Solomon; Yoshihisa Yamamoto

2003-05-09T23:59:59.000Z

34

Measurement of Coupling PDC photon sources with single-mode and multimode optical fibers  

E-Print Network [OSTI]

We investigate the coupling efficiency of parametric downconversion light (PDC) into single and multi-mode optical fibers as a function of the pump beam diameter, crystal length and walk-off. We outline two different theoretical models for the preparation and collection of either single-mode or multi-mode PDC light (defined by, for instance, multi-mode fibers or apertures, corresponding to bucket detection). Moreover, we define the mode-matching collection efficiency, important for realizing a single-photon source based on PDC output into a well-defined single spatial mode. We also define a multimode collection efficiency that is useful for single-photon detector calibration applications.

Stefania Castelletto; Ivo Pietro Degiovanni; Alan Migdall; Valentina Schettini; Michael Ware

2004-08-03T23:59:59.000Z

35

Measurement of Coupling PDC photon sources with single-mode and multimode optical fibers  

E-Print Network [OSTI]

We investigate the coupling efficiency of parametric downconversion light (PDC) into single and multi-mode optical fibers as a function of the pump beam diameter, crystal length and walk-off. We outline two different theoretical models for the preparation and collection of either single-mode or multi-mode PDC light (defined by, for instance, multi-mode fibers or apertures, corresponding to bucket detection). Moreover, we define the mode-matching collection efficiency, important for realizing a single-photon source based on PDC output into a well-defined single spatial mode. We also define a multimode collection efficiency that is useful for single-photon detector calibration applications.

Castelletto, S; Migdal, A; Schettini, V; Ware, M; Castelletto, Stefania; Degiovanni, Ivo Pietro; Migdall, Alan; Schettini, Valentina; Ware, Michael

2004-01-01T23:59:59.000Z

36

A Five-Level Three-Phase Hybrid Cascade Multilevel Inverter Using a Single DC Source  

E-Print Network [OSTI]

A Five-Level Three-Phase Hybrid Cascade Multilevel Inverter Using a Single DC Source for a PM to construct a 3-phase 5-level cascade multilevel inverter to be used as a drive for a PM traction motor. The 5-level inverter consists of a standard 3-leg inverter (one leg for each phase) and an H-bridge in series

Tolbert, Leon M.

37

Single Photon Source Using Laser Pulses and Two-Photon Absorption  

E-Print Network [OSTI]

We have previously shown that two-photon absorption (TPA) and the quantum Zeno effect can be used to make deterministic quantum logic devices from an otherwise linear optical system. Here we show that this type of quantum Zeno gate can be used with additional two-photon absorbing media and weak laser pulses to make a heralded single photon source. A source of this kind is expected to have a number of practical advantages that make it well suited for large scale quantum information processing applications.

B. C. Jacobs; T. B. Pittman; J. D. Franson

2006-03-17T23:59:59.000Z

38

Electroluminescence from isolated defects in zinc oxide, towards electrically triggered single photon sources at room temperature  

E-Print Network [OSTI]

Single photon sources are required for a wide range of applications in quantum information science, quantum cryptography and quantum communications. However, so far majority of room temperature emitters are only excited optically, which limits their proper integration into scalable devices. In this work, we overcome this limitation and present room temperature electrically triggered light emission from localized defects in zinc oxide (ZnO) nanoparticles and thin films. The devices emit at the red spectral range and show excellent rectifying behavior. The emission is stable over an extensive period of time, providing an important prerequisite for practical devices. Our results open up possibilities to build new ZnO based quantum integrated devices that incorporate solid-state single photon sources for quantum information technologies.

Choi, Sumin; Gentle, Angus; Ton-That, Cuong; Phillips, Matthew R; Aharonovich, Igor

2015-01-01T23:59:59.000Z

39

Linear optics schemes for entanglement distribution with realistic single-photon sources  

E-Print Network [OSTI]

We study the operation of linear optics schemes for entanglement distribution based on nonlocal photon subtraction when input states, produced by imperfect single-photon sources, exhibit both vacuum and multiphoton contributions. Two models for realistic photon statistics with radically different properties of the multiphoton "tail" are considered. The first model assumes occasional emission of double photons and linear attenuation, while the second one is motivated by heralded sources utilizing spontaneous parametric down-conversion. We find conditions for the photon statistics that guarantee generation of entanglement in the relevant qubit subspaces and compare it with classicality criteria. We also quantify the amount of entanglement that can be produced with imperfect single-photon sources, optimized over setup parameters, using as a measure entanglement of formation. Finally, we discuss verification of the generated entanglement by testing Bell's inequalities. The analysis is carried out for two schemes. The first one is the well-established one-photon scheme, which produces a photon in a delocalized superposition state between two nodes, each of them fed with one single photon at the input. As the second scheme, we introduce and analyze a linear-optics analog of the robust scheme based on interfering two Stokes photons emitted by atomic ensembles, which does not require phase stability between the nodes.

Miko?aj Lasota; Czes?aw Radzewicz; Konrad Banaszek; Rob Thew

2014-09-24T23:59:59.000Z

40

Livestock & Poultry --The Largest Segment of Georgia Agriculture  

E-Print Network [OSTI]

Crops* 40% Poultry 52% Livestock & Dairy 8% Poultry -- The Largest Segment of Georgia Agriculture Percent Total by Commodity Prepared by: Georgia Poultry Federation Source: University of Georgia, 2010 Pounds Produced: 1970 ­ 2011 Prepared by: Georgia Poultry Federation From: Georgia Agricultural

Navara, Kristen

Note: This page contains sample records for the topic "largest single source" 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

High-brightness single photon source from a quantum dot in a directional-emission nanocavity  

E-Print Network [OSTI]

We analyze a single photon source consisting of an InAs quantum dot coupled to a directional-emission photonic crystal (PC) cavity implemented in GaAs. On resonance, the dot's lifetime is reduced by more than 10 times, to 45ps. Compared to the standard three-hole defect cavity, the perturbed PC cavity design improves the collection efficiency into an objective lens (NA=0.75) by factor 6, and improves the coupling efficiency of the collected light into a single mode fiber by factor 1.9. The emission frequency is determined by the cavity mode, which is antibunched to g(2)=0.05. The cavity design also enables efficient coupling to a higher-order cavity mode for local optical excitation of cavity-coupled quantum dots.

Mitsuru Toishi; Dirk Englund; Andrei Faraon; Jelena Vuckovic

2009-04-08T23:59:59.000Z

42

Experimental filtering of two-, four-, and six-photon singlets from single PDC source  

E-Print Network [OSTI]

Invariant entangled states remain unchanged under simultaneous identical unitary transformations of all their subsystems. We experimentally generate and characterize such invariant two-, four-, and six-photon polarization entangled states. This is done only with a suitable filtering procedure of multiple emissions of entangled photon pairs from a single source, without any interferometric overlaps. We get the desired states utilizing bosonic emission enhancement due to indistinguishability. The setup is very stable, and gives high interference contrasts. Thus, the process is a very likely candidate for various photonic demonstrations of quantum information protocols.

Radmark, Magnus; Zukowski, Marek; Bourennane, Mohamed

2009-01-01T23:59:59.000Z

43

Experimental filtering of two-, four-, and six-photon singlets from single PDC source  

E-Print Network [OSTI]

Invariant entangled states remain unchanged under simultaneous identical unitary transformations of all their subsystems. We experimentally generate and characterize such invariant two-, four-, and six-photon polarization entangled states. This is done only with a suitable filtering procedure of multiple emissions of entangled photon pairs from a single source, without any interferometric overlaps. We get the desired states utilizing bosonic emission enhancement due to indistinguishability. The setup is very stable, and gives high interference contrasts. Thus, the process is a very likely candidate for various photonic demonstrations of quantum information protocols.

Magnus Radmark; Marcin Wiesniak; Marek Zukowski; Mohamed Bourennane

2009-03-13T23:59:59.000Z

44

Optically detected, single nanoparticle mass spectrometer with pre-filtered electrospray nanoparticle source  

SciTech Connect (OSTI)

An instrument designed for non-destructive mass analysis of single trapped nanoparticles is described. The heart of the instrument is a 3D quadrupole (Paul) trap constructed to give optical access to the trap center along ten directions, allowing passage of lasers for particle heating and detection, particle injection, collection of scattered or fluorescent photons for particle detection and mass analysis, and collection of particles on TEM grids for analysis, as needed. Nanoparticles are injected using an electrospray ionization (ESI) source, and conditions are described for spraying and trapping polymer particles, bare metal particles, and ligand stabilized particles with masses ranging from 200 kDa to >3 GDa. Conditions appropriate to ESI and injection of different types of particles are described. The instrument is equipped with two ion guides separating the ESI source and nanoparticle trap. The first ion guide is mostly to allow desolvation and differential pumping before the particles enter the trap section of the instrument. The second is a linear quadrupole guide, which can be operated in mass selective or mass band-pass modes to limit transmission to species with mass-to-charge ratios in the range of interest. With a little experience, the design allows injection of single particles into the trap upon demand.

Howder, Collin R.; Bell, David M.; Anderson, Scott L. [Chemistry Department, University of Utah, 315 S. 1400 E, Salt Lake City, Utah 84112 (United States)] [Chemistry Department, University of Utah, 315 S. 1400 E, Salt Lake City, Utah 84112 (United States)

2014-01-15T23:59:59.000Z

45

World's largest single crystal of gold verified by Los Alamos...  

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

cancer, anemia gleaned from ribosome research Complex systems influence melting of Greenland ice sheet Related Articles All Stories Secure computing for the 'Everyman' goes to...

46

World's largest single crystal of gold verified at Los Alamos  

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

on HIPPO," Vogel said. HIPPO handles a wide range of materials including rocks, battery materials, alloys, and nuclear fuel mock-ups. History of Rakovan and the Lujan...

47

World's largest single crystal of gold verified at Los Alamos  

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 JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered energy consumption byAbout SRNL Home SRNL main campusMore than 20 Countries

48

Which optical processes are suitable to make probabilistic single photon sources for quantum cryptography?  

E-Print Network [OSTI]

Single photon sources to be used in quantum cryptography must show higher order antibunching (HOA). HOA is reported by us in several many wave mixing processes. In the present work we have investigated the possibility of observing HOA in multiwave mixing processes in general. The generalized Hamiltonian is solved for several particular cases in Heisenberg picture and possibility of observing HOA is investigated with the help of criterion of Pathak and Garcia. Several particular cases of the generalized Hamiltonian are solved with the help of short time approximation technique and HOA is reported for pump modes of different multiwave mixing processes. It is also found that HOA can not be observed for the signal and stokes modes in of the cases studied here.

Amit Verma; Anirban Pathak

2009-09-02T23:59:59.000Z

49

Ball State University Completes Nation's Largest Ground-Source Geothermal  

Energy Savers [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 Delicious RankCombustionImprovement3--Logistical5/08 Attendance List1-02EvaluationJohn

50

Largest Ice-Bank Promotes Load Management  

E-Print Network [OSTI]

California's largest ice-bank storage system is an example of how thermal storage can be applied to both new and existing buildings. At the Union Oil Company in Brea, California, one massive ice-storage system satisfies the air conditioning needs...

Brarmann, G. L.

1983-01-01T23:59:59.000Z

51

Analysis of Selection of Single or Double U-bend Pipes in a Ground Source Heat Pump System  

E-Print Network [OSTI]

The ground source heat pump (GSHP) system is widely used because of its energy-saving and environmental-friendly characteristics. The buried pipes heat exchangers play an important role in the whole GSHP system design. However, in most cases, single...

Shu, H.; Duanmu, L.; Hua, R.

2006-01-01T23:59:59.000Z

52

The neutron drip line: single-particle degrees of freedom and pairing properties as sources of theoretical uncertainties  

E-Print Network [OSTI]

The sources of theoretical uncertainties in the prediction of the two-neutron drip line are analyzed in the framework of covariant density functional theory. We concentrate on single-particle and pairing properties as potential sources of these uncertainties. The major source of these uncertainties can be traced back to the differences in the underlying single-particle structure of the various covariant energy density functionals (CEDF). It is found that the uncertainties in the description of single-particle energies at the two-neutron drip line are dominated by those existing already in known nuclei. Only approximately one third of these uncertainties are due to the uncertainties in the isovector channel of CEDF's. Thus, improving the CEDF description of single-particle energies in known nuclei will also reduce the uncertainties in the prediction of the position of two-neutron drip line. The predictions of pairing properties in neutron rich nuclei depend on the CEDF. Although pairing properties affect moderately the position of the two-neutron drip line they represent only a secondary source for the uncertainties in the definition of the position of the two-neutron drip line.

A. V. Afanasjev; S. E. Agbemava; D. Ray; P. Ray

2015-01-17T23:59:59.000Z

53

Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps...  

Office of Environmental Management (EM)

Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's Solar Leadership Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's...

54

World's Largest Concentrating Solar Power Plant Opens in California...  

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

World's Largest Concentrating Solar Power Plant Opens in California World's Largest Concentrating Solar Power Plant Opens in California February 19, 2014 - 12:00am Addthis Ivanpah,...

55

Lightning Dock KGRA, New Mexico's Largest Geothermal Greenhouse...  

Open Energy Info (EERE)

Largest Geothermal Greenhouse, Largest Aquaculture Facility, and First Binary Electrical Power Plant. Geo-Heat Center Bulletin. 23:37-41. Related Geothermal Exploration Activities...

56

World's Largest Post-Combustion Carbon Capture Project Begins...  

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

World's Largest Post-Combustion Carbon Capture Project Begins Construction World's Largest Post-Combustion Carbon Capture Project Begins Construction July 15, 2014 - 9:55am Addthis...

57

SEP Success Story: Washington State Becomes Largest Public Consumer...  

Energy Savers [EERE]

SEP Success Story: Washington State Becomes Largest Public Consumer of Biodiesel SEP Success Story: Washington State Becomes Largest Public Consumer of Biodiesel December 14, 2011...

58

The neutron drip line: single-particle degrees of freedom and pairing properties as sources of theoretical uncertainties  

E-Print Network [OSTI]

The sources of theoretical uncertainties in the prediction of the two-neutron drip line are analyzed in the framework of covariant density functional theory. We concentrate on single-particle and pairing properties as potential sources of these uncertainties. The major source of these uncertainties can be traced back to the differences in the underlying single-particle structure of the various covariant energy density functionals (CEDF). It is found that the uncertainties in the description of single-particle energies at the two-neutron drip line are dominated by those existing already in known nuclei. Only approximately one third of these uncertainties are due to the uncertainties in the isovector channel of CEDF's. Thus, improving the CEDF description of single-particle energies in known nuclei will also reduce the uncertainties in the prediction of the position of two-neutron drip line. The predictions of pairing properties in neutron rich nuclei depend on the CEDF. Although pairing properties affect moder...

Afanasjev, A V; Ray, D; Ray, P

2015-01-01T23:59:59.000Z

59

MONO1001 : A source for singly charged ions applied to the production of multicharged fullerene beams  

E-Print Network [OSTI]

(from pure C60 and C70 powder) will be shown and the influence of several source parameters (HF-power, support gas, gas pressure, ...) will be discussed specifying the conditions necessary for an optimum ion

Boyer, Edmond

60

Single-Microphone Blind Audio Source Separation via Gaussian Short+Long Term AR Models  

E-Print Network [OSTI]

the source separation can be performed satisfactorily, especially in clean environment, for example by using, STEricsson, Cisco, BMW Group , SAP, Monaco Telecom and Symantec. The research reported herein was also

Gesbert, David

Note: This page contains sample records for the topic "largest single source" 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

Fabrication and characterization of single carbon nanotube emitters as point electron sources  

E-Print Network [OSTI]

a producing micron-size carbon fibers which contain single carbon nanotubes at their cores by a chemical vapor of the fractured carbon fiber, a multiwalled nanotube sticks out due to its different fracture toughness from the carbon fiber that is largely made of amorphous carbon. The pro- truded carbon nanotubes are usually 4

Qin, Lu-Chang

62

The Largest Cluster in Subcritical Percolation  

E-Print Network [OSTI]

The statistical behavior of the size (or mass) of the largest cluster in subcritical percolation on a finite lattice of size $N$ is investigated (below the upper critical dimension, presumably $d_c=6$). It is argued that as $N \\to \\infty$ the cumulative distribution function converges to the Fisher-Tippett (or Gumbel) distribution $e^{-e^{-z}}$ in a certain weak sense (when suitably normalized). The mean grows like $s_\\xi^* \\log N$, where $s_\\xi^*(p)$ is a ``crossover size''. The standard deviation is bounded near $s_\\xi^* \\pi/\\sqrt{6}$ with persistent fluctuations due to discreteness. These predictions are verified by Monte Carlo simulations on $d=2$ square lattices of up to 30 million sites, which also reveal finite-size scaling. The results are explained in terms of a flow in the space of probability distributions as $N \\to \\infty$. The subcritical segment of the physical manifold ($0 < p < p_c$) approaches a line of limit cycles where the flow is approximately described by a ``renormalization group'' from the classical theory of extreme order statistics.

Martin Z. Bazant

2000-05-05T23:59:59.000Z

63

World's Largest Solar Energy Project Heads to Mojave | Department...  

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

Largest Solar Energy Project Heads to Mojave April 16, 2010 - 4:47pm Addthis A California company will harness the Mojave Desert sunshine to create the world's largest solar...

64

Renewable, Green LNG: Update on the World's Largest Landill Gass...  

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

Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Presentation at the...

65

SOURCE?  

Energy Savers [EERE]

Department of Energy (DOE) in partnership with Lawrence Berkeley National Laboratory (LBNL), is an open-source code package designed to be a common, low-cost, standardized tool...

66

On-chip single photon sources based on quantum dots in photonic crystal structures  

E-Print Network [OSTI]

of this dissertation have appeared or will appear in form of the following journal articles and contributed talks at international conferences. Articles A. Schwagmann, S. Kalliakos, I. Farrer, J. P. Griffiths, G. A. C. Jones, D. A. Ritchie, and A. J. Shields. On... -chip single photon emission from an integrated semiconductor quantum dot into a photonic crystal waveguide. Applied Physics Letters 99, 261108 (2011). A. Schwagmann, S. Kalliakos, D. J. P. Ellis, I. Farrer, J. P. Griffiths, G. A. C. Jones, D. A. Ritchie...

Schwagmann, Andre

2013-02-05T23:59:59.000Z

67

Numerical investigation of mid-infrared Raman soliton source generation in endless single mode fluoride fibers  

SciTech Connect (OSTI)

We numerically investigate Raman soliton generation in a fluoride photonic crystal fiber (PCF) pumped by 1.93 ?m femtosecond fiber lasers in order to get widely tunable laser source in the mid-infrared region. The simulated results show that a continuously tunable range (1.93???3.95??m) over 2000?nm is achieved in 1-m-long fluoride PCF pumped by a 1.93??m femtosecond fiber laser with a pulse width of 200 fs. The power conversion efficiency is also calculated and the maximum efficiency can be up to 84.27%.

Liu, Lai; Qin, Guan-Shi, E-mail: qings@jlu.edu.cn; Tian, Qi-jun; Zhao, Dan; Qin, Wei-Ping, E-mail: wpqin@jlu.edu.cn [State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 (China)

2014-04-28T23:59:59.000Z

68

Multiple time scale blinking in InAs quantum dot single-photon sources  

E-Print Network [OSTI]

We use photon correlation measurements to study blinking in single, epitaxially-grown self-assembled InAs quantum dots situated in circular Bragg grating and microdisk cavities. The normalized second-order correlation function g(2)(\\tau) is studied across eleven orders of magnitude in time, and shows signatures of blinking over timescales ranging from tens of nanoseconds to tens of milliseconds. The g(2)(\\tau) data is fit to a multi-level system rate equation model that includes multiple non-radiating (dark) states, from which radiative quantum yields significantly less than 1 are obtained. This behavior is observed even in situations for which a direct histogramming analysis of the emission time-trace data produces inconclusive results.

Marcelo Davanco; C. Stephen Hellberg; Serkan Ates; Antonio Badolato; Kartik Srinivasan

2014-04-21T23:59:59.000Z

69

World's Largest Gold Crystal Studied at Los Alamos  

ScienceCinema (OSTI)

When geologist John Rakovan needed better tools to investigate whether a dazzling 217.78-gram piece of gold was in fact the world's largest single-crystal specimen - a distinguishing factor that would not only drastically increase its market value but also provide a unique research opportunity - he traveled to Los Alamos National Laboratory's Lujan Neutron Scattering Center to peer deep inside the mineral using neutron diffractometry. Neutrons, different from other probes such as X-rays and electrons, are able to penetrate many centimeters deep into most materials. Revealing the inner structure of a crystal without destroying the sample - imperative, as this one is worth an estimated $1.5 million - would allow Rakovan and Lujan Center collaborators Sven Vogel and Heinz Nakotte to prove that this exquisite nugget, which seemed almost too perfect and too big to be real, was a single crystal and hence a creation of nature. Its owner, who lives in the United States, provided the samples to Rakovan to assess the crystallinity of four specimens, all of which had been found decades ago in Venezuela.

Vogel, Sven; Nakotte, Heinz

2015-01-07T23:59:59.000Z

70

Decomposition of molybdate-hexamethylenetetramine complex: One single source route for different catalytic materials  

SciTech Connect (OSTI)

Decomposition of ammonium heptamolybdate-hexamethylentetramine (HMTA) complex (HMTA){sub 2}(NH{sub 4}){sub 4}Mo{sub 7}O{sub 24}.2H{sub 2}O was studied as a function of treatment conditions in the range 300-1173 K. The evolution of solid products during decomposition was studied by thermal analysis and in situ EXAFS. Depending on the nature of the gas used for treatment, single phases of highly dispersed nitrides Mo{sub 2}N, carbide Mo{sub 2}C, or oxide MoO{sub 2} can be obtained. The nature of the products obtained was explained by qualitative thermodynamical considerations. Morphology of the solids considerably depends on such preparation parameters as temperature and mass velocity of the gas flow. For the nitride-based materials, catalytic activity was evaluated in the model thiophene HDS reaction. It was demonstrated that NH{sub 3}-treated samples showed better catalytic activity than N{sub 2}-treated ones due to cleaner surface and better morphology. Transmission microscopy, XRD and XPS studies showed that MoS{sub 2} is formed on the surface during HDS reaction or sulfidation with H{sub 2}S. Optimized nitride-derived catalysts showed mass activity several times higher than unsupported MoS{sub 2} or MoS{sub 2}/Al{sub 2}O{sub 3} reference catalyst. - Graphical Abstract: Depending on the conditions, decomposition of molybdate-HTMA complex yields highly dispersed molybdenum nitride, carbide or oxide. Research Highlights: > Decomposition of molybdate-HTMA complex yields highly dispersed Mo{sub 2}N, Mo{sub 2}C or MoO{sub 2}. > In situ EXAFS shows formation of common amorphous product MoC{sub x}N{sub y}O{sub z} at 673 K. > Crystalline Mo{sub 2}N with surface area near 200 m{sup 2}/g was obtained at 823 K. > High mass activity in thiophene HDS was observed.

Chouzier, Sandra [Institut de recherches sur la catalyse et l'environnement de Lyon UMR5256, CNRS-Universite de Lyon 1, 2 avenue Albert Einstein, 69626 Villeurbanne cedex (France); Czeri, Tivadar; Roy-Auberger, Magalie; Pichon, Christophe [IFP Energies nouvelles, BP 3, 69390 Vernaison (France); Geantet, Christophe; Vrinat, Michel [Institut de recherches sur la catalyse et l'environnement de Lyon UMR5256, CNRS-Universite de Lyon 1, 2 avenue Albert Einstein, 69626 Villeurbanne cedex (France); Afanasiev, Pavel, E-mail: pavel.afanasiev@ircelyon.univ-lyon1.fr [Institut de recherches sur la catalyse et l'environnement de Lyon UMR5256, CNRS-Universite de Lyon 1, 2 avenue Albert Einstein, 69626 Villeurbanne cedex (France)

2011-10-15T23:59:59.000Z

71

Emission spectra and quantum efficiency of single-photon sources in the cavity-QED strong-coupling regime  

E-Print Network [OSTI]

We derive analytical formulas for the forward emission and side emission spectra of cavity-modified single-photon sources, as well as the corresponding normal-mode oscillations in the cavity quantum electrodynamics (QED) strong-coupling regime. We investigate the effects of pure dephasing, treated in the phase-diffusion model based on a Wiener-Levy process, on the emission spectra and normal-mode oscillations. We also extend our previous calculation of quantum efficiency to include the pure dephasing process. All results are obtained in the Weisskopf-Wigner approximation for an impulse-excited emitter. We find that the spectra are broadened, the depths of the normal-mode oscillations are reduced and the quantum efficiency is decreased in the presence of pure dephasing.

Guoqiang Cui; M. G. Raymer

2008-10-30T23:59:59.000Z

72

NNSA Awards Contract for Largest Federal Wind Farm to Siemens...  

National Nuclear Security Administration (NNSA)

Contract for Largest Federal Wind Farm to Siemens Government Technologies, Inc. | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission...

73

EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline...  

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

Interstate Pipelines Table About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Thirty Largest U.S. Interstate Natural...

74

Energy Department Addresses Largest Gathering of Geothermal Energy...  

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

Resources Council (GRC) in Reno, Nevada-the industry's largest annual gathering of geothermal energy stakeholders in the nation. In his keynote address, Hollett discussed...

75

Fabrication of InAs quantum dots in AlAs/GaAs DBR pillar microcavities for single photon sources  

SciTech Connect (OSTI)

We report the molecular beam epitaxy growth of low-density strain-induced InAs quantum dots (QD) embedded in an AlAs/GaAs distributed Bragg reflector structure for a triggered photon source. By optimal selection of growth temperature, InAs deposited thickness and other experimental parameters, it is possible to grow low density (10/{mu}m{sup 2}) InAs quantum dots with a suitable emission wavelength for a triggered photon source. The empirical formulas for the refractive indices of AlAs and GaAs materials at high temperature over a wide wavelength range are constructed by combining high resolution x-ray diffraction, dynamic optical reflectivity, and optical reflectivity spectrum techniques. Utilizing the electron-beam lithography and electron-cyclotron-resonance plasma etching techniques, a micropost microcavity with the top diameter of 0.6 {mu}m and the post height of 4.2 {mu}m has been fabricated. Narrow, spectrally limited single QD emission embedded in a micropost microcavity is observed in the photoluminescence.

Zhang Bingyang; Solomon, Glenn S.; Pelton, Matthew; Plant, Jocelyn; Santori, Charles; Vuckovic, Jelena; Yamamoto, Yoshihisa [Quantum Entanglement Project, ICORP, JST, Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4085 (United States)

2005-04-01T23:59:59.000Z

76

Largest US oil and gas fields, August 1993  

SciTech Connect (OSTI)

The Largest US Oil and Gas Fields is a technical report and part of an Energy Information Administration (EIA) series presenting distributions of US crude oil and natural gas resources, developed using field-level data collected by EIA`s annual survey of oil and gas proved reserves. The series` objective is to provide useful information beyond that routinely presented in the EIA annual report on crude oil and natural gas reserves. These special reports also will provide oil and gas resource analysts with a fuller understanding of the nature of US crude oil and natural gas occurrence, both at the macro level and with respect to the specific subjects addressed. The series` approach is to integrate EIA`s crude oil and natural gas survey data with related data obtained from other authoritative sources, and then to present illustrations and analyses of interest to a broad spectrum of energy information users ranging from the general public to oil and gas industry personnel.

Not Available

1993-08-06T23:59:59.000Z

77

Largest cluster in subcritical percolation Martin Z. Bazant  

E-Print Network [OSTI]

Largest cluster in subcritical percolation Martin Z. Bazant Department of Mathematics The statistical behavior of the size or mass of the largest cluster in subcritical percolation on a finite lattice of probability distributions as N . The subcritical segment of the physical manifold (0 p pc) approaches a line

Bazant, Martin Z.

78

Finite n Largest Eigenvalue Probability Distribution Function of Gaussian Ensembles  

E-Print Network [OSTI]

In this paper we focus on the finite n probability distribution function of the largest eigenvalue in the classical Gaussian Ensemble of n by n matrices (GEn). We derive the finite n largest eigenvalue probability distribution function for the Gaussian Orthogonal and Symplectic Ensembles and also prove an Edgeworth type Theorem for the largest eigenvalue probability distribution function of Gaussian Symplectic Ensemble. The correction terms to the limiting probability distribution are expressed in terms of the same Painleve II functions appearing in the Tracy-Widom distribution.

Leonard N. Choup

2011-01-27T23:59:59.000Z

79

New report from White House outlines largest problems facing...  

Open Energy Info (EERE)

report from White House outlines largest problems facing United States energy grid Home > Blogs > Graham7781's blog Graham7781's picture Submitted by Graham7781(2017) Super...

80

Edgeworth Expansion of the Largest Eigenvalue Distribution Function of GOE  

E-Print Network [OSTI]

In this paper we focus on the large n probability distribution function of the largest eigenvalue in the Gaussian Orthogonal Ensemble of n by n matrices (GOEn). We prove an Edgeworth type Theorem for the largest eigenvalue probability distribution function of GOEn. The correction terms to the limiting probability distribution are expressed in terms of the same Painleve II functions appearing in the Tracy-Widom distribution. We conclude with a brief discussion of the GSEn case.

Leonard N. Choup

2008-01-17T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

An electrically driven quantum dot-in-nanowire visible single photon source operating up to 150 K  

SciTech Connect (OSTI)

We demonstrate electrically pumped single photon emission up to 150 K from a single InGaN quantum dot embedded in a GaN nanowire junction diode. The InGaN dot-in-nanowire p-n junctions were grown on silicon by molecular beam epitaxy. The exciton electroluminescence from individual dot-in-nanowires is in the green spectral range (? ? 520 nm) and is detectable up to 150 K. Second order autocorrelation measurements performed at the exciton energy at an ambient temperature of 125 K show a background corrected g{sup (2)}(0) equal to 0.35, indicating dominant single photon emission. The steady state nanowire temperature under these conditions is estimated to be 150 K due to Joule heating induced by the large nanowire series resistance. Time resolved photoluminescence measurements yield an exciton radiative lifetime of 1.1 ns.

Deshpande, Saniya; Bhattacharya, Pallab [Center for Photonics and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)] [Center for Photonics and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)

2013-12-09T23:59:59.000Z

82

An empirical expression to relate aerodynamic and surface temperatures for use within1 single-source energy balance models2  

E-Print Network [OSTI]

1 n.1 An empirical expression to relate aerodynamic and surface temperatures for use within1 single that the14 reference temperature for the estimation of convective fluxes, the aerodynamic temperature, is15 between the aerodynamic22 and the air temperatures and the difference between the surface and the air

Paris-Sud XI, Université de

83

arXiv:quant-ph/0311099v217Nov2003 Coupling Efficiencies in Single Photon On-Demand Sources  

E-Print Network [OSTI]

, 13 rely on optical parametric downconversion (PDC), because it produces photons two at a time suppressing the probability of multi-photon generation.13 Most PDC based schemes (including ours) require that the PDC output be collected into a single spatial mode defined by an optical fiber. In order for these PDC

Hart, Gus

84

Largest Lyapunov Exponent for Many Particle Systems at Low Densities  

E-Print Network [OSTI]

The largest Lyapunov exponent $\\lambda^+$ for a dilute gas with short range interactions in equilibrium is studied by a mapping to a clock model, in which every particle carries a watch, with a discrete time that is advanced at collisions. This model has a propagating front solution with a speed that determines $\\lambda^+$, for which we find a density dependence as predicted by Krylov, but with a larger prefactor. Simulations for the clock model and for hard sphere and hard disk systems confirm these results and are in excellent mutual agreement. They show a slow convergence of $\\lambda^+$ with increasing particle number, in good agreement with a prediction by Brunet and Derrida.

R. van Zon; H. van Beijeren; Ch. Dellago

1997-10-27T23:59:59.000Z

85

A Five-Level Cascade Multilevel Inverter Three-Phase Motor Drive Using a Single DC Source  

SciTech Connect (OSTI)

A method is presented showing that a 5-level cascade multilevel inverter for a three-phase permanent magnet sychronous motor drive can be implemented using only a single DC link to supply a standard 3-leg inverter along with three full H-bridges supplied by capacitors. It is shown that the capacitor voltages can be regulated while achieving an output voltage waveform that is 20% greater than that obained using the standard 3-leg inverter alone. Finally conditions are given in terms of the power factor and modulation index that determine when the capacitor voltage can regulated.

Chiasson, J. N. [University of Tennessee, Knoxville (UTK)

2006-10-01T23:59:59.000Z

86

A Five-Level Cascade Multilever Invertor Three-Phase Motor Drive Using a Single DC Source  

SciTech Connect (OSTI)

A method is presented showing that a 5-level cascade multilevel inverter for a three-phase permanent magnet synchronous motor drive can be implemented using only a single DC link to supply a standard 3-leg inverter along with three full H-bridges supplied by capacitors. It is shown that the capacitor voltages can be regulated while achieving an output voltage waveform that is 20% greater than that obtained using the standard 3-leg inverter alone. Finally conditions are given in terms of the power factor and modulation index that determine when the capacitor voltage can regulated.

Chiasson, J.N. (Univ. Tennessee-Knoxville)

2006-09-15T23:59:59.000Z

87

to bring down the largest single cost associated with tapping geothermal heat,and conducting  

E-Print Network [OSTI]

Gawell,president of the Geothermal Energy Association.Gawell said the assessment also did not look Steam Act of 1970 to provide incentives to produce geothermal energy.And he said that the current be made available for geothermal energy.Two bills in Congress (Senate bill 597 and House bill 991) would

Gildor, Hezi

88

World's largest single crystal of gold verified by Los Alamos instruments  

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 MaterialsWenjun1 TableContactsOccupationalConstructionLos

89

Plasma characteristics of single- and dual-electrode ion source systems utilized in low-energy ion extraction  

SciTech Connect (OSTI)

Discharge characteristics in the upstream as well as in the downstream regions of a 50-eV positive ion beam were measured along the beam axis. Single- and dual-electrode configurations made of 0.1-mm diameter tungsten wires were tested. By varying the upstream discharge parameters, the shape of the sheath edge around the extractors, which can either be planar or cylindrical, can be controlled. The sheath eventually affected the simultaneous extraction of ions and neutralizing electrons. The dual-electrode configuration at the lower discharge current, revealed a homogeneous discharge downstream. At this condition, the edge of the sheath can be inferred to be planar which allowed the uniform extraction and propagation of low-energy ions at longer distances. The dual-electrode configuration was capable of transmitting low-energy ions up to 70 mm downstream.

Vasquez, M. R., E-mail: mrvasquez@upd.edu.ph [Department of Mining, Metallurgical, and Materials Engineering, College of Engineering, University of the Philippines, Diliman, Quezon City 1101 (Philippines); Tokumura, S.; Kasuya, T.; Wada, M. [Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)] [Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)

2014-02-15T23:59:59.000Z

90

Ball State Completes Largest U.S. Ground-Source Geothermal System...  

Office of Environmental Management (EM)

comprising 5.5 million square feet on the 660-acre campus. To provide heating, geothermal heat pumps use a fluid to transfer heat from the Earth to buildings. For cooling, the...

91

Ball State Completes Largest U.S. Ground-Source Geothermal System |  

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:Year in Review: Top Five EERE BlogAttachmentFlash2011-21FAQs BEDES| Department ofDepartment of

92

Cosmology on the Largest Scales with the SKA  

E-Print Network [OSTI]

The study of the Universe on ultra-large scales is one of the major science cases for the Square Kilometre Array (SKA). The SKA will be able to probe a vast volume of the cosmos, thus representing a unique instrument, amongst next-generation cosmological experiments, for scrutinising the Universe's properties on the largest cosmic scales. Probing cosmic structures on extremely large scales will have many advantages. For instance, the growth of perturbations is well understood for those modes, since it falls fully within the linear regime. Also, such scales are unaffected by the poorly understood feedback of baryonic physics. On ultra-large cosmic scales, two key effects become significant: primordial non-Gaussianity and relativistic corrections to cosmological observables. Moreover, if late-time acceleration is driven not by dark energy but by modifications to general relativity, then such modifications should become apparent near and above the horizon scale. As a result, the SKA is forecast to deliver transf...

Camera, S; Bull, P; Bertacca, D; Chen, X; Ferreira, P G; Kunz, M; Maartens, R; Mao, Y; Santos, M G; Shapiro, P R; Viel, M; Xu, Y

2015-01-01T23:59:59.000Z

93

Radio recombination lines from the largest bound atoms in space  

E-Print Network [OSTI]

In this paper, we report the detection of a series of radio recombination lines (RRLs) in absorption near 26 MHz arising from the largest bound carbon atoms detected in space. These atoms, which are more than a million times larger than the ground state atoms are undergoing delta transitions (n~1009, Delta n=4) in the cool tenuous medium located in the Perseus arm in front of the supernova remnant, Cassiopeia A. Theoretical estimates had shown that atoms which recombined in tenuous media are stable up to quantum levels n~1500. Our data indicates that we have detected radiation from atoms in states very close to this theoretical limit. We also report high signal-to-noise detections of alpha, beta and gamma transitions in carbon atoms arising in the same clouds. In these data, we find that the increase in line widths with quantum number (proportional to n^5) due to pressure and radiation broadening of lines is much gentler than expected from existing models which assume a power law background radiation field. This discrepancy had also been noted earlier. The model line widths had been overestimated since the turnover in radiation field of Cassiopeia A at low frequencies had been ignored. In this paper, we show that, once the spectral turnover is included in the modeling, the slower increase in line width with quantum number is naturally explained.

S. V. Stepkin; A. A. Konovalenko; N. G. Kantharia; N. Udaya Shankar

2006-10-13T23:59:59.000Z

94

Early Science Results from SOFIA, the World's Largest Airborne Observatory  

E-Print Network [OSTI]

The Stratospheric Observatory For Infrared Astronomy, or SOFIA, is the largest flying observatory ever built,consisting of a 2.7-meter diameter telescope embedded in a modified Boeing 747-SP aircraft. SOFIA is a joint project between NASA and the German Aerospace Center Deutsches Zentrum fur Luft und-Raumfahrt (DLR). By flying at altitudes up to 45000 feet, the observatory gets above 99.9 percent of the infrared-absorbing water vapor in the Earth's atmosphere. This opens up an almost uninterrupted wavelength range from 0.3-1600 microns that is in large part obscured from ground based observatories. Since its 'Initial Science Flight' in December 2010, SOFIA has flown several dozen science flights, and has observed a wide array of objects from Solar System bodies, to stellar nurseries, to distant galaxies. This paper reviews a few of the exciting new science results from these first flights which were made by three instruments: the mid-infrared camera FORCAST, the far-infrared heterodyne spectrometer GREAT, and...

De Buizer, James M

2013-01-01T23:59:59.000Z

95

Effusive molecular beam-sampled Knudsen flow reactor coupled to vacuum ultraviolet single photon ionization mass spectrometry using an external free radical source  

SciTech Connect (OSTI)

A new apparatus using vacuum ultraviolet single photon ionization mass spectrometry (VUV SPIMS) of an effusive molecular beam emanating from a Knudsen flow reactor is described. It was designed to study free radical-molecule kinetics over a significant temperature range (300630 K). Its salient features are: (1) external free radical source, (2) counterpropagating molecular beam and diffuse VUV photon beam meeting in a crossed-beam ion source of a quadrupole mass spectrometer with perpendicular ion extraction, (3) analog detection of the photocurrent of the free radical molecular cation, and (4) possibility of detecting both free radicals and closed shell species in the same apparatus and under identical reaction conditions owing to the presence of photoelectrons generated by the photoelectric effect of the used VUV-photons. The measured thermal molecular beam-to-background ratio was 6.35 0.39 for Ar and 10.86 1.59 for i-C{sub 4}H{sub 10} at 300 K, a factor of 2.52 and 1.50 smaller, respectively, than predicted from basic gas-dynamic considerations. Operating parameters as well as the performance of key elements of the instrument are presented and discussed. Coupled to an external free radical source a steady-state specific exit flow of 1.6 10{sup 11} and 5.0 10{sup 11} molecule s{sup ?1} cm{sup ?3} of C{sub 2}H{sub 5}{sup } (ethyl) and t-C{sub 4}H{sub 9}{sup } (t-butyl) free radicals have been detected using VUV SPIMS at their molecular ion m/z 29 and 57, respectively, at 300 K.

Leplat, N.; Rossi, M. J. [Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute (PSI), CH-5232 Villigen PSI (Switzerland)] [Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institute (PSI), CH-5232 Villigen PSI (Switzerland)

2013-11-15T23:59:59.000Z

96

China's Top-1000 Energy-Consuming Enterprises Program: Reducing Energy Consumption of the 1000 Largest Industrial Enterprises in China  

E-Print Network [OSTI]

Monitoring of Direct Energy Consumption in Long-Term2007. Constraining Energy Consumption of Chinas LargestProgram: Reducing Energy Consumption of the 1000 Largest

Price, Lynn

2008-01-01T23:59:59.000Z

97

The Transportation Energy and Carbon Footprints of the 100 Largest U.S. Metropolitan Areas  

SciTech Connect (OSTI)

We present estimates of the automobile and truck travel based energy and carbon footprints of the largest 100 U.S. metropolitan areas. The footprints are based on the estimated vehicle miles traveled and the transportation fuels consumed. Results are presented on an annual basis and represent end use emissions only. Total carbon emissions, emissions per capita, and emissions per dollar of gross metropolitan product are reported. Two years of annual data were examined, 2000 and 2005, with most of the in-depth analysis focused on the 2005 results. In section 2 we provide background data on the national picture and derive some carbon and energy consumption figures for the nation as a whole. In section 3 of the paper we examine the metropolitan area-wide results based on the sums and averages across all 100 metro areas, and compare these with the national totals and averages. In section 4 we present metropolitan area specific footprints and examine the considerable variation that is found to exist across individual metro areas. In doing so we pay particular attention to the effects that urban form might have on these differences. Finally, section 5 provides a summary of major findings, and a list of caveats that need to be borne in mind when using the results due to known limitations in the data sources used.

Southworth, Frank [ORNL; Sonnenberg, Anthon [Georgia Institute of Technology; Brown, Marilyn A [ORNL

2008-01-01T23:59:59.000Z

98

Which beta-shifts have a largest invariant measure? Vasso Anagnostopoulou & Oliver Jenkinson  

E-Print Network [OSTI]

Which beta-shifts have a largest invariant measure? Vasso Anagnostopoulou & Oliver Jenkinson Abstract. For a given beta-shift, the lexicographic order induces a partial order (known as first beta-shifts for which this partial order has a largest element. These beta-shifts are all of finite

Jenkinson, Oliver

99

Press Release Von Roll Inova to build the UK's largest energy-from-waste  

E-Print Network [OSTI]

, and regenerative heat recovery is used to boost the plant's overall energy efficiency. The majority of the wastePress Release Von Roll Inova to build the UK's largest energy-from-waste plant Zürich, September, 1 Roll Inova will build the UK's largest energy-from-waste facility. The contract is worth approximately

Columbia University

100

Fact #858 February 2, 2015 Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008 Dataset  

Broader source: Energy.gov [DOE]

Excel file with dataset for Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008

Note: This page contains sample records for the topic "largest single source" 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

Effect of temperature on the optical and structural properties of hexadecylamine capped ZnS nanoparticles using Zinc(II) N-ethyl-N-phenyldithiocarbamate as single source precursor  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? HDA-capped ZnS nanoparticles were synthesized via thermolysis of a single source precursor. ? Zinc(II) N-ethyl-N-phenyldithiocarbamate was used as the single source precursor. ? The growth temperature was varied to study the optical properties of the nanocrystals. ? Change in growth temperature affects the structural properties of the ZnS nanoparticles. ? Hexagonal wurtzite phase was obtained at lower temperatures while cubic sphalerite phase was obtained at higher growth temperatures. -- Abstract: Reported in this work is the synthesis of HDA (hexadecylamine)-capped ZnS nanoparticles by a single source route using Zinc(II) N-ethyl-N-phenyldithiocarbamate as a precursor. By varying the growth temperature, the temporal evolution of the optical properties and morphology of the nanocrystals were investigated. The as-synthesized nanoparticles were characterized using UVvis absorption and photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). All the particles exhibited quantum confinement in their optical properties with band edge emission at the early stage of the reaction. The XRD showed transition from hexagonal wurtzite phase to cubic sphalerite phase as the growth temperature increases. The TEM image showed that the particles are small and spherical in shape while the HRTEM image confirmed the crystalline nature of the material.

Onwudiwe, Damian C., E-mail: dconwudiwe@webmail.co.za [Chemical Resource Beneficiation, North-West University, Private Bag X6001, Potchefstroom 2520 (South Africa); Strydom, Christien [Chemical Resource Beneficiation, North-West University, Private Bag X6001, Potchefstroom 2520 (South Africa)] [Chemical Resource Beneficiation, North-West University, Private Bag X6001, Potchefstroom 2520 (South Africa); Oluwafemi, Oluwatobi S., E-mail: oluwafemi.oluwatobi@gmail.com [Department of Chemistry and Chemical Technology, Walter Sisulu University, Mthatha Campus, Private Bag X1, Mthatha (South Africa); Songca, Sandile P. [Faculty of Science, Engineering and Technology, Walter Sisulu University, P.O. Box 19712, Tecoma, East London (South Africa)] [Faculty of Science, Engineering and Technology, Walter Sisulu University, P.O. Box 19712, Tecoma, East London (South Africa)

2012-12-15T23:59:59.000Z

102

Assessing the Effect of Timing of Availability for Carbon Dioxide Storage in the Largest Oil and Gas Pools in the Alberta Basin: Description of Data and Methodology  

SciTech Connect (OSTI)

Carbon dioxide capture from large stationary sources and storage in geological media is a technologically-feasible mitigation measure for the reduction of anthropogenic emissions of CO2 to the atmosphere in response to climate change. Carbon dioxide (CO2) can be sequestered underground in oil and gas reservoirs, in deep saline aquifers, in uneconomic coal beds and in salt caverns. The Alberta Basin provides a very large capacity for CO2 storage in oil and gas reservoirs, along with significant capacity in deep saline formations and possible unmineable coal beds. Regional assessments of potential geological CO2 storage capacity have largely focused so far on estimating the total capacity that might be available within each type of reservoir. While deep saline formations are effectively able to accept CO2 immediately, the storage potential of other classes of candidate storage reservoirs, primarily oil and gas fields, is not fully available at present time. Capacity estimates to date have largely overlooked rates of depletion in these types of storage reservoirs and typically report the total estimated storage capacity that will be available upon depletion. However, CO2 storage will not (and cannot economically) begin until the recoverable oil and gas have been produced via traditional means. This report describes a reevaluation of the CO2 storage capacity and an assessment of the timing of availability of the oil and gas pools in the Alberta Basin with very large storage capacity (>5 MtCO2 each) that are being looked at as likely targets for early implementation of CO2 storage in the region. Over 36,000 non-commingled (i.e., single) oil and gas pools were examined with effective CO2 storage capacities being individually estimated. For each pool, the life expectancy was estimated based on a combination of production decline analysis constrained by the remaining recoverable reserves and an assessment of economic viability, yielding an estimated depletion date, or year that it will be available for CO2 storage. The modeling framework and assumptions used to assess the impact of the timing of CO2 storage resource availability on the regions deployment of CCS technologies is also described. The purpose of this report is to describe the data and methodology for examining the carbon dioxide (CO2) storage capacity resource of a major hydrocarbon province incorporating estimated depletion dates for its oil and gas fields with the largest CO2 storage capacity. This allows the development of a projected timeline for CO2 storage availability across the basin and enables a more realistic examination of potential oil and gas field CO2 storage utilization by the regions large CO2 point sources. The Alberta Basin of western Canada was selected for this initial examination as a representative mature basin, and the development of capacity and depletion date estimates for the 227 largest oil and gas pools (with a total storage capacity of 4.7 GtCO2) is described, along with the impact on source-reservoir pairing and resulting CO2 transport and storage economics. The analysis indicates that timing of storage resource availability has a significant impact on the mix of storage reservoirs selected for utilization at a given time, and further confirms the value that all available reservoir types offer, providing important insights regarding CO2 storage implementation to this and other major oil and gas basins throughout North America and the rest of the world. For CCS technologies to deploy successfully and offer a meaningful contribution to climate change mitigation, CO2 storage reservoirs must be available not only where needed (preferably co-located with or near large concentrations of CO2 sources or emissions centers) but also when needed. The timing of CO2 storage resource availability is therefore an important factor to consider when assessing the real opportunities for CCS deployment in a given region.

Dahowski, Robert T.; Bachu, Stefan

2007-03-05T23:59:59.000Z

103

The 100-C-7 Remediation Project. An Overview of One of DOE's Largest Remediation Projects - 13260  

SciTech Connect (OSTI)

The U.S. Department of Energy Richland Operations Office (RL), U.S. Environmental Protection Agency (EPA) and Washington Closure Hanford LLC (WCH) completed remediation of one of the largest waste sites in the U.S. Department of Energy complex. The waste site, 100-C-7, covers approximately 15 football fields and was excavated to a depth of 85 feet (groundwater). The project team removed a total of 2.3 million tons of clean and contaminated soil, concrete debris, and scrap metal. 100-C-7 lies in Hanford's 100 B/C Area, home to historic B and C Reactors. The waste site was excavated in two parts as 100-C-7 and 100-C-7:1. The pair of excavations appear like pit mines. Mining engineers were hired to design their tiered sides, with safety benches every 17 feet and service ramps which allowed equipment access to the bottom of the excavations. The overall cleanup project was conducted over a span of almost 10 years. A variety of site characterization, excavation, load-out and sampling methodologies were employed at various stages of remediation. Alternative technologies were screened and evaluated during the project. A new method for cost effectively treating soils was implemented - resulting in significant cost savings. Additional opportunities for minimizing waste streams and recycling were identified and effectively implemented by the project team. During the final phase of cleanup the project team applied lessons learned throughout the entire project to address the final, remaining source of chromium contamination. The C-7 cleanup now serves as a model for remediating extensive deep zone contamination sites at Hanford. (authors)

Post, Thomas C. [U.S. Department of Energy Richland Operations Office, Richland, WA 99352 (United States)] [U.S. Department of Energy Richland Operations Office, Richland, WA 99352 (United States); Strom, Dean [Washington Closure Hanford LLC, 2620 Fermi Avenue, Richland, WA 99354 (United States)] [Washington Closure Hanford LLC, 2620 Fermi Avenue, Richland, WA 99354 (United States); Beulow, Laura [U.S. Environmental Protection Agency, 309 Bradley Boulevard, Suite 115, Richland, WA 99352 (United States)] [U.S. Environmental Protection Agency, 309 Bradley Boulevard, Suite 115, Richland, WA 99352 (United States)

2013-07-01T23:59:59.000Z

104

NREL: Wind Research - In Largest U.S. Wind Power Markets, Curtailment...  

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

Curtailment Declines even as Wind Power Picks Up May 12, 2014 In the largest U.S. markets for wind power, the amount of curtailment has declined even as wind power has...

105

Making Translation Work BIOTECHNOLOGY'S LARGEST GLOBAL EVENT, THE BIO INTERNATIONAL CONVENTION, CONVENES  

E-Print Network [OSTI]

Making Translation Work BIOTECHNOLOGY'S LARGEST GLOBAL EVENT, THE BIO INTERNATIONAL CONVENTION- tunities and discussing industry trends, investments, and policies meant to better the world.The gathering reasonable protection of commercial interests within strictly defined domains of joint activity, while

Mullins, Dyche

106

In less than 40 years Linkping University has grown into one of Sweden's largest academic institutions  

E-Print Network [OSTI]

#12;#12;3 In less than 40 years Linköping University has grown into one of Sweden's largest much emphasis on internationalisation and cooperation at Linköping University. Sweden is often cited

Zhao, Yuxiao

107

Largest Federally Owned Wind Farm Breaks Ground at U.S. Weapons...  

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

the country's largest and fastest growing market. With 12,214 megawatts of total wind capacity installed at the end of last year, Texas has more than twice as much wind power...

108

Properties of the largest fragment in multifragmentation: a canonical thermodynamic calculation  

E-Print Network [OSTI]

Many calculations for the production of light and intermediate particles resulting from heavy ion collisions at intermediate energies exist. Calculations of properties of the largest fragment resulting from multifragmentation are rare. In this paper we compute these properties and compare them with the data for the case of gold on carbon. We use the canonical thermodynamic model. The model also gives a bimodal distribution for the largest fragment in a narrow energy range.

G. Chaudhuri; S. Das Gupta

2007-02-27T23:59:59.000Z

109

Assistant Deputy Executive Officer Mobile Source Division  

E-Print Network [OSTI]

sources, including all refineries and power plants Top NOx Emissions Sources in 2023 #12;Locomotive Light Duty Trucks/SUVs NOx(tons/day) * Oceangoing vessels = 32tons/day **RECLAIM: 320 largest stationary - Manufacturers may elect to meet a combined NOx+HC standard of 1.4 g/bhp-hr. Source: http://www.dieselnet.com/standards/us

California at Davis, University of

110

Front propagation techniques to calculate the largest Lyapunov exponent of dilute hard disk gases  

E-Print Network [OSTI]

A kinetic approach is adopted to describe the exponential growth of a small deviation of the initial phase space point, measured by the largest Lyapunov exponent, for a dilute system of hard disks, both in equilibrium and in a uniform shear flow. We derive a generalized Boltzmann equation for an extended one-particle distribution that includes deviations from the reference phase space point. The equation is valid for very low densities n, and requires an unusual expansion in powers of 1/|ln n|. It reproduces and extends results from the earlier, more heuristic clock model and may be interpreted as describing a front propagating into an unstable state. The asymptotic speed of propagation of the front is proportional to the largest Lyapunov exponent of the system. Its value may be found by applying the standard front speed selection mechanism for pulled fronts to the case at hand. For the equilibrium case, an explicit expression for the largest Lyapunov exponent is given and for sheared systems we give explicit expressions that may be evaluated numerically to obtain the shear rate dependence of the largest Lyapunov exponent.

R. van Zon; H. van Beijeren

2002-07-02T23:59:59.000Z

111

he University of Texas at Austin Department of Astronomy is one of the largest astronomy  

E-Print Network [OSTI]

T he University of Texas at Austin Department of Astronomy is one of the largest astronomy programs virtually all of modern astronomy, placing the Department among the top few American astronomical institutions. The association between the Department of Astronomy and McDonald Observatory provides excellent

Jefferys, William

112

Do Some Business Models Perform Better than Others? A Study of the 1000 Largest US  

E-Print Network [OSTI]

Do Some Business Models Perform Better than Others? A Study of the 1000 Largest US Firms Authors, the concept of business model remains seldom studied. This paper begins by defining a business model as what of business models (Creators, Distributors, Landlords and Brokers). Next, by considering the type of asset

113

SonnyAstani: Builder in LosAngeles for 25 years and the largest real estate  

E-Print Network [OSTI]

daily by civil and environmental engineers. Now, with the creation of the Sonny Astani Department of Civil and Environmental Engineering, we strengthen our resolve to make the world a better place to live Of Civil And Environmental Engineering. Endowed with the largest naming gift for a civil engineering

Southern California, University of

114

Largest-area Photonic Crystal LED Fabricated Demonstrates Uniform Light Emission  

Broader source: Energy.gov [DOE]

Lumileds Lighting, the University of New Mexico, and Sandia National Laboratories teamed to demonstrate uniform light emission from the largest-area III-Nitride photonic crystal LED (1 x 1 mm2) ever fabricated. Most previous photonic crystal LED research has relied on small-area patterns written by slow, serial-writing electron-beam lithography.

115

My year in the FX Research team at HSBC Researching the largest financial market  

E-Print Network [OSTI]

My year in the FX Research team at HSBC Researching the largest financial market Ievgeniia Korotkova 2013/2014 ­ Department of Economics HSBC FX Research team... HSBC's FX research is repeatedly out how `the business world works'. HSBC is a global company so you will get to work and have regular

Burton, Geoffrey R.

116

The Airy_1 process is not the limit of the largest eigenvalue in GOE matrix diffusion  

E-Print Network [OSTI]

Using a systematic approach to evaluate Fredholm determinants numerically, we provide convincing evidence that the Airy_1-process, arising as a limit law in stochastic surface growth, is not the limit law for the evolution of the largest eigenvalue in GOE matrix diffusion.

Folkmar Bornemann; Patrik L. Ferrari; Michael Prhofer

2008-06-20T23:59:59.000Z

117

Edgeworth Expansion of the Largest Eigenvalue Distribution Function of GUE Revisited  

E-Print Network [OSTI]

We derive expansions of the resolvent Rn(x;y;t)=(Qn(x;t)Pn(y;t)-Qn(y;t)Pn(x;t))/(x-y) of the Hermite kernel Kn at the edge of the spectrum of the finite n Gaussian Unitary Ensemble (GUEn) and the finite n expansion of Qn(x;t) and Pn(x;t). Using these large n expansions, we give another proof of the derivation of an Edgeworth type theorem for the largest eigenvalue distribution function of GUEn. We conclude with a brief discussion on the derivation of the probability distribution function of the corresponding largest eigenvalue in the Gaussian Orthogonal Ensemble (GOEn) and Gaussian Symplectic Ensembles (GSEn).

Leonard N. Choup

2007-11-27T23:59:59.000Z

118

Rapid Deposition Technology Holds the Key for the World's Largest Solar Manufacturer (Fact Sheet)  

SciTech Connect (OSTI)

Thanks in part to years of collaboration with the National Renewable Energy Laboratory (NREL), a manufacturer of thin-film solar modules has grown from a small garage-type operation to become the world's largest manufacturer of solar modules. First Solar, Inc. now manufactures cadmium telluride (CdTe) solar modules throughout the world, but it began in Ohio as a small company called Solar Cells, Inc.

Not Available

2010-10-01T23:59:59.000Z

119

Rapid Deposition Technology Holds the Key for the World's Largest Manufacturer of Thin-Film Solar Modules (Fact Sheet)  

SciTech Connect (OSTI)

First Solar, Inc. has been collaborating with NREL since 1991, advancing its thin-film cadmium telluride solar technology to grow from a startup company to become one of the world's largest manufacturers of solar modules, and the world's largest manufacturer of thin-film solar modules.

Not Available

2013-08-01T23:59:59.000Z

120

Edgeworth Expansion of the Largest Eigenvalue Distribution Function of GUE and LUE  

E-Print Network [OSTI]

We derive expansions of the Hermite and Laguerre kernels at the edge of the spectrum of the finite n Gaussian Unitary Ensemble (GUEn) and the finite n Laguerre Unitary Ensem- ble (LUEn), respectively. Using these large n kernel expansions, we prove an Edgeworth type theorem for the largest eigenvalue distribution function of GUEn and LUEn. In our Edgeworth expansion, the correction terms are expressed in terms of the same Painleve II function appearing in the leading term, i.e. in the Tracy-Widom distribution. We conclude with a brief discussion of the universality of these results.

Leonard N. Choup

2006-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Evaluating potential open source applications : a case study of the network attached storage industry  

E-Print Network [OSTI]

The open source model for software development has been established as a legitimate competitor to the largest closed source software firms in the world. The purpose of this thesis is to investigate the potential impact ...

Glynn, Martin (Martin Oliver)

2007-01-01T23:59:59.000Z

122

From Pushing Paper to Pushing Dirt - Canada's Largest LLRW Cleanup Gets Underway - 13111  

SciTech Connect (OSTI)

The Port Hope Project is the larger of the two projects in the Port Hope Area Initiative (PHAI), Canada's largest low level radioactive waste (LLRW) cleanup. With a budget of approximately $1 billion, the Port Hope Project includes a broad and complex range of remedial elements from a state of the art water treatment plant, an engineered waste management facility, municipal solid waste removal, remediation of 18 major sites within the Municipality of Port Hope (MPH), sediment dredging and dewatering, an investigation of 4,800 properties (many of these homes) to identify LLRW and remediation of approximately 450 of these properties. This paper discusses the status of the Port Hope Project in terms of designs completed and regulatory approvals received, and sets out the scope and schedule for the remaining studies, engineering designs and remediation contracts. (authors)

Veen, Walter van [Atomic Energy of Canada Limited, Port Hope, Ontario (Canada)] [Atomic Energy of Canada Limited, Port Hope, Ontario (Canada); Lawrence, Dave [Public Works and Government Services Canada, Port Hope, Ontario (Canada)] [Public Works and Government Services Canada, Port Hope, Ontario (Canada)

2013-07-01T23:59:59.000Z

123

Particle Acceleration in Astrophysical Sources  

E-Print Network [OSTI]

Astrophysical sources are extremely efficient accelerators. Some sources emit photons up to multi-TeV energies, a signature of the presence, within them, of particles with energies much higher than those achievable with the largest accelerators on Earth. Even more compelling evidence comes from the study of Cosmic Rays, charged relativistic particles that reach the Earth with incredibly high energies: at the highest energy end of their spectrum, these subatomic particles are carrying a macroscopic energy, up to a few Joules. Here I will address the best candidate sources and mechanisms as cosmic particle accelerators. I will mainly focus on Galactic sources such as Supernova Remnants and Pulsar Wind Nebulae, which being close and bright, are the best studied among astrophysical accelerators. These sources are held responsible for most of the energy that is put in relativistic particles in the Universe, but they are not thought to accelerate particles up to the highest individual energies, $\\approx 10^{20}$ eV...

Amato, Elena

2015-01-01T23:59:59.000Z

124

Finding the largest low-rank clusters with Ky Fan 2-k-norm and l1-norm  

E-Print Network [OSTI]

Mar 24, 2014 ... Abstract: We propose a convex optimization formulation with the Ky Fan 2-k-norm and l1-norm to fi nd k largest approximately rank-one...

Xuan Vinh Doan

2014-03-24T23:59:59.000Z

125

Finding the largest low-rank clusters with Ky Fan 2-k-norm and l1-norm  

E-Print Network [OSTI]

k largest approximately rank-one submatrix blocks of a given nonnegative matrix that has low-rank ... We analyze low-rank and sparsity structures of the optimal.

2014-03-21T23:59:59.000Z

126

Volume 130, Number 30 tech.mit.edu Wednesday, August 4, 2010 Oldest and Largest  

E-Print Network [OSTI]

televisions and propane tanks, in a dumpster reserved for single-stream recycling. According to Komola on security and theft prevention in a storage unit at nearby Metro- politan Storage Warehouse in May. Manning and carbon-copied to sev- eral MIT individuals and to Man- ning. The storage unit had no con- nection

Ishii, Hiroshi

127

Volume 130, Number 58 tech.mit.edu Friday, December 3, 2010 Oldest and Largest  

E-Print Network [OSTI]

A free bike clinic will be held tomor- rowattheStudentCenterfrom11a.m. to 3 p.m. An MIT ID is required compiles several re- sources, such as the MIT Graphic Identity site, MIT Facts, MIT Li- braries, and even

Ishii, Hiroshi

128

Abstract--Petascale simulations are needed to understand the rupture and wave dynamics of the largest earthquakes at  

E-Print Network [OSTI]

, K.B. Olsen 2 , T. H. Jordan 3 , K. Lee 1 , J. Zhou 1 , P. Small 3 , D. Roten 2 , G. Ely 3 , D science and engineering--the physics-based modeling of the largest seismic hazards with the goal) required to understand seismic risk. SCEC's scientific goal is to apply this new tool in system

Panda, Dhabaleswar K.

129

Vibrant. Diverse. Innovative. Attending college in the country's fourth-largest city means that Rice students tap  

E-Print Network [OSTI]

. A vibrant city known for its energy, can-do spirit and international presence, Houston ranks high when of Houston Mayor's Office ExxonMobil HobbyCenterforthePerformingArts Horizon Wind Energy HoustonHouston Vibrant. Diverse. Innovative. #12;Attending college in the country's fourth-largest city

Richards-Kortum, Rebecca

130

GHPGHPGHPGHPGHPsPayforThemselvessPayforThemselvessPayforThemselvessPayforThemselvessPayforThemselves The world's largest installation of geothermal heat  

E-Print Network [OSTI]

federal agency facilities nation- wide for procuring GHP-centered energy-effi- ciency projects. The ESCOs measures: · EnergySavings · The energy retrofit reduced overall electrical consumption in Fort Polk familyThemselvessPayforThemselvessPayforThemselvessPayforThemselvessPayforThemselves The world's largest installation of geothermal heat pumps has proven that this technology can deliver big

Oak Ridge National Laboratory

131

Power sources manufactures association : power technology roadmap workshop - 2006.  

SciTech Connect (OSTI)

The Power Sources Manufacturers Association (PSMA) is pleased to announce the release of the latest Power Technology Roadmap Workshop Report. This Fifth Edition Workshop Report includes presentations and discussions from the workshop as seen by the participants that included many of the industry's most influential members representing end-users, power supply manufacturers, component suppliers, consultants and academia. This report provides detailed projections for the next three to four years of various technologies in a quantitative form. There was special emphasis on how the increasing use of digital technologies will affect the industry in the next four years. The technology trend analysis and the roadmap is provided for the following specific product families expected to be the areas of largest market growth: (1) Ac-dc front end power supplies--1 kW from a single phase ac source; (2) External ac-dc power supplies; (3) Dc-dc bus converters; and (4) Non-isolated dc-dc converters. Bruce Miller, Chairman of PSMA, stated that 'the Power Technology Roadmap Workshop Report is an extensive document that analyzes and provides projections for most major technical parameters for a specific power supply. It is a unique document as it contains technology/parametric trends in a roadmap fashion from a variety of diverse sources, giving significant depth to its content. No such information is available from any other source'. The Power Technology Roadmap Workshop Report is available at no cost as to PSMA Regular and Associate members and at a reduced price to Affiliate members as a benefit of membership. The report will be offered to non-members at a price of $2490. For further information or to buy a copy of the report, please visit the publications page or the PSMA website or contact the Association Office.

Bowers, John S.

2006-03-01T23:59:59.000Z

132

Heralded single photon absorption by a single atom  

E-Print Network [OSTI]

The emission and absorption of single photons by single atomic particles is a fundamental limit of matter-light interaction, manifesting its quantum mechanical nature. At the same time, as a controlled process it is a key enabling tool for quantum technologies, such as quantum optical information technology [1, 2] and quantum metrology [3, 4, 5, 6]. Controlling both emission and absorption will allow implementing quantum networking scenarios [1, 7, 8, 9], where photonic communication of quantum information is interfaced with its local processing in atoms. In studies of single-photon emission, recent progress includes control of the shape, bandwidth, frequency, and polarization of single-photon sources [10, 11, 12, 13, 14, 15, 16, 17], and the demonstration of atom-photon entanglement [18, 19, 20]. Controlled absorption of a single photon by a single atom is much less investigated; proposals exist but only very preliminary steps have been taken experimentally such as detecting the attenuation and phase shift of a weak laser beam by a single atom [21, 22], and designing an optical system that covers a large fraction of the full solid angle [23, 24, 25]. Here we report the interaction of single heralded photons with a single trapped atom. We find strong correlations of the detection of a heralding photon with a change in the quantum state of the atom marking absorption of the quantum-correlated heralded photon. In coupling a single absorber with a quantum light source, our experiment demonstrates previously unexplored matter-light interaction, while opening up new avenues towards photon-atom entanglement conversion in quantum technology.

Nicolas Piro; Felix Rohde; Carsten Schuck; Marc Almendros; Jan Huwer; Joyee Ghosh; Albrecht Haase; Markus Hennrich; Francois Dubin; Jrgen Eschner

2010-04-23T23:59:59.000Z

133

Four Star Greenhouse has been producing high quality garden products since 1977 and is the largest partner/supplier of the nationally recognized #1 plant brand Proven Winners.  

E-Print Network [OSTI]

1977 and is the largest partner/supplier of the nationally recognized #1 plant. Ships plants as necessary. QUALIFICATIONS: 1. 2 or 4 yr Horticultural degree or 3

134

Preparing a public database of radio sources  

E-Print Network [OSTI]

We have collected the largest existing set of radio source lists in machine-readable form: 320 tables with 1.75 million records. Only a minor fraction of these is accessible via public databases. We describe our plans to make this huge amount of heterogeneous data accessible in a homogeneous way via the World Wide Web, with reliable cross-identifications, and searchable by various observables.

H. Andernach; S. A. Trushkin; A. G. Gubanov; O. V. Verkhodanov; V. B. Titov; A. Micol

1996-07-22T23:59:59.000Z

135

Saturn's Moons Saturn's Largest  

E-Print Network [OSTI]

· "Stones" ­ 10-15 cm ­ Made of water ice · Possible dry lake bed? #12;· Left: VIMS · Center: Narrow angle;Iapetus · Planet-ringing scarp ­ 13 km high ­ 20 km wide ­ Runs along equator · Mountain belt? · Rift

Herrick, Robert R.

136

INEEL Source Water Assessment  

SciTech Connect (OSTI)

The Idaho National Engineering and Environmental Laboratory (INEEL) covers approximately 890 mi2 and includes 12 public water systems that must be evaluated for Source water protection purposes under the Safe Drinking Water Act. Because of its size and location, six watersheds and five aquifers could potentially affect the INEELs drinking water sources. Based on a preliminary evaluation of the available information, it was determined that the Big Lost River, Birch Creek, and Little Lost River Watersheds and the eastern Snake River Plain Aquifer needed to be assessed. These watersheds were delineated using the United States Geologic Surveys Hydrological Unit scheme. Well capture zones were originally estimated using the RESSQC module of the Environmental Protection Agencys Well Head Protection Area model, and the initial modeling assumptions and results were checked by running several scenarios using Modflow modeling. After a technical review, the resulting capture zones were expanded to account for the uncertainties associated with changing groundwater flow directions, a thick vadose zone, and other data uncertainties. Finally, all well capture zones at a given facility were merged to a single wellhead protection area at each facility. A contaminant source inventory was conducted, and the results were integrated with the well capture zones, watershed and aquifer information, and facility information using geographic information system technology to complete the INEELs Source Water Assessment. Of the INEELs 12 public water systems, three systems rated as low susceptibility (EBR-I, Main Gate, and Gun Range), and the remainder rated as moderate susceptibility. No INEEL public water system rated as high susceptibility. We are using this information to develop a source water management plan from which we will subsequently implement an INEEL-wide source water management program. The results are a very robust set of wellhead protection areas that will protect the INEELs public water systems yet not too conservative to inhibit the INEEL from carrying out its missions.

Sehlke, Gerald

2003-03-01T23:59:59.000Z

137

Focused X-ray source  

DOE Patents [OSTI]

Disclosed is an intense, relatively inexpensive X-ray source (as compared to a synchrotron emitter) for technological, scientific, and spectroscopic purposes. A conical radiation pattern produced by a single foil or stack of foils is focused by optics to increase the intensity of the radiation at a distance from the conical radiator. 8 figs.

Piestrup, M.A.; Boyers, D.G.; Pincus, C.I.; Maccagno, P.

1990-08-21T23:59:59.000Z

138

Designing subwavelength-structured light sources  

E-Print Network [OSTI]

The laser has long been established as the best possible optical source for fundamental studies and applications requiring high field intensity, single mode operation, a high degree of coherence, a narrow linewidth and ...

Chua, Song Liang

2013-01-01T23:59:59.000Z

139

FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: SOURCE CATALOG  

SciTech Connect (OSTI)

We present the list of point sources found in the Wilkinson Microwave Anisotropy Probe (WMAP) five-year maps. The technique used in the first-year and three-year analyses now finds 390 point sources, and the five-year source catalog is complete for regions of the sky away from the Galactic plane to a 2 Jy limit, with SNR >4.7 in all bands in the least covered parts of the sky. The noise at high frequencies is still mainly radiometer noise, but at low frequencies the cosmic microwave background (CMB) anisotropy is the largest uncertainty. A separate search of CMB-free V-W maps finds 99 sources of which all but one can be identified with known radio sources. The sources seen by WMAP are not strongly polarized. Many of the WMAP sources show significant variability from year to year, with more than a 2:1 range between the minimum and maximum fluxes.

Wright, E. L.; Chen, X. [UCLA Physics and Astronomy, P.O. Box 951547, Los Angeles, CA 90095-1547 (United States); Odegard, N.; Hill, R. S.; Weiland, J. L. [Adnet Systems, Inc., 7515 Mission Dr., Suite A100, Lanham, MD 20706 (United States); Bennett, C. L.; Gold, B.; Larson, D. [Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218-2686 (United States); Hinshaw, G.; Wollack, E.; Kogut, A. [Code 665, NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Jarosik, N.; Page, L.; Dunkley, J. [Department of Physics, Jadwin Hall, Princeton University, Princeton, NJ 08544-0708 (United States); Komatsu, E. [Department of Astronomy, University of Texas, Austin, 2511 Speedway, RLM 15.306, Austin, TX 78712 (United States); Nolta, M. R. [Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George St., Toronto, ON M5S 3H8 (Canada); Spergel, D. N. [Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, NJ 08544-1001 (United States); Halpern, M. [Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada); Limon, M. [Columbia Astrophysics Laboratory, 550 W. 120th St., Mail Code 5247, New York, NY 10027-6902 (United States); Meyer, S. S. [Departments of Astrophysics and Physics, KICP and EFI, University of Chicago, Chicago, IL 60637 (United States)], E-mail: wright@astro.ucla.edu (and others)

2009-02-15T23:59:59.000Z

140

Radiation source  

DOE Patents [OSTI]

A device and method for relativistic electron beam heating of a high-density plasma in a small localized region. A relativistic electron beam generator or accelerator produces a high-voltage electron beam which propagates along a vacuum drift tube and is modulated to initiate electron bunching within the beam. The beam is then directed through a low-density gas chamber which provides isolation between the vacuum modulator and the relativistic electron beam target. The relativistic beam is then applied to a high-density target plasma which typically comprises DT, DD, or similar thermonuclear gas at a density of 10.sup.17 to 10.sup.20 electrons per cubic centimeter. The target gas is ionized prior to application of the relativistic electron beam by means of a laser or other preionization source to form a plasma. Utilizing a relativistic electron beam with an individual particle energy exceeding 3 MeV, classical scattering by relativistic electrons passing through isolation foils is negligible. As a result, relativistic streaming instabilities are initiated within the high-density target plasma causing the relativistic electron beam to efficiently deposit its energy into a small localized region of the high-density plasma target.

Thode, Lester E. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

SOURCE PHENOMENOLOGY EXPERIMENTS IN ARIZONA  

SciTech Connect (OSTI)

The Arizona Source Phenomenology Experiments (SPE) have resulted in an important dataset for the nuclear monitoring community. The 19 dedicated single-fired explosions and multiple delay-fired mining explosions were recorded by one of the most densely instrumented accelerometer and seismometer arrays ever fielded, and the data have already proven useful in quantifying confinement and excitation effects for the sources. It is very interesting to note that we have observed differences in the phenomenology of these two series of explosions resulting from the differences between the relatively slow (limestone) and fast (granodiorite) media. We observed differences at the two SPE sites in the way the rock failed during the explosions, how the S-waves were generated, and the amplitude behavior as a function of confinement. Our consortium's goal is to use the synergy of the multiple datasets collected during this experiment to unravel the phenomenological differences between the two emplacement media. The data suggest that the main difference between single-fired chemical and delay-fired mining explosion seismograms at regional distances is the increased surface wave energy for the latter source type. The effect of the delay-firing is to decrease the high-frequency P-wave amplitudes while increasing the surface wave energy because of the longer source duration and spall components. The results suggest that the single-fired explosions are surrogates for nuclear explosions in higher frequency bands (e.g., 6-8 Hz Pg/Lg discriminants). We have shown that the SPE shots, together with the mining explosions, are efficient sources of S-wave energy, and our next research stage is to postulate the possible sources contributing to the shear-wave energy.

Jessie L. Bonner; Brian Stump; Mark Leidig; Heather Hooper; Xiaoning (David) Yang; Rongmao Zhou; Tae Sung Kim; William R. Walter; Aaron Velasco; Chris Hayward; Diane Baker; C. L. Edwards; Steven Harder; Travis Glenn; Cleat Zeiler; James Britton; James F. Lewkowicz

2005-09-30T23:59:59.000Z

142

Thulium-170 heat source  

DOE Patents [OSTI]

An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.

Walter, Carl E. (Pleasanton, CA); Van Konynenburg, Richard (Livermore, CA); VanSant, James H. (Tracy, CA)

1992-01-01T23:59:59.000Z

143

Multilevel cascade voltage source inverter with seperate DC sources  

DOE Patents [OSTI]

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

Peng, Fang Zheng (Oak Ridge, TN); Lai, Jih-Sheng (Knoxville, TN)

1997-01-01T23:59:59.000Z

144

Multilevel cascade voltage source inverter with separate DC sources  

DOE Patents [OSTI]

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.

Peng, F.Z.; Lai, J.S.

1997-06-24T23:59:59.000Z

145

Multilevel cascade voltage source inverter with seperate DC sources  

DOE Patents [OSTI]

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

Peng, Fang Zheng (Knoxville, TN); Lai, Jih-Sheng (Blacksburg, VA)

2002-01-01T23:59:59.000Z

146

Profit Centers, Single-Source Suppliers and Transaction Costs  

E-Print Network [OSTI]

This paper addresses criticisms of transaction-cost theory that it overstates the effect of asset specialization on vertical integration and understates the costs of managing interunit relationships within an organization, ...

Walker, Gordon; Poppo, Laura

1991-03-01T23:59:59.000Z

147

Single Atom Electron and Ion Sources and Their Applications  

E-Print Network [OSTI]

- energy electron point projection microscope, PPM) (37, 38) 1. (shadow microscopy) (shadow image-walled carbon nanotubes, SWNTs) (111) (pizeo-scanner) X- Y-Z (scanning tunneling microscope) 3. (a on the screen (mm) Intensity(Arb.Units) (c) (a) (b) Q FWHM P (a) (b)Dd sample holder detector-MCP #12;13 98

148

Service Engineering Emphasis Area The service sector is the largest growth area of the US economy. To help with this growth,  

E-Print Network [OSTI]

Service Engineering Emphasis Area The service sector is the largest growth area of the US economy and Engineering Management EIND 477 ­ Quality Assurance TABLE 1: COURSE LISTING FOR SERVICE ENGINEERING EMPHASIS. To help with this growth, engineering problem-solving, techniques, and tools can have a significant impact

Dyer, Bill

149

(Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China,  

E-Print Network [OSTI]

100 LITHIUM (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China, Russia, and the United States were large producers also. Australia, Canada, and Zimbabwe were major producers of lithium

150

(Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China,  

E-Print Network [OSTI]

98 LITHIUM (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China, Russia, and the United States were large producers also. Australia, Canada, and Zimbabwe were major producers of lithium

151

(Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China,  

E-Print Network [OSTI]

96 LITHIUM (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China, Russia, and the United States were large producers also. Australia, Canada, and Zimbabwe were major producers of lithium

152

Pacific Equatorial Age Transect (PEAT): Summary As the largest ocean, the Pacific is intricately linked to major changes in the global  

E-Print Network [OSTI]

Pacific Equatorial Age Transect (PEAT): Summary As the largest ocean, the Pacific is intricately the Cenozoic the Pacific plate has had a northward component. Thus, the Pacific is unique, in that the thick to drill an age transect ("flow-line") following the position of the paleo- equator in the Pacific

153

"In terms of the long-term outlook for biomass and biofuels, the largest proportion of Business Insights industry survey respondents  

E-Print Network [OSTI]

"In terms of the long-term outlook for biomass and biofuels, the largest proportion of Business Insights industry survey respondents (47%) thought that biofuels would account for 5-10% of total global fuel production by 2017. A further 25% of respondents thought that biofuels would account for 2

154

Hamburg, Germany's second largest city, is home to two of the most important urban development areas in Europe: HafenCity  

E-Print Network [OSTI]

Hamburg, Germany's second largest city, is home to two of the most important urban development for ecological sustainability and mixed use development along the Elbe River in Hamburg, Germany e m b e r 1 5 , 9 a m ­ 1 2 : 30 p m The City of Hamburg, Germany is a city-state. Like Washington

District of Columbia, University of the

155

Ranked in the top 50 MFA programs in the nation by Poets & Writers, the nation's largest nonprofit organization for creative writers  

E-Print Network [OSTI]

Ranked in the top 50 MFA programs in the nation by Poets & Writers, the nation's largest, starred reviews in Publishers Weekly and been named Notable Books by the Academy of American Poets's leading poets, with chapbooks that are available free of charge and without copyright #12;

Barrash, Warren

156

Idaho is the nation's largest producer, packer, and processor of potatoes. Idaho has been the number one potato-producing state for the past 50 years. The  

E-Print Network [OSTI]

HIGHLIGHTS Idaho is the nation's largest producer, packer, and processor of potatoes. Idaho has been the number one potato-producing state for the past 50 years. The state's growers produce about 30% of the U.S. potato crop, but the Idaho potato industry is more than potato fields. Idaho frozen

O'Laughlin, Jay

157

IMPACTS ON U.S. ECONOMY NIH is the largest funder of biomedical research in the world, including the research of 135  

E-Print Network [OSTI]

ON U.S. ECONOMY NIH is the largest funder of biomedical research in the world, including the research patents worldwide to NIH's intellectual property portfolio. 1 NIH's Role in Sustaining The U.S. Economy://www.unitedformedicalresearch.com/wp-content/uploads/2012/03/NIHs-Role-in- Sustaining-the-US-Economy-2011.pdf 2 An Economic Engine: NIH Research

Bandettini, Peter A.

158

mathematics single cycle  

E-Print Network [OSTI]

47 mathematics education single cycle master's study programme #12;48 single cycle master's study program in Mathematics Education #12;49 single cycle master's study program in Mathematics Education MATHEMATICS EDUCATION The program is in tune with the principles of the Bologna Declaration. · Academic title

?umer, Slobodan

159

Better Randomness with Single Photons  

E-Print Network [OSTI]

Randomness is one of the most important resources in modern information science, since encryption founds upon the trust in random numbers. Since it is impossible to prove if an existing random bit string is truly random, it is relevant that they be generated in a trust worthy process. This requires specialized hardware for random numbers, for example a die or a tossed coin. But when all input parameters are known, their outcome might still be predicted. A quantum mechanical superposition allows for provably true random bit generation. In the past decade many quantum random number generators (QRNGs) were realized. A photonic implementation is described as a photon which impinges on a beam splitter, but such a protocol is rarely realized with non-classical light or anti-bunched single photons. Instead, laser sources or light emitting diodes are used. Here we analyze the difference in generating a true random bit string with a laser and with anti-bunched light. We show that a single photon source provides more r...

Oberreiter, Lukas

2014-01-01T23:59:59.000Z

160

Seismic Signal Processing for Single Well Imaging Applications  

E-Print Network [OSTI]

This thesis focuses on the concept of Single Well Imaging (SWI) in which a seismic source and receivers are deployed in a borehole to investigate the surrounding geology. The Uniwell project (1997-1999) was the first ...

Walsh, Brendan

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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.


161

Kinetic Theory Estimates for the Kolmogorov-Sinai Entropy and the Largest Lyapunov Exponents for Dilute, Hard-Ball Gases and for Dilute, Random Lorentz Gases  

E-Print Network [OSTI]

The kinetic theory of gases provides methods for calculating Lyapunov exponents and other quantities, such as Kolmogorov-Sinai entropies, that characterize the chaotic behavior of hard-ball gases. Here we illustrate the use of these methods for calculating the Kolmogorov-Sinai entropy, and the largest positive Lyapunov exponent, for dilute hard-ball gases in equilibrium. The calculation of the largest Lyapunov exponent makes interesting connections with the theory of propagation of hydrodynamic fronts. Calculations are also presented for the Lyapunov spectrum of dilute, random Lorentz gases in two and three dimensions, which are considerably simpler than the corresponding calculations for hard-ball gases. The article concludes with a brief discussion of some interesting open problems.

H. van Beijeren; R. van Zon; J. R. Dorfman

2000-03-06T23:59:59.000Z

162

A global inventory of ecosystem sources of methyl bromide, an ozone destroying gas  

E-Print Network [OSTI]

and anthropogenically produced. Biomass burning, salt marsh and agriculture are reported as the largest natural sources. However, there exists a need for a global inventory as current budget estimates are uncertain, based on limited data and show a 45Gg yr-1 discrepancy...

Fenney, Gareth

2008-12-11T23:59:59.000Z

163

Electrolytes for power sources  

DOE Patents [OSTI]

Electrolytes are disclosed for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids. 7 figures.

Doddapaneni, N.; Ingersoll, D.

1995-01-03T23:59:59.000Z

164

Protected Water Sources (Iowa)  

Broader source: Energy.gov [DOE]

This chapter designates protected water sources, which are subject to additional special conditions regarding water use. Permit applications for water withdrawals from these sources may still be...

165

Counterintuitive temporal shape of single photons  

E-Print Network [OSTI]

We prepare heralded single photons from a photon pair source based on non-degenerate four-wave mixing in a cold atomic ensemble via a cascade decay scheme. Their statistics shows strong antibunching with g(2)(0) < 0.03, indicating a near single photon character. In an optical homodyne experiment, we directly measure the temporal envelope of these photons and find, depending on the heralding scheme, an exponentially decaying or rising profile. The rising envelope will be useful for efficient interaction between single photons and microscopic systems like single atoms and molecules. At the same time, their observation illustrates the breakdown of a realistic interpretation of the heralding process in terms of defining an initial condition of a physical system.

Gurpreet Kaur Gulati; Bharath Srivathsan; Brenda Chng; Alessandro Cer; Dzmitry Matsukevich; Christian Kurtsiefer

2014-02-24T23:59:59.000Z

166

E-Print Network 3.0 - acid single crystals Sample Search Results  

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

of Chemistry single crystal X-ray diffraction. Consequently, the crystal structure... and methanol, followed by slow evaporation at room temperature ... Source: de Gispert, Adri...

167

Source Coding with Mismatched Distortion Measures  

E-Print Network [OSTI]

We consider the problem of lossy source coding with a mismatched distortion measure. That is, we investigate what distortion guarantees can be made with respect to distortion measure $\\tilde{\\rho}$, for a source code designed such that it achieves distortion less than $D$ with respect to distortion measure $\\rho$. We find a single-letter characterization of this mismatch distortion and study properties of this quantity. These results give insight into the robustness of lossy source coding with respect to modeling errors in the distortion measure. They also provide guidelines on how to choose a good tractable approximation of an intractable distortion measure.

Niesen, Urs; Wornell, Gregory

2008-01-01T23:59:59.000Z

168

GEOMETRIC SOURCE SEPARATION: MERGING CONVOLUTIVE SOURCE  

E-Print Network [OSTI]

adaptive beamforming algorithms by a cross-power criteria, we gain new geometric source separation with convo- lutive blind source separation. We concentrate on cross-power spectral min- imization which is su to ambiguities in the choice of separating lters. There are in theory multiple lters that invert the room

Parra, Lucas C.

169

Ultrabright Backward-wave Biphoton Source  

E-Print Network [OSTI]

We calculate the properties of a biphoton source based on resonant backward-wave spontaneous parametric down-conversion. We show that the biphotons are generated in a single longitudinal mode having a subnatural linewidth and a Glauber correlation time exceeding 65 ns.

Chih-Sung Chuu; S. E. Harris

2011-05-01T23:59:59.000Z

170

Single photon absorption by a single atom: from heralded absorption to polarization state mapping  

E-Print Network [OSTI]

Together with photon emission, the absorption of a single photon by a single atom is a fundamental process in matter-light interaction that manifests its quantum mechanical nature. As an experimentally controlled process, it is a key tool for the realization of quantum technologies. In particular, in an atom/photon based quantum network scenario, in which localized atomic particles are used as quantum information processing nodes while photons are used as carriers of quantum information between distant nodes, controlling both emission and absorption of single photons by single atoms is required for quantum coherent state mapping between the two entities. Most experimental efforts to date have focused on establishing the control of single photon emission by single trapped atoms, and the implementation of quantum networking protocols using this interaction. In this chapter, we describe experimental efforts to control the process of single photon absorption by single trapped ions. We describe a series of experiments in which polarization entangled photon pairs, generated by a spontaneous parametric down-conversion source, are coupled to a single ion. First the source is operated to generate heralded single photons, and coincidences between the absorption event of one photon of the pair and the detection of the heralding partner photon are observed. We then show how polarization control in the process is established, leading to the manifestation of the photonic polarization entanglement in the absorption process. Finally, we introduce protocols in which this interaction scheme is harnessed to perform tasks in a quantum network, such as entanglement distribution among distant nodes of the network, and we demonstrate a specific protocol for heralded, high-fidelity photon-to-atom quantum state transfer.

Nicolas Piro; Jrgen Eschner

2015-02-19T23:59:59.000Z

171

Peat as an alternaive energy source  

SciTech Connect (OSTI)

Peat remains a virtually unexploited energy source in the US in spite of large resources and a long history of use as a fuel in other countries. Areas that lack other fossil fuels are often the site of large peat lands. US resources are estimated at 1443 quadrillion Btus, with over half located in Alaska outside the permanent frostline. The Soviet Union, with over four times the US resource, is the largest commercial user. Harvesting techniques include dry and wet methods that utilize both thermal and mechanical dewatering. Peat is well suited for gasification by several processes, including the PEAT GAS process now being tested. Harvested peatlands can be made into productive farm and forest land if proper techniques are used to preserve water and air quality. (DCK)

Punwani, D.V.; Mensinger, M.C.

1981-01-05T23:59:59.000Z

172

Suitability versus fidelity for rating single-photon guns  

E-Print Network [OSTI]

The creation of specified quantum states is important for most, if not all, applications in quantum computation and communication. The quality of the state preparation is therefore an essential ingredient in any assessment of a quantum-state gun. We show that the fidelity, under the standard definitions is not sufficient to assess quantum sources, and we propose a new measure of suitability that necessarily depends on the application for the source. We consider the performance of single-photon guns in the context of quantum key distribution (QKD) and linear optical quantum computation. Single-photon sources for QKD need radically different properties than sources for quantum computing. Furthermore, the suitability for single-photon guns is discussed explicitly in terms of experimentally accessible criteria.

George M. Hockney; Pieter Kok; Jonathan P. Dowling

2003-04-01T23:59:59.000Z

173

Single Top Quark  

SciTech Connect (OSTI)

Fermilab researchers Heidi Schellman and Ann Heinson take a whimsical look at the recent announcement of the discovery of the single top quark, by Fermilab's CDF and DZero experiments.

Heidi Schellman and Ann Heinson

2009-03-12T23:59:59.000Z

174

Lightning Dock KGRA, New Mexico's Largest Geothermal Greenhouse, Largest  

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 CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(Monaster And Coolbaugh, 2007) JumpDesign Jump to:Aquaculture Facility,

175

DC source assemblies  

DOE Patents [OSTI]

Embodiments of DC source assemblies of power inverter systems of the type suitable for deployment in a vehicle having an electrically grounded chassis are provided. An embodiment of a DC source assembly comprises a housing, a DC source disposed within the housing, a first terminal, and a second terminal. The DC source also comprises a first capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the first terminal. The DC source assembly further comprises a second capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the second terminal.

Campbell, Jeremy B; Newson, Steve

2013-02-26T23:59:59.000Z

176

Tapered fiber coupling of single photons emitted by a deterministically positioned single nitrogen vacancy center  

SciTech Connect (OSTI)

A diamond nano-crystal hosting a single nitrogen vacancy (NV) center is optically selected with a confocal scanning microscope and positioned deterministically onto the subwavelength-diameter waist of a tapered optical fiber (TOF) with the help of an atomic force microscope. Based on this nano-manipulation technique, we experimentally demonstrate the evanescent coupling of single fluorescence photons emitted by a single NV-center to the guided mode of the TOF. By comparing photon count rates of the fiber-guided and the free-space modes and with the help of numerical finite-difference time domain simulations, we determine a lower and upper bound for the coupling efficiency of (9.5??0.6)% and (10.4??0.7)%, respectively. Our results are a promising starting point for future integration of single photon sources into photonic quantum networks and applications in quantum information science.

Liebermeister, Lars, E-mail: lars.liebermeister@physik.uni-muenchen.de; Petersen, Fabian; Mnchow, Asmus v.; Burchardt, Daniel; Hermelbracht, Juliane; Tashima, Toshiyuki [Fakultt fr Physik, Ludwig-Maximilians-Universitt Mnchen, 80799 Mnchen (Germany); Schell, Andreas W.; Benson, Oliver [Institut fr Physik, Humboldt-Universitt zu Berlin, 12489 Berlin (Germany); Meinhardt, Thomas; Krueger, Anke [Institut fr Organische Chemie, Universitt Wrzburg, 97074 Wrzburg (Germany); Wilhelm Conrad Roentgen Research Center for Complex Materials Systems, Universitt Wrzburg, 97074 Wrzburg (Germany); Stiebeiner, Ariane; Rauschenbeutel, Arno [Atominstitut, Technische Universitt Wien, 1020 Wien (Austria); Weinfurter, Harald; Weber, Markus, E-mail: markusweber@lmu.de [Fakultt fr Physik, Ludwig-Maximilians-Universitt Mnchen, 80799 Mnchen (Germany); Max-Planck-Institut fr Quantenoptik, 85748 Garching (Germany)

2014-01-20T23:59:59.000Z

177

Laser ion source with solenoid field  

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

Pulse length extension of highly charged ion beam generated from a laser ion source is experimentally demonstrated. The laser ion source (LIS) has been recognized as one of the most powerful heavy ion source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting section, a pulse length of carbon ion beam reached 3.2 ?s which was 4.4 times longer than the width from a conventional LIS. The particle number of carbon ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 1011, which was provided by a single 1 J Nd-YAG laser shot. A laser ion source with solenoid field could be used in a next generation heavy ion accelerator.

Kanesue, Takeshi [Brookhaven National Laboratory (BNL), Upton, NY (United States); Fuwa, Yasuhiro [Kyoto Univ., Kyoto (Japan); RIKEN (Japan); Kondo, Kotaro [Tokyo Institute of Technology, Tokyo (Japan); Okamura, Masahiro [Brookhaven National Laboratory (BNL), Upton, NY (United States)

2014-11-10T23:59:59.000Z

178

Single particle microscopy with nanometer resolution  

E-Print Network [OSTI]

We experimentally demonstrate nanoscopic transmission microscopy relying on a deterministic single particle source. This increases the signal-to-noise ratio with respect to conventional microscopy methods, which employ Poissonian particle sources. We use laser-cooled ions extracted from a Paul trap, and demonstrate remote imaging of transmissive objects with a resolution of 8.6 $\\pm$ 2.0nm and a minimum two-sample deviation of the beam position of 1.5nm. Detector dark counts can be suppressed by 6 orders of magnitudes through gating by the extraction event. The deterministic nature of our source enables an information-gain driven approach to imaging. We demonstrate this by performing efficient beam characterization based on a Bayes experiment design method.

Georg Jacob; Karin Groot-Berning; Sebastian Wolf; Stefan Ulm; Luc Couturier; Ulrich G. Poschinger; Ferdinand Schmidt-Kaler; Kilian Singer

2014-05-26T23:59:59.000Z

179

Unidentified Gamma-Ray Sources: Hunting Gamma-Ray Blazars  

SciTech Connect (OSTI)

One of the main scientific objectives of the ongoing Fermi mission is unveiling the nature of the unidentified {gamma}-ray sources (UGSs). Despite the large improvements of Fermi in the localization of {gamma}-ray sources with respect to the past {gamma}-ray missions, about one third of the Fermi-detected objects are still not associated to low energy counterparts. Recently, using the Wide-field Infrared Survey Explorer (WISE) survey, we discovered that blazars, the rarest class of Active Galactic Nuclei and the largest population of {gamma}-ray sources, can be recognized and separated from other extragalactic sources on the basis of their infrared (IR) colors. Based on this result, we designed an association method for the {gamma}-ray sources to recognize if there is a blazar candidate within the positional uncertainty region of a generic {gamma}-ray source. With this new IR diagnostic tool, we searched for {gamma}-ray blazar candidates associated to the UGS sample of the second Fermi {gamma}-ray catalog (2FGL). We found that our method associates at least one {gamma}-ray blazar candidate as a counterpart each of 156 out of 313 UGSs analyzed. These new low-energy candidates have the same IR properties as the blazars associated to {gamma}-ray sources in the 2FGL catalog.

Massaro, F.; D'Abrusco, R.; Tosti, G.; Ajello, M.; Gasparrini, A.Paggi.D.

2012-04-02T23:59:59.000Z

180

Where are the binary source galactic microlensing events?  

E-Print Network [OSTI]

Though there have been some galactic microlensing events which show a clear signature of a binary lens, no event has yet been claimed as due to lensing of a binary source. Here I argue that this may be due to the fact that most of the binary source events show light curves which can be fitted with the simpler model of a blended single source.

M. Dominik

1998-01-13T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Successful Completion of the Largest Shipment of Russian Research Reactor High-Enriched Uranium Spent Nuclear Fuel from Czech Republic to Russian Federation  

SciTech Connect (OSTI)

On December 8, 2007, the largest shipment of high-enriched uranium spent nuclear fuel was successfully made from a Russian-designed nuclear research reactor in the Czech Republic to the Russian Federation. This accomplishment is the culmination of years of planning, negotiations, and hard work. The United States, Russian Federation, and the International Atomic Energy Agency have been working together on the Russian Research Reactor Fuel Return (RRRFR) Program in support of the Global Threat Reduction Initiative. In February 2003, RRRFR Program representatives met with the Nuclear Research Institute in Re, Czech Republic, and discussed the return of their high-enriched uranium spent nuclear fuel to the Russian Federation for reprocessing. Nearly 5 years later, the shipment was made. This paper discusses the planning, preparations, coordination, and cooperation required to make this important international shipment.

Michael Tyacke; Dr. Igor Bolshinsky; Jeff Chamberlin

2008-07-01T23:59:59.000Z

182

Single Particle Laser Ablation | EMSL  

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

Single Particle Laser Ablation Single Particle Laser Ablation Leads No leads are available at this time. Effect of Solar Radiation on the Optical Properties and Molecular...

183

Single-exciton nanocrystal laser  

DOE Patents [OSTI]

A laser system employing amplification via a single exciton regime and to optical gain media having single exciton amplification is provided.

Klimov, Victor I. (Los Alamos, NM); Ivanov, Sergei A. (Albuquerque, NM)

2012-01-17T23:59:59.000Z

184

Nonlinear interaction between two heralded single photons  

E-Print Network [OSTI]

Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced applications in quantum information science. Currently, all known approaches are extremely challenging although a few have led to experimental realisations with attenuated classical laser light. This has included cross-phase modulation with weak classical light in atomic ensembles and optical fibres, converting incident laser light into a non-classical stream of photon or Rydberg blockades as well as all-optical switches with attenuated classical light in various atomic systems. Here we report the observation of a nonlinear parametric interaction between two true single photons. Single photons are initially generated by heralding one photon from each of two independent spontaneous parametric downconversion sources. The two heralded single photons are subsequently combined in a nonlinear waveguide where they are converted into a single photon with a higher energy. Our approach highlights the potential for quantum nonlinear optics with integrated devices, and as the photons are at telecom wavelengths, it is well adapted to applications in quantum communication.

T. Guerreiro; A. Martin; B. Sanguinetti; J. S. Pelc; C. Langrock; M. M. Fejer; N. Gisin; H. Zbinden; N. Sangouard; R. T. Thew

2014-03-09T23:59:59.000Z

185

Dynamic radioactive particle source  

DOE Patents [OSTI]

A method and apparatus for providing a timed, synchronized dynamic alpha or beta particle source for testing the response of continuous air monitors (CAMs) for airborne alpha or beta emitters is provided. The method includes providing a radioactive source; placing the radioactive source inside the detection volume of a CAM; and introducing an alpha or beta-emitting isotope while the CAM is in a normal functioning mode.

Moore, Murray E.; Gauss, Adam Benjamin; Justus, Alan Lawrence

2012-06-26T23:59:59.000Z

186

SOURCE SELECTION INFORMATION -  

Office of Environmental Management (EM)

on Energy and Water Development U.S. House of Representatives The Honorable Lamar Alexander Ranking Member SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION...

187

SOURCE SELECTION INFORMATION -  

Energy Savers [EERE]

on Energy and Water Development U.S. House of Representatives The Honorable Lamar Alexander SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION REGULATION (FAR)...

188

Demonstration of a solid deuterium source of ultra-cold neutrons  

E-Print Network [OSTI]

Ultra-cold neutrons (UCN), neutrons with energies low enough to be confined by the Fermi potential in material bottles, are playing an increasing role in measurements of fundamental properties of the neutron. The ability to manipulate UCN with material guides and bottles, magnetic fields, and gravity can lead to experiments with lower systematic errors than have been obtained in experiments with cold neutron beams. The UCN densities provided by existing reactor sources limit these experiments. The promise of much higher densities from solid deuterium sources has led to proposed facilities coupled to both reactor and spallation neutron sources. In this paper we report on the performance of a prototype spallation neutron-driven solid deuterium source. This source produced bottled UCN densities of 145 +/-7 UCN/cm3, about three times greater than the largest bottled UCN densities previously reported. These results indicate that a production UCN source with substantially higher densities should be possible.

A. Saunders; J. M. Anaya; T. J. Bowles; B. W. Filippone; P. Geltenbort; R. E. Hill; M. Hino; S. Hoedl; G. E. Hogan; T. M. Ito; K. W. Jones; T. Kawai; K. Kirch; S. K. Lamoreaux; C. -Y. Liu; M. Makela; L. J. Marek; J. W. Martin; C. L. Morris; R. N. Mortensen; A. Pichlmaier; S. J. Seestrom; A. Serebrov; D. Smith; W. Teasdale; B. Tipton; R. B. Vogelaar; A. R. Young; J. Yuan

2003-12-18T23:59:59.000Z

189

a coarse grinding with recycling of the largest particles on the hammer-mill only led to a very small decrease in the digestibility of the main components of the diet. It had  

E-Print Network [OSTI]

- a coarse grinding with recycling of the largest particles on the hammer-mill only led to a very the utilization conditions of protein-rich peas in bacon pig feeding (PEREZ, LEUILLET, BOURDON, 1979) led

Boyer, Edmond

190

On the Optimality of Beamforming for Multi-User MISO Interference Channels with Single-User Detection  

E-Print Network [OSTI]

For a multi-user interference channel with multi-antenna transmitters and single-antenna receivers, by restricting each receiver to a single-user detector, computing the largest achievable rate region amounts to solving a family of non-convex optimization problems. Recognizing the intrinsic connection between the signal power at the intended receiver and the interference power at the unintended receiver, the original family of non-convex optimization problems is converted into a new family of convex optimization problems. It is shown that, for such interference channels with each receiver implementing single-user detection, transmitter beamforming can achieve all boundary points of the achievable rate region.

Shang, Xiaohu; Poor, H Vincent

2009-01-01T23:59:59.000Z

191

Radiation Source Replacement Workshop  

SciTech Connect (OSTI)

This report summarizes a Radiation Source Replacement Workshop in Houston Texas on October 27-28, 2010, which provided a forum for industry and researchers to exchange information and to discuss the issues relating to replacement of AmBe, and potentially other isotope sources used in well logging.

Griffin, Jeffrey W.; Moran, Traci L.; Bond, Leonard J.

2010-12-01T23:59:59.000Z

192

Lithium ion sources  

E-Print Network [OSTI]

HIFAN 1866 Lithium ion sources by Prabir K. Roy, Wayne G.No. DE-AC02-05CH11231. Lithium ion sources Prabir K. RoyUSA Abstract A 10.9 cm diameter lithium alumino-silicate ion

Roy, Prabir K.

2014-01-01T23:59:59.000Z

193

Neutron sources and applications  

SciTech Connect (OSTI)

Review of Neutron Sources and Applications was held at Oak Brook, Illinois, during September 8--10, 1992. This review involved some 70 national and international experts in different areas of neutron research, sources, and applications. Separate working groups were asked to (1) review the current status of advanced research reactors and spallation sources; and (2) provide an update on scientific, technological, and medical applications, including neutron scattering research in a number of disciplines, isotope production, materials irradiation, and other important uses of neutron sources such as materials analysis and fundamental neutron physics. This report summarizes the findings and conclusions of the different working groups involved in the review, and contains some of the best current expertise on neutron sources and applications.

Price, D.L. [ed.] [Argonne National Lab., IL (United States); Rush, J.J. [ed.] [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1994-01-01T23:59:59.000Z

194

Photonic crystal light source  

DOE Patents [OSTI]

A light source is provided by a photonic crystal having an enhanced photonic density-of-states over a band of frequencies and wherein at least one of the dielectric materials of the photonic crystal has a complex dielectric constant, thereby producing enhanced light emission at the band of frequencies when the photonic crystal is heated. The dielectric material can be a metal, such as tungsten. The spectral properties of the light source can be easily tuned by modification of the photonic crystal structure and materials. The photonic crystal light source can be heated electrically or other heating means. The light source can further include additional photonic crystals that exhibit enhanced light emission at a different band of frequencies to provide for color mixing. The photonic crystal light source may have applications in optical telecommunications, information displays, energy conversion, sensors, and other optical applications.

Fleming, James G. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM); Bur, James A. (Corrales, NM)

2004-07-27T23:59:59.000Z

195

Piezotube borehole seismic source  

DOE Patents [OSTI]

A piezoelectric borehole source capable of permanent or semipermanent insertion into a well for uninterrupted well operations is described. The source itself comprises a series of piezoelectric rings mounted to an insulative mandrel internally sized to fit over a section of well tubing, the rings encased in a protective housing and electrically connected to a power source. Providing an AC voltage to the rings will cause expansion and contraction sufficient to create a sonic pulse. The piezoelectric borehole source fits into a standard well, and allows for uninterrupted pass-through of production tubing, and other tubing and electrical cables. Testing using the source may be done at any time, even concurrent with well operations, during standard production.

Daley, Tom M; Solbau, Ray D; Majer, Ernest L

2014-05-06T23:59:59.000Z

196

Pulsed ion beam source  

DOE Patents [OSTI]

An improved pulsed ion beam source having a new biasing circuit for the fast magnetic field. This circuit provides for an initial negative bias for the field created by the fast coils in the ion beam source which pre-ionize the gas in the source, ionize the gas and deliver the gas to the proper position in the accelerating gap between the anode and cathode assemblies in the ion beam source. The initial negative bias improves the interaction between the location of the nulls in the composite magnetic field in the ion beam source and the position of the gas for pre-ionization and ionization into the plasma as well as final positioning of the plasma in the accelerating gap. Improvements to the construction of the flux excluders in the anode assembly are also accomplished by fabricating them as layered structures with a high melting point, low conductivity material on the outsides with a high conductivity material in the center.

Greenly, John B. (Lansing, NY)

1997-01-01T23:59:59.000Z

197

Single rotor turbine engine  

DOE Patents [OSTI]

There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

Platts, David A. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

198

Directional measurements for sources of fission neutrons  

SciTech Connect (OSTI)

Although penetrating neutron and gamma-ray emissions arguably provide the most effective signals for locating sources of nuclear radiation, their relatively low fluxes make searching for radioactive materials a tedious process. Even assuming lightly shielded sources and detectors with large areas and high efficiencies, estimated counting times can exceed several minutes for source separations greater than ten meters. Because determining the source position requires measurements at several locations, each with its own background, the search procedure can be lengthy and difficult to automate. Although directional measurements can be helpful, conventional collimation reduces count rates and increases the detector size and weight prohibitively, especially for neutron instruments. We describe an alternative approach for locating radiation sources that is based on the concept of a polarized radiation field. In this model, the presence of a source adds a directional component to the randomly oriented background radiation. The net direction of the local field indicates the source angle, and the magnitude provides an estimate of the distance to the source. The search detector is therefore seen as a device that responds to this polarized radiation field. Our proposed instrument simply substitutes segmented detectors for conventional single-element ones, so it requires little or no collimating material or additional weight. Attenuation across the detector creates differences in the count rates for opposite segments, whose ratios can be used to calculate the orthogonal components of the polarization vector. Although this approach is applicable to different types of radiation and detectors, in this report we demonstrate its use for sources of fission neutrons by using a prototype fast-neutron detector, which also provides background-corrected energy spectra for the incident neutrons.

Byrd, R.C.; Auchampaugh, G.F.; Feldman, W.C.

1993-11-01T23:59:59.000Z

199

Quantum key distribution with entangled photon sources  

E-Print Network [OSTI]

A parametric down-conversion (PDC) source can be used as either a triggered single photon source or an entangled photon source in quantum key distribution (QKD). The triggering PDC QKD has already been studied in the literature. On the other hand, a model and a post-processing protocol for the entanglement PDC QKD are still missing. In this paper, we fill in this important gap by proposing such a model and a post-processing protocol for the entanglement PDC QKD. Although the PDC model is proposed to study the entanglement-based QKD, we emphasize that our generic model may also be useful for other non-QKD experiments involving a PDC source. Since an entangled PDC source is a basis independent source, we apply Koashi-Preskill's security analysis to the entanglement PDC QKD. We also investigate the entanglement PDC QKD with two-way classical communications. We find that the recurrence scheme increases the key rate and Gottesman-Lo protocol helps tolerate higher channel losses. By simulating a recent 144km open-a...

Ma, X; Lo, H K; Ma, Xiongfeng; Fung, Chi-Hang Fred; Lo, Hoi-Kwong

2007-01-01T23:59:59.000Z

200

Tunable terahertz radiation source  

SciTech Connect (OSTI)

Terahertz radiation source and method of producing terahertz radiation, said source comprising a junction stack, said junction stack comprising a crystalline material comprising a plurality of self-synchronized intrinsic Josephson junctions; an electrically conductive material in contact with two opposing sides of said crystalline material; and a substrate layer disposed upon at least a portion of both the crystalline material and the electrically-conductive material, wherein the crystalline material has a c-axis which is parallel to the substrate layer, and wherein the source emits at least 1 mW of power.

Boulaevskii, Lev; Feldmann, David M; Jia, Quanxi; Koshelev, Alexei; Moody, Nathan A

2014-01-21T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Microfabricated diffusion source  

DOE Patents [OSTI]

A microfabricated diffusion source to provide for a controlled diffusion rate of a vapor comprises a porous reservoir formed in a substrate that can be filled with a liquid, a headspace cavity for evaporation of the vapor therein, a diffusion channel to provide a controlled diffusion of the vapor, and an outlet to release the vapor into a gas stream. The microfabricated diffusion source can provide a calibration standard for a microanalytical system. The microanalytical system with an integral diffusion source can be fabricated with microelectromechanical systems technologies.

Oborny, Michael C. (Albuquerque, NM); Frye-Mason, Gregory C. (Cedar Crest, NM); Manginell, Ronald P. (Albuquerque, NM)

2008-07-15T23:59:59.000Z

202

The European Large Area ISO Survey VIII: 90-micron final analysis and source counts  

E-Print Network [OSTI]

We present a re--analysis of the European Large Area ISO Survey (ELAIS) 90mum observations carried out with ISOPHOT, an instrument on board the ESA's Infrared Space Observatory (ISO). With more than 12 sq. deg., the ELAIS survey is the largest area covered by ISO in a single program and is about one order of magnitude deeper than the IRAS 100mum survey. The data analysis is presented and was mainly performed with the Phot Interactive Analysis software but using the pairwise method of Stickel et al. (2003) for signal processing from ERD (Edited Raw Data) to SCP (Signal per Chopper Plateau). The ELAIS 90mum catalogue contains 229 reliable sources with fluxes larger than 70 mJy and is available at www.blackwell-synergy.com. Number counts are presented and show an excess above the no-evolution model prediction. This confirms the strong evolution detected at shorter(15mum) and longer (170mum) wavelengths in other ISO surveys. The ELAIS counts are in agreement with previous works at 90mum and in particular with the deeper counts extracted from the Lockman hole observations. Comparison with recent evolutionary models show that the models of Franceschini et al. and Guiderdoni et al. which includes a heavily-extinguished population of galaxies give the best fit to the data. Deeper observations are nevertheless required to better discriminate between the model predictions in the far-infrared and are scheduled with the Spitzer Space Telescope which already started operating and will also be performed by ASTRO-F.

Ph. Heraudeau; S. Oliver; C. del Burgo; C. Kiss; M. Stickel; T. Mueller; M. Rowan-Robinson; A. Efstathiou; C. Surace; L. V. Toth; S. Serjeant; D. M. Alexander; A. Franceschini; D. Lemke; I. Perez-Fournon; T. Morel; J-L. Puget; D. Rigopoulou; B. Rocca-Volmerange; A. Verma

2004-10-15T23:59:59.000Z

203

Seismic imaging of hydraullically-stimulated fractures: A numerical study of the effect of the source mechanism  

E-Print Network [OSTI]

We present a numerical study of seismic imaging of hydraulically stimulated fractures using a single source from an adjacent fracturing-process. The source is either a point force generated from the perforation of the ...

Shabelansky, Andrey Hanan

2012-01-01T23:59:59.000Z

204

A surface ionization source  

E-Print Network [OSTI]

The main part of the work described herein is the development and testing of a surface ionization source for use on a collinear fast beam laser spectroscopy apparatus. A description of the previously existing fast beam apparatus is given...

Buzatu, Daniel J.

1995-01-01T23:59:59.000Z

205

National Synchrotron Light Source  

ScienceCinema (OSTI)

A tour of Brookhaven's National Synchrotron Light Source (NSLS). The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviole

None

2010-01-08T23:59:59.000Z

206

Galactic Superluminal Sources  

E-Print Network [OSTI]

A new class of X-ray sources was clearly established with the discovery of highly relativistic radio jets from the galactic sources GRS 1915+105 and GRO J1655-40. Both of these objects have given us a broader view of black holes and the formation of jets, yet they also show the complexity of the accretion environment near relativistic objects. The fast apparent motion of the jets, their luminosity and variability, their high energy spectrum, and approximate scaling to the behavior of active galactic nuclei, certainly warrant the description "microquasar". I present a review of the observational data on these sources, and discuss where we stand on a physical picture of GRS 1915+105 and GRO J1655-40 as taken from multi-wavelength studies. I also point out other galactic sources which share some of the properties of the microquasars, and what to look for as a high energy "signature" in future observations.

B. A. Harmon

1998-12-21T23:59:59.000Z

207

ION SOURCES FOR CYCLOTRONS  

E-Print Network [OSTI]

These utilize lasers, plasma focus, sparks, and ex plodingextractor voltage A plasma focus device has been used byf n a s Fig. 22: The plasma focus high charge state source

Clark, D.J.

2010-01-01T23:59:59.000Z

208

Computerized Energy Information Sources  

E-Print Network [OSTI]

Many computerized files of energy- and energy conservation-related information are currently available through commercial and governmental sources such as Lockheed Information Systems, System Development Corporation, and DOE/RECON. Private...

Gordon, D.

1979-01-01T23:59:59.000Z

209

Single-Column Modeling  

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 systemsBi (2)Sharing Smart GridShiftMethodSimwYpes(tm)Single microbeC.J.

210

Field emission electron source  

DOE Patents [OSTI]

A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

2000-01-01T23:59:59.000Z

211

National Synchrotron Light Source  

ScienceCinema (OSTI)

A tour of Brookhaven's National Synchrotron Light Source (NSLS), hosted by Associate Laboratory Director for Light Sources, Stephen Dierker. The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviolet, and x-ray light for basic and applied research in physics, chemistry, medicine, geophysics, environmental, and materials sciences.

BNL

2009-09-01T23:59:59.000Z

212

Magnetron sputtering source  

DOE Patents [OSTI]

A magnetron sputtering source for sputtering coating substrates includes a high thermal conductivity electrically insulating ceramic and magnetically attached sputter target which can eliminate vacuum sealing and direct fluid cooling of the cathode assembly. The magnetron sputtering source design results in greater compactness, improved operating characteristics, greater versatility, and low fabrication cost. The design easily retrofits most sputtering apparatuses and provides for safe, easy, and cost effective target replacement, installation, and removal.

Makowiecki, Daniel M. (Livermore, WA); McKernan, Mark A. (Livermore, CA); Grabner, R. Fred (Brentwood, CA); Ramsey, Philip B. (Livermore, CA)

1994-01-01T23:59:59.000Z

213

Magnetron sputtering source  

DOE Patents [OSTI]

A magnetron sputtering source for sputtering coating substrates includes a high thermal conductivity electrically insulating ceramic and magnetically attached sputter target which can eliminate vacuum sealing and direct fluid cooling of the cathode assembly. The magnetron sputtering source design results in greater compactness, improved operating characteristics, greater versatility, and low fabrication cost. The design easily retrofits most sputtering apparatuses and provides for safe, easy, and cost effective target replacement, installation, and removal. 12 figs.

Makowiecki, D.M.; McKernan, M.A.; Grabner, R.F.; Ramsey, P.B.

1994-08-02T23:59:59.000Z

214

Single-Walle 4. Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

applications, carbon nanotube research is ac- tively being pursued in diverse areas including energy storage105 Single-Walle 4. Single-Walled Carbon Nanotubes Sebastien Nanot, Nicholas A. Thompson, Ji Single-walled carbon nanotubes (SWCNTs) are hol- low, long cylinders with extremely large aspect ratios

Kono, Junichiro

215

Neutron kinetics in subcritical cores with application to the source modulation method  

E-Print Network [OSTI]

Neutron kinetics in subcritical cores with application to the source modulation method J. Wright for the measurement of reactivity in subcritical, source-driven cores. Methods of measuring reactivity by a single. Hence, first, the conditions of point kinetic behaviour in subcritical source-driven cores are revis

Pázsit, Imre

216

Mathematics & MMath (Single Honours Degrees)  

E-Print Network [OSTI]

124 Mathematics & Statistics MMath (Single Honours Degrees) Mathematics Applied Mathematics Pure Mathematics Statistics BSc or MA (Single Honours Degrees) Mathematics Statistics BSc (Joint Honours Degrees) Mathematics and one of: Biology Chemistry Computer Science Economics Geography Statistics and one of: Biology

Brierley, Andrew

217

(Data in metric tons of contained lithium, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world, followed by China,  

E-Print Network [OSTI]

, but growing through the recycling of lithium batteries. Import Sources (1994-97): Chile, 96%; and other, 4 lithium salts from battery recycling and lithium hydroxide monohydrate from former Department of Energy102 LITHIUM (Data in metric tons of contained lithium, unless otherwise noted) Domestic Production

218

Selection of Russian Plutonium Beryllium Sources for Inclusion in the Nuclear Mateirals Information Program Archive  

SciTech Connect (OSTI)

Throughout the 1960s and 1970s, the former Soviet Union produced and exported Plutonium-Beryllium (PuBe) neutron sources to various Eastern European countries. The Russian sources consist of an intermetallic compound of plutonium and beryllium encapsulated in an inner welded, sealed capsule and consisting of a body and one or more covers. The amount of plutonium in the sources ranges from 0.002 g up to 15 g. A portion of the sources was originally exported to East Germany. A portion of these sources were acquired by Los Alamos National Laboratory (LANL) in the late 1990s for destruction in the Offsite Source Recovery Program. When the OSRP was canceled, the remaining 88 PuBe neutron sources were packaged and stored in a 55-gal drum at T A-55. This storage configuration is no longer acceptable for PuBe sources, and the sources must either be repackaged or disposed of. Repackaging would place the sources into Hagan container, and depending on the dose rates, some sources may be packaged individually increasing the footprint and cost of storage. In addition, each source will be subject to leak-checking every six months. Leaks have already been detected in some of the sources, and due to the age of these sources, it is likely that additional leaks may be detected over time, which will increase the overall complexity of handling and storage. Therefore, it was decided that the sources would be disposed of at the Waste Isolation Pilot Plant (WIPP) due to the cost and labor associated with continued storage at TA-55. However, the plutonium in the sources is of Russian origin and needs to be preserved for research purposes. Therefore, it is important that a representative sample of the sources retained and archived for future studies. This report describes the criteria used to obtain a representative sample of the sources. Nine Russian PuBe neutron sources have been selected out of a collection of 77 sources for inclusion in the NMIP archive. Selection criteria were developed so that the largest sources that are representative of the collection are included. One representative source was chosen for every 20 sources in the collection, and effort was made to preserve sources unique to the collection. In total, four representative sources and five unique sources were selected for the archive. The archive samples contain 40 grams of plutonium with an isotopic composition similar to that of weapon grade material and three grams of plutonium with an isotopic composition similar to that of reactor grade plutonium.

Narlesky, Joshua E [Los Alamos National Laboratory; Padilla, Dennis D [Los Alamos National Laboratory; Watts, Joe [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

219

Hybrid Multilevel Inverter with Single DC Haiwen Liu1  

E-Print Network [OSTI]

Hybrid Multilevel Inverter with Single DC Source Haiwen Liu1 , Leon M. Tolbert1, 2 , Burak Ozpineci Knoxville, TN 37932 3. Parker-Hannifin Corp. Olive Branch, MI 38654 Abstract- A hybrid multilevel inverter inverter (one leg for each phase) and H-bridge in series with each inverter leg. The inverter can be used

Tolbert, Leon M.

220

Fully Enclosed Cylindrical Single-Electrode-Based Triboelectric Nanogenerator  

E-Print Network [OSTI]

electronics is a new emerging area. Mechanical energy, as one of the most general power sources Institute of Materials Science, Tsukuba-city, Ibaraki 305-0047, Japan *S Supporting Information ABSTRACT: We: triboelectric nanogenerator, single-electrode-based, self-powered, energy harvesting INTRODUCTION Owing

Wang, Zhong L.

Note: This page contains sample records for the topic "largest single source" 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

Pulsed ion beam source  

DOE Patents [OSTI]

An improved pulsed ion beam source is disclosed having a new biasing circuit for the fast magnetic field. This circuit provides for an initial negative bias for the field created by the fast coils in the ion beam source which pre-ionize the gas in the source, ionize the gas and deliver the gas to the proper position in the accelerating gap between the anode and cathode assemblies in the ion beam source. The initial negative bias improves the interaction between the location of the nulls in the composite magnetic field in the ion beam source and the position of the gas for pre-ionization and ionization into the plasma as well as final positioning of the plasma in the accelerating gap. Improvements to the construction of the flux excluders in the anode assembly are also accomplished by fabricating them as layered structures with a high melting point, low conductivity material on the outsides with a high conductivity material in the center. 12 figs.

Greenly, J.B.

1997-08-12T23:59:59.000Z

222

Light sources based on semiconductor current filaments  

DOE Patents [OSTI]

The present invention provides a new type of semiconductor light source that can produce a high peak power output and is not injection, e-beam, or optically pumped. The present invention is capable of producing high quality coherent or incoherent optical emission. The present invention is based on current filaments, unlike conventional semiconductor lasers that are based on p-n junctions. The present invention provides a light source formed by an electron-hole plasma inside a current filament. The electron-hole plasma can be several hundred microns in diameter and several centimeters long. A current filament can be initiated optically or with an e-beam, but can be pumped electrically across a large insulating region. A current filament can be produced in high gain photoconductive semiconductor switches. The light source provided by the present invention has a potentially large volume and therefore a potentially large energy per pulse or peak power available from a single (coherent) semiconductor laser. Like other semiconductor lasers, these light sources will emit radiation at the wavelength near the bandgap energy (for GaAs 875 nm or near infra red). Immediate potential applications of the present invention include high energy, short pulse, compact, low cost lasers and other incoherent light sources.

Zutavern, Fred J. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Buttram, Malcolm T. (Sandia Park, NM); Mar, Alan (Albuquerque, NM); Helgeson, Wesley D. (Albuquerque, NM); O'Malley, Martin W. (Edgewood, NM); Hjalmarson, Harold P. (Albuquerque, NM); Baca, Albert G. (Albuquerque, NM); Chow, Weng W. (Cedar Crest, NM); Vawter, G. Allen (Albuquerque, NM)

2003-01-01T23:59:59.000Z

223

Dual source heat pump  

DOE Patents [OSTI]

What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid provides energy for defrosting the second heat exchanger when operating in the air source mode and also provides a alternate source of heat.

Ecker, Amir L. (Dallas, TX); Pietsch, Joseph A. (Dallas, TX)

1982-01-01T23:59:59.000Z

224

COMBUSTION SOURCES OF NITROGEN COMPOUNDS  

E-Print Network [OSTI]

Rasmussen, R.A. (1976). Combustion as a source of nitrousx control for stationary combustion sources. Prog. Energy,CA, March 3-4, 1977 COMBUSTION SOURCES OF NITROGEN COMPOUNDS

Brown, Nancy J.

2011-01-01T23:59:59.000Z

225

Self-seeded single-frequency laser peening method  

DOE Patents [OSTI]

A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

Dane, C. Brent (Livermore, CA); Hackel, Lloyd (Livermore, CA); Harris, Fritz B. (Rocklin, CA)

2009-08-11T23:59:59.000Z

226

Self-seeded single-frequency laser peening method  

DOE Patents [OSTI]

A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

DAne, C.Brent; Hackey, Lloyd A.; Harris, Fritz B.

2012-06-26T23:59:59.000Z

227

OLED area illumination source  

DOE Patents [OSTI]

The present invention relates to an area illumination light source comprising a plurality of individual OLED panels. The individual OLED panels are configured in a physically modular fashion. Each OLED panel comprising a plurality of OLED devices. Each OLED panel comprises a first electrode and a second electrode such that the power being supplied to each individual OLED panel may be varied independently. A power supply unit capable of delivering varying levels of voltage simultaneously to the first and second electrodes of each of the individual OLED panels is also provided. The area illumination light source also comprises a mount within which the OLED panels are arrayed.

Foust, Donald Franklin (Scotia, NY); Duggal, Anil Raj (Niskayuna, NY); Shiang, Joseph John (Niskayuna, NY); Nealon, William Francis (Gloversville, NY); Bortscheller, Jacob Charles (Clifton Park, NY)

2008-03-25T23:59:59.000Z

228

Quantum key distribution with entangled photon sources  

E-Print Network [OSTI]

A parametric down-conversion (PDC) source can be used as either a triggered single photon source or an entangled photon source in quantum key distribution (QKD). The triggering PDC QKD has already been studied in the literature. On the other hand, a model and a post-processing protocol for the entanglement PDC QKD are still missing. In this paper, we fill in this important gap by proposing such a model and a post-processing protocol for the entanglement PDC QKD. Although the PDC model is proposed to study the entanglement-based QKD, we emphasize that our generic model may also be useful for other non-QKD experiments involving a PDC source. Since an entangled PDC source is a basis independent source, we apply Koashi-Preskill's security analysis to the entanglement PDC QKD. We also investigate the entanglement PDC QKD with two-way classical communications. We find that the recurrence scheme increases the key rate and Gottesman-Lo protocol helps tolerate higher channel losses. By simulating a recent 144km open-air PDC experiment, we compare three implementations -- entanglement PDC QKD, triggering PDC QKD and coherent state QKD. The simulation result suggests that the entanglement PDC QKD can tolerate higher channel losses than the coherent state QKD. The coherent state QKD with decoy states is able to achieve highest key rate in the low and medium-loss regions. By applying Gottesman-Lo two-way post-processing protocol, the entanglement PDC QKD can tolerate up to 70dB combined channel losses (35dB for each channel) provided that the PDC source is placed in between Alice and Bob. After considering statistical fluctuations, the PDC setup can tolerate up to 53dB channel losses.

Xiongfeng Ma; Chi-Hang Fred Fung; Hoi-Kwong Lo

2007-03-14T23:59:59.000Z

229

Arrangement, Dopant Source, And Method For Making Solar Cells  

DOE Patents [OSTI]

Disclosed is an arrangement, dopant source and method used in the fabrication of photocells that minimize handling of cell wafers and involve a single furnace step. First, dopant sources are created by depositing selected dopants onto both surfaces of source wafers. The concentration of dopant that is placed on the surface is relatively low so that the sources are starved sources. These sources are stacked with photocell wafers in alternating orientation in a furnace. Next, the temperature is raised and thermal diffusion takes place whereby the dopant leaves the source wafers and becomes diffused in a cell wafer creating the junctions necessary for photocells to operate. The concentration of dopant diffused into a single side of the cell wafer is proportional to the concentration placed on the respective dopant source facing the side of the cell wafer. Then, in the same thermal cycle, a layer of oxide is created by introducing oxygen into the furnace environment after sufficient diffusion has taken place. Finally, the cell wafers receive an anti-reflective coating and electrical contacts for the purpose of gathering electrical charge.

Rohatgi, Ajeet (Marietta, GA); Krygowski, Thomas W. (Smyrna, GA)

1999-10-26T23:59:59.000Z

230

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P{sup +} from PH{sub 3}. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P{sup +}, As{sup +}, and B{sup +} without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices. 6 figs.

Leung, K.N.

1996-05-14T23:59:59.000Z

231

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P.sup.+ from PH.sub.3. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P.sup.+, AS.sup.+, and B.sup.+ without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices.

Leung, Ka-Ngo (Hercules, CA)

1996-01-01T23:59:59.000Z

232

Sealed Radioactive Source Accountability  

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

To establish Department of Energy (DOE) interim policy and to provide guidance for sealed radioactive source accountability. The directive does not cancel any directives. Extended by DOE N 5400.10 to 12-24-93 & Extended by DOE N 5400.12 to 12-24-94.

1991-12-24T23:59:59.000Z

233

Sealed Radioactive Source Accountability  

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

This Notice extends DOE N 5400.9, Sealed Radioactive Source Accountability, of 12-24-91, until 12-24-95, unless sooner superseded or rescinded. The contents of DOE N 5400.9 will be updated and incorporated in the revised DOE O 5480.11, Radiation Protection for Occupational Workers.

1994-12-22T23:59:59.000Z

234

Optimized Volumetric Scanning for X-Ray Array Sources  

SciTech Connect (OSTI)

Non-destructive evaluation (NDE) is the science and technology of determining non-invasively the internal structure of manufactured parts, objects, and materials. NDE application areas include medicine, industrial manufacturing, military, homeland security, and airport luggage screening. X-ray measurement systems are most widely used because of their ability to image through a wide range of material densities (from human tissue in medical applications to the dense materials of weapon components). Traditional x-ray systems involve a single source and detector system that rotate and/or translate about the object under evaluation. At each angular location, the source projects x-rays through the object. The rays undergo attenuation proportional to the density of the object's constitutive material. The detector records a measure of the attenuation. Mathematical algorithms are used to invert the forward attenuated ray projection process to form images of the object. This is known as computed tomography (CT). In recent years, the single-source x-ray NDE systems have been generalized to arrays of x-ray sources. Array sources permit multiple views of the object with fewer rotations and translations of the source/detector system. The spatially diverse nature of x-ray array sources has the potential of reducing data collection time, reducing imaging artifacts, and increasing the resolution of the resultant images. Most of the existing CT algorithms were not derived from array source models with a spatially diverse set of viewing perspectives. Single-source x-ray CT data collection, processing, and imaging methods and algorithms are not applicable when the source location is expanded from one dimension (a rotating and/or translating point source) to two (a rotating and/or translating array). They must be reformulated. The goal of this project is to determine the applicability of x-ray array sources to problems of interest to LLNL and its customers. It is believed array source data collection will be faster while yielding higher resolution reconstructions with fewer artifacts. There are three tasks in the research: (1) Develop forward array source analytic and computational models; (2) Research and develop array source reconstruction algorithms; and (3) Perform experiments.

Lehman, S K; Foudray, A M; Wang, A; Kallman, J S; Martz, H

2009-09-29T23:59:59.000Z

235

Dual echelon femtosecond single-shot spectroscopy  

SciTech Connect (OSTI)

We have developed a femtosecond single-shot spectroscopic technique to measure irreversible changes in condensed phase materials in real time. Crossed echelons generate a two-dimensional array of time-delayed pulses with one femtosecond probe pulse. This yields 9 ps of time-resolved data from a single laser shot, filling a gap in currently employed measurement methods. We can now monitor ultrafast irreversible dynamics in solid-state materials or other samples that cannot be flowed or replenished between laser shots, circumventing limitations of conventional pump-probe methods due to sample damage or product buildup. Despite the absence of signal-averaging in the single-shot measurement, an acceptable signal-to-noise level has been achieved via background and reference calibration procedures. Pump-induced changes in relative reflectivity as small as 0.2%?0.5% are demonstrated in semimetals, with both electronic and coherent phonon dynamics revealed by the data. The optical arrangement and the space-to-time conversion and calibration procedures necessary to achieve this level of operation are described. Sources of noise and approaches for dealing with them are discussed.

Shin, Taeho; Wolfson, Johanna W.; Teitelbaum, Samuel W.; Kandyla, Maria; Nelson, Keith A., E-mail: kanelson@mit.edu [Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2014-08-15T23:59:59.000Z

236

What Does E85 Have to Do with Clean Air? | Department of Energy  

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

care about E85? Simple: exhaust emissions from vehicles are the single largest source of air pollution in Minnesota, and our organization's mission is focused on providing...

237

Temporal Loop Multiplexing: A resource efficient scheme for multiplexed photon-pair sources  

E-Print Network [OSTI]

Single photons are a vital resource for photonic quantum information processing. However, even state-of-the-art single photon sources based on photon-pair generation and heralding detection have only a low probability of delivering a single photon when one is requested. We analyse a scheme that uses a switched fibre delay loop to increase the delivery probability per time bin of single photons from heralded sources. We show that, for realistic experimental parameters, combining the output of up to 15 pulses can yield a performance improvement of a factor of 10. We consider the future performance of this scheme with likely component improvements.

Francis-Jones, Robert J A

2015-01-01T23:59:59.000Z

238

The Department of Political Science at the University of Washington has a long history of excellence in teaching and research. Political Science is one of the largest undergraduate majors in the College of Arts  

E-Print Network [OSTI]

of Political Science at the University of Washington has a long history of excellence in teaching and research. Political Science is one of the largest undergraduate majors in the College of Arts and Sciences breaking and influential research on important questions about politics and policy. We are located

Anderson, Richard

239

Position Overview: This is a salaried, plus commissioned, full-time, opportunity which includes a comprehensive benefit Join 150 landscape professionals just like yourself at West Michigan's largest and fastest growing landscape management company  

E-Print Network [OSTI]

of commercial landscape maintenance accounts. As our client's pri- mary contact your main focus a comprehensive benefit package. Join 150 landscape professionals just like yourself at West Michigan's largest and fastest growing landscape management company The Account Manager is responsible for overseeing a portfolio

Isaacs, Rufus

240

The University of New Mexico is located in Albuquerque, the largest city in New Mexico. Albuquerque is an ethnically diverse city of half a million residents that has been listed among the smartest U.S. cities and best  

E-Print Network [OSTI]

The University of New Mexico is located in Albuquerque, the largest city in New Mexico for hiking, biking, rock climbing and skiing. Photo credit: Tom Brahl Photo The University of New Mexico is the premier research university in the state of New Mexico. UNM is a Carnegie Very High Research Activity

Maccabe, Barney

Note: This page contains sample records for the topic "largest single source" 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

Isolating and moving single atoms using silicon nanocrystals  

DOE Patents [OSTI]

A method is disclosed for isolating single atoms of an atomic species of interest by locating the atoms within silicon nanocrystals. This can be done by implanting, on the average, a single atom of the atomic species of interest into each nanocrystal, and then measuring an electrical charge distribution on the nanocrystals with scanning capacitance microscopy (SCM) or electrostatic force microscopy (EFM) to identify and select those nanocrystals having exactly one atom of the atomic species of interest therein. The nanocrystals with the single atom of the atomic species of interest therein can be sorted and moved using an atomic force microscope (AFM) tip. The method is useful for forming nanoscale electronic and optical devices including quantum computers and single-photon light sources.

Carroll, Malcolm S. (Albuquerque, NM)

2010-09-07T23:59:59.000Z

242

EMSL - Single Particle Laser Ablation  

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

single-particle-laser-ablation en Effect of Solar Radiation on the Optical Properties and Molecular Composition of Laboratory Proxies of Atmospheric Brown Carbon http:...

243

Calibrated vapor generator source  

DOE Patents [OSTI]

A portable vapor generator is disclosed that can provide a controlled source of chemical vapors, such as, narcotic or explosive vapors. This source can be used to test and calibrate various types of vapor detection systems by providing a known amount of vapors to the system. The vapor generator is calibrated using a reference ion mobility spectrometer. A method of providing this vapor is described, as follows: explosive or narcotic is deposited on quartz wool, placed in a chamber that can be heated or cooled (depending on the vapor pressure of the material) to control the concentration of vapors in the reservoir. A controlled flow of air is pulsed over the quartz wool releasing a preset quantity of vapors at the outlet. 10 figs.

Davies, J.P.; Larson, R.A.; Goodrich, L.D.; Hall, H.J.; Stoddard, B.D.; Davis, S.G.; Kaser, T.G.; Conrad, F.J.

1995-09-26T23:59:59.000Z

244

Voltage controlled current source  

DOE Patents [OSTI]

A seven decade, voltage controlled current source is described for use in testing intermediate range nuclear instruments that covers the entire test current range of from 10 picoamperes to 100 microamperes. High accuracy is obtained throughout the entire seven decades of output current with circuitry that includes a coordinated switching scheme responsive to the input signal from a hybrid computer to control the input voltage to an antilog amplifier, and to selectively connect a resistance to the antilog amplifier output to provide a continuous output current source as a function of a preset range of input voltage. An operator controlled switch provides current adjustment for operation in either a real-time simulation test mode or a time response test mode.

Casne, Gregory M. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

245

Evaluated teletherapy source library  

DOE Patents [OSTI]

The Evaluated Teletherapy Source Library (ETSL) is a system of hardware and software that provides for maintenance of a library of useful phase space descriptions (PSDs) of teletherapy sources used in radiation therapy for cancer treatment. The PSDs are designed to be used by PEREGRINE, the all-particle Monte Carlo dose calculation system. ETSL also stores other relevant information such as monitor unit factors (MUFs) for use with the PSDs, results of PEREGRINE calculations using the PSDs, clinical calibration measurements, and geometry descriptions sufficient for calculational purposes. Not all of this information is directly needed by PEREGRINE. It also is capable of acting as a repository for the Monte Carlo simulation history files from which the generic PSDs are derived.

Cox, Lawrence J. (Los Alamos, NM); Schach Von Wittenau, Alexis E. (Livermore, CA)

2000-01-01T23:59:59.000Z

246

The European Spallation Source  

SciTech Connect (OSTI)

The European Spallation Source (ESS) is a 5 MW, 2.5 GeV long pulse proton linac, to be built and commissioned in Lund, Sweden. The Accelerator Design Update (ADU) project phase is under way, to be completed at the end of 2012 by the delivery of a Technical Design Report. Improvements to the 2003 ESS design will be summarised, and the latest design activities will be presented.

Peggs, S; Eshraqi, M; Hahn, H; Jansson, A; Lindroos, M; Ponton, A; Rathsman, K; Trahern, G; Bousso, S; Calaga, R; Devanz, G; Duperrier, R D; Eguia, J; Gammino, S; Moller, S P; Oyon, C; Ruber, R.J.M.Y.

2011-03-01T23:59:59.000Z

247

Improving noise threshold for optical quantum computing with the EPR photon source  

E-Print Network [OSTI]

We show that the noise threshold for optical quantum computing can be significantly improved by using the EPR-type of photon source. In this implementation, the detector efficiency $\\eta_{d}$ is required to be larger than 50%, and the source efficiency $\\eta_{s}$ can be an arbitrarily small positive number. This threshold compares favorably with the implementation using the single-photon source, where one requires the combined efficiency $\\eta_{d}\\eta_{s}>2/3$. We discuss several physical setups for realization of the required EPR photon source, including the photon emitter from a single-atom cavity.

Z. -H. Wei; Y. -J. Han; C. H. OH; L. -M. Duan

2009-12-08T23:59:59.000Z

248

Capillary discharge source  

DOE Patents [OSTI]

Debris generation from an EUV electric discharge plasma source device can be significantly reduced or essentially eliminated by encasing the electrodes with dielectric or electrically insulating material so that the electrodes are shielded from the plasma, and additionally by providing a path for the radiation to exit wherein the electrodes are not exposed to the area where the radiation is collected. The device includes: (a) a body, which is made of an electrically insulating material, that defines a capillary bore that has a proximal end and a distal end and that defines at least one radiation exit; (b) a first electrode that defines a first channel that has a first inlet end that is connected to a source of gas and a first outlet end that is in communication with the capillary bore, wherein the first electrode is positioned at the distal end of the capillary bore; (c) a second electrode that defines a second channel that has a second inlet end that is in communication with the capillary bore and an outlet end, wherein the second electrode is positioned at the proximal end of the capillary bore; and (d) a source of electric potential that is connected across the first and second electrodes, wherein radiation generated within the capillary bore is emitted through the at least one radiation exit and wherein the first electrode and second electrode are shielded from the emitted radiation.

Bender, III, Howard Albert

2003-11-25T23:59:59.000Z

249

A Numerical Model for the Dynamic Simulation of a Recirculation Single-Effect Absorption Chiller  

E-Print Network [OSTI]

A Numerical Model for the Dynamic Simulation of a Recirculation Single- Effect Absorption Chiller A dynamic model for the simulation of a new single-effect water/lithium bromide absorption chiller is developed. The chiller is driven by two distinct heat sources, includes a custom integrated falling film

Paris-Sud XI, Université de

250

Ultrafast control of donor-bound electron spins with single detuned optical pulses  

E-Print Network [OSTI]

LETTERS Ultrafast control of donor-bound electron spins with single detuned optical pulses KAI on microwave sources--can be attained with broadband optical pulses. One promising ultrafast technique uses single broadband pulses detuned from resonance in a three-level system4 . This technique is robust

Loss, Daniel

251

BLIND SEPARATION OF FETAL ECG FROM SINGLE MIXTURE USING SVD AND ICA  

E-Print Network [OSTI]

BLIND SEPARATION OF FETAL ECG FROM SINGLE MIXTURE USING SVD AND ICA Ping Gao Dept. of Computational@zwhome.org ABSTRACT In this paper, we propose a novel blind-source separation method to extract fetal ECG from a single-channel signal measured on the abdomen of the mother. The signal is a mixture of the fetal ECG

Chang, Ee-Chien

252

Proceedings of the 10th international workshop on ECR ion sources  

SciTech Connect (OSTI)

This report contains papers on the following topics: Recent Developments and Future Projects on ECR Ion Sources; Operation of the New KVI ECR Ion Source at 10 GHz; Operational Experience and Status of the INS SF-ECR Ion Source; Results of the New ECR4'' 14.5 GHz ECRIS; Preliminary Performance of the AECR; Experimental Study of the Parallel and Perpendicular Particle Losses from an ECRIS Plasma; Plasma Instability in Electron Cyclotron Resonance Heated Ion Sources; The Hyperbolic Energy Analyzer; Status of ECR Source Development; The New 10 GHz CAPRICE Source; First Operation of the Texas A M ECR Ion Source; Recent Developments of the RIKEN ECR Ion Sources; The 14 GHz CAPRICE Source; Characteristics and Potential Applications of an ORNL Microwave ECR Multicusp Plasma Ion Source; ECRIPAC: The Production and Acceleration of Multiply Charged Ions Using an ECR Plasma; ECR Source for the HHIRF Tandem Accelerator; Feasibility Studies for an ECR-Generated Plasma Stripper; Production of Ion Beams by using the ECR Plasmas Cathode; A Single Stage ECR Source for Efficient Production of Radioactive Ion Beams; The Single Staged ECR Source at the TRIUMF Isotope Separator TISOL; The Continuous Wave, Optically Pumped H{sup {minus}} Source; The H{sup +} ECR Source for the LAMPF Optically Pumped Polarized Ion Source; Present Status of the Warsaw CUSP ECR Ion Source; An ECR Source for Negative Ion Production; GYRAC-D: A Device for a 200 keV ECR Plasma Production and Accumulation; Status Report of the 14.4 GHZ ECR in Legnaro; Status of JYFL-ECRIS; Report on the Uppsala ECRIS Facility and Its Planned Use for Atomic Physics; A 10 GHz ECR Ion Source for Ion-Electron and Ion-Atom Collision Studies; and Status of the ORNL ECR Source Facility for Multicharged Ion Collision Research.

Meyer, F W; Kirkpatrick, M I [eds.

1991-01-01T23:59:59.000Z

253

Far off-resonant coupling between photonic crystal microcavity and single quantum dot with resonant excitation  

SciTech Connect (OSTI)

In this paper, we experimentally demonstrate that with sub-nanowatt coherent s-shell excitation of a single InAs quantum dot, off-resonant coupling of 4.1?nm is possible between L3 photonic crystal microcavity and the quantum dot at 50?K. This resonant excitation reduces strongly the effect of surrounding charges to quantum dot, multiexciton complexes and pure dephasing. It seems that this far off-resonant coupling is the result of increased number of acoustical phonons due to high operating temperature of 50?K. The 4.1?nm detuning is the largest amount for this kind of coupling.

Banihashemi, Mehdi; Ahmadi, Vahid, E-mail: v-ahmadi@modares.ac.ir [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of)] [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of); Nakamura, Tatsuya; Kojima, Takanori; Kojima, Kazunobu; Noda, Susumu [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)] [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)

2013-12-16T23:59:59.000Z

254

Influence of coal as an energy source on environmental pollution  

SciTech Connect (OSTI)

This article considers the influence of coal energy on environmental pollution. Coal is undoubtedly part of the greenhouse problem. The main emissions from coal combustion are sulfur dioxide (SO{sub 2}), nitrogen oxides (NOx), particulates, carbon dioxide (CO{sub 2}), and mercury (Hg). Since 1980, despite a 36% increase in electricity generation and more than a 50% increase in coal use, electric utility SO{sub 2} and NOx emissions have declined significantly. Globally, the largest source of anthropogenic greenhouse gas (GHG) emissions is CO{sub 2} from the combustion of fossil fuels - around 75% of total GHG emissions covered under the Kyoto Protocol. At the present time, coal is responsible for 30-40% of world CO{sub 2} emission from fossil fuels.

Balat, M. [University of Mahallesi, Trabzon (Turkey)

2007-07-01T23:59:59.000Z

255

Combined-channel instantaneous frequency analysis for audio source separation based on comodulation  

E-Print Network [OSTI]

Normal human listeners have a remarkable ability to focus on a single sound or speaker of interest and to block out competing sound sources. Individuals with hearing impairments, on the other hand, often experience great ...

Jacobson, Barry David

2008-01-01T23:59:59.000Z

256

High-Intensity Coherent Vacuum Ultraviolet Source Using Unfocussed Commercial Dye Lasers  

E-Print Network [OSTI]

1 High-Intensity Coherent Vacuum Ultraviolet Source Using Unfocussed Commercial Dye Lasers Daniel R Intruments Using two or three commercial pulsed nanosecond dye lasers pumped by a single 30 Hz Nd:YAG laser

Davis, H. Floyd

257

Engineering integrated pure narrow-band photon sources  

E-Print Network [OSTI]

Engineering and controlling well defined states of light for quantum information applications is of increasing importance as the complexity of quantum systems grows. For example, in quantum networks high multi-photon interference visibility requires properly devised single mode sources. In this paper we propose a spontaneous parametric down conversion source based on an integrated cavity-waveguide, where single narrow-band, possibly distinct, spectral modes for the idler and the signal fields can be generated. This mode selection takes advantage of the clustering effect, due to the intrinsic dispersion of the nonlinear material. In combination with a CW laser and fast detection, our approach provides a means to engineer a source that can efficiently generate pure photons, without filtering, that is compatible with long distance quantum communication. Furthermore, it is extremely flexible and could easily be adapted to a wide variety of wavelengths and applications.

Enrico Pomarico; Bruno Sanguinetti; Clara I. Osorio; Harald Herrmann; Rob Thew

2011-08-29T23:59:59.000Z

258

SYNCHROTRON RADIATION SOURCES  

SciTech Connect (OSTI)

Synchrotron radiation is a very bright, broadband, polarized, pulsed source of light extending from the infrared to the x-ray region. It is an extremely important source of Vacuum Ultraviolet radiation. Brightness is defined as flux per unit area per unit solid angle and is normally a more important quantity than flux alone particularly in throughput limited applications which include those in which monochromators are used. It is well known from classical theory of electricity and magnetism that accelerating charges emit electromagnetic radiation. In the case of synchrotron radiation, relativistic electrons are accelerated in a circular orbit and emit electromagnetic radiation in a broad spectral range. The visible portion of this spectrum was first observed on April 24, 1947 at General Electric's Schenectady facility by Floyd Haber, a machinist working with the synchrotron team, although the first theoretical predictions were by Lienard in the latter part of the 1800's. An excellent early history with references was presented by Blewett and a history covering the development of the utilization of synchrotron radiation was presented by Hartman. Synchrotron radiation covers the entire electromagnetic spectrum from the infrared region through the visible, ultraviolet, and into the x-ray region up to energies of many 10's of kilovolts. If the charged particles are of low mass, such as electrons, and if they are traveling relativistically, the emitted radiation is very intense and highly collimated, with opening angles of the order of 1 milliradian. In electron storage rings there are three possible sources of synchrotron radiation; dipole (bending) magnets; wigglers, which act like a sequence of bending magnets with alternating polarities; and undulators, which are also multi-period alternating magnet systems but in which the beam deflections are small resulting in coherent interference of the emitted light.

HULBERT,S.L.; WILLIAMS,G.P.

1998-07-01T23:59:59.000Z

259

Compact ion accelerator source  

DOE Patents [OSTI]

An ion source includes a conductive substrate, the substrate including a plurality of conductive nanostructures with free-standing tips formed on the substrate. A conductive catalytic coating is formed on the nanostructures and substrate for dissociation of a molecular species into an atomic species, the molecular species being brought in contact with the catalytic coating. A target electrode placed apart from the substrate, the target electrode being biased relative to the substrate with a first bias voltage to ionize the atomic species in proximity to the free-standing tips and attract the ionized atomic species from the substrate in the direction of the target electrode.

Schenkel, Thomas; Persaud, Arun; Kapadia, Rehan; Javey, Ali

2014-04-29T23:59:59.000Z

260

The European Spallation Source  

SciTech Connect (OSTI)

In 2003 the joint European effort to design a European Spallation Source (ESS) resulted in a set of reports, and in May 2009 Lund was agreed to be the ESS site. The ESS Scandinavia office has since then worked on setting all the necessary legal and organizational matters in place so that the Design Update and construction can be started in January 2011, in collaboration with European partners. The Design Update phase is expected to end in 2012, to be followed by a construction phase, with first neutrons expected in 2018-2019.

Lindroos M.; Calaga R.; Bousson S.; Danared H.; Devanz G. et al

2011-04-20T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Photon Source Parameters  

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 - September 2006 TheStevenAdministrationPhotometric Variations asPhoton Source

262

Source Selection Guide  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment of Energy U.S.Improve Emitter Efficiency Under High-Current Operation Source

263

Source Selection Guide  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment of Energy U.S.Improve Emitter Efficiency Under High-Current Operation Source

264

SOURCE SELECTION INFORMATION -  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAXBalancedDepartmentRestrictions onSBBiodiesel | DepartmentSLACofof98-02|10,SOURCE

265

Photon Source Parameters  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar Home Design Passive SolarCenter |Photoinduced electronPhoton Source

266

Sources of tritium  

SciTech Connect (OSTI)

A review of tritium sources is presented. The tritium production and release rates are discussed for light water reactors (LWRs), heavy water reactors (HWRs), high temperature gas cooled reactors (HTGRs), liquid metal fast breeder reactors (LMFBRs), and molten salt breeder reactors (MSBRs). In addition, release rates are discussed for tritium production facilities, fuel reprocessing plants, weapons detonations, and fusion reactors. A discussion of the chemical form of the release is included. The energy producing facilities are ranked in order of increasing tritium production and release. The ranking is: HTGRs, LWRs, LMFBRs, MSBRs, and HWRs. The majority of tritium has been released in the form of tritiated water.

Phillips, J.E.; Easterly, C.E.

1980-12-01T23:59:59.000Z

267

Apparatus And Methods For Launching And Receiving A Broad Wavelength Range Source  

DOE Patents [OSTI]

An apparatus and method for simultaneous detection of N gas species through laser radiation attenuation techniques is disclosed. Each of the N species has a spectral absorption band. N laser sources operate at a wavelength ?N in a spectral absorption band separated by the cutoff wavelength for single-mode transmission. Each laser source corresponds to a gas species and transmits radiation through an optical fiber constructed and arranged to provide single-mode transmission with minimal power loss.

Von Drasek, William A. (Oak Forest, IL); Sonnenfroh, David (North Andover, MA); Allen, Mark G. (Boston, MA); Stafford-Evans, Joy (Andover, MA)

2006-02-28T23:59:59.000Z

268

Federal Funding Sources of Information Sources for Automatic Funding Notices  

E-Print Network [OSTI]

;Federal Funding Sources of Information r Grant Programs & Deadlines q World Health Organization - GrantFederal Funding Sources of Information Sources for Automatic Funding Notices q Catalogue of Federal Domestic Assistance q Grants.Gov q FedBizOpps q The Foundation Center r RFP Bulletin r Philanthropy News

269

Development of a hydraulic borehole seismic source  

SciTech Connect (OSTI)

This report describes a 5 year, $10 million Sandia/Industry project to develop an advanced borehole seismic source for use in oil and gas exploration and production. The development Team included Sandia, Chevron, Amoco, Conoco, Exxon, Raytheon, Pelton, and GRI. The seismic source that was developed is a vertically oriented, axial point force, swept frequency, clamped, reaction-mass vibrator design. It was based on an early Chevron prototype, but the new tool incorporates a number of improvements which make it far superior to the original prototype. The system consists of surface control electronics, a special heavy duty fiber optic wireline and draw works, a cablehead, hydraulic motor/pump module, electronics module, clamp, and axial vibrator module. The tool has a peak output of 7,000 lbs force and a useful frequency range of 5 to 800 Hz. It can operate in fluid filled wells with 5.5-inch or larger casing to depths of 20,000 ft and operating temperatures of 170 C. The tool includes fiber optic telemetry, force and phase control, provisions to add seismic receiver arrays below the source for single well imaging, and provisions for adding other vibrator modules to the tool in the future. The project yielded four important deliverables: a complete advanced borehole seismic source system with all associated field equipment; field demonstration surveys funded by industry showing the utility of the system; industrial sources for all of the hardware; and a new service company set up by their industrial partner to provide commercial surveys.

Cutler, R.P.

1998-04-01T23:59:59.000Z

270

Advanced Photon Source Upgrade Project  

ScienceCinema (OSTI)

Upgrade to Advanced Photon Source announced by Department Of Energy. Read more: http://go.usa.gov/ivZ

Mitchell, John; Gibson, Murray; Young, Linda; Joachimiak, Andrzej

2013-04-19T23:59:59.000Z

271

2005 Conference on Information Sciences and Systems, The Johns Hopkins University, March 1618, 2005 A Linear Daisy Chain with Two Divisible Load Sources  

E-Print Network [OSTI]

load amounts at each source the overall (dual source) solution time curve is equal to the single source18, 2005 A Linear Daisy Chain with Two Divisible Load Sources Theron Lammie and Thomas G. Robertazzi1@ece.sunysb.edu Abstract -- A finite linear daisy chain with divisible load origi- nating from the two boundary stations

Robertazzi, Thomas G.

272

Projection of needs for gamma radiation sources and other radioisotopes and assessment of alternatives for providing radiation sources  

SciTech Connect (OSTI)

Pacific Northwest Laboratory reviewed the projected uses and demands for a variety of nuclear byproducts. Because the major large-scale near-term demand is for gamma irradiation sources, this report concentrates on the needs for gamma sources and evaluates the options for providing the needed material. Projections of possible growth in the irradiation treatment industry indicate that there will be a need for 180 to 320 MCi of /sup 60/Co (including /sup 137/Cs equivalent) in service in the year 2000. The largest current and projected use of gamma irradiation is for the sterilization of medical devices and disposable medical supplies. Currently, 40% of US disposable medical products are treated by irradiation, and within 10 years it is expected that 90% will be treated in this manner. Irradiation treatment of food for destruction of pathogens or parasites, disinfestation, or extension of allowable storage periods is estimated to require an active inventory of 75 MCi of /sup 60/Co-equivalent gamma source in about a decade. 90 refs., 7 figs., 25 tabs.

Ross, W.A.; Jensen, G.A.; Clark, L.L.; Eakin, D.E.; Jarrett, J.H.; Katayama, Y.B.; McKee, R.W.; Morgan, L.G.; Nealey, S.M.; Platt, A.M.; Tingey, G.L.

1989-06-01T23:59:59.000Z

273

Abstract--OpenSPARC is an open source community based around hardware design and experimentation aids  

E-Print Network [OSTI]

]. Techniques used to improve single thread performance often give rise to complex processor designs with poorAbstract--OpenSPARC is an open source community based around hardware design and experimentation designed to improve the execution performance of single thread programs by exploiting instruction level

Torrellas, Josep

274

Infrared source test  

SciTech Connect (OSTI)

The purpose of the Infrared Source Test (IRST) is to demonstrate the ability to track a ground target with an infrared sensor from an airplane. The system is being developed within the Advance Technology Program`s Theater Missile Defense/Unmanned Aerial Vehicle (UAV) section. The IRST payload consists of an Amber Radiance 1 infrared camera system, a computer, a gimbaled mirror, and a hard disk. The processor is a custom R3000 CPU board made by Risq Modular Systems, Inc. for LLNL. The board has ethernet, SCSI, parallel I/O, and serial ports, a DMA channel, a video (frame buffer) interface, and eight MBytes of main memory. The real-time operating system VxWorks has been ported to the processor. The application code is written in C on a host SUN 4 UNIX workstation. The IRST is the result of a combined effort by physicists, electrical and mechanical engineers, and computer scientists.

Ott, L.

1994-11-15T23:59:59.000Z

275

Multiple source heat pump  

DOE Patents [OSTI]

A heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating a fluid in heat exchange relationship with a refrigerant fluid, at least three refrigerant heat exchangers, one for effecting heat exchange with the fluid, a second for effecting heat exchange with a heat exchange fluid, and a third for effecting heat exchange with ambient air; a compressor for compressing the refrigerant; at least one throttling valve connected at the inlet side of a heat exchanger in which liquid refrigerant is vaporized; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circuit and pump for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and directional flow of refrigerant therethrough for selecting a particular mode of operation. Also disclosed are a variety of embodiments, modes of operation, and schematics therefor.

Ecker, Amir L. (Duncanville, TX)

1983-01-01T23:59:59.000Z

276

Single axioms for Boolean algebra.  

SciTech Connect (OSTI)

Explicit single axioms are presented for Boolean algebra in terms of (1) the Sheffer stroke; (2) disjunction and negation; (3) disjunction, conjunction, and negation; and (4) disjunction, conjunction, negation, 0, and 1. It was previously known that single axioms exist for these systems, but the procedures to generate them are exponential, producing huge equations. Automated deduction techniques were applied to find axioms of lengths 105, 131, 111, and 127, respectively, each with six variables.

McCune, W.

2000-06-30T23:59:59.000Z

277

Positron source position sensing detector and electronics  

DOE Patents [OSTI]

A positron source, position sensing device, particularly with medical applications, in which positron induced gamma radiation is detected using a ring of stacked, individual scintillation crystals, a plurality of photodetectors, separated from the scintillation crystals by a light guide, and high resolution position interpolation electronics. Preferably the scintillation crystals are several times more numerous than the photodetectors with each crystal being responsible for a single scintillation event from a received gamma ray. The light guide will disperse the light emitted from gamma ray absorption over several photodetectors. Processing electronics for the output of the photodetectors resolves the location of the scintillation event to a fraction of the dimension of each photodetector. Because each positron absorption results in two 180.degree. oppositely traveling gamma rays, the detection of scintillation in pairs permits location of the positron source in a manner useful for diagnostic purposes. The processing electronics simultaneously responds to the outputs of the photodetectors to locate the scintillations to the source crystal. While it is preferable that the scintillation crystal include a plurality of stacked crystal elements, the resolving power of the processing electronics is also applicable to continuous crystal scintillators.

Burnham, Charles A. (South Essex, MA); Bradshaw, Jr., John F. (Winthrop, MA); Kaufman, David E. (Brockton, MA); Chesler, David A. (Newton Highlands, MA); Brownell, Gordon L. (Cambridge, MA)

1985-01-01T23:59:59.000Z

278

Single crystal Processing and magnetic properties of gadolinium nickel  

SciTech Connect (OSTI)

GdNi is a rare earth intermetallic material that exhibits very interesting magnetic properties. Spontaneous magnetostriction occurs in GdNi at T{sub C}, on the order of 8000ppm strain along the c-axis and only until very recently the mechanism causing this giant magnetostriction was not understood. In order to learn more about the electronic and magnetic structure of GdNi, single crystals are required for anisotropic magnetic property measurements. Single crystal processing is quite challenging for GdNi though since the rare-earth transition-metal composition yields a very reactive intermetallic compound. Many crystal growth methods are pursued in this study including crucible free methods, precipitation growths, and specially developed Bridgman crucibles. A plasma-sprayed Gd{sub 2}O{sub 3} W-backed Bridgman crucible was found to be the best means of GdNi single crystal processing. With a source of high-quality single crystals, many magnetization measurements were collected to reveal the magnetic structure of GdNi. Heat capacity and the magnetocaloric effect are also measured on a single crystal sample. The result is a thorough report on high quality single crystal processing and the magnetic properties of GdNi.

Shreve, Andrew John [Ames Laboratory

2012-11-02T23:59:59.000Z

279

Production of single-walled carbon nanotube grids  

DOE Patents [OSTI]

A method of forming a nanotube grid includes placing a plurality of catalyst nanoparticles on a grid framework, contacting the catalyst nanoparticles with a gas mixture that includes hydrogen and a carbon source in a reaction chamber, forming an activated gas from the gas mixture, heating the grid framework and activated gas, and controlling a growth time to generate a single-wall carbon nanotube array radially about the grid framework. A filter membrane may be produced by this method.

Hauge, Robert H; Xu, Ya-Qiong; Pheasant, Sean

2013-12-03T23:59:59.000Z

280

Energy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors  

E-Print Network [OSTI]

, New Jersey, USA Dept. of ECE, Polytechnic Inst. of NYU, New York, USA Abstract--This work addresses1 Energy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors P. Castiglione, O the problem of energy alloca- tion over source processing and transmission for a single energy- harvesting

Zemen, Thomas

Note: This page contains sample records for the topic "largest single source" 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

Energy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors  

E-Print Network [OSTI]

, New Jersey, USA Dept. of ECE, Polytechnic Inst. of NYU, New York, USA Abstract--This work addressesEnergy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors P. Castiglione, O the problem of energy allo- cation over source compression and transmission for a single energy

Simeone, Osvaldo

282

Development and characterization of a novel compact x-ray source  

E-Print Network [OSTI]

with values reported in the literature. It was necessary, however, to prepare the samples using single elements to reduce matrix affects and lessen effects of overlapping peaks. In general the x-ray source shows potential as a portable x-ray source that may...

Woo, Ronald Yut

1996-01-01T23:59:59.000Z

283

Blind Equalization via Approximate Maximum Likelihood Source Seungjin CHOI x1 and Andrzej CICHOCKI y  

E-Print Network [OSTI]

Blind Equalization via Approximate Maximum Likelihood Source Separation Seungjin CHOI x1, RIKEN 2-1 Hirosawa, Wako-shi Saitama 351-0198, JAPAN Abstract Blind equalization of single input multiple output (SIMO) FIR channels can be refor- mulated as the problem of blind source separation

Choi, Seungjin

284

Development of New Three-Level Current-Source Inverter for Grid Connected Photovoltaic System  

E-Print Network [OSTI]

Development of New Three-Level Current-Source Inverter for Grid Connected Photovoltaic System-phase three-level current source inverter (CSI) driven by a single gate-drive power supply in both chopper and inverter, and its feasibility on grid connected photovoltaic system application. Using this new topology

Fujimoto, Hiroshi

285

Poynting-vector based method for determining the bearing and location of electromagnetic sources  

DOE Patents [OSTI]

A method and apparatus is utilized to determine the bearing and/or location of sources, such as, alternating current (A.C.) generators and loads, power lines, transformers and/or radio-frequency (RF) transmitters, emitting electromagnetic-wave energy for which a Poynting-Vector can be defined. When both a source and field sensors (electric and magnetic) are static, a bearing to the electromagnetic source can be obtained. If a single set of electric (E) and magnetic (B) sensors are in motion, multiple measurements permit location of the source. The method can be extended to networks of sensors allowing determination of the location of both stationary and moving sources.

Simons, David J. (Modesto, CA); Carrigan, Charles R. (Tracy, CA); Harben, Philip E. (Livermore, CA); Kirkendall, Barry A. (Golden, CO); Schultz, Craig A. (Danville, CA)

2008-10-21T23:59:59.000Z

286

Study of narrowband single photon emitters in polycrystalline diamond films  

SciTech Connect (OSTI)

Quantum information processing and integrated nanophotonics require robust generation of single photon emitters on demand. In this work, we demonstrate that diamond films grown on a silicon substrate by microwave plasma chemical vapor deposition can host bright, narrowband single photon emitters in the visiblenear infra-red spectral range. The emitters possess fast lifetime (?several ns), absolute photostability, and exhibit full polarization at excitation and emission. Pulsed and continuous laser excitations confirm their quantum behaviour at room temperature, while low temperature spectroscopy is performed to investigate inhomogeneous broadening. Our results advance the knowledge of solid state single photon sources and open pathways for their practical implementation in quantum communication and quantum information processing.

Sandstrom, Russell G.; Shimoni, Olga; Martin, Aiden A.; Aharonovich, Igor, E-mail: igor.aharonovich@uts.edu.au [School of Physics and Advanced Materials, University of Technology, Sydney, P.O. Box 123, Broadway, New South Wales 2007 (Australia)

2014-11-03T23:59:59.000Z

287

Coherent Control of a Single Silicon-29 Nuclear Spin Qubit  

E-Print Network [OSTI]

Magnetic fluctuations caused by the nuclear spins of a host crystal are often the leading source of decoherence for many types of solid-state spin qubit. In group-IV materials, the spin-bearing nuclei are sufficiently rare that it is possible to identify and control individual host nuclear spins. This work presents the first experimental detection and manipulation of a single $^{29}$Si nuclear spin. The quantum non-demolition (QND) single-shot readout of the spin is demonstrated, and a Hahn echo measurement reveals a coherence time of $T_2 = 6.3(7)$ ms - in excellent agreement with bulk experiments. Atomistic modeling combined with extracted experimental parameters provides possible lattice sites for the $^{29}$Si atom under investigation. These results demonstrate that single $^{29}$Si nuclear spins could serve as a valuable resource in a silicon spin-based quantum computer.

Jarryd J. Pla; Fahd A. Mohiyaddin; Kuan Y. Tan; Juan P. Dehollain; Rajib Rahman; Gerhard Klimeck; David N. Jamieson; Andrew S. Dzurak; Andrea Morello

2014-08-06T23:59:59.000Z

288

A Framework for the Systematic Collection of Open Source Intelligence  

SciTech Connect (OSTI)

Following legislative directions, the Intelligence Community has been mandated to make greater use of Open Source Intelligence (OSINT). Efforts are underway to increase the use of OSINT but there are many obstacles. One of these obstacles is the lack of tools helping to manage the volume of available data and ascertain its credibility. We propose a unique system for selecting, collecting and storing Open Source data from the Web and the Open Source Center. Some data management tasks are automated, document source is retained, and metadata containing geographical coordinates are added to the documents. Analysts are thus empowered to search, view, store, and analyze Web data within a single tool. We present ORCAT I and ORCAT II, two implementations of the system.

Pouchard, Line Catherine [ORNL] [ORNL; Trien, Joseph P [ORNL] [ORNL; Dobson, Jonathan D [ORNL] [ORNL

2009-01-01T23:59:59.000Z

289

Alternative energy sources in Iran: the state-of-the-art  

SciTech Connect (OSTI)

Iran, the country well known for its enormous proven reserves of oil (fourth largest in the world), natural gas (second largest), and coal (considerable) is also one of the most favourable countries for utilization of solar, wind and other alternative energy sources. Depsite an average of 5 KWh/m/sup 2//day of solar energy over a large land area, and sites with frequent wind velocities of 7 m/s, very little attention has been paid to non-fossil fuels. Petroleum, on the other hand, has not only been the main fuel for Iran, but has also provided the country with its major revenue. Furthermore, the low cost of oil and gas has pushed the alternative energy sources into an unfavorable position. The main question is, for how long can such an energy picture go on. To answer this important question, the authors have attempted, firstly, to draw a concise energy picture (fuel and power production, distribution, demands and policies), and secondly, to list the potentials of the alternative energy sources. The paper also includes a critical review of the work done and the programs in connection with alternative energies in Iran.

Sabzevari, A.; Yaghoubi, M.A.

1983-12-01T23:59:59.000Z

290

Single atom impurity in a single molecular transistor  

SciTech Connect (OSTI)

The influence of an impurity atom on the electrostatic behaviour of a Single Molecular Transistor was investigated through Ab-initio calculations in a double-gated geometry. The charge stability diagram carries unique signature of the position of the impurity atom in such devices which together with the charging energy of the molecule could be utilised as an electronic fingerprint for the detection of such impurity states in a nano-electronic device. The two gated geometry allows additional control over the electrostatics as can be seen from the total energy surfaces (for a specific charge state), which is sensitive to the positions of the impurity. These devices which are operational at room temperature can provide significant advantages over the conventional silicon based single dopant devices functional at low temperature. The present approach could be a very powerful tool for the detection and control of individual impurity atoms in a single molecular device and for applications in future molecular electronics.

Ray, S. J., E-mail: ray.sjr@gmail.com [Institute of Materials Science, Technical University of Darmstadt, Alarich-Weiss Str. 2, 64287 Darmstadt (Germany)

2014-10-21T23:59:59.000Z

291

In-Source Fragmentation and the Sources of Partially Tryptic...  

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

using three biological samples, including a standard protein mixture, a mouse brain tissue homogenate, and a mouse plasma sample. Since the in-source fragments of a...

292

Integrated Synthesis of the Permian Basin: Data and Models for Recovering Existing and Undiscovered Oil Resources from the Largest Oil-Bearing Basin in the U.S.  

SciTech Connect (OSTI)

Large volumes of oil and gas remain in the mature basins of North America. This is nowhere more true than in the Permian Basin of Texas and New Mexico. A critical barrier to recovery of this vast remaining resource, however, is information. Access to accurate geological data and analyses of the controls of hydrocarbon distribution is the key to the knowledge base as well as the incentives needed by oil and gas companies. The goals of this project were to collect, analyze, synthesize, and deliver to industry and the public fundamental information and data on the geology of oil and gas systems in the Permian Basin. This was accomplished in two ways. First we gathered all available data, organized it, and placed it on the web for ready access. Data include core analysis data, lists of pertinent published reports, lists of available cores, type logs, and selected PowerPoint presentations. We also created interpretive data such as type logs, geological cross sections, and geological maps and placed them in a geospatially-registered framework in ARC/GIS. Second, we created new written syntheses of selected reservoir plays in the Permian basin. Although only 8 plays were targeted for detailed analysis in the project proposal to DOE, 14 were completed. These include Ellenburger, Simpson, Montoya, Fusselman, Wristen, Thirtyone, Mississippian, Morrow, Atoka, Strawn, Canyon/Cisco, Wolfcamp, Artesia Group, and Delaware Mountain Group. These fully illustrated reports include critical summaries of published literature integrated with new unpublished research conducted during the project. As such these reports provide the most up-to-date analysis of the geological controls on reservoir development available. All reports are available for download on the project website and are also included in this final report. As stated in our proposal, technology transfer is perhaps the most important component of the project. In addition to providing direct access to data and reports through the web, we published 29 papers dealing with aspects of Permian Basin and Fort Worth Basin Paleozoic geology, and gave 35 oral and poster presentations at professional society meetings, and 116 oral and poster presentations at 10 project workshops, field trips, and short courses. These events were attended by hundreds of scientists and engineers representing dozens of oil and gas companies. This project and the data and interpretations that have resulted from it will serve industry, academic, and public needs for decades to come. It will be especially valuable to oil and gas companies in helping to better identify opportunities for development and exploration and reducing risk. The website will be continually added to and updated as additional data and information become available making it a long term source of key information for all interested in better understanding the Permian Basin.

John Jackson; Katherine Jackson

2008-09-30T23:59:59.000Z

293

INVESTIGATION Coding Gene Single Nucleotide Polymorphism  

E-Print Network [OSTI]

INVESTIGATION Coding Gene Single Nucleotide Polymorphism Mapping and Quantitative Trait Loci QTL detection single nucleotide polymorphisms (SNP) reproduction Salvelinus fontinalis Linkages maps such as microsatellites and single nucleotide polymorphisms (SNPs). Also, compared with previ- ous methods based

Bernatchez, Louis

294

Portable Source Identification Device  

SciTech Connect (OSTI)

U.S. Customs and Border Protection (CBP) is the primary enforcement agency protecting the nations ports of entry. CBP is enhancing its capability to interdict the illicit import of nuclear and radiological materials and devices that may be used by terrorists. Pacific Northwest National Laboratory (PNNL) is providing scientific and technical support to CBP in their goal to enable rapid deployment of nuclear and radiation detection systems at U. S. ports of entry to monitor 100% of the incoming international traffic and cargo while not adversely impacting the operations or throughput of the ports. As the deployment of radiation detection systems proceeds, there is a need to adapt the baseline radiation portal monitor (RPM) system technology to operations at these diverse ports of entry. When screening produces an alarm in the primary inspection RPM, the alarming vehicle is removed from the flow of commerce and the alarm is typically confirmed in a secondary inspection RPM. The portable source identification device (PSID) is a radiation sensor panel (RSP), based on thallium-doped sodium iodide (NaI(Tl)) scintillation detector and gamma spectroscopic analysis hardware and software, mounted on a scissor lift on a small truck. The lift supports a box containing a commercial off-the-shelf (COTS) sodium iodide detector that provides real-time isotopic identification, including neutron detectors to interdict Weapons of Mass Destruction (WMD) and radiation dispersion devices (RDD). The scissor lift will lower the detectors to within a foot off the ground and raise them to approximately 24 feet in the air, allowing a wide vertical scanning range.

Andersen, Eric S.; Samuel, Todd J.; Gervais, Kevin L.

2005-08-01T23:59:59.000Z

295

Constricted glow discharge plasma source  

DOE Patents [OSTI]

A constricted glow discharge chamber and method are disclosed. The polarity and geometry of the constricted glow discharge plasma source is set so that the contamination and energy of the ions discharged from the source are minimized. The several sources can be mounted in parallel and in series to provide a sustained ultra low source of ions in a plasma with contamination below practical detection limits. The source is suitable for applying films of nitrides such as gallium nitride and oxides such as tungsten oxide and for enriching other substances in material surfaces such as oxygen and water vapor, which are difficult process as plasma in any known devices and methods. The source can also be used to assist the deposition of films such as metal films by providing low-energy ions such as argon ions.

Anders, Andre (Albany, CA); Anders, Simone (Albany, CA); Dickinson, Michael (San Leandro, CA); Rubin, Michael (Berkeley, CA); Newman, Nathan (Winnetka, IL)

2000-01-01T23:59:59.000Z

296

Feasibility study of broadband efficient ''water window'' source  

SciTech Connect (OSTI)

We demonstrate a table-top broadband emission water window source based on laser-produced high-Z plasmas. Resonance emission from multiply charged ions merges to produce intense unresolved transition arrays (UTAs) in the 2-4 nm region, extending below the carbon K edge (4.37 nm). Arrays resulting from n=4-n=4 transitions are overlaid with n=4-n=5 emission and shift to shorter wavelength with increasing atomic number. An outline of a microscope design for single-shot live cell imaging is proposed based on a bismuth plasma UTA source, coupled to multilayer mirror optics.

Higashiguchi, Takeshi; Yugami, Noboru [Department of Advanced Interdisciplinary Sciences, Center for Optical Research and Education (CORE), and Optical Technology Innovation Center (OpTIC), Utsunomiya University, Yoto 7-1-2, Utsunomiya, Tochigi 321-8585 (Japan); Japan Science and Technology Agency, CREST, 4-1-8 Honcho, Kanagawa, Saitama 332-0012 (Japan); Otsuka, Takamitsu [Department of Advanced Interdisciplinary Sciences, Center for Optical Research and Education (CORE), and Optical Technology Innovation Center (OpTIC), Utsunomiya University, Yoto 7-1-2, Utsunomiya, Tochigi 321-8585 (Japan); Jiang Weihua [Department of Electrical Engineering, Nagaoka University of Technology, Kami-tomiokamachi 1603-1, Nagaoka, Niigata 940-2188 (Japan); Endo, Akira [Research Institute for Science and Engineering, Waseda University, Okubo 3-4-1, Shinjuku, Tokyo 169-8555 (Japan); Li Bowen; Dunne, Padraig; O'Sullivan, Gerry [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland)

2012-01-02T23:59:59.000Z

297

Single particle-induced latchup  

SciTech Connect (OSTI)

This paper presents an up-to-date overview of the single-event latchup (SEL) hard failure mode encountered in electronic device applications involving heavy ion environment. This phenomenon is specific to CMOS technology. Single-event latchup is discussed after a short description of the effects induced by the interaction of a heavy ion with silicon. Understanding these effects is necessary to understand the different failures. This paper includes a description of the latchup phenomenon and the different triggering modes, reviews of models and hardening solutions, and finally presents new developments in simulation approaches.

Bruguier, G.; Palau, J.M. [Univ. Montpellier II (France). Centre d`Electronique de Montpellier] [Univ. Montpellier II (France). Centre d`Electronique de Montpellier

1996-04-01T23:59:59.000Z

298

Linac Coherent Light Source Overview  

ScienceCinema (OSTI)

Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

None

2013-05-29T23:59:59.000Z

299

Linac Coherent Light Source Overview  

Broader source: Energy.gov [DOE]

Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

300

Alternative Energy Sources Myths and Realities  

E-Print Network [OSTI]

Alternative Energy Sources - Myths and Realities Walterneed to think about alternative energy sources; the worlddepletion of oil? Alternative energy sources can be divided

Youngquist, Walter

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Multi-User MISO Interference Channels with Single-User Detection: Optimality of Beamforming and the Achievable Rate Region  

E-Print Network [OSTI]

For a multi-user interference channel with multi-antenna transmitters and single-antenna receivers, by restricting each transmitter to Gaussian input and each receiver to a single-user detector, computing the largest achievable rate region amounts to solving a family of non-convex optimization problems. Recognizing the intrinsic connection between the signal power at the intended receiver and the interference power at the unintended receiver, the original family of non-convex optimization problems is converted into a new family of convex optimization problems. It is shown that, for such interference channels with each receiver implementing single-user detection, transmitter beamforming can achieve all boundary points of the achievable rate region.

Shang, Xiaohu; Poor, H Vincent

2009-01-01T23:59:59.000Z

302

Using X-ray observations to identify the particle acceleration mechanisms in VHE SNRs and "dark" VHE sources  

E-Print Network [OSTI]

Very high energy (VHE) gamma-ray observations have proven to be very successful in localizing Galactic acceleration sites of VHE particles. Observations of shell-type supernova remnants have confirmed that particles are accelerated to VHE energies in supernova blast waves; the interpretation of the gamma-ray data in terms of hadronic or leptonic particle components in these objects relies nevertheless strongly on input from X-ray observations. The largest identified Galactic VHE source class consists of pulsar wind nebulae, as detected in X-rays. Many of the remaining VHE sources remain however unidentified until now. With X-ray observations of these enigmatic "dark" objects one hopes to solve the following questions: What is the astrophysical nature of these sources? Are they predominantly electron or hadron accelerators? And what is their contribution to the overall cosmic ray energy budget? The paper aims to provide an overview over the identification status of the Galactic VHE source population.

G. Phlhofer

2007-10-17T23:59:59.000Z

303

Extreme environmental testing of a rugged correlated photon source  

E-Print Network [OSTI]

Experiments in long distance quantum key distribution have motivated the development of ruggedised single photon sources, capable of producing useful correlations even when removed from the warm, nurturing environment found in most optics laboratories. As part of an ongoing pro- gramme to place such devices into low earth orbit (LEO), we have developed and built a number of rugged single photon sources based on spontaneous parametric downconversion. In order to evalu- ate device reliability, we have subjected our design to various thermal, mechanical and atmospheric stresses. Our results show that while such a device may tolerate launch into orbit, operation in orbit and casual mishandling by graduate students, it is probably unable to survive the forcible disassembly of a launch vehicle at the top of a ball of rapidly expanding and oxidising kerosene and liquid oxygen.

Grieve, James A; Ling, Alexander

2015-01-01T23:59:59.000Z

304

Single-cycle nonlinear optics  

E-Print Network [OSTI]

g l e - C y c l e Nonlinear Optics E. G o u l i e l m a k iSingle-Cycle Nonlinear Optics E. Goulielmakis *, M.D-85748 Garching. Center for X-Ray Optics, Lawrence Berkeley

Goulielmakis, E.; Max-Planck-Institut fur Quantenoptik

2008-01-01T23:59:59.000Z

305

Country Scotland Type Single malt  

E-Print Network [OSTI]

Country Scotland Type Single malt Distillery Aberfeldy Region Highlands Age 12 years ABV 40% Cask, the perfume characteristics become more spicy, with a bitter hint of Seville oranges in a decidedly dry finish. Drying citrus/oak with a gentle spiciness, held in a warm embrace of cigar smoke, and a little vanilla

Izzard, Rob

306

Country Scotland Type Single malt  

E-Print Network [OSTI]

Country Scotland Type Single malt Distillery Jura Region Island Name Prophecy ABV 46 Cask French airport Notes Limited annual release: 10,000 bottles only. Nose Some peat, aniseed, oily, dry, pungent, dried hay, and anise round things out. Palate Smoky and dry, a muscular, powerful Jura with notes

Izzard, Rob

307

Single element laser beam shaper  

DOE Patents [OSTI]

A single lens laser beam shaper for converting laser beams from any spatial profile to a flat-top or uniform spatial profile. The laser beam shaper includes a lens having two aspheric surfaces. The beam shaper significantly simplifies the overall structure in comparison with conventional 2-element systems and therefore provides great ease in alignment and reduction of cost.

Zhang, Shukui (Yorktown, VA); Michelle D. Shinn (Newport News, VA)

2005-09-13T23:59:59.000Z

308

Energy sources: conservation and renewables  

SciTech Connect (OSTI)

The physics community conducted a summer study at Princeton University on the efficient use of energy during the summer of 1974; the AIP book containing this study (AIP 25, 1975) has been the largest selling AIP Conferences Series book to date. The subject 1985 AIP conference proceedings is published under the following headings: technical progress and policy options (5 chapters); energy and buildings (7 chapters), windows, lighting, appliances, and HVAC (5 chapters); industrial and automotive (2 chapters), and electricity and renewables (9 chapters). Also, 10 appendices relevant to the subject are included. A separate abstract was prepared for each of the 28 chapters for the Energy Data Base (EDB); 10 are included in Energy Research Abstracts (ERA) and 21 in Energy Abstracts for Policy Analysis (EAPA).

Hafemeister, D.; Kelly, H.; Levi, B. (eds.)

1985-01-01T23:59:59.000Z

309

Hollow electrode plasma excitation source  

DOE Patents [OSTI]

A plasma source incorporates a furnace as a hollow anode, while a coaxial cathode is disposed therewithin. The source is located in a housing provided with an ionizable gas such that a glow discharge is produced between anode and cathode. Radiation or ionic emission from the glow discharge characterizes a sample placed within the furnace and heated to elevated temperatures. 5 figs.

Ballou, N.E.

1992-04-14T23:59:59.000Z

310

BSTBacterial Source Tracking Conference Proceedings  

E-Print Network [OSTI]

BSTBacterial Source Tracking Conference Proceedings 2012 Bacterial Source Tracking State Conference Conference Proceedings Prepared by: Lucas Gregory, Texas Water Resources Institute Courtney Smith of the Science Conference Texas Water Resources Institute TR-427 June 2012 #12;#12;Texas Water Resources

311

Enhanced single-photon emission from a quantum dot in a micropost microcavity  

E-Print Network [OSTI]

We demonstrate a single-photon source based on a quantum dot in a micropost microcavity that exhibits a large Purcell factor together with a small multi-photon probability. For a quantum dot on resonance with the cavity, the spontaneous emission rate is increased by a factor of five, while the probability to emit two or more photons in the same pulse is reduced to 2% compared to a Poisson-distributed source of the same intensity. In addition to the small multi-photon probability, such a strong Purcell effect is important in a single-photon source for improving the photon outcoupling efficiency and the single-photon generation rate, and for bringing the emitted photon pulses closer to the Fourier transform limit.

Jelena Vuckovic; David Fattal; Charles Santori; Glenn Solomon; Yoshihisa Yamamoto

2003-07-03T23:59:59.000Z

312

Improving noise threshold for optical quantum computing with the EPR photon source  

SciTech Connect (OSTI)

We show that the noise threshold for optical quantum computing obtained by Varnava et al. [Phys. Rev. Lett. 100, 060502 (2008)] can be significantly improved by replacing the single-photon source with the Einstein-Podolsky-Rosen (EPR) type of photon source. In this implementation, for an EPR source that emits either nothing (a vacuum state) or a perfect EPR state with probability {eta}{sub s}, the detector efficiency {eta}{sub d} is required to be larger than 50% and the source efficiency {eta}{sub s} can be an arbitrarily small positive number. We also present the error threshold for a more general noise model including additional photon absorption and show that the threshold still compares favorably with the previous results. We discuss several physical setups for realization of the required EPR photon source, including a photon emitter in a single-atom cavity.

Wei, Z.-H. [Centre for Quantum Technologies, National University of Singapore, Singapore 117542 (Singapore); Department of Physics and MCTP, University of Michigan, Ann Arbor, Michigan 48109 (United States); Han, Y.-J.; Duan, L.-M. [Department of Physics and MCTP, University of Michigan, Ann Arbor, Michigan 48109 (United States); Oh, C. H. [Centre for Quantum Technologies, National University of Singapore, Singapore 117542 (Singapore)

2010-06-15T23:59:59.000Z

313

Sealed source peer review plan  

SciTech Connect (OSTI)

Sealed sources are known quantities of radioactive materials that have been encapsulated in quantities that produce known radiation fields. Sealed sources have multiple uses ranging from instrument calibration sources to sources that produce radiation fields for experimental applications. The Off-Site Source Recovery (OSR) Project at Los Alamos National Laboratory (LANL), created in 1999, under the direction of the Waste Management Division of the U.S. Department of Energy (DOE) Albuquerque has been assigned the responsibility to recover and manage excess and unwanted radioactive sealed sources from the public and private sector. LANL intends to ship drums containing qualified sealed sources to the Waste Isolation Pilot Plant (WIPP) for disposal. Prior to shipping, these drums must be characterized with respect to radiological content and other parameters. The U. S. Environmental Protection Agency (EPA) requires that ten radionulcides be quantified and reported for every container of waste to be disposed in the WIPP. The methods traditionally approved by the EPA include non-destructive assay (NDA) in accordance with Appendix A of the Contact-Handled Transuranic Waste Acceptance Criteria for the Waste Isolation Pilot Plant (DOE, 2002) (CH WAC). However, because of the nature and pedigree of historical records for sealed sources and the technical infeasibility of performing NDA on these sources, LANL proposes to characterize the content of these waste drums using qualified existing radiological data in lieu of direct measurement. This plan describes the process and documentation requirements for the use of the peer review process to qualify existing data for sealed radiological sources in lieu of perfonning radioassay. The peer review process will be performed in accordance with criteria provided in 40 CFR {section} 194.22 which specifies the use of the NUREG 1297 guidelines. The plan defines the management approach, resources, schedule, and technical requirements for the subject peer review.

Feldman, Alexander [Los Alamos National Laboratory; Leonard, Lee [RETIRED; Burns, Ron [CONTRACTOR

2009-01-01T23:59:59.000Z

314

Environmental Technology Verification of Mobile Sources Control...  

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

Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

315

Multiple intrinsically identical single photon emitters in the solid-state  

E-Print Network [OSTI]

Emitters of indistinguishable single photons are crucial for the growing field of quantum technologies. To realize scalability and increase the complexity of quantum optics technologies, multiple independent yet identical single photon emitters are also required. However typical solid-state single photon sources are inherently dissimilar, necessitating the use of electrical feedback or optical cavities to improve spectral overlap between distinct emitters. Here, we demonstrate bright silicon-vacancy (SiV-) centres in low-strain bulk diamond which intrinsically show spectral overlap of up to 91% and near transform-limited excitation linewidths. Our results have impact upon the application of single photon sources for quantum optics and cryptography, and the production of next generation fluorophores for bio-imaging.

Lachlan J. Rogers; Kay D. Jahnke; T. Teraji; Luca Marseglia; Christoph. Mller; Boris Naydenov; Hardy Schauffert; C. Kranz; Junichi Isoya; Liam P. McGuinness; Fedor Jelezko

2014-06-05T23:59:59.000Z

316

Single lens laser beam shaper  

DOE Patents [OSTI]

A single lens bullet-shaped laser beam shaper capable of redistributing an arbitrary beam profile into any desired output profile comprising a unitary lens comprising: a convex front input surface defining a focal point and a flat output portion at the focal point; and b) a cylindrical core portion having a flat input surface coincident with the flat output portion of the first input portion at the focal point and a convex rear output surface remote from the convex front input surface.

Liu, Chuyu (Newport News, VA); Zhang, Shukui (Yorktown, VA)

2011-10-04T23:59:59.000Z

317

Diversity employment and recruitment sources  

SciTech Connect (OSTI)

Effective human resources management has been identified as one of four critical success factors in the Department of Energy Strategic Plan. The Plan states relative to this factor: ``The Department seeks greater alignment of resources with agency priorities and increased diversification of the workforce, including gender, ethnicity, age, and skills. This diversification will bring new thinking and perspectives that heretofore have not had a voice in departmental decision-making.`` This Guide has been developed as a key tool to assist Department of Energy management and administrative staff in achieving Goal 2 of this critical success factor, which is to ``Ensure a diverse and talented workforce.`` There are numerous sources from which to recruit minorities, women and persons with disabilities. Applying creativity and proactive effort, using traditional and non-traditional approaches, and reaching out to various professional, academic and social communities will increase the reservoir of qualified candidates from which to make selections. In addition, outreach initiatives will undoubtedly yield further benefits such as a richer cultural understanding and diversity awareness. The resource listings presented in this Guide are offered to encourage active participation in the diversity recruitment process. This Guide contains resource listings by state for organizations in the following categories: (1) African American Recruitment Sources; (2) Asian American/Pacific Islander Recruitment Sources; (3) Hispanic Recruitment Sources; (4) Native American/Alaskan Native Recruitment Sources; (5) Persons with Disabilities Recruitment Sources; and (6) Women Recruitment Sources.

Not Available

1994-08-01T23:59:59.000Z

318

International Data on Radiological Sources  

SciTech Connect (OSTI)

ABSTRACT The mission of radiological dispersal device (RDD) nuclear forensics is to identify the provenance of nuclear and radiological materials used in RDDs and to aid law enforcement in tracking nuclear materials and routes. The application of databases to radiological forensics is to match RDD source material to a source model in the database, provide guidance regarding a possible second device, and aid the FBI by providing a short list of manufacturers and distributors, and ultimately to the last legal owner of the source. The Argonne/Idaho National Laboratory RDD attribution database is a powerful technical tool in radiological forensics. The database (1267 unique vendors) includes all sealed sources and a device registered in the U.S., is complemented by data from the IAEA Catalogue, and is supported by rigorous in-lab characterization of selected sealed sources regarding physical form, radiochemical composition, and age-dating profiles. Close working relationships with global partners in the commercial sealed sources industry provide invaluable technical information and expertise in the development of signature profiles. These profiles are critical to the down-selection of potential candidates in either pre- or post- event RDD attribution. The down-selection process includes a match between an interdicted (or detonated) source and a model in the database linked to one or more manufacturers and distributors.

Martha Finck; Margaret Goldberg

2010-07-01T23:59:59.000Z

319

High-brightness single photon source from a quantum dot in a directional-emission  

E-Print Network [OSTI]

, Stanford University, Stanford CA 94305 2 Sony Corporation, Shinagawa-ku, Tokyo, Japan, 141-0001 3, Stanford University, Stanford CA 94305 a mitsuru.toishi@jp.sony.com, b englund@fas.harvard.edu, c jela

Vuckovic, Jelena

320

Stability estimates for an inverse source problem of Helmholtz's equation from a single Cauchy  

E-Print Network [OSTI]

/MEG) problems [9, 21, 28], pollution in the envi- ronment [15, 24], photo- and thermo-acoustic tomography [4, 31

El Hajj, Ahmad

Note: This page contains sample records for the topic "largest single source" 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

A 7-Level Single DC Source Cascaded H-Bridge Multilevel Inverters Control  

E-Print Network [OSTI]

vehicles or hybrid electric vehicles where each phase of the inverter can be implemented using only HE electric vehicles (EV) and Hybrid Electric Vehicles (HEV) currently seem to constitute, the motor drive, comprising the electric motor, the power converter, and the electronic controller

Paris-Sud XI, Université de

322

Component acquisition and single-source vendor management strategy in a defense application  

E-Print Network [OSTI]

Building an aircraft carrier is one of the most complex manufacturing undertakings in the world. Each component must be designed, tested and manufactured to not only Northrop Grumman Shipbuilding's (NGSB) exceptionally ...

Hammer, Lory (Lory Yeamans)

2009-01-01T23:59:59.000Z

323

University of Toronto Business Affairs Division -Procurement Services Sole or Single Source Certification  

E-Print Network [OSTI]

, financial services or investment managers To purchase real property, subscriptions or original works of art Tendering would interfere with security, order or protection of human, animal, plant life or health The subject matter of the procurement is financed by an international cooperation organization

Prodiæ, Aleksandar

324

Single particle characterization, source apportionment, and aging effects of ambient aerosols in Southern California  

E-Print Network [OSTI]

of scale, in Air Pollution and Health in Rapidly Developingfor particulate air pollution health standards, Aerosolfor particulate air pollution health standards, Aerosol

Shields, Laura Grace

2008-01-01T23:59:59.000Z

325

Identification of Contaminant Sources in Enclosed Spaces by a Single Tengfei Zhang, Qingyan Chen*  

E-Print Network [OSTI]

Air, 17(6), 439-449. #12;2 occupants in enclosed environments from infectious diseases or chemical, Qingyan Chen* Air Transportation Center of Excellence for Airliner Cabin Environmental Research (ACER * Corresponding author email: yanchen@purdue.edu Abstract To protect occupants from infectious diseases

Chen, Qingyan "Yan"

326

Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source  

SciTech Connect (OSTI)

Einstein-Podolsky-Rosen (EPR) entanglement is a criterion that is more demanding than just certifying entanglement. We theoretically and experimentally analyze the low-resource generation of bipartite continuous-variable entanglement, as realized by mixing a squeezed mode with a vacuum mode at a balanced beam splitter, i.e., the generation of so-called vacuum-class entanglement. We find that in order to observe EPR entanglement the total optical loss must be smaller than 33.3 %. However, arbitrarily strong EPR entanglement is generally possible with this scheme. We realize continuous-wave squeezed light at 1550 nm with up to 9.9 dB of nonclassical noise reduction, which is the highest value at a telecom wavelength so far. Using two phase-controlled balanced homodyne detectors we observe an EPR covariance product of 0.502{+-}0.006<1, where 1 is the critical value. We discuss the feasibility of strong Gaussian entanglement and its application for quantum key distribution in a short-distance fiber network.

Eberle, Tobias [Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut) and Institut fuer Gravitationsphysik der Leibniz Universitaet Hannover, Callinstrasse 38, D-30167 Hannover (Germany); Centre for Quantum Engineering and Space-Time Research - QUEST, Leibniz Universitaet Hannover, Welfengarten 1, D-30167 Hannover (Germany); Haendchen, Vitus; Schnabel, Roman [Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut) and Institut fuer Gravitationsphysik der Leibniz Universitaet Hannover, Callinstrasse 38, D-30167 Hannover (Germany); Duhme, Joerg [Centre for Quantum Engineering and Space-Time Research - QUEST, Leibniz Universitaet Hannover, Welfengarten 1, D-30167 Hannover (Germany); Institut fuer Theoretische Physik der Leibniz Universitaet Hannover, Appelstrasse 2, D-30167 Hannover (Germany); Franz, Torsten; Werner, Reinhard F. [Institut fuer Theoretische Physik der Leibniz Universitaet Hannover, Appelstrasse 2, D-30167 Hannover (Germany)

2011-05-15T23:59:59.000Z

327

An analysis of incentive strategies for single-source suppliers to drive cost reduction  

E-Print Network [OSTI]

An organization's decision on which aspects of its operations to outsource represents a key, strategic issue that should be based on maximizing performance throughout the entire value chain. In certain instances strategic ...

Resch, Kevin (Kevin Scott)

2011-01-01T23:59:59.000Z

328

Titanium Diboride Thin Films by Low-Temperature Chemical Vapor Deposition from the Single Source Precursor  

E-Print Network [OSTI]

metallic ceramic whose properties surpass those of transition metal nitride and carbide counterparts:1, and excellent corrosion resistance toward molten metals. In addition, it has a low electrical resistivity of 6 µ

Girolami, Gregory S.

329

Single Microphone Blind Audio Source Separation Using Short+Long Term AR Modeling  

E-Print Network [OSTI]

due to the impact of the propagation environment that can introduce the problem of reverberation learn the EURECOM's research is partially supported by its industrial partners: BMW, Cisco Systems

Gesbert, David

330

Pure single photon generation by type-I PDC with backward-wave amplification  

E-Print Network [OSTI]

We explore a promising method of generating pure heralded single photons. Our approach is based on parametric downconversion in a periodically-poled waveguide. However, unlike conventional downconversion sources, the photon pairs are counter-propagating: one travels with the pump beam in the forward direction while the other is backpropagating towards the laser source. Our calculations reveal that these downconverted two-photon states carry minimal spectral correlations within each photon-pair. This approach offers the possibility to employ a new range of downconversion processes and materials like PPLN (previously considered unsuitable due to their unfavorable phasematching properties) to herald pure single photons over a broad frequency range.

Christ, A; Mosley, P J; Silberhorn, C

2009-01-01T23:59:59.000Z

331

Pure single photon generation by type-I PDC with backward-wave amplification  

E-Print Network [OSTI]

We explore a promising method of generating pure heralded single photons. Our approach is based on parametric downconversion in a periodically-poled waveguide. However, unlike conventional downconversion sources, the photon pairs are counter-propagating: one travels with the pump beam in the forward direction while the other is backpropagating towards the laser source. Our calculations reveal that these downconverted two-photon states carry minimal spectral correlations within each photon-pair. This approach offers the possibility to employ a new range of downconversion processes and materials like PPLN (previously considered unsuitable due to their unfavorable phasematching properties) to herald pure single photons over a broad frequency range.

A. Christ; A. Eckstein; P. J. Mosley; C. Silberhorn

2009-02-09T23:59:59.000Z

332

Generation and transfer of single photons on a photonic crystal chip  

E-Print Network [OSTI]

We present a basic building block of a quantum network consisting of a quantum dot coupled to a source cavity, which in turn is coupled to a target cavity via a waveguide. The single photon emission from the high-Q/V source cavity is characterized by a twelve-fold spontaneous emission (SE) rate enhancement that results in a SE coupling efficiency near 0.98 into the source cavity mode. Single photons are efficiently transferred into the target cavity through the waveguide, with a source/target field intensity ratio of 0.12 (up to 0.49 observed in other structures without coupled quantum dots). This system shows great promise as a building block of future on-chip quantum information processing systems.

Dirk Englund; Andrei Faraon; Bingyang Zhang; Yoshihisa Yamamoto; Jelena Vuckovic

2006-09-07T23:59:59.000Z

333

Three chamber negative ion source  

DOE Patents [OSTI]

It is an object of this invention provide a negative ion source which efficiently provides a large flux of negatively ionized particles. This invention provides a volume source of negative ions which has a current density sufficient for magnetic fusion applications and has electrons suppressed from the output. It is still another object of this invention to provide a volume source of negative ions which can be electrostatically accelerated to high energies and subsequently neutralized to form a high energy neutral beam for use with a magnetically confined plasma.

Leung, K.N.; Ehlers, K.W.; Hiskes, J.R.

1983-11-10T23:59:59.000Z

334

THE RED MSX SOURCE SURVEY: THE MASSIVE YOUNG STELLAR POPULATION OF OUR GALAXY  

SciTech Connect (OSTI)

We present the Red MSX Source survey, the largest statistically selected catalog of young massive protostars and H II regions to date. We outline the construction of the catalog using mid- and near-infrared color selection. We also discuss the detailed follow up work at other wavelengths, including higher spatial resolution data in the infrared. We show that within the adopted selection bounds we are more than 90% complete for the massive protostellar population, with a positional accuracy of the exciting source of better than 2 arcsec. We briefly summarize some of the results that can be obtained from studying the properties of the objects in the catalog as a whole; we find evidence that the most massive stars form: (1) preferentially nearer the Galactic center than the anti-center; (2) in the most heavily reddened environments, suggestive of high accretion rates; and (3) from the most massive cloud cores.

Lumsden, S. L.; Hoare, M. G.; Oudmaijer, R. D.; Cooper, H. D. B. [School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom); Urquhart, J. S. [Max-Planck-Institut fr Radioastronomie, Auf dem Hgel 69, Bonn (Germany); Davies, B.; Moore, T. J. T. [Astrophysics Research Institute, Liverpool John Moores University, Liverpool L3 5RF (United Kingdom); Mottram, J. C. [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)

2013-09-01T23:59:59.000Z

335

Saturn's Largest Moon Distance to Saturn  

E-Print Network [OSTI]

: Three radioisotope thermoelectric generators (RTGs) · Optical Remote-Sensing Instruments: Will determine

Waliser, Duane E.

336

Energy Secretary Moniz Dedicates World's Largest Concentrating...  

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

curbs greenhouse gas emissions, and fosters American innovation." Ivanpah has the capacity to generate 392 megawatts (MW) of clean electricity -- enough to power 94,400 average...

337

Weather, p. 2 Oldest and Largest  

E-Print Network [OSTI]

Phillip L. Clay PhD '75, and will be made by mid-Febru- ary, according to Julie B. Norman, SeniorCon) convened to discuss how to ad- dress their concerns to Clay and Norman. The meeting resulted in a public, shock Jillian R. Reddy '11 was a sophomore on the Andrew swAyze--the tech nicholas D.

338

Oldest and Largest Weather, p. 2  

E-Print Network [OSTI]

will be opening. The concert will take place on April 29, 8 p.m at Johnson Ice Rink. The selection process Committee brainstorms a list of artists, which is sent to the commit- tee's agent at Pretty Polly Produc

339

Largest dual ellipsoids inscribed in dual cones  

E-Print Network [OSTI]

Jun 23, 2005 ... Let K be a solid, pointed, closed, convex cone in the finite-dimensional real vector space E. That is, K has .... These works address a given.

2005-06-23T23:59:59.000Z

340

CLASS of 2014 is LARGEST YET  

E-Print Network [OSTI]

higher education system was instrumental in the founding of UW Bothell in 1990. Kilmer's and McAuliffe's commitment to providing education and job opportunities in the STEM field resulted in the allocation LEADERS RECEIVE LEGACY AWARD CAMPUS UPDATES UNIVERSITY OF WASHINGTON BOTHELL 3 Terryl Ross, Ph

Manchak, John

Note: This page contains sample records for the topic "largest single source" 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

JEA successfully completes world's largest CFB demonstration  

SciTech Connect (OSTI)

JEA (formerly the Jacksonville Electric Authority) has successfully completed an eighth year landmark demonstration project that continues in baseload commercial operation. It scales up atmospheric fluidized-bed technology demonstration to the near-300-MW size, providing important data on a technology that can achieve > 90% SO{sub 2} removal and 60% NOx reduction at relatively high efficiencies and at costs comparable to those of conventional pulverized coal plants. The article recounts the history of the project. Performance tests showed a blend of coal and petcoke were most efficient as a feedstock. 3 figs.

NONE

2005-09-30T23:59:59.000Z

342

IWTU Construction Workers Set Largest Process Vessel  

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 ProposedUsingFun withconfinementEtching. | EMSLtheIndustry | Department ofT. Bonoli,

343

Radiation source with shaped emission  

DOE Patents [OSTI]

Employing a source of radiation, such as an electric discharge source, that is equipped with a capillary region configured into some predetermined shape, such as an arc or slit, can significantly improve the amount of flux delivered to the lithographic wafers while maintaining high efficiency. The source is particularly suited for photolithography systems that employs a ringfield camera. The invention permits the condenser which delivers critical illumination to the reticle to be simplified from five or more reflective elements to a total of three or four reflective elements thereby increasing condenser efficiency. It maximizes the flux delivered and maintains a high coupling efficiency. This architecture couples EUV radiation from the discharge source into a ring field lithography camera.

Kubiak, Glenn D.; Sweatt, William C.

2003-05-13T23:59:59.000Z

344

Next Generation Light Source Workshops  

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

Next Generation Light Source Workshops A series of workshops will be held in late August with the goal of refining the scientific drivers for the facility and translating the...

345

E-Print Network 3.0 - accidental radiation exposures Sample Search...  

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

many uses, x-rays are the single largest source of man-made radiation exposure. X... -occurring radium and is a major ... Source: Yucca Mountain Project, US EPA Collection:...

346

Numerical study of the influence of applied voltage on the current balance factor of single layer organic light-emitting diodes  

SciTech Connect (OSTI)

Current balance factor (CBF) value, the ratio of the recombination current density and the total current density of a device, has an important function in fluorescence-based organic light-emitting diodes (OLEDs), as well as in the performance of the organic electrophosphorescent devices. This paper investigates the influence of the applied voltage of a device on the CBF value of single layer OLED based on the numerical model of a bipolar single layer OLED with organic layer trap free and without doping. Results show that the largest CBF value can be achieved when the electron injection barrier (?{sub n}) is equal to the hole injection barrier (?{sub p}) in the lower voltage region at any instance. The largest CBF in the higher voltage region can be achieved in the case of ?{sub n}?>??{sub p} under the condition of electron mobility (?{sub 0n}) > hole mobility (?{sub 0p}), whereas the result for the case of ?{sub 0n}?largest CBF when ?{sub 0n}?=??{sub 0p} can be achieved in the case of ?{sub n}?=??{sub p} in the entire region of the applied voltage. In addition, the CBF value of the device increases with increasing applied voltage. The results obtained in this paper can present an in-depth understanding of the OLED working mechanism and help in the future fabrication of high efficiency OLEDs.

Lu, Fei-ping, E-mail: lufp-sysu@163.com; Liu, Xiao-bin; Xing, Yong-zhong [College of Physics and Information Science, Tianshui Normal University, Tianshui 741001 (China)

2014-04-28T23:59:59.000Z

347

(Almost) Dark HI Sources in the ALFALFA Survey: The Intriguing Case of HI1232+20  

E-Print Network [OSTI]

We report the discovery and follow-up observations of a system of three objects identified by the ALFALFA extragalactic HI survey, cataloged as (almost) dark extragalactic sources, i.e., extragalactic HI detections with no discernible counterpart in publicly available, wide-field, imaging surveys. We have obtained deep optical imaging with WIYN pODI and HI synthesis maps with WSRT of the HI1232+20 system. The source with the highest HI flux has a newly discovered ultra-low surface brightness (LSB) optical counterpart associated with it, while the other two sources have no detected optical counterparts in our images. Our optical observations show that the detected LSB optical counterpart has a peak surface brightness of ~26.4 mag/arcsec^2 in g', which is exceptionally faint. This source (AGC 229385) has the largest accurately measured HI mass-to-light ratio of an isolated object: MHI/Lg'=46 Msun/Lsun, and has an HI mass of 7.2*10^8 Msun. The other two HI sources (with HI masses 2.0*10^8 and 1.2*10^8 Msun) with...

Janowiecki, Steven; Jozsa, Gyula; Salzer, John J; Haynes, Martha P; Giovanelli, Riccardo; Rhode, Katherine L; Cannon, John M; Adams, Elizabeth A K; Janesh, William F

2015-01-01T23:59:59.000Z

348

U.S. Energy Information Administration (EIA) - Source  

Gasoline and Diesel Fuel Update (EIA)

shows the next-largest percentage improvement, followed by lighting and electric space heating (Figure 80). The Best Available Demand Technology case demonstrates significant...

349

SINGLE HEATER TEST FINAL REPORT  

SciTech Connect (OSTI)

The Single Heater Test is the first of the in-situ thermal tests conducted by the U.S. Department of Energy as part of its program of characterizing Yucca Mountain in Nevada as the potential site for a proposed deep geologic repository for the disposal of spent nuclear fuel and high-level nuclear waste. The Site Characterization Plan (DOE 1988) contained an extensive plan of in-situ thermal tests aimed at understanding specific aspects of the response of the local rock-mass around the potential repository to the heat from the radioactive decay of the emplaced waste. With the refocusing of the Site Characterization Plan by the ''Civilian Radioactive Waste Management Program Plan'' (DOE 1994), a consolidated thermal testing program emerged by 1995 as documented in the reports ''In-Situ Thermal Testing Program Strategy'' (DOE 1995) and ''Updated In-Situ Thermal Testing Program Strategy'' (CRWMS M&O 1997a). The concept of the Single Heater Test took shape in the summer of 1995 and detailed planning and design of the test started with the beginning fiscal year 1996. The overall objective of the Single Heater Test was to gain an understanding of the coupled thermal, mechanical, hydrological, and chemical processes that are anticipated to occur in the local rock-mass in the potential repository as a result of heat from radioactive decay of the emplaced waste. This included making a priori predictions of the test results using existing models and subsequently refining or modifying the models, on the basis of comparative and interpretive analyses of the measurements and predictions. A second, no less important, objective was to try out, in a full-scale field setting, the various instruments and equipment to be employed in the future on a much larger, more complex, thermal test of longer duration, such as the Drift Scale Test. This ''shake down'' or trial aspect of the Single Heater Test applied not just to the hardware, but also to the teamwork and cooperation between multiple organizations performing their part in the test.

J.B. Cho

1999-05-01T23:59:59.000Z

350

Single electron states in polyethylene  

SciTech Connect (OSTI)

We report computer simulations of an excess electron in various structural motifs of polyethylene at room temperature, including lamellar and interfacial regions between amorphous and lamellae, as well as nanometre-sized voids. Electronic properties such as density of states, mobility edges, and mobilities are computed on the different phases using a block Lanczos algorithm. Our results suggest that the electronic density of states for a heterogeneous material can be approximated by summing the single phase density of states weighted by their corresponding volume fractions. Additionally, a quantitative connection between the localized states of the excess electron and the local atomic structure is presented.

Wang, Y. [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China) [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China); School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland); MacKernan, D. [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland)] [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland); Cubero, D., E-mail: dcubero@us.es, E-mail: n.quirke@imperial.ac.uk [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China); Departmento de Fsica Aplicada I, Universidad de Sevilla, Calle Virgen de Africa 7, 41011 Seville (Spain); Coker, D. F. [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland) [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland); Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215 (United States); Quirke, N., E-mail: dcubero@us.es, E-mail: n.quirke@imperial.ac.uk [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China); Department of Chemistry, Imperial College, London SW7 2AY (United Kingdom)

2014-04-21T23:59:59.000Z

351

Single and double grid long-range alpha detectors  

DOE Patents [OSTI]

Alpha particle detectors capable of detecting alpha radiation from distant sources. In one embodiment, a voltage is generated in a single electrically conductive grid while a fan draws air containing air molecules ionized by alpha particles through an air passage and across the conductive grid. The current in the conductive grid can be detected and used for measurement or alarm. Another embodiment builds on this concept and provides an additional grid so that air ions of both polarities can be detected. The detector can be used in many applications, such as for pipe or duct, tank, or soil sample monitoring.

MacArthur, Duncan W. (Los Alamos, NM); Allander, Krag S. (Ojo Caliente, NM)

1993-01-01T23:59:59.000Z

352

Single and double grid long-range alpha detectors  

DOE Patents [OSTI]

Alpha particle detectors capable of detecting alpha radiation from distant sources. In one embodiment, a voltage is generated in a single electrically conductive grid while a fan draws air containing air molecules ionized by alpha particles through an air passage and across the conductive grid. The current in the conductive grid can be detected and used for measurement or alarm. Another embodiment builds on this concept and provides an additional grid so that air ions of both polarities can be detected. The detector can be used in many applications, such as for pipe or duct, tank, or soil sample monitoring.

MacArthur, D.W.; Allander, K.S.

1993-03-16T23:59:59.000Z

353

Coherent control of single photon states  

E-Print Network [OSTI]

We define a class of multi-mode single photon states suitable for quantum information applications. We show how standard amplitude modulation techniques may be used to control the pulse shape of single photon states.

G. J. Milburn

2007-02-12T23:59:59.000Z

354

Physics & Astronomy BSc (Single Honours Degrees)  

E-Print Network [OSTI]

138 Physics & Astronomy BSc (Single Honours Degrees) Astrophysics Physics MPhys (Single Honours Degrees) Astrophysics Physics Theoretical Physics BSc (Joint Honours Degrees) Physics and one of: Computer Science Logic and Philosophy of Science Mathematics MPhys (Joint Honours Degree) Theoretical Physics

Brierley, Andrew

355

Photon tunnelling microscopy of polyethylene single crystals  

E-Print Network [OSTI]

Photon tunnelling microscopy of polyethylene single crystals Mohan Srinivasarao* and Richard S:photon tunnellingmicroscopy;single crystals; polyethylene) INTRODUCTION The study of morphology of polymers is an area

Srinivasarao, Mohan

356

The DC field components of horizontal and vertical electric dipole sources immersed in three-layered stratified media  

E-Print Network [OSTI]

for the solution in the case of horizontal electric dipole (HED) radiation source and the single-component HertzThe DC field components of horizontal and vertical electric dipole sources immersed in three- ponents of the static (DC) fields of horizontal electric dipoles ( HEDs) and vertical electric dipoles

Boyer, Edmond

357

Research on fusion neutron sources  

SciTech Connect (OSTI)

The use of fusion devices as powerful neutron sources has been discussed for decades. Whereas the successful route to a commercial fusion power reactor demands steady state stable operation combined with the high efficiency required to make electricity production economic, the alternative approach to advancing the use of fusion is free of many of complications connected with the requirements for economic power generation and uses the already achieved knowledge of Fusion physics and developed Fusion technologies. 'Fusion for Neutrons' (F4N), has now been re-visited, inspired by recent progress achieved on comparably compact fusion devices, based on the Spherical Tokamak (ST) concept. Freed from the requirement to produce much more electricity than used to drive it, a fusion neutron source could be efficiently used for many commercial applications, and also to support the goal of producing energy by nuclear power. The possibility to use a small or medium size ST as a powerful or intense steady-state fusion neutron source (FNS) is discussed in this paper in comparison with the use of traditional high aspect ratio tokamaks. An overview of various conceptual designs of compact fusion neutron sources based on the ST concept is given and they are compared with a recently proposed Super Compact Fusion Neutron Source (SCFNS), with major radius as low as 0.5 metres but still able to produce several MW of neutrons in a steady-state regime.

Gryaznevich, M. P. [Tokamak Solutions UK, Culham Science Centre, Abingdon, OXON, OX133DB (United Kingdom)

2012-06-19T23:59:59.000Z

358

PHOTOCATALYTIC AND PHOTOELECTROCHEMICAL HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS  

E-Print Network [OSTI]

HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS F.HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS

Wagner, F.T.

2012-01-01T23:59:59.000Z

359

Development of Li+ alumino-silicate ion source  

SciTech Connect (OSTI)

To uniformly heat targets to electron-volt temperatures for the study of warm dense matter, one strategy is to deposit most of the ion energy at the peak of energy loss (dE/dx) with a low (E< 5 MeV) kinetic energy beam and a thin target[1]. Lower mass ions have a peak dE/dx at a lower kinetic energy. To this end, a small lithium (Li+) alumino-silicate source has been fabricated, and its emission limit has been measured. These surface ionization sources are heated to 1000-1150 C where they preferentially emit singly ionized alkali ions. Alumino-silicates sources of K+ and Cs+ have been used extensively in beam experiments, but there are additional challenges for the preparation of high-quality Li+ sources: There are tighter tolerances in preparing and sintering the alumino-silicate to the substrate to produce an emitter that gives uniform ion emission, sufficient current density and low beam emittance. We report on recent measurements ofhigh ( up to 35 mA/cm2) current density from a Li+ source. Ion species identification of possible contaminants is being verified with a Wien (E x B) filter, and via time-of-flight.

Roy, P.K.; Seidl, P.A.; Waldron, W.; Greenway, W.; Lidia, S.; Anders, A.; Kwan, J.

2009-04-21T23:59:59.000Z

360

Neutron production using a pyroelectric driven target coupled with a gated field ionization source  

SciTech Connect (OSTI)

A palm sized, portable neutron source would be useful for widespread implementation of detection systems for shielded, special nuclear material. We present progress towards the development of the components for an ultracompact neutron generator using a pulsed, meso-scale field ionization source, a deuterated (or tritiated) titanium target driven by a negative high voltage lithium tantalate crystal. Neutron production from integrated tests using an ion source with a single, biased tungsten tip and a 3 Multiplication-Sign 1 cm, vacuum insulated crystal with a plastic deuterated target are presented. Component testing of the ion source with a single tip produces up to 3 nA of current. Dielectric insulation of the lithium tantalate crystals appears to reduce flashover, which should improve the robustness. The field emission losses from a 3 cm diameter crystal with a plastic target and 6 cm diameter crystal with a metal target are compared.

Ellsworth, J. L.; Tang, V.; Falabella, S. [Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA 94550 (United States); Naranjo, B.; Putterman, S. [University of California Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90095 (United States)

2013-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Nanoscale Calorimetry of Isolated Polyethylene Single Crystals  

E-Print Network [OSTI]

Nanoscale Calorimetry of Isolated Polyethylene Single Crystals A. T. KWAN, M. YU. EFREMOV, E. A-film differential scanning calorimetry to investigate the melt- ing of isolated polyethylene single crystals of lamellar single crystals of polyethylene (PE). We obtain thickness, diffraction, and calorimetry data

Allen, Leslie H.

362

Single-Frontier Bidirectional Search Ariel Felner  

E-Print Network [OSTI]

Single-Frontier Bidirectional Search Ariel Felner Information Systems Engineering Deutsche Telekom in practice often fall far short of expectations. We introduce a new bidirectional search algorithm, Single-Frontier Bidirectional Search (SF- BDS). Unlike traditional BDS which keeps two frontiers, SF- BDS uses a single frontier

Schaeffer, Jonathan

363

Miniature x-ray source  

DOE Patents [OSTI]

A miniature x-ray source utilizing a hot filament cathode. The source has a millimeter scale size and is capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature source consists of a compact vacuum tube assembly containing the hot filament cathode, an anode, a high voltage feedthru for delivering high voltage to the cathode, a getter for maintaining high vacuum, a connector for initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is fabricated from highly x-ray transparent materials, such as sapphire, diamond, or boron nitride.

Trebes, James E. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA)

2000-01-01T23:59:59.000Z

364

Miniature x-ray source  

DOE Patents [OSTI]

A miniature x-ray source capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature x-ray source comprises a compact vacuum tube assembly containing a cathode, an anode, a high voltage feedthru for delivering high voltage to the anode, a getter for maintaining high vacuum, a connection for an initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is highly x-ray transparent and made, for example, from boron nitride. The compact size and potential for remote operation allows the x-ray source, for example, to be placed adjacent to a material sample undergoing analysis or in proximity to the region to be treated for medical applications.

Trebes, James E. (Livermore, CA); Stone, Gary F. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA); Chornenky, Victor I. (Minnetonka, MN)

2002-01-01T23:59:59.000Z

365

Compact portable electric power sources  

SciTech Connect (OSTI)

This report provides an overview of recent advances in portable electric power source (PEPS) technology and an assessment of emerging PEPS technologies that may meet US Special Operations Command`s (SOCOM) needs in the next 1--2- and 3--5-year time frames. The assessment was performed through a literature search and interviews with experts in various laboratories and companies. Nineteen PEPS technologies were reviewed and characterized as (1) PEPSs that meet SOCOM requirements; (2) PEPSs that could fulfill requirements for special field conditions and locations; (3) potentially high-payoff sources that require additional R and D; and (4) sources unlikely to meet present SOCOM requirements. 6 figs., 10 tabs.

Fry, D.N.; Holcomb, D.E.; Munro, J.K.; Oakes, L.C.; Matson, M.J.

1997-02-01T23:59:59.000Z

366

Entanglement swapping with PDC sources  

E-Print Network [OSTI]

We show that the possibility of distinguishing between single and two photon detection events is not a necessary requirement for the proof that recent operational realization of entanglement swapping cannot find a local realistic description. We propose a simple modification of the experiment, which gives a richer set of interesting phenomena.

Marek Zukowski; Dagomir Kaszlikowski

1999-11-10T23:59:59.000Z

367

A global sourcing strategy for durable tooling  

E-Print Network [OSTI]

Competitive pressures in manufacturing industries have led to an increased utilization of strategic sourcing initiatives: among them is low cost sourcing. While low cost sourcing has been used extensively for direct ...

Vasovski, Steven

2006-01-01T23:59:59.000Z

368

Source selection of agricultural journalists in Texas  

E-Print Network [OSTI]

Journalists rely on sources in their daily routines, and the sources they choose affect news content over time. Agricultural journalists are no exception. Eleven agricultural journalists in Texas were studied to determine what types of sources...

Banks, Penelope Jean

1998-01-01T23:59:59.000Z

369

MODELING, SIMULATION AND OPTIMIZATION OF GROUND SOURCE  

E-Print Network [OSTI]

MODELING, SIMULATION AND OPTIMIZATION OF GROUND SOURCE HEAT PUMP SYSTEMS By MUHAMMAD HAIDER KHAN AND OPTIMIZATION OF GROUND SOURCE HEAT PUMP SYSTEMS Thesis Approved..................................................................................................................... 1 1.1 Overview of Ground Source Heat Pump Systems.............................................. 1 1

370

Major Source Permits (District of Columbia)  

Broader source: Energy.gov [DOE]

The District reviews designs for new pollution sources and design modifications for existing sources. Permits are issued to allow sources to emit limited and specified amounts of pollution as...

371

4th Generation ECR Ion Sources  

E-Print Network [OSTI]

4th Generation ECR Ion Sources Claude M Lyneis, D. Leitner,to developing a 4 th generation ECR ion source with an RFover current 3 rd generation ECR ion sources, which operate

Lyneis, Claude M.

2010-01-01T23:59:59.000Z

372

Stretchable Supercapacitors Based on Buckled Single-Walled Carbon Nanotube Macrofilms  

E-Print Network [OSTI]

Stretchable Supercapacitors Based on Buckled Single-Walled Carbon Nanotube Macrofilms By Cunjiang to accommodate large strains while retaining intact function. Of various power-source devices, supercapacitors in supercapacitors is the development of new electrode materials. Recently, CNTs have been studied as good candidates

Jiang, Hanqing

373

Engineering report single-shell tank farms interim measures to limit infiltration through the vadose zone  

SciTech Connect (OSTI)

Identifies, evaluates and recommends interim measures for reducing or eliminating water sources and preferential pathways within the vadose zone of the single-shell tank farms. Features studied: surface water infiltration and leaking water lines that provide recharge moisture, and wells that could provide pathways for contaminant migration. An extensive data base, maps, recommended mitigations, and rough order of magnitude costs are included.

HAASS, C.C.

1999-10-14T23:59:59.000Z

374

Single Stage Faraday Accelerator with Radio-frequency Assisted Discharge (SS-FARAD)  

E-Print Network [OSTI]

-assisted, pulsed, electrodeless accelerator concept that utilizes a single antenna coil for plasma generation be sufficiently isolated from the RF source without significant adverse affects on plasma generation. Nomenclature Pulsed inductive plasma accelerators are seen as a way to overcome major obstacles in other electric

Choueiri, Edgar

375

Transverse oscillations in a single-layer dusty plasma under microgravity V. E. Fortov,2  

E-Print Network [OSTI]

and A. V. Ivlev3 1 Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242 microgravity conditions. This single layer is confined at a void boundary by a balance of ion drag and electric a source of energy for microparticles. Under microgravity conditions, micropar- ticles are suspended

Goree, John

376

Diameter-Controlled and Nitrogen-Doped Vertically Aligned Single-Walled Carbon Theerapol Thurakitsereea  

E-Print Network [OSTI]

controlled and vertically aligned single-walled carbon nanotubes were synthesized from pure and mixed ethanol/acetonitrile feedstock. With increasing acetonitrile concentration in the feedstock, nitrogen incorporation into the sp2], methane [8], acetylene [9], ethylene [10], or other organic chemical sources [11]. Acetonitrile (CH3CN

Maruyama, Shigeo

377

Precision Measurements with the Single Electron Transistor: Noise and Backaction in the Normal and Superconducting state  

E-Print Network [OSTI]

in an RF-SET configuration in a dilution refrigerator. A charge-noise vetoing algorithm was implemented, the single electron box/Cooper pair box. We consider the SET as a nanoscale charge amplifier, and show coupled input voltage modulates a drain-source current serving as the amplifier output. As a charge

378

Single-cycle nonlinear optics  

SciTech Connect (OSTI)

Nonlinear optics plays a central role in the advancement of optical science and laser-based technologies. We report on the confinement of the nonlinear interaction of light with matter to a single wave cycle and demonstrate its utility for time-resolved and strong-field science. The electric field of 3.3-femtosecond, 0.72-micron laser pulses with a controlled and measured waveform ionizes atoms near the crests of the central wave cycle, with ionization being virtually switched off outside this interval. Isolated sub-100-attosecond pulses of extreme ultraviolet light (photon energy {approx} 80 electron volts), containing {approx} 0.5 nanojoule of energy, emerge from the interaction with a conversion efficiency of {approx} 10{sup -6}. These tools enable the study of the precision control of electron motion with light fields and electron-electron interactions with a resolution approaching the atomic unit of time ({approx} 24 attoseconds).

Max-Planck-Institut fur Quantenoptik; Goulielmakis, E.; Schultze, M.; Hofstetter, M.; Yakovlev, V. S.; Gagnon, J.; Uiberacker, M.; Aquila, A. L.; gullikson, E. M.; attwood, D. T.; Kienberger, R.; Krausz, F.; Kleineberg, U.

2008-11-05T23:59:59.000Z

379

Experimental plan for the Single-Family Study  

SciTech Connect (OSTI)

The national evaluation of the Weatherization Assistance Program (WAP) consists of five separate studies. The Single-Family Study is one of three studies that will estimate program energy savings and cost effectiveness in principal WAP submarkets. This report presents the experimental plan for the Single-Family Study, which will be implemented over the next three years (1991--1993). The Single-Family Study will directly estimate energy savings for a nationally representative sample of single-family and small multifamily homes weatherized in the 1989 program year. Savings will be estimated from gas and electric utility billing records using the Princeton Scorekeeping Method (PRISM). The study will also assess nonenergy impacts (e.g., health, comfort, safety, and housing affordability), estimate cost effectiveness, and analyze factors influencing these outcomes. For homes using fuels such as wood, coal, fuel oil, kerosene, and propane as the primary source of space conditioning, energy savings will be studied indirectly. The study will assemble a large nationally representative data base. A cluster sampling approach will be used, in which about 400 subgrantees are selected in a first stage and weatherized homes are selected in a second range. To ensure that the Single-Family Study is able to identify promising opportunities for future program development, two purposively selected groups of subgrantees will be included: (1) subgrantees that install cooling measures (such as more efficient air conditioning equipment or radiant barriers), and (2) exemplary subgrantees that use state-of-the-art technologies and service delivery procedures (such as advanced audit techniques, blower door tests, infrared scanners, extensive client education, etc.). These two groups of subgrantees will be analyzed to identify the most effective program elements in specific circumstances. 14 refs., 4 figs., 3 tabs.

Berry, L.G.; Brown, M.A.; Wright, T.; White, D.L.

1991-09-01T23:59:59.000Z

380

Fluxes, variability and sources of cadmium, lead, arsenic and mercury in dry atmospheric depositions in urban, suburban and rural areas  

SciTech Connect (OSTI)

In China's largest city, Shanghai, dry deposition fluxes of Cd, Pb, As and Hg were 137, 19 354, 2897 and 9.4 {mu}g m{sup -2} a{sup -1}, respectively in an urban area, intermediate in a suburban area, and 51.7, 5311, 1703 and 7.3 {mu}g m{sup -2} a{sup -1}, respectively in a rural area. Enrichment factors were Cd>Pb>As>Hg. Seasonal variations of metals differed: Pb and As were dominated by fossil fuel combustion, Cd was related to industrial pollution, and natural source controlled Hg levels.

Shi, G., E-mail: gt_shi@163.com [Polar Research Institute of China, Shanghai 200136 (China); Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China); Chen, Z. [Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China)] [Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China); Teng, J. [Shanghai Chongming Dongtan National Nature Reserve, Shanghai 202183 (China)] [Shanghai Chongming Dongtan National Nature Reserve, Shanghai 202183 (China); Bi, C.; Zhou, D.; Sun, C. [Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China)] [Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China); Li, Y. [Polar Research Institute of China, Shanghai 200136 (China)] [Polar Research Institute of China, Shanghai 200136 (China); Xu, S. [Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China)] [Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China)

2012-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Alternative Energy Sources - An Interdisciplinary Module for...  

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

Alternative Energy Sources - An Interdisciplinary Module for Energy Education Alternative Energy Sources - An Interdisciplinary Module for Energy Education Below is information...

382

Mercury Effects, Sources and Control Measures  

E-Print Network [OSTI]

Mercury Effects, Sources and Control Measures Prepared by Alan B. Jones, Brooks Rand, Ltd., Seattle ................................................................................................................................1 MERCURY SOURCES....................................................................................................................................................................................8 Mercury dumping from naval vessels

383

RECENT PROGRESS IN HEAVY ION SOURCES  

E-Print Network [OSTI]

of hydrogen into thermonuclear fusion reactors. A summary ofFusion Plasma Sources Other sources of high charge state ions include the dense plasma in magnetic confinement thermonuclear

Clark, D.J.

2010-01-01T23:59:59.000Z

384

Self-seeded single-frequency solid-state ring laser and system using same  

DOE Patents [OSTI]

A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

Dane, C. Brent; Hackel, Lloyd; Harris, Fritz B.

2007-02-20T23:59:59.000Z

385

Lesson 2: Energy Sources Overview  

E-Print Network [OSTI]

Earth's internal heat; ­solar energy from the Sun; ­gravitaDonal energy · There are three sources of external energy: ­ solar energy: radiant energy from and some is converted to tsunami #12;Overview · Solar Energy: ­ Of the three

Chen, Po

386

Known and unknown SCUBA sources  

E-Print Network [OSTI]

Summary and discussion of some projects to use SCUBA to target sources selected at other wavebands, as well as to find new sub-mm galaxies in `blank fields': FIRBACK galaxies; Lyman break galaxies and `the Blob'; HDF flanking fields and the Groth Strip; survey of lensing cluster fields.

Douglas Scott; Colin Borys; Mark Halpern; Anna Sajina; Scott Chapman; Greg Fahlman

2000-10-25T23:59:59.000Z

387

Reporting of Radioactive Sealed Sources  

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

To establish U.S. Department of Energy requirements for inventory reporting, transaction reporting, verification of reporting, and assign responsibilities for reporting of radioactive sealed sources. DOE N 251.86 extends this notice until 5-6-11. No cancellations. Canceled by DOE O 231.1B

2008-02-27T23:59:59.000Z

388

EAT SMART Sources: Heart Health  

E-Print Network [OSTI]

-1- EAT SMART Sources: Heart Health American Dietetic Association Complete Food and Nutrition Guide and Promotion; Home and Garden Bulletin Number 252; August 1992. Heart Attach Signs, U.S. Department of Health and Human Services: National Institutes of Heart, Lung, and Blood Institute, NIH Publication No. 01

389

National Synchrotron Light Source II  

ScienceCinema (OSTI)

The National Synchrotron Light Source II (NSLS-II) at the U.S. Department of Energy's Brookhaven National Laboratory is a proposed new state-of-the-art medium energy storage ring designed to deliver world-leading brightness and flux with top-off operation

Steve Dierker

2010-01-08T23:59:59.000Z

390

6, 61256181, 2006 Sources and  

E-Print Network [OSTI]

and transport mechanisms of the pollutants accurately. Mexico City has a large urban fleet in a topographically of the emission inventory, verification of transport processes in air quality models and guidance for policy for the Mexico City Metropolitan Area 6126 #12;ACPD 6, 6125­6181, 2006 Sources and transport of CO and SO2

Boyer, Edmond

391

MIT inverse Compton source concept  

E-Print Network [OSTI]

A compact X-ray source based on inverse Compton scattering of a high-power laser on a high-brightness linac beam is described. The facility can operate in two modes: at high (MHz) repetition rate with flux and brilliance ...

Graves, William S.

392

Climate Change Major information sources  

E-Print Network [OSTI]

://www.ipcc.ch/ Vital Climate Graphics, at http://www.grida.no/climate/vital/ Climate Change Impacts on US, at http://www.gcrio.org/NationalAssessment/ Greenhouse Warming Prediction #12;Energy Predictions 2 Sources: Energy Information Administration (EIA); International Energy Agency (IEA) 2% growth per year, or doubling in 35 years (shortcut: 70/%=doubling) Fossil

393

Supporting Information to: Single-Molecule Electrocatalysis by Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

S1 Supporting Information to: Single-Molecule Electrocatalysis by Single-Walled Carbon Nanotubes. Experimental Methods I.1. Purification of SWNTs. The single-walled carbon nanotubes were purchased from Carbon Nanotechnologies Incorporated (Purified HiPCO single-walled carbon nanotubes). These SWNTs have an average diameter

Chen, Peng

394

Miniaturized cathodic arc plasma source  

DOE Patents [OSTI]

A cathodic arc plasma source has an anode formed of a plurality of spaced baffles which extend beyond the active cathode surface of the cathode. With the open baffle structure of the anode, most macroparticles pass through the gaps between the baffles and reflect off the baffles out of the plasma stream that enters a filter. Thus the anode not only has an electrical function but serves as a prefilter. The cathode has a small diameter, e.g. a rod of about 1/4 inch (6.25 mm) diameter. Thus the plasma source output is well localized, even with cathode spot movement which is limited in area, so that it effectively couples into a miniaturized filter. With a small area cathode, the material eroded from the cathode needs to be replaced to maintain plasma production. Therefore, the source includes a cathode advancement or feed mechanism coupled to cathode rod. The cathode also requires a cooling mechanism. The movable cathode rod is housed in a cooled metal shield or tube which serves as both a current conductor, thus reducing ohmic heat produced in the cathode, and as the heat sink for heat generated at or near the cathode. Cooling of the cathode housing tube is done by contact with coolant at a place remote from the active cathode surface. The source is operated in pulsed mode at relatively high currents, about 1 kA. The high arc current can also be used to operate the magnetic filter. A cathodic arc plasma deposition system using this source can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA)

2003-04-15T23:59:59.000Z

395

Laser Electron Gamma Source. Biennial progress report  

SciTech Connect (OSTI)

The LEGS facility provides intense, polarized, monochromatic {gamma}-ray beams by Compton backscattering laser light from relativistic electrons circulating in the X-Ray storage ring of the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory. With the start of ring operations at 2.8 GeV, LEGS {gamma}-ray energies now extend to 370 MeV. Considerable progress has been made in the development of a new laser system that will increase the beam energies to 470 MeV, and this system is expected to come into operation before the next biennial report. The total flux is administratively held at 6 {times} 10{sup 6} s{sup {minus}1}. The {gamma}-ray energy is determined, with a resolution of 5.5 MeV, by detecting the scattering electrons in a magnetic spectrometer. This spectrometer can `tag` all {gamma}-rays with energies from 185 MeV up to the Compton edge. The beam spot size at the target position is 8 mm (V) {times} 18 mm (H), FWHM. For a single laser wavelength, the linear polarization of the beam is 98% at the Compton edge and decreases to 50% at about 1/2 the energy of the edge. By choosing the laser wavelengths appropriately the polarization can be maintained above 85% throughout the tagging range. During the last two years, experimental running at LEGS occupied an average of 3000 hours annually. Highlights of some of the programs are discussed below.

Sandorfi, A.M. [ed.; Caracappa, A.; Kuczewski, A.; Kistner, O.C.; Lincoln, F.; Miceli, L.; Thorn, C.E. [Brookhaven National Lab., Upton, NY (United States); Hoblit, S. [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics; Khandaker, M. [Brookhaven National Lab., Upton, NY (United States)]|[Virginia Polytechnic Institute & State Univ., Blacksburg, VA (United States). Dept. of Physics

1994-06-01T23:59:59.000Z

396

Hanford Tank Waste - Near Source Treatment of Low Activity Waste  

SciTech Connect (OSTI)

Abstract only. Treatment and disposition of Hanford Site waste as currently planned consists of 100+ waste retrievals, waste delivery through up to 8+ miles of dedicated, in-ground piping, centralized mixing and blending operations- all leading to pre-treatment combination and separation processes followed by vitrification at the Hanford Tank Waste Treatment and Immobilization Plant (WTP). The sequential nature of Tank Farm and WTP operations requires nominally 15-20 years of continuous operations before all waste can be retrieved from many Single Shell Tanks (SSTs). Also, the infrastructure necessary to mobilize and deliver the waste requires significant investment beyond that required for the WTP. Treating waste as closely as possible to individual tanks or groups- as allowed by the waste characteristics- is being investigated to determine the potential to 1) defer, reduce, and/or eliminate infrastructure requirements, and 2) significantly mitigate project risk by reducing the potential and impact of single point failures. The inventory of Hanford waste slated for processing and disposition as LAW is currently managed as high-level waste (HLW), i.e., the separation of fission products and other radionuclides has not commenced. A significant inventory of this waste (over 20M gallons) is in the form of precipitated saltcake maintained in single shell tanks, many of which are identified as potential leaking tanks. Retrieval and transport (as a liquid) must be staged within the waste feed delivery capability established by site infrastructure and WTP. Near Source treatment, if employed, would provide for the separation and stabilization processing necessary for waste located in remote farms (wherein most of the leaking tanks reside) significantly earlier than currently projected. Near Source treatment is intended to address the currently accepted site risk and also provides means to mitigate future issues likely to be faced over the coming decades. This paper describes the potential near source treatment and waste disposition options as well as the impact these options could have on reducing infrastructure requirements, project cost and mission schedule.

Ramsey, William Gene

2013-08-15T23:59:59.000Z

397

Simulating variable source problems via post processing of individual particle tallies  

SciTech Connect (OSTI)

Monte Carlo is an extremely powerful method of simulating complex, three dimensional environments without excessive problem simplification. However, it is often time consuming to simulate models in which the source can be highly varied. Similarly difficult are optimization studies involving sources in which many input parameters are variable, such as particle energy, angle, and spatial distribution. Such studies are often approached using brute force methods or intelligent guesswork. One field in which these problems are often encountered is accelerator-driven Boron Neutron Capture Therapy (BNCT) for the treatment of cancers. Solving the reverse problem of determining the best neutron source for optimal BNCT treatment can be accomplished by separating the time-consuming particle-tracking process of a full Monte Carlo simulation from the calculation of the source weighting factors which is typically performed at the beginning of a Monte Carlo simulation. By post-processing these weighting factors on a recorded file of individual particle tally information, the effect of changing source variables can be realized in a matter of seconds, instead of requiring hours or days for additional complete simulations. By intelligent source biasing, any number of different source distributions can be calculated quickly from a single Monte Carlo simulation. The source description can be treated as variable and the effect of changing multiple interdependent source variables on the problem's solution can be determined. Though the focus of this study is on BNCT applications, this procedure may be applicable to any problem that involves a variable source.

Bleuel, D.L.; Donahue, R.J.; Ludewigt, B.A.; Vujic, J.

2000-10-20T23:59:59.000Z

398

Single-Chain Antibody Library  

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

Researchers at Pacific Northwest National Laboratory (PNNL) have constructed a nonimmune library consisting of 109 human antibody scFv fragments, which have been cloned and expressed on the surface of yeast. Nanomolar-affinity scFvs are routinely obtained by magnetic bead screening and flow cytometric sorting. The yeast library can be amplified 1010 fold without measurable loss of clonal diversity. This allows for indefinite expansion of the library. All scFv clones can be assessed directly on the yeast cell surface by immunofluorescent labeling and flow cytometry, obviating separate subcloning, expression, and purification steps. The ability to use multiplex library screening demonstrates the utility of this approach for high-throughput antibody isolation for proteomic applications. The yeast library may be used for research projects or teaching performed for U.S. Government purposes only. If you would like to request an aliquot of the single-chain antibody library for your research, please print and fill out the Materials Transfer Agreement (MTA) [PDF, 20K]. The website provides the contact information for mailing the MTA. [copied from http://www.sysbio.org/dataresources/singlechain.stm

Baird, Cheryl

399

Method for image reconstruction of moving radionuclide source distribution  

DOE Patents [OSTI]

A method for image reconstruction of moving radionuclide distributions. Its particular embodiment is for single photon emission computed tomography (SPECT) imaging of awake animals, though its techniques are general enough to be applied to other moving radionuclide distributions as well. The invention eliminates motion and blurring artifacts for image reconstructions of moving source distributions. This opens new avenues in the area of small animal brain imaging with radiotracers, which can now be performed without the perturbing influences of anesthesia or physical restraint on the biological system.

Stolin, Alexander V.; McKisson, John E.; Lee, Seung Joon; Smith, Mark Frederick

2012-12-18T23:59:59.000Z

400

National Synchrotron Light Source Activity Report 1998  

SciTech Connect (OSTI)

National Synchrotron Light Source Activity Report for period October 1, 1997 through September 30, 1998

Rothman, Eva

1999-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Best Management Practice #14: Alternate Water Sources  

Broader source: Energy.gov [DOE]

Many federal facilities may have water uses that can be met with non-potable water from alternate water sources. Potentially available alternative water sources for Federal sources include municipal-supplied reclaimed water, treated gray water from on-site sanitary sources, and storm water.

402

National Synchrotron Light Source annual report 1991  

SciTech Connect (OSTI)

This report contains abstracts from research conducted at the national synchrotron light source. (LSP)

Hulbert, S.L.; Lazarz, N.N. (eds.)

1992-04-01T23:59:59.000Z

403

Best Management Practice #14: Alternative Water Sources  

Broader source: Energy.gov [DOE]

Many federal facilities may have water uses that can be met with non-potable water from alternative water sources. Potentially available alternative water sources for Federal sources include municipal-supplied reclaimed water, treated gray water from on-site sanitary sources, and storm water.

404

X-ray lithography source  

DOE Patents [OSTI]

A high-intensity, inexpensive X-ray source for X-ray lithography for the production of integrated circuits is disclosed. Foil stacks are bombarded with a high-energy electron beam of 25 to 250 MeV to produce a flux of soft X-rays of 500 eV to 3 keV. Methods of increasing the total X-ray power and making the cross section of the X-ray beam uniform are described. Methods of obtaining the desired X-ray-beam field size, optimum frequency spectrum and eliminating the neutron flux are all described. A method of obtaining a plurality of station operation is also described which makes the process more efficient and economical. The satisfying of these issues makes transition radiation an excellent moderate-priced X-ray source for lithography. 26 figures.

Piestrup, M.A.; Boyers, D.G.; Pincus, C.

1991-12-31T23:59:59.000Z

405

X-ray lithography source  

DOE Patents [OSTI]

A high-intensity, inexpensive X-ray source for X-ray lithography for the production of integrated circuits. Foil stacks are bombarded with a high-energy electron beam of 25 to 250 MeV to produce a flux of soft X-rays of 500 eV to 3 keV. Methods of increasing the total X-ray power and making the cross section of the X-ray beam uniform are described. Methods of obtaining the desired X-ray-beam field size, optimum frequency spectrum and elminating the neutron flux are all described. A method of obtaining a plurality of station operation is also described which makes the process more efficient and economical. The satisfying of these issues makes transition radiation an exellent moderate-priced X-ray source for lithography.

Piestrup, Melvin A. (Woodside, CA); Boyers, David G. (Mountain View, CA); Pincus, Cary (Sunnyvale, CA)

1991-01-01T23:59:59.000Z

406

The Idaho National Engineering and Environmental Laboratory Source Water Assessment  

SciTech Connect (OSTI)

The Idaho National Engineering and Environmental Laboratory (INEEL) covers approximately 890 square miles and includes 12 public water systems that must be evaluated for Source water protection purposes under the Safe Drinking Water Act. Because of its size and location, six watersheds and five aquifers could potentially affect the INEEL's drinking water sources. Based on a preliminary evaluation of the available information, it was determined that the Big Lost River, Birch Creek, and Little Lost River Watersheds and the eastern Snake River Plain Aquifer needed to be assessed. These watersheds were delineated using the United States Geologic Survey's Hydrological Unit scheme. Well capture zones were originally estimated using the RESSQC module of the Environmental Protection Agency's Well Head Protection Area model, and the initial modeling assumptions and results were checked by running several scenarios using Modflow modeling. After a technical review, the resulting capture zones were expanded to account for the uncertainties associated with changing groundwater flow directions, a this vadose zone, and other data uncertainties. Finally, all well capture zones at a given facility were merged to a single wellhead protection area at each facility. A contaminant source inventory was conducted, and the results were integrated with the well capture zones, watershed and aquifer information, and facility information using geographic information system technology to complete the INEEL's Source Water Assessment. Of the INEEL's 12 public water systems, three systems rated as low susceptibility (EBR-1, Main Gate, and Gun Range), and the remainder rated as moderate susceptibility. No INEEL public water system rated as high susceptibility. We are using this information to develop a source water management plan from which we will subsequently implement an INEEL-wide source water management program. The results are a very robust set of wellhead protection areas that will protect the INEEL's public water systems yet not too conservative to inhibit the INEEL from carrying out its missions.

Sehlke, G.

2003-03-17T23:59:59.000Z

407

Cesium Delivery System for Negative Ion Source at IPR  

SciTech Connect (OSTI)

The technique of surface production of negative ions using cesium, Cs, has been efficiently exploited over the years for producing negative ion beams with increased current densities from negative ion sources used on neutral beam lines. Deposition of Cs on the source walls and the plasma grid lowers the work function and therefore enables a higher yield of H{sup -}, when hydrogen particles (H and/or H{sub x}{sup +}) strike these surfaces.A single driver RF based (100 kW, 1 MHz) negative ion source test bed, ROBIN, is being set up at IPR under a technical collaboration between IPR and IPP, Germany. The optimization of the Cs oven design to be used on this facility as well as multidriver sources is underway. The characterization experiments of such a Cs delivery system with a 1 g Cs inventory have been carried out using surface ionization technique. The experiments have been carried by delivering Cs into a vacuum chamber without plasma. The linear motion of the surface ionization detector, SID, attached with a linear motion feedthrough allows measuring the angular distribution of the Cs coming out of the oven. Based on the experimental results, a Cs oven for ROBIN has been proposed. The Cs oven design and experimental results of the prototype Cs oven are reported and discussed in the paper.

Bansal, G.; Pandya, K.; Soni, J.; Gahlaut, A.; Parmar, K. G. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, 382 428 (India); Bandyopadhyay, M.; Chakraborty, A.; Singh, M. J. [ITER- India, Institute for Plasma Research, A-29, Sector 25, GIDC, Gandhinagar, Gujarat (India)

2011-09-26T23:59:59.000Z

408

Far-infrared Point Sources  

E-Print Network [OSTI]

The analysis of the submm anisotropies that will be mapped by the forthcoming MAP and PLANCK satellites requires careful foreground subtraction before measuring CMB fluctuations. Among these, the foreground due to IR/submm thermal radiation from dusty sources was poorly known until recent observational breakthroughs began unveiling the properties of these objects. We hereafter briefly review the observational evidence for a strong evolution of IR/submm sources with respect to the local universe explored by IRAS. We present the basic principles of a new modeling effort where consistent spectral energy distributions of galaxies are implemented into the paradigm of hierarchical clustering with the fashionable semi-analytic approach. This model provides us with specific predictions in IR/submm wavebands, that seem to reproduce the current status of the observations and help assessing the capabilities of forthcoming instruments to pursue the exploration of the deep universe at IR/submm wavelengths. Finally, the ability of the PLANCK High Frequency Instrument all-sky survey to produce a catalogue of dusty sources at submm wavelengths is briefly described.

B. Guiderdoni

1999-03-08T23:59:59.000Z

409

Single Atoms on an Optical Nanofiber  

E-Print Network [OSTI]

We show that single-atoms can be trapped on the surface of a subwavelength-diameter silica-fiber, an optical nanofiber, without any external field, and that single photons spontaneously emitted from the atoms can be readily detected through the single guided-mode of the nanofiber. A key point of the work is our finding that atom trapping sites are created on the nanofiber surface by irradiating the atom cloud around the nanofiber with a violet laser radiation.

Nayak, K P

2007-01-01T23:59:59.000Z

410

Single Atoms on an Optical Nanofiber  

E-Print Network [OSTI]

We show that single-atoms can be trapped on the surface of a subwavelength-diameter silica-fiber, an optical nanofiber, without any external field, and that single photons spontaneously emitted from the atoms can be readily detected through the single guided-mode of the nanofiber. A key point of the work is our finding that atom trapping sites are created on the nanofiber surface by irradiating the atom cloud around the nanofiber with a violet laser radiation.

K. P. Nayak; K. Hakuta

2007-09-18T23:59:59.000Z

411

Field Test of High Efficiency Residential Buildings with Ground-source and Air-source Heat Pump Systems  

SciTech Connect (OSTI)

This paper describes the field performance of space conditioning and water heating equipment in four single-family residential structures with advanced thermal envelopes. Each structure features a different, advanced thermal envelope design: structural insulated panel (SIP); optimum value framing (OVF); insulation with embedded phase change materials (PCM) for thermal storage; and exterior insulation finish system (EIFS). Three of the homes feature ground-source heat pumps (GSHPs) for space conditioning and water heating while the fourth has a two-capacity air-source heat pump (ASHP) and a heat pump water heater (HPWH). Two of the GCHP-equipped homes feature horizontal ground heat exchange (GHX) loops that utillize the existing foundation and utility service trenches while the third features a vertical borehole with vertical u-tube GHX. All of the houses were operated under the same simulated occupancy conditions. Operational data on the house HVAC/Water heating (WH) systems are presented and factors influencing overall performance are summarized.

Ally, Moonis Raza [ORNL] [ORNL; Munk, Jeffrey D [ORNL] [ORNL; Baxter, Van D [ORNL] [ORNL

2011-01-01T23:59:59.000Z

412

State of the Art of Air-source Heat Pump for Cold Regions  

E-Print Network [OSTI]

In this paper, research on air source heat pump systems for cold regions in recent years is first summarized and compared. These systems can be divided into three kinds: a single-stage compression heat pump, liquid/vapor injection heat pump, and a...

Tian, C.; Liang, N.

2006-01-01T23:59:59.000Z

413

Arrays and Cascades of Fluorescent Liquid-Liquid Waveguides: Broadband Light Sources for  

E-Print Network [OSTI]

Arrays and Cascades of Fluorescent Liquid-Liquid Waveguides: Broadband Light Sources) microchannel waveguides with liquid cores containing fluorescent dyes, excited by incident light from an external halogen bulb. Simultaneous use of multiple fluorophores in a common solution, in a single L2 light

Prentiss, Mara

414

BY SHAWN XU, Ph.D. Ground Source Heat Pumps Serve  

E-Print Network [OSTI]

BY SHAWN XU, Ph.D. 1 Ground Source Heat Pumps Serve A Large; BY SHAWN XU, Ph.D. 7 Loop Func>ons Seasonal storage (Single output) Hourly buffering (Dual output) #12; BY SHAWN XU, Ph.D. 8 Ground Loops Ground

415

Plumeridge interaction along the Galapagos Spreading Center: discerning between gas loss and source effects using neon  

E-Print Network [OSTI]

by a simple model of Rayleigh distillation, with a single volatile source composition for the entire GSC. Magma fractional crystallisation, which increases in the plume influenced zone, seems to be the main of the fractionation processes. Numerous recent works (morphological, geophysical and geochemical studies) have

Graham, David W.

416

High Throughput Single Molecule Investigation of Transcription  

E-Print Network [OSTI]

Single Molecule Protein Folding in a Coaxial Mixer. Biophys.Kinetic Studies of Protein Folding. Anal. Chem. 76, 7169-Molecule Measurement of Protein Folding Kinetics . Science

Kim, Soohong

2012-01-01T23:59:59.000Z

417

Electron transport through single carbon nanotubes  

E-Print Network [OSTI]

through single carbon nanotubes G. Chai Apollo Technologies,aligned multi-wall carbon nanotubes (CNT). Embedding of CNTsuse of fiber coated carbon nanotubes makes the handling of

Chai, G

2008-01-01T23:59:59.000Z

418

Electron transport through single carbon nanotubes  

E-Print Network [OSTI]

transport through single carbon nanotubes G. Chai Apolloaligned multi-wall carbon nanotubes (CNT). Embedding of CNTsuse of fiber coated carbon nanotubes makes the handling of

Chai, G

2008-01-01T23:59:59.000Z

419

High Throughput Single Molecule Investigation of Transcription  

E-Print Network [OSTI]

Squires, T. & Quake, S. Microfluidics: Fluid physics at themerged two techniques: microfluidics and single- moleculeassay equipped with microfluidics. Chapter three describes

Kim, Soohong

2012-01-01T23:59:59.000Z

420

Microfluidics for investigating single-cell biodynamics.  

E-Print Network [OSTI]

??Progress in synthetic biology requires the development of novel techniques for investigating long-term dynamics in single cells. Here, we demonstrate the utility of microfluidics for (more)

Cookson, Scott Warren

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

{sup 103}Pd strings: Monte Carlo assessment of a new approach to brachytherapy source design  

SciTech Connect (OSTI)

Purpose: A new type of{sup 103}Pd source (CivaString and CivaThin by CivaTech Oncology, Inc.) is examined. The source contains {sup 103}Pd and Au radio-opaque marker(s), all contained within low-Z{sub eff} organic polymers that permit source flexibility. The CivaString source is available in lengths L of 10, 20, 30, 40, 50, and 60 mm, and referred to in the current study as CS10CS60, respectively. A thinner design, CivaThin, has sources designated as CT10CT60, respectively. The CivaString and CivaThin sources are 0.85 and 0.60 mm in diameter, respectively. The source design is novel and offers an opportunity to examine its interesting dosimetric properties in comparison to conventional {sup 103}Pd seeds. Methods: The MCNP5 radiation transport code was used to estimate air-kerma rate and dose rate distributions with polar and cylindrical coordinate systems. Doses in water and prostate tissue phantoms were compared to determine differences between the TG-43 formalism and realistic clinical circumstances. The influence of Ti encapsulation and 2.7 keV photons was examined. The accuracy of superposition of dose distributions from shorter sources to create longer source dose distributions was also assessed. Results: The normalized air-kerma rate was not highly dependent onL or the polar angle ?, with results being nearly identical between the CivaString and CivaThin sources for common L. The air-kerma strength was also weakly dependent on L. The uncertainty analysis established a standard uncertainty of 1.3% for the dose-rate constant ?, where the largest contributors were ?{sub en}/? and ?/?. The ? values decreased with increasing L, which was largely explained by differences in solid angle. The radial dose function did not substantially vary among the CivaString and CivaThin sources for r ? 1 cm. However, behavior for r < 1 cm indicated that the Au marker(s) shielded radiation for the sources having L = 10, 30, and 50 mm. The 2D anisotropy function exhibited peaks and valleys that corresponded to positions adjacent to {sup 103}Pd wells and Au markers, respectively. Dose distributions of both source types had minimal anisotropy in comparison to conventional {sup 103}Pd seeds. Contributions by 2.7 keV photons comprised ?0.1% of the dose from all photons at positions farther than 0.13 mm from the polymer source surface. Differences between absorbed dose to water and prostate became more substantial as distance from the sources increased, with prostate dose being about 13% lower for r = 5 cm. Using a cylindrical coordinate system, dose superposition of small length sources to replicate the dose distribution for a long length source proved to be a robust technique; a 2.0% tolerance compared with the reference dose distribution did not exceed 0.1 cm{sup 3} for any of the examined source combinations. Conclusions: By design, the CivaString and CivaThin sources have novel dosimetric characteristics in comparison to Ti-encapsulated{sup 103}Pd seeds. The dosimetric characterization has determined the reasons for these differences through analysis using Monte Carlo-based radiation transport simulations.

Rivard, Mark J., E-mail: mark.j.rivard@gmail.com [Department of Radiation Oncology, Tufts University School of Medicine, Boston, Massachusetts 02111 (United States); Reed, Joshua L.; DeWerd, Larry A. [Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53705 (United States)] [Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53705 (United States)

2014-01-15T23:59:59.000Z

422

Compact x-ray source and panel  

DOE Patents [OSTI]

A compact, self-contained x-ray source, and a compact x-ray source panel having a plurality of such x-ray sources arranged in a preferably broad-area pixelized array. Each x-ray source includes an electron source for producing an electron beam, an x-ray conversion target, and a multilayer insulator separating the electron source and the x-ray conversion target from each other. The multi-layer insulator preferably has a cylindrical configuration with a plurality of alternating insulator and conductor layers surrounding an acceleration channel leading from the electron source to the x-ray conversion target. A power source is connected to each x-ray source of the array to produce an accelerating gradient between the electron source and x-ray conversion target in any one or more of the x-ray sources independent of other x-ray sources in the array, so as to accelerate an electron beam towards the x-ray conversion target. The multilayer insulator enables relatively short separation distances between the electron source and the x-ray conversion target so that a thin panel is possible for compactness. This is due to the ability of the plurality of alternating insulator and conductor layers of the multilayer insulators to resist surface flashover when sufficiently high acceleration energies necessary for x-ray generation are supplied by the power source to the x-ray sources.

Sampayon, Stephen E. (Manteca, CA)

2008-02-12T23:59:59.000Z

423

Investigations into the Optimization of Multi-Source Strength Brachytherapy Treatment Procedures  

SciTech Connect (OSTI)

The goal of this project is to investigate the use of multi-strength and multi-specie radioactive sources in permanent prostate implant brachytherapy. In order to fulfill the requirement for an optimal dose distribution, the prescribed dose should be delivered to the target in a nearly uniform dose distribution while simultaneously sparing sensitive structures. The treatment plan should use a small number of needles and sources while satisfying the treatment requirements. The hypothesis for the use of multi-strength and/or multi-specie sources is that a better treatment plan using fewer sources and needles could be obtained than by treatment plans using single-strength sources could reduce the overall number of sources used for treatment. We employ a recently developed greedy algorithm based on the adjoint concept as the optimization search engine. The algorithm utilizes and ''adjoint ratio'', which provides a means of ranking source positions, as the pseudo-objective function. It ha s been shown that the greedy algorithm can solve the optimization problem efficiently and arrives at a clinically acceptable solution in less than 10 seconds. Our study was inclusive, that is there was no combination of sources that clearly stood out from the others and could therefore be considered the preferred set of sources for treatment planning. Source strengths of 0.2 mCi (low), 0.4 mCi (medium), and 0.6 mCi (high) of {sup 125}I in four different combinations were used for the multi-strength source study. The combination of high- and medium-strength sources achieved a more uniform target dose distribution due to few source implants whereas the combination of low-and medium-strength sources achieved better sparing of sensitive tissues including that of the single-strength 0.4 mCi base case. {sup 125}I at 0.4 mCi and {sup 192}Ir at 0.12 mCi and 0.25 mCi source strengths were used for the multi-specie source study. This study also proved inconclusive , Treatment plans using a combination of two 0.12 mCi {sup 192}Ir sources and {sup 125}I sources or a combination of two 0.25 mCi {sup 192}Ir sources and {sup 125}I sources did not have better target and sensitive structures DVHs than that of the single specie {sup 125}I 0.4 mCi base case. However, because of the high dose delivered by a {sup 192}Ir source, the multi-specie treatment plan required fewer sources and needles and hence is less invasive than the treatment plan for the 0/4 mCi {sup 125}I base case.

D. L. Henderson; S. Yoo; B.R. Thomadsen

2002-09-30T23:59:59.000Z

424

The Single Pass Multi-component Harvester  

SciTech Connect (OSTI)

The authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural Engineers (ASAE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations are not subject to the formal peer review process by ASAE editorial committees; therefore, they are not to be presented as refereed publications. Citation of this work should state that it is from an ASAE meeting paper. EXAMPLE: Author's Last Name, Initials. 2004. Title of Presentation. ASAE Paper No. 04xxxx. St. Joseph, Mich.: ASAE. For information about securing permission to reprint or reproduce a technical presentation, please contact ASAE at hq@asae.org or 269-429-0300 (2950 Niles Road, St. Joseph, MI 49085-9659 USA). Abstract. In order to meet the U. S. governments goal of supplementing the energy available from petroleum by increasing the production of energy from renewable resources, increased production of bioenergy has become one of the new goals of the United States government and our society. U.S. Executive Orders and new Federal Legislation have mandated changes in government procedures and caused reorganizations within the government to support these goals. The Biomass Research and Development Initiative is a multi-agency effort to coordinate and accelerate all U.S. Federal biobased products and bioenergy research and development. The Initiative is managed by the National Biomass Coordination Office, which is staffed by both the DOE and the USDA. One of the most readily available sources of biomass from which to produce bioenergy is an agricultural crop residue, of which straw from small grains is the most feasible residue with which to start. For the straw residue to be used its collection must be energy efficient and its removal must not impact the sustainability of the growing environment. In addition, its collection must be economically advantageous to the producer. To do all that, a single pass multi-component harvester system is most desirable. Results from our first prototype suggest that current combines probably do adequate threshing and that a separate chassis can be developed that does additional separation and that is economically feasible.

Reed Hoskinson; John R. Hess

2004-08-01T23:59:59.000Z

425

Detecting fission from special nuclear material sources  

DOE Patents [OSTI]

A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a graphing component that displays the plot of the neutron distribution from the unknown source over a Poisson distribution and a plot of neutrons due to background or environmental sources. The system further includes a known neutron source placed in proximity to the unknown source to actively interrogate the unknown source in order to accentuate differences in neutron emission from the unknown source from Poisson distributions and/or environmental sources.

Rowland, Mark S. (Alamo, CA); Snyderman, Neal J. (Berkeley, CA)

2012-06-05T23:59:59.000Z

426

X-Ray Observations of Unidentified H.E.S.S. Gamma-Ray Sources  

SciTech Connect (OSTI)

In a survey of the inner part of the Galaxy, performed with the H.E.S.S. Instrument (High energy stereoscopic system) in 2004 and 2005, a large number of new unidentified very high energy (VHE) {gamma}-ray sources above an energy of 100 GeV was discovered. Often the {gamma}-ray spectra in these sources reach energies of up to {approx} 10 TeV. These are the highest energy particles ever attributed to single astrophysical objects. While a few of these sources can be identified at other wavebands, most of these sources remain unidentified so far. A positive identification of these new g-ray sources with a counterpart object at other wavebands requires (a) a positional coincidence between the two sources,( b) a viable {gamma}-ray emission mechanism and (c) a consistent multiwavelength behavior of the two sources. X-ray observations with satellites such as XMM-Newton, Chandra or Suzaku provide one of the best channels to studying these enigmatic {gamma}-ray sources at other wavebands, since they combine high angular resolution and sensitivity with the ability to access non-thermal electrons through their synchrotron emission. We therefore have started a dedicated program to investigate VHE {gamma}-ray sources with high-sensitivity X-ray instruments.

Funk, S.; /SLAC

2007-10-10T23:59:59.000Z

427

A Statistical Framework for Microbial Source Attribution  

SciTech Connect (OSTI)

This report presents a general approach to inferring transmission and source relationships among microbial isolates from their genetic sequences. The outbreak transmission graph (also called the transmission tree or transmission network) is the fundamental structure which determines the statistical distributions relevant to source attribution. The nodes of this graph are infected individuals or aggregated sub-populations of individuals in which transmitted bacteria or viruses undergo clonal expansion, leading to a genetically heterogeneous population. Each edge of the graph represents a transmission event in which one or a small number of bacteria or virions infects another node thus increasing the size of the transmission network. Recombination and re-assortment events originate in nodes which are common to two distinct networks. In order to calculate the probability that one node was infected by another, given the observed genetic sequences of microbial isolates sampled from them, we require two fundamental probability distributions. The first is the probability of obtaining the observed mutational differences between two isolates given that they are separated by M steps in a transmission network. The second is the probability that two nodes sampled randomly from an outbreak transmission network are separated by M transmission events. We show how these distributions can be obtained from the genetic sequences of isolates obtained by sampling from past outbreaks combined with data from contact tracing studies. Realistic examples are drawn from the SARS outbreak of 2003, the FMDV outbreak in Great Britain in 2001, and HIV transmission cases. The likelihood estimators derived in this report, and the underlying probability distribution functions required to calculate them possess certain compelling general properties in the context of microbial forensics. These include the ability to quantify the significance of a sequence 'match' or 'mismatch' between two isolates; the ability to capture non-intuitive effects of network structure on inferential power, including the 'small world' effect; the insensitivity of inferences to uncertainties in the underlying distributions; and the concept of rescaling, i.e. ability to collapse sub-networks into single nodes and examine transmission inferences on the rescaled network.

Velsko, S P; Allen, J E; Cunningham, C T

2009-04-28T23:59:59.000Z

428

Multigamma-ray calibration sources  

SciTech Connect (OSTI)

We have calibrated a self-consistent set of multigamma-ray standards using the automated multi-spectrometry ..gamma..-ray counting facility at LLNL's Nuclear Chemistry Division. Pure sources of long-lived activity were produced by mass separation and/or chemical purification. The sources were counted individually and in combination on several different calibrated spectrometer systems. These systems utilize various detectors ranging from small (x-ray) detectors to large volume high-purity Ge detectors. This has allowed the use of the most ideal individual detector-efficiency characteristics for the determination of the relative ..gamma..-ray intensities. Precise energy measurements, reported earlier (Meyer, 1976) have been performed by an independent method. Both the energy and ..gamma..-ray-emission probabilities determined compare well with independently established values such as the recent ICRM intercomparison of /sup 152/Eu. We discuss our investigations aimed at resolving the shape of the efficiency response function up to 10 MeV for large volume Ge(Li) and high-purity Ge detectors. Recent results on the ..gamma..-ray-emission probabilities per decay for /sup 149/Gd and /sup 168/Tm multigamma-ray sources are discussed. For /sup 168/Tm, we deduce a 0.01% ..beta../sup -/ branch to the 87.73-keV level in /sup 168/Yb rather than the previous value which was a factor of 200 greater. In addition, we describe current cooperative efforts aimed at establishing a consistent set of data for short-lived fission products. Included are recent measurements on the bromine fission products with ..gamma.. rays up to 7 MeV.

Meyer, R.A.; Massey, T.N.

1983-05-01T23:59:59.000Z

429

Thermopower, electrical and Hall conductivity of undoped and doped iron disilicide single crystals  

SciTech Connect (OSTI)

The electrical transport properties of {beta}-FeSi{sub 2} single crystals have been investigated in dependence on the purity of the source material and on doping with 3d transition metals. The transport properties included are electrical conductivity, Hall conductivity and thermopower mainly in the temperature range from 4K to 300K. The single crystals have been prepared by chemical transport reaction in a closed system with iodine as transport agent. In undoped single crystals prepared with 5N Fe both electrical conductivity and thermopower depend on the composition within the homogeneity range of {beta}-FeSi{sub 2} which is explained by different intrinsic defects at the Si-rich and Fe-rich phase boundaries. In both undoped and doped single crystals impurity band conduction is observed at low temperatures but above 100K extrinsic behavior determined by shallow impurity states. The thermopower shows between 100K and 200K a significant phonon drag contribution which depends on intrinsic defects and additional doping. The Hall resistivity is considered mainly with respect to an anomalous contribution found in p-type and n-type single crystals and thin films. In addition doped single crystals show at temperatures below about 130K an hysteresis of the Hall voltage. These results make former mobility data uncertain. Comparison will be made between the transport properties of single crystals and polycrystalline material.

Heinrich, A.; Behr, G.; Griessmann, H.; Teichert, S.; Lange, H.

1997-07-01T23:59:59.000Z

430

CHINA SPALLATION NEUTRON SOURCE DESIGN.  

SciTech Connect (OSTI)

The China Spallation Neutron Source (CSNS) is an accelerator-based high-power project currently in preparation under the direction of the Chinese Academy of Sciences (CAS). The complex is based on an H- linear accelerator, a rapid cycling proton synchrotron accelerating the beam to 1.6 GeV, a solid tungsten target station, and five initial instruments for spallation neutron applications. The facility will operate at 25 Hz repetition rate with a phase-I beam power of about 120 kW. The major challenge is to build a robust and reliable user's facility with upgrade potential at a fractional of ''world standard'' cost.

WEI,J.

2007-01-29T23:59:59.000Z

431

Gamma source for active interrogation  

DOE Patents [OSTI]

A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. The plasma generator emanates ions radially over 360.degree. and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired.

Leung, Ka-Ngo; Lou, Tak Pui; Barletta, William A.

2012-10-02T23:59:59.000Z

432

Relating to monitoring ion sources  

DOE Patents [OSTI]

The apparatus and method provide techniques for monitoring the position on alpha contamination in or on items or locations. The technique is particularly applicable to pipes, conduits and other locations to which access is difficult. The technique uses indirect monitoring of alpha emissions by detecting ions generated by the alpha emissions. The medium containing the ions is moved in a controlled manner frog in proximity with the item or location to the detecting unit and the signals achieved over time are used to generate alpha source position information.

Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM); Bounds, John Alan (Los Alamos, NM)

2002-01-01T23:59:59.000Z

433

Ion Sources - 88-Inch Cyclotron  

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 Jun Jul(Summary)morphinanInformation Desert Southwest Region service area.PortaldefaultIntroducing AuroraInvestorPagesSources

434

Computer Science BSc (Single Honours Degree)  

E-Print Network [OSTI]

72 Computer Science BSc (Single Honours Degree) Computer Science BSc (Joint Honours Degrees) Computer Science and one of: Economics Logic and Philosophy of Science Management Management Science MSci (Single Honours Degree) Computer Science Entry Requirements (see also pages 152-189) The likely grades

Brierley, Andrew

435

Petar Ljusev SIngle Conversion stage AMplifier  

E-Print Network [OSTI]

. The proposed SICAM solution strives for direct energy conversion from the mains to the audio outputPetar Ljusev SIngle Conversion stage AMplifier - SICAM PhD thesis, December 2005 #12;#12;To Elena of the project "SICAM - SIngle Conversion stage AMplifier", funded by the Danish Energy Authority under the EFP

436

Budget Adjustment Single Sided Budget Adjustment  

E-Print Network [OSTI]

Budget Adjustment & Single Sided Budget Adjustment WELCOME! #12;Accessing Kuali Campus://busfin.colostate.edu #12;What will be covered today? When should I use a Budget Adjustment (BA) or Single Sided Budget Error correction Onesided vs. singlesided entries #12;When to use a Budget Adjustment How do I know

Stephens, Graeme L.

437

Ames Lab 101: Single Crystal Growth  

ScienceCinema (OSTI)

Ames Laboratory scientist Deborah Schlagel talks about the Lab's research in growing single crystals of various metals and alloys. The single crystal samples are vital to researchers' understanding of the characteristics of a materials and what gives these materials their particular properties.

Schlagel, Deborah

2014-06-04T23:59:59.000Z

438

Susanta Kumar Sarkar Single Molecule Biophysics Laboratory  

E-Print Network [OSTI]

Susanta Kumar Sarkar Single Molecule Biophysics Laboratory Department of Physics 1523 Illinois. 1994 ­ 1995 National Scholarship. Government of India. PUBLICATIONS 1. Susanta K. Sarkar, Ambika Bumb/711702 (2012). 2. Susanta K. Sarkar, Ambika Bumb, Maria Mills, and Keir C. Neuman. Single-Molecule Fluorescence

439

Repatriation of US sources from Brazil  

SciTech Connect (OSTI)

IAEA's interest in excess and unwanted sealed sources extends back to when radium sources were a problem throughout the world. Sta11ing in 1994, world wide IAEA member states inventoried and consolidated radium (Ra)-226 sources. IAEA then trained Regional Teams in the conditioning of Ra-226 sealed sources for long term storage, which resulted in the Regional Teams conditioning about 14,000 radium sources. These sources remained in their respective IAEA member state locations. Regional teams were seen as a way to encourage member state (local) management of a world wide problem, as well as a more cost effective solution.

Tompkins, Andrew J [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

440

Quantum Transduction of Telecommunications-band Single Photons from a Quantum Dot by Frequency Upconversion  

E-Print Network [OSTI]

The ability to transduce non-classical states of light from one wavelength to another is a requirement for integrating disparate quantum systems that take advantage of telecommunications-band photons for optical fiber transmission of quantum information and near-visible, stationary systems for manipulation and storage. In addition, transducing a single-photon source at 1.3 {\\mu}m to visible wavelengths for detection would be integral to linear optical quantum computation due to the challenges of detection in the near-infrared. Recently, transduction at single-photon power levels has been accomplished through frequency upconversion, but it has yet to be demonstrated for a true single-photon source. Here, we transduce the triggered single-photon emission of a semiconductor quantum dot at 1.3 {\\mu}m to 710 nm with a total detection (internal conversion) efficiency of 21% (75%). We demonstrate that the 710 nm signal maintains the quantum character of the 1.3 {\\mu}m signal, yielding a photon anti-bunched second-order intensity correlation, g^(2)(t), that shows the optical field is composed of single photons with g^(2)(0) = 0.165 < 0.5.

Matthew T. Rakher; Lijun Ma; Oliver Slattery; Xiao Tang; Kartik Srinivasan

2011-08-19T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Multi-Item Single-Vendor-Single-Buyer Problem with Consideration of Transportation Quantity Discount  

E-Print Network [OSTI]

This paper deals with the problem of shipping multiple commodities from a single vendor to a single buyer. Each commodity is assumed to be constantly consumed at the buyer, and periodically replenished from the vendor. ...

Wang, Ye-Xin

442

Fluid jet electric discharge source  

DOE Patents [OSTI]

A fluid jet or filament source and a pair of coaxial high voltage electrodes, in combination, comprise an electrical discharge system to produce radiation and, in particular, EUV radiation. The fluid jet source is composed of at least two serially connected reservoirs, a first reservoir into which a fluid, that can be either a liquid or a gas, can be fed at some pressure higher than atmospheric and a second reservoir maintained at a lower pressure than the first. The fluid is allowed to expand through an aperture into a high vacuum region between a pair of coaxial electrodes. This second expansion produces a narrow well-directed fluid jet whose size is dependent on the size and configuration of the apertures and the pressure used in the reservoir. At some time during the flow of the fluid filament, a high voltage pulse is applied to the electrodes to excite the fluid to form a plasma which provides the desired radiation; the wavelength of the radiation being determined by the composition of the fluid.

Bender, Howard A. (Ripon, CA)

2006-04-25T23:59:59.000Z

443

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement  

E-Print Network [OSTI]

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement Tempe AZ USA 85287 rajub@asu.edu, rao@asu.edu ABSTRACT One immediate challenge in searching the deep web-similarity-based relevance assess- ment. When applied to the deep web these methods have two deficiencies. First

Kambhampati, Subbarao

444

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement  

E-Print Network [OSTI]

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement. Existing methods have two deficiencies for applying to the open col- lections like the deep web. First query in the deep web, the agreements between theses an- swer sets are likely to be helpful in assessing

Kambhampati, Subbarao

445

Experimental determination of the elastic cotunneling rate in a hybrid single-electron box  

SciTech Connect (OSTI)

We report measurements of charge configurations and charge transfer dynamics in a hybrid single-electron box composed of aluminum and copper. We used two single-electron transistors (SETs) to simultaneously read out different parts of the box, enabling us to map out stability diagrams of the box and identify various charge transfer processes in the box. We further characterized the elastic cotunneling in the box, which is an important source of error in electron turnstiles consisting of hybrid SETs, and found that the rate was as low as 1?Hz at degeneracy and compatible with theoretical estimates for electron tunneling via virtual states in the central superconducting island of the box.

Sun, Chia-Heng; Tai, Po-Chen; Chen, Yung-Fu, E-mail: yfuchen@ncu.edu.tw [Department of Physics, National Central University, Jhongli 32001, Taiwan (China); Jiang, Jheng-An; Wu, Cen-Shawn [Department of Physics, National Changhua University of Education, Changhua 500, Taiwan (China); Chen, Jeng-Chung [Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan (China)

2014-06-09T23:59:59.000Z

446

Discharge, source areas, and water ages of spring-fed streams and implications for water management in the  

E-Print Network [OSTI]

for flood control and hydroelectric power generation, and Oregon's second largest city (Eugene), which draws

447

Problems with packaged sources in foreign countries  

SciTech Connect (OSTI)

The Global Threat Reduction Initiative's (GTRI) Off-Site Source Recovery Project (OSRP), which is administered by the Los Alamos National Laboratory (LANL), removes excess, unwanted, abandoned, or orphan radioactive sealed sources that pose a potential threat to national security, public health, and safety. In total, GTRI/OSRP has been able to recover more than 25,000 excess and unwanted sealed sources from over 825 sites. In addition to transuranic sources, the GTRI/OSRP mission now includes recovery of beta/gamma emitting sources, which are of concern to both the U.S. government and the International Atomic Energy Agency (IAEA). This paper provides a synopsis of cooperative efforts in foreign countries to remove excess and unwanted sealed sources by discussing three topical areas: (1) The Regional Partnership with the International Atomic Energy Agency; (2) Challenges in repatriating sealed sources; and (3) Options for repatriating sealed sources.

Abeyta, Cristy L [Los Alamos National Laboratory; Matzke, James L [Los Alamos National Laboratory; Zarling, John [Los Alamos National Laboratory; Tompkin, J. Andrew [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

448

Dairy Biomass as a Renewable Fuel Source  

E-Print Network [OSTI]

biomass. This publication explains the properties of dairy manure that could make it an excellent source of fuel....

Mukhtar, Saqib; Goodrich, Barry; Engler, Cady; Capareda, Sergio

2008-03-19T23:59:59.000Z

449

The Political Economy of Open Source Software  

E-Print Network [OSTI]

Accidental Revolutionary. Sebastopol: O'Reilly Publishing,Open Source Revolution. Sebastopol: O'Reilly, 1999. p. 54).

Weber, Steven

2000-01-01T23:59:59.000Z

450

North Village Ground Source Heat Pumps  

Broader source: Energy.gov [DOE]

Overview: Installation of Ground Source Heat Pumps. Replacement of Aging Heat Pumps. Alignment with Furmans Sustainability Goals.

451

Josephson device with a matched rf source  

SciTech Connect (OSTI)

Analog simulation of a resistance-shunted ac Josephson junction coupled to an rf source with matching impedance reveals (1) added structure in the device's V-I curve even when the source is quiescent and (2) rf-induced steps with peak amplitudes between those produced by voltage and current rf sources. Both results are consistent with experimental data.

Longacre, A. Jr.

1980-03-01T23:59:59.000Z

452

Memorandum, Reporting of Radiological Sealed Sources Transactions  

Broader source: Energy.gov [DOE]

The requirements for reporting transactions involving radiological sealed sources are identified in Department of Energy (DOE) Notice (N) 234.1, Reporting of Radioactive Sealed Sources. The data reported in accordance with DOE N 234.1 are maintained in the DOE Radiological Source Registry and Tracking (RSRT) database by the Office of Information Management, within the Office of Environment, Health, Safety and Security.

453

Spallation Neutron Sources Around the World  

E-Print Network [OSTI]

Spallation Neutron Sources Around the World Bernie Riemer Thanks to others for the many shamelessly Laboratory #12;2 Managed by UT-Battelle for the U.S. Department of Energy Spallation Neutron Source Facilities Spallation Neutron Source Facilities Serve Neutron Science Programs · Neutron beams to suites

McDonald, Kirk

454

Conventional power sources for colliders  

SciTech Connect (OSTI)

At SLAC we are developing high peak-power klystrons to explore the limits of use of conventional power sources in future linear colliders. In an experimental tube we have achieved 150 MW at 1 ..mu..sec pulse width at 2856 MHz. In production tubes for SLAC Linear Collider (SLC) we routinely achieve 67 MW at 3.5 ..mu..sec pulse width and 180 pps. Over 200 of the klystrons are in routine operation in SLC. An experimental klystron at 8.568 GHz is presently under construction with a design objective of 30 MW at 1 ..mu..sec. A program is starting on the relativistic klystron whose performance will be analyzed in the exploration of the limits of klystrons at very short pulse widths.

Allen, M.A.

1987-07-01T23:59:59.000Z

455

Solenoid and monocusp ion source  

DOE Patents [OSTI]

An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures. 6 figs.

Brainard, J.P.; Burns, E.J.T.; Draper, C.H.

1997-10-07T23:59:59.000Z

456

Neutron source reconstruction from pinhole imaging at National Ignition Facility  

SciTech Connect (OSTI)

The neutron imaging system at the National Ignition Facility (NIF) is an important diagnostic tool for measuring the two-dimensional size and shape of the neutrons produced in the burning deuterium-tritium plasma during the ignition stage of inertial confinement fusion (ICF) implosions at NIF. Since the neutron source is small (?100 ?m) and neutrons are deeply penetrating (>3 cm) in all materials, the apertures used to achieve the desired 10-?m resolution are 20-cm long, single-sided tapers in gold. These apertures, which have triangular cross sections, produce distortions in the image, and the extended nature of the pinhole results in a non-stationary or spatially varying point spread function across the pinhole field of view. In this work, we have used iterative Maximum Likelihood techniques to remove the non-stationary distortions introduced by the aperture to reconstruct the underlying neutron source distributions. We present the detailed algorithms used for these reconstructions, the stopping criteria used and reconstructed sources from data collected at NIF with a discussion of the neutron imaging performance in light of other diagnostics.

Volegov, P.; Danly, C. R.; Grim, G. P.; Guler, N.; Merrill, F. E.; Wilde, C. H.; Wilson, D. C. [Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States); Fittinghoff, D. N.; Izumi, N.; Ma, T.; Warrick, A. L. [Livermore National Laboratory, Livermore, California 94550 (United States)] [Livermore National Laboratory, Livermore, California 94550 (United States)

2014-02-15T23:59:59.000Z

457

Ion source developments for the production of radioactive isotope beams at TRIUMF  

SciTech Connect (OSTI)

At the ISAC facility at TRIUMF radioactive ions are produced by bombarding solid targets with up to 100 ?A of 500 MeV protons. The reaction products have to diffuse out of the hot target into an ion source. Normally, singly charged ions are extracted. They can be transported either directly to experiments or via an ECR charge state breeder to a post accelerator. Several different types of ion sources have to be used in order to deliver a large variety of rare isotope beams. At ISAC those are surface ion sources, forced electron beam arc discharge (FEBIAD) ion sources and resonant laser ionization sources. Recent development activities concentrated on increasing the selectivity for the ionization to suppress isobaric contamination in the beam. Therefore, a surface ion rejecting resonant laser ionization source (SIRLIS) has been developed to suppress ions from surface ionization. For the FEBIAD ion source a cold transfer line has been introduced to prevent less volatile components from reaching the ion source.

Ames, F., E-mail: ames@triumf.ca; Bricault, P.; Heggen, H.; Kunz, P.; Lassen, J.; Mjs, A.; Raeder, S.; Teigelhfer, A. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3 (Canada)] [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3 (Canada)

2014-02-15T23:59:59.000Z

458

Instability of single-phase natural circulation under multiple loops  

SciTech Connect (OSTI)

Natural circulation loop passively conveys heat from heat sources to heat sinks without mechanical pump. Various plants have natural circulation systems, e.g., solar heaters, Light Water Reactor (LWR) and Liquid Metal Fast Breeder Reactor (LMFBR). The core of LMFBR is cooled by forced convection of single-phase liquid sodium in normal operation. After the accident, the decay heat of the core is designed to be cooled by the natural circulation of the liquid sodium. The natural circulation cooling is very important from a viewpoint of passive safety concept. Here, the natural circulation in single loop system had been studied by many researchers. In a multiple loop system, the instability of natural circulation was more complicated because of the interaction between the loops. In this study, the effects of the multiple loop on the natural circulation instability were investigated numerically. The multiple loops system with one heating tube and two cooling tubes were evaluated. The one-dimensional energy and momentum equations were solved using Finite Difference Method. The flow regimes of the instability were evaluated with varying the heat flux. In multiple loop system, the observed flow was classified into five regimes including chaotic regime. The flow regimes were qualitatively explained by the stability of the attractor in the phase space.

Satoh, A.; Okamoto, K.; Madarame, H. [Univ. of Tokyo, Tokai, Ibaraki (Japan). Nuclear Engineering Research Lab.

1996-08-01T23:59:59.000Z

459

Ion source based on the cathodic arc  

DOE Patents [OSTI]

A cylindrically symmetric arc source to produce a ring of ions which leave the surface of the arc target radially and are reflected by electrostatic fields present in the source to a point of use, such as a part to be coated, is described. An array of electrically isolated rings positioned in the source serves the dual purpose of minimizing bouncing of macroparticles and providing electrical insulation to maximize the electric field gradients within the source. The source also includes a series of baffles which function as a filtering or trapping mechanism for any macroparticles. 3 figures.

Sanders, D.M.; Falabella, S.

1994-02-01T23:59:59.000Z

460

Source depth for solar p-modes  

E-Print Network [OSTI]

Theoretically calculated power spectra are compares with observed solar p-mode velocity power spectra over a range of mode degree and frequency. The depth for the sources responsible for exciting p-modes of frequency 2.0 mHz is determined from the asymmetry of their power spectra and found to be about 800 km below the photosphere for quadrupole sources and 150 km if sources are dipole. The source depth for high frequency oscillations of frequency greater than about 6 mHz is 180 (50) km for quadrupole (dipole) sources.

Pawan Kumar; Sarbani Basu

2000-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "largest single source" 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

Spin effects in single-electron transistors  

E-Print Network [OSTI]

Basic electron transport phenomena observed in single-electron transistors (SETs) are introduced, such as Coulomb-blockade diamonds, inelastic cotunneling thresholds, the spin-1/2 Kondo effect, and Fano interference. With ...

Granger, Ghislain

2005-01-01T23:59:59.000Z

462

Single Amplifies Whole Genome Shotgun- Applications  

SciTech Connect (OSTI)

Eric Pelletier of Genoscope discusses new sequencing technology developments to study a single cell at a large scale on June 4, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

Pelletier, Eric [Genoscope

2010-06-04T23:59:59.000Z

463

Control of single spin in Markovian environment  

E-Print Network [OSTI]

In this article we study the control of single spin in Markovian environment. Given an initial state, we compute all the possible states to which the spin can be driven at arbitrary time, under the assumption that fast ...

Yuan, Haidong

464

Single mode pulsed dye laser oscillator  

DOE Patents [OSTI]

A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability.

Hackel, Richard P. (Livermore, CA)

1992-01-01T23:59:59.000Z

465

Single mode pulsed dye laser oscillator  

DOE Patents [OSTI]

A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability. 6 figs.

Hackel, R.P.

1992-11-24T23:59:59.000Z

466

Phenomenology of single and double diffraction dissociation  

E-Print Network [OSTI]

Predictions of the gap-probability renormalization model for single and double diffraction dissociation cross sections in proton-proton collisions at the LHC are presented and compared with recent CMS measurements.

Konstantin Goulianos

2013-10-21T23:59:59.000Z

467

Peoples Gas Single Family Direct Install (Illinois)  

Broader source: Energy.gov [DOE]

Owners of single-family homes, condos, townhomes and two-flats may be eligible for a free installation of new programmable thermostats, pipe insulation, showerheads, and faucet aerators through...

468

Magnetically multiplexed heating of single domain nanoparticles  

E-Print Network [OSTI]

Selective hysteretic heating of multiple collocated types of single domain magnetic nanoparticles (SDMNPs) by alternating magnetic fields (AMFs) may offer a useful tool for biomedical applications. The possibility of ...

Romero, G.

469

38 Single drum dance by Quluatanguaq Jeremiassen  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 38 Length of track 1 minute Title of track Single drum dance by Quluatanguaq Jeremiassen...

Leonard, Stephen Pax

470

Single Stream Recycling Say Goodbye to Sorting  

E-Print Network [OSTI]

Single Stream Recycling Say Goodbye to Sorting Paper Please email recycle@umich.edu for more Containers Cardboard Please flatten all cardboard before placing into bin! Visit us at www.recycle

Awtar, Shorya

471

Single Ion Implantation and Deterministic Doping  

SciTech Connect (OSTI)

The presence of single atoms, e.g. dopant atoms, in sub-100 nm scale electronic devices can affect the device characteristics, such as the threshold voltage of transistors, or the sub-threshold currents. Fluctuations of the number of dopant atoms thus poses a complication for transistor scaling. In a complementary view, new opportunities emerge when novel functionality can be implemented in devices deterministically doped with single atoms. The grand price of the latter might be a large scale quantum computer, where quantum bits (qubits) are encoded e.g. in the spin states of electrons and nuclei of single dopant atoms in silicon, or in color centers in diamond. Both the possible detrimental effects of dopant fluctuations and single atom device ideas motivate the development of reliable single atom doping techniques which are the subject of this chapter. Single atom doping can be approached with top down and bottom up techniques. Top down refers to the placement of dopant atoms into a more or less structured matrix environment, like a transistor in silicon. Bottom up refers to approaches to introduce single dopant atoms during the growth of the host matrix e.g. by directed self-assembly and scanning probe assisted lithography. Bottom up approaches are discussed in Chapter XYZ. Since the late 1960's, ion implantation has been a widely used technique to introduce dopant atoms into silicon and other materials in order to modify their electronic properties. It works particularly well in silicon since the damage to the crystal lattice that is induced by ion implantation can be repaired by thermal annealing. In addition, the introduced dopant atoms can be incorporated with high efficiency into lattice position in the silicon host crystal which makes them electrically active. This is not the case for e.g. diamond, which makes ion implantation doping to engineer the electrical properties of diamond, especially for n-type doping much harder then for silicon. Ion implantation is usually a highly statistical process, where high fluences of energetic ions, ranging from {approx}10{sup 9} to >10{sup 16} cm{sup -2} are implanted. For single atom device development, control over the absolute number of ions is needed and ions have to be placed with high spatial resolution. In the following sections we will discuss a series of approaches to single ion implantation with regard to single ion impact sensing and control of single ion positioning.

Schenkel, Thomas

2010-06-11T23:59:59.000Z

472

A single power supply optoelectronic differential amplifier  

E-Print Network [OSTI]

A SINGLE POWER SUPPLY OPTOELECTRONIC DIFFERENTIAL AMPLIFIER A Thesis by YOUNGiXIIN ALBERT CHOI Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December... 1987 Major Subject: Electrical Engineering A SINGLE POWER SUPPLY OPTOELECTRONIC DIFFERENTIAL AMPLIFIER A Thesis by YOUNGMIN ALBERT CHOI Approved a. s to style and content by: He y F. aylor (Chairman of Committee) Kai Chang (Member) Ohannes...

Choi, Youngmin Albert

1987-01-01T23:59:59.000Z

473

Single top quark production at the Tevatron  

SciTech Connect (OSTI)

The Tevatron experiments D0 and CDF have found evidence for single top quark production, based on datasets between 0.9 fb{sup -1} and 2.2 fb{sup -1}. Several different multivariate techniques are used to extract the single top quark signal out of the large backgrounds. The cross section measurements are also used to provide the first direct measurement of the CKM matrix element |V{sub tb}|.

Schwienhorst, Reinhard; /Michigan State U.

2008-05-01T23:59:59.000Z

474

International workshop on cold neutron sources  

SciTech Connect (OSTI)

The first meeting devoted to cold neutron sources was held at the Los Alamos National Laboratory on March 5--8, 1990. Cosponsored by Los Alamos and Oak Ridge National Laboratories, the meeting was organized as an International Workshop on Cold Neutron Sources and brought together experts in the field of cold-neutron-source design for reactors and spallation sources. Eighty-four people from seven countries attended. Because the meeting was the first of its kind in over forty years, much time was spent acquainting participants with past and planned activities at reactor and spallation facilities worldwide. As a result, the meeting had more of a conference flavor than one of a workshop. The general topics covered at the workshop included: Criteria for cold source design; neutronic predictions and performance; energy deposition and removal; engineering design, fabrication, and operation; material properties; radiation damage; instrumentation; safety; existing cold sources; and future cold sources.

Russell, G.J.; West, C.D. (comps.) (Los Alamos National Lab., NM (United States)) [comps.; Los Alamos National Lab., NM (United States)

1991-08-01T23:59:59.000Z

475

Sufficient bound on the mode mismatch of single photons for scalability of the boson sampling computer  

E-Print Network [OSTI]

The boson sampler proposed by Aaronson and Arkhipov is a non-universal quantum computer, which can serve as evidence against the extended Church-Turing thesis. It samples the probability distribution at the output of linear unitary optical network, with indistinguishable single photons at the input. Four experimental groups have already tested their small-scale prototypes with up to four photons. The boson sampler with few dozens of single photons is believed to be hard to simulate on a classical computer. For scalability of a realistic boson sampler with current technology it is necessary to know the effect of the photon mode mismatch on its operation. Here a nondeterministic model of the boson sampler is analyzed, which employs partially indistinguishable single photons emitted by identical sources. A sufficient condition on the average mutual fidelity $ \\langle \\mathcal{F}\\rangle$ of the single photons is found, which guarantees that the realistic boson sampler outperforms the classical computer. Moreover, the boson sampler computer with partially indistinguishable single photons is scalable while being beyond the power of classical computers when the single photon mode mismatch $1-\\langle \\mathcal{F}\\rangle$ scales as $ \\mathcal{O}(N^{-3/2})$ with the total number of photons $N$.

Valery Shchesnovich

2014-12-02T23:59:59.000Z

476

Standard Work Specifications for Single-Family Home Energy Upgrades Summary (Fact Sheet)  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE), the National Renewable Energy Laboratory (NREL) and numerous industry stakeholders developed the Standard Work Specifications for Single-Family Home Energy Upgrades to define the minimum requirements for high-quality residential energy upgrades. Today, the Standard Work Specifications provide a unique source for defining high-quality home energy upgrades, establishing clear expectations for homeowners, contractors, trainers, workers, program administrators, and organizations that provide financing for energy upgrades.

Not Available

2012-11-01T23:59:59.000Z

477

A 2.45 GHz ECR ion source for production of medium charge states ions  

SciTech Connect (OSTI)

At the Lawrence Berkeley National Laboratory we are constructing an ECR ion source test facility for nuclear science as well as industrial applications experiments. For these purposes, a single-stage 2.45 GHz electron cyclotron resonance ion source has been designed and constructed. It features an axial magnetic field with a mirror ratio of up to six and a hexapole field produced by a simple Nd{endash}Fe{endash}B permanent magnet assembly. In order to enhance the ion confinement time, the source plasma volume has been enlarged as much as possible while still maintaining a high mirror ratio. This paper describes the design of the ion source, the extraction system and the test stand. First, operational experience and experimental results with an argon discharge are presented. {copyright} {ital 1998 American Institute of Physics.}

Wutte, D.C.; Leitner, M.A.; Williams, M.D.; Leung, K.N.; Gough, R.A. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)] [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Saadatmand, K.; Benveniste, V. [Eaton Corporation, Beverly, Massachusetts 01915 (United States)] [Eaton Corporation, Beverly, Massachusetts 01915 (United States)

1998-02-01T23:59:59.000Z

478

The Strongest 100 Point Radio Sources in the LMC at 1.4 GHz  

E-Print Network [OSTI]

We present the 100 strongest 1.4 GHz point sources from a new mosaic image in the direction of the Large Magellanic Cloud (LMC). The observations making up the mosaic were made over a ten year period and were combined with Parkes single dish data at 1.4 GHz to complete the image for short spacing. An initial list of co-identifications within 10" at 0.843, 4.8 and 8.6 GHz consisted of 2682 sources. Elimination of extended objects and artifact noise allowed the creation of a refined list containing 1988 point sources. Most of these are presumed to be background objects seen through the LMC; a small portion may represent compact H II regions, young SNRs and radio planetary nebulae. We find an average spectral index of -0.53 and present a 1.4 GHz image showing source location in the direction of the LMC.

Payne, J L; Filipovic, M D; Crawford, E J; De Horta, A Y

2009-01-01T23:59:59.000Z

479

Source-to-Source Architecture Transformation for Performance Optimization in BIP  

E-Print Network [OSTI]

Source-to-Source Architecture Transformation for Performance Optimization in BIP Marius Bozga of composition operators: inter- actions and priorities. In this paper we present a method that transforms of the interconnection of components [14]. Source-to-source transformations have been considered as a powerful means

Paris-Sud XI, Universit de

480

Blind source separation in the presence of weak sources J.-P. Nadala  

E-Print Network [OSTI]

Blind source separation in the presence of weak sources J.-P. Nadala , E. Korutchevab,*, F. Airesa" as compared to the other ones, the "weak" sources. We find that it is preferable to perform blind source simulations. 2000 Elsevier Science Ltd. All rights reserved. Keywords: Independent component analysis; Blind

Aires, Filipe

Note: This page contains sample records for the topic "largest single source" 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

Blind Source Separation 2 Understanding Two Simultaneous Speeches by Blind Source Separation  

E-Print Network [OSTI]

Blind Source Separation 2 Understanding Two Simultaneous Speeches by Blind Source Separation) to segregate speech streams from a mixture of sounds, while the other ex- ploits Blind Source Separation the performance of Blind Source Separation by using the same three benchmarks of 500 mix- ture of two speeches

Ikeda, Shiro

482

Efficient generation of single and entangled photons on a silicon photonic integrated chip  

E-Print Network [OSTI]

We present a protocol for generating on-demand, indistinguishable single photons on a silicon photonic integrated chip. The source is a time-multiplexed spontaneous parametric down-conversion element that allows optimization of single-photon versus multiphoton emission while realizing high output rate and indistinguishability. We minimize both the scaling of active elements and the scaling of active element loss with multiplexing. We then discuss detection strategies and data processing to further optimize the procedure. We simulate an improvement in single-photon-generation efficiency over previous time-multiplexing protocols, assuming existing fabrication capabilities. We then apply this system to generate heralded Bell states. The generation efficiency of both nonclassical states could be increased substantially with improved fabrication procedures.

Jacob Mower; Dirk Englund

2011-10-18T23:59:59.000Z

483

RF-Plasma Source Commissioning in Indian Negative Ion Facility  

SciTech Connect (OSTI)

The Indian program of the RF based negative ion source has started off with the commissioning of ROBIN, the inductively coupled RF based negative ion source facility under establishment at Institute for Plasma research (IPR), India. The facility is being developed under a technology transfer agreement with IPP Garching. It consists of a single RF driver based beam source (BATMAN replica) coupled to a 100 kW, 1 MHz RF generator with a self excited oscillator, through a matching network, for plasma production and ion extraction and acceleration. The delivery of the RF generator and the RF plasma source without the accelerator, has enabled initiation of plasma production experiments. The recent experimental campaign has established the matching circuit parameters that result in plasma production with density in the range of 0.5-1x10{sup 18}/m{sup 3}, at operational gas pressures ranging between 0.4-1 Pa. Various configurations of the matching network have been experimented upon to obtain a stable operation of the set up for RF powers ranging between 25-85 kW and pulse lengths ranging between 4-20 s. It has been observed that the range of the parameters of the matching circuit, over which the frequency of the power supply is stable, is narrow and further experiments with increased number of turns in the coil are in the pipeline to see if the range can be widened. In this paper, the description of the experimental system and the commissioning data related to the optimisation of the various parameters of the matching network, to obtain stable plasma of required density, are presented and discussed.

Singh, M. J.; Bandyopadhyay, M.; Yadava, Ratnakar; Chakraborty, A. K. [ITER- India, Institute for Plasma Research, A-29, Sector 25, GIDC, Gandhinagar, Gujrat (India); Bansal, G.; Gahlaut, A.; Soni, J.; Kumar, Sunil; Pandya, K.; Parmar, K. G.; Sonara, J. [Institute for Plasma Research, Bhat Gandhinagar, Gujrat (India); Kraus, W.; Heinemann, B.; Riedl, R.; Obermayer, S.; Martens, C.; Franzen, P.; Fantz, U. [Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching (Germany)

2011-09-26T23:59:59.000Z

484

The effect of seed source on some agronomic and genetic characters of five Texas corn hybrids  

E-Print Network [OSTI]

and hybrids in bushels of shelled corn per acre 12 3. Analysis of variance of source yields 4. Analysis of variance of hybrid yields 12 12 5. Correlation and regression of emergence percentages with germination percentages 14 6. Average plant heights... in harvesting and seed processing. Neal (4) has found that the average actual loss of vigor of F2 plants as represented by yield is 29. 5V. for single-cross hybrids. He also states that "the stalks and leaves of the advanced generations (of single...

Douglas, Alvin Gene

2012-06-07T23:59:59.000Z

485

Interaction of plasmas in laser ion source with double laser system  

SciTech Connect (OSTI)

Multiple laser shots could be used to elongate an ion beam pulse width or to intensify beam current from laser ion sources. In order to confirm the feasibility of the multiple shot scheme, we investigated the properties of plasmas produced by double laser shots. We found that when the interval of the laser shots is shorter than 10 ?s, the ion current profile had a prominent peak, which is not observed in single laser experiments. The height of this peak was up to five times larger than that of single laser experiment.

Fuwa, Y., E-mail: yasuhiro.fuwa@riken.jp [Graduate School of Science, Kyoto University, Kyoto (Japan); Riken, Wako, Saitama (Japan); Ikeda, S. [Riken, Wako, Saitama (Japan) [Riken, Wako, Saitama (Japan); Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama, Tokyo (Japan); Kumaki, M. [Riken, Wako, Saitama (Japan) [Riken, Wako, Saitama (Japan); Research Institute for Science and Engineering, Waseda University, Shinjuku, Tokyo (Japan); Sekine, M. [Riken, Wako, Saitama (Japan) [Riken, Wako, Saitama (Japan); Department of Nuclear Engineering, Tokyo Institute of Technology, Meguro, Tokyo (Japan); Cinquegrani, D. [Nuclear Engineering and Radiological Science, University of Michigan, Ann Arbor, Michigan 48109 (United States)] [Nuclear Engineering and Radiological Science, University of Michigan, Ann Arbor, Michigan 48109 (United States); Romanelli, M. [School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14850 (United States)] [School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14850 (United States); Kanesue, T.; Okamura, M. [Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)] [Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973 (United States); Iwashita, Y. [Institute for Chemical Research, Kyoto University, Uji, Kyoto (Japan)] [Institute for Chemical Research, Kyoto University, Uji, Kyoto (Japan)

2014-02-15T23:59:59.000Z

486

Single and double superimposing interferometer systems  

DOE Patents [OSTI]

Interferometers which can imprint a coherent delay on a broadband uncollimated beam are described. The delay value can be independent of incident ray angle, allowing interferometry using uncollimated beams from common extended sources such as lamps and fiber bundles, and facilitating Fourier Transform spectroscopy of wide angle sources. Pairs of such interferometers matched in delay and dispersion can measure velocity and communicate using ordinary lamps, wide diameter optical fibers and arbitrary non-imaging paths, and not requiring a laser.

Erskine, David J. (Oakland, CA)

2000-01-01T23:59:59.000Z

487

Passive sources for the Bennett-Brassard 1984 quantum key distribution protocol with practical signals  

E-Print Network [OSTI]

Most experimental realizations of quantum key distribution are based on the Bennett-Brassard 1984 (so-called BB84) protocol. In a typical optical implementation of this scheme, the sender uses an active source to produce the required BB84 signal states. While active state preparation of BB84 signals is a simple and elegant solution in principle, in practice passive state preparation might be desirable in some scenarios, for instance, in those experimental setups operating at high transmission rates. Passive schemes might also be more robust against side-channel attacks than active sources. Typical passive devices involve parametric down-conversion. In this paper, we show that both coherent light and practical single photon sources are also suitable for passive generation of BB84 signal states. Our method does not require any external-driven element, but only linear optical components and photodetectors. In the case of coherent light, the resulting key rate is similar to the one delivered by an active source. When the sender uses practical single photon sources, however, the distance covered by a passive transmitter might be longer than the one of an active configuration.

Marcos Curty; Xiongfeng Ma; Hoi-Kwong Lo; Norbert Ltkenhaus

2010-09-20T23:59:59.000Z

488

Spent Sealed Sources Management in Switzerland - 12011  

SciTech Connect (OSTI)

Information is provided about the international recommendations for the safe management of disused and spent sealed radioactive sources wherein the return to the supplier or manufacturer is encouraged for large radioactive sources. The legal situation in Switzerland is described mentioning the demand of minimization of radioactive waste as well as the situation with respect to the interim storage facility at the Paul Scherrer Institute (PSI). Based on this information and on the market situation with a shortage of some medical radionuclides the management of spent sealed sources is provided. The sources are sorted according to their activity in relation to the nuclide-specific A2-value and either recycled as in the case of high active sources or conditioned as in the case for sources with lower activity. The results are presented as comparison between recycled and conditioned activity for three selected nuclides, i.e. Cs-137, Co-60 and Am-241. (author)

Beer, H.F. [Paul Scherrer Institute, CH-5232 Villigen (Switzerland)

2012-07-01T23:59:59.000Z

489

Single Molecule Spectroscopy of Electron Transfer  

SciTech Connect (OSTI)

The objectives of this research are threefold: (1) to develop methods for the study electron transfer processes at the single molecule level, (2) to develop a series of modifiable and structurally well defined molecular and nanoparticle systems suitable for detailed single molecule/particle and bulk spectroscopic investigation, (3) to relate experiment to theory in order to elucidate the dependence of electron transfer processes on molecular and electronic structure, coupling and reorganization energies. We have begun the systematic development of single molecule spectroscopy (SMS) of electron transfer and summaries of recent studies are shown. There is a tremendous need for experiments designed to probe the discrete electronic and molecular dynamic fluctuations of single molecules near electrodes and at nanoparticle surfaces. Single molecule spectroscopy (SMS) has emerged as a powerful method to measure properties of individual molecules which would normally be obscured in ensemble-averaged measurement. Fluctuations in the fluorescence time trajectories contain detailed molecular level statistical and dynamical information of the system. The full distribution of a molecular property is revealed in the stochastic fluctuations, giving information about the range of possible behaviors that lead to the ensemble average. In the case of electron transfer, this level of understanding is particularly important to the field of molecular and nanoscale electronics: from a device-design standpoint, understanding and controlling this picture of the overall range of possible behaviors will likely prove to be as important as designing ia the ideal behavior of any given molecule.

Michael Holman; Ling Zang; Ruchuan Liu; David M. Adams

2009-10-20T23:59:59.000Z

490

Single-Shot Quantum Process Tomography  

E-Print Network [OSTI]

The standard procedure for quantum process tomography (QPT) involves applying the quantum process on a system initialized in each of a complete set of orthonormal states. The corresponding outputs are then characterized by quantum state tomography (QST), which itself requires the measurement of non-commuting observables realized by independent experiments on identically prepared system states. Thus QPT procedure demands a number of independent measurements, and moreover, this number increases rapidly with the size of the system. However, the total number of independent measurements can be greatly reduced with the availability of ancilla qubits. Ancilla assisted process tomography (AAPT) has earlier been shown to require a single QST of system-ancilla space. Ancilla assisted quantum state tomography (AAQST) has also been shown to perform QST in a single measurement. Here we combine AAPT with AAQST to realize a `single-shot QPT' (SSPT), a procedure to characterize a general quantum process in a single collective measurement of a set of commuting observables. We demonstrate experimental SSPT by characterizing several single-qubit processes using a three-qubit NMR quantum register. Furthermore, using the SSPT procedure we experimentally characterize the twirling process and compare the results with theory.

Abhishek Shukla; T. S. Mahesh

2014-05-27T23:59:59.000Z

491

A Haemonchus Contortus Management Plan for Sheep and Goats in Texas  

E-Print Network [OSTI]

Internal parasites are the single largest threat to the profitability of sheep and goat production in Texas. Haemonchus contortus is the parasite of greatest concern. This publication explains common symptoms, sources of the parasite's resistance...

Machen, Richard V.; Craddock, Frank; Craig, Tom; Fuchs, Thomas W.

1998-05-22T23:59:59.000Z

492

California's Energy Policy: Conservation Works  

E-Print Network [OSTI]

Conservation is the foundation of California's energy policy and the largest single source of the state's 'new energy supply'. Our goal is to use economic market forces and government programs to direct energy Investments away from our current...

Greene, D.

1982-01-01T23:59:59.000Z

493

Experimental and numerical analysis of isothermal turbulent flows in interacting low NOx burners in coal-fired furnaces  

E-Print Network [OSTI]

Coal firing power stations represent the second largest source of global NOx emissions. The current practice of predicting likely exit NOx levels from multi-burner furnaces on the basis of single burner test rig data has been proven inadequate...

Cvoro, Valentina

494

The long-term problems of contaminated land: Sources, impacts and countermeasures  

SciTech Connect (OSTI)

This report examines the various sources of radiological land contamination; its extent; its impacts on man, agriculture, and the environment; countermeasures for mitigating exposures; radiological standards; alternatives for achieving land decontamination and cleanup; and possible alternatives for utilizing the land. The major potential sources of extensive long-term land contamination with radionuclides, in order of decreasing extent, are nuclear war, detonation of a single nuclear weapon (e.g., a terrorist act), serious reactor accidents, and nonfission nuclear weapons accidents that disperse the nuclear fuels (termed ''broken arrows'').

Baes, C.F. III

1986-11-01T23:59:59.000Z

495

HTGR Mechanistic Source Terms White Paper  

SciTech Connect (OSTI)

The primary purposes of this white paper are: (1) to describe the proposed approach for developing event specific mechanistic source terms for HTGR design and licensing, (2) to describe the technology development programs required to validate the design methods used to predict these mechanistic source terms and (3) to obtain agreement from the NRC that, subject to appropriate validation through the technology development program, the approach for developing event specific mechanistic source terms is acceptable

Wayne Moe

2010-07-01T23:59:59.000Z

496

Carbothermic reduction with parallel heat sources  

DOE Patents [OSTI]

Disclosed are apparatus and method of carbothermic direct reduction for producing an aluminum alloy from a raw material mix including aluminum oxide, silicon oxide, and carbon wherein parallel heat sources are provided by a combustion heat source and by an electrical heat source at essentially the same position in the reactor, e.g., such as at the same horizontal level in the path of a gravity-fed moving bed in a vertical reactor. The present invention includes providing at least 79% of the heat energy required in the process by the electrical heat source.

Troup, Robert L. (Murrysville, PA); Stevenson, David T. (Washington Township, Washington County, PA)

1984-12-04T23:59:59.000Z

497

DOE & Strategic Sourcing "New Challenges, New Opportunities"  

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

& Strategic Sourcing "New Challenges, New Opportunities" What is it? NNSA Model DOE Future Activities Bill Marks, Commodity Manager, NNSA Supply Chain Management Center Gary...

498

Sources: Energy Information Administration, Form EIA-182,  

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

Sources: Energy Information Administration, Form EIA-182, "Domestic Crude Oil First Purchase Report"; Form EIA-856, "Monthly Foreign Crude Oil Acquisition Report"; and Form EIA-14,...

499

Building the World's Most Advanced Light Source  

SciTech Connect (OSTI)

View this time-lapse video showing construction of the National Synchrotron Light Source II at Brookhaven National Laboratory. Construction is shown from 2009-2012.

None

2012-08-03T23:59:59.000Z

500

Radiation Sources and Radioactive Materials (Connecticut)  

Broader source: Energy.gov [DOE]

These regulations apply to persons who receive, transfer, possess, manufacture, use, store, handle, transport or dispose of radioactive materials and/or sources of ionizing radiation. Some...