Powered by Deep Web Technologies
Note: This page contains sample records for the topic "range gate spacing" 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.


1

Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities  

DOE Patents [OSTI]

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with atypical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. 20 figs.

McEwan, T.E.

1998-06-30T23:59:59.000Z

2

Compressed Gated Range Sensing Grigorios Tsagkatakisa, Arnaud Woiselleb, George Tzagkarakisc,  

E-Print Network [OSTI]

emitting diode (LED), and an imaging sensor in order to generate a 2D depth map of a scene. Time. INTRODUCTION Active Range Imaging systems employ an active illumination source, typically a laser or a light

Tsakalides, Panagiotis

3

Range-gated field disturbance sensor with range-sensitivity compensation  

DOE Patents [OSTI]

A field disturbance sensor operates with relatively low power, provides an adjustable operating range, is not hypersensitive at close range, allows co-location of multiple sensors, and is inexpensive to manufacture. The sensor includes a transmitter that transmits a sequence of transmitted bursts of electromagnetic energy. The transmitter frequency is modulated at an intermediate frequency. The sequence of bursts has a burst repetition rate, and each burst has a burst width and comprises a number of cycles at a transmitter frequency. The sensor includes a receiver which receives electromagnetic energy at the transmitter frequency, and includes a mixer which mixes a transmitted burst with reflections of the same transmitted burst to produce an intermediate frequency signal. Circuitry, responsive to the intermediate frequency signal indicates disturbances in the sensor field. Because the mixer mixes the transmitted burst with reflections of the transmitted burst, the burst width defines the sensor range. The burst repetition rate is randomly or pseudorandomly modulated so that bursts in the sequence of bursts have a phase which varies. 8 figs.

McEwan, T.E.

1996-05-28T23:59:59.000Z

4

Image enhancement using a range gated MCPII video system with a 180-ps FWHM shutter  

SciTech Connect (OSTI)

The video image of a target submerged in a scattering medium was improved through the use of range gating techniques. The target, an Air Force resolution chart, was submerged in 18 in. of a colloidal suspension of tincture green soap in water. The target was illuminated with pulsed light from a Raman shifted, frequency-doubled, ND:YAG laser having a wavelength of 559 mm and a width of 20 ps FWHM. The laser light reflected by the target along with the light scattered by the soap, was imaged onto a microchannel-plate image intensifier (MCPII). The output from the MCPII was then recorded with a RS-170 video camera and a video digitizer. The MCPII was gated on with a pulse synchronously timed to the laser pulse. The relative timing between the reflected laser pulse and the shuttering of the MCPII determined the distance to the imaged region. The resolution of the image was influenced by the MCPII`s shutter time. A comparison was made between the resolution of images obtained with 6 ns, 500 ps and 180 ps FWHM (8 ns, 750 ps and 250 ps off-to-off) shutter times. it was found that the image resolution was enhanced by using the faster shutter since the longer exposures allowed light scattered by the water to be recorded too. The presence of scattered light in the image increased the noise, thereby reducing the contrast and the resolution.

Thomas, M.C. [Special Technologies Laboratory, Santa Barbara, CA (United States); Yates, G.J. [Los Alamos National Lab., NM (United States); Zadgarino, P. [Sharpenit, Ellwood, CA (United States)

1995-09-01T23:59:59.000Z

5

Mercury Surface, Space Environment, Geochemistry, and Ranging Mission  

E-Print Network [OSTI]

MESSENGER Mercury Surface, Space Environment, Geochemistry, and Ranging Mission Frequently Asked Mercury's characteristics and environment during two complementary mission phases. The mission's primary goal is to increase our understanding of Mercury's density, geologic history, magnetic field, core

Mojzsis, Stephen J.

6

A large Bradbury Nielsen ion gate with flexible wire spacing based on photo-etched stainless steel grids  

E-Print Network [OSTI]

Bradbury Nielsen gates are well known devices used to switch ion beams and are typically applied in mass or mobility spectrometers for separating beam constituents by their different flight or drift times. A Bradbury Nielsen gate consists of two interleaved sets of electrodes. If opposite polarity of the same amplitude is applied the gate is closed, and for identical (zero) potential the gate is open. Whereas former realizations of the device employ actual wires resulting in difficulties with winding, fixing and tensioning them, our approach is to use two grids photo-etched onto a metallic foil. This design allows for simplified construction of gates covering large beam sizes up to at least 900\\,mm$^2$ with variable wire spacing down to 250\\,\\textmu m. By changing the grids the wire spacing can be varied without major changes. A gate of this design was installed and systematically tested at TRIUMF's ion trap facility, TITAN, for use with radioactive beams to separate isobaric contamination of charge states.

Brunner, T; O'Sullivan, K; Simon, M C; Kossick, M; Ettenauer, S; Gallant, A T; Mané, E; Bishop, D; Good, M; Gratta, G; Dilling, J

2011-01-01T23:59:59.000Z

7

Laser-Ranging Long Baseline Differential Atom Interferometers for Space  

E-Print Network [OSTI]

High sensitivity differential atom interferometers are promising for precision measurements in science frontiers in space, including gravity field mapping for Earth science studies and gravitational wave detection. We propose a new configuration of twin atom interferometers connected by a laser ranging interferometer (LRI-AI) to provide precise information of the displacements between the two AI reference mirrors and a means to phase-lock the two independent interferometer lasers over long distances, thereby further enhancing the feasibility of long baseline differential atom interferometers. We show that a properly implemented LRI-AI can achieve equivalent functionality to the conventional differential atom interferometer measurement system. LRI-AI isolates the laser requirements for atom interferometers and for optical phase readout between distant locations, thus enabling optimized allocation of available laser power within a limited physical size and resource budget. A unique aspect of LRI-AI also enables...

Chiow, Sheng-wey; Yu, Nan

2015-01-01T23:59:59.000Z

8

Scalable continuous range monitoring of moving objects in symbolic indoor space  

Science Journals Connector (OSTI)

Indoor spaces accommodate large populations of individuals. The continuous range monitoring of such objects can be used as a foundation for a wide variety of applications, e.g., space planning, way finding, and security. Indoor space differs from outdoor ... Keywords: continuous range, indoor moving objects, symbolic indoor space

Bin Yang; Hua Lu; Christian S. Jensen

2009-11-01T23:59:59.000Z

9

Determination of Ranged Sets of Design Specifications by Incorporating Design Space Heterogeneity  

E-Print Network [OSTI]

Huibin Liu BD Medical Systems Sandy, UT 84070 Wei Chen1 Integrated Design Automation Laboratory (IDEAL design attributes. These high-level specifications serve as a starting point and are cascaded to guide1 Determination of Ranged Sets of Design Specifications by Incorporating Design Space Heterogeneity

Chen, Wei

10

Optical NAND gate  

SciTech Connect (OSTI)

An optical NAND gate is formed from two pair of optical waveguide devices on a substrate, with each pair of the optical waveguide devices consisting of an electroabsorption modulator and a photodetector. One pair of the optical waveguide devices is electrically connected in parallel to operate as an optical AND gate; and the other pair of the optical waveguide devices is connected in series to operate as an optical NOT gate (i.e. an optical inverter). The optical NAND gate utilizes two digital optical inputs and a continuous light input to provide a NAND function output. The optical NAND gate can be formed from III-V compound semiconductor layers which are epitaxially deposited on a III-V compound semiconductor substrate, and operates at a wavelength in the range of 0.8-2.0 .mu.m.

Skogen, Erik J. (Albuquerque, NM); Raring, James (Goleta, CA); Tauke-Pedretti, Anna (Albuquerque, NM)

2011-08-09T23:59:59.000Z

11

Optical NOR gate  

DOE Patents [OSTI]

An optical NOR gate is formed from two pair of optical waveguide devices on a substrate, with each pair of the optical waveguide devices consisting of an electroabsorption modulator electrically connected in series with a waveguide photodetector. The optical NOR gate utilizes two digital optical inputs and a continuous light input to provide a NOR function digital optical output. The optical NOR gate can be formed from III-V compound semiconductor layers which are epitaxially deposited on a III-V compound semiconductor substrate, and operates at a wavelength in the range of 0.8-2.0 .mu.m.

Skogen, Erik J. (Albuquerque, NM); Tauke-Pedretti, Anna (Albuquerque, NM)

2011-09-06T23:59:59.000Z

12

Decomposition of Diagonal Hermitian Quantum Gates Using Multiple-Controlled Pauli Z Gates  

E-Print Network [OSTI]

Quantum logic decomposition refers to decomposing a given quantum gate to a set of physically implementable gates. An approach has been presented to decompose arbitrary diagonal quantum gates to a set of multiplexed-rotation gates around z axis. In this paper, a special class of diagonal quantum gates, namely diagonal Hermitian quantum gates, is considered and a new perspective to the decomposition problem with respect to decomposing these gates is presented. It is first shown that these gates can be decomposed to a set that solely consists of multiple-controlled Z gates. Then a binary representation for the diagonal Hermitian gates is introduced. It is shown that the binary representations of multiple-controlled Z gates form a basis for the vector space that is produced by the binary representations of all diagonal Hermitian quantum gates. Moreover, the problem of decomposing a given diagonal Hermitian gate is mapped to the problem of writing its binary representation in the specific basis mentioned above. Moreover, CZ gate is suggested to be the two-qubit gate in the decomposition library, instead of previously used CNOT gate. Experimental results show that the proposed approach can lead to circuits with lower costs in comparison with the previous ones.

Mahboobeh Houshmand; Morteza Saheb Zamani; Mehdi Sedighi; Mona Arabzadeh

2014-05-26T23:59:59.000Z

13

Technology-based design and scaling for \\{RTGs\\} for space exploration in the 100 W range  

Science Journals Connector (OSTI)

This paper presents the results of a study on design considerations for a 100 W radioisotope thermo-electric generator (RTG). Special emphasis has been put on designing a modular, multi-purpose system with high overall TRL levels and making full use of the extensive Russian heritage in the design of radioisotope power systems. The modular approach allowed insight into the scaling of such \\{RTGs\\} covering the electric power range from 50 to 200 We (EoL). The retained concept is based on a modular thermal block structure, a radiative inner-RTG heat transfer and using a two-stage thermo-electric conversion system.

Leopold Summerer; Jean Pierre Roux; Alexey Pustovalov; Viacheslav Gusev; Nikolai Rybkin

2011-01-01T23:59:59.000Z

14

East Gate  

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

East East Gate to: Rt. 59 Fermilab Village Main Entrance B u tt e r fi e ld R d . to: Farnsworth Ave, I-88 Kirk Rd. Site 56 Site 55 Buffalo Farm Lederman Science Center (Public Welcome) Prairie Trails Dog Training Area Nature Area Lake Law A.E. Sea Technical Division Illinois Accelerator Research Center Feynman Computing Center Muon Delivery Ring Main Injector Tevatron Test Accelerators Site 37 Site 39 Site 38 Neutrino Experiments Silicon Detector Facility Test Beam Facility DAB Site 50 Wilson Hall & Ramsey Auditorium (Public Welcome) Wilson St. Gate (Deliveries, Employees) NML CMTF A 1 R D D R D B RD S E O LA R D B A T A V I A R D E WILSON ST WILSON ST P IN E S T P O W E R L I N E R D N E O LA R D MCCHESNEY RD A B C D E 5 4 3 2 1 ´ 0 0.5 1 0.25 Miles Trails Public Areas Buildings Roads/Parking Ponds Fermi National Accelerator Laboratory 2013 Fermilab Site Map

15

Space  

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

Energy Earth Materials Science Technology The Lab All Paul Johnson Unusual light in dark space revealed by Los Alamos, NASA By looking at the dark spaces between visible...

16

Cellular Gate Technology  

E-Print Network [OSTI]

We propose a biochemically plausible mechanism for constructing digital logic signals and gates of significant complexity within living cells. These mechanisms rely largely on co-opting existing biochemical machinery and ...

Knight, Thomas F.

1998-01-05T23:59:59.000Z

17

Advanced insulated gate bipolar transistor gate drive  

DOE Patents [OSTI]

A gate drive for an insulated gate bipolar transistor (IGBT) includes a control and protection module coupled to a collector terminal of the IGBT, an optical communications module coupled to the control and protection module, a power supply module coupled to the control and protection module and an output power stage module with inputs coupled to the power supply module and the control and protection module, and outputs coupled to a gate terminal and an emitter terminal of the IGBT. The optical communications module is configured to send control signals to the control and protection module. The power supply module is configured to distribute inputted power to the control and protection module. The control and protection module outputs on/off, soft turn-off and/or soft turn-on signals to the output power stage module, which, in turn, supplies a current based on the signal(s) from the control and protection module for charging or discharging an input capacitance of the IGBT.

Short, James Evans (Monongahela, PA); West, Shawn Michael (West Mifflin, PA); Fabean, Robert J. (Donora, PA)

2009-08-04T23:59:59.000Z

18

Extended range chemical sensing apparatus  

DOE Patents [OSTI]

An apparatus is described for sensing chemicals over extended range of concentrations. In particular, first and second sensors each having separate, but overlapping ranges for sensing concentrations of hydrogen are provided. Preferably, the first sensor is a MOS solid state device wherein the metal electrode or gate is a nickel alloy. The second sensor is a chemiresistor comprising a nickel alloy. 6 figures.

Hughes, R.C.; Schubert, W.K.

1994-01-18T23:59:59.000Z

19

Simple trapped-ion architecture for high-fidelity Toffoli gates  

SciTech Connect (OSTI)

We discuss a simple architecture for a quantum toffoli gate implemented using three trapped ions. The gate, which, in principle, can be implemented with a single laser-induced operation, is effective under rather general conditions and is strikingly robust (within any experimentally realistic range of values) against dephasing, heating, and random fluctuations of the Hamiltonian parameters. We provide a full characterization of the unitary and noise-affected gate using three-qubit quantum process tomography.

Borrelli, Massimo [CM-DTC, SUPA, EPS/School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Mazzola, Laura [Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto (Finland); School of Mathematics and Physics, Queen's University, BT7 1NN Belfast (United Kingdom); Paternostro, Mauro [School of Mathematics and Physics, Queen's University, BT7 1NN Belfast (United Kingdom); Maniscalco, Sabrina [CM-DTC, SUPA, EPS/School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto (Finland)

2011-07-15T23:59:59.000Z

20

BILL GATES, AIDS GIVING, AND TAX REBATES  

Science Journals Connector (OSTI)

BILL GATES, AIDS GIVING, AND TAX REBATES ... Gates Foundation's support for global health inspires ideas on how to spend the tax rebate ...

PAMELA S. ZURER

2001-07-30T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Developing Language Processing Components with GATE  

E-Print Network [OSTI]

Developing Language Processing Components with GATE (a User Guide) For GATE version 3 beta 1 (July.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4 [D] Get Started

Maynard, Diana

22

Simple template-based method to produce bradbury-nielsen gates  

Science Journals Connector (OSTI)

A Bradbury-Nielsen gate (BNG) consists of two interleaved...µm with minimal use of a microscope. The small wire spacing allows modulation rates at tens of megahertz. Using this method, we have fabricated four BNG...

Oh Kyu Yoon; Ignacio A. Zuleta…

2007-11-01T23:59:59.000Z

23

Ultrafast gating of proximity-focused microchannel-plate intensifiers  

SciTech Connect (OSTI)

Proximity-focused, microchannel-plate (MCP) image intensifiers have been used at Los Alamos for many years to allow single frame film and video exposure times in the range of 2.5 to 10 ns. There is now a program to reduce gating times to < 1 ns. This paper reviews previous work and the problems in achieving good resolution with gating times of < 1 ns. The key problems involve applying fast electrical gating signals to the tube elements. We present computer modeling studies of the combined tube, tube connection, and pulser system and show that low photocathode surface resistivity must be obtained to permit fast gating between the photocathode and the MCP input. We discuss ways of making low-resistivity S20 photocathodes, using gallium arsenide photocathodes, and various means of gating the tubes. A variety of pulser designs are being experimentally evaluated including spark gaps, avalanche transistors, Krytron tubes with sharpening gaps, step recovery diodes, and photoconductive elements (PCEs). The results of these studies are presented. Because of the high capacitances involved in most gating schemes, the tube connection geometry must be of low-impedance design, and our solution is presented. Finally, ways of testing these high-speed camera systems are discussed.

Lundy, A.S.; Iverson, A.E.

1982-01-01T23:59:59.000Z

24

from Microsoft's Bill Gates. Summer  

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

with backing from Microsoft's Bill Gates. Summer fun (pages 4-5) All aboard a bus or train and tour Y-12 and the Secret City. August 2012 Visit us Many phrases can be used to...

25

Controlling attosecond electron dynamics by phase-stabilized polarization gating  

E-Print Network [OSTI]

LETTERS Controlling attosecond electron dynamics by phase-stabilized polarization gating I. J. SOLA the signature of a single return of the electron wavepacket over a large range of energies. This temporally (low energy) and cut-off (high energy) harmonics, specific focusing conditions ensure that only

Loss, Daniel

26

Thermosensitive gating effect and selective gas adsorption in a porous coordination nanocage  

SciTech Connect (OSTI)

A porous coordination nanocage functionalized with 24 triisopropylsilyl groups exhibits a remarkable thermosensitive gate opening phenomenon and demonstrates a molecular sieving effect at a certain temperature range, which can be used for gas separation purposes.

Zhao, Dan; Yuan, Daqiang; Krishna, Rajamani; van Baten, Jasper M.; Zhou, Hong-Cai (TAM); (U. Amsterdam)

2010-10-22T23:59:59.000Z

27

Thermosensitive gating effect and selective gas adsorption in a porous coordination nanocage  

SciTech Connect (OSTI)

A porous coordination nanocage functionalized with 24 triisopropylsilyl groups exhibits a remarkable thermosensitive gate opening phenomenon and demonstrates a molecular sieving effect at a certain temperature range, which can be used for gas separation purposes.

Zhao, Dan; Yuan, Daqiang; Krishna, Rajamani; van Baten, Jasper M; Zhou, Hong-Cai

2010-01-01T23:59:59.000Z

28

Sensory gating in intracranial recordings — The role of phase locking  

Science Journals Connector (OSTI)

For patients with schizophrenia, a deficient gating (or filtering) of sensory input has been described. One major approach to study this sensory gating is to measure event-related potentials (ERPs) in response to paired clicks. In these experiments, sensory gating is quantified as amplitude reduction of the ERP components P50 and N100 from the 1st to the 2nd stimulus. In ERP studies brain electrical signals are averaged over single trials. Alterations in phase locking might be one factor contributing to the observed deficits in sensory gating, but findings have been inconclusive as yet. In particular, the contribution of different frequency bands to the deficit required further investigation. We studied N100 gating by intracranial recordings in a sample of epilepsy patients and subdivided the group into good and poor gators of the intracranial ERP component N100. Data were evaluated by frequency specific wavelet-based phase and power analyses. Poor N100 gators had an increased phase locking in the frequency range from 6.0–15.1 Hz after the 2nd stimulus, as compared to good gators. Other group differences were apparent already before the 2nd stimulus. Poor gators had less phase locked beta band activity (20.2–30.0 Hz) than good gators 200–315 ms after the onset of the 1st stimulus. Within the group of poor gators, lower values of phase locking in this frequency range were also associated with lower gating ratios. The reduced beta band response in response to the 1st stimulus may reflect poorer memory encoding of the 1st stimulus in poor gators. This in turn might lead to increased demands to process the 2nd stimulus.

Timm Rosburg; Peter Trautner; Jürgen Fell; Karen Anne Moxon; Christian E. Elger; Nash N. Boutros

2009-01-01T23:59:59.000Z

29

Screening in gated bilayer graphene  

Science Journals Connector (OSTI)

The tight-binding model of a graphene bilayer is used to find the gap between the conduction and valence bands, as a function of both the gate voltage and as the doping by donors or acceptors. The total Hartree energy is minimized and the equation for the gap is obtained. This equation for the ratio of the gap to the chemical potential is determined only by the screening constant. Thus the gap is strictly proportional to the gate voltage or the carrier concentration in the absence of donors or acceptors. In the opposite case, where the donors or acceptors are present, the gap demonstrates the asymmetrical behavior on the electron and hole sides of the gate bias.

L. A. Falkovsky

2009-09-30T23:59:59.000Z

30

Improvement of the cantilever grooveless gate  

Science Journals Connector (OSTI)

1. The grooveless multisectional gate permits closing openings of any width without dividing the conduit into se...

S. M. Slisskii; P. R. Khlopenkov; E. G. Chernenko

1976-01-01T23:59:59.000Z

31

The gated community: residents' crime experience and perception of safety behind gates and fences in the urban area  

E-Print Network [OSTI]

regarding the connections between gated community territory, safety, and crime experience, this study classifies apartment communities according to the conditions of their gating and fencing: gated communities, perceived gated communities, and non...

Kim, Suk Kyung

2006-10-30T23:59:59.000Z

32

Graduate Automotive Technology Education (GATE) Initiative Awards |  

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

Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards September 8, 2011 - 11:46am Addthis Graduate Automotive Technology Education (GATE) Initiative Awards DOE's Graduate Automotive Technology Education (GATE) initiative will award $6.4 million over the course of five years to support seven Centers of Excellence at American colleges, universities, and university-affiliated research institutions. The awardees will focus on three critical automotive technology areas: hybrid propulsion, energy storage, and lightweight materials. By funding curriculum development and expansion as well as laboratory work, GATE allows higher education institutions to develop multidisciplinary training. As a result, GATE promotes the development of a

33

Graduate Automotive Technology Education (GATE) Initiative Awards |  

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

Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards September 8, 2011 - 11:46am Addthis Graduate Automotive Technology Education (GATE) Initiative Awards DOE's Graduate Automotive Technology Education (GATE) initiative will award $6.4 million over the course of five years to support seven Centers of Excellence at American colleges, universities, and university-affiliated research institutions. The awardees will focus on three critical automotive technology areas: hybrid propulsion, energy storage, and lightweight materials. By funding curriculum development and expansion as well as laboratory work, GATE allows higher education institutions to develop multidisciplinary training. As a result, GATE promotes the development of a

34

OBSERVATIONS OF THE 2006 DECEMBER 13 AND 14 SOLAR PARTICLE EVENTS IN THE 80 MeV n{sup -1}-3 GeV n{sup -1} RANGE FROM SPACE WITH THE PAMELA DETECTOR  

SciTech Connect (OSTI)

We present the space spectrometer PAMELA observations of proton and helium fluxes during the 2006 December 13 and 14 solar particle events. This is the first direct measurement of the solar energetic particles in space with a single instrument in the energy range from {approx}80 MeV n{sup -1} up to {approx}3 GeV n{sup -1}. For the December 13 event, measured energy spectra of solar protons and helium are compared with results obtained by neutron monitors and other detectors. Our measurements show a spectral behavior different from those derived from the neutron monitor network. No satisfactory analytical fitting was found for the energy spectra. During the first hours of the December 13 event, solar energetic particles spectra were close to the exponential form, demonstrating rather significant temporal evolution. Solar He with energy up to 1 GeV n{sup -1} was recorded on December 13. For the December 14 event, energy of solar protons reached 600 MeV, whereas the maximum energy of He was below 100 MeV n{sup -1}. The spectra were slightly bent in the lower energy range and preserved their form during the second event. Differences in the particle flux appearance and temporal evolution of these two events may argue for special conditions leading to the acceleration of solar particles up to relativistic energies.

Adriani, O.; Bonechi, L. [Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence (Italy); Barbarino, G. C. [Department of Physics, University of Naples 'Federico II', I-80126 Naples (Italy); Bazilevskaya, G. A. [Lebedev Physical Institute, RU-119991 Moscow (Russian Federation); Bellotti, R.; Bruno, A. [Department of Physics, University of Bari, I-70126 Bari (Italy); Boezio, M.; Bonvicini, V. [INFN, Sezione di Trieste, I-34149 Trieste (Italy); Bogomolov, E. A. [Ioffe Physical Technical Institute, RU-194021 St. Petersburg (Russian Federation); Bongi, M.; Bottai, S. [INFN, Sezione di Florence, I-50019 Sesto Fiorentino, Florence (Italy); Borisov, S.; Casolino, M.; De Pascale, M. P. [INFN, Sezione di Rome Tor Vergata, I-00133 Rome (Italy); Cafagna, F. [INFN, Sezione di Bari, I-70126 Bari (Italy); Campana, D.; Carbone, R.; Consiglio, L. [INFN, Sezione di Naples, I-80126 Naples (Italy); Carlson, P. [KTH, Department of Physics, and the Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, SE-10691 Stockholm (Sweden); Castellini, G. [IFAC, I-50019 Sesto Fiorentino, Florence (Italy); and others

2011-12-01T23:59:59.000Z

35

Golden Gate Park Marina Blvd.  

E-Print Network [OSTI]

St. Eureka S.VanNessAve. M arket St. Broadway St. To Golden Gate Bridge H ow ard St. Folsom St. Bryant St. 10 Bridge to/from Oakland C hannel St. 2nd St. Pine St. California St. California St. Clement St. Lake St From the East Bay and Oakland Airport 1. Cross Bay Bridge (I­80 West) 2. Exit on left 2A / 5th St. 3

Derisi, Joseph

36

Fast Quantum Gates for Neutral Atoms  

Science Journals Connector (OSTI)

We propose several schemes for implementing a fast two-qubit quantum gate for neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the atoms in the trapping potential. In our example, the large interaction energy required to perform fast gate operations is provided by the dipole-dipole interaction of atoms excited to low-lying Rydberg states in constant electric fields. A detailed analysis of imperfections of the gate operation is given.

D. Jaksch; J. I. Cirac; P. Zoller; S. L. Rolston; R. Côté; M. D. Lukin

2000-09-04T23:59:59.000Z

37

Looking at Transistor Gate Oxide Formation in Real Time  

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

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

38

Looking at Transistor Gate Oxide Formation in Real Time  

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

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

39

Looking at Transistor Gate Oxide Formation in Real Time  

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

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

40

Automatically closing swing gate closure assembly  

DOE Patents [OSTI]

A swing gate closure assembly for nuclear reactor tipoff assembly wherein the swing gate is cammed open by a fuel element or spacer but is reliably closed at a desired closing rate primarily by hydraulic forces in the absence of a fuel charge.

Chang, Shih-Chih (Richland, WA); Schuck, William J. (Richland, WA); Gilmore, Richard F. (Kennewick, WA)

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Quantum logic gates for superconducting resonator qudits  

SciTech Connect (OSTI)

We study quantum information processing using superpositions of Fock states in superconducting resonators as quantum d-level systems (qudits). A universal set of single and coupled logic gates is theoretically proposed for resonators coupled by superconducting circuits of Josephson junctions. These gates use experimentally demonstrated interactions and provide an attractive route to quantum information processing using harmonic oscillator modes.

Strauch, Frederick W. [Williams College, Williamstown, Massachusetts 01267 (United States)

2011-11-15T23:59:59.000Z

42

Journal Article: Gate-tunable exchange coupling between cobalt...  

Office of Scientific and Technical Information (OSTI)

Gate-tunable exchange coupling between cobalt clusters on graphene Citation Details Title: Gate-tunable exchange coupling between cobalt clusters on graphene Authors: Chen, Hua;...

43

The University of Tennessee's GATE Center for Hybrid Systems...  

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

The University of Tennessee's GATE Center for Hybrid Systems The University of Tennessee's GATE Center for Hybrid Systems 2009 DOE Hydrogen Program and Vehicle Technologies Program...

44

The University of Tennessee's GATE Center for Hybrid Systems...  

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

The University of Tennessee's GATE Center for Hybrid Systems The University of Tennessee's GATE Center for Hybrid Systems Presentation from the U.S. DOE Office of Vehicle...

45

Gating of Permanent Molds for ALuminum Casting  

SciTech Connect (OSTI)

This report summarizes a two-year project, DE-FC07-01ID13983 that concerns the gating of aluminum castings in permanent molds. The main goal of the project is to improve the quality of aluminum castings produced in permanent molds. The approach taken was determine how the vertical type gating systems used for permanent mold castings can be designed to fill the mold cavity with a minimum of damage to the quality of the resulting casting. It is evident that somewhat different systems are preferred for different shapes and sizes of aluminum castings. The main problems caused by improper gating are entrained aluminum oxide films and entrapped gas. The project highlights the characteristic features of gating systems used in permanent mold aluminum foundries and recommends gating procedures designed to avoid common defects. The study also provides direct evidence on the filling pattern and heat flow behavior in permanent mold castings.

David Schwam; John F. Wallace; Tom Engle; Qingming Chang

2004-03-30T23:59:59.000Z

46

Crystal Structure of the Mammalian GIRK2 KplusChannel and Gating Regulation by G Proteins PIP2 and Sodium  

SciTech Connect (OSTI)

G protein-gated K{sup +} channels (Kir3.1--Kir3.4) control electrical excitability in many different cells. Among their functions relevant to human physiology and disease, they regulate the heart rate and govern a wide range of neuronal activities. Here, we present the first crystal structures of a G protein-gated K{sup +} channel. By comparing the wild-type structure to that of a constitutively active mutant, we identify a global conformational change through which G proteins could open a G loop gate in the cytoplasmic domain. The structures of both channels in the absence and presence of PIP{sub 2} suggest that G proteins open only the G loop gate in the absence of PIP{sub 2}, but in the presence of PIP{sub 2} the G loop gate and a second inner helix gate become coupled, so that both gates open. We also identify a strategically located Na{sup +} ion-binding site, which would allow intracellular Na{sup +} to modulate GIRK channel activity. These data provide a structural basis for understanding multiligand regulation of GIRK channel gating.

M Whorton; R MacKinnon

2011-12-31T23:59:59.000Z

47

Quantitative Assessment of Range Fluctuations in Charged Particle Lung Irradiation  

SciTech Connect (OSTI)

Purpose: Water equivalent path length (WEL) variations due to respiration can change the range of a charged particle beam and result in beam overshoot to critical organs or beam undershoot to tumor. We have studied range fluctuations by analyzing four-dimensional computed tomography data and quantitatively assessing potential beam overshoot. Methods and Materials: The maximal intensity volume is calculated by combining the gross tumor volume contours at each respiratory phase in the four-dimensional computed tomography study. The first target volume calculates the maximal intensity volume for the entire respiratory cycle (internal target volume [ITV]-radiotherapy [RT]), and the second target volume is the maximal intensity volume corresponding to gated RT (gated-RT, {approx}30% phase window around exhalation). A compensator at each respiratory phase is calculated. Two 'composite' compensators for ITV-RT and gated-RT are then designed by selecting the minimal compensator depth at the respective respiratory phase. These compensators are then applied to the four-dimensional computed tomography data to estimate beam penetration. Analysis metrics include range fluctuation and overshoot volume, both as a function of gantry angle. We compared WEL fluctuations observed in treating the ITV-RT versus gated-RT in 11 lung patients. Results: The WEL fluctuations were <21.8 mm-WEL and 9.5 mm-WEL for ITV-RT and gated-RT, respectively for all patients. Gated-RT reduced the beam overshoot volume by approximately a factor of four compared with ITV-RT. Such range fluctuations can affect the efficacy of treatment and result in an excessive dose to a distal critical organ. Conclusion: Time varying range fluctuation analysis provides information useful for determining appropriate patient-specific treatment parameters in charged particle RT. This analysis can also be useful for optimizing planning and delivery.

Mori, Shinichiro [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)], E-mail: shinshin@nirs.go.jp; Wolfgang, John; Lu, H.-M.; Schneider, Robert; Choi, Noah C.; Chen, George T.Y. [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)

2008-01-01T23:59:59.000Z

48

David A Gates | Princeton Plasma Physics Lab  

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

A Gates A Gates Principal Research Physicist, Stellerator Physics Lead, Advanced Projects Division, Science Focus Group Leader for Macroscopic Stability David Gates is a principal research physicist for the advanced projects division of PPPL, and the stellarator physics leader at the Laboratory. In the latter capacity he leads collaborative efforts with the Wendelstein 7-X and Large Helical Device stellarator projects in Germany and Japan, respectively. Gates is first author of more than a dozen research papers, including an April, 2012, paper that proposed a possible solution to a critical barrier to fusion as a source of energy for generating electricity. Interests Collisional energy transport High-frequency Alfvén waves Fast-ion energy transfer Ideal and resistive magneto-hydrodynamic stability

49

Gate potential control of nanofluidic devices  

E-Print Network [OSTI]

The effect of an external gate potential control on the nanofluidic nanochannels was experimentally investigated in this work. Like in the field effect transistors (FET) in microelectronics, molecular transport in ...

Le Coguic, Arnaud

2005-01-01T23:59:59.000Z

50

Digital gate pulse generator for cycloconverter control  

DOE Patents [OSTI]

The present invention provides a digital gate pulse generator which controls the output of a cycloconverter used for electrical power conversion applications by determining the timing and delivery of the firing pulses to the switching devices in the cycloconverter. Previous gate pulse generators have been built with largely analog or discrete digital circuitry which require many precision components and periodic adjustment. The gate pulse generator of the present invention utilizes digital techniques and a predetermined series of values to develop the necessary timing signals for firing the switching device. Each timing signal is compared with a reference signal to determine the exact firing time. The present invention is significantly more compact than previous gate pulse generators, responds quickly to changes in the output demand and requires only one precision component and no adjustments.

Klein, Frederick F. (Monroeville, PA); Mutone, Gioacchino A. (Pleasant Hills, PA)

1989-01-01T23:59:59.000Z

51

Yuanmingyuan East Gate of Peking University  

E-Print Network [OSTI]

Dingxiangyuan Cafeteria SupermarketI Parking 32 Northeast Gate C Building C Swimming Hall East Playground and New Energy Technology 32 Institute of Education Schools & Departments A Foreign Student Affairs

Gu, Jin

52

GaTe semiconductor for radiation detection  

DOE Patents [OSTI]

GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materials. The detector can be used, e.g., for detection of illicit nuclear weapons and radiological dispersed devices at ports of entry, in cities, and off shore and for determination of medical isotopes present in a patient.

Payne, Stephen A. (Castro Valley, CA); Burger, Arnold (Nashville, TN); Mandal, Krishna C. (Ashland, MA)

2009-06-23T23:59:59.000Z

53

Unique Functional Properties of a Sensory Neuronal P2X ATP-Gated Channel from Zebrafish  

E-Print Network [OSTI]

of native P2X receptor channels evokes a fast inward current carried by mono- valent and calcium ions in a broad range of calcium- dependent signaling events from the neurogenic control of smooth muscle, and a cysteine-rich extracellular loop resembles that of recently discovered proton-gated channels (Wald- mann

Séguéla, Philippe

54

Paying the Toll: A Political History of the Golden Gate Bridge and Highway District, 1923-1971  

E-Print Network [OSTI]

Gate: the Construction of the Golden Gate Bridge and HighwayCommittee on Golden Gate Bridge and Highway District,versus the Golden Gate Bridge . . . . . . . . . . . . . . .

Dyble, Amy Louise Nelson

2003-01-01T23:59:59.000Z

55

Range of a projectile, including air resistance. Introduction  

E-Print Network [OSTI]

resistance, it is easy to show (elementary physics classes) that if we throw a projectile with a speed vRange of a projectile, including air resistance. Introduction Here we study the motion of a projectile thrown through the air, including the important effects of air resistance.We will investi- gate

Young, A. Peter

56

Voltage-gated Ion Channels and Gating Modifier Toxins William A. Catterall,* Sandrine Cestle,  

E-Print Network [OSTI]

;2 Abstract Voltage-gated sodium, calcium, and potassium channels generate electrical signals required and a pore loop. Their pores are formed by the S5/S6 segments and the pore loop between them and are gated and participate in calcium signaling pathways in nonexcitable cells. Because of their importance in many aspects

Paris-Sud XI, Université de

57

Active dendrites enhance neuronal dynamic range  

E-Print Network [OSTI]

Since the first experimental evidences of active conductances in dendrites, most neurons have been shown to exhibit dendritic excitability through the expression of a variety of voltage-gated ion channels. However, despite experimental and theoretical efforts undertaken in the last decades, the role of this excitability for some kind of dendritic computation has remained elusive. Here we show that, owing to very general properties of excitable media, the average output of a model of active dendritic trees is a highly non-linear function of their afferent rate, attaining extremely large dynamic ranges (above 50 dB). Moreover, the model yields double-sigmoid response functions as experimentally observed in retinal ganglion cells. We claim that enhancement of dynamic range is the primary functional role of active dendritic conductances. We predict that neurons with larger dendritic trees should have larger dynamic range and that blocking of active conductances should lead to a decrease of dynamic range.

Leonardo L. Gollo; Osame Kinouchi; Mauro Copelli

2009-02-26T23:59:59.000Z

58

Gated SIT vidicon streak tube  

SciTech Connect (OSTI)

A recently developed prototype streak tube designed to produce high gain and resolution by incorporating the streak and readout functions in one envelope thereby minimizing photon-to-change transformations and eliminating external coupling losses is presented. The tube is based upon a grid-gated Silicon-Intensified-Target Vidicon (SITV) with integral Focus Projection Scan (FPS) TV readout. Demagnifying electron optics (m=0.63) in the image section map the 40-mm-diameter photocathode image unto a 25-mm-diameter silicon target where gains greater than or equal to10/sup 3/ are achieved with only 10 KV accelerating voltage. This is compared with much lower gains (approx.50) at much higher voltages (approx.30 KV) reported for streak tubes using phosphor screens. Because SIT technology is well established means for electron imaging in vacuum, such fundamental problems as ''backside thinning'' required for electron imaging unto CCDs do not exist. The high spatial resolution (approx.30 lp/mm), variable scan formats, and high speed electrostatic deflection (250 mm/sup 2/ areas are routinely rastered with 256 scan lines in 1.6 ms) available from FPS readout add versatility not available in CCD devices. Theoretical gain and spatial resolution for this design (developed jointly by Los Alamos National Laboratory and General Electric Co.) are compared with similar calculations and measured data obtained for RCA 73435 streaks fiber optically coupled to (1) 25-mm-diameter SIT FPS vidicons and (2) 40-mm-diameter MCPTs (proximity-focused microchannel plate image intensifier tubes) fiber optically coupled to 18-mm-diameter Sb/sub 2/S/sub 3/ FPS vidicons. Sweep sensitivity, shutter ratio, and record lengths for nanosecond duration (20 to 200 ns) streak applications are discussed.

Dunbar, D.L.; Yates, G.J.; Black, J.P.

1985-01-01T23:59:59.000Z

59

The Defeat of the Golden Gate Authority: Regional Planning and Local Power  

E-Print Network [OSTI]

Regional Politics and the Golden Gate Bridge, Philadelphia:Politics and the Golden Gate Bridge, won the Abel WolmanBridge and the Golden Gate Bridge. Moreover, interregional

Dyble, Louise Nelson

2012-01-01T23:59:59.000Z

60

Heralded quantum gates with integrated error detection in optical cavitites  

E-Print Network [OSTI]

We propose and analyze heralded quantum gates between qubits in optical cavities. They employ an auxiliary qubit to report if a successful gate occurred. In this manner, the errors, which would have corrupted a deterministic gate, are converted into a non-unity probability of success: once successful the gate has a much higher fidelity than a similar deterministic gate. Specifically, we describe that a heralded , near-deterministic controlled phase gate (CZ-gate) with the conditional error arbitrarily close to zero and the success probability that approaches unity as the cooperativity of the system, C, becomes large. Furthermore, we describe an extension to near-deterministic N- qubit Toffoli gate with a favorable error scaling. These gates can be directly employed in quantum repeater networks to facilitate near-ideal entanglement swapping, thus greatly speeding up the entanglement distribution.

J. Borregaard; P. Kómár; E. M. Kessler; A. S. Sørensen; M. D. Lukin

2015-01-05T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Simple Template-Based Method to Produce Bradbury-Nielsen Gates  

Science Journals Connector (OSTI)

A Bradbury-Nielsen gate (BNG) consists of two interleaved and electrically isolated sets of wires and can transmit or deflect charged particles by applying a varying voltage difference across the two wire sets. We present a simple template-based method to fabricate \\{BNGs\\} with wire spacings as small as 50 ?m with minimal use of a microscope. The small wire spacing allows modulation rates at tens of megahertz. Using this method, we have fabricated four \\{BNGs\\} with wire spacings of 500, 200, 100, and 50 ?m using 10 ?m gold-coated tungsten wires. The performance of the four \\{BNGs\\} is characterized using an imaging detector and compared with theoretical predictions.

Oh Kyu Yoon; Ignacio A. Zuleta; Matthew D. Robbins; Griffin K. Barbula; Richard N. Zare

2007-01-01T23:59:59.000Z

62

Provably minimal energy using coordinated DVS and power gating  

Science Journals Connector (OSTI)

Both energy and execution speed can be greatly impacted by clock and power gating, nonlinear voltage scaling, and leakage energy. We address the problem of coordinated power gating and dynamic voltage scaling (DVS) to minimize the overall energy consumption ...

Nathaniel A. Conos; Saro Meguerdichian; Foad Dabiri; Miodrag Potkonjak

2014-03-01T23:59:59.000Z

63

Effect of Oxygen on Ni-Silicided FUSI Metal Gate  

E-Print Network [OSTI]

Continual evolution of the CMOS technology requires thinner gate dielectric to maintain high performance. However, when moving into the sub-65 nm CMOS generation, the traditional poly-Si gate approach cannot effectively ...

Yu, H.P.

64

GATE Center of Excellence at UAB for Lightweight Materials and...  

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

Constante (PhD candidate) and Samuel Jasper (PhD candidate) working on composite beams 9 Accomplishments and Progress: GATE Directly Funded Students (2005-2011) GATE SCHOLAR...

65

Operating conditions of submerged gates and possibilities of improvement  

Science Journals Connector (OSTI)

1. Submerged gates, employed at high-head hydroelectric stations, do not completely meet the demands placed on t...

P. R. Khlopenkov

1971-06-01T23:59:59.000Z

66

Radar Vehicle Detection Within Four Quadrant Gate Crossings  

E-Print Network [OSTI]

Vehicle Detection System for Four-Quadrant Gate Warning Systems and Blocked Crossing Detection. Washington. . . . . Radar Vehicle Detection Within Four Quadrant Gate Crossings Dylan Horne 2014 Global Level and delay but ultimately in loss of life. Radar Vehicle Detection Within Four Quadrant Gate Crossings #12

Illinois at Urbana-Champaign, University of

67

Accuracy and Consistency of Respiratory Gating in Abdominal Cancer Patients  

SciTech Connect (OSTI)

Purpose: To evaluate respiratory gating accuracy and intrafractional consistency for abdominal cancer patients treated with respiratory gated treatment on a regular linear accelerator system. Methods and Materials: Twelve abdominal patients implanted with fiducials were treated with amplitude-based respiratory-gated radiation therapy. On the basis of daily orthogonal fluoroscopy, the operator readjusted the couch position and gating window such that the fiducial was within a setup margin (fiducial-planning target volume [f-PTV]) when RPM indicated “beam-ON.” Fifty-five pre- and post-treatment fluoroscopic movie pairs with synchronized respiratory gating signal were recorded. Fiducial motion traces were extracted from the fluoroscopic movies using a template matching algorithm and correlated with f-PTV by registering the digitally reconstructed radiographs with the fluoroscopic movies. Treatment was determined to be “accurate” if 50% of the fiducial area stayed within f-PTV while beam-ON. For movie pairs that lost gating accuracy, a MATLAB program was used to assess whether the gating window was optimized, the external-internal correlation (EIC) changed, or the patient moved between movies. A series of safety margins from 0.5 mm to 3 mm was added to f-PTV for reassessing gating accuracy. Results: A decrease in gating accuracy was observed in 44% of movie pairs from daily fluoroscopic movies of 12 abdominal patients. Three main causes for inaccurate gating were identified as change of global EIC over time (?43%), suboptimal gating setup (?37%), and imperfect EIC within movie (?13%). Conclusions: Inconsistent respiratory gating accuracy may occur within 1 treatment session even with a daily adjusted gating window. To improve or maintain gating accuracy during treatment, we suggest using at least a 2.5-mm safety margin to account for gating and setup uncertainties.

Ge, Jiajia; Santanam, Lakshmi; Yang, Deshan [Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri (United States)] [Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri (United States); Parikh, Parag J., E-mail: pparikh@radonc.wustl.edu [Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri (United States)

2013-03-01T23:59:59.000Z

68

Gate-controlled ultraviolet photo-etching of graphene edges  

SciTech Connect (OSTI)

The chemical reactivity of graphene under ultraviolet (UV) light irradiation is investigated under positive and negative gate electric fields. Graphene edges are selectively etched when negative gate voltages are applied while the reactivity is significantly suppressed for positive gate voltages. Oxygen adsorption onto graphene is significantly affected by the Fermi level of the final state achieved during previous electrical measurements. UV irradiation after negative-to-positive gate sweeps causes predominant oxygen desorption while UV irradiation after gate sweeps in the opposite direction causes etching of graphene edges.

Mitoma, Nobuhiko; Nouchi, Ryo [Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, Sakai, Osaka 599-8570 (Japan)] [Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, Sakai, Osaka 599-8570 (Japan)

2013-11-11T23:59:59.000Z

69

Improving the fidelity of optical Zeno gates via distillation  

SciTech Connect (OSTI)

We have modeled the Zeno effect controlled-sign gate of Franson et al. [Phys. Rev. A 70, 062302 (2004)] and shown that high two-photon to one-photon absorption ratios, {kappa}, are needed for high fidelity free-standing operation. Hence we instead employ this gate for cluster state fusion, where the requirement for {kappa} is less restrictive. With the help of partially offline one-photon and two-photon distillations, we can achieve a fusion gate with unity fidelity but nonunit probability of success. We conclude that for {kappa}>2200, the Zeno fusion gate will out perform the equivalent linear optics gate.

Leung, Patrick M.; Ralph, Timothy C. [Centre for Quantum Computer Technology, Department of Physics, University of Queensland, Brisbane 4072 (Australia)

2006-12-15T23:59:59.000Z

70

AgraGate Carbon Credits Corporation | Open Energy Information  

Open Energy Info (EERE)

AgraGate Carbon Credits Corporation AgraGate Carbon Credits Corporation Jump to: navigation, search Name AgraGate Carbon Credits Corporation Place Des Moines, Iowa Zip 50266 Product Offset aggregators that work with American farmers, ranchers, and private forest owners, providing clients with cash flows produced by the sale of credits. Offsets are sold on the Chicago Climate Exchange References AgraGate Carbon Credits Corporation[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. AgraGate Carbon Credits Corporation is a company located in Des Moines, Iowa . References ↑ "AgraGate Carbon Credits Corporation" Retrieved from "http://en.openei.org/w/index.php?title=AgraGate_Carbon_Credits_Corporation&oldid=341882"

71

Arbitrary two-qubit computation in 23 elementary gates  

SciTech Connect (OSTI)

We address the problem of constructing quantum circuits to implement an arbitrary two-qubit quantum computation. We pursue circuits without ancilla qubits and as small a number of elementary quantum gates as possible. Our lower bound for worst-case optimal two-qubit circuits calls for at least 17 gates: 15 one-qubit rotations and 2 controlled-NOT (CNOT) gates. We also constructively prove a worst-case upper bound of 23 elementary gates, of which at most four (CNOT gates) entail multiqubit interactions. Our analysis shows that synthesis algorithms suggested in previous work, although more general, entail larger quantum circuits than ours in the special case of two qubits. One such algorithm has a worst case of 61 gates, of which 18 may be CNOT gates.

Bullock, Stephen S.; Markov, Igor L. [Department of Mathematics, The University of Michigan, Ann Arbor, Michigan 48109-2122, USA (United States); Mathematical and Computational Sciences Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8910, USA (United States); Department of Electrical Engineering and Computer Science, The University of Michigan, 1301 Beal Avenue-EECS, Ann Arbor, Michigan 48109-2122, USA (United States)

2003-07-01T23:59:59.000Z

72

Gates, Oregon: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gates, Oregon: Energy Resources Gates, Oregon: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 44.7562329°, -122.4167483° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.7562329,"lon":-122.4167483,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

73

210 nature neuroscience volume 5 no 3 march 2002 Calcium entry into cells through voltage-gated Ca2+ channels  

E-Print Network [OSTI]

voltage-gated Ca2+ channels initiates a wide range of cellular processes including protein phosphorylation, gene expression and neurotransmitter release1. Neuronal Ca2+ channels consist of a pore-forming 1 by neurotransmitters inhibits Cav2.1 and Cav2.2 channels, which mediate P/Q-type and N- type Ca2+ currents

Palczewski, Krzysztof

74

Optical Determination of Gate--Tunable Bandgap in Bilayer Graphene  

E-Print Network [OSTI]

Tunable Bandgap in Bilayer Graphene Yuanbo Zhang* 1 , Tsung-gate-tunable bandgap in graphene bilayers with magnitude asbands. In two- dimensional graphene bilayers this bandgap

Zhang, Yuanbo

2010-01-01T23:59:59.000Z

75

Penn State DOE Graduate Automotive Technology Education (Gate...  

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

Graduate Automotive Technology Education (Gate) Program for In-Vehicle, High-Power Energy Storage Systems 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program...

76

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

Office of Environmental Management (EM)

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

77

GATE Center of Excellence at UAB for Lightweight Materials and...  

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

Constante (PhD candidate) and Samuel Jasper (PhD candidate) working on composite beams GATE courses (some newly developed, some based on tailoring content in existing...

78

Self-terminating diffraction gates femtosecond X-ray nanocrystallograp...  

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

Self-terminating diffraction gates femtosecond X-ray nanocrystallography measurements Authors: Barty, A., Caleman, C., Aquila, A., Timneanu, N., Lomb, L., White, T. A., Andreasson,...

79

Sandia National Laboratories: ECIS and i-GATE: Innovation Hub...  

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

support system to accelerate the commercialization of innovative technologies related to green transportation and clean energy. There are now eight i-GATE clients developing fuel...

80

Improved design of a deep vertical-lift gate  

Science Journals Connector (OSTI)

1. Redesigning of the framework of a deep vertical-lift gate by replacing the multibeam framework by a two-beam ...

P. R. Khlopenkov

1986-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Vehicle Technologies Office: Graduate Automotive Technology Education (GATE)  

Broader source: Energy.gov [DOE]

DOE established the Graduate Automotive Technology Education (GATE) Centers of Excellence to provide future generations of engineers and scientists with knowledge and skills in advanced automotive...

82

Cavity-QED-based quantum phase gate  

E-Print Network [OSTI]

are detuned by an amount D from the cavity mode 1, i.e., vbc5n11D . A quantum phase gate with a p phase shift is implemented if the atom in its ground state uc& passes through the cavity such that ~1! the detuning D is equal to g2, and ~2! the interaction...- lowing. The effective Hamiltonian for the interaction, in the di- pole and rotating-wave approximations, is H5H01H1 , ~3! where H05\

Zubairy, M. Suhail; Kim, M.; Scully, Marlan O.

2003-01-01T23:59:59.000Z

83

Optical AND and NOT gates at 40 Gbps using electro-absorption modulator/photodiode pairs.  

SciTech Connect (OSTI)

We demonstrate an optical gate architecture using electro-absorption modulator/photodiode pairs to perform AND and NOT functions. Optical bandwidth for both gates reach 40 GHz. Also shown are AND gate waveforms at 40 Gbps.

Tauke-Pedretti, Anna; Overberg, Mark E.; Skogen, Erik J.; Alford, Charles Fred; Sullivan, Charles Thomas; Vawter, Gregory Allen; Peake, Gregory Merwin; Torres, David L.

2010-06-01T23:59:59.000Z

84

Computers: Honeywell's New Range  

Science Journals Connector (OSTI)

... THE recent announcement by Honeywell of a new range of computers implies that the company's acquisition of the business ... software, maintenance and so on) is fully taken into account, the advantages of the Honeywell range could turn out to be much greater. The larger members of the new ...

1971-02-26T23:59:59.000Z

85

Modeling gated neutron images of THD capsules  

SciTech Connect (OSTI)

Time gating a neutron detector 28m from a NIF implosion can produce images at different energies. The brighter image near 14 MeV reflects the size and symmetry of the capsule 'hot spot'. Scattered neutrons, {approx}9.5-13 MeV, reflect the size and symmetry of colder, denser fuel, but with only {approx}1-7% of the neutrons. The gated detector records both the scattered neutron image, and, to a good approximation, an attenuated copy of the primary image left by scintillator decay. By modeling the imaging system the energy band for the scattered neutron image (10-12 MeV) can be chosen, trading off the decayed primary image and the decrease of scattered image brightness with energy. Modeling light decay from EJ399, BC422, BCF99-55, Xylene, DPAC-30, and Liquid A leads to a preference from BCF99-55 for the first NIF detector, but DPAC 30 and Liquid A would be preferred if incorporated into a system. Measurement of the delayed light from the NIF scintillator using implosions at the Omega laser shows BCF99-55 to be a good choice for down-scattered imaging at 28m.

Wilson, Douglas Carl [Los Alamos National Laboratory; Grim, Gary P [Los Alamos National Laboratory; Tregillis, Ian L [Los Alamos National Laboratory; Wilke, Mark D [Los Alamos National Laboratory; Morgan, George L [Los Alamos National Laboratory; Loomis, Eric N [Los Alamos National Laboratory; Wilde, Carl H [Los Alamos National Laboratory; Oertel, John A [Los Alamos National Laboratory; Fatherley, Valerie E [Los Alamos National Laboratory; Clark, David D [Los Alamos National Laboratory; Schmitt, Mark J [Los Alamos National Laboratory; Merrill, Frank E [Los Alamos National Laboratory; Wang, Tai - Sen F [Los Alamos National Laboratory; Danly, Christopher R [Los Alamos National Laboratory; Batha, Steven H [Los Alamos National Laboratory; Patel, M [LLNL; Sepke, S [LLNL; Hatarik, R [LLNL; Fittinghoff, D [LLNL; Bower, D [LLNL; Marinak, M [LLNL; Munro, D [LLNL; Moran, M [LLNL; Hilko, R [NSTEC; Frank, M [LLNL; Buckles, R [NSTEC

2010-01-01T23:59:59.000Z

86

Sizing sliding gate valves for steam service  

SciTech Connect (OSTI)

Sliding gate valves have been used in thousands of applications during the past 40 yr. While steam control is a common application for these valves, thy are also used to control other gases and liquids. The sliding gate design provides straight-through flow, which minimizes turbulence, vibration, and noise. Seats are self-cleaning and self-lapping to provide a tight, long-lasting shutoff. A correctly sized valve is essential for accurate control. Valve size should be determined by service and system requirements, not by the size of the existing pipeline. Sizing a valve on the basis of pipeline size usually results in an oversized valve and poor control. Generally, regulator size is smaller than pipe size. Whenever complete information is known (inlet pressure, outlet pressure, or pressure drop, and required flow), determine the valve flow coefficient (C{sub v}) using the equations in ANSI/ISA S75.01 or a flow sizing chart. Tables of values for various types of valves are available from manufacturers. However, when complete system requirements are not known, valve oversizing is prevented by determining the design capacity of piping downstream from the valve. The valve should not be sized to pass more flow than the maximum amount the pipe can handle at a reasonable velocity. An example calculation is given.

Bollinger, R. [Jordan Value, Cincinnati, OH (United States)

1995-11-06T23:59:59.000Z

87

A p-cell approach to integer gate sizing  

E-Print Network [OSTI]

cell (p-cell) approach to the generation of layouts of standard gates is presented. The use of constant delay model for gate delay estimation is proposed which eliminates the need for maintaining huge volumes of delay tables in the standard cell library...

Doddannagari, Uday

2009-05-15T23:59:59.000Z

88

A SIMULATION MODEL FOR FLOATING-GATE MOS SYNAPSE TRANSISTORS  

E-Print Network [OSTI]

A SIMULATION MODEL FOR FLOATING-GATE MOS SYNAPSE TRANSISTORS Kambiz Rahimi, Chris Diorio, Cecilia, Seattle, Washington ABSTRACT We propose an empirical simulation model for p-channel floating-gate MOS and accurate simulation model for the synaptic devices, many of these circuits were designed using equation

Diorio, Chris

89

Space Microbiology  

Science Journals Connector (OSTI)

...2010 ARTICLE REVIEWS Space Microbiology Gerda Horneck...2005. Metagenomic libraries from uncultured microorganisms...environments. Gravit. Space Biol. 18: 85-86...rendering plant process. Public Health Rep. 72: 176...bacteriophage. Life Sci. Space Res. 13: 143-149...

Gerda Horneck; David M. Klaus; Rocco L. Mancinelli

2010-03-01T23:59:59.000Z

90

E-Print Network 3.0 - aluminum oxide gate Sample Search Results  

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

2 Charge Trapping Characteristics of SONOS Capacitors with Control Gates of Different Work Functions during ProgramErase Operations Summary: ABSTRACT The control gate...

91

Paying the Toll: A Political History of the Golden Gate Bridge and Highway District, 1923-1971  

E-Print Network [OSTI]

Final Environmental Statement Golden Gate Bridge, HighwayGolden Gate Bridge Highway and Transportation District, Draft Environmental

Dyble, Amy Louise Nelson

2003-01-01T23:59:59.000Z

92

Metal-gate-induced reduction of the interfacial layer in Hf oxide gate stacks  

SciTech Connect (OSTI)

The properties of high-{kappa} metal oxide gate stacks are often determined in the final processing steps following dielectric deposition. We report here results from medium energy ion scattering and x-ray photoelectron spectroscopy studies of oxygen and silicon diffusion and interfacial layer reactions in multilayer gate stacks. Our results show that Ti metallization of HfO{sub 2}/SiO{sub 2}/Si stacks reduces the SiO{sub 2} interlayer and (to a more limited extent) the HfO{sub 2} layer. We find that Si atoms initially present in the interfacial SiO{sub 2} layer incorporate into the bottom of the high-{kappa} layer. Some evidence for Ti-Si interdiffusion through the high-{kappa} film in the presence of a Ti gate in the crystalline HfO{sub 2} films is also reported. This diffusion is likely to be related to defects in crystalline HfO{sub 2} films, such as grain boundaries. High-resolution transmission electron microscopy and corresponding electron energy loss spectroscopy scans show aggressive Ti-Si intermixing and oxygen diffusion to the outermost Ti layer, given high enough annealing temperature. Thermodynamic calculations show that the driving forces exist for some of the observed diffusion processes.

Goncharova, L. V.; Dalponte, M.; Gustafsson, T.; Celik, O.; Garfunkel, E.; Lysaght, P. S.; Bersuker, G. [Department of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers University, 136 Frelinghuysen Rd., Piscataway, New Jersey 08854 (United States); Department of Chemistry and Chemical Biology, and Laboratory for Surface Modification, Rutgers University, 610 Taylor Rd., Piscataway, New Jersey 08854 (United States); SEMATECH, 2705 Montopolis Dr., Austin, Texas 78741 (United States)

2007-03-15T23:59:59.000Z

93

Nanosecond Range Heating and Temperature Measurement on Thin Layers Experiment and Simulation  

E-Print Network [OSTI]

Nanosecond Range Heating and Temperature Measurement on Thin Layers Experiment and Simulation W for sensitivity measurements, heating resistance and temperature sensor. Taking advantage of using the gate electrode for heating only the sensitive two layer system LaF3/Pt (thickness only 300 nm) has to be at high

Moritz, Werner

94

Nonperturbative short-range dynamics in TMDs  

SciTech Connect (OSTI)

This presentation covers: deep inelastic processes and transverse momentum distributions; chiral symmetry breaking, including the physical picture, the dynamical model, and parton distributions; partonic structures, including transverse momentum distributions, coordinate space correlator, and short range correlations; and measurements of semi-inclusive deep inelastic scattering, correlations, and multi-parton processes in pp interactions.

Weiss, Christian [JLAB

2013-05-01T23:59:59.000Z

95

RangeTables.xls  

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

(MeVcmmg) LET vs. Range in Si for 25 MeV SEE Beams (low LET) 4 He 14 N 0 0.5 1 1.5 0 600 1200 1800 2400 3000 3600 4 He 14 N 22 Ne 0 1 2 3 4 5 6 7 8 9 10 0 100 200 300 400 500...

96

Neutron scattering and extra short range interactions  

E-Print Network [OSTI]

The available data on neutron scattering were analyzed to constrain a hypothetical new short-range interaction. We show that these constraints are several orders of magnitude better than those usually cited in the range between 1 pm and 5 nm. This distance range occupies an intermediate space between collider searches for strongly coupled heavy bosons and searches for new weak macroscopic forces. We emphasise the reliability of the neutron constraints in so far as they provide several independent strategies. We have identified the most promising way to improve them.

V. V. Nesvizhevsky; G. Pignol; K. V. Protasov

2007-11-14T23:59:59.000Z

97

Precipitation Processes During ARM (1997), TOGA COARE (1992), GATE (1974), SCSMEX (1998), and KWAJEX (1999): Con...  

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

Precipitation Processes During ARM (1997), TOGA Precipitation Processes During ARM (1997), TOGA COARE (1992), GATE (1974), SCSMEX (1998), and KWAJEX (1999): Consistent 2D and 3D Cloud Resolving Model Simulations W.-K Tao, C.-L. Shie, J. Simpson, D. Starr, D. Johnson, and Y. Sud Mesoscale Atmospheric Process Branch (Code 912) Laboratory for Atmospheres National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland Introduction A basic characteristic of cloud-resolving models (CRMs) is that their governing equations are non- hydrostatic since the vertical and horizontal scales of convection are similar. Such models are also necessary in order to allow gravity waves, such as those triggered by clouds, to be resolved explicitly. CRMs use sophisticated and physically realistic parameterizations of cloud microphysical processes

98

RANGE DESIGN CRITERIA  

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

RANGE DESIGN CRITERIA RANGE DESIGN CRITERIA U.S. DEPARTMENT OF ENERGY Office of Health, Safety and Security AVAILABLE ONLINE AT: INITIATED BY: http://www.hss.energy.gov Office of Health, Safety and Security Notices This document is intended for the exclusive use of elements of the Department of Energy (DOE), to include the National Nuclear Security Administration, their contractors, and other government agencies/individuals authorized to use DOE facilities. DOE disclaims any and all liability for personal injury or property damage due to use of this document in any context by any organization, group, or individual, other than during official government activities. Local DOE management is responsible for the proper execution of firearms-related programs for

99

Micro-mechanical logic for field produceable gate arrays  

E-Print Network [OSTI]

A paradigm of micro-mechanical gates for field produceable logic is explored. A desktop manufacturing system is sought after which is capable of printing functional logic devices in the field. A logic scheme which induces ...

Prakash, Manu

2005-01-01T23:59:59.000Z

100

On the Query Complexity of Perfect Gate Discrimination  

E-Print Network [OSTI]

On the Query Complexity of Perfect Gate Discrimination Giulio Chiribella1 , Giacomo Mauro D'Ariano2 queries are called at different time steps [5]. T Q C © Giulio Chiribella, Giacomo Mauro D

D'Ariano, Giacomo Mauro

Note: This page contains sample records for the topic "range gate spacing" 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

How many copies are needed for gate discrimination?  

E-Print Network [OSTI]

How many copies are needed for gate discrimination? Giulio Chiribella1 , Giacomo Mauro D'Ariano2 Chiribella, Giacomo Mauro D'Ariano, and Martin Roetteler; licensed under Creative Commons License

D'Ariano, Giacomo Mauro

102

Parameter Mismatches, Chaos Synchronization and Fast Dynamic Logic Gates  

E-Print Network [OSTI]

By using chaos synchronization between non-identical multiple time delay semiconductor lasers with optoelectronic feedbacks, we demonstrate numerically how fast dynamic logic gates can be constructed. The results may be helpful to obtain a computational hardware with reconfigurable properties.

E. M. Shahverdiev

2009-07-02T23:59:59.000Z

103

Innovation Spaces  

E-Print Network [OSTI]

Innovation ecosystems today are the lifeblood or the great hope of many major economies, but at the heart of these ecosystems, there are places and spaces. Silicon Valley is not just a place, but a cluster of spaces where ...

Schneider-Sikorsky, Patrick A

2014-01-01T23:59:59.000Z

104

Single-Step Implementation of Universal Quantum Gates  

SciTech Connect (OSTI)

We construct optimized implementations of the controlled-NOT and other universal two-qubit gates that, unlike many of the previously proposed protocols, are carried out in a single step. The new protocols require tunable interqubit couplings but, in return, show a significant improvement in the quality of gate operations. We make specific predictions for coupled Josephson junction qubits and compare them with the results of recent experiments.

Grigorenko, I.A.; Khveshchenko, D.V. [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2005-09-09T23:59:59.000Z

105

Self-aligned submicron gate length gallium arsenide MESFET  

E-Print Network [OSTI]

SELF-ALIGNED SUBMICRON GATE LENGTH GALLIUM ARSENIDE MESFET A Thesis by HSIEN-CHING HUANG Submitted to the Graduate College of Texas ASSAM University in partial fulfillment of the requirement for the degree ol' MASTER OF SCIENCE May 1987... Major Subject: Electrical Engineering SELF-ALIGNED SUBMICRON GATE LENGTH GALLIUM ARSENIDE MESFET A Thesis by HSIEN-CHING HUANG Approved as to style and content by: Mark. H. Weichold (Chairman of Committee) Donald L. Parker (Member) dali L...

Huang, Hsien-Ching

2012-06-07T23:59:59.000Z

106

Neutron range spectrometer  

DOE Patents [OSTI]

A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are colliminated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. 1 fig.

Manglos, S.H.

1988-03-10T23:59:59.000Z

107

Accelerometer-Based method for extracting respiratory and cardiac gating information for dual gating during nuclear medicine imaging  

Science Journals Connector (OSTI)

Both respiratory and cardiac motions reduce the quality and consistency of medical imaging specifically in nuclear medicine imaging. Motion artifacts can be eliminated by gating the image acquisition based on the respiratory phase and cardiac contractions ...

Mojtaba Jafari Tadi, Tero Koivisto, Mikko Pänkäälä, Ari Paasio

2014-01-01T23:59:59.000Z

108

Range imaging laser radar  

DOE Patents [OSTI]

A laser source is operated continuously and modulated periodically (typicy sinusoidally). A receiver imposes another periodic modulation on the received optical signal, the modulated signal being detected by an array of detectors of the integrating type. Range to the target determined by measuring the phase shift of the intensity modulation on the received optical beam relative to a reference. The receiver comprises a photoemitter for converting the reflected, periodically modulated, return beam to an accordingly modulated electron stream. The electron stream is modulated by a local demodulation signal source and subsequently converted back to a photon stream by a detector. A charge coupled device (CCD) array then averages and samples the photon stream to provide an electrical signal in accordance with the photon stream.

Scott, Marion W. (Albuquerque, NM)

1990-01-01T23:59:59.000Z

109

Encoding range minima and range top-2 queries  

Science Journals Connector (OSTI)

...give a data structure whose space usage is 2n+o(n) bits...efficiently (in terms of both space and time). We consider the...reach an internal limit of the library to handle large integers: the space usage of the dynamic programing...

2014-01-01T23:59:59.000Z

110

Neutron range spectrometer  

DOE Patents [OSTI]

A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are collimnated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. The computer solves the following equation in the analysis: ##EQU1## where: N(x).DELTA.x=the number of neutron interactions measured between a position x and x+.DELTA.x, A.sub.i (E.sub.i).DELTA.E.sub.i =the number of incident neutrons with energy between E.sub.i and E.sub.i +.DELTA.E.sub.i, and C=C(E.sub.i)=N .sigma.(E.sub.i) where N=the number density of absorbing atoms in the position sensitive counter means and .sigma. (E.sub.i)=the average cross section of the absorbing interaction between E.sub.i and E.sub.i +.DELTA.E.sub.i.

Manglos, Stephen H. (East Syracuse, NY)

1989-06-06T23:59:59.000Z

111

Space Nuclear  

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

a "Group Achievement Award" by the National Aeronautics and Space Administration (NASA) for their efforts as part of the New Horizons mission launch in 2006. More....

112

The NASA Food Commercial Space  

E-Print Network [OSTI]

The NASA Food Technology Commercial Space Center and How Your Company Can Participate space in a range of food development projects. For more information about NASA FTCSC or to arrange a presentation about the NASA FTCSC program, contact Dr. Anthony L. Pometto III Director NASA Food Technology

Lin, Zhiqun

113

Space Weather  

E-Print Network [OSTI]

magnetic field that enshrouds Earth is subject to a continuing low dose of galactic cosmic radiation. The best available estimates predict that exposure to such radiation for as little as a year may-inducing radiation in space. Eugene N. Parker 18 August 2005 Any space traveler far removed from the protective

Shepherd, Simon

114

HiRes camera and LIDAR ranging system for the Clementine mission  

SciTech Connect (OSTI)

Lawrence Livermore National Laboratory developed a space-qualified High Resolution (HiRes) imaging LIDAR (Light Detection And Ranging) system for use on the DoD Clementine mission. The Clementine mission provided more than 1.7 million images of the moon, earth, and stars, including the first ever complete systematic surface mapping of the moon from the ultra-violet to near-infrared spectral regions. This article describes the Clementine HiRes/LIDAR system, discusses design goals and preliminary estimates of on-orbit performance, and summarizes lessons learned in building and using the sensor. The LIDAR receiver system consists of a High Resolution (HiRes) imaging channel which incorporates an intensified multi-spectral visible camera combined with a Laser ranging channel which uses an avalanche photo-diode for laser pulse detection and timing. The receiver was bore sighted to a light-weight McDonnell-Douglas diode-pumped ND:YAG laser transmitter that emmitted 1.06 {micro}m wavelength pulses of 200 mJ/pulse and 10 ns pulse-width, The LIDAR receiver uses a common F/9.5 Cassegrain telescope assembly. The optical path of the telescope is split using a color-separating beamsplitter. The imaging channel incorporates a filter wheel assembly which spectrally selects the light which is imaged onto a custom 12 mm gated image intensifier fiber-optically-coupled into a 384 x 276 pixel frame transfer CCD FPA. The image intensifier was spectrally sensitive over the 0.4 to 0.8 {micro}m wavelength region. The six-position filter wheel contained 4 narrow spectral filters, one broadband and one blocking filter. At periselene (400 km) the HiRes/LIDAR imaged a 2.8 km swath width at 20-meter resolution. The LIDAR function detected differential signal return with a 40-meter range accuracy, with a maximum range capability of 640 km, limited by the bit counter in the range return counting clock.

Ledebuhr, A.G.; Kordas, J.F.; Lewis, I.T. [and others

1995-04-01T23:59:59.000Z

115

Interfacial Layer Growth Condition Dependent Carrier Transport Mechanisms in HfO2/SiO2 Gate Stacks  

SciTech Connect (OSTI)

The temperature and field dependent leakage current in HfO{sub 2}/SiO{sub 2} gate stack for in situ steam grown and chemical interfacial layers (ILs) are studied in the temperature range of 20 C to 105 C. Poole-Frenkel mechanism in high field whereas Ohmic conduction in low field region are dominant for both devices. Leakage current decreases whereas both trap energy level ({phi}{sub t}) and activation energy (E{sub a}) increase for chemically grown IL devices. The trap level energy, ({phi}{sub t}) -0.2 eV, indicates that doubly charged oxygen vacancies (V{sup 2-}) are the active electron traps which contribute to the leakage current in these gate stacks.

Sahoo, S. K.; Misra, D.

2012-06-04T23:59:59.000Z

116

Ligand-gated Diffusion Across the Bacterial Outer Membrane  

SciTech Connect (OSTI)

Ligand-gated channels, in which a substrate transport pathway is formed as a result of the binding of a small-molecule chemical messenger, constitute a diverse class of membrane proteins with important functions in prokaryotic and eukaryotic organisms. Despite their widespread nature, no ligand-gated channels have yet been found within the outer membrane (OM) of Gram-negative bacteria. Here we show, using in vivo transport assays, intrinsic tryptophan fluorescence and X-ray crystallography, that high-affinity (submicromolar) substrate binding to the OM long-chain fatty acid transporter FadL from Escherichia coli causes conformational changes in the N terminus that open up a channel for substrate diffusion. The OM long-chain fatty acid transporter FadL from E. coli is a unique paradigm for OM diffusion-driven transport, in which ligand gating within a {beta}-barrel membrane protein is a prerequisite for channel formation.

B Lepore; M Indic; H Pham; E Hearn; D Patel; B van den Berg

2011-12-31T23:59:59.000Z

117

Discussion of long-range weather prediction  

SciTech Connect (OSTI)

A group of scientists at Los Alamos have held a series of discussions of the issues in and prospects for improvements in Long-range Weather Predictions Enabled by Proving of the Atmosphere at High Space-Time Resolution. The group contained the requisite skills for a full evaluation, although this report presents only an informal discussion of the main technical issues. The group discussed all aspects of the proposal, which are grouped below into the headings: (1) predictability; (2) sensors and satellites, (3) DIAL and atmospheric sensing; (4) localized transponders; and (5) summary and integration. Briefly, the group agreed that the relative paucity of observations of the state of the atmosphere severely inhibits the accuracy of weather forecasts, and any program that leads to a more dense and uniform observational network is welcome. As shown in Long-range Weather more dense and uniform observational network is welcome. As shown in Long-range Weather Predictions, the pay-back of accurate long-range forecasts should more than justify the expenditure associated with improved observations and forecast models required. The essential step is to show that the needed technologies are available for field test and space qualification.

Canavan, G.H.

1998-09-10T23:59:59.000Z

118

On the Role of Hadamard Gates in Quantum Circuits  

E-Print Network [OSTI]

We study a reduced quantum circuit computation paradigm in which the only allowable gates either permute the computational basis states or else apply a "global Hadamard operation", i.e. apply a Hadamard operation to every qubit simultaneously. In this model, we discuss complexity bounds (lower-bounding the number of global Hadamard operations) for common quantum algorithms : we illustrate upper bounds for Shor's Algorithm, and prove lower bounds for Grover's Algorithm. We also use our formalism to display a gate that is neither quantum-universal nor classically simulable, on the assumption that Integer Factoring is not in BPP.

Dan Shepherd

2005-08-22T23:59:59.000Z

119

Zirconium-doped tantalum oxide high-k gate dielectric films  

E-Print Network [OSTI]

layer formation and properties were studied with or without an inserted thin tantalum nitride (TaNx) layer. The gate electrode material influence on the dielectric properties was also investigated. Four types of gate materials, i.e., aluminum (Al...

Tewg, Jun-Yen

2005-02-17T23:59:59.000Z

120

Realizing Three-Qubit Quantum-Gate Operation in a Cavity-QED System  

Science Journals Connector (OSTI)

Three-qubit quantum phase-gate and C2-NOT gate realization in a cavity-QED system is proposed where highly detuned field modes interact with a four-level system in an...

Joshi, Amitabh; Xiao, Min

Note: This page contains sample records for the topic "range gate spacing" 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

Deep gates of a new design for closure of diversion tunnels  

Science Journals Connector (OSTI)

1. The discussed gate has a number of merits: the absence of deformation of the stream (except for deformation w...

P. R. Khlopenkov

1968-02-01T23:59:59.000Z

122

Space Research  

Science Journals Connector (OSTI)

In the two years since the last SPIE meeting on this topic there has been much activity in both ground and space based interferometry. The author reviews those developments. He also summarizes the Strawman Sci...

G. Burkhardt; U. Esser; H. Hefele; I. Heinrich; W. Hofmann…

1998-01-01T23:59:59.000Z

123

Space Microbiology  

Science Journals Connector (OSTI)

...membranes under conditions of free fall (in a drop tower) and hypergravity (in a centrifuge). This...operation in the International Space Station. SAE technical paper 2006-01-2157. SAE, Warrendale, PA. 225 Rothschild, L., and...

Gerda Horneck; David M. Klaus; Rocco L. Mancinelli

2010-03-01T23:59:59.000Z

124

Power and thermal effects of SRAM vs. Latch-Mux design styles and clock gating choices  

Science Journals Connector (OSTI)

This paper studies the impact on energy efficiency and thermal behavior of design style and clock-gating style in queue and array structures. These structures are major sources of power dissipation, and both design styles and various clock gating schemes ... Keywords: architecture, clock gating, power, temperature

Yingmin Li; Mark Hempstead; Patrick Mauro; David Brooks; Zhigang Hu; Kevin Skadron

2005-08-01T23:59:59.000Z

125

Geometric phase gate on an optical transition for ion trap quantum computation C. F. Roos,2  

E-Print Network [OSTI]

Geometric phase gate on an optical transition for ion trap quantum computation K. Kim,1 C. F. Roos We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric

Blatt, Rainer

126

Steric Gate Variants of UmuC Confer UV Hypersensitivity on Escherichia coli  

Science Journals Connector (OSTI)

...on survival. FIG. 1. The steric gate residue of UmuC is predicted to approach...blue), and residues F10 and steric gate Y11 (red). The backbone of UmuC is shown...Homo sapiens. FIG. 2. The steric gate Y11 and F10 variants in UmuC cause...

Brenna W. Shurtleff; Jaylene N. Ollivierre; Mohammad Tehrani; Graham C. Walker; Penny J. Beuning

2009-05-29T23:59:59.000Z

127

Simple Template-Based Method to Produce Bradbury-Nielsen Gates  

E-Print Network [OSTI]

ARTICLES Simple Template-Based Method to Produce Bradbury-Nielsen Gates Oh Kyu Yoon, Ignacio A University, Stanford, California, USA A Bradbury-Nielsen gate (BNG) consists of two interleaved as a Bradbury-Nielsen gate (BNG), which consists of two interleaved and electrically isolated sets of wires

Zare, Richard N.

128

Nanometer scale linewidth control during etching of polysilicon gates in high-density plasmas  

Science Journals Connector (OSTI)

We address some of the plasma issues encountered for ultimate silicon gate patterning that should be fixed in order to establish the long term viability of plasma processes in integrated circuits manufacturing. For sub-100-nm gate dimensions, one of ... Keywords: CMOS scaling, critical dimension control, gate patterning, plasma etching

O. Joubert; E. Pargon; J. Foucher; X. Detter; G. Cunge; L. Vallier

2003-09-01T23:59:59.000Z

129

Engineering Light-Gated Ion Channels Matthew R. Banghart, Matthew Volgraf, and Dirk Trauner*  

E-Print Network [OSTI]

Engineering Light-Gated Ion Channels Matthew R. Banghart, Matthew Volgraf, and Dirk Trauner covers the molecular principles that guide the engineering of light-gated ion channels for applicationsVised Manuscript ReceiVed NoVember 6, 2006 ABSTRACT: Ion channels are gated by a variety of stimuli, including

Trauner, Dirk

130

Case Studies on Clock Gating and Local Routign for VLSI Clock Mesh  

E-Print Network [OSTI]

. This thesis deals with the introduction of 'reconfigurability' by using control structures like transmission gates between sub-clock meshes, thus enabling clock gating in clock mesh. By using the optimum value of size for PMOS and NMOS of transmission gate...

Ramakrishnan, Sundararajan

2010-10-12T23:59:59.000Z

131

Life cycle inventory for palm based plywood: A gate-to-gate case study  

Science Journals Connector (OSTI)

The oil palm industry heavily relies on the world market. It is essential to ensure that the oil palm industry is ready to meet the demands and expectation of these overseas customers on the environmental performance of the oil palm industry. Malaysia produces 13.9 million tons of oil palm biomass including oil palm trunk (OPT) frond and empty fruits bunches (EFB) annually. OPT felled in some oil palm plantations during replanting is transported to various industries and one such industry is the plywood factories. In order to gauge the environmental performance of the use of OPT as plywood a Life Cycle Assessment (LCA) study was conducted for palm based plywood. LCA is an important tool to assess the environmental performance of a product or process. Life cycle inventory (LCI) is the heart of a LCA study. This LCI study has a gate-to-gate system boundary and the functional unit is 1 m3 palm plywood produced and covers three types of plywood; Moisture Resistance Plywood (MR) Weather Boiling Proof Plywood Grade 1 (WBP Grade 1) at Factory D and Weather Boiling Proof Plywood Grade 2 (WBP Grade 2) at Factory E. Both factories use two different types of drying processes; conventional drying at Factory D and kiln drying at Factory E. This inventory data was collected from two factories (D and E) representing 40% of Malaysia palm plywood industry. The inputs are mainly the raw materials which are the oil palm trunks and tropical wood veneers and the energy from diesel and electricity from grid which is mainly used for the drying process. The other inputs include water urea formaldehyde phenol formaldehyde flour and melamine powder. The outputs are the biomass waste which consists of oil palm trunk off-cut and emission from boiler. Generally all types of plywood production use almost same materials and processing methods in different quantities. Due to the different process efficiency Factory D uses less input of raw materials and energy compared to Factory E.

Shamim Ahmad; Ismail Sahid; Vijaya Subramaniam; Halimah Muhamad; Anis Mokhtar

2013-01-01T23:59:59.000Z

132

TECH FORUM: [VERIFIED RTL TO GATES] Efficient RC power grid  

E-Print Network [OSTI]

TECH FORUM: [VERIFIED RTL TO GATES] Efficient RC power grid verification using node elimination proposes a novel approach to systematically reduce the power grid and accurately compute an upper bound on the voltage drops at power grid nodes that are retained. Furthermore, acriterion for the safety of nodes

Najm, Farid N.

133

Compressed sensing quantum process tomography for superconducting quantum gates  

E-Print Network [OSTI]

We apply the method of compressed sensing (CS) quantum process tomography (QPT) to characterize quantum gates based on superconducting Xmon and phase qubits. Using experimental data for a two-qubit controlled-Z gate, we obtain an estimate for the process matrix $\\chi$ with reasonably high fidelity compared to full QPT, but using a significantly reduced set of initial states and measurement configurations. We show that the CS method still works when the amount of used data is so small that the standard QPT would have an underdetermined system of equations. We also apply the CS method to the analysis of the three-qubit Toffoli gate with numerically added noise, and similarly show that the method works well for a substantially reduced set of data. For the CS calculations we use two different bases in which the process matrix $\\chi$ is approximately sparse, and show that the resulting estimates of the process matrices match each ther with reasonably high fidelity. For both two-qubit and three-qubit gates, we characterize the quantum process by not only its process matrix and fidelity, but also by the corresponding standard deviation, defined via variation of the state fidelity for different initial states.

Andrey V. Rodionov; Andrzej Veitia; R. Barends; J. Kelly; Daniel Sank; J. Wenner; John M. Martinis; Robert L. Kosut; Alexander N. Korotkov

2014-07-03T23:59:59.000Z

134

Quantification of Priority-OR gates in temporal fault trees  

Science Journals Connector (OSTI)

Fault Tree Analysis has been used in reliability engineering for many decades and has seen various modifications to enable it to analyse fault trees with dynamic and temporal gates so it can incorporate sequential failure in its analysis. Pandora is ... Keywords: Markov chains, Monte Carlo, Pandora, dynamic fault trees, fault trees, safety

Ernest Edifor; Martin Walker; Neil Gordon

2012-09-01T23:59:59.000Z

135

Quantum phase gate for optical qubits with cavity quantum optomechanics  

E-Print Network [OSTI]

We show that a cavity optomechanical system formed by a mechanical resonator simultaneously coupled to two modes of an optical cavity can be used for the implementation of quantum phase gate between optical qubits associated with the two intracavity modes. The scheme is realizable for sufficiently strong single-photon optomechanical coupling in the resolved sideband regime, and is robust against cavity losses.

Muhammad Asjad; Paolo Tombesi; David Vitali

2015-01-16T23:59:59.000Z

136

Design, Simulation and Modeling of Insulated Gate Bipolar Transistor  

E-Print Network [OSTI]

The market for Insulated Gate Bipolar Transistor (IGBT) is growing and there is a need for techniques to improve the design, modeling and simulation of IGBT. In this thesis, we first developed a new method to optimize the layout and dimensions...

Gupta, Kaustubh

2013-07-09T23:59:59.000Z

137

Advanced Gate Drive for the SNS High Voltage Converter Modulator  

SciTech Connect (OSTI)

SLAC National Accelerator Laboratory is developing a next generation H-bridge switch plate [1], a critical component of the SNS High Voltage Converter Modulator [2]. As part of that effort, a new IGBT gate driver has been developed. The drivers are an integral part of the switch plate, which are essential to ensuring fault-tolerant, high-performance operation of the modulator. The redesigned driver improves upon the existing gate drive in several ways. The new gate driver has improved fault detection and suppression capabilities; suppression of shoot-through and over-voltage conditions, monitoring of dI/dt and Vce(sat) for fast over-current detection and suppression, and redundant power isolation are some of the added features. In addition, triggering insertion delay is reduced by a factor of four compared to the existing driver. This paper details the design and performance of the new IGBT gate driver. A simplified schematic and description of the construction are included. The operation of the fast over-current detection circuits, active IGBT over-voltage protection circuit, shoot-through prevention circuitry, and control power isolation breakdown detection circuit are discussed.

Nguyen, M.N.; Burkhart, C.; Kemp, M.A.; /SLAC; Anderson, D.E.; /Oak Ridge

2009-05-07T23:59:59.000Z

138

Optical gating of perylene bisimide fluorescence using dithienylcyclopentene photochromic switches  

SciTech Connect (OSTI)

The emission of millions of fluorescence photons from a chromophore is controlled by the absorption of a few tens of photons in a photochromic molecule. The parameters that determine the efficiency of this process are investigated, providing insights for the development of an all-optical gate.

Pärs, Martti; Köhler, Jürgen, E-mail: juergen.koehler@uni-bayreuth.de [Experimental Physics IV, University of Bayreuth, 95440 Bayreuth (Germany)] [Experimental Physics IV, University of Bayreuth, 95440 Bayreuth (Germany); Gräf, Katja; Bauer, Peter; Thelakkat, Mukundan [Applied Functional Polymers, University of Bayreuth, 95440 Bayreuth (Germany)] [Applied Functional Polymers, University of Bayreuth, 95440 Bayreuth (Germany)

2013-11-25T23:59:59.000Z

139

Anti-coherence based molecular electronics: XOR-gate response  

E-Print Network [OSTI]

Anti-coherence based molecular electronics: XOR-gate response Roi Baera,*, Daniel Neuhauserb 90095-1569, USA Received 18 August 2001 Abstract We point out and simulate the possible utility of anti-coherence phase condition on the loop structure, the transfer would be anti- coherent. By applying one or two

Baer, Roi

140

Fabrication of gated nano electron source for vacuum nanoelectronics  

Science Journals Connector (OSTI)

Abstract Many kinds of attractive new applications, such as image sensors, stationary X-ray sources, and the column-less SEM, are investigated as post field emission displays that use a gated nano electron source. The fabrication of the gated nano electron source is overviewed from the conventional method to the latest one, especially in regarding to the gate formation process. Multi-stacked gate electrode formation using an etch-back method was developed recently, which is a very attractive method for generating a focused electron beam. The traditional Spindt-type emitter fabrication method is also being improved to the one that is easier and applicable to large area substrates. Using a double-layered photoresist as a lift-off layer and using HiPIMS sputtering instead of an e-beam evaporator was proposed. Thin film-type FEA fabrication is also improved to make vertically standing thin film by ion irradiation, which is applicable for making an emitter array on a large sized substrate.

Masayoshi Nagao; Tomoya Yoshida

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

SPACE BASED INTERCEPTOR SCALING  

SciTech Connect (OSTI)

Space Based Interceptor (SBI) have ranges that are adequate to address rogue ICBMs. They are not overly sensitive to 30-60 s delay times. Current technologies would support boost phase intercept with about 150 interceptors. Higher acceleration and velocity could reduce than number by about a factor of 3 at the cost of heavier and more expensive Kinetic Kill Vehicles (KKVs). 6g SBI would reduce optimal constellation costs by about 35%; 8g SBI would reduce them another 20%. Interceptor ranges fall rapidly with theater missile range. Constellations increase significantly for ranges under 3,000 km, even with advanced interceptor technology. For distributed launches, these estimates recover earlier strategic scalings, which demonstrate the improved absentee ratio for larger or multiple launch areas. Constellations increase with the number of missiles and the number of interceptors launched at each. The economic estimates above suggest that two SBI per missile with a modest midcourse underlay is appropriate. The SBI KKV technology would appear to be common for space- and surface-based boost phase systems, and could have synergisms with improved midcourse intercept and discrimination systems. While advanced technology could be helpful in reducing costs, particularly for short range theater missiles, current technology appears adequate for pressing rogue ICBM, accidental, and unauthorized launches.

G. CANAVAN

2001-02-01T23:59:59.000Z

142

Silicon-on-insulator-based high-voltage, high-temperature integrated circuit gate driver for silicon carbide-based power field effect transistors  

SciTech Connect (OSTI)

Silicon carbide (SiC)-based field effect transistors (FETs) are gaining popularity as switching elements in power electronic circuits designed for high-temperature environments like hybrid electric vehicle, aircraft, well logging, geothermal power generation etc. Like any other power switches, SiC-based power devices also need gate driver circuits to interface them with the logic units. The placement of the gate driver circuit next to the power switch is optimal for minimising system complexity. Successful operation of the gate driver circuit in a harsh environment, especially with minimal or no heat sink and without liquid cooling, can increase the power-to-volume ratio as well as the power-to-weight ratio for power conversion modules such as a DC-DC converter, inverter etc. A silicon-on-insulator (SOI)-based high-voltage, high-temperature integrated circuit (IC) gate driver for SiC power FETs has been designed and fabricated using a commercially available 0.8--m, 2-poly and 3-metal bipolar-complementary metal oxide semiconductor (CMOS)-double diffused metal oxide semiconductor (DMOS) process. The prototype circuit-s maximum gate drive supply can be 40-V with peak 2.3-A sourcing/sinking current driving capability. Owing to the wide driving range, this gate driver IC can be used to drive a wide variety of SiC FET switches (both normally OFF metal oxide semiconductor field effect transistor (MOSFET) and normally ON junction field effect transistor (JFET)). The switching frequency is 20-kHz and the duty cycle can be varied from 0 to 100-. The circuit has been successfully tested with SiC power MOSFETs and JFETs without any heat sink and cooling mechanism. During these tests, SiC switches were kept at room temperature and ambient temperature of the driver circuit was increased to 200-C. The circuit underwent numerous temperature cycles with negligible performance degradation.

Tolbert, Leon M [ORNL; Huque, Mohammad A [ORNL; Blalock, Benjamin J [ORNL; Islam, Syed K [ORNL

2010-01-01T23:59:59.000Z

143

Development of a Microchannel Plate-Based Gated X-ray Imager for Imaging and Spectroscopy Experiments on Z  

SciTech Connect (OSTI)

This poster describes a microchannelplate (MCP)–based, gated x-ray imager developed by National Security Technologies, LLC (NSTec), and Sandia National Laboratories(SNL) over the past several years. The camera consists of a 40 mm × 40 mm MCP, coated with eight 4 mm wide microstrips. The camera is gated by sending subnanosecond high-voltage pulses across the striplines. We have performed an extensive characterization of the camera, the results of which we present here. The camera has an optical gate profile width (time resolution) as narrow as 150 ps and detector uniformity of better than 30% along the length of a strip, far superior than what was achieved in previous designs. The spatial resolution is on the order of 40 microns for imaging applications and a dynamic range of between ~100 and ~1000. We also present results from a Monte Carlo simulation code developed by NSTec over the last several years. Agreement between the simulation results and the experimental measurements is very good.

Wu, M., Kruschwitz, C. A., Tibbitts, A., Rochau, G.

2011-06-24T23:59:59.000Z

144

Electron-beam patterning of polymer electrolyte films to make multiple nanoscale gates for nanowire transistors  

E-Print Network [OSTI]

We report an electron-beam based method for the nanoscale patterning of the poly(ethylene oxide)/LiClO$_{4}$ polymer electrolyte. We use the patterned polymer electrolyte as a high capacitance gate dielectric in single nanowire transistors and obtain subthreshold swings comparable to conventional metal/oxide wrap-gated nanowire transistors. Patterning eliminates gate/contact overlap which reduces parasitic effects and enables multiple, independently controllable gates. The method's simplicity broadens the scope for using polymer electrolyte gating in studies of nanowires and other nanoscale devices.

D. J. Carrad; A. M. Burke; R. W. Lyttleton; H. J. Joyce; H. H. Tan; C. Jagadish; K. Storm; H. Linke; L. Samuelson; A. P. Micolich

2014-04-08T23:59:59.000Z

145

Encapsulated gate-all-around InAs nanowire field-effect transistors  

SciTech Connect (OSTI)

We report the fabrication of lateral gate-all-around InAs nanowire field-effect transistors whose gate overlaps the source and drain electrodes and thus fully encapsulates the nanowire channel. They feature large drive current and transconductance that surpass those of conventional non-gate-overlap devices. The improved device characteristics can be attributed to the elimination of access resistance associated with ungated segments between the gate and source/drain electrodes. Our data also reveal a correlation between the normalized transconductance and the threshold voltage, which points to a beneficial effect of our wet-etching procedure performed prior to the atomic-layer-deposition of the gate dielectric.

Sasaki, Satoshi, E-mail: sasaki.s@lab.ntt.co.jp; Tateno, Kouta; Zhang, Guoqiang; Suominen, Henri; Harada, Yuichi; Saito, Shiro; Fujiwara, Akira; Sogawa, Tetsuomi; Muraki, Koji [NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)] [NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)

2013-11-18T23:59:59.000Z

146

Presented at the 2003 USSD Annual Lecture, Charleston, South Carolina. April 2003. SPILLWAY GATE RELIABILITY IN THE CONTEXT OF  

E-Print Network [OSTI]

and operations are listed and illustrated through their application to the Thames Flood Barrier gates

Bowles, David S.

147

Property:Wave Period Range(s) | Open Energy Information  

Open Energy Info (EERE)

Wave Period Range(s) Wave Period Range(s) Jump to: navigation, search Property Name Wave Period Range(s) Property Type String Pages using the property "Wave Period Range(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 0.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 2.1 + Alden Small Flume + 0.0 + Alden Wave Basin + 1.0 + B Breakwater Research Facility + 0.0 + C Carderock Maneuvering & Seakeeping Basin + 0.0 + Carderock Tow Tank 2 + 0.0 + Carderock Tow Tank 3 + 0.0 + Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 +

148

South Gate, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gate, California: Energy Resources Gate, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.954737°, -118.2120161° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.954737,"lon":-118.2120161,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

149

Ocean Gate, New Jersey: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gate, New Jersey: Energy Resources Gate, New Jersey: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 39.926785°, -74.1337496° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.926785,"lon":-74.1337496,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

150

Synthesis of Reversible Functions Beyond Gate Count and Quantum Cost  

E-Print Network [OSTI]

Many synthesis approaches for reversible and quantum logic have been proposed so far. However, most of them generate circuits with respect to simple metrics, i.e. gate count or quantum cost. On the other hand, to physically realize reversible and quantum hardware, additional constraints exist. In this paper, we describe cost metrics beyond gate count and quantum cost that should be considered while synthesizing reversible and quantum logic for the respective target technologies. We show that the evaluation of a synthesis approach may differ if additional costs are applied. In addition, a new cost metric, namely Nearest Neighbor Cost (NNC) which is imposed by realistic physical quantum architectures, is considered in detail. We discuss how existing synthesis flows can be extended to generate optimal circuits with respect to NNC while still keeping the quantum cost small.

Robert Wille; Mehdi Saeedi; Rolf Drechsler

2010-04-26T23:59:59.000Z

151

Animated Space  

E-Print Network [OSTI]

activists returning to the Square over thirty years to protest against diverse injustices, including mine closures, nuclear arms escalation, violence against women, Apartheid in South Africa, the war in Iraq and Afghanistan, repression in Palestine... movement, the protests in Southern Europe against austerity, the uprisings in Ukraine, the demonstrations against wasteful state expenditure in Brazil are the emblems of the new politics of insurgency; their rebellious public spaces tangible expression...

Amin, Ash

2014-01-01T23:59:59.000Z

152

APS Long Range Operations Schedule  

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

Shutdown Planning Shutdown Planning Planning Templates Shutdown Planning Schedules: Current Shutdown Schedule Archives: 2006 - 2013 APS Long-Range Operations Schedule: 2014 Archives: 2013 | 2012 2011 | 2010 | 2009 | 2008 2007 | 2006 | 2005 | 2004 2003 | 2002 | 2001 | 2000 1999 | 1998 | 1997 | 1996 APS Long-Range Operations Schedule (Fiscal Year 2014) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2013-3 2014-1 2014-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2

153

Use of a hard mask for formation of gate and dielectric via nanofilament field emission devices  

DOE Patents [OSTI]

A process for fabricating a nanofilament field emission device in which a via in a dielectric layer is self-aligned to gate metal via structure located on top of the dielectric layer. By the use of a hard mask layer located on top of the gate metal layer, inert to the etch chemistry for the gate metal layer, and in which a via is formed by the pattern from etched nuclear tracks in a trackable material, a via is formed by the hard mask will eliminate any erosion of the gate metal layer during the dielectric via etch. Also, the hard mask layer will protect the gate metal layer while the gate structure is etched back from the edge of the dielectric via, if such is desired. This method provides more tolerance for the electroplating of a nanofilament in the dielectric via and sharpening of the nanofilament.

Morse, Jeffrey D. (Martinez, CA); Contolini, Robert J. (Lake Oswego, OR)

2001-01-01T23:59:59.000Z

154

IPA Extensions Range: 025002AF  

E-Print Network [OSTI]

IPA Extensions Range: 0250­02AF This file contains an excerpt from the character code tables 0268IPA Extensions0250 025B LATIN SMALL LETTER OPEN E = LATIN SMALL LETTER EPSILON · lower-mid front

Erjavec, TomaÂ?

155

Fast and reliable automated ventriculography for gated blood-pool studies  

SciTech Connect (OSTI)

A set of algorithms, requiring only one single operator-interaction and minimal running time, has been generated to analyze left-ventricular function from cardiac gated Tc-99m Blood-pool Nuclear Medicine scintigrams (CBPS). The process depends mainly on an optimal edge enhancement filter derived in the frequency domain and applied to the study via FFT. The bandpass filter is based on Prolate Spheroidal wave functions and was described by Shanmugam et al in 1979. It maximizes output in the vicinity of edges, and is adapted here to enhance the ventricular region of interest (ROI) yielding images with sharp edges and good signal-to-noise ratio (SNR). This procedure does not require previous background subtraction from initial images in order to adequately define left-ventricular contours. A filter format has been chosen which will allow successful performance of the technique over a wide range of CBPS. The filtered image is then scanned and, on the original frame edges around ROI are marked and counts within ROI are defined. It will automatically run for any allowed number or size of frames. Processing time averages less than one minute when employing an Array Processor for a set of 32 64x64 pixel frames. Nuclear Medicine image processing applications of such filter have not been reported to date. This process has been tested on variable rate, variable ejection fraction, known volume Vanderbilt cardiac phantom; with maximum deviation of 3.5% and estimated standard deviation (SD) of 1.7%. When compared to other processes currently available, this technique is clearly more reliable due to its accuracy, speed and simplicity. It has also been used to determine ventricular volumes from gated SPECT images, with a respectable SD of 2.8%.

Lima, M.G.

1984-01-01T23:59:59.000Z

156

Geometric phase gate on an optical transition for ion trap quantum computation  

Science Journals Connector (OSTI)

We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric dipole transitions, the gate has many interesting properties, such as very low spontaneous emission rates, applicability to magnetic field insensitive states, and use of a co-propagating laser beam geometry. We estimate that current technology allows for infidelities of around 10?4.

K. Kim; C. F. Roos; L. Aolita; H. Häffner; V. Nebendahl; R. Blatt

2008-05-08T23:59:59.000Z

157

Geometric phase gate on an optical transition for ion trap quantum computation  

E-Print Network [OSTI]

We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric dipole transitions, the gate has many interesting properties, such as very low spontaneous emission rates, applicability to magnetic field insensitive states, and use of a co-propagating laser beam geometry. We estimate that current technology allows for infidelities of around 10$^{-4}$.

K. Kim; C. F. Roos; L. Aolita; H. Haeffner; V. Nebendahl; R. Blatt

2007-10-21T23:59:59.000Z

158

Increase of the reliability and cost effectiveness of the Leningrad flood control gates  

SciTech Connect (OSTI)

This paper presents the results of a detailed analysis of competing designs of rolling gates and floating radial gates for the Leningrad flood control system and describes from a hydraulic engineering standpoint those aspects of the gate designs which led to the conclusion that they did not have sufficient reliability for the loads encountered under flood conditions. Specific design revisions which take into account not only the flood loads but also the navigation and dock parts of the structures were investigated and recommended.

Khlopenkov, P.R.

1988-06-01T23:59:59.000Z

159

Micromachined Bradbury-Nielsen Gates Ignacio A. Zuleta, Griffin K. Barbula, Matthew D. Robbins, Oh Kyu Yoon, and Richard N. Zare*  

E-Print Network [OSTI]

Micromachined Bradbury-Nielsen Gates Ignacio A. Zuleta, Griffin K. Barbula, Matthew D. Robbins, Oh 94305-5080 Bradbury-Nielsen gates (BNGs) are a standard way for gating or steering beams of charged for axial gating of an ion beam is referred to as a Bradbury-Nielsen gate (BNG).6 Depending on the kinetic

Zare, Richard N.

160

Comment on “Zero-range potentials for Dirac particles: Scattering and related continuum problems”  

Science Journals Connector (OSTI)

In a recent paper, Szmytkowski proposed zero-range potentials for Dirac particles in three space dimensions. On the other hand, there is a theorem, proved by Svendsen a long time ago, which implies that zero-range potentials cannot be defined for the Dirac equation in two and three space dimensions. We discuss a difficulty that underlies Szmytkowski’s approach.

F. A. B. Coutinho and Y. Nogami

2006-02-10T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

A Comparison of Amplitude-Based and Phase-Based Positron Emission Tomography Gating Algorithms for Segmentation of Internal Target Volumes of Tumors Subject to Respiratory Motion  

SciTech Connect (OSTI)

Purpose: To quantitatively compare the accuracy of tumor volume segmentation in amplitude-based and phase-based respiratory gating algorithms in respiratory-correlated positron emission tomography (PET). Methods and Materials: List-mode fluorodeoxyglucose-PET data was acquired for 10 patients with a total of 12 fluorodeoxyglucose-avid tumors and 9 lymph nodes. Additionally, a phantom experiment was performed in which 4 plastic butyrate spheres with inner diameters ranging from 1 to 4 cm were imaged as they underwent 1-dimensional motion based on 2 measured patient breathing trajectories. PET list-mode data were gated into 8 bins using 2 amplitude-based (equal amplitude bins [A1] and equal counts per bin [A2]) and 2 temporal phase-based gating algorithms. Gated images were segmented using a commercially available gradient-based technique and a fixed 40% threshold of maximum uptake. Internal target volumes (ITVs) were generated by taking the union of all 8 contours per gated image. Segmented phantom ITVs were compared with their respective ground-truth ITVs, defined as the volume subtended by the tumor model positions covering 99% of breathing amplitude. Superior-inferior distances between sphere centroids in the end-inhale and end-exhale phases were also calculated. Results: Tumor ITVs from amplitude-based methods were significantly larger than those from temporal-based techniques (P=.002). For lymph nodes, A2 resulted in ITVs that were significantly larger than either of the temporal-based techniques (P<.0323). A1 produced the largest and most accurate ITVs for spheres with diameters of ?2 cm (P=.002). No significant difference was shown between algorithms in the 1-cm sphere data set. For phantom spheres, amplitude-based methods recovered an average of 9.5% more motion displacement than temporal-based methods under regular breathing conditions and an average of 45.7% more in the presence of baseline drift (P<.001). Conclusions: Target volumes in images generated from amplitude-based gating are larger and more accurate, at levels that are potentially clinically significant, compared with those from temporal phase-based gating.

Jani, Shyam S., E-mail: sjani@mednet.ucla.edu [Department of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, California (United States); Robinson, Clifford G. [Department of Radiation Oncology, Siteman Cancer Center, Washington University in St Louis, St Louis, Missouri (United States); Dahlbom, Magnus [Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California (United States); White, Benjamin M.; Thomas, David H.; Gaudio, Sergio; Low, Daniel A.; Lamb, James M. [Department of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, California (United States)

2013-11-01T23:59:59.000Z

162

Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology Landscape  

Broader source: Energy.gov [DOE]

Bill Gates and Deputy Secretary of Energy Daniel Poneman discuss the future of energy technology during the twenty-second Plenary Meeting of the Nuclear Suppliers Group.

163

Reversible Switching of an Optical Gate Using Phase-Change Material and Si Waveguide  

Science Journals Connector (OSTI)

Optical gate switch that uses Ge2Sb2Te5phase-change material was fabricated and the reversible switching has been...

Ikuma, Yuichiro; Shoji, Yuya; Kuwahara, Masashi; Wang, Xiaomin; Kintaka, Kenji; Kawashima, Hitoshi; Tanaka, Daiki; Tsuda, Hiroyuki

164

Development of a time-gated system for Raman spectroscopy of biological samples  

Science Journals Connector (OSTI)

A time gating system has been constructed that is capable of recording high quality Raman spectra of highly fluorescing biological samples while operating below the photodamage...

Knorr, Florian; Smith, Zachary J; Wachsmann-Hogiu, Sebastian

2010-01-01T23:59:59.000Z

165

Locally observable conditions for the successful implementation of entangling multi-qubit quantum gates  

E-Print Network [OSTI]

The information obtained from the operation of a quantum gate on only two complementary sets of input states is sufficient to estimate the quantum process fidelity of the gate. In the case of entangling gates, these conditions can be used to predict the multi qubit entanglement capability from the fidelities of two non-entangling local operations. It is then possible to predict highly non-classical features of the gate such as violations of local realism from the fidelities of two completely classical input-output relations, without generating any actual entanglement.

Holger F. Hofmann; Ryo Okamoto; Shigeki Takeuchi

2005-09-01T23:59:59.000Z

166

Synthesis of Reversible Functions Using Various Gate Libraries and Design Specifications.  

E-Print Network [OSTI]

?? This dissertation is devoted to efficient automated logic synthesis of reversible circuits using various gate types and initial specifications. These Reversible circuits are of… (more)

Alhagi, Nouraddin

2010-01-01T23:59:59.000Z

167

Coherence-Controlled Holographic Microscopy for Coherence-Gated Quantitative Phase Imaging  

Science Journals Connector (OSTI)

We show that the use of incoherent illumination in coherence-controlled holographic microscopy (CCHM) enables coherence-gated quantitative phase imaging of objects through turbid...

Slaby, Tomas; Kolman, Pavel; Dostal, Zbynek; Antos, Martin; Lostak, Martin; Krizova, Aneta; Collakova, Jana; Kollarova, Vera; Slaba, Michala; Vesely, Pavel; Chmelik, Radim

168

Rapid optimization of working parameters of microwave-driven multilevel qubits for minimal gate leakage  

E-Print Network [OSTI]

.0134 is the interaction between the qubits, .0020 .0136 M=L is the coupling constant, and x i , x ei , and h.0133x i .0134 (i .0136 1 and 2) are the canonical coordinate, normal- ized external flux, and Hamiltonian of the ith single qubit. Note... for the gate at the point B. The quality of a gate can be described by gate fidelity F .0017 Trace.0137.0026 P .0026 I .0138, where .0026 P and.0026 I are the physical and ideal density matrices after gate operation and the overline denotes averaging over all...

Zhou, Zhongyuan; Han, Siyuan; Chu, Shih-I

2005-09-16T23:59:59.000Z

169

E-Print Network 3.0 - affects voltage-gated calcium Sample Search...  

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

modulate neuronal voltage-gated calcium cur- rents, we performed a whole-cell patch... that hippocampal neurons in an astrocyte-enriched environment show augmentation of...

170

Use of high-level design information for enabling automation of fine-grained power gating  

E-Print Network [OSTI]

Leakage power reduction through power gating requires considerable design and verification effort. Conventionally, extensive analysis is required for dividing a heterogeneous design into power domains and generating control ...

Agarwal, Abhinav

2014-01-01T23:59:59.000Z

171

2006 long range development plan  

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

draft draft university of california berkeley lab  Draft 2-5-06 1 2 3 background the plan the vision laboratory location 10 berkeley laboratory historical perspective 14 berkeley lab 2006 20 Facilities conditions 24 the scientific vision for berkeley lab 30 space and population projections 34 the site and Facilities vision 38 introduction to the plan 44 land use 46 development Framework 56 vehicle access, circulation, and parking 62 pedestrian circulation 70 open space and landscape 74 utilities and infrastructure 82 introduction director's ForeWord contents 2 4 appendices appendix a: Main site building inventory 88 appendix b: land leases 94 appendix c: Figures and tables 96 appendix d: related documents 99 appendix e: abbreviations and definitions 100 appendix F: berkeley lab organization 102

172

SiC Power MOSFET with Improved Gate Dielectric  

SciTech Connect (OSTI)

In this STTR program, Structured Materials Industries (SMI), and Cornell University are developing novel gate oxide technology, as a critical enabler for silicon carbide (SiC) devices. SiC is a wide bandgap semiconductor material, with many unique properties. SiC devices are ideally suited for high-power, highvoltage, high-frequency, high-temperature and radiation resistant applications. The DOE has expressed interest in developing SiC devices for use in extreme environments, in high energy physics applications and in power generation. The development of transistors based on the Metal Oxide Semiconductor Field Effect Transistor (MOSFET) structure will be critical to these applications.

Sbrockey, Nick M; Tompa, Gary S; Spencer, Michael G; Chandrashekhar, Chandra MVS

2010-08-23T23:59:59.000Z

173

Alternative Gate Dielectrics on Semiconductors for MOSFET Device Applications  

SciTech Connect (OSTI)

We have investigated the synthesis and properties of deposited oxides on Si and Ge for use as alternative gate dielectrics in MOSFET applications. The capacitance and leakage current behavior of polycrystalline Y{sub 2}O{sub 3} films synthesized by pulsed-laser deposition is reported. In addition, we also discuss the growth of epitaxial oxide structures. In particular, we have investigated the use of silicide termination for oxide growth on (001) Si using laser-molecular beam epitaxy. In addition, we discuss a novel approach involving the use of hydrogen to eliminate native oxide during initial dielectric oxide nucleation on (001) Ge.

Norton, D.P.; Budai, J.D.; Chisholm, M.F.; Pennycook, S.J.; McKee, R.; Walker, F.; Lee, Y.; Park, C.

1999-12-06T23:59:59.000Z

174

Three-qubit phase gate based on cavity quantum electrodynamics  

E-Print Network [OSTI]

- mentation, such as linear ion traps #4;1#5;, liquid-state nuclear magnetic resonance #1;NMR#2; #4;2#5;, and cavity QED systems #4;3,4#5;. There are three requirements for implementing a quantum computer: Efficient manipulation and read out of an indi.... #4;6#5;, a scheme to implement a two-qubit quantum phase gate and one-qubit unitary operation implementation based on cavity QED was described. They choose the Fock states #6;0#7; and #6;1#7; of a high Q cavity mode as the two logical states of a...

Chang, Jun-Tao; Zubairy, M. Suhail

2008-01-01T23:59:59.000Z

175

Photo of the Week: Supercomputing... from Space | Department of Energy  

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

Supercomputing... from Space Supercomputing... from Space Photo of the Week: Supercomputing... from Space June 27, 2013 - 1:46pm Addthis The Cibola Flight Experiment (CFE) is an experimental small satellite that was designed to prove that off-the-shelf computer processors can be used for supercomputing in space. The processors, also called field-programmable gate arrays, can be reconfigured while the satellite is in orbit, enabling researchers to modify them for a variety of tasks like studying lightning, disturbances in the ionosphere, and radio-frequency sources. The CFE satellite was launched on March 8, 2007, in low-earth orbit, and has operated successfully since its deployment. In this 2006 photo, Los Alamos National Laboratory scientist Daniel Seitz works on preparing the CFE satellite. | Photo by LeRoy Sanchez, Los Alamos National Laboratory.

176

Small Space Heater Basics | Department of Energy  

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

Small Space Heater Basics Small Space Heater Basics Small Space Heater Basics August 19, 2013 - 10:38am Addthis Small space heaters, also called portable heaters, are typically used when the main heating system is inadequate or when central heating is too costly to install or operate. Space heater capacities generally range between 10,000 Btu to 40,000 Btu per hour. Common fuels used for this purpose are electricity, propane, natural gas, and kerosene. Although most space heaters rely on convection (the circulation of air in a room), some rely on radiant heating; that is, they emit infrared radiation that directly heats up objects and people that are within their line of sight. Combustion Space Heaters Space heaters are classified as vented and unvented, or "vent free." Unvented combustion units are not recommended for inside use, as they

177

Range Condition: Key to Sustained Ranch Productivity  

E-Print Network [OSTI]

Range condition, or a rangeland's "state of health," is an ecological measurement of the current condition of a range. Range condition is evaluated by the plant species composition. This leaflet explains the importance of range condition, how range...

McGinty, Allan; White, Larry D.

2000-04-25T23:59:59.000Z

178

PACIFIC SOUTHWEST Forest and Range  

E-Print Network [OSTI]

Donald, Philip M. 1973. Cutting a young-growth, mixed-conifer stand to California Forest Practice Act StandardsPACIFIC SOUTHWEST Forest and Range Experiment Station FOREST SERVICE U. S. DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 Cutting a Young-Growth, Mixed-Conifer Stand to California

Standiford, Richard B.

179

PACIFIC SOUTHWEST Forest and Range  

E-Print Network [OSTI]

C. Hathaway, both of the Black Hills National Forest, Custer, South Dakota, provided the necessaryPACIFIC SOUTHWEST Forest and Range FOREST SERVICE U. S.DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 Experiment Station USDA FOREST SERVICE RESEARCH PAPER PSW- 96 /1973 #12;CONTENTS

Standiford, Richard B.

180

Directions to USC, Gate 6 (Parking Structure A) 110 (Harbor Freeway) North  

E-Print Network [OSTI]

on Vermont Avenue Turn right at 36th Place/Downey Way and enter USC at Gate 6 5 (Golden State/Santa AnaDirections to USC, Gate 6 (Parking Structure A) 110 (Harbor Freeway) North Take the Exposition Boulevard exit Go straight through the 37th Street light. Keep left Go under the freeway bridge and across

Valero-Cuevas, Francisco

Note: This page contains sample records for the topic "range gate spacing" 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

Electrochemical gating of individual single-wall carbon nanotubes observed by electron transport measurements and resonant  

E-Print Network [OSTI]

, the Fermi energy of a nanotube can be changed, as ions from the solution accu- mulate on the surface gating of nanotubes has been shown previously to effectively shift the Fermi energy of semiconducting with the laser energy, we can observe the Raman spectrum from a single SWNT.7 Electrochemical gating of nanotubes

182

New Silicon Carbide Schottky-gate Bipolar Mode Field Effect Transistor (SiC SBMFET)  

E-Print Network [OSTI]

New Silicon Carbide Schottky-gate Bipolar Mode Field Effect Transistor (SiC SBMFET) without PN. In this paper, we propose a novel Schottky-gate BMFET (SBMFET) using P- type 4H Silicon-Carbide 13,41, a wide, Silicon Carbide, Field effect transistor, Simulation. I. INTRODUCTION TH E BMFET operates in bipolar mode

Kumar, M. Jagadesh

183

Impact of tide gates on the migration of juvenile sea trout, Salmo trutta  

Science Journals Connector (OSTI)

Abstract As part of flood protection and land reclamation schemes, tide gates allow rivers to discharge to sea when open, and prevent salt water intrusion when closed. Their impact on diadromous fish migration between essential spawning and rearing habitats, and the effectiveness of mitigation measures, have received little consideration. The River Meon, UK, discharges to sea through four top-hung counterbalanced tide gates. In March 2012, the gates were replaced with new ones of the same design, but with an orifice installed in two of them partly to improve fish passage. Sixty downstream migrating juvenile sea trout, Salmo trutta, were trapped approximately 4.9 km upstream of the tidal limit and tagged with acoustic transmitters in April 2011 (n = 30) and 2012 (n = 30). Tagged individuals were detected by acoustic receivers placed near the tide gates before (year 1) and after (year 2) orifice installation. Of the fish that approached the tide gates, 95.8% and 100.0% successfully passed in years 1 and 2, respectively. The speed of migration at the gates was slower than for upstream and downstream reaches, and was positively related to percentage of time the gates were open. Presence of the orifices did not influence delay. Overall, top-hung tide gates delayed sea trout migration, potentially increasing the risk of predation and energy expenditure during the vulnerable juvenile life stage.

G.V. Wright; R.M. Wright; P.S. Kemp

2014-01-01T23:59:59.000Z

184

Coherent molecular transistor: Control through variation of the gate wave function  

SciTech Connect (OSTI)

In quantum interference transistors (QUITs), the current through the device is controlled by variation of the gate component of the wave function that interferes with the wave function component joining the source and the sink. Initially, mesoscopic QUITs have been studied and more recently, QUITs at the molecular scale have been proposed and implemented. Typically, in these devices the gate lead is subjected to externally adjustable physical parameters that permit interference control through modifications of the gate wave function. Here, we present an alternative model of a molecular QUIT in which the gate wave function is directly considered as a variable and the transistor operation is discussed in terms of this variable. This implies that we specify the gate current as well as the phase of the gate wave function component and calculate the resulting current through the source-sink channel. Thus, we extend on prior works that focus on the phase of the gate wave function component as a control parameter while having zero or certain discrete values of the current. We address a large class of systems, including finite graphene flakes, and obtain analytic solutions for how the gate wave function controls the transistor.

Ernzerhof, Matthias, E-mail: Matthias.Ernzerhof@UMontreal.ca [Département de Chimie, Université de Montréal, C.P. 6128 Succursale A, Montréal, Quebec H3C 3J7 (Canada)] [Département de Chimie, Université de Montréal, C.P. 6128 Succursale A, Montréal, Quebec H3C 3J7 (Canada)

2014-03-21T23:59:59.000Z

185

Ambipolar silicon nanowire FETs with stenciled-deposited metal gate Davide Sacchetto  

E-Print Network [OSTI]

Ambipolar silicon nanowire FETs with stenciled-deposited metal gate Davide Sacchetto , Veronica Keywords: Schottky barrier Ambipolarity Si nanowire Stencil lithography FET Silicide a b s t r a c t We chemical vapor deposition (LPCVD) of amorphous Si (a-Si) and SiO2 layers as well as metal gate patterning

De Micheli, Giovanni

186

Surface application of molybdenum silicide onto gated poly-Si emitters for enhanced field emission performance  

E-Print Network [OSTI]

the merits of molybdenum Mo silicide formation on gated polycrystalline silicon poly-Si field emitters. Metal, any metal silicide can be adopted without reSurface application of molybdenum silicide onto gated poly-Si emitters for enhanced field emission

Lee, Jong Duk

187

Nanocrystals Embedded Zirconium-doped Hafnium Oxide High-k Gate Dielectric Films  

E-Print Network [OSTI]

nanoparticles. These results can be important to the novel metal gate/high-k/Si MOS structure. The Ru-modified ZrHfO gate dielectric film showed a large breakdown voltage and a long lifetime. The conventional polycrystalline Si (poly-Si) charge trapping layer...

Lin, Chen-Han

2012-10-19T23:59:59.000Z

188

Optimal Control of Airport Operations with Gate Capacity Constraints Harshad Khadilkar and Hamsa Balakrishnan  

E-Print Network [OSTI]

at Boston's Logan International Airport in the US are used to illustrate the advantages of the proposed for Boston Logan International Airport (BOS) is shown in Fig. 1. Gates at each of the four main terminalsOptimal Control of Airport Operations with Gate Capacity Constraints Harshad Khadilkar and Hamsa

Gummadi, Ramakrishna

189

Gate-modulated thermoelectric conversion in disordered nanowires: I. Low temperature coherent regime  

E-Print Network [OSTI]

Gate-modulated thermoelectric conversion in disordered nanowires: I. Low temperature coherent of a disordered nanowire in the presence of an external gate electrode which can be used for depleting the carrier and Gardner for describing the energy dependence of the localization length around the band edges allowing us

Recanati, Catherine

190

Graphene field-effect transistors based on boron nitride gate dielectrics Inanc Meric1  

E-Print Network [OSTI]

Graphene field-effect transistors based on boron nitride gate dielectrics Inanc Meric1 , Cory Dean1, 10027 Tel: (212) 854-2529, Fax: (212) 932-9421, Email: shepard@ee.columbia.edu Abstract Graphene field of graphene, as the gate dielectric. The devices ex- hibit mobility values exceeding 10,000 cm2 /V

Shepard, Kenneth

191

Microfluidic logic gates and timers{ Michael W. Toepke, Vinay V. Abhyankar and David J. Beebe*  

E-Print Network [OSTI]

Microfluidic logic gates and timers{ Michael W. Toepke, Vinay V. Abhyankar and David J. Beebe to create a number of microfluidic analogs to electronic circuit components. Three classes of components are demonstrated: (1) OR/AND, NOR/NAND, and XNOR digital microfluidic logic gates; (2) programmable, autonomous

Beebe, David J.

192

Asynchronous Gate-Diffusion----Input (GDI) Circuits Arkadiy Morgenshtein, Michael Moreinis and Ran Ginosar  

E-Print Network [OSTI]

1 Asynchronous Gate-Diffusion----Input (GDI) Circuits Arkadiy Morgenshtein, Michael Moreinis, Israel [ran@ee.technion.ac.il] Abstract: Novel Gate-Diffusion Input (GDI) circuits are applied to asynchronous design. A variety of GDI implementations are compared with typical CMOS asynchronous circuits

Ginosar, Ran

193

Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate driver chip  

E-Print Network [OSTI]

Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate transformer integrated in a CMOS silicon die together with the gate driver and other required functions frequency through the coreless transformer. The chosen design methodology will be explained and experimental

Paris-Sud XI, Université de

194

Range Fuels | Open Energy Information  

Open Energy Info (EERE)

Fuels Fuels Jump to: navigation, search Logo: Range Fuels Name Range Fuels Address 11101 W. 120th Avenue Place Broomfield, Colorado Zip 80021 Sector Biomass Product Uses a thermochemical process to turn biomass into synthetic gas and then fuel Website http://www.rangefuels.com/ Coordinates 39.915572°, -105.122053° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.915572,"lon":-105.122053,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

195

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

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

MedGate Occupational MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) More Documents & Publications PIA - Savannah River Nuclear Solution (SRNS) Procurement Cycle System (PCS) PIA - Savannah River Nuclear Solutions (SRNS) Human Resource Management

196

Optimal control for fast and high-fidelity quantum gates in coupled superconducting flux qubits  

E-Print Network [OSTI]

We apply the quantum optimal control theory based on the Krotov method to implement single-qubit $X$ and $Z$ gates and two-qubit CNOT gates for inductively coupled superconducting flux qubits with fixed qubit transition frequencies and fixed off-diagonal qubit-qubit coupling. Our scheme that shares the same advantage of other directly coupling schemes requires no additional coupler subcircuit and control lines. The control lines needed are only for the manipulation of individual qubits (e.g., a time-dependent magnetic flux or field applied on each qubit). The qubits are operated at the optimal coherence points and the gate operation times (single-qubit gates $magnetic-field-induced single-qubit interactions and two-qubit couplings. The effect of leakage to higher energy-level states and the effect of qubit decoherence on the quantum gate operations are also discussed.

Shang-Yu Huang; Hsi-Sheng Goan

2014-06-30T23:59:59.000Z

197

APS Long Range Operations Schedule  

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

2) 2) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2011-3 2012-1 2012-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

198

APS Long Range Operations Schedule  

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

1) 1) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2010-3 2011-1 2011-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

199

APS Long Range Operations Schedule  

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

3) 3) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2012-3 2013-1 2013-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

200

Normal Growth of Range Cattle.  

E-Print Network [OSTI]

TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR College Station, Brazos County, Texas BULLETIN NO. 409 MARCH, 1930 DIVISION OF RANGE ANIMAL HUSBANDRY - Lr9RARv' *n+!nmt">3~roql f', 44+lpl,9-' . 16' , ,, ..!c?! cq!!f?~c nt... of these special problems, the Texas Station presents in this Bulletin a study of the growth in weight and in measurements which actually took place in the calves born during nine years at Substation No. 14, the Ranch Experiment Station. This study so far has...

Lush, Jay L. (Jay Laurence)

1930-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

The home-range concept: are traditional estimators still relevant with modern  

E-Print Network [OSTI]

The home-range concept: are traditional estimators still relevant with modern telemetry technology by the development of new methods of data analysis for portraying space use, home ranges and utilization generalized regression models for habitat use. In addition, mechanistic home-range models, derived from models

Mitchell, Mike

202

The Wide Angular-Range Chopper Spectrometer at SNS | ORNL Neutron Sciences  

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

The Wide Angular-Range Chopper Spectrometer at SNS The Wide Angular-Range Chopper Spectrometer at SNS and Doug Abernathy at ARCS Materials researcher Judy Pang and instrument scientist Doug Abernathy at ARCS. ARCS is optimized to provide a high neutron flux at the sample and a large solid angle of detector coverage. This spectrometer is capable of selecting incident energies over the full energy spectrum of neutrons, making it useful for studies of excitations from a few to several hundred milli-electron volts. An elliptically shaped supermirror guide in the incident flight path boosts the performance at the lower end of this range. The sample and detector vacuum chambers provide a window-free final flight path and incorporate a large gate valve to allow rapid sample changeout. A T0 neutron chopper not only blocks the prompt radiation from the source

203

Live Fire Range Environmental Assessment  

SciTech Connect (OSTI)

The Central Training Academy (CTA) is a DOE Headquarters Organization located in Albuquerque, New Mexico, with the mission to effectively and efficiently educate and train personnel involved in the protection of vital national security interests of DOE. The CTA Live Fire Range (LFR), where most of the firearms and tactical training occurs, is a complex separate from the main campus. The purpose of the proposed action is to expand the LFR to allow more options of implementing required training. The Department of Energy has prepared this Environmental Assessment (EA) for the proposed construction and operation of an expanded Live Fire Range Facility at the Central Training Academy in Albuquerque, New Mexico. Based on the analysis in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an environmental impact statement is not required and DOE is issuing this Finding of No Significant Impact (FONSI).

None

1993-08-01T23:59:59.000Z

204

Examination of geometric and dosimetric accuracies of gated step-and-shoot intensity modulated radiation therapy  

SciTech Connect (OSTI)

Due to the complicated technical nature of gated radiation therapy, electronic and mechanical limitations may affect the precision of delivery. The purpose of this study is to investigate the geometric and dosimetric accuracies of gated step-and-shoot intensity modulated radiation treatments (SS-IMRT). Unique segmental MLC plans are designed, which allow quantitative testing of the gating process. Both ungated and gated deliveries are investigated for different dose sizes, dose rates, and gating window times using a commercial treatment system (Varian Trilogy) together with a respiratory gating system [Varian Real-Time Position Management system]. Radiographic film measurements are used to study the geometric accuracy, where it is found that with both ungated and gated SS-IMRT deliveries the MLC leaf divergence away from planned is less than or equal to the MLC specified leaf tolerance value for all leafs (leaf tolerance being settable from 0.5-5 mm). Nevertheless, due to the MLC controller design, failure to define a specific leaf tolerance value suitable to the SS-IMRT plan can lead to undesired geometric effects, such as leaf motion of up to the maximum 5 mm leaf tolerance value occurring after the beam is turned on. In this case, gating may be advantageous over the ungated case, as it allows more time for the MLC to reach the intended leaf configuration. The dosimetric precision of gated SS-IMRT is investigated using ionization chamber methods. Compared with the ungated case, it is found that gating generally leads to increased dosimetric errors due to the interruption of the 'overshoot phenomena.' With gating the average timing deviation for intermediate segments is found to be 27 ms, compared to 18 ms for the ungated case. For a plan delivered at 600 MU/min this would correspond to an average segment dose error of {approx}0.27 MU and {approx}0.18 MU for gated and ungated deliveries, respectively. The maximum dosimetric errors for individual intermediate segments are found to deviate by up to {approx}0.64 MU from their planned value when delivered at 600 MU/min using gating, this compares to only {approx}0.32 MU for the ungated case.

Wiersma, R. D.; Xing, L. [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305-5847 (United States)

2007-10-15T23:59:59.000Z

205

Multimedia Phase-Spaces  

Science Journals Connector (OSTI)

Dynamic phase-spaces are suggested as a way of designing and implementing interactive multimedia systems. A dynamic phase-space is a space of properties overlayed with dynamics. The space is “decorated” with multimedia resources such ... Keywords: catastrophe theory, dynamics, installation, interactive narrative, museums, phase-space

Peter Bøgh Andersen

1998-05-01T23:59:59.000Z

206

Sculpting space through sound  

E-Print Network [OSTI]

How does one experience space? What kind of information do humans collect in the process of constructing space in their mind? How does one begin to understand volume, light, texture, material, smell and sense of space? The ...

Nakagawa, Junko, 1975-

2002-01-01T23:59:59.000Z

207

Stripline microchannel plate image intensifier tubes (MCPTS) for nanosecond optical gating applications  

SciTech Connect (OSTI)

Shuttering characteristics of low impedance stripline geometry microchannel plate image intensifier tubes (MCPTs) with 50% transmissive nickel undercoated S-20 photocathodes are discussed. Iris-free shutter sequences with 50 to 75 micron resolution at optical gate times of 500ps to 2ns were measured for typical samples from two manufacturers. Shutter sequences clearly showing gate pulse propagation velocities for this MCPT design when externally driven by impedance matched circuitry are contrasted with non-directional sequences obtained from unmatched coupling of the gate pulse. 7 refs., 7 figs.

Yates, G.J.; Jaramillo, S.A.; Zagarino, P.; Thomas, M.

1986-01-01T23:59:59.000Z

208

Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene  

E-Print Network [OSTI]

Here we report the fabrication and quantum transport measurements of gates controlled parallel-coupled double quantum dot on both bilayer and single layer graphene. It is shown that the interdot coupling strength of the parallel double dots can be effectively tuned from weak to strong regime by both the in-plane plunger gates and back gate. All the relevant energy scales and parameters of the graphene parallel-coupled double dot can be extracted from the honeycomb charge stability diagrams revealed through the transport measurements.

Lin-Jun Wang; Guo-Ping Guo; Da Wei; Gang Cao; Tao Tu; Ming Xiao; Guang-Can Guo; A. M. Chang

2011-04-22T23:59:59.000Z

209

Integrating respiratory gating into a megavoltage cone-beam CT system  

SciTech Connect (OSTI)

We have previously described a low-dose megavoltage cone beam computed tomography (MV CBCT) system capable of producing projection image using one beam pulse. In this study, we report on its integration with respiratory gating for gated radiotherapy. The respiratory gating system tracks a reflective marker on the patient's abdomen midway between the xiphoid and umbilicus, and disables radiation delivery when the marker position is outside predefined thresholds. We investigate two strategies for acquiring gated scans. In the continuous rotation-gated acquisition, the linear accelerator (LINAC) is set to the fixed x-ray mode and the gantry makes a 5 min, 360 deg.continuous rotation, during which the gating system turns the radiation beam on and off, resulting in projection images with an uneven distribution of projection angles (e.g., in 70 arcs each covering 2 deg.). In the gated rotation-continuous acquisition, the LINAC is set to the dynamic arc mode, which suspends the gantry rotation when the gating system inhibits the beam, leading to a slightly longer (6-7 min) scan time, but yielding projection images with more evenly distributed projection angles (e.g., {approx}0.8 deg.between two consecutive projection angles). We have tested both data acquisition schemes on stationary (a contrast detail and a thoracic) phantoms and protocol lung patients. For stationary phantoms, a separate motion phantom not visible in the images is used to trigger the RPM system. Frame rate is adjusted so that approximately 450 images (13 MU) are acquired for each scan and three-dimensional tomographic images reconstructed using a Feldkamp filtered backprojection algorithm. The gated rotation-continuous acquisition yield reconstructions free of breathing artifacts. The tumor in parenchymal lung and normal tissues are easily discernible and the boundary between the diaphragm and the lung sharply defined. Contrast-to-noise ratio (CNR) is not degraded relative to nongated scans of stationary phantoms. The continuous rotation-gated acquisition scan also yields tomographic images with discernible anatomic features; however, streak artifacts are observed and CNR is reduced by approximately a factor of 4. In conclusion, we have successfully developed a gated MV CBCT system to verify the patient positioning for gated radiotherapy.

Chang Jenghwa; Sillanpaa, Jussi; Ling, Clifton C.; Seppi, Edward; Yorke, Ellen; Mageras, Gikas; Amols, Howard [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York 10021 (United States); Ginzton Technology Center, Varian Medical Systems, Mountain View, California 94043 (United States); Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York 10021 (United States)

2006-07-15T23:59:59.000Z

210

Demonstration of a fully tuneable entangling gate for continuous-variable one-way quantum computation  

E-Print Network [OSTI]

We introduce a fully tuneable entangling gate for continuous-variable one-way quantum computation. We present a proof-of-principle demonstration by propagating two independent optical inputs through a three-mode linear cluster state and applying the gate in various regimes. The genuine quantum nature of the gate is confirmed by verifying the entanglement strength in the output state. Our protocol can be readily incorporated into efficient multi-mode interaction operations in the context of large-scale one-way quantum computation, as our tuning process is the generalisation of cluster state shaping.

Shota Yokoyama; Ryuji Ukai; Seiji C. Armstrong; Jun-ichi Yoshikawa; Peter van Loock; Akira Furusawa

2014-10-02T23:59:59.000Z

211

Temperature dependence of plasmonic terahertz absorption in grating-gate gallium-nitride transistor structures  

Science Journals Connector (OSTI)

Strong plasmon resonances have been observed in the terahertz transmission spectra (1–5 THz) of large-area slit-grating-gate AlGaN/GaN-based high-electron-mobility transistor(HEMT) structures at temperatures from 10 to 170 K. The resonance frequencies correspond to the excitation of plasmons with wave vectors equal to the reciprocal lattice vectors of the metal grating which serves both as a gate electrode for the HEMT and a coupler between plasmons and incident terahertz radiation. Wide tunability of the resonances by the applied gate voltage demonstrates potential of these devices for terahertz applications.

A. V. Muravjov; D. B. Veksler; V. V. Popov; O. V. Polischuk; N. Pala; X. Hu; R. Gaska; H. Saxena; R. E. Peale; M. S. Shur

2010-01-01T23:59:59.000Z

212

Periodic Discrete Energy for Long-Range Potentials  

E-Print Network [OSTI]

We consider periodic energy problems in Euclidean space with a special emphasis on long-range potentials that cannot be defined through the usual infinite sum. One of our main results builds on more recent developments of Ewald summation to define the periodic energy corresponding to a large class of long-range potentials. Two particularly interesting examples are the logarithmic potential and the Riesz potential when the Riesz parameter is smaller than the dimension of the space. For these examples, we use analytic continuation methods to provide concise formulas for the periodic kernel in terms of the Epstein Hurwitz Zeta function. We apply our energy definition to deduce several properties of the minimal energy including the asymptotic order of growth and the distribution of points in energy minimizing configurations as the number of points becomes large. We conclude with some detailed calculations in the case of one dimension, which shows the utility of this approach.

D. P. Hardin; E. B. Saff; Brian Simanek

2014-12-11T23:59:59.000Z

213

Survey Representing information - Classifying the Augmented Reality presentation space  

Science Journals Connector (OSTI)

Augmented Reality has a wide-ranging presentation space. In addition to presenting virtual information in a 3D space, such information can also be placed in relation to physical objects, locations or events. Decomposing this presentation space - or more ... Keywords: Augmented Reality, Information Presentation, Taxonomy

Marcus Tönnis; David A. Plecher; Gudrun Klinker

2013-12-01T23:59:59.000Z

214

VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy |  

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

VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy March 5, 2012 - 1:24pm Addthis Secretary Chu sits down with Microsoft Founder and Chairman Bill Gates at the 2012 ARPA-E Energy Innovation Summit. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Last week, attendees at the 2012 ARPA-E Energy Innovation Summit heard from a variety of leaders from across the research, business and government sectors who spoke at the conference of nearly 2,400. These speakers, along with the startup companies and innovators in attendance, converged outside of Washington, D.C., to offer their take on how America can tackle our energy challenges. One of the top-level highlights from the Summit included this fireside chat

215

Vehicle Technologies Office Merit Review 2014: GATE: Energy Efficient Vehicles for Sustainable Mobility  

Broader source: Energy.gov [DOE]

Presentation given by Ohio State University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about GATE: energy efficient...

216

Vehicle Technologies Office Merit Review 2014: DOE GATE Center of Excellence in Sustainable Vehicle Systems  

Broader source: Energy.gov [DOE]

Presentation given by Clemson University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about DOE GATE Center of...

217

A linear programming solution to the gate assignment problem at airport terminals  

E-Print Network [OSTI]

This research solves the flight-to-gate assignment problem at airports in such a way as to minimize, or at least reduce, walking distances for passengers inside terminals. Two solution methods are suggested. The first is ...

Mangoubi, Rami

1980-01-01T23:59:59.000Z

218

E-Print Network 3.0 - arbitrary phase gates Sample Search Results  

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

<< < 1 2 3 4 5 > >> Page: << < 1 2 3 4 5 > >> 41 Optical simulation of quantum logic N. J. Cerf,1 Summary: of universal quantum gates using simple optical components beam...

219

Process fidelity estimation of linear optical quantum CZ gate: A comparative study  

E-Print Network [OSTI]

We present a systematic comparison of different methods of fidelity estimation of a linear optical quantum controlled-Z gate implemented by two-photon interference on a partially polarizing beam splitter. We have utilized a linear fidelity estimator based on the Monte Carlo sampling technique as well as a non-linear estimator based on maximum likelihood reconstruction of a full quantum process matrix. In addition, we have also evaluated lower bound on quantum gate fidelity determined by average quantum state fidelities for two mutually unbiased bases. In order to probe various regimes of operation of the gate we have introduced a tunable delay line between the two photons. This allowed us to move from high-fidelity operation to a regime where the photons become distinguishable and the success probability of the scheme significantly depends on input state. We discuss in detail possible systematic effects that could influence the gate fidelity estimation.

M. Micuda; M. Sedlak; I. Straka; M. Mikova; M. Dusek; M. Jezek; J. Fiurasek

2014-03-19T23:59:59.000Z

220

Ligand-Gated Chloride Channels Are Receptors for Biogenic Amines in C. elegans  

E-Print Network [OSTI]

Biogenic amines such as serotonin and dopamine are intercellular signaling molecules that function widely as neurotransmitters and neuromodulators. We have identified in the nematode Caenorhabditis elegans three ligand-gated ...

Ringstad, Niels

Note: This page contains sample records for the topic "range gate spacing" 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

Synthesis of reversible functions using various gate libraries and design specifications  

Science Journals Connector (OSTI)

This dissertation is devoted to efficient automated logic synthesis of reversible circuits using various gate types and initial specifications. These Reversible circuits are of interest to several modern technologies, including Nanotechnology, ...

Nouraddin Alhagi / Marek Perkowski

2010-01-01T23:59:59.000Z

222

Gate-diffusion input (GDI): a power-efficient method for digital combinatorial circuits  

Science Journals Connector (OSTI)

Gate diffusion input (GDI) - a new technique of low-power digital combinatorial circuit design - is described. This technique allows reducing power consumption, propagation delay, and area of digital circuits while maintaining low complexity of logic ...

A. Morgenshtein; A. Fish; I. A. Wagner

2002-10-01T23:59:59.000Z

223

Positions in the glun2c-containing nmdar regulate alcohol sensitivity and ion channel gating.  

E-Print Network [OSTI]

?? The N-methyl-D-aspartate (NMDA) receptor, a subtype of glutamate-gated ion channel, has been shown to be a major target of ethanol in the central nervous… (more)

Wu, Man

2014-01-01T23:59:59.000Z

224

A high-k ferroelectric relaxor terpolymer as a gate dielectric for orgnaic thin film transistors  

SciTech Connect (OSTI)

Poly(vinylidenefluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) is a ferroelectric terpolymer relaxor with a static dielectric constant of 50, which was developed using defect modification to eliminate remnant polarization in the normal ferroelectric PVDF. In this work, this solution processable terpolymer was used as the gate insulator in bottom gated organic thin-film transistors with a pentacene semiconductor layer. Due to the high dielectric constant of P(VDF-TrFE- CFE), a large capacitive coupling between the gate and channel can be achieved which causes a high charge concentration at the interface of the semiconductor and dielectric layers. In this device, an on/ off ratio of 104 and a low minimum operation gate voltage (5-10 V) were attained

Wu, Shan [Pennsylvania State University; Shao, Ming [ORNL; Burlingame, Quinn [Pennsylvania State University; Chen, Xiangzhong [Penn state university; Lin, Minren [Pennsylvania State University; Xiao, Kai [ORNL; Zhang, Qiming [Pennsylvania State University

2013-01-01T23:59:59.000Z

225

Practical Analysis of a New Type Radiant Heating Technology in a Large Space Building  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Heating technologies fo r energy efficiency Vol.III-3-4 Practical Analysis of a New Type Radiant Heating Technology in a Large Space Building Guohui Feng Guangyu Cao Li Gang Ph.D. Ph... achieve above 95%. Since not heating up indoor air, it is specially suited for heating of factory buildings where the conditions of heat preservation and sealing are poor and their gates are opened frequently. The off-on of radiation heating system...

Feng, G.; Cao, G.; Gang, L.

2006-01-01T23:59:59.000Z

226

In Outer Space without a Space Suit?  

E-Print Network [OSTI]

The author proposes and investigates his old idea - a living human in space without the encumbrance of a complex space suit. Only in this condition can biological humanity seriously attempt to colonize space because all planets of Solar system (except the Earth) do not have suitable atmospheres. Aside from the issue of temperature, a suitable partial pressure of oxygen is lacking. In this case the main problem is how to satiate human blood with oxygen and delete carbonic acid gas (carbon dioxide). The proposed system would enable a person to function in outer space without a space suit and, for a long time, without food. That is useful also in the Earth for sustaining working men in an otherwise deadly atmosphere laden with lethal particulates (in case of nuclear, chemical or biological war), in underground confined spaces without fresh air, under water or a top high mountains above a height that can sustain respiration.

Alexander Bolonkin

2008-06-24T23:59:59.000Z

227

In Outer Space without a Space Suit?  

E-Print Network [OSTI]

The author proposes and investigates his old idea - a living human in space without the encumbrance of a complex space suit. Only in this condition can biological humanity seriously attempt to colonize space because all planets of Solar system (except the Earth) do not have suitable atmospheres. Aside from the issue of temperature, a suitable partial pressure of oxygen is lacking. In this case the main problem is how to satiate human blood with oxygen and delete carbonic acid gas (carbon dioxide). The proposed system would enable a person to function in outer space without a space suit and, for a long time, without food. That is useful also in the Earth for sustaining working men in an otherwise deadly atmosphere laden with lethal particulates (in case of nuclear, chemical or biological war), in underground confined spaces without fresh air, under water or a top high mountains above a height that can sustain respiration.

Bolonkin, Alexander

2008-01-01T23:59:59.000Z

228

Space System Architecture  

E-Print Network [OSTI]

Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust II and III)

McManus, Dr. Hugh

229

AN AUTOZEROING FLOATING-GATE BANDPASS FILTER Paul Hasler, Bradley A. Minch, and Chris Diorio  

E-Print Network [OSTI]

is the thermal Figure 1: An autozeroing oating-gate ampli er AFGA that uses pFET hot-electron injection a bandpass oating-gate ampli er that uses tunneling and pFET hot-electron injection to set its DC operating the current through the pFET. Steady state occurs when the injection current is equal to the tunneling current

Diorio, Chris

230

Yield estimates and comparisons for full custom, standard cell, and gate array design methodologies  

E-Print Network [OSTI]

YIELD ESTIMATES AND COMPARISONS FOR FULL CUSTOM, STANDARD CELL, AND GATE ARRAY DESIGN METHODOLOGIES A Thesis by MARCELLA EVELYN NORTE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1990 Major Subject: Electrical Engineering YIELD ESTIMATES AND COMPARISONS FOR FULL CUSTOM, STANDARD CELL, AND GATE ARRAY DESIGN METHODOLOGIES A Thesis by MARCELLA EVELYN NORTE Approved...

Norte, Marcella Evelyn

2012-06-07T23:59:59.000Z

231

Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing  

E-Print Network [OSTI]

A quantum computer can solve hard problems - such as prime factoring, database searching, and quantum simulation - at the cost of needing to protect fragile quantum states from error. Quantum error correction provides this protection, by distributing a logical state among many physical qubits via quantum entanglement. Superconductivity is an appealing platform, as it allows for constructing large quantum circuits, and is compatible with microfabrication. For superconducting qubits the surface code is a natural choice for error correction, as it uses only nearest-neighbour coupling and rapidly-cycled entangling gates. The gate fidelity requirements are modest: The per-step fidelity threshold is only about 99%. Here, we demonstrate a universal set of logic gates in a superconducting multi-qubit processor, achieving an average single-qubit gate fidelity of 99.92% and a two-qubit gate fidelity up to 99.4%. This places Josephson quantum computing at the fault-tolerant threshold for surface code error correction. Our quantum processor is a first step towards the surface code, using five qubits arranged in a linear array with nearest-neighbour coupling. As a further demonstration, we construct a five-qubit Greenberger-Horne-Zeilinger (GHZ) state using the complete circuit and full set of gates. The results demonstrate that Josephson quantum computing is a high-fidelity technology, with a clear path to scaling up to large-scale, fault-tolerant quantum circuits.

R. Barends; J. Kelly; A. Megrant; A. Veitia; D. Sank; E. Jeffrey; T. C. White; J. Mutus; A. G. Fowler; B. Campbell; Y. Chen; Z. Chen; B. Chiaro; A. Dunsworth; C. Neill; P. O`Malley; P. Roushan; A. Vainsencher; J. Wenner; A. N. Korotkov; A. N. Cleland; John M. Martinis

2014-02-19T23:59:59.000Z

232

Correlation of gross tumor volume excursion with potential benefits of respiratory gating  

SciTech Connect (OSTI)

Purpose: To test the hypothesis that the magnitude of thoracic tumor motion can be used to determine the desirability of respiratory gating. Methods and materials: Twenty patients to be treated for lung tumors had computed tomography image data sets acquired under assisted breath hold at normal inspiration (100% tidal volume), at full expiration (0% tidal volume), and under free breathing. A radiation oncologist outlined gross tumor volumes (GTVs) on the breath-hold computed tomographic images. These data sets were registered to the free-breathing image data set. Two sets of treatment plans were generated: one based on an internal target volume explicitly formed from assessment of the excursion of the clinical target volume (CTV) through the respiratory cycle, representing an ungated treatment, and the other based on the 0% tidal volume CTV, representing a gated treatment with little margin for residual motion. Dose-volume statistics were correlated to the magnitude of the motion of the center of the GTV during respiration. Results: Patients whose GTVs were >100 cm{sup 3} showed little decrease in lung dose under gating. The other patients showed a correlation between the excursion of the center of the GTV and a reduction in potential lung toxicity. As residual motion increased, the benefits of respiratory gating increased. Conclusion: Gating seems to be advantageous for patients whose GTVs are <100 cm{sup 3} and for whom the center of the GTV exhibits significant motion, provided residual motion under gating is kept small.

Starkschall, George [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)]. E-mail: gstarksc@mdanderson.org; Forster, Kenneth M. [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Kitamura, Kei [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Department of Radiology, Hokkaido University, Graduate School of Medicine, Sapporo (Japan); Cardenas, Alex [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Tucker, Susan L. [Department of Biomathematics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Stevens, Craig W. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)

2004-11-15T23:59:59.000Z

233

Magic State Distillation and Gate Compilation in Quantum Algorithms for Quantum Chemistry  

E-Print Network [OSTI]

Quantum algorithms for quantum chemistry map the dynamics of electrons in a molecule to the dynamics of a coupled spin system. To reach chemical accuracy for interesting molecules, a large number of quantum gates must be applied which implies the need for quantum error correction and fault-tolerant quantum computation. Arbitrary fault-tolerant operations can be constructed from a small, universal set of fault-tolerant operations by gate compilation. Quantum chemistry algorithms are compiled by decomposing the dynamics of the coupled spin-system using a Trotter formula, synthesizing the decomposed dynamics using Clifford operations and single-qubit rotations, and finally approximating the single-qubit rotations by a sequence of fault-tolerant single-qubit gates. Certain fault-tolerant gates rely on the preparation of specific single-qubit states referred to as magic states. As a result, gate compilation and magic state distillation are critical for solving quantum chemistry problems on a quantum computer. We review recent progress that has improved the efficiency of gate compilation and magic state distillation by orders of magnitude.

Colin J. Trout; Kenneth R. Brown

2015-01-07T23:59:59.000Z

234

Acoustic sounding of the tropical marine boundary layer during GATE  

Science Journals Connector (OSTI)

A vertically pointed monostatic acoustic sounder was installed on the NOAA ShipOCEANOGRAPHER during the Global Atmospheric Research Program Atlantic Tropical Experiment (GATE). The sounderantenna was mounted on a gyrocontrolled platform to compensate for the ship'spitch and roll motions. Extensive measures such as mounting the antenna assembly on a vibration isolator and installing absorbing cuffs had to be taken to reduce interference by ship?generated noise. Back?scattered acoustic data obtained from up to 850 m height describe the tropical marine boundary layer in unique and hitherto unseen detail. During undisturbed weather conditions the facsimile record showed convective plumes rising from the surface of the water up to 400 m. Storm?generated disturbances resulted in a substantial modification of the boundary layer; low?level multilayered undulating inversions formed from cool outflow currents. The inversions persisted for up to 16 hours. Low?level patchy cumulus clouds produced characteristic hummock?shaped acoustic echoes. Analysis of the Doppler frequency shift of the returns allowed the determination of vertical velocities within these clouds and underlying convective plumes.

P. A. Mandics; J. E. Gaynor; F. F. Hall Jr.

1976-01-01T23:59:59.000Z

235

Space: Dreams of the new space race  

Science Journals Connector (OSTI)

... new-space sector has been booming, thanks to a change in its business model. Private spaceflight has always been a business for dreamers, and now one group of dreamers ... , Virginia, pioneered the marketplace for space tourism. Since 2001, it has sent five private individuals into orbit on Russian spacecraft, at US$20 million a trip. Then, ...

David Chandler

2007-08-29T23:59:59.000Z

236

Radar range measurements in the atmosphere.  

SciTech Connect (OSTI)

The earth's atmosphere affects the velocity of propagation of microwave signals. This imparts a range error to radar range measurements that assume the typical simplistic model for propagation velocity. This range error is a function of atmospheric constituents, such as water vapor, as well as the geometry of the radar data collection, notably altitude and range. Models are presented for calculating atmospheric effects on radar range measurements, and compared against more elaborate atmospheric models.

Doerry, Armin Walter

2013-02-01T23:59:59.000Z

237

Atomically flat La-silicate/Si interface using tungsten carbide gate electrode with nano-sized grain  

SciTech Connect (OSTI)

Interface properties of La-silicate gate dielectrics on Si substrates with W or nano-sized grain W{sub 2}C gate electrodes have been investigated. A low interface state density of 2.5?×?10{sup 11}?cm{sup ?2}/eV has been achieved with W{sub 2}C gate electrodes, which is one third of those with W gate electrode. An interface roughness of 0.33?nm with spatial frequency comparable to the grain size of W gate electrode has been observed. Besides, an atomically flat interface of 0.12?nm has been obtained with W{sub 2}C gate electrode. The origin of flat interface may be attributed to the elimination of inhomogeneous stress by grains in metal electrode.

Tuokedaerhan, K.; Natori, K.; Iwai, H. [Frontier Research Center, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503 (Japan); Kakushima, K., E-mail: kakushima@ep.titech.ac.jp; Kataoka, Y.; Nishiyama, A.; Sugii, N.; Wakabayashi, H.; Tsutsui, K. [Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502 (Japan)

2014-01-13T23:59:59.000Z

238

Advancing tests of relativistic gravity via laser ranging to Phobos  

E-Print Network [OSTI]

Astrophysics and Space Science Library. Springer, Berlin (Astrophysics and Space Science Library. Springer, Berlin (

2010-01-01T23:59:59.000Z

239

Part I:Part I: Degradation in 3.2 nm Gate Oxides:Degradation in 3.2 nm Gate Oxides: Effects on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET  

E-Print Network [OSTI]

on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET Characteristics.2 nm Gate Oxides: Effects on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET

Anlage, Steven

240

Josephson-junction arrays with long-range interactions J. Kent Harbaugh and D. Stroud  

E-Print Network [OSTI]

Josephson-junction arrays with long-range interactions J. Kent Harbaugh and D. Stroud Department-voltage (IV) characteristics of a Josephson-junction array with long-range inter- actions. The array consists of two sets of equally spaced parallel superconducting wires placed at right angles. A Josephson junction

Stroud, David

Note: This page contains sample records for the topic "range gate spacing" 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

Full-Swing Gate Diffusion Input logic-Case-study of low-power CLA adder design  

Science Journals Connector (OSTI)

Full Swing Gate Diffusion Input (FS-GDI) methodology is presented. The proposed methodology is applied to a 40nm Carry Look Ahead Adder (CLA). The CLA is implemented mainly using GDI full-swing F1 and F2 gates, which are the counterparts of standard ... Keywords: Alternative logic family, Carry Look Ahead (CLA) adder, Full-Swing GDI, Gate Difusion Input (GDI), Low power

Arkadiy Morgenshtein; Viacheslav Yuzhaninov; Alexey Kovshilovsky; Alexander Fish

2014-01-01T23:59:59.000Z

242

Power beaming providing a space power infrastructure  

SciTech Connect (OSTI)

This study, based on two levels of technology, applies the power beaming concept to four planned satellite constellations. The analysis shows that with currently available technology, power beaming can provide mass savings to constellations in orbits ranging from low earth orbit to geosynchronous orbit. Two constellations, space surveillance and tracking system and space based radar, can be supported with current technology. The other two constellations, space-based laser array and boost surveillance and tracking system, will require power and transmission system improvements before their breakeven specific mass is achieved. A doubling of SP-100 conversion efficiency from 10 to 20/% would meet or exceed breakeven for these constellations.

Bamberger, J.A.; Coomes, E.P.

1992-08-01T23:59:59.000Z

243

Shift Invariant Spaces on Lca Groups  

E-Print Network [OSTI]

In this article we extend the theory of shift-invariant spaces to the context of LCA groups. We introduce the notion of H-invariant space for a countable discrete subgroup H of an LCA group G, and show that the concept of range function and the techniques of fiberization are valid in this context. As a consequence of this generalization we prove characterizations of frames and Riesz bases of these spaces extending previous results, that were known for Rd and the lattice Zd .

Cabrelli, Carlos

2009-01-01T23:59:59.000Z

244

Solar Concentration in Space  

Science Journals Connector (OSTI)

Solar concentrators go space. Lens and mirror-based solar concentrators have recently begun to boost photovoltaic power supplies for satellites in space. In 1998, the first mission carrying solar concentrators...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

245

Space-based detectors  

Science Journals Connector (OSTI)

The parallel session C5 on Space-Based Detectors gave a broad overview over the planned space missions related to gravitational wave detection. Overviews of the revolutionary science to be expected from LISA was ...

A. Sesana; W. J. Weber; C. J. Killow…

2014-11-01T23:59:59.000Z

246

Quotients of Metric Spaces  

E-Print Network [OSTI]

the properties of quotient spaces of metric spaces. We will use "iff" as an abbreviation for "if and only if". If f is a function from X onto Y, we will write f: X --->> Y....

Herman, Robert A.

1968-01-01T23:59:59.000Z

247

Architecting space communication networks  

E-Print Network [OSTI]

Reliable communication and navigation services are critical to robotic and human space missions. NASA currently provides them through three independent and uncoordinated network that consist of both Earth-based and space-based ...

Sanchez Net, Marc

2014-01-01T23:59:59.000Z

248

Space Shuttle Program Status  

E-Print Network [OSTI]

Brigham City, Utah Space Shuttle Main Engines Pratt & Whitney/Rocketdyne Canoga Park, CA NASA JSC Houston

Waliser, Duane E.

249

Cubature on Wiener space  

Science Journals Connector (OSTI)

...research-article Cubature on Wiener space Terry Lyons Nicolas Victoir...a cubature formula on Wiener space of degree m.R eferences Ben...M. 1996 CarnotCarath eodory spaces seen from within: sub-Riemannian...North-Holland Mathematical Library. Kloeden, P. E. & Platen...

2004-01-01T23:59:59.000Z

250

Whither design space?  

Science Journals Connector (OSTI)

Design space exploration is a long-standing focus in computational design research. Its three main threads are accounts of designer action, development of strategies for amplification of designer action in exploration, and discovery of computational ... Keywords: Design Space Exploration, Knowledge Representation, Search, State Space, Typed Feature Structures

Robert F. Woodbury; Andrew L. Burrow

2006-04-01T23:59:59.000Z

251

Developments in space engineering and space science  

Science Journals Connector (OSTI)

...geostationary satellite INSAT, which provides both weather observation and...of results in satellite missions monitoring space weather as for those...At that time satellite data were only...on numerical weather predictions...

2003-01-01T23:59:59.000Z

252

Nuclear Physics Long Range Plan | Jefferson Lab  

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

Nuclear Physics Long Range Plan June 26, 2014 For a couple of years now, we have been waiting to get started on the next nuclear physics long range plan (LRP). What does that mean?...

253

Medium- and Long-Range Forecasting  

Science Journals Connector (OSTI)

In contrast to short and extended range forecasts, predictions for periods beyond 5 days use time-averaged, midtropospheric height fields as their primary guidance. As time ranges are increased to 3O- and 90-day outlooks, guidance increasingly ...

A. James Wagner

1989-09-01T23:59:59.000Z

254

Viking Range: Order (2014-CE-23014)  

Broader source: Energy.gov [DOE]

DOE ordered Viking Range, LLC to pay a $8,000 civil penalty after finding Viking Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

255

American Range: Order (2014-CE-23006)  

Broader source: Energy.gov [DOE]

DOE ordered American Range Corporation to pay a $8,000 civil penalty after finding American Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

256

Dissociation of human thalamic and cortical SEP gating as revealed by intrathalamic recordings under muscle relaxation  

Science Journals Connector (OSTI)

Gating’ refers to a reduction of cortical somatosensory evoked potentials (SEP) under multiple simultaneous afferent inputs. This study used the opportunity for intrathalamic recordings in patients with movement disorders to clarify to what extent cortical SEP gating is preceded by thalamic gating. Recordings were performed in 10 patients, narcotised by intravenous propofol when receiving implantation of a therapeutic deep brain stimulator system. SEP were elicited by an 8.1-Hz median nerve stimulation at twice motor threshold and were recorded simultaneously from both intrathalamic and scalp electrodes before and after the application of the depolarising muscle blocker succinylcholine which eliminated both the background muscular tone and the repetitive muscle twitches caused by the median nerve stimulation. Peripheral compound action potentials recorded at the upper arm remained unchanged after complete muscle relaxation, proving a continuously effective nerve stimulation. In contrast, the primary cortical SEP component (N20) was significantly increased under succinylcholine (+17%). This cortical release from gating was not paralleled, however, by an increased thalamic response; rather, the primary thalamic response (P16) showed a slight (?9%) but highly significant amplitude reduction. As the recordings were performed in narcotised patients, any potentially variable attentional bias on part of the subjects can be excluded as confounding factor when comparing the two experimental conditions with vs. without reafferent somatosensory inflow. Thus, given the high signal-to-noise ratio of intrathalamically recorded SEP, the present study shows a distinct thalamo–cortical dissociation with the primary somatosensory cortex representing the predominant level exhibiting SEP gating.

Fabian Klostermann; René Gobbele; Helmut Buchner; Gabriel Curio

2002-01-01T23:59:59.000Z

257

Water gate array for current flow or tidal movement pneumatic harnessing system  

DOE Patents [OSTI]

The invention, which provides a system for harnessing power from current flow or tidal movement in a body of water, comprises first and second hydro-pneumatic chambers each having ingress and egress below the water surface near the river or ocean floor and water gates operative to open or seal the ports to the passage of water. In an exemplary embodiment, the gates are sychronized by shafts so that the ingress ports of each chamber are connected to the egress ports of each other chamber. Thus, one set of gates is closed, while the other is open, thereby allowing water to flow into one chamber and build air pressure therein and allowing water to flow out of the other chamber and create a partial vacuum therein. A pipe connects the chambers, and an air turbine harnesses the air movement within the pipe. When water levels are equilibrated, the open set of gates is closed by a counterweight, and the other set is allowed to open by natural force of the water differential. The water gates may be comprised of a plurality of louvers which are ganged for simultaneous opening and closing. The system is designed to operate with air turbines or other pneumatic devices. Its design minimizes construction cost and environmental impact, yet provides a clean renewable energy source.

Gorlov, Alexander M. (Brookline, MA)

1991-01-01T23:59:59.000Z

258

TANK SPACE OPTIONS REPORT  

SciTech Connect (OSTI)

Since this report was originally issued in 2001, several options proposed for increasing double-shell tank (DST) storage space were implemented or are in the process of implementation. Changes to the single-shell tank (SST) waste retrieval schedule, completion of DST space saving options, and the DST space saving options in progress have delayed the projected shortfall of DST storage space from the 2007-2011 to the 2018-2025 timeframe (ORP-11242, River Protection Project System Plan). This report reevaluates options from Rev. 0 and includes evaluations of new options for alleviating projected restrictions on SST waste retrieval beginning in 2018 because of the lack of DST storage space.

WILLIS WL; AHRENDT MR

2009-08-11T23:59:59.000Z

259

Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and  

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

Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders February 28, 2012 - 7:02am Addthis Washington D.C. - This week, the Advanced Research Projects Agency - Energy (ARPA-E) is hosting its third annual Energy Innovation Summit, which is designed to unite key players from all sectors of America's energy innovation community to share ideas for how to lead the world in the development of next generation clean energy technologies, develop our nation's energy resources, and build an American economy that lasts. Tomorrow's full agenda with speakers is below. For specific press requests, please contact Keri Fulton at keri.fulton@hq.doe.gov.

260

Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and  

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

Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders February 28, 2012 - 7:02am Addthis Washington D.C. - This week, the Advanced Research Projects Agency - Energy (ARPA-E) is hosting its third annual Energy Innovation Summit, which is designed to unite key players from all sectors of America's energy innovation community to share ideas for how to lead the world in the development of next generation clean energy technologies, develop our nation's energy resources, and build an American economy that lasts. Tomorrow's full agenda with speakers is below. For specific press requests, please contact Keri Fulton at keri.fulton@hq.doe.gov.

Note: This page contains sample records for the topic "range gate spacing" 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

ARPA-E Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred  

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

Announces 2012 Energy Innovation Summit Featuring Bill Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred Smith and Lee Scott ARPA-E Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred Smith and Lee Scott September 9, 2011 - 9:25am Addthis New York, NY - The U.S. Department of Energy's Advanced Research Projects Agency - Energy (ARPA-E) Director, Arun Majumdar, announced yesterday that the Agency will hold its third annual ARPA-E Energy Innovation Summit from February 27 - 29, 2012 at the Gaylord Convention Center just outside Washington, D.C. Bill Gates, founder and chairman of Microsoft; Fred Smith, chairman, president and CEO of FedEx; and Lee Scott, former CEO of Wal-Mart; will join Secretary Chu and Director Majumdar as distinguished keynote speakers. "After two successful Summits, I'm excited to once again bring some of

262

Direct deposition of aluminum oxide gate dielectric on graphene channel using nitrogen plasma treatment  

SciTech Connect (OSTI)

Deposition of high-quality dielectric on a graphene channel is an essential technology to overcome structural constraints for the development of nano-electronic devices. In this study, we investigated a method for directly depositing aluminum oxide (Al{sub 2}O{sub 3}) on a graphene channel through nitrogen plasma treatment. The deposited Al{sub 2}O{sub 3} thin film on graphene demonstrated excellent dielectric properties with negligible charge trapping and de-trapping in the gate insulator. A top-gate-structural graphene transistor was fabricated using Al{sub 2}O{sub 3} as the gate dielectric with nitrogen plasma treatment on graphene channel region, and exhibited p-type transistor characteristics.

Lim, Taekyung; Kim, Dongchool; Ju, Sanghyun [Department of Physics, Kyonggi University, Suwon, Gyeonggi-Do 443-760 (Korea, Republic of)

2013-07-01T23:59:59.000Z

263

Photon-energy-dependent light effects in organic nano-floating-gate nonvolatile memories  

Science Journals Connector (OSTI)

Abstract A pentacene-based organic field-effect transistor nonvolatile memory, in which polystyrene covered Au nanoparticles act as the nano-floating-gate, is probed under different illumination conditions. The memory window can be greatly enlarged upon illumination depending on incident photon energy and intensity, and two light effects are proposed and discussed. The minority multiplication effect enhances the minority carrier tunneling into the nano-floating-gate, resulting in the remarkable positive VT shift. The excitation-induced injection effect is strongly photon energy dependent, and it is responsible for the significant negative VT shift. Appropriate illumination is favorable for reducing the programming/erasing voltage of organic nano-floating-gate nonvolatile memories.

Xu Gao; Chang-Hai Liu; Xiao-Jian She; Qin-Liang Li; Jie Liu; Sui-Dong Wang

2014-01-01T23:59:59.000Z

264

Project PROPA-GATOR: intermediate range explosion airblast propagation measurements  

SciTech Connect (OSTI)

Several hundred explosions of flaked TNT, ranging in charge weight from 2.3 kg to 1145 kg were fired at the NASA Kennedy Space Center, Florida, in March and June, 1979. Comprehensive meteorological measurements were made by rawinsonde balloons and on a nearby 150 m tower, including winds, turbulence, temperatures, and humidity. A cruciform array of airblast gages was operated, with gages at 200 m, 500 m, 1 km, 2 km, and 5 km ranges from the explosions. For some events as many as six microbarographs were operated at distances to 25 km. Airblast results have been correlated against refractive atmospheric conditions, establishing a functional relationship between overpressure decay with distance and the sound velocity gradient with height.

Reed, J.W.

1980-01-01T23:59:59.000Z

265

National Aeronautics and Space Administration April 2012  

E-Print Network [OSTI]

Ms, and Manufacturing roadMap Technology Area 12 Bob Piascik, Chair John Vickers, Chair Dave Lowry Steve Scotti Jeff roadmap, including both technology pull and technology push strategies, considers a wide range of pathways Space Technology Roadmap, an integrated set of fourteen technology area roadmaps, recommending

266

National Aeronautics and Space Administration Materials, structures,  

E-Print Network [OSTI]

Ms, and Manufacturing roadMap Technology Area 12 Bob Piascik, Chair John Vickers, Chair Dave Lowry Steve Scotti Jeff roadmap, including both technology pull and technology push strategies, considers a wide range of pathways Space Technology Roadmap, an integrated set of fourteen technology area roadmaps, recommending

Waliser, Duane E.

267

National Aeronautics and Space Administration April 2010  

E-Print Network [OSTI]

Ems roaDmap Technology Area 07 Kriss J. Kennedy, Chair Leslie Alexander Rob Landis Diane Linne Carole technology roadmap, including both technology pull and technology push strategies, considers a wide range in NASA's DRAFT Space Technology Roadmap, an integrated set of fourteen technology area roadmaps

268

National Aeronautics and Space Administration November 2010  

E-Print Network [OSTI]

Rgy SToRAge RoADmAp Technology Area 03 Valerie J. Lyons, Chair Guillermo A. Gonzalez Michael G. Houts technology roadmap, including both technology pull and technology push strategies, considers a wide range in NASA's DRAFT Space Technology Roadmap, an integrated set of fourteen technology area roadmaps

269

The Space Experiment PAMELA M. Boezioa  

E-Print Network [OSTI]

Institute, Russia m NASA/Goddard Space Flight Center, Greenbelt, (USA) n New Mexico State University, Las radiation over a large energy range (from 80 MeV up to 190 GeV for antiprotons and from 50 MeV up to 270 Ge connected with Solar and Earth physics. The apparatus will be installed onboard the polar orbiting Resurs DK

Morselli, Aldo

270

Engineering a C-Phase quantum gate: optical design and experimental realization  

E-Print Network [OSTI]

A two qubit quantum gate, namely the C-Phase, has been realized by exploiting the longitudinal momentum (i.e. the optical path) degree of freedom of a single photon. The experimental setup used to engineer this quantum gate represents an advanced version of the high stability closed-loop interferometric setup adopted to generate and characterize 2-photon 4-qubit Phased Dicke states. Some experimental results, dealing with the characterization of multipartite entanglement of the Phased Dicke states are also discussed in detail.

Andrea Chiuri; Chiara Greganti; Paolo Mataloni

2012-04-12T23:59:59.000Z

271

Electronic transport mechanisms in scaled gate-all-around silicon nanowire transistor arrays  

SciTech Connect (OSTI)

Low-frequency noise is used to study the electronic transport in arrays of 14?nm gate length vertical silicon nanowire devices. We demonstrate that, even at such scaling, the electrostatic control of the gate-all-around is sufficient in the sub-threshold voltage region to confine charges in the heart of the wire, and the extremely low noise level is comparable to that of high quality epitaxial layers. Although contact noise can already be a source of poor transistor operation above threshold voltage for few nanowires, nanowire parallelization drastically reduces its impact.

Clément, N., E-mail: nicolas.clement@iemn.univ-lille1.fr, E-mail: guilhem.larrieu@laas.fr; Han, X. L. [Institute of Electronics, Microelectronics and Nanotechnology, CNRS, Avenue Poincaré, 59652 Villeneuve d'Ascq (France)] [Institute of Electronics, Microelectronics and Nanotechnology, CNRS, Avenue Poincaré, 59652 Villeneuve d'Ascq (France); Larrieu, G., E-mail: nicolas.clement@iemn.univ-lille1.fr, E-mail: guilhem.larrieu@laas.fr [Laboratory for Analysis and Architecture of Systems (LAAS), CNRS, Universite de Toulouse, 7 Avenue Colonel Roche, 31077 Toulouse (France)

2013-12-23T23:59:59.000Z

272

Resilience of gated avalanche photodiodes against bright illumination attacks in quantum cryptography  

E-Print Network [OSTI]

Semiconductor avalanche photodiodes (APDs) are commonly used for single photon detection in quantum key distribution. Recently, many attacks using bright illumination have been proposed to manipulate gated InGaAs APDs. In order to devise effective counter-measures, careful analysis of these attacks must be carried out to distinguish between incorrect operation and genuine loopholes. Here, we show that correctly-operated, gated APDs are immune to continuous-wave illumination attacks, while monitoring the photocurrent for anomalously high values is a straightforward counter-measure against attacks using temporally tailored light.

Z. L. Yuan; J. F. Dynes; A. J. Shields

2011-06-14T23:59:59.000Z

273

A proposal for the implementation of quantum gates with photonic-crystal coupled cavity waveguides  

E-Print Network [OSTI]

Quantum computers require technologies that offer both sufficient control over coherent quantum phenomena and minimal spurious interactions with the environment. We show, that photons confined to photonic crystals, and in particular to highly efficient waveguides formed from linear chains of defects doped with atoms can generate strong non-linear interactions which allow to implement both single and two qubit quantum gates. The simplicity of the gate switching mechanism, the experimental feasibility of fabricating two dimensional photonic crystal structures and integrability of this device with optoelectronics offers new interesting possibilities for optical quantum information processing networks.

Dimitris G. Angelakis; Marcelo Franca Santos; Vassilis Yannopapas; Artur Ekert

2007-04-12T23:59:59.000Z

274

Tonopah Test Range capabilities: technical manual  

SciTech Connect (OSTI)

This manual describes Tonopah Test Range (TTR), defines its testing capabilities, and outlines the steps necessary to schedule tests on the Range. Operated by Sandia National Laboratories, TTR is a major test facility for DOE-funded weapon programs. The Range presents an integrated system for ballistic test vehicle tracking and data acquisition. Multiple radars, optical trackers, telemetry stations, a central computer complex, and combined landline/RF communications systems assure full Range coverage for any type of test. Range operations are conducted by a department within Sandia's Field Engineering Directorate. While the overall Range functions as a complete system, it is operationally divided into the Test Measurements, Instrumentation Development, and Range Operations divisions. The primary function of TTR is to support DOE weapons test activities. Management, however, encourages other Government agencies and their contractors to schedule tests on the Range which can make effective use of its capabilities. Information concerning Range use by organizations outside of DOE is presented. Range instrumentation and support facilities are described in detail. This equipment represents the current state-of-the-art and reflects a continuing commitment by TTR management to field the most effective tracking and data acquisition system available.

Manhart, R.L.

1982-11-01T23:59:59.000Z

275

A procedure for localizing faults to specific gates using power supply transient signals is described. The method  

E-Print Network [OSTI]

of gates along sensitized paths from the composite transient signals measured at the power ports or C4s by a defect-free chip or simulation to identify the position of a defect. The transients produced at the C4sAbstract A procedure for localizing faults to specific gates using power supply transient signals

Plusquellic, James

276

Activation of the Inositol (1,4,5)-Triphosphate Calcium Gate Receptor Is Required for HIV-1 Gag Release  

Science Journals Connector (OSTI)

...27 Jagannath, A., and M. J. A. Wood. 2009. Localization of double-stranded...inositol (1,4,5)-triphosphate calcium gate receptor is required for HIV-1 Gag release...5)-triphosphate receptor (IP3R) gates intracellular Ca(2+) stores. Following...

Lorna S. Ehrlich; Gisselle N. Medina; Mahfuz B. Khan; Michael D. Powell; Katsuhiko Mikoshiba; Carol A. Carter

2010-04-28T23:59:59.000Z

277

Dominant-Negative Synthesis Suppression of Voltage-Gated Calcium Channel Cav2.2 Induced by Truncated Constructs  

E-Print Network [OSTI]

Dominant-Negative Synthesis Suppression of Voltage-Gated Calcium Channel Cav2.2 Induced, United Kingdom Voltage-gated calcium channel 1 subunits consist of four domains (I­IV), each with six by the cytoplasmic I-II loop of Cav2.2. It requires transmembrane seg- ments, because the isolated Cav2.2 N terminus

Dolphin, Annette C.

278

High-Performance Integrated Dual-Gate AlGaN/GaN Enhancement-Mode Transistor  

E-Print Network [OSTI]

In this letter, we present a new AlGaN/GaN enhancement-mode (E-mode) transistor based on a dual-gate structure. The dual gate allows the transistor to combine an E-mode behavior with low on-resistance and very high breakdown ...

Lu, Bin

279

ECG-GATED C-ARM COMPUTED TOMOGRAPHY USING L1 REGULARIZATION Cyril Mory 1,3  

E-Print Network [OSTI]

ECG-GATED C-ARM COMPUTED TOMOGRAPHY USING L1 REGULARIZATION Cyril Mory 1,3 , Bo Zhang 3 , Vincent of the algorithm used for the minimization. Index Terms -- C-Arm, computed tomography, ECG- gating, augmented arises from the synchronization with the patient's electrocardiogram (ECG), which is necessary to avoid

Paris-Sud XI, Université de

280

Saturation and Dynamic Range of Microchannel Plate-Based X-Ray Imagers  

SciTech Connect (OSTI)

This paper describes recent advances in Monte Carlo simulations of microchannel plate (MCP)–based x-ray detectors, a continuation of ongoing work in this area. A Monte Carlo simulation model has been developed over the past several years by National Security Technologies, LLC (NSTec). The model simulates the secondary electron emission process in an MCP pore and includes the effects of gain saturation. In this work we focus on MCP gain saturation and dynamic range. We have performed modeling and experimental characterizations of L/D = 46, 10-micron diameter, MCP-based detectors. The detectors are typically operated by applying a subnanosecond voltage pulse, which gates the detector on. Agreement between the simulations and experiment is very good for a variety of voltage pulse waveforms ranging in width from 150 to 300 ps. The results indicate that such an MCP begins to show nonlinear gain around 5 × 10^4 electrons per pore and hard saturation around 105 electrons per pore. The simulations show a difference in MCP sensitivity vs voltage for high flux of photons producing large numbers of photoelectrons on a subpicosecond timescale. Simulations and experiments both indicate an MCP dynamic range of 1 to 10,000, and the dynamic range depends on how the voltage is applied.

,

2012-05-04T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Space Systems Finland 1 Deployment in the Space Sector  

E-Print Network [OSTI]

© Space Systems Finland 1 Deployment in the Space Sector #12;© Space Systems Finland 2 SW Constraints Design Requirements User Requirements SW Requirements #12;© Space Systems Finland 3 The space, but there is no viable alternative · Many requirements are not testable #12;© Space Systems Finland 4 SSF OBJECTIVES

Southampton, University of

282

Inexact range-space Krylov solvers for linear systems arising from inverse problems  

E-Print Network [OSTI]

is crucial in data assimilation appli- cations and other inverse problems. Secondly, it is shown.1) and methods of the type we just men- tioned finds its origin in (but is not limited by) the data assimilation. Keywords: Krylov methods, linear systems, inexact matrix products, data assimila- tion. 1 Introduction

Toint, Philippe

283

Y-12 to help create fuel for NASA's long-range space exploration...  

National Nuclear Security Administration (NNSA)

2013 (18) August 2013 (17) July 2013 (20) June 2013 (19) May 2013 (25) April 2013 (17) March 2013 (23) February 2013 (22) January 2013 (21) December 2012 (19) November 2012 (19)...

284

Berkeley Lab Space  

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

Space Space Committee Charter Articles Presentations Feedback Contact Us ANNOUNCEMENTS Space Planning Advisory Committee (SPAC) The LBNL Space Planning Advisory Committee (SPAC) was chartered in January 2010 to help manage the growth, both in the short term as well as long term. Specifically, SPAC will recommend to senior laboratory management policies and procedures for the allocation and utilization of space and opportunities for increased efficiency. (For the complete charter, click here.)We welcome comments and suggestions. Our email is: SPAC@lbl.gov. SPAC (Space Planning Advisory Committee) SPAC Members Telephone Number Email Rich Diamond 510-486-4459 RCDiamond@lbl.gov Rich McClure 510-486-4486 RMMcClure@lbl.gov Diana Attia 510-486-7399 DMAttia@lbl.gov Rebecca Rishell 510-486-6689

285

Range Design Criteria- June 4, 2012  

Broader source: Energy.gov [DOE]

This document contains the currently-approved firearms "Range Design Criteria" referred to on DOE O 473.3, Protection Program Operations

286

AB Space Engine  

E-Print Network [OSTI]

On 4 January 2007 the author published the article Wireless Transfer of Electricity in Outer Space in http://arxiv.org wherein he offered and researched a new revolutionary method of transferring electric energy in space. In that same article, he offered a new engine which produces a large thrust without throwing away large amounts of reaction mass (unlike the conventional rocket engine). In the current article, the author develops the theory of this kind of impulse engine and computes a sample project which shows the big possibilities opened by this new AB-Space Engine. The AB-Space Engine gets the energy from ground-mounted power; a planet electric station can transfer electricity up to 1000 millions (and more) of kilometers by plasma wires. Author shows that AB-Space Engine can produce thrust of 10 tons (and more). That can accelerate a space ship to some thousands of kilometers/second. AB-Space Engine has a staggering specific impulse owing to the very small mass expended. The AB-Space Engine reacts not by expulsion of its own mass (unlike rocket engine) but against the mass of its planet of origin (located perhaps a thousand of millions of kilometers away) through the magnetic field of its plasma cable. For creating this plasma cable the AB-Space Engine spends only some kg of hydrogen.

Alexander Bolonkin

2008-03-02T23:59:59.000Z

287

Passive solar space heating  

SciTech Connect (OSTI)

An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

Balcomb, J.D.

1980-01-01T23:59:59.000Z

288

Total Space Heat-  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Buildings Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration...

289

Neutron Tomography and Space  

E-Print Network [OSTI]

Kevin Shields, “Optimization of neutron tomography for rapidNEUTRON TOMOGRAPHY AND SPACE Hal Egbert, Ronald Walker, R.industrial applications[1]. Neutron Computed Tomography was

Egbert, Hal; Walker, Ronald; Flocchini, R.

2007-01-01T23:59:59.000Z

290

A Piecewise Linearization Framework for Retail Shelf Space  

E-Print Network [OSTI]

Georgia Institute of Technology. Atlanta, GA ... models and to provide a solution procedure that can handle realistic problem sizes and that is flexible enough to be applied to a wide range of shelf space management models. To achieve this,.

2004-07-09T23:59:59.000Z

291

Today's Space Weather Space Weather Case Studies  

E-Print Network [OSTI]

tank on Space ShuQle trips alarms Impacts #12;Quebec electrical blackout: "GIC" (ground-induced current) Quebec sits on are large sheet of bedrock [rock shield], and grounding is difficult Hydro-Quebec's power grid is, within 90-sec of storm onset

292

National Aeronautics and Space Administration International Space  

E-Print Network [OSTI]

sustainability and ensure their early incorporation in the architecture ­ Apply a phased approach to exploration Partnerships Strategy · NASA leadership of a sustainable and affordable human space exploration of many costs (not LCC) or obtain funding or resource offsets 2. Enhance sustainability thru interdependent

Waliser, Duane E.

293

Site-Directed Amino Acid Substitutions in the Hydroxylase ? Subunit of Butane Monooxygenase from Pseudomonas butanovora: Implications for Substrates Knocking at the Gate  

Science Journals Connector (OSTI)

...intricacies of the leucine gate influence catalysis at...opening the leucine gate and shifting the geometry...where green is carbon, red is oxygen, blue is nitrogen...is through the leucine gate toward the diiron center...H. Shim, and T. K. Wood. 2002. Directed evolution...

Kimberly H. Halsey; Luis A. Sayavedra-Soto; Peter J. Bottomley; Daniel J. Arp

2006-07-01T23:59:59.000Z

294

COLORADO FRONT RANGE SEISMICITY AND SEISMIC HAZARD  

E-Print Network [OSTI]

; Herrmann, 1981) and secondary oil recovery in western Colorado at the Rangely oil field (Gibbs et al. 1973COLORADO FRONT RANGE SEISMICITY AND SEISMIC HAZARD Anne F. Sheehan University of Colorado at Boulder, 2200 Colorado Avenue, Boulder, CO 80309 John D. Godchaux Trinity University, San Antonio, TX Noah

Sheehan, Anne F.

295

Photometric Calibration of High Dynamic Range Cameras  

E-Print Network [OSTI]

calibration of cameras with a dynamic range of more than six orders of magnitude such as complex camera re with a total dynamic range of 8 orders of luminance magnitude. Three acquisitions: without filter, using to the measurements of 6 gray patches of GretagMacbeth ColorChecker chart under 6 different illumination conditions. 0

Durand, Frédo

296

National Aeronautics and Space Administration Human Exploration DEstination  

E-Print Network [OSTI]

technology roadmap, including both technology pull and technology push strategies, considers a wide range in NASA's DRAFT Space Technology Roadmap, an integrated set of fourteen technology area roadmaps. NASA developed this DRAFT SpaceTechnology Roadmap for use by the National Research Council (NRC

Waliser, Duane E.

297

Guardians at the Gates of Hell Estimating the Risk of Nuclear Theft and Terrorism  

E-Print Network [OSTI]

that pose the highest-priority risks of nuclear theft, and to evaluate policy approaches to strengtheningGuardians at the Gates of Hell Estimating the Risk of Nuclear Theft and Terrorism ­ and Identifying the Highest-Priority Risks of Nuclear Theft by Matthew Bunn SB and SM, Political Science, MIT, 1985 SUBMITTED

de Weck, Olivier L.

298

7-Gate Kinetic AMPA Model Kinetics to match EPSCs from calyx of Held  

E-Print Network [OSTI]

7-Gate Kinetic AMPA Model · Kinetics to match EPSCs from calyx of Held · Multiple closed, open and EPSC amplitude Bruce Graham Department of Computing Science and Mathematics, University of Stirling, U, including the calyx of Held in the mammalian auditory system. Such depression may be mediated

Graham, Bruce

299

The Thinnest Molecular Separation Sheet by Graphene Gates of Single-Walled Carbon Nanohorns  

Science Journals Connector (OSTI)

Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba, Chiba 263-8522, Japan ... transport properties; surface science; separation science; molecular modeling; green chemistry; molecular gates; picostructures ... The author would like to thank Dr. M. Yudasaka from the Nanotube Research Center, Advanced Industrial Science and Technology, Japan and Prof. S. Iijima from Meijo University, Japan for supplying the NHs. ...

Tomonori Ohba

2014-10-27T23:59:59.000Z

300

International Agriculture Fellowship: A Gates Foundation Grand Challenges Exploration in Endophytic Biological Control  

E-Print Network [OSTI]

International Agriculture Fellowship: A Gates Foundation Grand Challenges Exploration in Endophytic Biological Control Who we are: The International Center for Tropical Agriculture (CIAT) is a member institute of the Consultative Group on International Agricultural Research (CIAR). Based in Cali, Colombia, we focus

Ferrara, Katherine W.

Note: This page contains sample records for the topic "range gate spacing" 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

Circadian gating of the psbAIII high light response in Synechococcus sp. strain PCC 7942  

E-Print Network [OSTI]

(1-5 fold) during the peaks of the cycle. We also found that in a clock null strain the lack of an oscillator does not entirely negate the light response of PpsbAIII::luxAB; however, this response does not demonstrate gating. In contrast...

Shelton, Jeffrey Lyn

2000-01-01T23:59:59.000Z

302

Performance of a 512 x 512 Gated CMOS Imager with a 250 ps Exposure Time  

SciTech Connect (OSTI)

We describe the performance of a 512x512 gated CMOS read out integrated circuit (ROIC) with a 250 ps exposure time. A low-skew, H-tree trigger distribution system is used to locally generate individual pixel gates in each 8x8 neighborhood of the ROIC. The temporal width of the gate is voltage controlled and user selectable via a precision potentiometer. The gating implementation was first validated in optical tests of a 64x64 pixel prototype ROIC developed as a proof-of-concept during the early phases of the development program. The layout of the H-Tree addresses each quadrant of the ROIC independently and admits operation of the ROIC in two modes. If “common mode” triggering is used, the camera provides a single 512x512 image. If independent triggers are used, the camera can provide up to four 256x256 images with a frame separation set by the trigger intervals. The ROIC design includes small (sub-pixel) optical photodiode structures to allow test and characterization of the ROIC using optical sources prior to bump bonding. Reported test results were obtained using short pulse, second harmonic Ti:Sapphire laser systems operating at ?~ 400 nm at sub-ps pulse widths.

Teruya, A T; Moody, J D; Hsing, W W; Brown, C G; Griffin, M; Mead, A S

2012-10-01T23:59:59.000Z

303

Elephant Beer and Shinto Gates: Managing Similar Concepts in a Multilingual Database  

E-Print Network [OSTI]

Elephant Beer and Shinto Gates: Managing Similar Concepts in a Multilingual Database Martin" and "tembo" are completely interchangeable when talking about elephants, but bring you different brands as "rouge" in French or "nyekundu" in Swahili. An "elephant" is an elephant, whether it is "éléphant

304

Passivation effect on gate-bias stress instability of carbon nanotube thin film transistors  

SciTech Connect (OSTI)

A prior requirement of any developed transistor for practical use is the stability test. Random network carbon nanotube-thin film transistor (CNT-TFT) was fabricated on SiO{sub 2}/Si. Gate bias stress stability was investigated with various passivation layers of HfO{sub 2} and Al{sub 2}O{sub 3}. Compared to the threshold voltage shift without passivation layer, the measured values in the presence of passivation layers were reduced independent of gate bias polarity except HfO{sub 2} under positive gate bias stress (PGBS). Al{sub 2}O{sub 3} capping layer was found to be the best passivation layer to prevent ambient gas adsorption, while gas adsorption on HfO{sub 2} layer was unavoidable, inducing surface charges to increase threshold voltage shift in particular for PGBS. This high performance in the gate bias stress test of CNT-TFT even superior to that of amorphous silicon opens potential applications to active TFT industry for soft electronics.

Won Lee, Sang [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Suh, Dongseok, E-mail: energy.suh@skku.edu [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Energy Science and Department of Physics, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Young Lee, Si [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Physics, Sungkyunkwan Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Hee Lee, Young, E-mail: leeyoung@skku.edu [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Energy Science and Department of Physics, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Physics, Sungkyunkwan Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)

2014-04-21T23:59:59.000Z

305

Ligand Gated Ion Channel Functionality Assays Robert P. Hayes, Kumud Raj Poudel and James A. Brozik  

E-Print Network [OSTI]

was to devise a method suitable to test the functionality of the entire family of cysteine-loop ligand gated ion substrate was infused with calcium ions that were trapped by the POPC bilayer. Once the assembly was formed. Electrochemical measurements were taken using a calcium ion sensitive electrode. The assemblies were interrogated

Collins, Gary S.

306

Economic Congestion Relief Across Multiple Regions Requires Tradable Physical Flow-gate Rights  

E-Print Network [OSTI]

PWP-076 Economic Congestion Relief Across Multiple Regions Requires Tradable Physical Flow.ucei.berkeley.edu/ucei #12;Economic Congestion Relief Across Multiple Regions Requires Tradable Physical Flow-gate Rights- mission use. The North American Electric Reliability Council NERC is in the process of implementing

California at Berkeley. University of

307

Effects of Magnesium on Inactivation of the Voltage-gated Calcium Current in  

E-Print Network [OSTI]

Effects of Magnesium on Inactivation of the Voltage-gated Calcium Current in Cardiac Myocytes H-dependent inactivation can be modulated by changes in cytoplasmic Mg~+. INTRODUCTION Magnesium is an important constituent of the intracellular milieu. Despite the importance of magnesium as an essential cofactor

308

Influence of Electrolyte Composition on Liquid-Gated Carbon Nanotube and Graphene Transistors  

E-Print Network [OSTI]

Influence of Electrolyte Composition on Liquid-Gated Carbon Nanotube and Graphene Transistors Iddo-walled carbon nanotubes (SWNTs) and graphene can function as highly sensitive nanoscale (bio)sensors in solution. Here, we compare experimentally how SWNT and graphene transistors respond to changes in the composition

Dekker, Cees

309

Photothermal Response in Dual-Gated Bilayer Graphene M.-H. Kim,1  

E-Print Network [OSTI]

Photothermal Response in Dual-Gated Bilayer Graphene M.-H. Kim,1 J. Yan,1,2 R. J. Suess,3 T. E photoresponse in gapped bilayer graphene was investigated by optical and transport measurements. A pulse There is growing recognition that graphene has excep- tional potential as a new optoelectronic material, which has

Murphy, Thomas E.

310

Current transport, gate dielectrics and band gap engineering in graphene devices  

E-Print Network [OSTI]

Current transport, gate dielectrics and band gap engineering in graphene devices Wenjuan Zhu In this work, we studied current transport in mono-, bi- and tri-layer graphene. We find that both of the electrical field of the substrate surface polar phonons in bi-layer/tri-layer graphenes. We also find

Perebeinos, Vasili

311

Hafnium-doped tantalum oxide high-k gate dielectric films for future CMOS technology  

E-Print Network [OSTI]

of the doped films were explained by their compositions and bond structures. The Hf-doped TaOx film is a potential high-k gate dielectric for future MOS transistors. A 5 Ã?Â? tantalum nitride (TaNx) interface layer has been inserted between the Hf-doped Ta...

Lu, Jiang

2007-04-25T23:59:59.000Z

312

Sulfur surface chemistry on the platinum gate of a silicon carbide based hydrogen sensor  

E-Print Network [OSTI]

monitoring, solid-oxide fuel cells, and coal gasification, require operation at much higher temperatures thanSulfur surface chemistry on the platinum gate of a silicon carbide based hydrogen sensor Yung Ho to hydrogen sulfide, even in the presence of hydrogen or oxygen at partial pressures of 20­600 times greater

Tobin, Roger G.

313

Channel gating forces govern accuracy of mechano-electrical transduction in hair cells  

Science Journals Connector (OSTI)

...imposed on the measurements by the series resistance of the patch. Hair-bundle displacement was measured...The most important parameter is the elementary gating force, Z, defined as...Support, Non-U.S. Gov't | Animals Electric Stimulation Electrophysiology Hair Cells...

Sietse M. van Netten; Theo Dinklo; Walter Marcotti; Corné J. Kros

2003-01-01T23:59:59.000Z

314

The use of gated radionuclide angiography in the diagnosis of cardiac contusion  

SciTech Connect (OSTI)

No currently used diagnostic test is an accurate predictor of patients who will develop morbidity or mortality from cardiac contusion. In a prospective study we used gated cardiac radionuclide angiography to assess cardiac function in 30 patients with blunt chest trauma, and we compared the results of this test with those of other diagnostic studies for cardiac contusion to determine whether gated angiography is a more accurate predictor of serious cardiac injury. Diagnostic tests included the following: serial electrocardiograms (ECG), serial creatine phosphokinase muscle-brain isoenzyme (CPK-MB) and lactic dehydrogenase (LDH) isoenzymes, gated cardiac radionuclide angiography, and technetium-99m (Tc-99m) pyrophosphate scintigraphy. Abnormal studies were present in 26 patients; 22 showed abnormalities in CPK-MB, 19 on ECG, and five on gated scan. No patient demonstrated an abnormal Tc-99m pyrophosphate scan or abnormal elevation of LDH isoenzyme. Although no diagnostic test was predictive of morbidity and mortality, CPK-MB isoenzyme was the only test to correlate with morbidity and mortality. Morbidity and mortality correlated most closely with the number of associated major injuries and the presence of hypotension or hypoxia.

Fenner, J.E.; Knopp, R.; Lee, B.; dos Santos, P.A.; Wessel, R.J.; Dang, C.V.; Parks, S.N.

1984-09-01T23:59:59.000Z

315

Space Plasma Physics  

Science Journals Connector (OSTI)

...W.D., BEAM-PLASMA DISCHARGE - BUILDUP...DURING ELECTRON BEAM-PLASMA INTERACTIONS, GEOPHYSICAL...ELECTRON-BEAM IN THE ATMOSPHERE, PLANETARY AND SPACE...1980 ). Space plasma physics: electron...regula' occurred at large pitch angles. Note...in quite different areas. (i) There is...

KLAUS WILHELM; WOLFGANG STÜDEMANN; WILLIBALD RIEDLER

1984-07-13T23:59:59.000Z

316

SPACE RESOURCES ROUNDTABLE IX  

E-Print Network [OSTI]

in developing the resources of space, including the Moon, Mars, asteroids, comets, and other bodies organizations. The ninth Space Resources Roundtable solicits presentations about: · Orbital or landed measurements of the Moon, Mars, and/or asteroids and comets to identify and characterize potential resources

Rathbun, Julie A.

317

Towards interactive smart spaces  

Science Journals Connector (OSTI)

Recently, we have been witnessing how various social applications and networking services are being integrated more deeply into our daily lives. Until now, social interaction has been attributed exclusively to humans, while resources and the smart space ... Keywords: Context-Awareness, Knowledge-Based Systems, Smart Spaces, Social Interaction

Ekaterina Gilman; Oleg Davidyuk; Xiang Su; Jukka Riekki

2013-01-01T23:59:59.000Z

318

AB Space Engine  

E-Print Network [OSTI]

On 4 January 2007 the author published the article Wireless Transfer of Electricity in Outer Space in http://arxiv.org wherein he offered and researched a new revolutionary method of transferring electric energy in space. In that same article, he offered a new engine which produces a large thrust without throwing away large amounts of reaction mass (unlike the conventional rocket engine). In the current article, the author develops the theory of this kind of impulse engine and computes a sample project which shows the big possibilities opened by this new AB-Space Engine. The AB-Space Engine gets the energy from ground-mounted power; a planet electric station can transfer electricity up to 1000 millions (and more) of kilometers by plasma wires. Author shows that AB-Space Engine can produce thrust of 10 tons (and more). That can accelerate a space ship to some thousands of kilometers/second. AB-Space Engine has a staggering specific impulse owing to the very small mass expended. The AB-Space Engine reacts not b...

Bolonkin, Alexander

2008-01-01T23:59:59.000Z

319

SPACE TECHNOLOGY Actual Estimate  

E-Print Network [OSTI]

SPACE TECHNOLOGY TECH-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY.7 247.0 Exploration Technology Development 144.6 189.9 202.0 215.5 215.7 214.5 216.5 Notional SPACE TECHNOLOGY OVERVIEW .............................. TECH- 2 SBIR AND STTR

320

Remote Maneuver of Space Debris Using Photon Pressure for Active Collision Avoidance  

Science Journals Connector (OSTI)

The Space Environment Management CRC will pursue a wide ranging research program including technologies to improve tracking capability and capacity, orbit determination and propagation...

Smith, Craig H

Note: This page contains sample records for the topic "range gate spacing" 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

Ecological traits influencing range expansion across large oceanic dispersal  

E-Print Network [OSTI]

Section of Ichthyology, California Acadamy of Sciences, 55 Music Concourse Drive, Golden Gate Park, San. Successful establishment after crossing both barriers may be facilitated by broad environmental tolerance of the tropical Atlantic Ocean: the Central American Land Bridge, the Mid-Atlantic Barrier (MAB; the stretch

Bermingham, Eldredge

322

Techniques for optically compressing light intensity ranges  

DOE Patents [OSTI]

A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter.

Rushford, Michael C. (Livermore, CA)

1989-01-01T23:59:59.000Z

323

Techniques for optically compressing light intensity ranges  

DOE Patents [OSTI]

A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter. 18 figs.

Rushford, M.C.

1989-03-28T23:59:59.000Z

324

A general neural and fuzzy-neural algorithm for natural gas flow prediction in city gate stations  

Science Journals Connector (OSTI)

Abstract This paper presents an approach to predict the transmission of natural gas (NG) in city gate stations (CGSs) by neural and fuzzy neural networks. The proposed approach constructs a model that is based on a primary station data and uses it to predict the NG transmission of a secondary station. Two stations in Qazvin, Iran, are selected as case study for daily prediction. The artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) are optimized for minimum error. Results show that ANFIS is more accurate than ANN and its mean absolute percentage error (MAPE) in primary station (Qazvin no. 2 CGS) is 5.57%. Furthermore, the ANFIS prediction model is used after adaptations for the secondary station (Takestan CGS). The range of NG transmitted volume is different in the secondary station but the results show that the MAPE of prediction in Takestan station is 5.73% which is of the same order as that of the primary station. The effect of errors in the adaptation step for secondary station is investigated. This approach is useful for prediction of transmitted NG in stations with insufficient data but similar consumption and saves the cost of the construction of new prediction model for each station.

Amin Aramesh; Nader Montazerin; Abbas Ahmadi

2014-01-01T23:59:59.000Z

325

Coniferous Forests of the Colorado Front Range  

Science Journals Connector (OSTI)

Forests along the Front Range of Colorado are exposed to elevated concentrations of ozone and other pollutants (see Chapter 3) due to emissions from the urbanized corridor stretching from Colorado Springs to D...

D. A. Graybill; D. L. Peterson…

1992-01-01T23:59:59.000Z

326

Range Separated Brueckner Coupled Cluster Doubles Theory  

E-Print Network [OSTI]

We introduce a range-separation approximation to coupled cluster doubles (CCD) theory that successfully overcomes limitations of regular CCD when applied to the uniform electron gas. We combine the short-range ladder channel with the long-range ring channel in the presence of a Bruckner renormalized one-body interaction and obtain ground-state energies with an accuracy of 0.001 a.u./electron across a wide range of density regimes. Our scheme is particularly useful in the low-density and strongly-correlated regimes, where regular CCD has serious drawbacks. Moreover, we cure the infamous overcorrelation of approaches based on ring diagrams (i.e. the particle-hole random phase approximation). Our energies are further shown to have appropriate basis set and thermodynamic limit convergence, and overall this scheme promises energetic properties for realistic periodic and extended systems which existing methods do not possess.

Shepherd, James J; Scuseria, Gustavo E

2013-01-01T23:59:59.000Z

327

Megatectonics of the Coast Ranges, California  

Science Journals Connector (OSTI)

...folding is shearing well casings and buckling surface pipelines. There are, however, numer...sions and must be a factor in global tectonics. In the Coast Ranges...San Andreas fault has played in global tectonics. In this paper, an...

328

Long Range Campus Development Plan Existing Conditions  

E-Print Network [OSTI]

design solutions and in serving members of the larger community. The Long Range Campus Development Plan environments and year-round recreation opportunities. During the summer season, daylight lasts into the evening

Maxwell, Bruce D.

329

Atmospheric Noises in SLF/ELF Ranges  

Science Journals Connector (OSTI)

In Chap. 8, based on available materials, including public literature and non-public AD reports, and our recent work, synthesized summaries are given. By using the observation data in HF and VLF ranges, the globa...

Prof. Weiyan Pan; Dr. Kai Li

2014-01-01T23:59:59.000Z

330

Laser Range Finder Mapping of Floating Vehicle  

E-Print Network [OSTI]

Using laser range finders as a method of navigation is popular with mobile land robots; however, there has been little research using it with water vehicles. Therefore, this thesis explores the usage and data flow of a ...

Hui, Corinna

2009-01-01T23:59:59.000Z

331

Programmable near-infrared ranging system  

DOE Patents [OSTI]

A high angular resolution ranging system particularly suitable for indoor plications involving mobile robot navigation and collision avoidance uses a programmable array of light emitters that can be sequentially incremented by a microprocessor. A plurality of adjustable level threshold detectors are used in an optical receiver for detecting the threshold level of the light echoes produced when light emitted from one or more of the emitters is reflected by a target or object in the scan path of the ranging system.

Everett, Jr., Hobart R. (San Diego, CA)

1989-01-01T23:59:59.000Z

332

Robust quantum gates and a bus architecture for quantum computing with rare-earth-ion doped crystals  

E-Print Network [OSTI]

We present a composite pulse controlled phase gate which together with a bus architecture improves the feasibility of a recent quantum computing proposal based on rare-earth-ion doped crystals. Our proposed gate operation is tolerant to variations between ions of coupling strengths, pulse lengths, and frequency shifts, and it achieves worst case fidelities above 0.999 with relative variations in coupling strength as high as 10% and frequency shifts up to several percent of the resonant Rabi frequency of the laser used to implement the gate. We outline an experiment to demonstrate the creation and detection of maximally entangled states in the system.

Janus Wesenberg; Klaus Moelmer

2003-01-09T23:59:59.000Z

333

On globally Symmetric Finsler spaces  

E-Print Network [OSTI]

The paper consider the symmetric of Finsler spaces. We give some conditions about globally symmetric Finsler spaces. Then we prove that these spaces can be written as a coset space of Lie group with an invariant Finsler metric. Finally, we prove that such a space must be Berwaldian

Khatamy, R Chavosh

2011-01-01T23:59:59.000Z

334

Simplified Space Conditioning  

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

Simplified Space Conditioning Simplified Space Conditioning Duncan Prahl, RA IBACOS, Inc. Building America Technical Update April 29, 2013 Simplified Space Conditioning Rethinking HVAC Design * Traditional Method - Assume envelope losses dictate the load - Room by room load analysis - Pick Equipment and distribute to meet the load in each room * New Method - Consider how the occupants live in the building - Seriously consider internal gains in both heating and cooling - Consider ventilation strategy - Design system Simplified Space Conditioning If you are: * A production builder * Participating in "above code" programs * Following ACCA Manual RS or ASHRAE 55 * Need to prove "delivering heat to each habitable room" * Concerned about litigation * Play it safe, Use Manual J, S & D and condition every

335

Live From Outer Space  

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

Live from Outer Space: How Cells Influence the Growth of Nanostructures Live from Outer Space: How Cells Influence the Growth of Nanostructures Far above the heads of Earthlings, arrays of single-cell creatures embedded in nanostructures ride on the International Space Station (courtesy of Sandia National Laboratories and the University of New Mexico, NASA, and the U.S. Air Force) to test whether nanostructures whose formations were directed by yeast and other single cells can create more secure homes for their occupants-even in the vacuum and radiation of outer space-than those created by more standard chemical procedures. Cheap, tiny, and very lightweight sensors of chemical or biological agents could be made from long-lived cells that require no upkeep, yet sense and then communicate effectively with each other and their external

336

Astrophysics and Space Instrumentation  

Science Journals Connector (OSTI)

Instrumentation for particle and high-energy photon measurements in space must provide high levels of performance while meeting the severe constraints imposed by flight. Direct measurements are required spanni...

John W. Mitchell; Thomas Hams; Thomas Hams

2012-01-01T23:59:59.000Z

337

Space Flight Requirements  

E-Print Network [OSTI]

Science Glovebox), SpaceDrums (Levitator), EMCS (European Modular Cultivation System), PCDF (Protein MERLIN, HDPCG, PCF, CVDA, VDA2, DCPCG, PCFVG, PCFLST, CRIMM CRIMM Commercial Refrigerator Incubator Growth GLACIER General Laboratory Active Cryogenic ISS Experiment Refrigerator HDPCG High Density

338

Notes on sexuality & space  

E-Print Network [OSTI]

Very little has been written on sexuality in architectural scholarship. Sexuality & Space (Princeton Architectural Press, 1992) contains the proceedings of an eponymous 1990 conference at Princeton University, and was both ...

Jacobson, Samuel Ray

2013-01-01T23:59:59.000Z

339

8/1/14 Google Maps https://www.google.com/maps/dir/Golden+Gate+Bridge,+San+Francisco,+CA+94129/UCSF%2FMission+Bay,+San+Francisco,+CA/@37.7996107,-122.4363906,... 1/2  

E-Print Network [OSTI]

8/1/14 Google Maps https://www.google.com/maps/dir/Golden+Gate+Bridge,+San+Francisco,+CA+94129/UCSF has tolls. Directions from Golden Gate Bridge to UCSF/Mission Bay San Francisco, CA 94129 Golden Gate;8/1/14 Google Maps https://www.google.com/maps/dir/Golden+Gate+Bridge,+San+Francisco,+CA+94129/UCSF%2FMission

Derisi, Joseph

340

Ultra-wideband radios for time-of-flight-ranging and network position estimation  

DOE Patents [OSTI]

This invention provides a novel high-accuracy indoor ranging device that uses ultra-wideband (UWB) RF pulsing with low-power and low-cost electronics. A unique of the present invention is that it exploits multiple measurements in time and space for very accurate ranging. The wideband radio signals utilized herein are particularly suited to ranging in harsh RF environments because they allow signal reconstruction in spite of multipath propagation distortion. Furthermore, the ranging and positioning techniques discussed herein directly address many of the known technical challenges encountered in UWB localization regarding synchronization and sampling. In the method developed, noisy, corrupted signals can be recovered by repeating range measurements across a channel, and the distance measurements are combined from many locations surrounding the target in a way that minimizes the range biases associated to indirect flight paths and through-wall propagation delays.

Hertzog, Claudia A. (Houston, TX); Dowla, Farid U. (Castro Valley, CA); Dallum, Gregory E. (Livermore, CA); Romero, Carlos E. (Livermore, CA)

2011-06-14T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Laser Range Finder Objective: Use a forward pointing laser range finder to  

E-Print Network [OSTI]

Laser Range Finder Objective: Use a forward pointing laser range finder to detect and avoid obstacles. Principle Investigators: Randy Beard, Tim McLain Laser Range Finder Opti-Logic RS400 Laser path, laser detects object. 2. Upon detection, insert cylindrical object into world map and plan path

Wirthlin, Michael J.

342

Range Fuels Biorefinery Groundbreaking | Department of Energy  

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

Range Fuels Biorefinery Groundbreaking Range Fuels Biorefinery Groundbreaking Range Fuels Biorefinery Groundbreaking November 6, 2007 - 5:00pm Addthis Remarks as Prepared for Secretary Bodman Thank you. And let me say how much it means to have my old friend Vinodh here to introduce me. You are a true pioneer in this industry. I also want to thank Mitch for asking me to be here. It's good to see Tom Dorr from the U.S. Department of Agriculture, our partner in so much of the federal government's biomass research and development and deployment efforts. Gov. Perdue, as always, it's great to be in Georgia and to see the progress occurring here under your leadership. I want to reaffirm our support for governors and state legislators who exhibit the kind of leadership you've shown in developing America's new energy future.

343

Extended range radiation dose-rate monitor  

DOE Patents [OSTI]

An extended range dose-rate monitor is provided which utilizes the pulse pileup phenomenon that occurs in conventional counting systems to alter the dynamic response of the system to extend the dose-rate counting range. The current pulses from a solid-state detector generated by radiation events are amplified and shaped prior to applying the pulses to the input of a comparator. The comparator generates one logic pulse for each input pulse which exceeds the comparator reference threshold. These pulses are integrated and applied to a meter calibrated to indicate the measured dose-rate in response to the integrator output. A portion of the output signal from the integrator is fed back to vary the comparator reference threshold in proportion to the output count rate to extend the sensitive dynamic detection range by delaying the asymptotic approach of the integrator output toward full scale as measured by the meter.

Valentine, Kenneth H. (Knoxville, TN)

1988-01-01T23:59:59.000Z

344

Supersymmetric inversion of effective-range expansions  

E-Print Network [OSTI]

A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

Bikashkali Midya; Jérémie Evrard; Sylvain Abramowicz; O. L. Ramírez Suárez; Jean-Marc Sparenberg

2015-01-16T23:59:59.000Z

345

Supersymmetric inversion of effective-range expansions  

E-Print Network [OSTI]

A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

Midya, Bikashkali; Abramowicz, Sylvain; Suárez, O L Ramírez; Sparenberg, Jean-Marc

2015-01-01T23:59:59.000Z

346

Method and apparatus for making absolute range measurements  

DOE Patents [OSTI]

This invention relates to a method and apparatus for making absolute distance or ranging measurements using Fresnel diffraction. The invention employs a source of electromagnetic radiation having a known wavelength or wavelength distribution, which sends a beam of electromagnetic radiation through an object which causes it to be split (hereinafter referred to as a "beamsplitter"), and then to a target. The beam is reflected from the target onto a screen containing an aperture spaced a known distance from the beamsplitter. The aperture is sized so as to produce a Fresnel diffraction pattern. A portion of the beam travels through the aperture to a detector, spaced a known distance from the screen. The detector detects the central intensity of the beam. The distance from the object which causes the beam to be split to the target can then be calculated based upon the known wavelength, aperture radius, beam intensity, and distance from the detector to the screen. Several apparatus embodiments are disclosed for practicing the method embodiments of the present invention.

Allison, Stephen W. (Knoxville, TN); Cates, Michael R. (Oak Ridge, TN); Key, William S. (Knoxville, TN); Sanders, Alvin J. (Knoxville, TN); Earl, Dennis D. (Knoxville, TN)

1999-01-01T23:59:59.000Z

347

Method and apparatus for making absolute range measurements  

DOE Patents [OSTI]

This invention relates to a method and apparatus for making absolute distance or ranging measurements using Fresnel diffraction. The invention employs a source of electromagnetic radiation having a known wavelength or wavelength distribution, which sends a beam of electromagnetic radiation through an object which causes it to be split (hereinafter referred to as a beam splitter''), and then to a target. The beam is reflected from the target onto a screen containing an aperture spaced a known distance from the beam splitter. The aperture is sized so as to produce a Fresnel diffraction pattern. A portion of the beam travels through the aperture to a detector, spaced a known distance from the screen. The detector detects the central intensity of the beam. The distance from the object which causes the beam to be split to the target can then be calculated based upon the known wavelength, aperture radius, beam intensity, and distance from the detector to the screen. Several apparatus embodiments are disclosed for practicing the method embodiments of the present invention. 9 figs.

Allison, S.W.; Cates, M.R.; Key, W.S.; Sanders, A.J.; Earl, D.D.

1999-06-22T23:59:59.000Z

348

Custom Detector Technology LASP satellite instruments include a wide range of technology,  

E-Print Network [OSTI]

Custom Detector Technology LASP satellite instruments include a wide range of technology, including particles, electric fields, and dust particles in space. Low-noise detectors are critical technology for our Extremely low-noise CCDs and intensified CCDs have flown on SDO for observing solar EUV and on AIM

Mojzsis, Stephen J.

349

SOLAR WIND ELECTRIC FIELDS IN THE ION CYCLOTRON FREQUENCY RANGE P. J. Kellogg,1  

E-Print Network [OSTI]

SOLAR WIND ELECTRIC FIELDS IN THE ION CYCLOTRON FREQUENCY RANGE P. J. Kellogg,1 S. D. Bale,2 F. S wind in the region near the ion cyclotron frequency of protons, larger than the force due to magnetic fluctuations. They provide sufficient velocity- space diffusion or heating to counteract conservation

California at Berkeley, University of

350

Hybrid Photonic Hyper-Controlled-Not Gate with the Dipole Induced Transparency in Weak-Coupling Regime  

E-Print Network [OSTI]

We present a hybrid hyper-controlled-not (hyper-CNOT) gate for hyperparallel photonic quantum computing based on both the polarization and spatial-mode degrees of freedom (DOFs) of a two-photon system, which is identical to two CNOT gates operating at the same time on four photons in one DOF. This proposal is implemented with the optical reflection-transmission property of a diamond nitrogen-vacancy center embedded in a photonic crystal cavity coupled to two waveguides, which is suitable for the robust and flexible quantum information processing based on both the spatial-mode and polarization DOFs of photon systems in Purcell regime. With the hybrid hyper-CNOT gate, more quantum logic gate operations can be accomplished with less resources in a definite period of time, and the influence from photonic dissipation and environment noise can be suppressed.

Bao-Cang Ren; Fu-Guo Deng

2014-11-02T23:59:59.000Z

351

E-Print Network 3.0 - atp-gated p2x4 ion Sample Search Results  

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

ion Search Powered by Explorit Topic List Advanced Search Sample search results for: atp-gated p2x4 ion Page: << < 1 2 3 4 5 > >> 1 introduction browse basic search advanced...

352

Vehicle Technologies Office Merit Review 2014: GATE Center for Electric Drive Transportation at the University of Michigan- Dearborn  

Broader source: Energy.gov [DOE]

Presentation given by Regents University of Michigan at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about GATE Center...

353

Abstract----Recently, a novel multi-bit nonvolatile memory based on double gate (DG) MOSFET is  

E-Print Network [OSTI]

and the negative control gate voltages applied for read operation. We used Silvaco Atlas, a 2- D numerical. The quantitative analysis were conducted by Silvaco Atlas, a 2-D numerical device simulator [4]. We read

Lee, Jong Duk

354

Positions in the GluN2C-Containing NMDAR Regulate Alcohol Sensitivity and Ion Channel Gating.  

E-Print Network [OSTI]

??The N-methyl-D-aspartate (NMDA) receptor, a subtype of glutamate-gated ion channel, has been shown to be a major target of ethanol in the central nervous system… (more)

Wu, Man

2014-01-01T23:59:59.000Z

355

ESS 2012 Peer Review - Notrees Wind Storage - Jeff Gates, Duke Energy  

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

Notrees Energy Storage Project Notrees Energy Storage Project Jeff Gates Duke Energy jeff.gates@duke-energy.com Project Objectives * Use energy storage to increase the value and practical application of wind generation * Integrate storage with intermittent renewable energy production * Improve use of power-producing assets by storing energy during non-peak generation periods * Demonstrate benefits of using fast response energy storage to provide ancillary services for grid management * Verify that energy storage solutions can operate within the ERCOT market protocols * Demonstrate ramp control and Energy Storage System * Technology: Advanced lead-acid battery * OEM Partner - Xtreme Power (XP) * 36 MW / 24 MWh output * Modules housed in ~ 6,000 sq. ft. building Project Activities to Date * Site construction began December

356

Effects of spectral entanglement in polarization-entanglement swapping and type-I fusion gates  

Science Journals Connector (OSTI)

We examine how spectral entanglement in polarization-entangled photon states generated from bulk-crystal, spontaneous parametric down-conversion affects the success of entanglement swapping and type-I fusion gates. We quantify the success of the entanglement swapping and fusion gates by calculating the bipartite concurrence and residual tangle, respectively, in terms of the joint spectral probability amplitudes of the initial broad-bandwidth polarization-entangled states. We find that both polarization-entanglement measures depend strongly on the initial spectral entanglement, as well as on the configuration of the independent sources. Specifically, when spectral differences correlate with polarization, the optimal source configuration is different for the two protocols. We conclude that this distinction is founded in how the underlying Bell-state measurement and quantum-erasure techniques respond differently to distinguishing spectral information.

Travis S. Humble and Warren P. Grice

2008-02-11T23:59:59.000Z

357

Practical fast gate rate InGaAs/InP single-photon avalanche photodiodes  

E-Print Network [OSTI]

We present a practical and easy-to-implement method for high-speed near infrared single-photon detection based on InGaAs/InP single-photon avalanche photodiodes (SPADs), combining aspects of both sine gating and self-differencing techniques. At a gating frequency of 921 MHz and temperature of -30 $^{\\circ}$C we achieve: a detection efficiency of 9.3 %, a dark count probability of 2.8$\\times10^{-6}$ ns$^{-1}$, while the afterpulse probability is 1.6$\\times10^{-4}$ ns$^{-1}$, with a 10 ns "count-off time" setting. In principle, the maximum count rate of the SPAD can approach 100 MHz, which can significantly improve the performance for diverse applications.

Jun Zhang; Rob Thew; Claudio Barreiro; Hugo Zbinden

2009-08-16T23:59:59.000Z

358

Double-metal-gate nanocrystalline Si thin film transistors with flexible threshold voltage controllability  

SciTech Connect (OSTI)

We fabricated nano-crystalline Si (nc-Si:H) thin-film transistors (TFTs) with a double-metal-gate structure, which showed a high electron-mobility (?{sub FE}) and adjustable threshold voltages (V{sub th}). The nc-Si:H channel and source/drain (S/D) of the multilayered TFT were deposited at 375?°C by inductively coupled plasma chemical vapor deposition. The low grain-boundary defect density of the channel layer is responsible for the high ?{sub FE} of 370 cm{sup 2}/V-s, a steep subthreshold slope of 90?mV/decade, and a low V{sub th} of ?0.64?V. When biased with the double-gate driving mode, the device shows a tunable V{sub th} value extending from ?1?V up to 2.7?V.

Chiou, Uio-Pu; Pan, Fu-Ming, E-mail: fmpan@faculty.nctu.edu.tw [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China)] [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China); Shieh, Jia-Min, E-mail: jmshieh@narlabs.org.tw, E-mail: jmshieh@faculty.nctu.edu.tw [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China) [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China); Departments of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan (China); Yang, Chih-Chao [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China)] [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China); Huang, Wen-Hsien [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China) [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China); National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China); Kao, Yo-Tsung [Departments of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan (China)] [Departments of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan (China)

2013-11-11T23:59:59.000Z

359

2012 ARPA-E Energy Innovation Summit: Fireside Chat with Steven Chu and Bill Gates  

ScienceCinema (OSTI)

The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. This video captures a session called 'Fireside Chat' that featured Steven Chu, the Secretary of Energy, and Bill Gates, Chairman of Microsoft Corporation. The session is moderated by John Podesta, Chair of the Center for American Progress. Energy Secretary Steven Chu and Microsoft Founder and Chairman Bill Gates exchanged ideas about how small businesses and innovators can overcome the challenges that face many startups.

Chu, Steven (U.S. Department of Energy Secretary); Gates, Bill (Microsoft, Chairman); Podesta, John (Center for American Progress, Chair and Counselor)

2012-03-21T23:59:59.000Z

360

Gated x-ray framing camera image of a direct-drive cylindrical implosion  

SciTech Connect (OSTI)

Gated X-ray images of laser-driven implosions can provide movies of typically 16 frames with {approximately} 80 ps time resolution and 10 {micro}m spatial resolution. Cylindrical implosions allow study of convergent hydrodynamics but with excellent diagnostic access down the axis of the cylinder. This example from a recent cylindrical implosion campaign on the OMEGA laser provides quantitative data on the growth of ablative Rayleigh-Taylor instabilities in convergent geometry.

Voss, S.A.; Barnes, C.W.; Oertel, J.A.; Watt, R.G. [Los Alamos National Lab., NM (United States)] [Los Alamos National Lab., NM (United States); Boehly, T.R.; Bradley, D.K.; Knauer, J.P.; Pien, G. [Univ. of Rochester, NY (United States). Lab. for Laser Energetics] [Univ. of Rochester, NY (United States). Lab. for Laser Energetics

1999-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Highly enhanced avalanche probability using sinusoidally-gated silicon avalanche photodiode  

SciTech Connect (OSTI)

We report on visible light single photon detection using a sinusoidally-gated silicon avalanche photodiode. Detection efficiency of 70.6% was achieved at a wavelength of 520?nm when an electrically cooled silicon avalanche photodiode with a quantum efficiency of 72.4% was used, which implies that a photo-excited single charge carrier in a silicon avalanche photodiode can trigger a detectable avalanche (charge) signal with a probability of 97.6%.

Suzuki, Shingo; Namekata, Naoto, E-mail: nnao@phys.cst.nihon-u.ac.jp; Inoue, Shuichiro [Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8308 (Japan); Tsujino, Kenji [Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666 (Japan)

2014-01-27T23:59:59.000Z

362

Modeling the current behavior of the digital BiCMOS gate  

E-Print Network [OSTI]

CMOS gate showing the pull-up and pull-down sections 6 Schematics of the pull-up section Pull-up equivalent circuit model . Equivalent circuit model 10 Simplified equivalent circuit model Equivalent circuit model neglecting ATF Collector current... with ATF effect vs without ATF effect 14 Modified circuit model 16 10 Comparison of this work versus SPICE simulation Typical collector current response 17 12 13 Equivalent circuit for 0 ? t0 Equivalent circuit after t0 21 14 Base current...

Tang, Zhilong

1995-01-01T23:59:59.000Z

363

Case Studies on Variation Tolerant and Low Power Design Using Planar Asymmetric Double Gate Transistor  

E-Print Network [OSTI]

new circuit topology for IGFET, which on average shows 33.8% lower leakage and 34.9% lower area at the cost of 2.8% increase in total active mode power, for basic logic gates. Finally, we showed a technique for reducing leakage of minimum sized... ????????????????????????????????????????????????? 5 III.1 Power-delay product for FO4 inverter ????????????????????????????????????? 12 III.2 Power-delay product for 51 Stage ring oscillator ??????????????????????????? 12 IV.1 Delay distribution histogram...

Singh, Amrinder

2011-10-21T23:59:59.000Z

364

Gravitomagnetism and the Earth-Mercury range  

E-Print Network [OSTI]

We numerically work out the impact of the general relativistic Lense-Thirring effect on the Earth-Mercury range caused by the gravitomagnetic field of the rotating Sun. The peak-to peak nominal amplitude of the resulting time-varying signal amounts to 1.75 10^1 m over a temporal interval 2 yr. Future interplanetary laser ranging facilities should reach a cm-level in ranging to Mercury over comparable timescales; for example, the BepiColombo mission, to be launched in 2014, should reach a 4.5 - 10 cm level over 1 - 8 yr. We looked also at other Newtonian (solar quadrupole mass moment, ring of the minor asteroids, Ceres, Pallas, Vesta, Trans-Neptunian Objects) and post-Newtonian (gravitoelectric Schwarzschild solar field) dynamical effects on the Earth-Mercury range. They act as sources of systematic errors for the Lense-Thirring signal which, in turn, if not properly modeled, may bias the recovery of some key parameters of such other dynamical features of motion. Their nominal peak-to-peak amplitudes are as large as 4 10^5 m (Schwarzschild), 3 10^2 m (Sun's quadrupole), 8 10^1 m (Ceres, Pallas, Vesta), 4 m (ring of minor asteroids), 8 10^-1 m (Trans-Neptunian Objects). Their temporal patterns are different with respect to that of the gravitomagnetic signal.

Lorenzo Iorio

2011-08-29T23:59:59.000Z

365

Signal Fluctuations in the BIFI Range  

Science Journals Connector (OSTI)

Short?term and long?term fluctuation studies have been made in the BIFI Shallow X Water Acoustic Range which is 37 kyd in length. It is shown how time?smear analysis may be used to predict the extent of short?term signal fluctuation by taking into account the energy content of the “front” and “tail” of the received signal. The method is applied to an actual received signal with good results. Long?term fluctuation such as that due to tide is considered in terms of normal mode theory using the results of the time smear analysis to provide an estimate of the relative strengths of the modes. When applied to the BIFI range this method predicts that tidal effects will cause negligible fluctuations in the received signal due to the absence of modes other than the fundamental at this large range. This prediction was verified by experiment. At shorter ranges the interaction of several modes will cause relatively large fluctuations in the signal as the water depth changes during the tidal cycle.

W. G. Kanabis; B. Sussman

1972-01-01T23:59:59.000Z

366

Compact range for variable-zone measurements  

DOE Patents [OSTI]

A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector.

Burnside, Walter D. (Columbus, OH); Rudduck, Roger C. (Columbus, OH); Yu, Jiunn S. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

367

Electrical Engineering Technology (EET) LONG RANGE SCHEDULE  

E-Print Network [OSTI]

and Machinery C T C T EET 365W Electrical Power & Machinery Laboratory C C, V V C C, V V EET 370T Energy=Virtual Laboratory, W=Web based This schedule is tentative. All Course offerings are subject to minimum enrollmentElectrical Engineering Technology (EET) LONG RANGE SCHEDULE Course Number and Name Fall 2010 Spr

368

Resonant invisibility with finite range interacting fermions  

E-Print Network [OSTI]

We study the eigenstates of two opposite spin fermions on a one-dimensional lattice with finite range interaction. The eigenstates are projected onto the set of Fock eigenstates of the noninteracting case. We find antiresonances for symmetric eigenstates, which eliminate the interaction between two symmetric Fock states when satisfying a corresponding selection rule.

Jean-Pierre Nguenang; Sergej Flach; Ramaz Khomeriki

2011-06-22T23:59:59.000Z

369

High-Dynamic-Range Imaging for artists  

Science Journals Connector (OSTI)

An introduction and overview of the practical applications and uses of high-dynamic-range imaging (HDRI) from a production point of view. The course begins with a brief overview of HDRI and pre-production, production, and post-production techniques. ...

Kirt Witte

2009-12-01T23:59:59.000Z

370

6, 1018310216, 2006 Long-range transport  

E-Print Network [OSTI]

ACPD 6, 10183­10216, 2006 Long-range transport of Asian dust and air pollutants to Taiwan C.-Y. Lin and air pollutants to Taiwan: observed evidence and model simulation C.-Y. Lin 1 , Z. Wang 2 , W.-N. Chen and air pollutants to Taiwan C.-Y. Lin et al. Title Page Abstract Introduction Conclusions References

Boyer, Edmond

371

Compact range for variable-zone measurements  

DOE Patents [OSTI]

A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector. 2 figs.

Burnside, W.D.; Rudduck, R.C.; Yu, J.S.

1987-02-27T23:59:59.000Z

372

Tracking Dynamic Boundary Fronts using Range Sensors  

E-Print Network [OSTI]

are being deployed for real-time monitoring applica- tions, such as detecting leakage of hazardous material location whereas in the latter approach a sensor finds approximate distance to a remote location where degrees and gather reflec- tivity and wind velocity information. Lidars (LIght Detection and Ranging

Ramamritham, Krithi

373

ESS 2012 Peer Review - Engineered Gate Oxides for Wide Bandgap Semiconductor MOSFETs - Jon Ihlefeld, SNL  

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

-5 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 -6 -4 -2 0 2 4 6 8 10 |J Leakage | (A-cm -2 ) Semiconductor Voltage (V) Engineered Gate Oxides for Wide Bandgap S emiconductor M OSFETs* Jon I hlefeld, M ichael B rumbach, S andeepan D asGupta, and Stanley AtciEy Sandia NaGonal Laboratories *Sponsored b y t he U .S. D epartment o f E nergy's O ffice o f E lectricity E nergy S torage Systems P rogram jihlefe@sandia.gov, 505---844---3162; s atciE@sandia.gov, 505---284---2701 Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. SAND No. 2011-XXXXP Cooling Power electronics Energy storage Energy storage -V gate Low defect oxide Metal gate Wide

374

Optimum performance investigation of LYSO crystal pixels: A comparison between GATE simulation and experimental data  

E-Print Network [OSTI]

Monte Carlo simulation plays an important role in the study of time of flight (TOF) positron emission tomography (PET) prototype. As it can incorporate accurate physical modeling of scintillation detection process, from scintillation light generation, the transport of scintillation photos through the crystal(s), to the conversion of these photons into electronic signals. The Geant4 based simulation software GATE can provide a user-friendly simulation platform containing the properties needed. In this work, we developed a dedicated module in GATE simulation tool. Using this module, we simulated the light yield, energy resolution, time resolution of LYSO pixels with the same cross-section ($4\\times4 mm^{2}$) of different lengths: 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, coupled to a PMT. The experiments were performed to validate the GATE simulation results. The results indicate that the best time resolution (484.0$\\pm$67.5 ps) and energy resolution (13.3$\\pm$0.4 %) could be produced by using pixel with length of 5 mm...

Chen, Ze; Chen, Jin-Da; Zhang, Xiu-Ling; Sun, Zhi-Yu; Huang, Wen-Xue; Wang, Jian-Song; Guo, Zhong-Yan; Xiao, Guo-Qing

2013-01-01T23:59:59.000Z

375

Optimum performance investigation of LYSO crystal pixels: A comparison between GATE simulation and experimental data  

E-Print Network [OSTI]

Monte Carlo simulation plays an important role in the study of time of flight (TOF) positron emission tomography (PET) prototype. As it can incorporate accurate physical modeling of scintillation detection process, from scintillation light generation, the transport of scintillation photos through the crystal(s), to the conversion of these photons into electronic signals. The Geant4 based simulation software GATE can provide a user-friendly simulation platform containing the properties needed. In this work, we developed a dedicated module in GATE simulation tool. Using this module, we simulated the light yield, energy resolution, time resolution of LYSO pixels with the same cross-section ($4\\times4 mm^{2}$) of different lengths: 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, coupled to a PMT. The experiments were performed to validate the GATE simulation results. The results indicate that the best time resolution (484.0$\\pm$67.5 ps) and energy resolution (13.3$\\pm$0.4 %) could be produced by using pixel with length of 5 mm. The module can also be applied to other cases for precisely simulating optical photons propagating in scintillators.

Ze Chen; Zheng-Guo Hu; Jin-Da Chen; Xiu-Ling Zhang; Zhi-Yu Sun; Wen-Xue Huang; Jian-Song Wang; Zhong-Yan Guo; Guo-Qing Xiao

2013-09-15T23:59:59.000Z

376

Poly(methyl methacrylate) as a self-assembled gate dielectric for graphene field-effect transistors  

SciTech Connect (OSTI)

We investigate poly(methyl methacrylate) (PMMA) as a low thermal budget organic gate dielectric for graphene field effect-transistors (GFETs) based on a simple process flow. We show that high temperature baking steps above the glass transition temperature (?130?°C) can leave a self-assembled, thin PMMA film on graphene, where we get a gate dielectric almost for “free” without additional atomic layer deposition type steps. Electrical characterization of GFETs with PMMA as a gate dielectric yields a dielectric constant of k?=?3.0. GFETs with thinner PMMA dielectrics have a lower dielectric constant due to decreased polarization arising from neutralization of dipoles and charged carriers as baking temperatures increase. The leakage through PMMA gate dielectric increases with decreasing dielectric thickness and increasing electric field. Unlike conventional high-k gate dielectrics, such low-k organic gate dielectrics are potentially attractive for devices such as the proposed Bilayer pseudoSpin Field-Effect Transistor or flexible high speed graphene electronics.

Sanne, A.; Movva, H. C. P.; Kang, S.; McClellan, C.; Corbet, C. M.; Banerjee, S. K. [Microelectronics Research Center, University of Texas, Austin, Texas 78758 (United States)

2014-02-24T23:59:59.000Z

377

Design and optimisation of quantum logic circuits for a three-qubit Deutsch-Jozsa algorithm implemented with optically-controlled, solid-state quantum logic gates  

E-Print Network [OSTI]

We analyse the design and optimisation of quantum logic circuits suitable for the experimental demonstration of a three-qubit quantum computation prototype based on optically-controlled, solid-state quantum logic gates. In these gates, the interaction between two qubits carried by the electron-spin of donors is mediated by the optical excitation of a control particle placed in their proximity. First, we use a geometrical approach for analysing the entangling characteristics of these quantum gates. Then, using a genetic programming algorithm, we develop circuits for the refined Deutsch-Jozsa algorithm investigating different strategies for obtaining short total computational times. We test two separate approaches based on using different sets of entangling gates with the shortest possible gate computation time which, however, does not introduce leakage of quantum information to the control particles. The first set exploits fast approximations of controlled-phase gates as entangling gates, while the other one arbitrary entangling gates with a shorter gate computation time compared to the first set. We have identified circuits with consistently shorter total computation times when using controlled-phase gates.

A. Del Duce; S. Savory; P. Bayvel

2009-10-09T23:59:59.000Z

378

Robots in Space: U.S. Missions and Technology Requirementsinto the Next Century  

Science Journals Connector (OSTI)

The Telerobotics Program of the National Aeronautics and Space Administration (NASA) Office of Space Science is developing innovative telerobotics technologies to enable or support a wide range of space missions over the next decade and beyond. These technologies ... Keywords: dexterous manipulation, in-orbit servicing, planetary exploration, robot autonomy, robotics, rovers, sample acquisition, sample return

Charles R. Weisbin; David B. Lavery; Guillermo Rodriguez

1997-05-01T23:59:59.000Z

379

Earth, Space Sciences  

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

Earth, Space Sciences Earth, Space Sciences /science-innovation/_assets/images/icon-science.jpg Earth, Space Sciences National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Climate, Ocean and Sea Ice Modeling (COSIM)» Earth A team of scientists is working to understand how local changes in hydrology might bring about major changes to the Arctic landscape, including the possibility of a large-scale carbon release from thawing permafrost. Bryan Travis, an expert in fluid dynamics, is author of the Mars global hydrology numerical computer model, or MAGHNUM, used for calculating heat and fluid transport phenomena. (MAGHNUM was previously

380

Fun in Space  

Science Journals Connector (OSTI)

This after-dinner address attempts to point up in a simplified way the amusing as well as some of the more serious problems which arise in connection with flight into space. Figures are given to challenge some of the more fanciful claims about the value of the moon as a military base noting the very large amounts of fuel required to take weapons up to the moon and then to return them to the earth. Some of the important research problems in physics and astronomy which can be carried out by the use of space vehicles are enumerated. As examples of a space science enterprise the results of the magnetic field measurements by the Pioneer V package are summarized. The impractibility of using the moon and other planets as colonies for the earth's excess population is also demonstrated.

Lee A. DuBridge

1960-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Respiration Induced Heart Motion and Indications of Gated Delivery for Left-Sided Breast Irradiation  

SciTech Connect (OSTI)

Purpose: To investigate respiration-induced heart motion for left-sided breast irradiation using a four-dimensional computed tomography (4DCT) technique and to determine novel indications to assess heart motion and identify breast patients who may benefit from a gated treatment. Methods and Materials: Images of 4DCT acquired during free breathing for 20 left-sided breast cancer patients, who underwent whole breast irradiation with or without regional nodal irradiation, were analyzed retrospectively. Dose distributions were reconstructed in the phases of 0%, 20%, and 50%. The intrafractional heart displacement was measured in three selected transverse CT slices using D{sub LAD} (the distance from left ascending aorta to a fixed line [connecting middle point of sternum and the body] drawn on each slice) and maximum heart depth (MHD, the distance of the forefront of the heart to the line). Linear regression analysis was used to correlate these indices with mean heart dose and heart dose volume at different breathing phases. Results: Respiration-induced heart displacement resulted in observable variations in dose delivered to the heart. During a normal free-breathing cycle, heart-induced motion D{sub LAD} and MHD changed up to 9 and 11 mm respectively, resulting in up to 38% and 39% increases of mean doses and V{sub 25.2} for the heart. MHD and D{sub LAD} were positively correlated with mean heart dose and heart dose volume. Respiratory-adapted gated treatment may better spare heart and ipsilateral-lung compared with the conventional non-gated plan in a subset of patients with large D{sub LAD} or MHD variations. Conclusion: Proposed indices offer novel assessment of heart displacement based on 4DCT images. MHD and D{sub LAD} can be used independently or jointly as selection criteria for respiratory gating procedure before treatment planning. Patients with great intrafractional MHD variations or tumor(s) close to the diaphragm may particularly benefit from the gated treatment.

Qi, X. Sharon, E-mail: xiangrong.qi@ucdenver.edu [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Hu, Angela [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Wang Kai [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States); Newman, Francis [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Crosby, Marcus; Hu Bin; White, Julia; Li, X. Allen [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States)

2012-04-01T23:59:59.000Z

382

Rangely, Colorado: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Rangely, Colorado: Energy Resources Rangely, Colorado: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.0874759°, -108.8048292° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.0874759,"lon":-108.8048292,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

383

Front Range Energy LLC | Open Energy Information  

Open Energy Info (EERE)

Energy LLC Energy LLC Jump to: navigation, search Logo: Front Range Energy LLC Name Front Range Energy LLC Address 31375 Great Western Dr Place Windsor, Colorado Zip 80550 Sector Biofuels Product Ethanol producer Website http://www.frontrangeenergy.co Coordinates 40.4605154°, -104.8565272° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.4605154,"lon":-104.8565272,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

384

Range of High-Energy Interactions  

Science Journals Connector (OSTI)

The range of high-energy nucleon-nucleon interactions is examined in a simple single inelastic channel model which consists of the production of two spinless isobars. An almost transparent, purely absorbing optical approximation is made, in which case both the inelastic and elastic angular distributions are sensitive to the variation of the absorption coefficient ?l with angular momentum l. Unlike the case of the strong absorber, the inelastic and elastic interactions are described by different effective ranges. Two examples are given, one in which the inelastic channel has an angular distribution characteristic of a one-pion exchange process and the second in which it is characteristic of a "vacuum Regge pole" exchange.

Freda Salzman

1963-08-01T23:59:59.000Z

385

PREDICTING RANGES FOR PULSARS' BRAKING INDICES  

SciTech Connect (OSTI)

The theoretical determination of braking indices of pulsars is still an open problem. In this paper we report results of a study concerning such determination based on a modification of the canonical model, which admits that pulsars are rotating magnetic dipoles, and on data from the seven pulsars with known braking indices. In order to test the modified model, we predict ranges for the braking indices of other pulsars.

Magalhaes, Nadja S.; Miranda, Thaysa A. [Federal University of Sao Paulo, DCET, Rua Sao Nicolau 210, Diadema, SP 09913-030 (Brazil); Frajuca, Carlos, E-mail: nadjasm@gmail.com [Federal Institute of Education, Science and Technology of Sao Paulo, R. Pedro Vicente 625, Sao Paulo, SP 01109-010 (Brazil)

2012-08-10T23:59:59.000Z

386

Nonlinear classification of Banach spaces  

E-Print Network [OSTI]

Hilbert space when p> 2. We then build upon the method of this proof to show that a quasi-Banach space coarsely embeds into a Hilbert space if and only if it is isomorphic to a subspace of L0(??) for some probability space (?,B,??)....

Randrianarivony, Nirina Lovasoa

2005-11-01T23:59:59.000Z

387

2011 Confined Space Program Update  

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

Confined Space Entry Program Update Confined Space Entry Program Update IMPORTANT: After reading this document, click the "Get Course Credit" link at the bottom of the page. You will then log in to the EHS training system using your LDAP to get course credit. LBNL's confined space entry program was substantially improved this year. Several new features have been included which improve overall safety for Confined Space Entrants and better align the confined space entry program with the OSHA requirements. As an Activity Lead, Confined Space Entrant or Entry Supervisor, you should be aware of the following: We improved the procedures for safely working in confined spaces. Please review the new Chapter 34 in Publication 3000. Additionally, we have a new planning tool known as the confined space inventory which is a registry of LBNL's confined spaces, their potential hazards and safe work procedures unique to a particular confined space.

388

Space science and policy  

Science Journals Connector (OSTI)

......research-article Features Space science and policy David Southwood David Southwood is a Senior...Moreover, the ESA industrial return policy produced its own problems, as I'll...science in Europe. The industrial return policy is at the heart of ESA and builds in a......

David Southwood

2014-12-01T23:59:59.000Z

389

Table 1 Highest tides (tide ranges) of the global ocean Country Site Tide range (m)  

E-Print Network [OSTI]

and Climate. Indian Ocean Equatorial Currents. Internal Waves. Island Wakes. Langmuir Circula- tion and Instability. Mesoscale Eddies. Open Ocean Convection. Paci\\c Ocean Equatorial Currents. TurbulenceTable 1 Highest tides (tide ranges) of the global ocean Country Site Tide range (m) Canada Bay

Gorban, Alexander N.

390

Implementation of controlled phase shift gates and Collins version of Deutsch-Jozsa algorithm on a quadrupolar spin-7/2 nucleus using non-adiabatic geometric phases  

E-Print Network [OSTI]

In this work Controlled phase shift gates are implemented on a qaudrupolar system, by using non-adiabatic geometric phases. A general procedure is given, for implementing controlled phase shift gates in an 'N' level system. The utility of such controlled phase shift gates, is demonstrated here by implementing 3-qubit Deutsch-Jozsa algorithm on a 7/2 quadrupolar nucleus oriented in a liquid crystal matrix.

T. Gopinath; Anil Kumar

2009-09-22T23:59:59.000Z

391

Patient radiation dose in prospectively gated axial CT coronary angiography and retrospectively gated helical technique with a 320-detector row CT scanner  

SciTech Connect (OSTI)

Purpose: The aim of this study was to evaluate radiation dose to patients undergoing computed tomography coronary angiography (CTCA) for prospectively gated axial (PGA) technique and retrospectively gated helical (RGH) technique. Methods: Radiation doses were measured for a 320-detector row CT scanner (Toshiba Aquilion ONE) using small sized silicon-photodiode dosimeters, which were implanted at various tissue and organ positions within an anthropomorphic phantom for a standard Japanese adult male. Output signals from photodiode dosimeters were read out on a personal computer, from which organ and effective doses were computed according to guidelines published in the International Commission on Radiological Protection Publication 103. Results: Organs that received high doses were breast, followed by lung, esophagus, and liver. Breast doses obtained with PGA technique and a phase window width of 16% at a simulated heart rate of 60 beats per minute were 13 mGy compared to 53 mGy with RGH technique using electrocardiographically dependent dose modulation at the same phase window width as that in PGA technique. Effective doses obtained in this case were 4.7 and 20 mSv for the PGA and RGH techniques, respectively. Conversion factors of dose length product to the effective dose in PGA and RGH were 0.022 and 0.025 mSv mGy{sup -1} cm{sup -1} with a scan length of 140 mm. Conclusions: CTCA performed with PGA technique provided a substantial effective dose reduction, i.e., 70%-76%, compared to RGH technique using the dose modulation at the same phase windows as those in PGA technique. Though radiation doses in CTCA with RGH technique were the same level as, or some higher than, those in conventional coronary angiography (CCA), the use of PGA technique reduced organ and effective doses to levels less than CCA except for breast dose.

Seguchi, Shigenobu; Aoyama, Takahiko; Koyama, Shuji; Fujii, Keisuke; Yamauchi-Kawaura, Chiyo [Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan) and Department of Medical Technology, Nagoya Daini Red Cross Hospital, Myouken-chou, Showa-ku, Nagoya 466-8650 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan); Section of Radiological Protection, National Institute of Radiological Sciences, Anagawa, Inage-ku, Chiba 263-8555 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan)

2010-11-15T23:59:59.000Z

392

APS Long Range Operations Schedule FY2010  

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

10) 10) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2009-3 2010-1 2010-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

393

APS Long Range Operations Schedule FY2009  

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

09) 09) Alternate Formats: iCal | Excel | PDF APS Long Range Operation Schedule (FY2009) 2008-3 2009-1 2009-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

394

Texas Range Plants Poisonous to Livestock.  

E-Print Network [OSTI]

. SYMPTOMS. Animals poisoned by guajillo appear bright and alert and have a good appetite but show varying degrees of muscular incoordi- nation. The rear legs are most commonly affected and a stilted gait, stumbling and falling and an apparent lateral... to the ground each year, Figure 9. Growth on Texas range areas starts in early spring and flowering begins in late summer. Reproduction is by seed following fall, winter and early spring rains. ( &ring tlhe spring but may appear at any time Figure 9...

Sperry, Omer Edison

1955-01-01T23:59:59.000Z

395

Tonopah Test Range 2030 Meeting Summary Report  

SciTech Connect (OSTI)

Corrective Action Sites (CASs) and Corrective Action Units (CAUs) at the Tonopah Test Range (TTR) may be placed into three categories: Closed, Closed in Place, or Closure in Progress. CASs and CAUs where contaminants were either not detected or were cleaned up to within regulatory action levels are summarized. CASs and CAUs where contaminants and/or waste have been closed in place are summarized. There is also a table that summarizes the contaminant that has been closed at each site, if land-use restrictions are present, and if post-closure inspections are required.

NSTec Environmental Restoration

2009-04-01T23:59:59.000Z

396

Lunar laser ranging: the millimeter challenge  

Science Journals Connector (OSTI)

Lunar laser ranging has provided many of the best tests of gravitation since the first Apollo astronauts landed on the Moon. The march to higher precision continues to this day, now entering the millimeter regime, and promising continued improvement in scientific results. This review introduces key aspects of the technique, details the motivations, observables, and results for a variety of science objectives, summarizes the current state of the art, highlights new developments in the field, describes the modeling challenges, and looks to the future of the enterprise.

T W Murphy

2013-01-01T23:59:59.000Z

397

Optical range measurement system: principles and applications  

E-Print Network [OSTI]

modulated infrared beam from a LED to a targeted vehicle and receiving that being reflected, the relative distance between the host and target can be determined by the ORMS. There are basically two distinctive types of ORMS's. 1. Phase Shift ORMS... of the road, b. a vehicle parked on the shoulder of the highway, c. other targets in the scene within the effective range of the ranger. 14 A LED display could also be arranged to warn the driver, but this does not seem to be necessary. The driver may...

Roan, Tian-Ming Philip

1992-01-01T23:59:59.000Z

398

EXCEPTED SERVICE (EJ & EK) PAY RANGES  

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

EXCEPTED SERVICE (EJ & EK) PAY RANGES EXCEPTED SERVICE (EJ & EK) PAY RANGES Eff. 01/03/2010 Pay Table (***Excludes applicable Locality Pay) Grade/Band Minimum Maximum GS Grade/Step Equivalent 01 $27,431 $47,103 5/1 to 9/5 02 $41,563 $68,310 9/1 to 12/5 03 $60,274 $95,989 12/1 to 14/5 04 $84,697 $133,403* 14/1 to 103% of 15/10 05 $145,700** $165,300 EX-V to EX-III *Change to maximum pay rate per DOE O 329.1 effective 03/30/2012. **Change to minimum pay rate per DOE O 329.1 effective 03/30/2012. ***Calculating salary to include Locality Pay: Example: An employee is selected for an EJ/EK position in the Washington, D.C. Metropolitan Area which has a locality payment rate of 24.22% (locality rate for 2011) Step One: Convert locality payment percent to a decimal - 1.2422;

399

APS Long Range Schedule FY1996  

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

Long Range Commissioning Schedule for FY1996 Long Range Commissioning Schedule for FY1996 Date First Shift 0:00-8:00 Second Shift 8:00-16:00 Third Shift 16:00-24:00 3/15/96 SR Studies 1-ID-A Shielding Verification SR Studies 3/23/96 SR Studies 3-ID-A , 2-ID-A , 3-ID-B Shielding Verifications User Beam 3/24/96 User Beam User Beam User Beam 3/25/96 User Beam 19-ID-A Shielding Verification User Beam 3/26/96 User Beam 2-ID-A , 12-BM-A Shielding Verifications User Beam 3/27/96 User Beam 5-BM-A Shielding Verification User Beam 3/28/96 User Beam 19-ID-C Shielding Verification User Beam until 20:00 3/29/96 SR Studies SR Studies SR Studies 3/30/96 SR Studies SR Studies SR Studies 3/31/96 SR Studies SR Studies SR Studies 4/1/96 SR Studies SR Studies SR Studies 4/2/96 SR Studies 5-BM-B Shielding Verification User Beam

400

Hacking Spaces: Place as Interface  

Science Journals Connector (OSTI)

In this article, we analyze the complex rationales—both transparent to us and, at times, made visible—underneath the instructional spaces in which we work and teach. To do so, we first situate space analysis in the larger, national conversations about instructional spaces and then through the work of computers and writing scholars. We conclude with an analysis of instructional spaces at our institution. These are spaces specific to our locale, but spaces we think are quite common at most institutions of higher education. Perhaps more importantly, we situate this space analysis on issues these spaces pose—issues of restricted movement, impaired ability to collaborate, sensory disruption, limited leadership ability, and functional/material constraints. We attempt to return to the roots of hacking and to situate hacking as a particular tool for negotiating and, at times, disrupting the assumptions built under, within, and across instructional spaces.

Douglas M. Walls; Scott Schopieray; Dànielle Nicole DeVoss

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "range gate spacing" 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

Propagators in Lagrangian space  

SciTech Connect (OSTI)

It has been found recently that propagators, e.g. the cross correlation spectra of the cosmic fields with the initial density field, decay exponentially at large k in an Eulerian description of the dynamics. We explore here similar quantities defined for a Lagrangian space description. We find that propagators in Lagrangian space do not exhibit the same properties: they are found not to be monotonic functions of time, and to track back the linear growth rate at late time (but with a renormalized amplitude). These results have been obtained with a novel method which we describe alongside. It allows the formal resummation of the same set of diagrams as those that led to the known results in Eulerian space. We provide a tentative explanation for the marked differences seen between the Eulerian and the Lagrangian cases, and we point out the role played by the vorticity degrees of freedom that are specific to the Lagrangian formalism. This provides us with new insights into the late-time behavior of the propagators.

Bernardeau, Francis; Valageas, Patrick [Institut de Physique Theorique, CEA/DSM/IPhT, Unite de recherche associee au CNRS, CEA/Saclay, 91191 Gif-sur-Yvette cedex, France and Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8 (Canada); Service de Physique Theorique, CEA/DSM/SPhT, Unite de recherche associee au CNRS, CEA/Saclay, 91191 Gif-sur-Yvette cedex (France)

2008-10-15T23:59:59.000Z

402

National Aeronautics and Space Administration Space Launch System  

E-Print Network [OSTI]

was previously designated the space shuttle main engine and is built by Aerojet Rocketdyne of Sacramento, Calif

Waliser, Duane E.

403

Scannerless loss modulated flash color range imaging  

DOE Patents [OSTI]

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2008-09-02T23:59:59.000Z

404

Scannerless loss modulated flash color range imaging  

DOE Patents [OSTI]

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2009-02-24T23:59:59.000Z

405

Analytical expressions for the gate utilization factors of passive multiplicity counters including signal build-up  

SciTech Connect (OSTI)

In the realm of nuclear safeguards, passive neutron multiplicity counting using shift register pulse train analysis to nondestructively quantify Pu in product materials is a familiar and widely applied technique. The approach most commonly taken is to construct a neutron detector consisting of {sup 3}He filled cylindrical proportional counters embedded in a high density polyethylene moderator. Fast neutrons from the item enter the moderator and are quickly slowed down, on timescales of the order of 1-2 {micro}s, creating a thermal population which then persists typically for several 10's {micro}s and is sampled by the {sup 3}He detectors. Because the initial transient is of comparatively short duration it has been traditional to treat it as instantaneous and furthermore to approximate the subsequent capture time distribution as exponential in shape. With these approximations simple expressions for the various Gate Utilization Factors (GUFs) can be obtained. These factors represent the proportion of time correlated events i.e. Doubles and Triples signal present in the pulse train that is detected by the coincidence gate structure chosen (predelay and gate width settings of the multiplicity shift register). More complicated expressions can be derived by generalizing the capture time distribution to multiple time components or harmonics typically present in real systems. When it comes to applying passive neutron multiplicity methods to extremely intense (i.e. high emission rate and highly multiplying) neutron sources there is a drive to use detector types with very fast response characteristics in order to cope with the high rates. In addition to short pulse width, detectors with a short capture time profile are also desirable so that a short coincidence gate width can be set in order to reduce the chance or Accidental coincidence signal. In extreme cases, such as might be realized using boron loaded scintillators, the dieaway time may be so short that the build-up (thermalization transient) within the detector cannot be ignored. Another example where signal build-up might be observed is when a {sup 3}He based system is used to track the evolution of the time correlated signal created by a higher multiplying item within a reflective configuration such as the measurement of a spent fuel assembly. In this work we develop expressions for the GUFs which include signal build-up.

Croft, Stephen [Los Alamos National Laboratory; Evans, Louise G [Los Alamos National Laboratory; Schear, Melissa A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

406

Universal conductance fluctuations in electrolyte-gated SrTiO{sub 3} nanostructures  

SciTech Connect (OSTI)

We report low-temperature magnetoconductance measurements of a patterned two-dimensional electron system at the surface of strontium titanate, gated by an ionic liquid electrolyte. We observe universal conductance fluctuations, a signature of phase-coherent transport in mesoscopic devices. From the universal conductance fluctuations, we extract an electron dephasing rate linear in temperature, characteristic of electron-electron interaction in a disordered conductor. The dephasing rate has a temperature-independent offset, which could possibly be explained by the presence of unscreened local magnetic moments in the sample.

Stanwyck, Sam W. [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States)] [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Gallagher, P.; Williams, J. R.; Goldhaber-Gordon, David [Department of Physics, Stanford University, Stanford, California 94305 (United States)] [Department of Physics, Stanford University, Stanford, California 94305 (United States)

2013-11-18T23:59:59.000Z

407

National Aeronautics and Space Administration International Space Station  

E-Print Network [OSTI]

and technological endeavor ever undertaken, involving support from five space agencies representing 16 nations. Once's solar panels exceed the wingspan of a Boeing 777 jetliner and harness enough energy from the sunNational Aeronautics and Space Administration NASAfacts International Space Station Clearly

408

As you prepare for your upcoming beam time, please be aware that construction is planned to update SLAC Gate 17 with RFID proximity card access hardware and to change the stairs next to the Security hut to an ADA compliant ramp. Please forward this to your proposal collaborators (and ensure that all users have registered and completed training before they arrive). This construction is scheduled to begin Tuesday 5/28 and be completed by 6/28. During this construction, access to the LCLS and SSRL buildings and experimental facilities will be provided as follows: VEHICLES ONLY THROUGH GATE 17 5/28-6/28 0600-1530 (6 am-3:30 pm) Construction Zone. Only VEHICLE traffic will be allowed access through Gate 17 and flagman will provide traffic control. 1530-1800 (3:30-6:00 pm) Assumes construction will have stopped for the day; both traffic lanes will be open for vehicles. 1800-0600 (6 pm-6 am) As now, Gate 17 will be closed or barricaded overnight. PEDESTRIANS ONLY THROUGH GATE 16 5/28-6/28 The pedestrian turnstile at Gate 16A will not change. The turnstile is available for pedestrian use 24/7 as long as the individual has a valid SLAC ID badge (and there is a guard at Gate 30 to 'buzz' them through). 0700-1600 (6 am-4 pm) Pedestrians who would normally walk through Gate 17 will instead follow the detour to Gate 16 swing gate which will be unlocked and staffed by Security. A valid SLAC ID badge is needed to enter; new users without IDs will be allowed to proceed for check-in and badging after confirmation with the User Research Administration Office (see detour map attached). FYI - After the construction is completed and proximity card readers are fully functional, users and staff will enter Gates 17 and 30 using an activated RFID proximity card. More details to follow.  

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

Automated Proximity Access at Gate 17 and Sector 30 Automated Proximity Access at Gate 17 and Sector 30 New SLAC ID badges with embedded RFID are used to activate these gates and for off-hours access at the main entrance off Sand Hill Road as well as Alpine Road (gates will be accessible 24/7) . New user badges include this proximity gate activation feature, but older photo IDs need to be updated. Users are advised to register, complete training and contact the User Research Administration (URA) office before arrival for beam time to help facilitate access. During the transition period, July 26-August 9, 2013 users can inform Security at Gate 17 that they are checking in and proceed to the URA office in Building 120; however, after August 9 th , users without a proximity activated ID need to stop at

409

The science of space weather  

Science Journals Connector (OSTI)

...magnetic reconnection|space weather| 1. Introduction Fifty...31 January 1958, the satellite Explorer 1 was launched...et al. 2005). (e) Satellite anomalies Space weather can cause a variety of satellite anomalies such as surface...

2008-01-01T23:59:59.000Z

410

Space Contamination and Ecological Problems  

Science Journals Connector (OSTI)

The state-of-the-art theories concerning the problem of pollution by space vehicles are discussed and a variety of mechanical problems’ formulations are considered, as applied to environmental problems in space.

V. M. Fomin; A. M. Kharitonov…

1995-01-01T23:59:59.000Z

411

Europeanizing Territoriality - Towards Soft Spaces?  

E-Print Network [OSTI]

spatial or development planning might provide a way forward. A number of studies across Europe have highlighted and explored the emergence of so called soft spaces as attempts to create hybrids of territorial and relational spaces (see, for example... by creating bespoke spaces for dealing with specific issues such as regeneration, integrating different sectors such as transport, infrastructure, education, etc. in such processes operating at variable scales. Studies of soft spaces have focused upon...

Allmendinger, Phil; Chilla, Tobias; Sielker, Franziska

2014-01-01T23:59:59.000Z

412

Demystifying White Spaces Xuemin Hongl  

E-Print Network [OSTI]

Demystifying White Spaces Xuemin Hongl , Cheng-Xiang Wangl , John Thompson2 , and Yan Zhang3 1Joint.wang@hw.ac.uk.john.thompson@ed.ac.uk. yanzhang@ieee.org Abstract-White spaces refer to the unused frequency voids across time or space. The vast existence of white spaces has been validated by many measurements and is widely regarded as an undesirable

Wang, Cheng-Xiang

413

2012 RAL Space Sarah James  

E-Print Network [OSTI]

are here Chilton Ionosonde #12;© 2012 RAL Space #12;What is the ionosphere? Marconi's transatlantic radio

414

Thermoacoustic power systems for space applications  

SciTech Connect (OSTI)

Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (W/kg). Thermoacoustic engines can convert high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, these engines are low mass and promise to be highly reliable. Coupling a thermoacoustic engine to a low-mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Data will be presented on the first tests of a demonstration thermoacoustic engine designed for the 100-Watt power range.

Backhaus, S. N. (Scott N.); Tward, E. (Emanual); Pedach, M. (Michael)

2001-01-01T23:59:59.000Z

415

Initial tests of thermoacoustic space power engine.  

SciTech Connect (OSTI)

Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (Wikg). Thennoacoustic engines at the -1-kW scale have converted high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, thennoacoustic engines are low mass and promise to be highly reliable. Coupling a thennoacoustic engine to a low mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Conversion efficiency data will be presented on a demonstration thennoacoustic engine designed for the 1 00-Watt power range.

Backhaus, S. N. (Scott N.)

2002-01-01T23:59:59.000Z

416

Temperature dependence of a high- T c single-flux-quantum logic gate up to 50 K  

Science Journals Connector (OSTI)

Basic characteristics of a simple single-flux-quantum (SFQ) logic gate using high- T c material and Josephson junction ( NdBa 2 Cu 3 O 7?? and focused ion beamjunction) have been investigated. The logic gate consists of an rf-superconducting quantum interference device (rf-SQUID) and a dc-SQUID. In the logic gate elementary SFQ logic operations such as generating SFQ (dc/SFQ) and providing simultaneous readout (SFQ/dc) have been confirmed up to 50 K. The temperature dependencies of the output voltage level and the critical current-normal resistance (I c R n ) product were compared and the decreasing tendency of the output voltage level for increasing temperature was found to be more rapid than that of the I c R n product.

Kazuo Saitoh; Tadashi Utagawa; Youichi Enomoto

1998-01-01T23:59:59.000Z

417

Electron Transport Behavior on Gate Length Scaling in Sub-50 nm GaAs Metal Semiconductor Field Effect Transistors  

SciTech Connect (OSTI)

Short channel GaAs Metal Semiconductor Field Effect Transistors (MESFETs) have been fabricated with gate length to 20 nm, in order to examine the characteristics of sub-50 nm MESFET scaling. Here the rise in the measured transconductance is mainly attributed to electron velocity overshoot. For gate lengths below 40 nm, however, the transconductance drops suddenly. The behavior of velocity overshoot and its degradation is investigated and simulated by using a transport model based on the retarded Langevin equation (RLE). This indicates the existence of a minimum acceleration length needed for the carriers to reach the overshoot velocity. The argument shows that the source resistance must be included as an internal element, or appropriate boundary condition, of relative importance in any model where the gate length is comparable to the inelastic mean free path of the carriers.

Han, Jaeheon [Department of Electronic Engineering, Kangnam University, 111 Gugal-dong, Giheung-gu, Yongin-city, Gyeonggi-do, Korea 446-702 (Korea, Republic of)

2011-12-23T23:59:59.000Z

418

Josephson-junction arrays with long-range interactions  

SciTech Connect (OSTI)

We calculate the current-voltage (IV) characteristics of a Josephson-junction array with long-range interactions. The array consists of two sets of equally spaced parallel superconducting wires placed at right angles. A Josephson junction is formed at every point wherever the wires cross. We treat each such junction as an overdamped resistively shunted junction, and each wire segment between two junctions as a similar resistively shunted junction with a much higher critical current. The IV characteristics are obtained by solving the coupled Josephson equations numerically. We find that, for a sufficiently large number of wires, the critical current saturates at a finite value because of the wire inductance, in excellent agreement with experiment. The calculated IV characteristics also show a striking hysteresis, even though each of the individual junctions is {ital nonhysteretic}. The hysteresis results from a global redistribution of current flow on the upper and lower voltage branches, and is also in excellent agreement with experiment. {copyright} {ital 1997} {ital The American Physical Society}

Harbaugh, J.K.; Stroud, D. [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)] [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)

1997-10-01T23:59:59.000Z

419

Space, Health and Population Economics  

E-Print Network [OSTI]

Space, Health SHaPE and Population Economics Changing Demographics and Immigration: Implications for IndianaImplications for Indiana Brigitte Waldorf, Purdue University Farm Policy Study Group b 20 07 December 2010 #12;Space, Health SHaPE and Population Economics America is ... ... Aging #12;Space, Health

420

Geodesic spaces : momentum Groups : symmetry  

E-Print Network [OSTI]

Geodesic spaces : momentum :: Groups : symmetry Vaughan Pratt Stanford University BLAST 2010 a · b denoting b rotated 90 degrees about a. End of reprise. 3. This talk; Geodesic spaces At FMCS. as points evenly spaced along a geodesic , right distributivity expresses a symmetry of about an arbitrary

Pratt, Vaughan

Note: This page contains sample records for the topic "range gate spacing" 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

National Aeronautics and Space Administration  

E-Print Network [OSTI]

really mark the end of outer space as a field for humankind's visions, longings, and projections ccononttiinnuueedd onon nenexxtt ppaagege Berlin Symposium on Outer Space and the End of Utopia in the 1970s By Friederike Mehl, Universiteit van Amsterdam, FriederikeMehl@gmx.de Did the end of the Space Age in the 1970s

422

Policies on Japan's Space Industry  

E-Print Network [OSTI]

as a strategic industry Practical space use in National Security Diplomacy ...etc Policy Administrative Structure on the Basic Space Law legislated in 2008. 1. The government sets space policy as a national strategy utilization environment Develop new markets with small size satellites and rockets Promote the serialization

423

National Aeronautics and Space Administration  

E-Print Network [OSTI]

National Aeronautics and Space Administration Launch Services Program Earth's Bridge to Space 2012 roles, getting rockets and satellites ready for flight, on their way, and all the way to orbit absolutely instrumental for the United States to have access to a dependable and secure Earth-to-space bridge

424

Upgrading Below Grade Spaces  

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

Patrick H. Huelman, Sam Breidenbach, Steve Schirber Patrick H. Huelman, Sam Breidenbach, Steve Schirber NorthernSTAR Building America Partnership Upgrading Below Grade Spaces Residential Energy Efficiency Stakeholder March 1, 2012 Austin, TX * Act 1: Technical Challenges & Opportunities - Pat Huelman, University of Minnesota * Act 2: Assessing Homeowner Priorities & Risks - Sam Breidenbach, TDS Custom Construction * Act 3: An Industry Perspective - Steve Schirber, Cocoon Act 1. Upgrade Below Grade * Basement Remodeling: It Doesn't Get Any Riskier! - Combustion safety - Foundation moisture - Radon (& other soil gases) - Biologicals (mold, dust mites, etc.) - Garage gases (if attached) * And front and center are uncontrolled... - negative pressures in basements (beyond stack)

425

space booklet_DOE  

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

U U C L E A R E N E R G Y DOE/NE-0071 U . S . D e p a r t m e n t o f E n e r g y O f f i c e o f N u c l e a r E n e r g y , S c i e n c e a n d T e c h n o l o g y N UCLEAR Power in Space 2

426

Hyper Space Issue 2  

E-Print Network [OSTI]

University, Indianapolis, Indiana. Ed.: How real is STAR WARS? Nick: I enjoyed seeing the movie, it was funl I found the story reasonable. The models and special effects were terrificI There were a couple of errors such as the misuaaof the concept... space without any sound may be uninteresting to the audience. Ed.: What about faster than light travel? Nick: Hyper drive is impossible if you use conventional physics starting from a finite position. But if you start in a different place hyperdrive...

1977-01-01T23:59:59.000Z

427

Gate Metal-Induced Diffusion and Interface Reactions in Hf Oxide Films on Si  

SciTech Connect (OSTI)

When metal electrodes are deposited on a high-{kappa} metal-oxide/SiO{sub 2}/Si stack, chemical interactions may occur both at the metal/high-{kappa} and the high-{kappa}/Si interfaces, causing changes in electrical performance. We report here results from medium energy ion scattering (MEIS) and x-ray photoelectron (XPS) studies of oxygen and silicon transport and interfacial layer reactions in multilayer gate stacks. Our results show that Ti deposition on HfO{sub 2}/SiO{sub 2}/Si stacks causes reduction of the SiO{sub 2} interfacial layer and (to a lesser extent) the HfO{sub 2} layer. Silicon atoms initially present in the interfacial SiO{sub 2} layer incorporate into the bottom of the high-{kappa} layer. Some evidence for titanium-silicon interdiffusion through the high-{kappa} film in the presence of a titanium gate in crystalline HfO{sub 2} films is also reported.

Goncharova, Lyudmila V.; Dalponte, Mateus; Celik, Ozgur; Garfunkel, Eric; Gustafsson, Torgny [Departments of Physics and Chemistry, and Laboratory for Surface Modification, Rutgers University, Piscataway, NJ 08854 (United States); Lysaght, Pat S.; Bersuker, Gennadi I. [Sematech, Austin, Texas 78741 (United States)

2007-09-26T23:59:59.000Z

428

Structure of a Blm10 Complex Reveals Common Mechanisms for Proteasome Binding and Gate Opening  

SciTech Connect (OSTI)

The proteasome is an abundant protease that is critically important for numerous cellular pathways. Proteasomes are activated in vitro by three known classes of proteins/complexes, including Blm10/PA200. Here, we report a 3.4 {angstrom} resolution crystal structure of a proteasome-Blm10 complex, which reveals that Blm10 surrounds the proteasome entry pore in the 1.2 MDa complex to form a largely closed dome that is expected to restrict access of potential substrates. This architecture and the observation that Blm10 induces a disordered proteasome gate structure challenge the assumption that Blm10 functions as an activator of proteolysis in vivo. The Blm10 C terminus binds in the same manner as seen for 11S activators and inferred for 19S/PAN activators and indicates a unified model for gate opening. We also demonstrate that Blm10 acts to maintain mitochondrial function. Consistent with the structural data, the C-terminal residues of Blm10 are needed for this activity.

Sadre-Bazzaz, K.; Robinson, H.; Whitby, F. G.; Formosa, T.; Hill, C. P.

2010-03-12T23:59:59.000Z

429

The elusive hair cell gating spring, a potential role for the lipid membrane  

Science Journals Connector (OSTI)

Deflection of auditory hair cell hair bundle results in a nonlinear (i.e. non Hookean) force-displacement relationships whose molecular mechanism remains elusive. A gating spring model posits that mechanosensitive channels are in series with a spring such that channel opening puts the activation gate in series with the spring thus reducing spring extension until further stimulation is provided. Here we present a theoretical analysis of whether the lipid membrane might be the source of nonlinearity. A hair bundle kinematic model is coupled with a lipid membrane model that includes a diffusible compartment into which the tip-link embeds and a minimally diffusive reservoir pool. Using physiological parameters this model was capable of reproducing nonlinear force-displacement plots including a negative stiffness component but required a standing tip-link tension. In addition this model suggests the mechanotransducer channel is most sensitive to curvature forces that are located within 2 nm of the tip-link. [Work supported in part by Grant Nos. R01-DC07910 and R01-DC03896 from the NIDCD of NIH and by The Timoshenko fund from Mechanical Engineering Department at Stanford University].

Charles R. Steele; Sunil Puria

2013-01-01T23:59:59.000Z

430

Experimental investigation of bright spots in broadband, gated x-ray images of ignition-scale implosions on the National Ignition Facility  

SciTech Connect (OSTI)

Bright spots in the hot spot intensity profile of gated x-ray images of ignition-scale implosions at the National Ignition Facility [G. H. Miller et al., Opt. Eng. 443, (2004)] are observed. X-ray images of cryogenically layered deuterium-tritium (DT) and tritium-hydrogen-deuterium (THD) ice capsules, and gas filled plastic shell capsules (Symcap) were recorded along the hohlraum symmetry axis. Heterogeneous mixing of ablator material and fuel into the hot spot (i.e., hot-spot mix) by hydrodynamic instabilities causes the bright spots. Hot-spot mix increases the radiative cooling of the hot spot. Fourier analysis of the x-ray images is used to quantify the evolution of bright spots in both x- and k-space. Bright spot images were azimuthally binned to characterize bright spot location relative to known isolated defects on the capsule surface. A strong correlation is observed between bright spot location and the fill tube for both Symcap and cryogenically layered DT and THD ice targets, indicating the fill tube is a significant seed for the ablation front instability causing hot-spot mix. The fill tube is the predominant seed for Symcaps, while other capsule non-uniformities are dominant seeds for the cryogenically layered DT and THD ice targets. A comparison of the bright spot power observed for Si- and Ge-doped ablator targets shows heterogeneous mix in Symcap targets is mostly material from the doped ablator layer.

Barrios, M. A.; Suter, L. J.; Glenn, S.; Benedetti, L. R.; Bradley, D. K.; Collins, G. W.; Hammel, B. A.; Izumi, N.; Ma, T.; Scott, H.; Smalyuk, V. A. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)] [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Regan, S. P.; Epstein, R. [Laboratory for Laser Energetics, University of Rochester 250 East River Road, Rochester, New York 14623-199 (United States)] [Laboratory for Laser Energetics, University of Rochester 250 East River Road, Rochester, New York 14623-199 (United States); Kyrala, G. A. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2013-07-15T23:59:59.000Z

431

Range Sustainability (VSP) PNWD-SA-7032 1  

E-Print Network [OSTI]

Range Sustainability (VSP) PNWD-SA-7032 1 PNWD-SA-7032 Range Sustainability Module Using Visual Sample Plan (VSP) Software Range Sustainability ModuleRange Sustainability Module Using Visual Sample Sustainability (VSP) PNWD-SA-7032 2 PNWD-SA-7032 / 2 ObjectiveObjectiveObjective Learn how to use the Range

432

Magnetic reconnection in space  

SciTech Connect (OSTI)

Models of magnetic reconnection in space plasmas generally consider only a segment of the magnetic field lines. The consideration of only a segment of the lines is shown to lead to paradoxical results in which reconnection can be impossible even in a magnetic field constrained to be curl free or can be at an Alfven rate even when the plasma is a perfect conductor. A model of reconnecting magnetic fields is developed which shows the smallness of the interdiffusion distance {delta}{sub d} of magnetic field lines does not limit the speed of reconnection but does provide a reconnection trigger. When the reconnection region has a natural length L{sub r}, the spatial scale of the gradient of magnetic field across the magnetic field lines must reach L{sub g} Almost-Equal-To 0.3L{sub r}/ln(L{sub r}/{delta}{sub d}) for fast reconnection to be triggered, which implies a current density j Almost-Equal-To B/{mu}{sub 0}L{sub g} that is far lower than that usually thought required for fast reconnection. The relation between magnetic reconnection in space and in toroidal laboratory plasmas is also discussed.

Boozer, Allen H. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)

2012-09-15T23:59:59.000Z

433

In Proceedings of the 8th IEEE International Conference on Tools with Artificial Intelligence, Toulouse, France, 1996. GATE: An Environment to Support Research and Development  

E-Print Network [OSTI]

describe a software environment to support research and development in natural language (NL) engineering, Toulouse, France, 1996. GATE: An Environment to Support Research and Development in Natural Language. This environment ­ GATE (General Architecture for Text Engineering) ­ aims to advance research in the area

Gaizauskas, Rob

434

In Proceedings of the 8th IEEE International Conference on Tools with Artificial Intelligence, Toulouse, France, 1996. GATE: An Environment to Support Research and Development  

E-Print Network [OSTI]

describe a software environment to support research and development in natural language (NL) engineering, Toulouse, France, 1996. GATE: An Environment to Support Research and Development in Natural Language. This environment -- GATE (General Architecture for Text Engineering) -- aims to advance research in the area

Gaizauskas, Rob

435

Commutators on Banach Spaces  

E-Print Network [OSTI]

simple facts: ? If T : X ? X is a commutator on X and S: X ? Y is an onto isomorphism, then STS?1 is a commutator on Y. ? Let T : X ? X be such that there exists X1 ? X for which T|X1 is an iso- morphism and d(X1,TX1) > 0. If S: X ? Y is an onto... and TP0 are commu- tators. Proof. The proof shows that P0T is in the range of DL and TP0 is in the range of DR. We will consider two cases depending on p. Case I : p = ? In this case we first observe that the series S0 = ?summationdisplay n=0 RnP0TLn...

Dosev, Detelin

2010-10-12T23:59:59.000Z

436

Modulation of conductance and superconductivity by top-gating in LaAlO{sub 3}/SrTiO{sub 3} 2-dimensional electron systems  

SciTech Connect (OSTI)

We report the electrical top-gating of a 2-dimensional electron gas (2DEG) formed at the LaAlO{sub 3}/SrTiO{sub 3} interface, using electron-beam evaporated Au gate electrodes. In these structures, epitaxial LaAlO{sub 3} films grown by pulsed laser deposition induce the 2DEGs at the interface to the SrTiO{sub 3} substrate and simultaneously act as the gate dielectric. The structured top-gates enable a local tuning and complete on/off switching of the interface (super-)conductivity, while maintaining the usual, intrinsic characteristics for these LaAlO{sub 3}/SrTiO{sub 3} interfaces when no gate voltage is applied.

Eerkes, P. D.; Wiel, W. G. van der; Hilgenkamp, H. [MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands)] [MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands)

2013-11-11T23:59:59.000Z

437

AERaSPACE CORPORATION  

Office of Legacy Management (LM)

THE ' THE ' AERaSPACE CORPORATION Suite 300, 955 L' &njon~ Pkzza. S. W., Washingvan. D.C. 200242174, Tekphanc (202) 488~6CllO 7117-03.87.cdy.43 23 September 1987 CA CA.Ot M r. Andrew Wallo, III. NE-23 Division of Facility & Site cr.05 Decommissioning Projects FL .0-d U.S. Department of Energy TAl.OL Germantown; Maryland 20545 JA/.OZ 1hJ . o-01 Dear M r. Wallo: flA.05 ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES M /4.0-* 11 D.OF The attached elimination recommendation was prepared in accordance ML.o= with your suggestion during our meeting on 22 September. The recommendation nO.o-02 includes 26 colleges and universities identified,in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated MO.03. 27 May 1987; three institutions (Tufts College, University of Virginia,

438

Machian space quanta  

E-Print Network [OSTI]

A new model for space and matter is obtained by joining every pair of point charges in the observable universe by an ethereal string. Positive gravitational potential energy in each string gives an attractive gravitational force due to the action of an energy conservation constraint. Newton's laws of motion are derived and inertia is explained in accordance with Mach's principle. The Machian string model gives a surprisingly simple way to understand the expansion history of the Universe. The decelerating expansion in the radiation era and the matter era is explained without using General Relativity and the transition from deceleration to acceleration is explained without the need to introduce a separate 'dark energy' component. The interaction between Machian strings gives a physical model for modified Newtonian dynamics (MOND) and is therefore an alternative to 'dark matter'.

Essex, David W

2015-01-01T23:59:59.000Z

439

Machian space quanta  

E-Print Network [OSTI]

A new model for space and matter is obtained by joining every pair of point charges in the observable universe by an ethereal string. Positive gravitational potential energy in each string gives an attractive gravitational force due to the action of an energy conservation constraint. Newton's laws of motion are derived and inertia is explained in accordance with Mach's principle. The Machian string model gives a surprisingly simple way to understand the expansion history of the Universe. The decelerating expansion in the radiation era and the matter era is explained without using General Relativity and the transition from deceleration to acceleration is explained without the need to introduce a separate 'dark energy' component. The interaction between Machian strings gives a physical model for modified Newtonian dynamics (MOND) and is therefore an alternative to 'dark matter'.

David W. Essex

2015-01-25T23:59:59.000Z

440

Long Range Correlations of Light Intensity inside Photonic Nanostructures  

Science Journals Connector (OSTI)

We measured directly long range spatial intensity correlations inside quasi-two dimensional disordered photonic waveguides. Enhancement of long-range correlations is observed in...

Sarma, Raktim; Yamilov, Alexey G; Shapiro, Boris; Cao, Hui

Note: This page contains sample records for the topic "range gate spacing" 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

Probing Long Range Intensity Correlations inside Disordered Photonic Waveguides  

Science Journals Connector (OSTI)

We report direct measurements of long-range spatial intensity correlations and fluctuations inside quasi-two-dimensional random structures. Long-range correlations are enhanced by...

Sarma, Raktim; Yamilov, Alexey; Neupane, Pauf; Shapiro, Boris; Cao, Hui

442

T-710: Apache HTTP Server Overlapping Ranges Denial of Service...  

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

0: Apache HTTP Server Overlapping Ranges Denial of Service Vulnerability T-710: Apache HTTP Server Overlapping Ranges Denial of Service Vulnerability September 6, 2011 - 3:09am...

443

Geographic Information System At Northern Basin & Range Region...  

Open Energy Info (EERE)

Activity: Geographic Information System At Northern Basin & Range Region (Nash & Johnson, 2003) Exploration Activity Details Location Northern Basin and Range Geothermal...

444

Geographic Information System At Nw Basin & Range Region (Nash...  

Open Energy Info (EERE)

Geographic Information System At Nw Basin & Range Region (Nash & Johnson, 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration...

445

Isolation of Mycobacterium avium subsp. paratuberculosis from Free-Ranging Birds and Mammals on Livestock Premises  

Science Journals Connector (OSTI)

...weasels, a stoat, wood mouse, and crow (4...a stoat (1 of 6), wood mice (2 of 2), crows...E. Kucera, N. B. Gates, L. M. Woods, and M. Fallon-McKnight...Paratuberculosis in red deer (Cervus elaphus...

Joseph L. Corn; Elizabeth J. B. Manning; Srinand Sreevatsan; John R. Fischer

2005-11-01T23:59:59.000Z

446

Introduction to Scale-Space Theory: Multiscale Geometric Image Analysis  

E-Print Network [OSTI]

available, like microscopes and telescopes. The scale range known to humankind spans about 50 decades, like meters, seconds, candelas, amp`eres etc. In front-end vision the apparatus (starting at the retina on scale-space theory and front-end vision [tHR97], appearing Spring or Summer 1997. 2It is not so

DeCarlo, Doug

447

Assesment of Riverbed Change Due to the Operation of a Series of Gates in a Natural River  

E-Print Network [OSTI]

the Mesh .............................................................. 87 Figure 63 Study Area in 2-D Model ......................................................................... 88 viii Figure 64 Comparison of Cross Sections between 1-D... Characteristics from Estuary to Bakje Weir ........................... 123 Figure 88 Temporal Comparison of Hydraulic Characteristics ............................... 125 Figure 89 Mass Change from Sejong Weir to Daechung Dam by Gate Operation . 129...

Kim, Zooho

2013-03-13T23:59:59.000Z

448

The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study  

E-Print Network [OSTI]

The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh conditions that elucidate the role of oxygen in the functioning of silicon carbide field-effect gas sensors hydrogen-depleted state; competition between hydrogen oxidation and hydrogen diffusion to metal/ oxide

Tobin, Roger G.

449

Abstract--Bias temperature instability, hot-carrier injection, and gate-oxide wearout will cause severe lifetime degradation in  

E-Print Network [OSTI]

Abstract--Bias temperature instability, hot-carrier injection, and gate-oxide wearout will cause mechanisms are bias temperature instability (BTI) [1] and hot-carrier injection (HCI) [2], both of which can is compounded by thermal feedback, since active devices located at die hot spots operate at an elevated

Lipasti, Mikko H.

450

International Conference on Internet Computing. Las Vegas, Nevada, p. 620 626. 23 26 June MONSTERS AT THE GATE  

E-Print Network [OSTI]

, (2) Web agents are searching for a wide variety of information, with 60% of the terms used being: terms exactly as entered by the given user. Data Analysis With these three fields, we located initial June 2003. MONSTERS AT THE GATE: WHEN SOFTBOTS VISIT WEB SEARCH ENGINES Bernard J. Jansen and Amanda S

Jansen, James

451

Drug Release from Self-Assembled Inorganic?Organic Hybrid Gels and Gated Porosity Detected by Positron Annihilation Lifetime Spectroscopy  

Science Journals Connector (OSTI)

Drug Release from Self-Assembled Inorganic?Organic Hybrid Gels and Gated Porosity Detected by Positron Annihilation Lifetime Spectroscopy ... Institute of Physical Chemistry, University of Münster, Corrensstrasse 36, 48149 Münster, Germany, CSIRO Manufacturing and Infrastructure Technology, Victoria, Australia, and School of Chemistry, Monash University, Clayton Victoria, Australia ...

Ansgar Bögershausen; Steven J. Pas; Anita J. Hill; Hubert Koller

2006-01-06T23:59:59.000Z

452

Voltage-and calcium-dependent gating of TMEM16A/Ano1 chloride channels are physically  

E-Print Network [OSTI]

Voltage- and calcium-dependent gating of TMEM16A/Ano1 chloride channels are physically coupled by the first intracellular loop Qinghuan Xiaoa , Kuai Yua , Patricia Perez-Cornejob , Yuanyuan Cuia , Jorge in the first intracellular loop that is crucial for both Ca2+ and voltage sensing. Deleting 448EAVK

453

Test Set Reordering Using the Gate Exhaustive Test Metric Kyoung Youn Cho and Edward J. McCluskey  

E-Print Network [OSTI]

Test Set Reordering Using the Gate Exhaustive Test Metric Kyoung Youn Cho and Edward J. Mc kycho@crc.stanford.edu Abstract When a test set size is larger than desired, some patterns must be dropped. This paper presents a systematic method to reduce test set size; the method reorders a test set

Stanford University

454

IEEE ELECTRON DEVICE LETTERS, VOL. 29, NO. 2, FEBRUARY 2008 183 Externally Assembled Gate-All-Around Carbon  

E-Print Network [OSTI]

-All-Around Carbon Nanotube Field-Effect Transistor Zhihong Chen, Member, IEEE, Damon Farmer, Sheng Xu, Roy Gordon USA (e-mail: zchen@us.ibm.com; avouris@ us.ibm.com). D. Farmer is with the School of Engineering demonstrate a gate-all-around single- wall carbon nanotube field-effect transistor. This is the first suc

455

PUBLISHED ONLINE: 31 AUGUST 2014 | DOI: 10.1038/NPHYS3049 Gate-tunable superconducting weak link and  

E-Print Network [OSTI]

to control transmission across the device, and conductance measurements are carried out with standard lock Lee, James R. Williams and David Goldhaber-Gordon* Two-dimensional electron systems in gallium they are easily modulated by voltages on nanopatterned gate electrodes. Electron systems at oxide interfaces hold

Loss, Daniel

456

Dirac point and transconductance of top-gated graphene field-effect transistors operating at elevated temperature  

SciTech Connect (OSTI)

Top-gated graphene field-effect transistors (GFETs) have been fabricated using bilayer epitaxial graphene grown on the Si-face of 4H-SiC substrates by thermal decomposition of silicon carbide in high vacuum. Graphene films were characterized by Raman spectroscopy, Atomic Force Microscopy, Scanning Tunnelling Microscopy, and Hall measurements to estimate graphene thickness, morphology, and charge transport properties. A 27?nm thick Al{sub 2}O{sub 3} gate dielectric was grown by atomic layer deposition with an e-beam evaporated Al seed layer. Electrical characterization of the GFETs has been performed at operating temperatures up to 100?°C limited by deterioration of the gate dielectric performance at higher temperatures. Devices displayed stable operation with the gate oxide dielectric strength exceeding 4.5 MV/cm at 100?°C. Significant shifting of the charge neutrality point and an increase of the peak transconductance were observed in the GFETs as the operating temperature was elevated from room temperature to 100?°C.

Hopf, T.; Vassilevski, K. V., E-mail: k.vasilevskiy@ncl.ac.uk; Escobedo-Cousin, E.; King, P. J.; Wright, N. G.; O'Neill, A. G.; Horsfall, A. B.; Goss, J. P. [School of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU (United Kingdom); Wells, G. H.; Hunt, M. R. C. [Department of Physics, Durham University, Durham DH1 3LE (United Kingdom)

2014-10-21T23:59:59.000Z

457

High-speed and bi-stable electrolysis-bubble actuated planar micro gate valves are demonstrated in this paper.  

E-Print Network [OSTI]

SUMMARY High-speed and bi-stable electrolysis-bubble actuated planar micro gate valves are demonstrated in this paper. The speed of previous low power planar microvalves was limited by the bubble collapse process. In addition bi-stability was unreliable. In this work, surface tension is used

Liepmann, Dorian

458

Role of hydrogen in Ge/HfO2/Al gate stacks subjected to negative bias temperature instability  

E-Print Network [OSTI]

Role of hydrogen in Ge/HfO2/Al gate stacks subjected to negative bias temperature instability N 2007; published online 17 January 2008 This work investigates the role of hydrogen and nitrogen in a Ge. Virtually unchanged interface state density as a function of NBTI indicates no atomic hydrogen release from

Misra, Durgamadhab "Durga"

459

Range Con: a management evaluation system for assessing sucess of selected range improvement practices  

E-Print Network [OSTI]

interview, and 80 identified agency/academic and rancher tertiary experts interviewed with a questionnaire. Responses from the tertiary experts were used to assign weight to values of the object/attribute/value triplet. Face validation procedures... success he assigned to the evaluation due to his greater level of knowledge associated with the technology. Range management experts experience the same processes, which often leads them to recommend technology to ranchers that exceeds the ranchers...

Ekblad, Steven Linn

2012-06-07T23:59:59.000Z

460

Posters Single-Column Model and Cumulus Ensemble Model Simulations of GATE Data  

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

3 3 Posters Single-Column Model and Cumulus Ensemble Model Simulations of GATE Data D. A. Randall and K.-M Xu Colorado State University Department of Atmospheric Science Fort Collins, Colorado Introduction Our project for the Atmospheric Radiation Measurement (ARM) Program consists of developing and demonstrating improved cloud formation parameterizations using a single-column model (SCM), a cumulus ensemble model (CEM), and ARM data. These two models can be driven with large-scale forcing (e.g., vertical motion) as observed in ARM. Each model produces a field of clouds and the associated radiation and precipitation fields. The SCM does so through its physical parameterizations, while the CEM does so by directly simulating convective cloud circulations. The improved parameterizations tested in this way will be

Note: This page contains sample records for the topic "range gate spacing" 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

Difference of operation mechanisms in SWNTs network FETs studied via scanning gate microscopy  

SciTech Connect (OSTI)

Field effect transistors (FETs) whose channel is composed of a network of single wall carbon nanotubes (SWNTs) have been studied to investigate the mechanism of the device operation via scanning gate microscopy (SGM) at room temperature. We observed different SGM response in networks of SWNTs either synthesized by CoMoCAT process or semiconducting enriched by density gradient ultracentrifuge process. In the former case, SGM response was observed at specific inter-tube junctions suggesting a Schottky junction formed with semiconducting and metallic SWNTs in the network. In contrast, multiple concentric rings in the SGM response are observed within the tubes in a network of the latter SWNTs suggesting a possibility of quantum mechanical transport at room-temperature. Different type of SGM responses are confirmed in the two kinds of SWNTs networks, nevertheless such active positions would likely have an important role in the FET operation mechanism in each network.

Wei, Xiaojun; Matsunaga, Masahiro; Yahagi, Tatsurou; Maeda, Kenji; Ochiai, Yuichi; Aoki, Nobuyuki [Graduate School of Advanced Integration Science, Chiba University, Chiba 263-8522 (Japan); Bird, Jonathan P. [Department of Electrical Engineering, University at Buffalo, the State University of New York, Buffalo, NY 14260-1920 (United States); Ishibashi, Koji [Advanced Device Laboratory, RIKEN, Wako, Saitama 351-0198 (Japan)

2013-12-04T23:59:59.000Z

462

The accelerated site technology deployment program presents the segmented gate system  

SciTech Connect (OSTI)

The Department of Energy (DOE) is working to accelerate the acceptance and application of innovative technologies that improve the way the nation manages its environmental remediation problems. The DOE Office of Science and Technology established the Accelerated Site Technology Deployment Program (ASTD) to help accelerate the acceptance and implementation of new and innovative soil and ground water remediation technologies. Coordinated by the Department of Energy's Idaho Office, the ASTD Program reduces many of the classic barriers to the deployment of new technologies by involving government, industry, and regulatory agencies in the assessment, implementation, and validation of innovative technologies. The paper uses the example of the Segmented Gate System (SGS) to illustrate how the ASTD program works. The SGS was used to cost effectively separate clean and contaminated soil for four different radionuclides: plutonium, uranium, thorium, and cesium. Based on those results, it has been proposed to use the SGS at seven other DOE sites across the country.

PATTESON,RAYMOND; MAYNOR,DOUG; CALLAN,CONNIE

2000-02-24T23:59:59.000Z

463

A New Gated X-Ray Detector for the Orion Laser Facility  

SciTech Connect (OSTI)

Gated X-Ray Detectors (GXD) are considered the work-horse target diagnostic of the laser based inertial confinement fusion (ICF) program. Recently, Los Alamos National Laboratory (LANL) has constructed three new GXDs for the Orion laser facility at the Atomic Weapons Establishment (AWE) in the United Kingdom. What sets these three new instruments apart from the what has previously been constructed for the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) is: improvements in detector head microwave transmission lines, solid state embedded hard drive and updated control software, and lighter air box design and other incremental mechanical improvements. In this paper we will present the latest GXD design enhancements and sample calibration data taken on the Trident laser facility at Los Alamos National Laboratory using the newly constructed instruments.

Clark, David D. [Los Alamos National Laboratory; Aragonez, Robert J. [Los Alamos National Laboratory; Archuleta, Thomas N. [Los Alamos National Laboratory; Fatherley, Valerie E. [Los Alamos National Laboratory; Hsu, Albert H. [Los Alamos National Laboratory; Jorgenson, H. J. [Los Alamos National Laboratory; Mares, Danielle [Los Alamos National Laboratory; Oertel, John A. [Los Alamos National Laboratory; Oades, Kevin [Atomic Weapons Establishment; Kemshall, Paul [Atomic Weapons Establishment; Thomas, Philip [Atomic Weapons Establishment; Young, Trevor [Atomic Weapons Establishment; Pederson, Neal [VI Control Systems

2012-08-08T23:59:59.000Z

464

Wafer-scale solution-derived molecular gate dielectrics for low-voltage graphene electronics  

SciTech Connect (OSTI)

Graphene field-effect transistors are integrated with solution-processed multilayer hybrid organic-inorganic self-assembled nanodielectrics (SANDs). The resulting devices exhibit low-operating voltage (2?V), negligible hysteresis, current saturation with intrinsic gain >1.0 in vacuum (pressure?gate dielectrics. Statistical analysis of the field-effect mobility and residual carrier concentration demonstrate high spatial uniformity of the dielectric interfacial properties and graphene transistor characteristics over full 3 in. wafers. This work thus establishes SANDs as an effective platform for large-area, high-performance graphene electronics.

Sangwan, Vinod K.; Jariwala, Deep; McMorrow, Julian J.; He, Jianting; Lauhon, Lincoln J. [Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (United States); Everaerts, Ken [Department of Chemistry, Northwestern University, Evanston, Illinois 60208 (United States); Grayson, Matthew [Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60208 (United States); Marks, Tobin J., E-mail: t-marks@northwestern.edu, E-mail: m-hersam@northwestern.edu; Hersam, Mark C., E-mail: t-marks@northwestern.edu, E-mail: m-hersam@northwestern.edu [Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (United States); Department of Chemistry, Northwestern University, Evanston, Illinois 60208 (United States)

2014-02-24T23:59:59.000Z

465

Molecular doping for control of gate bias stress in organic thin film transistors  

SciTech Connect (OSTI)

The key active devices of future organic electronic circuits are organic thin film transistors (OTFTs). Reliability of OTFTs remains one of the most challenging obstacles to be overcome for broad commercial applications. In particular, bias stress was identified as the key instability under operation for numerous OTFT devices and interfaces. Despite a multitude of experimental observations, a comprehensive mechanism describing this behavior is still missing. Furthermore, controlled methods to overcome these instabilities are so far lacking. Here, we present the approach to control and significantly alleviate the bias stress effect by using molecular doping at low concentrations. For pentacene and silicon oxide as gate oxide, we are able to reduce the time constant of degradation by three orders of magnitude. The effect of molecular doping on the bias stress behavior is explained in terms of the shift of Fermi Level and, thus, exponentially reduced proton generation at the pentacene/oxide interface.

Hein, Moritz P., E-mail: hein@iapp.de; Lüssem, Björn; Jankowski, Jens; Tietze, Max L.; Riede, Moritz K. [Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Straße 1, 01069 Dresden (Germany)] [Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Straße 1, 01069 Dresden (Germany); Zakhidov, Alexander A. [Fraunhofer COMEDD, Maria-Reiche-Str. 2, 01109 Dresden (Germany)] [Fraunhofer COMEDD, Maria-Reiche-Str. 2, 01109 Dresden (Germany); Leo, Karl [Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Straße 1, 01069 Dresden (Germany) [Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Straße 1, 01069 Dresden (Germany); Fraunhofer COMEDD, Maria-Reiche-Str. 2, 01109 Dresden (Germany)

2014-01-06T23:59:59.000Z

466

Calibration of a gated flat field spectrometer as a function of x-ray intensity  

SciTech Connect (OSTI)

We present an experimental determination of the response of a gated flat-field spectrometer at the Shenguang-II laser facility. X-rays were emitted from a target that was heated by laser beams and then were divided into different intensities with a step aluminum filter and collected by a spectrometer. The transmission of the filter was calibrated using the Beijing Synchrotron Radiation Facility. The response characteristics of the spectrometer were determined by comparing the counts recorded by the spectrometer with the relative intensities of the x-rays transmitted through the step aluminum filter. The response characteristics were used to correct the transmission from two shots of an opacity experiment using the same samples. The transmissions from the two shots are consistent with corrections, but discrepant without corrections.

Xiong, Gang; Yang, Guohong; Li, Hang; Zhang, Jiyan, E-mail: zhangjiyanzjy@sina.com; Zhao, Yang; Hu, Zhimin; Wei, Minxi; Qing, Bo; Yang, Jiamin; Liu, Shenye; Jiang, Shaoen [Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-986, Mianyang 621900 (China)] [Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-986, Mianyang 621900 (China)

2014-04-15T23:59:59.000Z

467

Important technology considerations for space nuclear power systems  

SciTech Connect (OSTI)

This paper discusses the technology considerations that guide the development of space nuclear power sources (NPS) by the Department of Energy (DOE) to meet a wide variety of applications. The Department and its predecessor agencies have been developing NPS since the 1950s and producing NPS for spacecraft for the National Aeronautics and Space Administration (NASA) and the Department of Defense (DOD) since the early 1960s. No one nuclear power type, isotope or reactor, will suffice over the entire range of mission power required. Nor is one type of power conversion system, be it static or dynamic, the optimum choice of all space nuclear power system applications. There is a need for DOE, in partnership with its users, NASA and DOD, to develop a variety of types of space nuclear power sources -- isotope-static, isotope-dynamic, reactor-static, and reactor-dynamic -- to meet mission requirements well into the next century. 2 figs., 1 tab.

Kuspa, J.P.; Wahlquist, E.J.; Bitz, D.A.

1988-03-01T23:59:59.000Z

468

Passive Solar Space Heat | Open Energy Information  

Open Energy Info (EERE)

Passive Solar Space Heat Incentives Retrieved from "http:en.openei.orgwindex.php?titlePassiveSolarSpaceHeat&oldid26718...

469

Radioisotopes: Energy for Space Exploration  

SciTech Connect (OSTI)

Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

Carpenter, Bob; Green, James; Bechtel, Ryan

2011-01-01T23:59:59.000Z

470

Radioisotopes: Energy for Space Exploration  

ScienceCinema (OSTI)

Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

Carpenter, Bob; Green, James; Bechtel, Ryan

2013-05-29T23:59:59.000Z

471

Portfolio Manager Space Type Discussion  

Broader source: Energy.gov [DOE]

This presentation, given through the DOE's Technical Assitance Program (TAP), provides a discussion about space/type in regards to the Portfolio Manager Initiative.

472

?-Conotoxin KIIIA Derivatives with Divergent Affinities versus Efficacies in Blocking Voltage-Gated Sodium Channels  

Science Journals Connector (OSTI)

Because of their facile chemical synthesis, KIIIA analogues that had as a core structure the disulfide-depleted KIIIA[C1A,C2U,C9A,C15U] (where U is selenocysteine) or ddKIIIA were used. ... Abbreviations: dap, diaminoproprionate; ddKIIIA, disulfide-depleted ?-conotoxin KIIIA, i.e., KIIIA[C1A,C2U,C9A,C5U], where U is selenocysteine; ddKIIIA[K7X], ddKIIIA with residue X in position 7; ddKIIIA·NaV, binary complex of ddKIIIA and NaV; ddKIIIA[K7X]·NaV, binary complex of ddKIIIA[K7X] and NaV; ddKIIIA[K7X]·TTX·NaV, ternary complex of ddKIIIA[K7X], TTX, and NaV; GIIIA, ?-conotoxin GIIIA; INa, sodium current; KIIIA, ?-conotoxin KIIIA; KIIIA[K7A], ?-conotoxin KIIIA[K7A]; NaV, ?-subunit of the voltage-gated sodium channel; rINa, residual sodium current; TTX, tetrodotoxin; TTX·NaV, binary complex of TTX and NaV; VGSC, voltage-gated sodium channel. ... The long moniker of ddKIIIA[K7X] is KIIIA[C1A,C2U,K7X,C9A,C15U], where residue X at position 7 was either Ala, Asp, Gly, Leu, Lys (i.e., ddKIIIA), Phe, Ser, Thr, Val, or diaminoproprionate (dap). ...

Min-Min Zhang; Tiffany S. Han; Baldomero M. Olivera; Grzegorz Bulaj; Doju Yoshikami

2010-05-11T23:59:59.000Z

473

Mechanisms for plasma etching of HfO{sub 2} gate stacks with Si selectivity and photoresist trimming  

SciTech Connect (OSTI)

To minimize leakage currents resulting from the thinning of the insulator in the gate stack of field effect transistors, high-dielectric constant (high-k) metal oxides, and HfO{sub 2} in particular, are being implemented as a replacement for SiO{sub 2}. To speed the rate of processing, it is desirable to etch the gate stack (e.g., metal gate, antireflection layers, and dielectric) in a single process while having selectivity to the underlying Si. Plasma etching using Ar/BCl{sub 3}/Cl{sub 2} mixtures effectively etches HfO{sub 2} while having good selectivity to Si. In this article, results from integrated reactor and feature scale modeling of gate-stack etching in Ar/BCl{sub 3}/Cl{sub 2} plasmas, preceded by photoresist trimming in Ar/O{sub 2} plasmas, are discussed. It was found that BCl{sub n} species react with HfO{sub 2}, which under ion impact, form volatile etch products such as B{sub m}OCl{sub n} and HfCl{sub n}. Selectivity to Si is achieved by creating Si-B bonding as a precursor to the deposition of a BCl{sub n} polymer which slows the etch rate relative to HfO{sub 2}. The low ion energies required to achieve this selectivity then challenge one to obtain highly anisotropic profiles in the metal gate portion of the stack. Validation was performed with data from literature. The effect of bias voltage and key reactant probabilities on etch rate, selectivity, and profile are discussed.

Shoeb, Juline; Kushner, Mark J. [Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011 (United States); Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)

2009-11-15T23:59:59.000Z

474

Physics in discrete spaces (A): Space-Time organization  

E-Print Network [OSTI]

We put forward a model of discrete physical space that can account for the structure of space- time, give an interpretation to the postulates of quantum mechanics and provide a possible explanation to the organization of the standard model of particles.

P. Peretto

2010-12-29T23:59:59.000Z

475

Atmospheric,OceanicandSpaceSciences Atmospheric, Oceanic & Space Sciences  

E-Print Network [OSTI]

of Michigan Space Research Building 2455 Hayward Street Ann Arbor, MI 48109-2143 aoss_um@umich.edu http Arbor ©The Regents of the University of Michigan Mark Schlissel, ex officio Sequential Graduate / under/Thermosphere Physics Planetary Magnetospheres Solar & Heliospheric Physics Space Weather Aeronomy For Faculty involved

Eustice, Ryan

476

John C. Stennis Space Center History of Stennis Space Center  

E-Print Network [OSTI]

Laboratory Propulsion Test Lead Center SSME Test Resp. 5/94 Stennis Space Center Estab. (5/88) Stennis Space · Dept. of Marine Science · Major Contractors · Pratt and Whitney Rocketdyne · Jacobs Technology Inc. · A, National Data Buoy Center · NOAA National Marine Fisheries Service · NOAA National Coastal Data Development

Waliser, Duane E.

477

UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP  

E-Print Network [OSTI]

" miniaturised sensors, · low cost - high return due to development derived from Solar Orbiter EAS and Tech Outline · What is L-DEPP? · How are we involved? · Low-energy Electron and Ion Analyser (LEIA) · Why is LEIA necessary? · Potential UK benefits · Summary #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE

Anand, Mahesh

478

Overview of Space Business Space & Integrated Defense Systems  

E-Print Network [OSTI]

collaboration Fostering of domestic space industry Enhance use space for national security purpose Focusing and Europe by becoming representatives of those foreign entities Launch vehicles Satellites Ground segment provider, SCC, along with other Mitsubishi group companies Further extended into satellite-based earth

479

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Released: September, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings* ........................... 3,037 115 397 384 52 1,143 22 354 64 148 357 Building Floorspace (Square Feet) 1,001 to 5,000 ........................... 386 19 43 18 11 93 7 137 8 12 38 5,001 to 10,000 .......................... 262 12 35 17 5 83 4 56 6 9 35 10,001 to 25,000 ........................ 407 20 46 44 8 151 3 53 9 19 54 25,001 to 50,000 ........................ 350 15 55 50 9 121 2 34 7 16 42 50,001 to 100,000 ...................... 405 16 57 65 7 158 2 29 6 18 45 100,001 to 200,000 .................... 483 16 62 80 5 195 1 24 Q 31 56 200,001 to 500,000 .................... 361 8 51 54 5 162 1 9 8 19 43 Over 500,000 ............................. 383 8 47 56 3 181 2 12 8 23 43 Principal Building Activity

480

As you prepare for your upcoming beam time, please be aware that construction is planned to update SLAC Gate 17 with RFID proximity card access hardware and to change the stairs next to the Security hut to an ADA compliant ramp. Please forward this to your proposal collaborators (and ensure that all users have registered and completed training before they arrive). This construction is scheduled to begin Tuesday 5/28 and be completed by 6/28. During this construction, access to the LCLS and SSRL buildings and experimental facilities will be provided as follows: VEHICLES ONLY THROUGH GATE 17 5/28-6/28 0600-1530 (6 am-3:30 pm) Construction Zone. Only VEHICLE traffic will be allowed access through Gate 17 and flagman will provide traffic control. 1530-1800 (3:30-6:00 pm) Assumes construction will have stopped for the day; both traffic lanes will be open for vehicles. 1800-0600 (6 pm-6 am) As now, Gate 17 will be closed or barricaded overnight. PEDESTRIANS ONLY THROUGH GATE 16 5/28-6/28 The pedestrian turnstile at Gate 16A will not change. The turnstile is available for pedestrian use 24/7 as long as the individual has a valid SLAC ID badge (and there is a guard at Gate 30 to 'buzz' them through). 0700-1600 (6 am-4 pm) Pedestrians who would normally walk through Gate 17 will instead follow the detour to Gate 16 swing gate which will be unlocked and staffed by Security. A valid SLAC ID badge is needed to enter; new users without IDs will be allowed to proceed for check-in and badging after confirmation with the User Research Administration Office (see detour map attached). FYI - After the construction is completed and proximity card readers are fully functional, users and staff will enter Gates 17 and 30 using an activated RFID proximity card. More details to follow.  

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

Building 137 Building 137 Bldg. 270 CONSTRUCTION IMPACTS PEDESTRIAN AND VEHICLE ACCESS THROUGH SLAC SECURITY GATE 17 ~ May 28-June 28, 2013 The stairs next to the Gate 17 Guard House will be replaced with an ADA compliant ramp; the turnstile and fence at SLAC Gate 17 will be updated with RFID proximity card access hardware. During this construction, access beyond the fence, including the SSRL and LCLS buildings and user facilities will be provided as follows: VEHICLES ONLY THROUGH GATE 17 Security will continue to check for valid ID badges. 0600-1530 (6 am-3:30 pm) - Construction Zone. Only VEHICLE traffic will be allowed access through Gate 17 and flagman will provide traffic control. Security will 1530-1800 (3:30-6:00 pm) - Assuming construction has

Note: This page contains sample records for the topic "range gate spacing" 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

Direct observation of bias-dependence potential distribution in metal/HfO{sub 2} gate stack structures by hard x-ray photoelectron spectroscopy under device operation  

SciTech Connect (OSTI)

Although gate stack structures with high-k materials have been extensively investigated, there are some issues to be solved for the formation of high quality gate stack structures. In the present study, we employed hard x-ray photoelectron spectroscopy in operating devices. This method allows us to investigate bias dependent electronic states, while keeping device structures intact. Using this method, we have investigated electronic states and potential distribution in gate metal/HfO{sub 2} gate stack structures under device operation. Analysis of the core levels shifts as a function of the bias voltage indicated that a potential drop occurred at the Pt/HfO{sub 2} interface for a Pt/HfO{sub 2} gate structure, while a potential gradient was not observed at the Ru/HfO{sub 2} interface for a Ru/HfO{sub 2} gate structure. Angle resolved photoelectron spectroscopy revealed that a thicker SiO{sub 2} layer was formed at the Pt/HfO{sub 2} interface, indicating that the origin of potential drop at Pt/HfO{sub 2} interface is formation of the thick SiO{sub 2} layer at the interface. The formation of the thick SiO{sub 2} layer at the metal/high-k interface might concern the Fermi level pinning, which is observed in metal/high-k gate stack structures.

Yamashita, Y. [National Institute for Materials Science, Advanced Electric Materials Center, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); National Institute for Materials Science, NIMS Beamline Station at SPring-8, 1-1-1 Kôto, Sayo-cho, Sayo-gun, Hyogo 679-5148 (Japan); Yoshikawa, H.; Kobayashi, K. [National Institute for Materials Science, NIMS Beamline Station at SPring-8, 1-1-1 Kôto, Sayo-cho, Sayo-gun, Hyogo 679-5148 (Japan); Chikyo, T. [National Institute for Materials Science, Advanced Electric Materials Center, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

2014-01-28T23:59:59.000Z

482

OPTIMAL PARAMETERS OF THE PHOTOCATHODE GUN SPACE CHARGE TO IMPROVE BEAM QUALITY  

E-Print Network [OSTI]

OPTIMAL PARAMETERS OF THE PHOTOCATHODE GUN SPACE CHARGE TO IMPROVE BEAM QUALITY M. Fedurin# , C National Laboratory (BNL ATF) operates with 5 MeV photocathode gun and 70 MeV linac for different range to the electron bunch in the gun with space charge affecting on the own bunch length and transverse profile

Brookhaven National Laboratory

483

Space Weather: Its Effect on GNSS, DGNSS, SBAS, and Flight Inspection  

E-Print Network [OSTI]

1 Space Weather: Its Effect on GNSS, DGNSS, SBAS, and Flight Inspection J. David Powell, Aero, CA Abstract Space weather, primarily the ionosphere, produces the largest GNSS errors. This paper reviews the ionosphere's effect on satellite ranging measurements and discusses how the effect

Stanford University

484

Space Telescope Programs Hubble Observatory  

E-Print Network [OSTI]

Assurance/Configuration Management Mr. Christopher Scholz EAG QA Manager #12;Space Telescope Programs Hubble · COS-UCB-002 QA Implementation Plan Released December 1, 1999 · COS-UCB-003 CM Plan released DecemberSpace Telescope Programs Hubble Observatory HST-COS FUV PER 11/8/00 FUV Detector System Quality

Colorado at Boulder, University of

485

INDUCTION, SPACE AND POSITIVE ETHICS  

E-Print Network [OSTI]

INDUCTION, SPACE AND POSITIVE ETHICS MARVIN E. KIRSH One may purport that ones' awareness of space of it are elemental --i.e. conceptually non reducible and that from which all emanates. The words non-ethical induction, entailing the existence of ethical induction, if compared in a corresponding manner (to

Paris-Sud XI, Université de

486

National Aeronautics and Space Administration  

E-Print Network [OSTI]

Vehicle Mission Concept Review Complete Space Vehicle SRR Complete Partial-Throttle RBS Engine TCA Test Engine Test Completed Subscale Prop Tank Assembly Review March 2014 Space Vehicle Subsystem interim's Commercial Crew Program (CCP) is facilitating the development of safe, reliable and cost-effective human

Waliser, Duane E.

487

National Aeronautics and Space Administration  

E-Print Network [OSTI]

human-made object to enter the vast expanses between the stars. It was hardly the first history. To toast the interstellar event, TV's Stephen Colbert invited Voyager project scientist Ed Stone on his they look into deep space? For Planck, a European space telescope with technology aboard from JPL

Waliser, Duane E.

488

Wide tracking range, auto ranging, low jitter phase lock loop for swept and fixed frequency systems  

DOE Patents [OSTI]

The present invention provides a wide tracking range phase locked loop (PLL) circuit that achieves minimal jitter in a recovered clock signal, regardless of the source of the jitter (i.e. whether it is in the source or the transmission media). The present invention PLL has automatic harmonic lockout detection circuitry via a novel lock and seek control logic in electrical communication with a programmable frequency discriminator and a code balance detector. (The frequency discriminator enables preset of a frequency window of upper and lower frequency limits to derive a programmable range within which signal acquisition is effected. The discriminator works in combination with the code balance detector circuit to minimize the sensitivity of the PLL circuit to random data in the data stream). In addition, the combination of a differential loop integrator with the lock and seek control logic obviates a code preamble and guarantees signal acquisition without harmonic lockup. An adaptive cable equalizer is desirably used in combination with the present invention PLL to recover encoded transmissions containing a clock and/or data. The equalizer automatically adapts to equalize short haul cable lengths of coaxial and twisted pair cables or wires and provides superior jitter performance itself. The combination of the equalizer with the present invention PLL is desirable in that such combination permits the use of short haul wires without significant jitter.

Kerner, Thomas M. (Manorville, NY)

2001-01-01T23:59:59.000Z

489

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Revised: December, 2008 Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings ............................. 91.0 33.0 7.2 6.1 7.0 18.7 2.7 5.3 1.0 2.2 7.9 Building Floorspace (Square Feet) 1,001 to 5,000 ........................... 99.0 30.7 6.7 2.7 7.1 13.9 7.1 19.9 1.1 1.7 8.2 5,001 to 10,000 .......................... 80.0 30.1 5.5 2.6 6.1 13.6 5.2 8.2 0.8 1.4 6.6 10,001 to 25,000 ........................ 71.0 28.2 4.5 4.1 4.1 14.5 2.3 4.5 0.8 1.6 6.5 25,001 to 50,000 ........................ 79.0 29.9 6.8 5.9 6.3 14.9 1.7 3.9 0.8 1.8 7.1 50,001 to 100,000 ...................... 88.7 31.6 7.6 7.6 6.5 19.6 1.7 3.4 0.7 2.0 8.1 100,001 to 200,000 .................... 104.2 39.1 8.2 8.9 7.9 22.9 1.1 2.9 Q 3.2 8.7 200,001 to 500,000 ....................

490

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Revised: December, 2008 Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings ............................. 91.0 33.0 7.2 6.1 7.0 18.7 2.7 5.3 1.0 2.2 7.9 Building Floorspace (Square Feet) 1,001 to 5,000 ........................... 99.0 30.7 6.7 2.7 7.1 13.9 7.1 19.9 1.1 1.7 8.2 5,001 to 10,000 .......................... 80.0 30.1 5.5 2.6 6.1 13.6 5.2 8.2 0.8 1.4 6.6 10,001 to 25,000 ........................ 71.0 28.2 4.5 4.1 4.1 14.5 2.3 4.5 0.8 1.6 6.5 25,001 to 50,000 ........................ 79.0 29.9 6.8 5.9 6.3 14.9 1.7 3.9 0.8 1.8 7.1 50,001 to 100,000 ...................... 88.7 31.6 7.6 7.6 6.5 19.6 1.7 3.4 0.7 2.0 8.1 100,001 to 200,000 .................... 104.2 39.1 8.2 8.9 7.9 22.9 1.1 2.9 Q 3.2 8.7 200,001 to 500,000 ....................

491

University of California, Santa Cruz Space Management Principles  

E-Print Network [OSTI]

for Academic Office Space...................................................... 3 Criteria for Library Space#12;#12;University of California, Santa Cruz Space Management Principles Section Page Space ..................................................................................... 1 3. Space Management Principles

California at Santa Cruz, University of

492

Note: Design and construction of a simple and reliable printed circuit board-substrate Bradbury-Nielsen gate for ion mobility spectrometry  

Science Journals Connector (OSTI)

A less laborious structure-simple and performance-reliable printed circuit board (PCB) based Bradbury-Nielsen gate for high-resolution ion mobility spectrometry was introduced and investigated. The gate substrate was manufactured using a PCB etching process with small holes (? 0.1 mm) drilled along the gold-plated copper lines. Two interdigitated sets of rigid stainless steel spring wire (? 0.1 mm) that stands high temperature and guarantees performance stability were threaded through the holes. Our homebuilt ion mobilityspectrometer mounted with the gate gave results of about 40 for resolution while keeping a signal intensity of over 0.5 nano-amperes.

Yongzhai Du; Huaiwen Cang; Weiguo Wang; Fenglei Han; Chuang Chen; Lin Li; Keyong Hou; Haiyang Li

2011-01-01T23:59:59.000Z

493

Low dimensional long range topological charge structure in the QCD vacuum  

SciTech Connect (OSTI)

While sign-coherent 4-dimensional structures cannot dominate topological charge fluctuations in the QCD vacuum at all scales due to reflection positivity, it is possible that enhanced coherence exists over extended space-time regions of lower dimension. Using the overlap Dirac operator to calculate topological charge density, we present evidence for such structure in pure-glue SU(3) lattice gauge theory. It is found that a typical equilibrium configuration is dominated by two oppositely-charged sign-coherent connected structures (``sheets'') covering about 80% of space-time. Each sheet is built from elementary 3-d cubes connected through 2-d faces, and approximates a low-dimensional curved manifold (or possibly a fractal structure) embedded in the 4-d space. At the heart of the sheet is a ``skeleton'' formed by about 18% of the most intense space-time points organized into a global long-range structure, involving connected parts spreading over maximal possible distances. We find that the skeleton is locally 1-dimensional and propose that its geometrical properties might be relevant for understanding the possible role of topological charge fluctuations in the physics of chiral symmetry breaking.

I. Horvath; S.J. Dong; T. Draper; F.X. Lee; K.F. Liu; N. Mathur; H.B. Thacker; J.B. Zhang

2003-12-01T23:59:59.000Z

494

Fact #797: September 16, 2013 Driving Ranges for Electric Vehicles  

Broader source: Energy.gov [DOE]

The figure below shows the Environmental Protection Agency (EPA) driving ranges for electric vehicles (EVs) offered for the 2013 model year (MY). The Tesla Model S has the longest range of any EV...

495

EM Tackles Cleanup at Tonopah Test Range | Department of Energy  

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

Tackles Cleanup at Tonopah Test Range EM Tackles Cleanup at Tonopah Test Range September 30, 2014 - 12:00pm Addthis Field technicians survey a shaker used in past cleanup...

496

Hydrothermal monitoring data from the Cascade Range, northwestern United States  

E-Print Network [OSTI]

Hydrothermal monitoring data from the Cascade Range, northwestern United States By S.E. Ingebritsen., and Evans, W.C., 2014, Hydrothermal monitoring data from the Cascade Range, northwestern United States: U ...................................................................................................................................27 (8) Carbonate springs

497

Space Travel Space Travel: Past, Present and Future  

E-Print Network [OSTI]

;#12;NASA's Planetary Exploration Program ...and dropped probes into planet atmospheres, flown through comet tails, landed on 1 planet, two moons, and an asteroid. #12;Space is being opened to the private sector

Shirley, Yancy

498

from the project evaluation indicated that the porosity, void space  

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

the project evaluation indicated that the porosity, void space, the project evaluation indicated that the porosity, void space, and permeability of the target formations were lower than expected, and that the pressure in the formations increased with low injection rates. These results confirm the complex nature of the formations and demonstrate the importance of extensive drilling, formation evaluation, and testing to characterize and identify appropriate formations for CO 2 storage within the Appalachian Basin prior to injection. In addition to providing a significant geologic understanding of the formation, the project also provided several "lessons learned," ranging from practices

499

Shift-modulation invariant spaces on LCA groups  

E-Print Network [OSTI]

A $(K,\\Lambda)$ shift-modulation invariant space is a subspace of $L^2(G)$, that is invariant by translations along elements in $K$ and modulations by elements in $\\Lambda$. Here $G$ is a locally compact abelian group, and $K$ and $\\Lambda$ are closed subgroups of $G$ and the dual group $\\hat G$, respectively. In this article we provide a characterization of shift-modulation invariant spaces in this general context when $K$ and $\\Lambda$ are uniform lattices. This extends previous results known for $L^2(\\R^d)$. We develop fiberization techniques and suitable range functions adapted to LCA groups needed to provide the desired characterization.

Cabrelli, Carlos

2011-01-01T23:59:59.000Z

500

Mercury: Supporting Scalable Multi-Attribute Range Queries  

E-Print Network [OSTI]

Mercury: Supporting Scalable Multi-Attribute Range Queries Ashwin R. Bharambe Mukesh Agrawal 15213 Abstract This paper presents the design of Mercury, a scalable protocol for supporting multi-attribute range- based searches. Mercury differs from previous range-based query systems in that it supports mul

Keinan, Alon