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Note: This page contains sample records for the topic "l-lake sluice gate" from the National Library of EnergyBeta (NLEBeta).
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1

W-320 waste retrieval sluicing system transfer line flushing volume and frequency calculation  

DOE Green Energy (OSTI)

The calculations contained in this analysis document establish the technical basis for the volume, frequency, and flushing fluid to be utilized for routine Waste Retrieval Sluicing System (WRSS) process line flushes. The WRSS was installed by Project W-320, Tank 241-C-106 Sluicing. The double contained pipelines being flushed have 4 inch stainless steel primary pipes. The flushes are intended to prevent hydrogen buildup in the transfer lines and to provide ALARA conditions for maintenance personnel.

Bailey, J.W.

1997-04-07T23:59:59.000Z

2

W-320 waste retrieval sluicing system transfer line flushing volume and frequency calculation  

DOE Green Energy (OSTI)

The calculations contained in this analysis document establish the technical basis for the volume, frequency, and flushing fluid to be utilized for routine Waste Retrieval Sluicing System (WRSS) process line flushes. The WRSS was installed by Project W-320, Tank 24 I-C-106 Sluicing. The double contained pipelines being flushed have 4 inch stainless steel primary pipes. The flushes are intended to prevent hydrogen build up in the transfer lines and to provide ALARA conditions for maintenance personnel.

Bailey, J.W.

1997-11-05T23:59:59.000Z

3

Aerosol characteristics in the offgas from a pilot-scale sluicing operation  

SciTech Connect

A pilot-scale study was performed to simulate conditions anticipated during sluicing operations to retrieve waste in single-shell Tank 241-C-106 at the US Department of Energy`s Hanford Site in southeastern Washington. The objective of the study was to identify and characterize the potential aerosol source term at the inlet of the headspace exhaust ventilation system during sluicing operations. The information is needed to support decisions for components to be used in the full-scale operation. A secondary objective was to qualitatively evaluate the visibility during sluicing. Three simulated sluicing tests were performed in the 336 Building`s quarter-scale waste tank facility located at Hanford. Scaling relationships were used to guide modifications to the quarter-scale tank to accommodate tests that simulated tank geometry, sluicing, and ventilation conditions in the full-scale tank. Simulated sluicing fluids were targeted on solid and liquid surfaces during the tests. Test conditions were monitored, and aerosol measurements were made in the offgas ventilation duct. Also during the tests, an in-tank camera was used to monitor visibility.

Ligotke, M.W.; Whyatt, G.A.; Beckette, M.R.

1995-01-01T23:59:59.000Z

4

Waste retrieval sluicing system data acquisition system acceptance test report  

SciTech Connect

This document describes the test procedure for the Project W-320 Tank C-106 Sluicing Data Acquisition System (W-320 DAS). The Software Test portion will test items identified in the WRSS DAS System Description (SD), HNF-2115. Traceability to HNF-2115 will be via a reference that follows in parenthesis, after the test section title. The Field Test portion will test sensor operability, analog to digital conversion, and alarm setpoints for field instrumentation. The W-320 DAS supplies data to assist thermal modeling of tanks 241-C-106 and 241-AY-102. It is designed to be a central repository for information from sources that would otherwise have to be read, recorded, and integrated manually. Thus, completion of the DAS requires communication with several different data collection devices and output to a usable PC data formats. This test procedure will demonstrate that the DAS functions as required by the project requirements stated in Section 3 of the W-320 DAS System Description, HNF-2115.

Bevins, R.R.

1998-07-31T23:59:59.000Z

5

Free-surface flow simulations for discharge-based operation of hydraulic structure gates  

E-Print Network (OSTI)

We combine non-hydrostatic flow simulations of the free surface with a discharge model based on elementary gate flow equations for decision support in operation of hydraulic structure gates. A water level-based gate control used in most of today's general practice does not take into account the fact that gate operation scenarios producing similar total discharged volumes and similar water levels may have different local flow characteristics. Accurate and timely prediction of local flow conditions around hydraulic gates is important for several aspects of structure management: ecology, scour, flow-induced gate vibrations and waterway navigation. The modelling approach is described and tested for a multi-gate sluice structure regulating discharge from a river to the sea. The number of opened gates is varied and the discharge is stabilized with automated control by varying gate openings. The free-surface model was validated for discharge showing a correlation coefficient of 0.994 compared to experimental data. A...

Erdbrink, C D; Sloot, P M A

2012-01-01T23:59:59.000Z

6

CX-010121: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

21: Categorical Exclusion Determination 21: Categorical Exclusion Determination CX-010121: Categorical Exclusion Determination 685-G Par Pond and 686-G L-Lake Sluice Gate Conduit Cleanouts/Inspections CX(s) Applied: B1.3 Date: 03/21/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office The purpose of this activity is to perform gate checks and clear weeds and other debris from the conduits at Par Pond Dam and Steel Creek Dam (L-Lake), in part to facilitate Federal Energy Regulatory Commission inspection requirements. This will be accomplished at Par Pond by opening the sluice gate and increasing the flow from the normal 10 CFS incrementally to a fully open flow of 2000 CFS. Flow will be increased by opening the sluice gate in stages of 50% per hour until the gate is fully

7

U.S. Department of Energy Categorical Exclusion Determination Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

685-G PAR Pond and 686-G L-Lake Sluice Gate Conduit Cleanouts/Inspections 685-G PAR Pond and 686-G L-Lake Sluice Gate Conduit Cleanouts/Inspections Savannah River Site Aiken/Aiken/South Carolina The purpose of this activity is to perform gate checks and clear weeds and other debris from the conduits at Par Pond Dam and Steel Creek Dam (L-Lake), in part to facilitate Federal Energy Regulatory Commission inspection requirements. This will be accomplished at Par Pond by opening the sluice gate and increasing the flow from the normal 10 CFS incrementally to a fully open flow of 2000 CFS. Flow will be increased by opening the sluice gate in stages of 50% per hour until the gate is fully open. The gate will remain fully open for 5 minutes, whereupon the gate will be closed to its normal position and flow of 10 CFS. At Steel Creek Dam, this will be accomplished in the same manner except normal flow is 4.5

8

U.S. Department of Energy Categorical Exclusion Determination Form  

NLE Websites -- All DOE Office Websites (Extended Search)

685-G PAR Pond and 686-G L-Lake Sluice Gate Conduit Cleanouts/Inspections 685-G PAR Pond and 686-G L-Lake Sluice Gate Conduit Cleanouts/Inspections Savannah River Site Aiken/Aiken/South Carolina The purpose of this activity is to perform gate checks and clear weeds and other debris from the conduits at Par Pond Dam and Steel Creek Dam (L-Lake), in part to facilitate Federal Energy Regulatory Commission inspection requirements. This will be accomplished at Par Pond by opening the sluice gate and increasing the flow from the normal 10 CFS incrementally to a fully open flow of 2000 CFS. Flow will be increased by opening the sluice gate in stages of 50% per hour until the gate is fully open. The gate will remain fully open for 5 minutes, whereupon the gate will be closed to its normal position and flow of 10 CFS. At Steel Creek Dam, this will be accomplished in the same manner except normal flow is 4.5

9

CX-002205: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

205: Categorical Exclusion Determination 205: Categorical Exclusion Determination CX-002205: Categorical Exclusion Determination 686-G Steel Creek Dam (L-Lake) Inspection CX(s) Applied: B1.3 Date: 04/16/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office The purpose of this activity is to perform gate checks and inspect the operating mechanisms of the gates at Steel Creek Dam (L-Lake). This will be accomplished by opening the sluice gate and increasing the flow from the normal 4.5 cubic feet per second (CFS) incrementally to a fully open flow of 1400 CFS. Flow will be increased by opening the sluice gate in stages of 50% per hour until the gate is fully open. The gate will remain fully open for 5 minutes, whereupon the gate will be closed to its normal position and

10

Steel Creek primary producers: Periphyton and seston, L-Lake/Steel Creek Biological Monitoring Program, January 1986--December 1991  

Science Conference Proceedings (OSTI)

The Savannah River Site (SRS) encompasses 300 sq mi of the Atlantic Coastal Plain in west-central South Carolina. Five major tributaries of the Savannah River -- Upper Three Runs Creek, Four Mile Creek, Pen Branch, Steel Creek, and Lower Three Runs Creek -- drain the site. In 1985, L Lake, a 400-hectare cooling reservoir, was built on the upper reaches of Steel Creek to receive effluent from the restart of L-Reactor and to protect the lower reaches from thermal impacts. The Steel Creek Biological Monitoring Program was designed to assess various components of the system and identify and changes due to the operation of L-Reactor or discharge from L Lake. An intensive ecological assessment program prior to the construction of the lake provided baseline data with which to compare data accumulated after the lake was filled and began discharging into the creek. The Department of Energy must demonstrate that the operation of L-Reactor will not significantly alter the established aquatic ecosystems. This report summarizes the results of six years` data from Steel Creek under the L-Lake/Steel Creek Monitoring Program. L Lake is discussed separately from Steel Creek in Volumes NAI-SR-138 through NAI-SR-143.

Bowers, J.A. [Westinghouse Savannah River Co., Aiken, SC (United States); Toole, M.A.; van Duyn, Y. [Normandeau Associates Inc., New Ellenton, SC (United States)

1992-02-01T23:59:59.000Z

11

Review of Waste Retrieval Sluicing System Operations and Data for Tanks 241-C-106 and 241-AY-102  

Science Conference Proceedings (OSTI)

Sluicing operations were performed to retrieve high-heat sludge from single-shell tank 241-C-106 and transfer it to double-shell tank 241-AY-102 using the Waste Retrieval Sluicing System. This eliminated the high-heat safety issue for C-106 and demonstrated a technology for retrieval of single-shell tank waste. Both AY-102 and C-106 were monitored during the waste transfer operations, providing a clear picture of general trends in each tank. Specific issues addressed were evaluation of the data for evidence of flammable gas accumulation in AY-102 and thermal performance of AY-102 under the increasing heat load.

Cuta, Judith M.; Carothers, Kelly G.; Damschen, Dennis W.; Kuhn, William L.; Lechelt, Jeanne A.; Sathyanarayana, Kurabalakota; Stauffer, Leslie A.

2000-09-26T23:59:59.000Z

12

Project W-320, 241-C-106 sluicing: Construction specification W-320-C5  

Science Conference Proceedings (OSTI)

This supporting document has been prepared to make the construction specifications for Project W-320 readily available. Project W-320, Waste Retrieval Sluicing System (WRSS), specification is for procurement, fabrication and installation of equipment at the C Tank Farm, including Operator Station and some equipment just outside the C Tank Farm fence, necessary to support the sluicing operation. Work consists of furnishing labor, equipment, and materials to provide the means to procure materials and equipment, fabricate items, excavate and place concrete, and install equipment, piping, wiring, and structures in accordance with the Contract Documents. Major work elements include: Excavation for process and fire protection piping, electrical conduit trenches, and foundations for small structures; Placement of concrete cover blocks, foundations, and equipment pads; Procurement and installation of double walled piping, electrical conduit, fire and raw water piping, chilled water piping, and electrical cable; Procurement and installation of above-ground ventilation system piping between the (HVAC) Process building and Tank C-106; Core drill existing concrete; Furnish and installation of electrical distribution equipment; Installation of the concrete foundation, and assembly installation of the two Seismic Shutdown Systems with Environmental Enclosures; Fabrication and installation of in-pit pipe jumpers, including related valves, instruments and wiring; and Installation of a vertical submersible pump, horizontal booster pump, and winch assembly into tank access riser pits.

Bailey, J.W.

1998-07-20T23:59:59.000Z

13

Project W-320, 241-C-106 sluicing: Construction specification W-320-C7  

Science Conference Proceedings (OSTI)

This supporting document has been prepared to make the construction specifications for Project W-320 readily available. Project W-320, Waste Retrieval Sluicing System (WRSS), specification is for procurement, fabrication and installation of equipment at the C Tank Farm, including Operator Station and some equipment just outside the C Tank Farm fence, necessary to support the sluicing operation. Work consists of furnishing labor, equipment, and materials to provide the means to procure materials and equipment, fabricate items, excavate and place concrete, and install equipment, piping, wiring, and structures in accordance with the Contract Documents. Major work elements include: Excavation for process and fire protection piping, electrical conduit trenches, and foundations for small structures; Placement of concrete cover blocks, foundations, and equipment pads; Procurement and installation of double walled piping, electrical conduit, fire and raw water piping, chilled water piping, and electrical cable; Procurement and installation of above-ground ventilation system piping between the (HVAC) Process building and Tank C-106; Core drill existing concrete; Furnish and installation of electrical distribution equipment; Installation of the concrete foundation, and assembly installation of the two Seismic Shutdown Systems with Environmental Enclosures; Fabrication and installation of in-pit pipe jumpers, including related valves, instruments and wiring; and Installation of a vertical submersible pump, horizontal booster pump, and winch assembly into tank access riser pits.

Bailey, J.W.

1998-07-20T23:59:59.000Z

14

David Gates home page  

NLE Websites -- All DOE Office Websites (Extended Search)

Gates home page http:www.pppl.gov%7EdgatesSiteDr.DavidA.Gates.html (1 of 4) 8302012 9:47:58 AM David Gates home page Dr. David A. Gates Princeton Plasma Physics...

15

Tank vapor sampling and analysis data package for tank 241-C-106 waste retrieval sluicing system process test phase III  

Science Conference Proceedings (OSTI)

This data package presents sampling data and analytical results from the March 28, 1999, vapor sampling of Hanford Site single-shell tank 241-C-106 during active sluicing. Samples were obtained from the 296-C-006 ventilation system stack and ambient air at several locations. Characterization Project Operations (CPO) was responsible for the collection of all SUMMATM canister samples. The Special Analytical Support (SAS) vapor team was responsible for the collection of all triple sorbent trap (TST), sorbent tube train (STT), polyurethane foam (PUF), and particulate filter samples collected at the 296-C-006 stack. The SAS vapor team used the non-electrical vapor sampling (NEVS) system to collect samples of the air, gases, and vapors from the 296-C-006 stack. The SAS vapor team collected and analyzed these samples for Lockheed Martin Hanford Corporation (LMHC) and Tank Waste Remediation System (TWRS) in accordance with the sampling and analytical requirements specified in the Waste Retrieval Sluicing System Vapor Sampling and Analysis Plan (SAP) for Evaluation of Organic Emissions, Process Test Phase III, HNF-4212, Rev. 0-A, (LMHC, 1999). All samples were stored in a secured Radioactive Materials Area (RMA) until the samples were radiologically released and received by SAS for analysis. The Waste Sampling and Characterization Facility (WSCF) performed the radiological analyses. The samples were received on April 5, 1999.

LOCKREM, L.L.

1999-08-13T23:59:59.000Z

16

FLOW GATING  

DOE Patents (OSTI)

BS>This invention is a fast gating system for eiectronic flipflop circuits. Diodes connect the output of one circuit to the input of another, and the voltage supply for the receiving flip-flop has two alternate levels. When the supply is at its upper level, no current can flow through the diodes, but when the supply is at its lower level, current can flow to set the receiving flip- flop to the same state as that of the circuit to which it is connected. (AEC)

Poppelbaum, W.J.

1962-12-01T23:59:59.000Z

17

 

NLE Websites -- All DOE Office Websites (Extended Search)

purpose of this activity is to perform gate checks and inspect the operating mechanisms of the gates at Steel Creek Dam (L-Lake). This will be purpose of this activity is to perform gate checks and inspect the operating mechanisms of the gates at Steel Creek Dam (L-Lake). This will be accomplished by opening the sluice gate and increasing the flow from the normal 4.5 CFS incrementally to a fully open flow of 1400 CFS. Flow will be increased by opening the sluice gate in stages of 50% per hour until the gate is fully open. The gate will remain fully open for 5 minutes, whereupon the gate will be closed to its normal position and flow of 4.5 CFS. After fully open flow for 5 minutes, the gate will be returned to its normal position, reestablishing the 4.5 CFS flow. During the periods of increased flow, water samples will be collected to monitor sediment transport. Any ecological impacts to the receiving stream is expected to be minimal and temporary.

18

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The purpose of this activity is to perform gate checks and inspect the operating mechanisms of the gates at Steel Creek Dam (L-Lake). This will be The purpose of this activity is to perform gate checks and inspect the operating mechanisms of the gates at Steel Creek Dam (L-Lake). This will be accomplished by opening the sluice gate and increasing the flow from the normal 4.5 CFS incrementally to a fully open flow of 1400 CFS. Flow will be increased by opening the sluice gate in stages of 50% per hour until the gate is fully open. The gate will remain fully open for 5 minutes, whereupon the gate will be closed to its normal position and flow of 4.5 CFS. After fully open flow for 5 minutes, the gate will be returned to its normal position, reestablishing the 4.5 CFS flow. During the periods of increased flow, water samples will be collected to monitor sediment transport. Any ecological

19

East Gate  

NLE Websites -- All DOE Office Websites (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

20

The J-K Gate  

Science Conference Proceedings (OSTI)

For many years two-input NAND, AND, NOR, OR and EX-OR gates have been commercially available as cheap quad TTL integrated circuits (IC's). Ideas on quad programmable two-input gates (three inputs per gate) have been published in the literature but have ... Keywords: Digital circuit design, EX-OR gate, inverter, J-K gate, latch, logic circuit, NAND gate, NIMP gate, OR gate, programmable gate circuit, standard gate, zero/one-true/complement element.

R. M. M. Oberman

1976-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Flammable Gas Release Estimates for Modified Sluicing Retrieval of Waste from Selected Hanford Single-Shell Tanks  

DOE Green Energy (OSTI)

The high-level radioactive wastes in many single-shell tanks (SSTs) at the Hanford Site are to be retrieved by a modified sluicing method that uses water jets to dissolve the water-soluble waste and mobilize the water-insoluble waste. Retrieval operations will liberate any waste gases trapped in the wetted solid waste matrix, and these gases will be released into the tank headspaces. Because the trapped gases include the flammable species hydrogen, methane, and ammonia, a concern exists that a flammable mixture could be formed in the tank headspaces. This report combines conservative retained gas inventory estimates and tank data with anticipated waste retrieval rates to estimate the potential headspace flammability of selected SSTs during modified sluicing waste retrieval operations. Considered here are nine of the 12 tanks from the 241-S tank farm (241-S-107, 241-S-111, and 241-S 112 are not considered) and Tank 241-U-107. This report is intended to support the specification of process controls that ensure flammable conditions do not develop in the tank headspaces. Consequently, the physical scenarios considered, the models developed to estimate retained gas releases and the tank headspace compositions under these scenarios, and the model input data are intended to conservatively assess the potential to reach headspace flammability. The analyses are intended to address worst-case conditions and establish reasonable upper bounds on the achievable flammability of the tank headspaces. Flammable retained gas inventories, for example, are based on the 95th percentile developed by Barker and Hedengren (2003), giving 95% confidence that actual inventories are smaller than those used in the calculations. Gas releases and headspace flammability were evaluated for three general scenarios: a very aggressive dissolution and erosion of saltcake waste by water jets impinging on the waste surface, the drainage of interstitial liquids from saltcake during a shutdown of the retrieval process, and the dissolution of saltcake by unsaturated liquids during a shutdown of the retrieval process. The simple model of waste retrieval using the modified sluicing approach indicated that the flammable gas headspace concentrations can rapidly approach the action level of 25% of the lower flammability limit (LFL) when the tank is passively ventilated. While it is not necessary to use the portable exhauster to maintain the headspace hydrogen concentration below this action level, retrieval rates would probably be limited by the slow removal of flammable gases by passive ventilation. It was determined that using a portable exhauster anywhere in the assumed operating range of 270 to 475 cfm would prevent the headspaces from reaching the 25% of LFL action level even if the water jets are very effective at eroding the saltcake. Specific guidelines are developed to ensure that, in the event of a catastrophic loss of the retrieval pump and portable exhauster, headspace flammability will not reach the LFL. This report is Revision 1 of PNNL-14271. This revision expands the analysis of interstitial liquid drainage-induced gas releases to address a general retrieval scenario (the previous version of this report assumed a center-out retrieval approach and conditions). Tank waste conditions (waste volumes, interstitial liquid levels, temperatures, retained gas void fractions, etc.) have also been updated from the previous version.

Huckaby, James L.; Wells, Beric E.

2004-03-05T23:59:59.000Z

22

Flammable Gas Release Estimates for Modified Sluicing Retrieval of Waste from Selected Hanford Single-Shell Tanks  

DOE Green Energy (OSTI)

The high-level radioactive wastes in many single-shell tanks (SSTs) at the Hanford Site are to be retrieved by a modified sluicing method. Retrieval operations will hydraulically erode and dissolve the saltcake waste, and the resulting brine will then be pumped to a double-shell tank (DST). Waste gases residing in the solid waste matrix will be released into the tank headspace when the matrix is eroded or dissolved. These retained waste gases include the flammable species hydrogen, methane, and ammonia, and there is a concern that these flammable gases could produce a flammable mixture in the tank headspaces during the retrieval operations. This report combines conservative retained gas inventory estimates and tank data with anticipated waste retrieval rates to estimate the potential headspace flammability of selected SSTs during waste retrieval operations. The SSTs considered here are ten of the twelve 241-S farm tanks (tanks 241-S-107 and 241-S-111 are excluded from consideration here) and tank 241-U-107 (U-107).

Huckaby, James L.; Wells, Beric E.

2003-05-13T23:59:59.000Z

23

Gated strip proportional detector  

DOE Patents (OSTI)

A gated strip proportional detector includes a gas tight chamber which encloses a solid ground plane, a wire anode plane, a wire gating plane, and a multiconductor cathode plane. The anode plane amplifies the amount of charge deposited in the chamber by a factor of up to 10/sup 6/. The gating plane allows only charge within a narrow strip to reach the cathode. The cathode plane collects the charge allowed to pass through the gating plane on a set of conductors perpendicular to the open-gated region. By scanning the open-gated region across the chamber and reading out the charge collected on the cathode conductors after a suitable integration time for each location of the gate, a two-dimensional image of the intensity of the ionizing radiation incident on the detector can be made.

Morris, C.L.; Idzorek, G.C.; Atencio, L.G.

1985-02-19T23:59:59.000Z

24

Gated strip proportional detector  

DOE Patents (OSTI)

A gated strip proportional detector includes a gas tight chamber which encloses a solid ground plane, a wire anode plane, a wire gating plane, and a multiconductor cathode plane. The anode plane amplifies the amount of charge deposited in the chamber by a factor of up to 10.sup.6. The gating plane allows only charge within a narrow strip to reach the cathode. The cathode plane collects the charge allowed to pass through the gating plane on a set of conductors perpendicular to the open-gated region. By scanning the open-gated region across the chamber and reading out the charge collected on the cathode conductors after a suitable integration time for each location of the gate, a two-dimensional image of the intensity of the ionizing radiation incident on the detector can be made.

Morris, Christopher L. (Los Alamos, NM); Idzorek, George C. (Los Alamos, NM); Atencio, Leroy G. (Espanola, NM)

1987-01-01T23:59:59.000Z

25

Optical NAND gate  

DOE Patents (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

26

Text Processing with GATE  

Science Conference Proceedings (OSTI)

GATE is a free open-source infrastructure for developing and deploying software components that process human language. It is more than 15 years old and is in active use for all types of computational tasks involving language (frequently called natural ...

Hamish Cunningham; Diana Maynard; Kalina Bontcheva

2011-04-01T23:59:59.000Z

27

Compact gate valve  

DOE Patents (OSTI)

This invention relates to a double-disc gate valve which is compact, comparatively simple to construct, and capable of maintaining high closing pressures on the valve discs with low frictional forces. The valve casing includes axially aligned ports. Mounted in the casing is a sealed chamber which is pivotable transversely of the axis of the ports. The chamber contains the levers for moving the valve discs axially, and an actuator for the levers. When an external drive means pivots the chamber to a position where the discs are between the ports and axially aligned therewith, the actuator for the levers is energized to move the discs into sealing engagement with the ports.

Bobo, Gerald E. (Knoxville, TN)

1977-01-01T23:59:59.000Z

28

Penn State DOE GATE Program  

DOE Green Energy (OSTI)

The Graduate Automotive Technology Education (GATE) Program at The Pennsylvania State University (Penn State) was established in October 1998 pursuant to an award from the U.S. Department of Energy (U.S. DOE). The focus area of the Penn State GATE Program is advanced energy storage systems for electric and hybrid vehicles.

Anstrom, Joel

2012-08-31T23:59:59.000Z

29

from Microsoft's Bill Gates. Summer  

NLE Websites -- All DOE Office Websites (Extended Search)

Power surge (page 2) Developing fuel for next- generation nuclear reactors, with backing from Microsoft's Bill Gates. Summer fun (pages 4-5) All aboard a bus or train and tour Y-12...

30

Gate Solar | Open Energy Information  

Open Energy Info (EERE)

Sector Solar Product JV set up for the promotion, exploitation and sale of photovoltaic solar power plants. References Gate Solar1 LinkedIn Connections CrunchBase Profile No...

31

Randomized Benchmarking of Quantum Gates  

E-Print Network (OSTI)

A key requirement for scalable quantum computing is that elementary quantum gates can be implemented with sufficiently low error. One method for determining the error behavior of a gate implementation is to perform process tomography. However, standard process tomography is limited by errors in state preparation, measurement and one-qubit gates. It suffers from inefficient scaling with number of qubits and does not detect adverse error-compounding when gates are composed in long sequences. An additional problem is due to the fact that desirable error probabilities for scalable quantum computing are of the order of 0.0001 or lower. Experimentally proving such low errors is challenging. We describe a randomized benchmarking method that yields estimates of the computationally relevant errors without relying on accurate state preparation and measurement. Since it involves long sequences of randomly chosen gates, it also verifies that error behavior is stable when used in long computations. We implemented randomized benchmarking on trapped atomic ion qubits, establishing a one-qubit error probability per randomized pi/2 pulse of 0.00482(17) in a particular experiment. We expect this error probability to be readily improved with straightforward technical modifications.

E. Knill; D. Leibfried; R. Reichle; J. Britton; R. B. Blakestad; J. D. Jost; C. Langer; R. Ozeri; S. Seidelin; D. J. Wineland

2007-07-06T23:59:59.000Z

32

Dynamic gating window for compensation of baseline shift in respiratory-gated radiation therapy  

Science Conference Proceedings (OSTI)

Purpose: To analyze and evaluate the necessity and use of dynamic gating techniques for compensation of baseline shift during respiratory-gated radiation therapy of lung tumors. Methods: Motion tracking data from 30 lung tumors over 592 treatment fractions were analyzed for baseline shift. The finite state model (FSM) was used to identify the end-of-exhale (EOE) breathing phase throughout each treatment fraction. Using duty cycle as an evaluation metric, several methods of end-of-exhale dynamic gating were compared: An a posteriori ideal gating window, a predictive trend-line-based gating window, and a predictive weighted point-based gating window. These methods were evaluated for each of several gating window types: Superior/inferior (SI) gating, anterior/posterior beam, lateral beam, and 3D gating. Results: In the absence of dynamic gating techniques, SI gating gave a 39.6% duty cycle. The ideal SI gating window yielded a 41.5% duty cycle. The weight-based method of dynamic SI gating yielded a duty cycle of 36.2%. The trend-line-based method yielded a duty cycle of 34.0%. Conclusions: Dynamic gating was not broadly beneficial due to a breakdown of the FSM's ability to identify the EOE phase. When the EOE phase was well defined, dynamic gating showed an improvement over static-window gating.

Pepin, Eric W.; Wu Huanmei; Shirato, Hiroki [School of Health Sciences, Purdue University, West Lafayette, Indiana 47907 (United States); Purdue School of Engineering Technology, IUPUI, Indianapolis, Indiana 46202 (United States); Hokkaido University School of Medicine, Sapporo, 060-8638 (Japan)

2011-04-15T23:59:59.000Z

33

Gate fidelity of arbitrary single-qubit gates constrained by conservation laws  

E-Print Network (OSTI)

Recent investigations show that conservation laws limit the accuracy of gate operations in quantum computing. The inevitable error under the angular momentum conservation law has been evaluated so far for the CNOT, Hadamard, and NOT gates for spin 1/2 qubits, while the SWAP gate has no constraint. Here, we extend the above results to general single-qubit gates. We obtain an upper bound of the gate fidelity of arbitrary single-qubit gates implemented under arbitrary conservation laws, determined by the geometry of the conservation law and the gate operation on the Bloch sphere as well as the size of the ancilla.

Tokishiro Karasawa; Julio Gea-Banacloche; Masanao Ozawa

2008-09-18T23:59:59.000Z

34

Graduate Automotive Technology Education (GATE) Initiative Awards |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

35

Graduate Automotive Technology Education (GATE) Initiative Awards |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

36

Timing driven power gating in high-level synthesis  

Science Conference Proceedings (OSTI)

The power gating technique is useful in reducing standby leakage current, but it increases the gate delay. For a functional unit, its maximum allowable delay (for a target clock period) limits the smallest standby leakage current its power gating can ...

Shih-Hsu Huang; Chun-Hua Cheng

2009-01-01T23:59:59.000Z

37

Robust gate sizing by geometric programming  

Science Conference Proceedings (OSTI)

We present an efficient optimization scheme for gate sizing in the presence of process variations. Using a posynomial delay model, the delay constraints are modified to incorporate uncertainty in the transistor widths and effective channel lengths due ... Keywords: gate sizing, geometric program, optimization, posynomial, uncertainty ellipsoid

Jaskirat Singh; Vidyasagar Nookala; Zhi-Quan Luo; Sachin Sapatnekar

2005-06-01T23:59:59.000Z

38

Retaining latch for a water pit gate  

DOE Patents (OSTI)

The present invention relates to retaining devices which are used to latch two elements or parts together and, more particularly, to gate latches for use in locking a gate to a wall bracket in a water pit utilized to store or handle hazardous materials. A retaining latch is provided comprising a latch plate which is rotatably mounted to each end of the top of the gate and a recessed opening, formed in the gate frame, for engaging an edge of the latch plate. The latch plate is circular in profile with one side cut away or flat, such that the latch plate is D-shaped. The remaining circular edge of the latch plate comprises steps of successively reduced thickness. The stepped edge of the latch plate fits inside a recessed opening formed in the gate frame. As the latch plate is rotated, alternate steps of the latch plate are engaged by the recessed opening. When the latch plate is rotated such that the flat portion of the latch plate faces the recessed opening in the gate frame, there is no connection between the opening and the latch plate and the gate is unlatched from the gate frame.

Beale, A.R.

1996-12-31T23:59:59.000Z

39

Airport Gate Scheduling with Time Windows  

Science Conference Proceedings (OSTI)

In contrast to the existing airport gate assignment studies where flight have fixed schedules, we consider the more realistic situation where flight arrival and departure times can change. Although we minimize walking distances (or travel time) in our ... Keywords: aircraft gate scheduling, memetic algorithm, tabu search

A. Lim; B. Rodrigues; Y. Zhu

2005-09-01T23:59:59.000Z

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 "l-lake sluice gate" 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

NMR quantum gate factorization through canonical cosets  

E-Print Network (OSTI)

The block canonical coset decomposition is developed as a universal algorithmic tool to synthesize n-qubit quantum gates out of experimentally realizable NMR elements. The two-, three-, and four-qubit quantum Fourier transformations are worked out as examples. The proposed decomposition bridges the state of the art numerical analysis with NMR quantum gate synthesis.

Renan Cabrera; Denys I. Bondar; Herschel A. Rabitz

2012-10-29T23:59:59.000Z

42

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

43

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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...

44

SPEED CONTROL SYSTEM FOR AN ACCESS GATE - Energy Innovation Portal  

An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first ...

45

Graduate Automotive Technology Education (GATE) Center  

DOE Green Energy (OSTI)

The Graduate Automotive Technology Education (GATE) Center at the University of Tennessee, Knoxville has completed its sixth year of operation. During this period the Center has involved thirteen GATE Fellows and ten GATE Research Assistants in preparing them to contribute to advanced automotive technologies in the center's focus area: hybrid drive trains and control systems. Eighteen GATE students have graduated, and three have completed their course work requirements. Nine faculty members from three departments in the College of Engineering have been involved in the GATE Center. In addition to the impact that the Center has had on the students and faculty involved, the presence of the center has led to the acquisition of resources that probably would not have been obtained if the GATE Center had not existed. Significant industry interaction such as internships, equipment donations, and support for GATE students has been realized. The value of the total resources brought to the university (including related research contracts) exceeds $4,000,000. Problem areas are discussed in the hope that future activities may benefit from the operation of the current program.

Jeffrey Hodgson; David Irick

2005-09-30T23:59:59.000Z

46

Quantum gates and their coexisting geometric phases  

SciTech Connect

Geometric phases arise naturally in a variety of quantum systems with observable consequences. They also arise in quantum computations when dressed states are used in gating operations. Here we show how they arise in these gating operations and how one may take advantage of the dressed states producing them. Specifically, we show that for a given, but arbitrary Hamiltonian, and at an arbitrary time {tau}, there always exists a set of dressed states such that a given gate operation can be performed by the Hamiltonian up to a phase {phi}. The phase is a sum of a dynamical phase and a geometric phase. We illustrate the dressed phase for several systems.

Wu Lianao [Ikerbasque, Basque Foundation for Science, E-48011 Bilbao (Spain); Department of Theoretical Physics and History of Science, Basque Country University (EHU/UPV), P.O. Box 644, E-48080 Bilbao (Spain); Bishop, C. Allen [Physics Department, Southern Illinois University, Carbondale, Illinois 62901-4401 (United States); Byrd, Mark S. [Physics Department, Southern Illinois University, Carbondale, Illinois 62901-4401 (United States); Computer Science Department, Southern Illinois University, Carbondale, Illinois 62901 (United States)

2011-08-15T23:59:59.000Z

47

David A Gates | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (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

48

Observations and Mechanisms of GATE Waterspouts  

Science Conference Proceedings (OSTI)

The GATE data base for days 261 and 186 is used for a combined observational and numerical investigation of interacting cumulus processes that may be important in the generation of waterspouts. The results suggest that the existence of cumulus-...

Joanne Simpson; Bruce R. Morton; Michael C. McCumber; Richard S. Penc

1986-04-01T23:59:59.000Z

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

NBTI-aware power gating design  

Science Conference Proceedings (OSTI)

A header-based power gating structure inserts PMOS as sleep transistors between the power rail and the circuit. Since PMOS sleep transistors in the functional mode are turned-on continuously, Negative Bias Temperature Instability (NBTI) influences the ...

Ming-Chao Lee; Yu-Guang Chen; Ding-Kei Huang; Shih-Chieh Chang

2011-01-01T23:59:59.000Z

51

The GATE Boundary Layer Instrumentation System (BLIS)  

Science Conference Proceedings (OSTI)

A tethered sonde, the Boundary Layer Instrument System (BLIS), was designed for use from shipboard platforms in the GARP Atlantic Tropical Experiment (GATE). This system was able to monitor the thermal and kinematic properties of the boundary ...

Donald P. Wylie; Chester F. Ropelewski

1980-09-01T23:59:59.000Z

52

GaTe semiconductor for radiation detection  

SciTech Connect

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

Range gated strip proximity sensor  

DOE Patents (OSTI)

A range gated strip proximity sensor uses one set of sensor electronics and a distributed antenna or strip which extends along the perimeter to be sensed. A micro-power RF transmitter is coupled to the first end of the strip and transmits a sequence of RF pulses on the strip to produce a sensor field along the strip. A receiver is coupled to the second end of the strip, and generates a field reference signal in response to the sequence of pulse on the line combined with received electromagnetic energy from reflections in the field. The sensor signals comprise pulses of radio frequency signals having a duration of less than 10 nanoseconds, and a pulse repetition rate on the order of 1 to 10 MegaHertz or less. The duration of the radio frequency pulses is adjusted to control the range of the sensor. An RF detector feeds a filter capacitor in response to received pulses on the strip line to produce a field reference signal representing the average amplitude of the received pulses. When a received pulse is mixed with a received echo, the mixing causes a fluctuation in the amplitude of the field reference signal, providing a range-limited Doppler type signature of a field disturbance. 6 figs.

McEwan, T.E.

1996-12-03T23:59:59.000Z

54

Range gated strip proximity sensor  

DOE Patents (OSTI)

A range gated strip proximity sensor uses one set of sensor electronics and a distributed antenna or strip which extends along the perimeter to be sensed. A micro-power RF transmitter is coupled to the first end of the strip and transmits a sequence of RF pulses on the strip to produce a sensor field along the strip. A receiver is coupled to the second end of the strip, and generates a field reference signal in response to the sequence of pulse on the line combined with received electromagnetic energy from reflections in the field. The sensor signals comprise pulses of radio frequency signals having a duration of less than 10 nanoseconds, and a pulse repetition rate on the order of 1 to 10 MegaHertz or less. The duration of the radio frequency pulses is adjusted to control the range of the sensor. An RF detector feeds a filter capacitor in response to received pulses on the strip line to produce a field reference signal representing the average amplitude of the received pulses. When a received pulse is mixed with a received echo, the mixing causes a fluctuation in the amplitude of the field reference signal, providing a range-limited Doppler type signature of a field disturbance.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

55

Sliding-gate valve for use with abrasive materials  

DOE Patents (OSTI)

The invention is a flow and pressure-sealing valve for use with abrasive solids. The valve embodies special features which provide for long, reliable operating lifetimes in solids-handling service. The valve includes upper and lower transversely slidable gates, contained in separate chambers. The upper gate provides a solids-flow control function, whereas the lower gate provides a pressure-sealing function. The lower gate is supported by means for (a) lifting that gate into sealing engagement with its seat when the gate is in its open and closed positions and (b) lowering the gate out of contact with its seat to permit abrasion-free transit of the gate between its open and closed positions. When closed, the upper gate isolates the lower gate from the solids. Because of this shielding action, the sealing surface of the lower gate is not exposed to solids during transit or when it is being lifted or lowered. The chamber containing the lower gate normally is pressurized slightly, and a sweep gas is directed inwardly across the lower-gate sealing surface during the vertical translation of the gate.

Ayers, Jr., William J. (Morgantown, WV); Carter, Charles R. (Fairmont, WV); Griffith, Richard A. (Morgantown, WV); Loomis, Richard B. (Bruceton Mills, WV); Notestein, John E. (Morgantown, WV)

1985-01-01T23:59:59.000Z

56

Characterizing Quantum Gates via Randomized Benchmarking  

E-Print Network (OSTI)

We describe and expand upon the scalable randomized benchmarking protocol proposed in Phys. Rev. Lett. 106, 180504 (2011) which provides a method for benchmarking quantum gates and estimating the gate-dependence of the noise. The protocol allows the noise to have weak time and gate-dependence, and we provide a sufficient condition for the applicability of the protocol in terms of the average variation of the noise. We discuss how state preparation and measurement errors are taken into account and provide a complete proof of the scalability of the protocol. We establish a connection in special cases between the error rate provided by this protocol and the error strength measured using the diamond norm distance.

Easwar Magesan; Jay M. Gambetta; Joseph Emerson

2011-09-30T23:59:59.000Z

57

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.

58

Evolving GATE to meet new challenges in language engineering  

Science Conference Proceedings (OSTI)

In this paper we present recent work on GATE, a widely-used framework and graphical development environment for creating and deploying Language Engineering components and resources in a robust fashion. The GATE architecture has facilitated the development ...

Kalina Bontcheva; Valentin Tablan; Diana Maynard; Hamish Cunningham

2004-09-01T23:59:59.000Z

59

Using GATE as an environment for teaching NLP  

Science Conference Proceedings (OSTI)

In this paper we argue that the GATE architecture and visual development environment can be used as an effective tool for teaching language engineering and computational linguistics. Since GATE comes with a customisable and extendable set of components, ...

Kalina Bontcheva; Hamish Cunningham; Valentin Tablan; Diana Maynard; Oana Hamza

2002-07-01T23:59:59.000Z

60

Simulation of multiple-gate quantum stub transistor  

Science Conference Proceedings (OSTI)

The quantum stub transistor has the potential for ultrafast, ultra low power signal processing in high density integrated circuits. However, the single gate stub transistor presents the shortcoming of requiring highly precise gate voltage to close the ... Keywords: multiple gate, simulation, stub transistor

Edval J. P. Santos; Alexandre B. Guerra

2005-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Two methods of realising 10nm T-gate lithography  

Science Conference Proceedings (OSTI)

This paper presents two separate methods for the fabrication of 10nm footprint T-gates using a two-step gate process. We examine the limits of lithographic and pattern transfer processes using the exposure of ZEP520A resist by electron beam lithography, ... Keywords: Electron beam lithography, HEMT, ICP, RIE, Reactive ion etching, T-gate

S. Bentley; X. Li; D. A. J. Moran; I. G. Thayne

2009-04-01T23:59:59.000Z

62

Damascene TiN-Gd2O3-gate stacks: Gentle fabrication and electrical properties  

Science Conference Proceedings (OSTI)

In this work, we present MOS capacitors and field effect transistors with a crystalline gadolinium oxide (Gd"2O"3) gate dielectric and metal gate electrode (titanium nitride) fabricated in a gentle damascene gate last process. Details of the gate last ... Keywords: Crystalline high-k dielectrics, Damascene metal gate technology, Gadolinium oxide (Gd2O3), Gentle process integration, MOSFET, Metal gate electrode

Ralf Endres; Tillmann Krauss; Frank Wessely; Udo Schwalke

2011-12-01T23:59:59.000Z

63

Waves at 200 mb during GATE  

Science Conference Proceedings (OSTI)

A 200 mb data set obtained during the GATE experiment of the 1974 summer for the period 15 June-23 September and covering the global tropics 25S to 45N has been analyzed to determine the presence of certain wave modes in the tropical ...

Colin A. Depradine

1981-05-01T23:59:59.000Z

64

Efficient tiling patterns for reconfigurable gate arrays  

Science Conference Proceedings (OSTI)

In this paper we present a few potentially efficient tiling patterns for gate-array realizations. We start with a brief recapitulation of tiling patterns, and fundamental limits of placement/routing in a two-dimensional plane. We state the first principles ... Keywords: FPGA, hexagonal, octagonal, tiling

Sumanta Chaudhuri; Sylvain Guilley; Philippe Hoogvorst; Jean-Luc Danger

2008-04-01T23:59:59.000Z

65

Deep Convection on Day 261 of GATE  

Science Conference Proceedings (OSTI)

Aircraft, radar, satellite and ship data, gathered on 18 September 1974 during GATE, have been brought to bear an clouds of the middle and upper troposphere associated with a cloud cluster occurring near the ridge axis of a 700 mb wave.

C. Warner; J. Simpson; G. Van Helvoirt; D. W. Martin; D. Suchman; G. L. Austin

1980-02-01T23:59:59.000Z

66

Gaussian mixture CPHD filter with gating technique  

Science Conference Proceedings (OSTI)

Cardinalized probability hypothesis density (CPHD) filter provides more accurate estimates of target number than the probability hypothesis density (PHD) filter, and hence, also of the states of targets. This additional capability comes at the price ... Keywords: Finite sets statistics, Gating, Gaussian mixture, Probability hypothesis density, Target tracking

Hongjian Zhang; Zhongliang Jing; Shiqiang Hu

2009-08-01T23:59:59.000Z

67

Estimation of gate-to-channel tunneling current in ultra-thin oxide sub-50nm double gate devices  

Science Conference Proceedings (OSTI)

Double gate (DG) FETs have emerged as the most promising technology for sub-50nm transistor design. However, analysis and control of the gate tunneling leakage in DGFET is necessary to fully exploit their advantages. In this paper we have modeled (numerically ... Keywords: Direct tunneling, Double gate, Leakage, Quantum confinement

Saibal Mukhopadhyay; Keunwoo Kim; Jae-Joon Kim; Shih-Hsien Lo; Rajiv V. Joshi; Ching-Te Chuang; Kaushik Roy

2007-08-01T23:59:59.000Z

68

Application of group electronegativity concepts to the effective work functions of metal gate electrodes on high- ? gate oxides  

Science Conference Proceedings (OSTI)

The empirical relationship between electronegativity and effective work function is applied to a diverse set of multi-element electrode materials on hafnium dioxide (HfO"2) gate dielectrics. To accommodate the multi-element nature of metal gate electrodes ... Keywords: Effective work function, Electronegativity, Hafnium dioxide, Metal gate electrode

J. K. Schaeffer; D. C. Gilmer; C. Capasso; S. Kalpat; B. Taylor; M. V. Raymond; D. Triyoso; R. Hegde; S. B. Samavedam; B. E. White, Jr

2007-09-01T23:59:59.000Z

69

Quantum process tomography of a controlled-NOT gate  

E-Print Network (OSTI)

We demonstrate complete characterization of a two-qubit entangling process - a linear optics controlled-NOT gate operating with coincident detection - by quantum process tomography. We use maximum-likelihood estimation to convert the experimental data into a physical process matrix. The process matrix allows accurate prediction of the operation of the gate for arbitrary input states, and calculation of gate performance measures such as the average gate fidelity, average purity and entangling capability of our gate, which are 0.90, 0.83 and 0.73, respectively.

J. L. O'Brien; G. J. Pryde; A. Gilchrist; D. F. V. James; N. K. Langford; T. C. Ralph; A. G. White

2004-02-23T23:59:59.000Z

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

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":""}]}

72

Fractional diffusion modeling of ion channel gating  

E-Print Network (OSTI)

An anomalous diffusion model for ion channel gating is put forward. This modeling scheme is able to describe the non-exponential, power-law like gating behavior of residence time intervals in several types of ion channels. Our scheme presents a generalization of the discrete diffusion model by Millhauser, Salpeter and Oswald [Proc. Natl. Acad. Sci. USA 85, 1503 (1988)] to the case of a continuous, anomalously slow conformational diffusion. The corresponding generalization is derived from a continuous time random walk composed of nearest neighbor jumps which in the scaling limit results in a fractional diffusion equation. The studied model contains three parameters only: the mean residence time, a characteristic time of conformational diffusion, and the index of subdiffusion. A tractable analytical expression for the characteristic function of the residence time distribution (RTD) is obtained. In the limiting case of normal diffusion a prior result of Goychuk and Hanggi [Proc. Natl. Acad. Sci. USA 99, 3552 (20...

Goychuk, I; Goychuk, Igor; Hanggi, Peter

2004-01-01T23:59:59.000Z

73

Patient training in respiratory-gated radiotherapy  

Science Conference Proceedings (OSTI)

Respiratory gating is used to counter the effects of organ motion during radiotherapy for chest tumors. The effects of variations in patient breathing patterns during a single treatment and from day to day are unknown. We evaluated the feasibility of using patient training tools and their effect on the breathing cycle regularity and reproducibility during respiratory-gated radiotherapy. To monitor respiratory patterns, we used a component of a commercially available respiratory-gated radiotherapy system (Real Time Position Management (RPM) System, Varian Oncology Systems, Palo Alto, CA 94304). This passive marker video tracking system consists of reflective markers placed on the patient's chest or abdomen, which are detected by a wall-mounted video camera. Software installed on a PC interfaced to this camera detects the marker motion digitally and records it. The marker position as a function of time serves as the motion signal that may be used to trigger imaging or treatment. The training tools used were audio prompting and visual feedback, with free breathing as a control. The audio prompting method used instructions to 'breathe in' or 'breathe out' at periodic intervals deduced from patients' own breathing patterns. In the visual feedback method, patients were shown a real-time trace of their abdominal wall motion due to breathing. Using this, they were asked to maintain a constant amplitude of motion. Motion traces of the abdominal wall were recorded for each patient for various maneuvers. Free breathing showed a variable amplitude and frequency. Audio prompting resulted in a reproducible frequency; however, the variability and the magnitude of amplitude increased. Visual feedback gave a better control over the amplitude but showed minor variations in frequency. We concluded that training improves the reproducibility of amplitude and frequency of patient breathing cycles. This may increase the accuracy of respiratory-gated radiation therapy.

Kini, Vijay R.; Vedam, Subrahmanya S.; Keall, Paul J.; Patil, Sumukh; Chen, Clayton; Mohan, Radhe

2003-03-31T23:59:59.000Z

74

All-optical reversible logic gate via adiabatic population transfer  

E-Print Network (OSTI)

The Toffoli gate is an essential logic element, which permits implementation of a reversible processor. It is of relevance both for classical as well as quantum logics. We propose and theoretically study all-optical implementations of three-bit and four-bit Toffoli gates by application of adiabatic population transfer techniques. For a three-bit Toffoli gate we use variants of stimulated Raman adiabatic passage (STIRAP) processes in a $\\Lambda$-type level scheme, driven by two laser pulses at sufficiently large detunings. For the implementation of a four-bit Toffoli gate, we apply reversible adiabatic population transfer in five-level quantum systems, interacting with three laser pulses. We demonstrate correct all-optical implementation of the truth table of three-bit and four-bit Toffoli gates. Moreover, we derive conditions for adiabatic evolution of the population dynamics and robust operation of the gates.

G. Grigoryan; V. Chaltykyan; E. Gazazyan; O. Tikhova; T. Halfmann

2013-06-10T23:59:59.000Z

75

High fidelity gates in quantum dot spin qubits  

E-Print Network (OSTI)

Several logical qubits and quantum gates have been proposed for semiconductor quantum dots controlled by voltages applied to top gates. Differences between the schemes can make it difficult to compare them meaningfully. Here we develop a theoretical framework to evaluate disparate qubit-gating schemes on an equal footing. We apply the procedure to two types of double-dot qubits: the singlet-triplet (ST) and the semiconducting quantum dot hybrid qubit. We investigate three quantum gates that flip the qubit state: a DC pulsed gate, an AC gate based on logical qubit resonance (LQR), and a gate-like process known as stimulated Raman adiabatic passage (STIRAP). These gates are all mediated by an exchange interaction that depends on a small number of experimental control parameters, including the interdot tunnel coupling $g$ and the detuning $\\epsilon$, which sets the energy difference between the dots. Our procedure has two steps. First, we optimize the gate fidelity ($f$) for fixed $g$ as a function of the other control parameters; this yields an $f^\\text{opt}(g)$ that is universal for different types of gates. Next, we identify physical constraints on the control parameters; this yields an upper bound $f^\\text{max}$ that is specific to the qubit-gate combination. We show that similar gate fidelities ($\\sim 99.5$%) should be attainable for ST qubits in isotopically purified Si, and for hybrid qubits in natural Si. Considerably lower fidelities are obtained for GaAs devices, due to the fluctuating magnetic fields $\\Delta B$ produced by nuclear spins.

Teck Seng Koh; S. N. Coppersmith; Mark Friesen

2013-07-31T23:59:59.000Z

76

CLUSTERING OF CYCLIC-NUCLEOTIDE-GATED CHANNELS IN OLFACTORY CILIA.  

E-Print Network (OSTI)

??Cyclic nucleotide gated (CNG) channels play an important role in mediating sensory signal transduction in olfactory receptor neurons, which takes place primarily in olfactory cilia. (more)

FLANNERY, RICHARD JOHN

2006-01-01T23:59:59.000Z

77

The Difficulty of Gate Control in Molecular Transistors  

E-Print Network (OSTI)

The electrostatic gating effects on molecular transistors are investigated using the density functional theory (DFT) combined with the nonequilibrium Green's function (NEGF) method. When molecular energy levels are away from the Fermi energy they can be linearly shifted by the gate voltage, which is consistent with recent experimental observations [Nature 462, 1039 (2009)]. However, when they move near to the Fermi energy (turn-on process), the shifts become extremely small and almost independent of the gate voltage. The fact that the conductance may be beyond the gate control in the "ON" state will challenge the implementation of molecular transistors.

D. Hou; J. H. Wei

2011-09-27T23:59:59.000Z

78

Gates/filters in Flow Cytometry Data Visualization  

E-Print Network (OSTI)

The flowViz package provides tools for visualization of flow cytometry data. This document describes the support for visualizing gates (a.k.a. filters). 1

unknown authors

2010-01-01T23:59:59.000Z

79

Gates/filters in Flow Cytometry Data Visualization  

E-Print Network (OSTI)

The flowViz package provides tools for visualization of flow cytometry data. This document describes the support for visualizing gates (a.k.a. filters). 1

unknown authors

2012-01-01T23:59:59.000Z

80

Composite Toffoli gate with two-round error detection  

E-Print Network (OSTI)

We introduce a fault-tolerant construction to implement a composite quantum operation of four overlapping Toffoli gates. The same construction can produce two independent Toffoli gates. This result lowers resource overheads in designs for quantum computers by more than an order of magnitude. The procedure uses Clifford operations and 64 copies of the non-Clifford gate $T = \\exp[i \\pi (I - \\sigma^z) /8]$. Quantum codes detect errors in the circuit. When the dominant source of error is $T$-gate failure with probability $p$, then the composite Toffoli circuit has postselected failure rate of $3072p^4$ to lowest order.

Cody Jones

2013-03-27T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Speed control system for an access gate  

DOE Patents (OSTI)

An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first variable speed in a forward direction. The access control apparatus may include a transmission that typically has an input element that is operatively connected to the rotator. The input element is generally configured to rotate at an input speed that is proportional to the first variable speed. The transmission typically also has an output element that has an output speed that is higher than the input speed. The input element and the output element may rotate around a common transmission axis. A retardation mechanism may be employed. The retardation mechanism is typically configured to rotate around a retardation mechanism axis. Generally the retardation mechanism is operatively connected to the output element of the transmission and is configured to retard motion of the access gate in the forward direction when the first variable speed is above a control-limit speed. In many embodiments the transmission axis and the retardation mechanism axis are substantially co-axial. Some embodiments include a freewheel/catch mechanism that has an input connection that is operatively connected to the rotator. The input connection may be configured to engage an output connection when the rotator is rotated at the first variable speed in a forward direction and configured for substantially unrestricted rotation when the rotator is rotated in a reverse direction opposite the forward direction. The input element of the transmission is typically operatively connected to the output connection of the freewheel/catch mechanism.

Bzorgi, Fariborz M. (Knoxville, TN)

2012-03-20T23:59:59.000Z

82

Twin logic gates: improved logic reliability by redundancy concerning gate oxide breakdown  

Science Conference Proceedings (OSTI)

Because of the aggressive scaling of integrated circuits and the given limits of atomic scales, circuit designers have to become more and more aware of the arising reliability and yield concerns. So far, only very little research efforts have been put ... Keywords: gate oxide breakdown, integrated circuit design, redundant systems, reliability

Hagen Saemrow; Claas Cornelius; Frank Sill; Andreas Tockhorn; Dirk Timmermann

2009-08-01T23:59:59.000Z

83

Advanced high-? dielectric stacks with polySi and metal gates: recent progress and current challenges  

Science Conference Proceedings (OSTI)

The paper reviews our recent progress and current challenges in implementing advanced gate stacks composed of high-? dielectric materials and metal gates in mainstream Si CMOS technology. In particular, we address stacks of doped polySi gate electrodes ...

E. P. Gusev; V. Narayanan; M. M. Frank

2006-07-01T23:59:59.000Z

84

Power gating design for standard-cell-like structured ASICs  

Science Conference Proceedings (OSTI)

Structured ASIC has been introduced to bridge the power, performance, area and design cost gaps between ASIC and FPGA. As technology scales, leakage power consumption becomes a serious problem. Among the leakage power reduction techniques, power gating ... Keywords: low power, power-gating, structured ASIC, via-configurable

Sin-Yu Chen; Rung-Bin Lin; Hui-Hsiang Tung; Kuen-Wey Lin

2010-03-01T23:59:59.000Z

85

Logic synthesis for low power using clock gating and rewiring  

Science Conference Proceedings (OSTI)

Traditionally, clock gating for power saving is mainly done at Register Transistor Level (RTL), while in a lower logical level some synthesis techniques, e.g. Observability Don't Care (ODC) can also be used to provide more power savings. In this paper, ... Keywords: clock gating, logic synthesis, low power

Tak-Kei Lam; Steve Yang; Wai-Chung Tang; Yu-Liang Wu

2010-05-01T23:59:59.000Z

86

Some issues in advanced CMOS gate stack performance and reliability  

Science Conference Proceedings (OSTI)

This paper summarizes and analyzes some of our previous works on the advanced gate stacks for CMOS transistors focused on the following two topics: 1. Frequency dependence of Dynamic Bias Temperature Instability (DBTI) and the transistor degradation ... Keywords: CMOS, Gate Stack, Reliability

Ming-Fu Li; X. P. Wang; C. Shen; J. J. Yang; J. D. Chen; H. Y. Yu; Chunxiang Zhu; Daming Huang

2011-12-01T23:59:59.000Z

87

Non-deterministic Gates for Photonic Single Rail Quantum Logic  

E-Print Network (OSTI)

We discuss techniques for producing, manipulating and measureing qubits encoded optically as vacuum and single photon states. We show that a universal set of non-deterministic gates can be constructed using linear optics and photon counting. We investigate the efficacy of a test gate given realistic detector efficiencies.

A. P. Lund; T. C. Ralph

2002-05-09T23:59:59.000Z

88

Controlled gates for multi-level quantum computation  

Science Conference Proceedings (OSTI)

Multi-level (ML) quantum logic can potentially reduce the number of inputs/outputs or quantum cells in a quantum circuit which is a limitation in current quantum technology. In this paper we propose theorems about ML-quantum and reversible logic circuits. ... Keywords: Controlled gate, Multi-level logic gates, Quantum computing, Quantum cost, Reversible logic

Majid Mohammadi; Aliakbar Niknafs; Mohammad Eshghi

2011-04-01T23:59:59.000Z

89

Gating internal nodes to reduce power during scan shift  

Science Conference Proceedings (OSTI)

It is a common practice to gate a limited number of scan cells in order to reduce overall switching activity during shift, thereby, reducing the circuit's dynamic power consumption. In this paper, we propose a novel approach to reduce overall shift power ... Keywords: gating internal nodes, low power test, scan shift power reduction

Dheepakkumaran Jayaraman; Rajamani Sethuram; Spyros Tragoudas

2010-05-01T23:59:59.000Z

90

Cardiac perfusion defect detection using gated dynamic spect imaging  

Science Conference Proceedings (OSTI)

In our previous work we proposed a dynamic image reconstruction procedure for gated cardiac imaging, of which the goal is to obtain a single image sequence that shows simultaneously both cardiac motion and tracer distribution change over time. In this ... Keywords: 5D reconstruction, dynamic SPECT, gated SPECT, spatio-temporal processing

Xiaofeng Niu; Yongyi Yang; Miles N. Wernick

2009-11-01T23:59:59.000Z

91

Detectability of perfusion defect in gated dynamic cardiac spect images  

Science Conference Proceedings (OSTI)

Recently we developed an image reconstruction procedure aimed to unify gated imaging and dynamic imaging in nuclear cardiac imaging. It can yield a single image sequence to show simultaneously both cardiac motion and tracer distribution change over the ... Keywords: 5D reconstruction, dynamic SPECT, gated SPECT, spatio-temporal processing

Xiaofeng Niu; Yongyi Yang; Miles N. Wernick

2009-06-01T23:59:59.000Z

92

City Marketing and Gated Communities: A Case Study of Guaynabo, Puerto Rico.  

E-Print Network (OSTI)

??This dissertation focuses on the dynamics of gated communities with attention to the municipality of Guaynabo, Puerto Rico. Despite the growing numbers of gated communities (more)

Suarez-Carrasquillo, Carlos A.

2009-01-01T23:59:59.000Z

93

Inside the Castle Gates: How Foreign Corporations Nagivate Japan's Policymaking Processes  

E-Print Network (OSTI)

II INSIDE THE CASTLE GATES: POLITICAL STRATEGIES OF MNCS INfortified castle, there are a number of strategies you mightthe castle gates (Part I), and these political strategies

Kushida, Kenji Erik

2010-01-01T23:59:59.000Z

94

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

E-Print Network (OSTI)

The primary purpose of the study is to explore the connections between residents' perception of safety and their crime experience, and the existence of gates and fences in multi-family housing communities in urban areas. For cultivating discussions 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-gated communities. It investigates residents' perceptions of safety and their opinions and managers' opinions on gated territory and safety. The major findings from the surveys are: Residents felt safer in gated communities than in non-gated communities. Residents' perceptions of safety in perceived gated communities were similar to those in gated communities. These results reflected the territoriality issue for improving residents' perceived safety in apartment communities. Residents' perceptions of safety in architectural spaces showed that residents' fear of crime in public and semi-public spaces must first be addressed in order to ease residents' fear of crime in an apartment territory. The reality of crime in apartment communities differed from residents' perceptions of safety. Gated community residents reported a higher crime rate than nongated community residents. In addition to gates and fences that define apartment territory, such elements as patrol services, bright lighting, direct emergency buttons, and visual access to the local police were indicated as the important factors for improving residents' perceived safety. Some architectural factors and demographic factors exhibited statistical correlations with residents' perceptions of safety. Those were types of communities, dwelling floor level, educational attainment, family size, and annual income. For predicting residents' perceptions of safety in their apartment territory, multiple regression models were obtained and residents' neighborhood attachment was also considered in the multiple regression models. The apartment community managers emphasized direct maintenance issues and residents' social contact with neighbors for improving residents' perceived safety. In conclusion, design and managerial suggestions for safer communities were proposed. For creating safer multi-family housing communities, territoriality and related architectural conditions and managerial considerations and residents' participations are emphasized. The concept of community programming for safer multi-family housing communities is suggested.

Kim, Suk Kyung

2006-08-01T23:59:59.000Z

95

MaGate Simulator: A Simulation Environment for a Decentralized Grid Scheduler  

Science Conference Proceedings (OSTI)

This paper presents a simulator for of a decentralized modular grid scheduler named MaGate. MaGate's design emphasizes scheduler interoperability by providing intelligent scheduling serving the grid community as a whole. Each MaGate scheduler instance ... Keywords: Grid Scheduling, MaGate Simulator, Simulation, SmartGRID

Ye Huang; Amos Brocco; Michele Courant; Beat Hirsbrunner; Pierre Kuonen

2009-08-01T23:59:59.000Z

96

Characterization of silicon surface preparation processes for advanced gate dielectrics  

Science Conference Proceedings (OSTI)

This paper gives a short overview of issues associated with the surface preparation of silicon surfaces for advanced gate dielectrics and the appearance and nature of the wafer surface after different chemical treatments. The main portion of the paper ...

H. F. Okorn-Schmidt

1999-05-01T23:59:59.000Z

97

The Inference of GATE Convective Rainfall from SMS-1 Imagery  

Science Conference Proceedings (OSTI)

Quantitative precipitation estimates have been made for the GARP (Global Atmospheric Research Program) Atlantic Tropical Experiment (GATE) from geosynchronous, infrared satellite imagery and a computer-automated technique that is described in ...

William L. Woodley; Cecilia G. Griffith; Joseph S. Griffin; Scott C. Stromatt

1980-04-01T23:59:59.000Z

98

A Comparison of Two Satellite Rainfall Estimates for GATE  

Science Conference Proceedings (OSTI)

Rainfall estimates obtained for the GATE experiment by two satellite rainfall estimation techniques are compared for different time and space scales. The Kilonsky-Ramage technique uses polar-orbiting satellites for 1 resolution rainfall ...

Oswaldo Garcia

1981-04-01T23:59:59.000Z

99

Molecular Mechanisms of a Retinal Cyclic Nucleotide-Gated Channel.  

E-Print Network (OSTI)

??Cyclic nucleotide-gated (CNG) channels mediate the transduction of light signals to electrical signals in vertebrate photoreceptors. These channels are non-selective for cations and open upon (more)

Martinez-Francois, Juan R

2009-01-01T23:59:59.000Z

100

TransForum v2n4 - GATE  

NLE Websites -- All DOE Office Websites (Extended Search)

with a "real-world" industrial base made up of 16 partners (such as British Petroleum, Exxon, General Motors, and Honda). The Ohio State University (OSU) GATE program is also...

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Induction-based gate-level verification of multipliers  

Science Conference Proceedings (OSTI)

We propose a method based on unrolling the inductive definition of binary number multiplication to verify gate-level implementations of multipliers. The induction steps successively reduce the size of the multiplier under verification. Through induction, ...

Ying Tsai Chang; Kwang Ting Tim Cheng

2001-11-01T23:59:59.000Z

102

Electroluminescence in ion gel gated organic polymer semiconductor transistors  

E-Print Network (OSTI)

emission in ion gel gated, thin film organic semiconductor tran- sistors and investigates the light emission mechanism behind these devices. We report that ion gel gated organic polymer semiconductor transistors emit light when the drain source volt- age... the organic light emitting devices become mainstream, there are several challenges that need to be resolved and current research focus is to ad- dress those challenges. One particular challenge is relatively high operating volt- ages of light emitting organic...

Bhat, Shrivalli

2011-07-12T23:59:59.000Z

103

Experimental demonstration of a Hadamard gate for coherent state qubits  

SciTech Connect

We discuss and make an experimental test of a probabilistic Hadamard gate for coherent state qubits. The scheme is based on linear optical components, nonclassical resources, and the joint projective action of a photon counter and a homodyne detector. We experimentally characterize the gate for the coherent states of the computational basis by full tomographic reconstruction of the transformed output states. Based on the parameters of the experiment, we simulate the fidelity for all coherent state qubits on the Bloch sphere.

Tipsmark, Anders; Laghaout, Amine; Andersen, Ulrik L. [Department of Physics, Technical University of Denmark, Fysikvej, DK-2800 Kgs. Lyngby (Denmark); Dong, Ruifang [Quantum Frequency Standards Division, National Time Service Center (NTSC), Chinese Academy of Sciences, 710600 Lintong, Shaanxi (China); Department of Physics, Technical University of Denmark, Fysikvej, DK-2800 Kgs. Lyngby (Denmark); Marek, Petr [Department of Optics, Palacky University, 17. listopadu 12, CZ-77146 Olomouc (Czech Republic); Jezek, Miroslav [Department of Optics, Palacky University, 17. listopadu 12, CZ-77146 Olomouc (Czech Republic); Department of Physics, Technical University of Denmark, Fysikvej, DK-2800 Kgs. Lyngby (Denmark)

2011-11-15T23:59:59.000Z

104

Final Technical GATE Report, 1998-2006  

SciTech Connect

In 1998, the U.S. Department of Energy (DOE) funded 10 proposals to establish graduate automotive technology education (GATE) centers of excellence at nine universities, each addressing a specific technological area. The University of California, Davis was chosen for two centers: Fuel Cell Center and Hybrid-Electric Vehicle Design Center (power drivetrains and control strategies). This report is specific to the Fuel Cell Center only, which was housed at the UC Davis Institute of Transportation Studies (ITS-Davis). ITS-Davis created the Fuel Cell Vehicle Center, with the following goals: (1) create an interdisciplinary fuel cell vehicle curriculum that cuts across engineering, the physical sciences and, to a lesser extent, the social sciences; (2) expand and strengthen the then-emerging multidisciplinary fuel cell vehicle research program; (3) strengthen links with industry; (4) create an active public outreach program; and (5) serve as neutral ground for interactions between academia, the auto, energy, and technology industries, government, and public-interest non-governmental organizations. At the time of proposal, the Center had a solid track record in fuel cell research, strong connections with industry, strong campus support, a core group of distinguished and motivated faculty, and an established institutional foundation for fuel cell vehicle research and education.

GATE Fuel Cell Vehicle Center

2006-09-30T23:59:59.000Z

105

Gated integrator with signal baseline subtraction  

DOE Patents (OSTI)

An ultrafast, high precision gated integrator includes an opamp having differential inputs. A signal to be integrated is applied to one of the differential inputs through a first input network, and a signal indicative of the DC offset component of the signal to be integrated is applied to the other of the differential inputs through a second input network. A pair of electronic switches in the first and second input networks define an integrating period when they are closed. The first and second input networks are substantially symmetrically constructed of matched components so that error components introduced by the electronic switches appear symmetrically in both input circuits and, hence, are nullified by the common mode rejection of the integrating opamp. The signal indicative of the DC offset component is provided by a sample and hold circuit actuated as the integrating period begins. The symmetrical configuration of the integrating circuit improves accuracy and speed by balancing out common mode errors, by permitting the use of high speed switching elements and high speed opamps and by permitting the use of a small integrating time constant. The sample and hold circuit substantially eliminates the error caused by the input signal baseline offset during a single integrating window.

Wang, Xucheng (Lisle, IL)

1996-01-01T23:59:59.000Z

106

Gated integrator with signal baseline subtraction  

DOE Patents (OSTI)

An ultrafast, high precision gated integrator includes an opamp having differential inputs. A signal to be integrated is applied to one of the differential inputs through a first input network, and a signal indicative of the DC offset component of the signal to be integrated is applied to the other of the differential inputs through a second input network. A pair of electronic switches in the first and second input networks define an integrating period when they are closed. The first and second input networks are substantially symmetrically constructed of matched components so that error components introduced by the electronic switches appear symmetrically in both input circuits and, hence, are nullified by the common mode rejection of the integrating opamp. The signal indicative of the DC offset component is provided by a sample and hold circuit actuated as the integrating period begins. The symmetrical configuration of the integrating circuit improves accuracy and speed by balancing out common mode errors, by permitting the use of high speed switching elements and high speed opamps and by permitting the use of a small integrating time constant. The sample and hold circuit substantially eliminates the error caused by the input signal baseline offset during a single integrating window. 5 figs.

Wang, X.

1996-12-17T23:59:59.000Z

107

Process damage-free damascene metal gate technology for gentle integration of epitaxially grown high-k  

Science Conference Proceedings (OSTI)

This paper presents the first successful attempt to integrate crystalline high-k gate dielectrics into a virtually damage-free damascene metal gate process. Process details as well as initial electrical characterization results on fully functional gate ... Keywords: CMP, Crystalline high-k gate dielectric, Damascene metal gate, Gadolinium oxide, Rare-earth oxide

Ralf Endres; Yordan Stefanov; Frank Wessely; Florian Zaunert; Udo Schwalke

2008-01-01T23:59:59.000Z

108

Entangling unitary gates on distant qubits with ancilla feedback  

E-Print Network (OSTI)

By using an ancilla qubit as a mediator, two distant qubits can undergo a non-local entangling unitary operation. This is desirable for when attempting to scale up or distribute quantum computation by combining fixed static local sets of qubits with ballistic mediators. Using a model driven by measurements on the ancilla, it is possible to generate a maximally entangling CZ gate while only having access to a less entangling gate between the pair qubits and the ancilla. However this results in a stochastic process of generating control phase rotation gates where the expected time for success does not correlate with the entangling power of the connection gate. We explore how one can use feedback into the preparation and measurement parameters of the ancilla to speed up the expected time to generate a CZ gate between a pair of separated qubits and to leverage stronger coupling strengths for faster times. Surprisingly, by choosing an appropriate strategy, control of a binary discrete parameter achieves comparable speed up to full continuous control of all degrees of freedom of the ancilla.

Kerem Halil Shah; Daniel K. L. Oi

2013-11-14T23:59:59.000Z

109

An optical fusion gate for W-states  

E-Print Network (OSTI)

We introduce a simple optical gate to fuse arbitrary size polarization entangled W-states to prepare larger W-states. The gate requires a polarizing beam splitter (PBS), a half wave plate (HWP) and two photon detectors. We study numerically and analytically the necessary resource consumption for preparing larger W-states by fusing smaller ones with the proposed fusion gate. We show analytically that resource requirement scales at most sub-exponentially with the increasing size of the state to be prepared. We numerically determine the resource cost for fusion without recycling where W-states of arbitrary size can be optimally prepared. Moreover, we introduce another strategy which is based on recycling and outperforms the optimal strategy for non-recycling case.

Sahin Kaya Ozdemir; Eiji Matsunaga; Toshiyuki Tashima; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

2011-03-11T23:59:59.000Z

110

Four-Dimensional Analysis Experiment During the Gate Period Part II  

Science Conference Proceedings (OSTI)

The GATE analysis was repeated utilizing the full GATE data set in the delayed mode and a revised four-dimensional analysis procedure. The resulting maps wore compared with maps of other author. Based on the new analysis, macroscale circulation ...

K. Miyakoda; J. Sheldon; J. Sirutis

1982-03-01T23:59:59.000Z

111

Gate-all-around silicon nanowire MOSFETs : top-down fabrication and transport enhancement techniques  

E-Print Network (OSTI)

Scaling MOSFETs beyond 15 nm gate lengths is extremely challenging using a planar device architecture due to the stringent criteria required for the transistor switching. The top-down fabricated, gate-all-around architecture ...

Hashemi, Pouya

2010-01-01T23:59:59.000Z

112

Physical-aware simulated annealing optimization of gate leakage in nanoscale datapath circuits  

Science Conference Proceedings (OSTI)

For CMOS technologies below 65nm, gate oxide direct tunneling current is a major component of the total power dissipation. This paper presents a simulated annealing based algorithm for the gate leakage current reduction by simultaneous scheduling, allocation ...

Saraju P. Mohanty; Ramakrishna Velagapudi; Elias Kougianos

2006-03-01T23:59:59.000Z

113

Workfunction Tuning of n-Channel MOSFETs Using Interfacial Yttrium Layer in Fully Silicided Nickel Gate  

E-Print Network (OSTI)

Continual scaling of the CMOS technology requires thinner gate dielectric to maintain high performance. However, when moving into the sub-45 nm CMOS generation, the traditional poly-Si gate approach cannot effectively ...

Yu, Hongpeng

114

Developing Reusable and Robust Language Processing Components for Information Systems using GATE  

Science Conference Proceedings (OSTI)

In this paper we present GATE, an architecture and a graphical development environment which enables users to develop and deploy HLT applications in a robust fashion. GATE also provides reusable, extendable, and customisable language processing modules ...

Kalina Bontcheva; Hamish Cunningham; Diana Maynard; Valentin Tablan; Horacio Saggion

2002-09-01T23:59:59.000Z

115

Embedded automatic parking management system based on RFID and existed gate system integration  

Science Conference Proceedings (OSTI)

In this paper, an Embedded Automatic Parking Management System (EAPMS) that integrates the existed gate system and RFID is proposed. This system includes Embedded Gate Hardware, Gate-PC Controller, RFID System, Parking Management Platform. Most systems ... Keywords: RFID, embedded, parking management, system integration

Ming-Shen Jian; Kuen Shiuh Yang; Chung-Lun Lee; Nan-Yuan Huang

2008-07-01T23:59:59.000Z

116

Modular RFID parking management system based on existed gate system integration  

Science Conference Proceedings (OSTI)

In this paper, a Modular RFID Parking Management System that integrates the existed gate system and RFID is proposed. This system includes Modular Gate-PC Controller and Embedded Gate Hardware, RFID System, Modular Parking Management Platform. Most systems ... Keywords: RFID, embedded, modular, parking management, system integration

Ming-Shen Jian; Kuen Shiuh Yang; Chung-Lun Lee

2008-06-01T23:59:59.000Z

117

Reducing transistor count in clocked standard cells with ambipolar double-gate FETs  

Science Conference Proceedings (OSTI)

This paper presents a set of circuit design approaches to achieve clocked standard logic cell functions with ambipolar double-gate devices such as the Double Gate Carbon Nanotube FET (DG-CNTFET). The cells presented in this work use the infield controllability ... Keywords: CNTFETs, advanced technologies, ambipolar double-gate devices, dynamic logic, standard cells

K. Jabeur; D. Navarro; I. O'Connor; P. E. Gaillardon; M. H. Ben Jamaa; F. Clermidy

2010-06-01T23:59:59.000Z

118

MaGate: An Interoperable, Decentralized and Modular High-Level Grid Scheduler  

Science Conference Proceedings (OSTI)

This work presents the design and architecture of a decentralized grid scheduler named MaGate, which is developed within the SmartGRID project and focuses on grid scheduler interoperation. The MaGate scheduler is modular structured, and emphasizes the ... Keywords: Grid Computing, MaGate Scheduler, Meta-Scheduling, Scheduling, SmartGRID

Ye Huang; Amos Brocco; Michele Courant; Beat Hirsbrunne; Pierre Kuonen

2010-07-01T23:59:59.000Z

119

Integrated Power-Gating and State Assignment for Low Power FSM Synthesis  

Science Conference Proceedings (OSTI)

Power-gating is an effective technique for reducing standby leakage power and dynamic power. In power-gating one can shut off the power supply to sections of logic block while keeping other logic blocks active. However, careful design is required to ... Keywords: Low power synthesis, Power-gating, FSM decomposition, State encoding, Genetic Algorithm

Sambhu Nath Pradhan; M. Tilak Kumar; Santanu Chattopadhyay

2008-04-01T23:59:59.000Z

120

Low power interconnect design for fpgas with bidirectional wiring using nanocrystal floating gate devices (abstract only)  

Science Conference Proceedings (OSTI)

New architectures for the switch box and connection block are proposed for use in an energy efficient field programmable gate array (FPGA) with bidirectional wiring. Power-hungry SRAMs are replaced by non-volatile nanocrystal floating gate (NCFG) devices ... Keywords: bidirectional wiring, connection block, floating gate, fpga, high speed, low power, nanocrystal, switch box

Daniel Schinke; Wallace Shep Pitts; Neil Di Spigna; Paul Franzon

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Temperature-controlled molecular depolarization gates in nuclear magnetic resonance  

SciTech Connect

Down the drain: Cryptophane cages in combination with selective radiofrequency spin labeling can be used as molecular 'transpletor' units for transferring depletion of spin polarization from a hyperpolarized 'source' spin ensemble to a 'drain' ensemble. The flow of nuclei through the gate is adjustable by the ambient temperature, thereby enabling controlled consumption of hyperpolarization.

Schroder, Leif; Schroder, Leif; Chavez, Lana; Meldrum, Tyler; Smith, Monica; Lowery, Thomas J.; E. Wemmer, David; Pines, Alexander

2008-02-27T23:59:59.000Z

122

Towards practical biomolecular computers using microfluidic deoxyribozyme logic gate networks  

Science Conference Proceedings (OSTI)

We propose a way of implementing a biomolecular computer in the laboratory using deoxyribozyme logic gates inside a microfluidic reaction chamber. We build upon our previous work, which simulated the operation of a flip-flop and an oscillator based on ...

Joseph Farfel; Darko Stefanovic

2005-06-01T23:59:59.000Z

123

Quantification of Priority-OR gates in temporal fault trees  

Science Conference Proceedings (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

124

Tropical Squall Lines over the Eastern Atlantic during GATE  

Science Conference Proceedings (OSTI)

During the entire period of GATE, all oceanic squall lines over the A/B array developed in the vicinity of the near-equatorial convergence zone (NECZ) when a strong midtropospheric easterly jet along the leading and southern borders of a Saharan ...

Yi-Leng Chen

1985-11-01T23:59:59.000Z

125

Experimental Realization of Non-Abelian Geometric Gates  

E-Print Network (OSTI)

The geometric aspects of quantum mechanics are underlined most prominently by the concept of geometric phases, which are acquired whenever a quantum system evolves along a closed path in Hilbert space. The geometric phase is determined only by the shape of this path and is -- in its simplest form -- a real number. However, if the system contains degenerate energy levels, matrix-valued geometric phases, termed non-abelian holonomies, can emerge. They play an important role for the creation of synthetic gauge fields in cold atomic gases and the description of non-abelian anyon statistics. Moreover, it has been proposed to exploit non-abelian holonomic gates for robust quantum computation. In contrast to abelian geometric phases, non-abelian ones have been observed only in nuclear quadrupole resonance experiments with a large number of spins and without fully characterizing the geometric process and its non-commutative nature. Here, we realize non-abelian holonomic quantum operations on a single superconducting artificial three-level atom by applying a well controlled two-tone microwave drive. Using quantum process tomography, we determine fidelities of the resulting non-commuting gates exceeding 95 %. We show that a sequence of two paths in Hilbert space traversed in different order yields inequivalent transformations, which is an evidence for the non-abelian character of the implemented holonomic quantum gates. In combination with two-qubit operations, they form a universal set of gates for holonomic quantum computation.

A. A. Abdumalikov; J. M. Fink; K. Juliusson; M. Pechal; S. Berger; A. Wallraff; S. Filipp

2013-04-18T23:59:59.000Z

126

Advanced Gate Drive for the SNS High Voltage Converter Modulator  

SciTech Connect

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

127

Transmission gates combined with level-restoring CMOS gates reduce glitches in low-power low-frequency multipliers  

Science Conference Proceedings (OSTI)

Various 16-bit multiplier architectures are compared in terms of dissipated energy, propagation delay, energy-delay product (EDP), and area occupation, in view of low-power low-voltage signal processing for low-frequency applications. A novel practical ... Keywords: arithmetic, glitch, low frequency, low power, multiplier, switching activity, transmission gate

Flavio Carbognani; Felix Buergin; Norbert Felber; Hubert Kaeslin; Wolfgang Fichtner

2008-07-01T23:59:59.000Z

128

Phase gate of one superconducting qubit simultaneously controlling n qubits in a cavity  

E-Print Network (OSTI)

We propose how to realize a three-step controlled-phase gate of one superconducting qubit simultaneously controlling n qubits selected from N qubits in a cavity (1nN). The operation time of this gate is independent of the number n of qubits involved in the gate operation. This phase gate controlling at once n qubits is insensitive to the initial state of the cavity mode and can be used to produce an analogous CNOT gate simultaneously acting on n qubits.

Chui-Ping Yang; Yu-xi Liu; Franco Nori

2009-07-24T23:59:59.000Z

129

A real-time respiration position based passive breath gating equipment for gated radiotherapy: A preclinical evaluation  

Science Conference Proceedings (OSTI)

Purpose: To develop a passive gating system incorporating with the real-time position management (RPM) system for the gated radiotherapy. Methods: Passive breath gating (PBG) equipment, which consists of a breath-hold valve, a controller mechanism, a mouthpiece kit, and a supporting frame, was designed. A commercial real-time positioning management system was implemented to synchronize the target motion and radiation delivery on a linear accelerator with the patient's breathing cycle. The respiratory related target motion was investigated by using the RPM system for correlating the external markers with the internal target motion while using PBG for passively blocking patient's breathing. Six patients were enrolled in the preclinical feasibility and efficiency study of the PBG system. Results: PBG equipment was designed and fabricated. The PBG can be manually triggered or released to block or unblock patient's breathing. A clinical workflow was outlined to integrate the PBG with the RPM system. After implementing the RPM based PBG system, the breath-hold period can be prolonged to 15-25 s and the treatment delivery efficiency for each field can be improved by 200%-400%. The results from the six patients showed that the diaphragm motion caused by respiration was reduced to less than 3 mm and the position of the diaphragm was reproducible for difference gating periods. Conclusions: A RPM based PBG system was developed and implemented. With the new gating system, the patient's breath-hold time can be extended and a significant improvement in the treatment delivery efficiency can also be achieved.

Hu Weigang; Xu Anjie; Li Guichao; Zhang Zhen; Housley, Dave; Ye Jinsong [Department of Radiation Oncology, Fudan University Shanghai Cancer Center and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032 (China); Department of Radiation Oncology, Swedish Cancer Institute, Seattle, Washington 98104 (United States)

2012-03-15T23:59:59.000Z

130

Structure of the gating ring from the human large-conductance Ca[superscript 2+]-gated K[superscript +] channel  

SciTech Connect

Large-conductance Ca{sup 2+}-gated K{sup +} (BK) channels are essential for many biological processes such as smooth muscle contraction and neurotransmitter release. This group of channels can be activated synergistically by both voltage and intracellular Ca{sup 2+}, with the large carboxy-terminal intracellular portion being responsible for Ca{sup 2+} sensing. Here we present the crystal structure of the entire cytoplasmic region of the human BK channel in a Ca{sup 2+}-free state. The structure reveals four intracellular subunits, each comprising two tandem RCK domains, assembled into a gating ring similar to that seen in the MthK channel and probably representing its physiological assembly. Three Ca{sup 2+} binding sites including the Ca{sup 2+} bowl are mapped onto the structure based on mutagenesis data. The Ca{sup 2+} bowl, located within the second RCK domain, forms an EF-hand-like motif and is strategically positioned close to the assembly interface between two subunits. The other two Ca{sup 2+} (or Mg{sup 2+}) binding sites, Asp367 and Glu374/Glu399, are located on the first RCK domain. The Asp367 site has high Ca{sup 2+} sensitivity and is positioned in the groove between the amino- and carboxy-terminal subdomains of RCK1, whereas the low-affinity Mg{sup 2+}-binding Glu374/Glu399 site is positioned on the upper plateau of the gating ring and close to the membrane. Our structure also contains the linker connecting the transmembrane and intracellular domains, allowing us to dock a voltage-gated K{sup +} channel pore of known structure onto the gating ring with reasonable accuracy and generate a structural model for the full BK channel.

Wu, Yunkun; Yang, Yi; Ye, Sheng; Jiang, Youxing (Zhejiang); (UTSMC)

2010-11-12T23:59:59.000Z

131

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":""}]}

132

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":""}]}

133

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

134

Bayesian estimation of one-parameter qubit gates  

E-Print Network (OSTI)

We address estimation of one-parameter unitary gates for qubit systems and seek for optimal probes and measurements. Single- and two-qubit probes are analyzed in details focusing on precision and stability of the estimation procedure. Bayesian inference is employed and compared with the ultimate quantum limits to precision, taking into account the biased nature of Bayes estimator in the non asymptotic regime. Besides, through the evaluation of the asymptotic a posteriori distribution for the gate parameter and the comparison with the results of Monte Carlo simulated experiments, we show that asymptotic optimality of Bayes estimator is actually achieved after a limited number of runs. The robustness of the estimation procedure against fluctuations of the measurement settings is investigated and the use of entanglement to improve the overall stability of the estimation scheme is also analyzed in some details.

Berihu Teklu; Stefano Olivares; Matteo G A Paris

2008-12-04T23:59:59.000Z

135

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (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.

136

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (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.

137

Optical Determination of Gate--Tunable Bandgap in Bilayer Graphene  

Science Conference Proceedings (OSTI)

The electronic bandgap is an intrinsic property of semiconductors and insulators that largely determines their transport and optical properties. As such, it has a central role in modern device physics and technology and governs the operation of semiconductor devices such as p-n junctions, transistors, photodiodes and lasers. A tunable bandgap would be highly desirable because it would allow great flexibility in design and optimization of such devices, in particular if it could be tuned by applying a variable external electric field. However, in conventional materials, the bandgap is fixed by their crystalline structure, preventing such bandgap control. Here we demonstrate the realization of a widely tunable electronic bandgap in electrically gated bilayer graphene. Using a dual-gate bilayer graphene field-effect transistor (FET) and infrared microspectroscopy, we demonstrate a gate-controlled, continuously tunable bandgap of up to 250 meV. Our technique avoids uncontrolled chemical doping and provides direct evidence of a widely tunable bandgap -- spanning a spectral range from zero to mid-infrared -- that has eluded previous attempts. Combined with the remarkable electrical transport properties of such systems, this electrostatic bandgap control suggests novel nanoelectronic and nanophotonic device applications based on graphene.

Zhang, Yuanbo; Tang, Tsung-Ta; Girit, Caglar; Hao, Zhao; Martin, Michael C.; Zettl, Alex; Crommie, Michael F.; Shen, Y. Ron; Wang, Feng

2009-08-11T23:59:59.000Z

138

GATE Center for Automotive Fuel Cell Systems at Virginia Tech  

SciTech Connect

The Virginia Tech GATE Center for Automotive Fuel Cell Systems (CAFCS) achieved the following objectives in support of the domestic automotive industry: ? Expanded and updated fuel cell and vehicle technologies education programs; ? Conducted industry directed research in three thrust areas ?? development and characterization of materials for PEM fuel cells; performance and durability modeling for PEM fuel cells; and fuel cell systems design and optimization, including hybrid and plug-in hybrid fuel cell vehicles; ? Developed MS and Ph.D. engineers and scientists who are pursuing careers related to fuel cells and automotive applications; ? Published research results that provide industry with new knowledge which contributes to the advancement of fuel cell and vehicle systems commercialization. With support from the Dept. of Energy, the CAFCS upgraded existing graduate course offerings; introduced a hands-on laboratory component that make use of Virginia Tech??s comprehensive laboratory facilities, funded 15 GATE Fellowships over a five year period; and expanded our program of industry interaction to improve student awareness of challenges and opportunities in the automotive industry. GATE Center graduate students have a state-of-the-art research experience preparing them for a career to contribute to the advancement fuel cell and vehicle technologies.

Nelson, Douglas

2011-05-31T23:59:59.000Z

139

Implementation of dynamically corrected gates for single-spin qubits  

E-Print Network (OSTI)

Precise control of an open quantum system is critical to quantum information processing, but is challenging due to inevitable interactions between the quantum system and the environment. We demonstrated experimentally at room temperature a type of dynamically corrected gates on the nitrogen-vacancy centers in diamond. The infidelity of quantum gates caused by environment nuclear spin bath is reduced from being the second-order to the sixth-order of the noise to control field ratio, which offers greater efficiency in reducing the infidelity by reducing the noise level. The decay time of the coherent oscillation driven by dynamically corrected gates is shown to be two orders of magnitude longer than the dephasing time, and is essentially limited by spin-lattice relaxation. The infidelity of DCG, which is actually constrained by the decay time, reaches $4\\times 10^{-3}$ at room temperature and is further reducible by 2-3 orders of magnitudes via lowering temperature. The greatly reduced noise dependence of infidelity and the uttermost extension of the coherent time mark an important step towards fault-tolerant quantum computation in realistic systems.

Xing Rong; Jianpei Geng; Zixiang Wang; Qi Zhang; Chenyong Ju; Fazhan Shi; Chang-Kui Duan; Jiangfeng Du

2013-09-21T23:59:59.000Z

140

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (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.

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141

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$^{-4}$.

Kim, K; Aolita, L; Hffner, H; Nebendahl, V; Blatt, R

2007-01-01T23:59:59.000Z

142

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

143

Tide gate sensor network as a forensic tool: establishing facts during superstorm sandy  

Science Conference Proceedings (OSTI)

This study presents a Sensor Network based Tide Gate Monitoring System (SensorTGMS) that automatically collects the real-time water levels at tide gates in the New Jersey Meadowlands District where ninety percent of which lies within two feet of the ... Keywords: emergency management, flood alerts, forensic analysis, hurricane, hurricane damages, sensor network, superstorm sandy, tide gate monitoring system, water level, water quality

Soon Ae Chun; Francisco Artigas

2013-06-01T23:59:59.000Z

144

Structural Insights into Ion Selectivity and Calcium Blockage in Cyclic Nucleotide Gated Channels.  

E-Print Network (OSTI)

??Cyclic nucleotides-gated (CNG) channels play an essential role in the visual and olfactory sensory systems and are ubiquitously expressed in a variety of neuronal and (more)

[No author

2010-01-01T23:59:59.000Z

145

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

- Bart Gordon, K&L Gates, Partner; Former Representative from Tennessee Stefan Heck, McKinsey & Co., Director, Leader of Global Cleantech Practice Carrie Houtman, The Dow Chemical...

146

U-9: Implementation of Parylene as a Low- ? Gate Dielectric Material ...  

Science Conference Proceedings (OSTI)

For a top gated FET, the graphene-dielectric interface play an important role in the FET behavior and mobility degradation mainly due to carrier scattering after...

147

Workshop on gate valve pressure locking and thermal binding  

SciTech Connect

The purpose of the Workshop on Gate Valve Pressure Locking and Thermal Binding was to discuss pressure locking and thermal binding issues that could lead to inoperable gate valves in both boiling water and pressurized water reactors. The goal was to foster exchange of information to develop the technical bases to understand the phenomena, identify the components that are susceptible, discuss actual events, discuss the safety significance, and illustrate known corrective actions that can prevent or limit the occurrence of pressure locking or thermal binding. The presentations were structured to cover U.S. Nuclear Regulatory Commission staff evaluation of operating experience and planned regulatory activity; industry discussions of specific events, including foreign experience, and efforts to determine causes and alleviate the affects; and valve vendor experience and recommended corrective action. The discussions indicated that identifying valves susceptible to pressure locking and thermal binding was a complex process involving knowledge of components, systems, and plant operations. The corrective action options are varied and straightforward.

Brown, E.J.

1995-07-01T23:59:59.000Z

148

GATE Air-Sea Interactions II: Numerical-Model Calculation of Regional Sea-Surface Temperature Fields Using the GATE Version III Gridded Global Data Set  

Science Conference Proceedings (OSTI)

The numerical model of air-sea interaction previously described in Brown et al. (1982), Pandolfo and Jacobs (1972) and Pandolfo (1969) is applied over a limited horizontal portion of the GATE III Gridded Global Data set (including continental ...

P. S. Brown Jr.; J. P. Pandolfo; G. D. Robinson

1982-10-01T23:59:59.000Z

149

Fault diagnosis in reversible circuits under missing-gate fault model  

Science Conference Proceedings (OSTI)

This article presents a novel technique for fault detection as well as fault location in a reversible combinational circuit under the missing gate fault model. It is shown that in an (nxn) reversible circuit implemented with k-CNOT gates, addition of ...

Hafizur Rahaman; Dipak K. Kole; Debesh K. Das; Bhargab B. Bhattacharya

2011-07-01T23:59:59.000Z

150

Event-driven gate-level simulation with GP-GPUs  

Science Conference Proceedings (OSTI)

Logic simulation is a critical component of the design tool flow in modern hardware development efforts. It is used widely -- from high-level descriptions down to gate-level ones -- to validate several aspects of the design, particularly functional correctness. ... Keywords: gate-level simulation, general purpose graphics processing unit (GP-GPU), high-performance simulation

Debapriya Chatterjee; Andrew DeOrio; Valeria Bertacco

2009-07-01T23:59:59.000Z

151

Cumulonimbus Vertical Velocity Events in GATE. Part I: Diameter, Intensity and Mass Flux  

Science Conference Proceedings (OSTI)

This is the first part of a two-part paper defining the nature of the vertical air motion in and around GATE cumulonimbus clouds. The statistics are from a total of 104 km of flight legs, flown on six days in GATE, at altitudes from near the ...

Margaret A. LeMone; Edward J. Zipser

1980-11-01T23:59:59.000Z

152

Multi-Input Floating Gate Differential Amplifier and Application to Intelligent Sensors  

Science Conference Proceedings (OSTI)

Multi-input floating gate differential amplifier (FGDA) is proposed which can perform any convolution operation with differential structure and feedback loop. All operations are in the voltage mode. Only one terminal is required for the negative feedback ... Keywords: DCT, floating gate, image compression, image sensor, signal processing

Takeyasu Sakai; Hiromasa Nagai; Takashi Matsumoto

2000-12-01T23:59:59.000Z

153

Bias temperature instability from gate charge characteristics investigations in N-Channel Power MOSFET  

Science Conference Proceedings (OSTI)

This paper reports the effects of bias temperature stress (positive and negative bias temperature instabilites, PBTI-NBTI) on threshold voltage, input capacitance and Miller capacitance of N-Channel Power MOSFET. The device is stressed with gate voltage ... Keywords: Gate charge, NBTI, PBTI, Power MOSFET, Thermal cycling, Thermal stress

M. Alwan; B. Beydoun; K. Ketata; M. Zoaeter

2007-06-01T23:59:59.000Z

154

Work function control at metal high-dielectric-constant gate oxide interfaces  

Science Conference Proceedings (OSTI)

There has been difficulty in finding metals of sufficiently large or small effective work function to act as metal electrodes on high-dielectric-constant gate oxides. To understand the factors affecting the effective work function, we have calculated ... Keywords: High K oxides, Metal gates

K. Tse; J. Robertson

2008-01-01T23:59:59.000Z

155

Dual-K Versus Dual-T Technique for Gate Leakage Reduction: A Comparative Perspective  

Science Conference Proceedings (OSTI)

As a result of aggressive technology scaling, gate leakage (gate oxide direct tunneling) has become a major component of total power dissipation. Use of dielectrics of higher permittivity (Dual-K) or use of silicon dioxide of higher thicknesses (Dual-T ...

Saraju P. Mohanty; Ramakrishna Velagapudi; Elias Kougianos

2006-03-01T23:59:59.000Z

156

Fiber-Optic Stethoscope: A Cardiac Monitoring and Gating System for Magnetic Resonance Microscopy  

E-Print Network (OSTI)

Fiber-Optic Stethoscope: A Cardiac Monitoring and Gating System for Magnetic Resonance Microscopy monitoring and gating purposes. The fiber-optic stethoscope system offers a novel approach to measuring) small enough for use on rats and mice. METHODS Fiber-Optic Stethoscope System Design As shown in the MR

157

Gate capacitance modeling and width-dependent performance of graphene nanoribbon transistors  

Science Conference Proceedings (OSTI)

The width-dependent performance of armchair GNRs-FETs is investigated by developing a fully analytical gate capacitance model based on effective mass approximation and semiclassical ballistic transport. The model incorporates the effects of edge bond ... Keywords: Analytic ballistic model, Gate capacitance, Graphene FETs, Graphene nanoribbons, Performance metrics

George S. Kliros

2013-12-01T23:59:59.000Z

158

3D modelling of an important symbol of the orthodox wooden churches: the imperial gates  

Science Conference Proceedings (OSTI)

The paper presents an on-going process to digitally reconstruct the Imperial Gates of the old Romanian orthodox churches scattered on a large geographical area in Transylvania. Due to the locations of the churches and to the indestructible character ... Keywords: 3d scanning, cultural heritage, imperial gates, orthodox wooden churches

Radu Moraru; Oana Gui; Ioan Chirila

2011-07-01T23:59:59.000Z

159

HRTEM image simulations for the study of ultra-thin gate oxides  

SciTech Connect

We have performed high resolution transmission electron microscope (HRTEM) image simulations to qualitatively assess the visibility of various structural defects in ultra-thin gate oxides of MOSFET devices, and to quantitatively examine the accuracy of HRTEM in performing gate oxide metrology. Structural models contained crystalline defects embedded in an amorphous 16 {angstrom}-thick gate oxide. Simulated images were calculated for structures viewed in cross-section. Defect visibility was assessed as a function of specimen thickness and defect morphology, composition, size and orientation. Defect morphologies included asperities lying on the substrate surface, as well as ''bridging'' defects connecting the substrate to the gate electrode. Measurements of gate oxide thickness extracted from simulated images were compared to actual dimensions in the model structure to assess TEM accuracy for metrology. The effects of specimen tilt, specimen thickness, objective lens defocus and coefficient of spherical aberration (C{sub s}) on measurement accuracy were explored for nominal 10{angstrom} gate oxide thickness. Results from this work suggest that accurate metrology of ultra-thin gate oxides (i.e. limited to several per cent error) is feasible on a consistent basis only by using a C{sub s}-corrected microscope. However, fundamental limitations remain for characterizing defects in gate oxides using HRTEM, even with the new generation of C{sub s}-corrected microscopes.

Taylor, Seth T.; Mardinly, John; O'Keefe, Michael A.

2001-07-17T23:59:59.000Z

160

Energy-Delay Tradeoffs in Combinational Logic using Gate Sizing and Supply Voltage Optimization  

E-Print Network (OSTI)

Energy-Delay Tradeoffs in Combinational Logic using Gate Sizing and Supply Voltage Optimization savings to the energy profile of a circuit. These savings are obtained by using gate sizing and supply of energy to delay is derived from a linear delay model extended to multiple supplies. The optimizations

Nikolic, Borivoje

Note: This page contains sample records for the topic "l-lake sluice gate" 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 satisfiability algorithm for constant depth boolean circuits with unbounded fan-in gates  

E-Print Network (OSTI)

Boolean Circuits with Unbounded Fan-In Gates A dissertationAC 0 by allowing unbounded fan-in M OD m 1 , . . . , M OD mSince each gate in ? has fan-in at most k and ? has depth D

Matthews, William Grant

2011-01-01T23:59:59.000Z

162

Integration of Gd silicate/TiN gate stacks into SOI n-MOSFETs  

Science Conference Proceedings (OSTI)

In this work we describe the gate first integration of gadolinium silicate (GdSiO) high-k dielectrics and metal gate electrodes into SOI n-MOSFETs. Fully functional devices are achieved and compared to reference devices with standard SiO"2. Analysis ... Keywords: Gadolinium silicate, High temperature stable high-k dielectric, SOI n-MOSFET with high-k

M. Schmidt; A. Stefani; H. D. B. Gottlob; H. Kurz

2009-07-01T23:59:59.000Z

163

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

NLE Websites -- All DOE Office Websites (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

164

Mechanism of activation gating in the full-length KcsA K[superscript +] channel  

Science Conference Proceedings (OSTI)

Using a constitutively active channel mutant, we solved the structure of full-length KcsA in the open conformation at 3.9 {angstrom}. The structure reveals that the activation gate expands about 20 {angstrom}, exerting a strain on the bulge helices in the C-terminal domain and generating side windows large enough to accommodate hydrated K{sup +} ions. Functional and spectroscopic analysis of the gating transition provides direct insight into the allosteric coupling between the activation gate and the selectivity filter. We show that the movement of the inner gate helix is transmitted to the C-terminus as a straightforward expansion, leading to an upward movement and the insertion of the top third of the bulge helix into the membrane. We suggest that by limiting the extent to which the inner gate can open, the cytoplasmic domain also modulates the level of inactivation occurring at the selectivity filter.

Uysal, Serdar; Cuello, Luis G.; Cortes, D. Marien; Koide, Shohei; Kossiakoff, Anthony A.; Perozo, Eduardo (UC)

2012-10-25T23:59:59.000Z

165

Gas-controlled dynamic vacuum insulation with gas gate  

DOE Patents (OSTI)

Disclosed is a dynamic vacuum insulation comprising sidewalls enclosing an evacuated chamber and gas control means for releasing hydrogen gas into a chamber to increase gas molecule conduction of heat across the chamber and retrieving hydrogen gas from the chamber. The gas control means includes a metal hydride that absorbs and retains hydrogen gas at cooler temperatures and releases hydrogen gas at hotter temperatures; a hydride heating means for selectively heating the metal hydride to temperatures high enough to release hydrogen gas from the metal hydride; and gate means positioned between the metal hydride and the chamber for selectively allowing hydrogen to flow or not to flow between said metal hydride and said chamber. 25 figs.

Benson, D.K.; Potter, T.F.

1994-06-07T23:59:59.000Z

166

Gas-controlled dynamic vacuum insulation with gas gate  

DOE Patents (OSTI)

Disclosed is a dynamic vacuum insulation comprising sidewalls enclosing an evacuated chamber and gas control means for releasing hydrogen gas into a chamber to increase gas molecule conduction of heat across the chamber and retrieving hydrogen gas from the chamber. The gas control means includes a metal hydride that absorbs and retains hydrogen gas at cooler temperatures and releases hydrogen gas at hotter temperatures; a hydride heating means for selectively heating the metal hydride to temperatures high enough to release hydrogen gas from the metal hydride; and gate means positioned between the metal hydride and the chamber for selectively allowing hydrogen to flow or not to flow between said metal hydride and said chamber.

Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

1994-06-07T23:59:59.000Z

167

The Gated X-ray Detector for the National Ignition Facility  

Science Conference Proceedings (OSTI)

Two new gated x-ray imaging cameras have recently been designed, constructed and delivered to the National Ignition Facility in Livermore, CA. These Gated X-ray Detectors are each designed to fit within an aluminum airbox with a large capacity cooling plane and are fitted with an array of environmental housekeeping sensors. These instruments are significant different from earlier generations of gated x-ray images due in parts to an innovative impendence matching scheme, advanced phosphor screens, pulsed phosphor circuits, precision assembly fixturing, unique system monitoring and complete remote computer control. Preliminary characterization has shown repeatable uniformity between imaging strips, improved spatial resolution and no detectable impendence reflections.

Oertel, J A; Barnes, C; Archuleta, T; Casper, L; Fatherley, V; Heinrichs, T; King, R; Landers, D; Lopez, F; Sanchez, P; Sandoval, G; Schrank, L; Walsh, P; Bell, P; Brown, M; Costa, R; Holder, J; Montalongo, S; Pederson, N

2006-05-18T23:59:59.000Z

168

Imperfect linear-optical photonic gates with number-resolving photodetection  

Science Conference Proceedings (OSTI)

We use the numerical optimization techniques of Uskov et al.[Phys. Rev. A 81, 012303 (2010)] to investigate the behavior of the success rates for Knill-Laflamme-Milburn-style [Knill et al., Nature (London) 409, 46 (2001)] two- and three-qubit entangling gates. The methods are first demonstrated at perfect fidelity and then extended to imperfect gates. We find that as the perfect fidelity condition is relaxed, the maximum attainable success rates increase in a predictable fashion depending on the size of the system, and we compare that rate of increase for several gates.

Smith, A. Matthew [Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118 (United States); Air Force Research Laboratory, Information Directorate, Rome, New York 13440 (United States); Uskov, D. B. [Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118 (United States); Department of Mathematics and Natural Sciences, Brescia University, Owensboro, Kentucky 42301 (United States); Ying, L. H.; Kaplan, L. [Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118 (United States)

2011-09-15T23:59:59.000Z

169

CNT-based gas ionizers with integrated MEMS gate for portable mass spectrometry applications  

E-Print Network (OSTI)

We report the fabrication and experimental characterization of a novel low-cost carbon nanotube (CNT)-based electron impact ionizer (EII) with integrated gate for portable mass spectrometry applications. The device achieves ...

Velasquez-Garcia, Luis Fernando

170

Diagnosis of Convective and Mesoscale Motions During Phase IH of Gate  

Science Conference Proceedings (OSTI)

Observational evidence from GATE suggests that a significant fraction of precipitation in tropical disturbances over the eastern Atlantic occurs beneath anvil-type mesoscale convective systems that are frequently associated with intense ...

Richard H. Johnson

1980-04-01T23:59:59.000Z

171

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

172

The Moist Available Energy of a Conditionally Unstable Atmosphere. Part II: Further Analysis of GATE Data  

Science Conference Proceedings (OSTI)

The generalized convective available potential energy (GCAPE) observed during GATE has been analyzed using the Lagrangian algorithm of Lorenz, as modified by Randall and Wang. The effects of ice are included and are discussed in an Appendix. A ...

Junyi Wang; David A. Randall

1994-03-01T23:59:59.000Z

173

Low-power flip-flop using internal clock gating and adaptive body bias.  

E-Print Network (OSTI)

??This dissertation presents a new systematic approach to flip-flop design using Internal Clock Gating, (ICG), and Adaptive Body-Bias, (ABB), in order to reduce power consumption. (more)

Galvis, Jorge Alberto

2006-01-01T23:59:59.000Z

174

An Analysis of Convective System on a 100-km Scale during GATE  

Science Conference Proceedings (OSTI)

Usig data on a 100 km-scale from Phase III of GATE, the kinematic and thermodynamic, properties of the mesoscale environment in which convective clouds of varying intensities exist are investigated. Classifications into disturbed and suppressed ...

R. P. Pearce; J. Bayo Omotosho

1986-08-01T23:59:59.000Z

175

A Compact Propagation Delay Model for Deep-Submicron CMOS Gates including Crosstalk  

Science Conference Proceedings (OSTI)

We present a compact, fully physical, analytical model for the propagation delay and the output transition time of deep-submicron CMOS gates. The model accounts for crosstalk effects, short-circuit currents, the input-output coupling capacitance and ...

J. L. Rossell; J. Segura

2004-02-01T23:59:59.000Z

176

Mesoscale Motion Fields Associated with a Slowly Moving GATE Convective Band  

Science Conference Proceedings (OSTI)

The structure of the convective band of 14 September in the dense GATE observing array is determined using wind and thermodynamic data primarily from multiple aircraft penetrations, which are well distributed in the vertical and in time.

Edward J. Zipser; Rebecca J. Meitn; Margaret A. LeMone

1981-08-01T23:59:59.000Z

177

Explicit Simulation of Cumulus Ensembles with the GATE Phase III Data: Comparison with Observations  

Science Conference Proceedings (OSTI)

The macroscopic behavior of cumulus convection and its mesoscale organization during Phase III of the Global Atmospheric Research Program's (GARP) Atlantic Tropical Experiment (GATE) is simulated with a two-dimensional (2D) cloud ensemble model. ...

Kuan-Man Xu; David A. Randall

1996-12-01T23:59:59.000Z

178

Single electron effects and structural effects in ultrascaled silicon nanocrystal floating-gate memories  

Science Conference Proceedings (OSTI)

In this paper, we present a nanometer-sized floating-gate memory device, fabricated on silicon-on-insulator substrate and using silicon nanocrystals as storage nodes. Single electron charging and discharging phenomena occurring at room temperature will ...

G. Molas; B. De Salvo; G. Ghibaudo; D. Mariolle; A. Toffoli; N. Buffet; R. Puglisi; S. Lombardo; S. Deleonibus

2004-03-01T23:59:59.000Z

179

Lessons learned in the design and erection of box girder bridges from the West Gate collapse  

E-Print Network (OSTI)

The West Gate Bridge, intended to span the Yarra River in Australia, collapsed during its third year of construction in 1970. Investigation into the project revealed numerous issues in the bridge's design and construction. ...

Burton, Alia Christine

2007-01-01T23:59:59.000Z

180

Electrical gating effects on the magnetic properties of (Ga,Mn)As diluted magnetic semiconductors  

E-Print Network (OSTI)

and Future Work . . . . . . . . . . . . . . . . . . . . . . . . 120 7.2.1 Voltage-pulse magnetization switching . . . . . . . . . . . . . 120 7.2.2 Electrolyte-gating . . . . . . . . . . . . . . . . . . . . . . . . . 121 A Fabrication steps 122 A.1 Processes...

Owen, Man Hon Samuel

2010-11-16T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Determination of Mean Cumulus Cloud vorticity from GATE A/B-Scale Potential Vorticity Budget  

Science Conference Proceedings (OSTI)

The effects of cumulus clouds on the large-scale potential vorticity field are investigated using GATE data. Clouds are found to modify the mean potential vorticity field not only through vertical mixing but also through the generation of ...

Lawrence Cheng; Tsoi-Ching Yip; Han-Ru Cho

1980-04-01T23:59:59.000Z

182

Further Analysis of the Composite Wind and Thermodynamic Structure of the 12 September GATE Squall Line  

Science Conference Proceedings (OSTI)

An objective analysis technique is applied to the time-composite wind and thermodynamic fields of the 12 September GATE tropical squall line. Previous subjective analyses described by Gamache and Houze are confirmed and several new results are ...

John F. Gamache; Robert A. Houze Jr.

1985-08-01T23:59:59.000Z

183

Lifetime of high-k gate dielectrics and analogy with strength of quasibrittle structures  

E-Print Network (OSTI)

The two-parameter Weibull distribution has been widely adopted to model the lifetime statistics of dielectric breakdown under constant voltage, but recent lifetime testing for high-k gate dielectrics has revealed a systematic ...

Le, Jia-Liang

184

All-optical logic gates based on vertical cavity semiconductor optical amplifiers  

E-Print Network (OSTI)

AND FIGURES Tables: Table 2.2.1: Truth Table for NOR-Gate SR13 Table 2.5.1: Truth Table for VCSOA SR Flip-Truth Table ..

Gauss, Veronica Andrea

2009-01-01T23:59:59.000Z

185

P1-15: Gating System Optimisation Design Study of a Cast ...  

Science Conference Proceedings (OSTI)

Different designs of the gating and risering systems for the cast automobile ... P1- 04: 3D Microstructural Characterization of Uranium Oxide as a Surrogate Nuclear ... P2-27: Characterization of Carbonate Rocks through X-ray Microtomography.

186

Multimodal Properties of the Surface-Wave Field Observed with Pitch-Roll Buoys During GATE  

Science Conference Proceedings (OSTI)

A sophisticated analysis technique is applied to a subset of pitch-roll buoy data collected by the research vessels Gilliss and Quadra during the GARP Tropical Atlantic Experiment (GATE) in September 1974. The procedure enables the examination of ...

Linda Marie Lawson; Robert Bryan Long

1983-03-01T23:59:59.000Z

187

A Systematic Search for Trapped Equatorial Waves in the GATE Velocity Data  

Science Conference Proceedings (OSTI)

Moored current meter data taken over a 60-day period during GATE (GARP Atlantic Tropical Experiment) near the equator at 28W, have been systematically searched for vertically propagating equatorially trapped waves. Three independent tests ...

A. M. Horigan; R. H. Weisberg

1981-04-01T23:59:59.000Z

188

The robustness of magic state distillation against errors in Clifford gates  

E-Print Network (OSTI)

Quantum error correction and fault-tolerance have provided the possibility for large scale quantum computations without a detrimental loss of quantum information. A very natural class of gates for fault-tolerant quantum computation is the Clifford gate set and as such their usefulness for universal quantum computation is of great interest. Clifford group gates augmented by magic state preparation give the possibility of simulating universal quantum computation. However, experimentally one cannot expect to perfectly prepare magic states. Nonetheless, it has been shown that by repeatedly applying operations from the Clifford group and measurements in the Pauli basis, the fidelity of noisy prepared magic states can be increased arbitrarily close to a pure magic state [1]. We investigate the robustness of magic state distillation to perturbations of the initial states to arbitrary locations in the Bloch sphere due to noise. Additionally, we consider a depolarizing noise model on the quantum gates in the decoding ...

Jochym-O'Connor, Tomas; Helou, Bassam; Laflamme, Raymond

2012-01-01T23:59:59.000Z

189

Association of State Dam Safety Officials (ASDSO)/EPRI Spillway Gate Workshop: January 5 & 6, 2000  

Science Conference Proceedings (OSTI)

Maintaining the integrity of dams at hydroelectric projects is essential to the protection of communities, the surrounding environment, and the power and resource management infrastructure. The Spillway Gate Workshop, sponsored by the Association of State Dam Safety Officials (ASDSO) and EPRI, and with funding from the Federal Emergency Management Agency (FEMA), focused on a critical aspect of the safety issues related to analysis, inspection, maintenance, and performance of spillway gates. The intent of...

2000-06-16T23:59:59.000Z

190

Carrier transport mechanism in La-incorporated high-k dielectric/metal gate stack MOSFETs  

Science Conference Proceedings (OSTI)

In this paper, carrier transport mechanism of MOSFETs with HfLaSiON was analyzed. It was shown that gate current is consisted of Schottky emission, Frenkel-Poole (F-P) emission and Fowler-Nordheim (F-N) tunneling components. Schottky barrier height is ... Keywords: Fowler-Nordheim (F-N) tunneling, Frenkel-Poole (F-P) emission, Gate current, HfLaSiON, High-k, Schottky emission, Trap energy level, Trap-assisted tunneling (TAT)

Hyuk-Min Kwon; Won-Ho Choi; In-Shik Han; Min-Ki Na; Sang-Uk Park; Jung-Deuk Bok; Chang-Yong Kang; Byoung-Hun Lee; Raj Jammy; Hi-Deok Lee

2011-12-01T23:59:59.000Z

191

GATE Center of Excellence at UAB in Lightweight Materials for Automotive Applications  

SciTech Connect

This report summarizes the accomplishments of the UAB GATE Center of Excellence in Lightweight Materials for Automotive Applications. The first Phase of the UAB DOE GATE center spanned the period 2005-2011. The UAB GATE goals coordinated with the overall goals of DOE's FreedomCAR and Vehicles Technologies initiative and DOE GATE program. The FCVT goals are: (1) Development and validation of advanced materials and manufacturing technologies to significantly reduce automotive vehicle body and chassis weight without compromising other attributes such as safety, performance, recyclability, and cost; (2) To provide a new generation of engineers and scientists with knowledge and skills in advanced automotive technologies. The UAB GATE focused on both the FCVT and GATE goals in the following manner: (1) Train and produce graduates in lightweight automotive materials technologies; (2) Structure the engineering curricula to produce specialists in the automotive area; (3) Leverage automotive related industry in the State of Alabama; (4) Expose minority students to advanced technologies early in their career; (5) Develop innovative virtual classroom capabilities tied to real manufacturing operations; and (6) Integrate synergistic, multi-departmental activities to produce new product and manufacturing technologies for more damage tolerant, cost-effective, and lighter automotive structures.

None

2011-07-31T23:59:59.000Z

192

Ca 2? permeation in cyclic nucleotide-gated channels  

E-Print Network (OSTI)

Cyclic nucleotide-gated (CNG) channels conduct Na ?, K ? and Ca2 ? currents under the control of cGMP and cAMP. Activation of CNG channels leads to depolarization of the membrane voltage and to a concomitant increase of the cytosolic Ca2 ? concentration. Several polypeptides were identified that constitute principal and modulatory subunits of CNG channels in both neurons and non-excitable cells, co-assembling to form a variety of heteromeric proteins with distinct biophysical properties. Since the contribution of each channel type to Ca2 ? signaling depends on its specific Ca2 ? conductance, it is necessary to analyze Ca2 ? permeation for each individual channel type. We have analyzed Ca2 ? permeation in all principal subunits of vertebrates and for a principal subunit from Drosophila melanogaster. We measured the fractional Ca2 ? current over the physiological range of Ca2 ? concentrations and found that Ca2 ? permeation is determined by subunit composition and modulated by membrane voltage and extracellular pH. Ca2 ? permeation is controlled by the Ca2?-binding affinity of the intrapore cation-binding site, which varies profoundly between members of the CNG channel family, and gives rise to a surprising diversity in the ability to generate Ca2 ? signals.

Claudia Dzeja; Volker Hagen; Stephan Frings

1999-01-01T23:59:59.000Z

193

Range-gated imaging for near-field target identification  

Science Conference Proceedings (OSTI)

The combination of two complementary technologies developed independently at Los Alamos National Laboratory (LANL) and Sandia National Laboratory (SNL) has demonstrated feasibility of target detection and image capture in a highly light-scattering, medium. The technique uses a compact SNL developed Photoconductive Semiconductor Switch/Laser Diode Array (PCSS/LDA) for short-range (distances of 8 to 10 m) large Field-Of-View (FOV) target illumination. Generation of a time-correlated echo signal is accomplished using a photodiode. The return image signal is recorded with a high-speed shuttered Micro-Channel-Plate Image Intensifier (MCPII), declined by LANL and manufactured by Philips Photonics. The MCPII is rated using a high-frequency impedance-matching microstrip design to produce 150 to 200 ps duration optical exposures. The ultra first shuttering producer depth resolution of a few inches along the optic axis between the MCPII and the target, producing enhanced target images effectively deconvolved from noise components from the scattering medium in the FOV. The images from the MCPII are recorded with an RS-170 Charge-Coupled-Device camera and a Big Sky, Beam Code, PC-based digitizer frame grabber and analysis package. Laser pulse data were obtained by the but jitter problems and spectral mismatches between diode spectral emission wavelength and MCPII photocathode spectral sensitivity prevented the capture of fast gating imaging with this demonstration system. Continued development of the system is underway.

Yates, G.J.; Gallegos, R.A.; McDonald, T.E. [and others

1996-12-01T23:59:59.000Z

194

Hybrid Electric Power Train and Control Strategies Automotive Technology Education (GATE) Program  

Science Conference Proceedings (OSTI)

Plug-in hybrid electric vehicles (PHEV) offer societal benefits through their ability to displace the use of petroleum fuels. Petroleum fuels represent a polluting and politically destabilizing energy carrier. PHEV technologies can move transportation away from petroleum fuel sources by enabling domestically generated electricity and liquids bio-fuels to serve as a carrier for transportation energy. Additionally, the All-Electric-Range (AER) offered by PHEVs can significantly reduce demand for expensive and polluting liquid fuels. The GATE funding received during the 1998 through 2004 funding cycle by the UC Davis Hybrid Electric Vehicle Center (HEVC) was used to advance and train researchers in PHEV technologies. GATE funding was used to construct a rigorous PHEV curriculum, provide financial support for HEVC researchers, and provide material support for research efforts. A rigorous curriculum was developed through the UC Davis Mechanical and Aeronautical Engineering Department to train HEVC researchers. Students' research benefited from this course work by advancing the graduate student researchers' understanding of key PHEV design considerations. GATE support assisted HEVC researchers in authoring technical articles and producing patents. By supporting HEVC researchers multiple Master's theses were written as well as journal articles and publications. The topics from these publications include Continuously Variable Transmission control strategies and PHEV cross platform controls software development. The GATE funding has been well used to advance PHEV systems. The UC Davis Hybrid Electric Vehicle Center is greatly appreciative for the opportunities GATE funding provided. The goals and objectives for the HEVC GATE funding were to nourish engineering research in PHEV technologies. The funding supplied equipment needed to allow researchers to investigate PHEV design sensitivities and to further optimize system components. Over a dozen PHEV researchers benefited from the GATE funding and produced journal articles and intellectual property as a result. The remainder of this document outlines the productivity resulting from GATE funds. The topics include the following: GATE Hybrid Vehicle Systems Related Courses; Students Supported; Publications; and Patents. A discussion regarding the HEVC accomplishments with respect to the GATE funding goals is provided in the conclusion.

Andrew Frank

2006-05-31T23:59:59.000Z

195

GATE Air-Sea Interaction. I: Numerical Model Calculation of Local Sea-Surface Temperatures on Diurnal Time Scales Using the GATE Version III Gridded Global Data Set  

Science Conference Proceedings (OSTI)

The numerical model of air-sea interaction previously described in Jacobs (1978), Pandolfo and Jacobs (1972) and Pandolfo (1969) is inserted at one horizontal grid point in the GATE III Gridded Global Data Set to calculate a model-generated, ...

P. S. Brown Jr.; J. P. Pandolfo; S. J. Thoren

1982-05-01T23:59:59.000Z

196

Scanning transmission electron microscopy of gate stacks with HfO2 dielectrics and TiN electrodes  

E-Print Network (OSTI)

Scanning transmission electron microscopy of gate stacksEELS) in scanning transmission electron microscopy were usedWe use scanning transmission electron microscopy (STEM)

Agustin, Melody P.; Fonseca, Leo R. C.; Hooker, Jacob C.; Stemmer, Susanne

2005-01-01T23:59:59.000Z

197

Demonstration of an all-optical quantum controlled-NOT gate  

E-Print Network (OSTI)

The promise of tremendous computational power, coupled with the development of robust error-correcting schemes, has fuelled extensive efforts to build a quantum computer. The requirements for realizing such a device are confounding: scalable quantum bits (two-level quantum systems, or qubits) that can be well isolated from the environment, but also initialized, measured and made to undergo controllable interactions to implement a universal set of quantum logic gates. The usual set consists of single qubit rotations and a controlled-NOT (CNOT) gate, which flips the state of a target qubit conditional on the control qubit being in the state 1. Here we report an unambiguous experimental demonstration and comprehensive characterization of quantum CNOT operation in an optical system. We produce all four entangled Bell states as a function of only the input qubits' logical values, for a single operating condition of the gate. The gate is probabilistic (the qubits are destroyed upon failure), but with the addition of linear optical quantum non-demolition measurements, it is equivalent to the CNOT gate required for scalable all-optical quantum computation.

J L O'Brien; G J Pryde; A G White; T C Ralph; D Branning

2004-03-08T23:59:59.000Z

198

Eye tracking and gating system for proton therapy of orbital tumors  

Science Conference Proceedings (OSTI)

Purpose: A new motion-based gated proton therapy for the treatment of orbital tumors using real-time eye-tracking system was designed and evaluated. Methods: We developed our system by image-pattern matching, using a normalized cross-correlation technique with LabVIEW 8.6 and Vision Assistant 8.6 (National Instruments, Austin, TX). To measure the pixel spacing of an image consistently, four different calibration modes such as the point-detection, the edge-detection, the line-measurement, and the manual measurement mode were suggested and used. After these methods were applied to proton therapy, gating was performed, and radiation dose distributions were evaluated. Results: Moving phantom verification measurements resulted in errors of less than 0.1 mm for given ranges of translation. Dosimetric evaluation of the beam-gating system versus nongated treatment delivery with a moving phantom shows that while there was only 0.83 mm growth in lateral penumbra for gated radiotherapy, there was 4.95 mm growth in lateral penumbra in case of nongated exposure. The analysis from clinical results suggests that the average of eye movements depends distinctively on each patient by showing 0.44 mm, 0.45 mm, and 0.86 mm for three patients, respectively. Conclusions: The developed automatic eye-tracking based beam-gating system enabled us to perform high-precision proton radiotherapy of orbital tumors.

Shin, Dongho; Yoo, Seung Hoon; Moon, Sung Ho; Yoon, Myonggeun; Lee, Se Byeong; Park, Sung Yong [Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi 410-769 (Korea, Republic of); Department of Radiation Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Gyeonggi 463-712 (Korea, Republic of); Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi 410-769 (Korea, Republic of); Department of Radiological Science, Korea University, Seoul 136-703 (Korea, Republic of); Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi 410-769 (Korea, Republic of); Proton Therapy Center, McLaren Cancer Institute, Flint, Michigan 48532 (United States)

2012-07-15T23:59:59.000Z

199

UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence  

SciTech Connect

This is the final report of the UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence which spanned from 2005-2012. The U.S. Department of Energy (DOE) established the Graduate Automotive Technology Education (GATE) Program, to provide a new generation of engineers and scientists with knowledge and skills to create advanced automotive technologies. The UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence established in 2005 is focused on research, education, industrial collaboration and outreach within automotive technology. UC Davis has had two independent GATE centers with separate well-defined objectives and research programs from 1998. The Fuel Cell Center, administered by ITS-Davis, has focused on fuel cell technology. The Hybrid-Electric Vehicle Design Center (HEV Center), administered by the Department of Mechanical and Aeronautical Engineering, has focused on the development of plug-in hybrid technology using internal combustion engines. The merger of these two centers in 2005 has broadened the scope of research and lead to higher visibility of the activity. UC Davis??s existing GATE centers have become the campus??s research focal points on fuel cells and hybrid-electric vehicles, and the home for graduate students who are studying advanced automotive technologies. The centers have been highly successful in attracting, training, and placing top-notch students into fuel cell and hybrid programs in both industry and government.

Erickson, Paul

2012-05-31T23:59:59.000Z

200

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

Note: This page contains sample records for the topic "l-lake sluice gate" 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

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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.

202

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

203

Optical imaging through turbid media with a degenerate four-wave mixing correlation time gate  

DOE Patents (OSTI)

Optical imaging through turbid media is demonstrated using a degenerate four-wave mixing correlation time gate. An apparatus and method for detecting ballistic and/or snake light while rejecting unwanted diffusive light for imaging structures within highly scattering media are described. Degenerate four-wave mixing (DFWM) of a doubled YAG laser in rhodamine 590 is used to provide an ultrafast correlation time gate to discriminate against light that has undergone multiple scattering and therefore has lost memory of the structures within the scattering medium. Images have been obtained of a test cross-hair pattern through highly turbid suspensions of whole milk in water that are opaque to the naked eye, which demonstrates the utility of DFWM for imaging through turbid media. Use of DFWM as an ultrafast time gate for the detection of ballistic and/or snake light in optical mammography is discussed.

Sappey, Andrew D. (Golden, CO)

1998-04-14T23:59:59.000Z

204

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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.

205

Performance and reliability improvement of HfSiON gate dielectrics using chlorine plasma treatment  

Science Conference Proceedings (OSTI)

The effects of chlorine plasma treatment on HfSiON gate dielectrics were investigated with respect to device performance and reliability characteristics. The chlorine plasma treatment was performed on atomic layer deposited HfSiON films to remove the residual carbon content. The optimal chlorine plasma treatment is shown to lower gate leakage current density without increasing equivalent oxide thickness of the gate stack. Secondary ion mass spectroscopy depth profiling showed that the carbon residue in HfSiON was reduced by the chlorine plasma treatment. It is demonstrated that an optimized chlorine plasma treatment improves the transistor I{sub on}-I{sub off} characteristics and reduces negative-bias temperature instability.

Park, Hong Bae; Ju, Byongsun [Samsung Electronics R and D Center (Korea, Republic of); Kang, Chang Yong; Park, Chanro; Park, Chang Seo [SEMATECH, Austin, Texas 78741 (United States); Lee, Byoung Hun [Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of); Kim, Tea Wan; Kim, Beom Seok; Choi, Rino [Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751 (Korea, Republic of)

2009-01-26T23:59:59.000Z

206

Dual Gate Thin Film Transistors Based on Indium Oxide Active Layers  

SciTech Connect

Polycrystalline Indium Oxide (In{sub 2}O{sub 3}) thin films were employed as an active channel layer for the fabrication of bottom and top gate thin film transistors. While conventional SiO{sub 2} served as a bottom gate dielectric, cross-linked poly-4-vinylphenol (PVP) was used a top gate dielectric. These nano-crystalline TFTs exhibited n-channel behavior with their transport behavior highly dependent on the thickness of the channel. The correlation between the thickness of the active layer and TFT parameters such as on/off ratio, field-effect mobility, threshold voltage were carried out. The optical spectra revealed a high transmittance in the entire visible region, thus making them promising candidates for the display technology.

Kekuda, Dhananjaya; Rao, K. Mohan; Tolpadi, Amita [Department of Physics, Manipal Institute of Technology, Manipal University, Manipal 576 104 (India); Chu, C. W. [Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan (China)

2011-07-15T23:59:59.000Z

207

Graphene Enabled Low-Control Quantum Gates between Static and Mobile Spins  

E-Print Network (OSTI)

We show that the feature of Klein tunneling makes graphene a unique interface for implementing low control quantum gates between static and mobile qubits. A ballistic electron spin is considered as the mobile qubit, while the static qubit is the electronic spin of a quantum dot fixed in a graphene nanoribbon. Scattering is the low control mechanism of the gate, which, in other systems, is really difficult to exploit because of both back-scattering and the momentum dependence of scattering. We find that Klein tunneling enables the implementation of quasi-deterministic quantum gates regardless of the momenta or the shape of the wave function of the incident electron. The Dirac equation is used to describe the system in the one particle approximation with the interaction between the static and the mobile spins modelled by a Heisenberg Hamiltonian. Furthermore, we discuss an application of this model to generate entanglement between two well separated static qubits.

G. Cordourier-Maruri; Y. Omar; R. de Coss; S. Bose

2013-06-30T23:59:59.000Z

208

High-fidelity CZ gate for resonator-based superconducting quantum computers  

E-Print Network (OSTI)

A possible building block for a scalable quantum computer has recently been demonstrated [M. Mariantoni et al., Science 334, 61 (2011)]. This architecture consists of superconducting qubits capacitively coupled both to individual memory resonators as well as a common bus. In this work we study a natural primitive entangling gate for this and related resonator-based architectures, which consists of a CZ operation between a qubit and the bus. The CZ gate is implemented with the aid of the non-computational qubit |2> state [F. W. Strauch et al., Phys. Rev. Lett. 91, 167005 (2003)]. Assuming phase or transmon qubits with 300 MHz anharmonicity, we show that by using only low frequency qubit-bias control it is possible to implement the qubit-bus CZ gate with 99.9% (99.99%) fidelity in about 17ns (23ns) with a realistic two-parameter pulse profile, plus two auxiliary z rotations. The fidelity measure we refer to here is a state-averaged intrinsic process fidelity, which does not include any effects of noise or decoherence. These results apply to a multi-qubit device that includes strongly coupled memory resonators. We investigate the performance of the qubit-bus CZ gate as a function of qubit anharmonicity, indentify the dominant intrinsic error mechanism and derive an associated fidelity estimator, quantify the pulse shape sensitivity and precision requirements, simulate qubit-qubit CZ gates that are mediated by the bus resonator, and also attempt a global optimization of system parameters including resonator frequencies and couplings. Our results are relevant for a wide range of superconducting hardware designs that incorporate resonators and suggest that it should be possible to demonstrate a 99.9% CZ gate with existing transmon qubits, which would constitute an important step towards the development of an error-corrected superconducting quantum computer.

Joydip Ghosh; Andrei Galiautdinov; Zhongyuan Zhou; Alexander N. Korotkov; John M. Martinis; Michael R. Geller

2013-01-08T23:59:59.000Z

209

The robustness of magic state distillation against errors in Clifford gates  

E-Print Network (OSTI)

Quantum error correction and fault-tolerance have provided the possibility for large scale quantum computations without a detrimental loss of quantum information. A very natural class of gates for fault-tolerant quantum computation is the Clifford gate set and as such their usefulness for universal quantum computation is of great interest. Clifford group gates augmented by magic state preparation give the possibility of simulating universal quantum computation. However, experimentally one cannot expect to perfectly prepare magic states. Nonetheless, it has been shown that by repeatedly applying operations from the Clifford group and measurements in the Pauli basis, the fidelity of noisy prepared magic states can be increased arbitrarily close to a pure magic state [1]. We investigate the robustness of magic state distillation to perturbations of the initial states to arbitrary locations in the Bloch sphere due to noise. Additionally, we consider a depolarizing noise model on the quantum gates in the decoding section of the distillation protocol and demonstrate its effect on the convergence rate and threshold value. Finally, we establish that faulty magic state distillation is more efficient than fault-tolerance-assisted magic state distillation at low error rates due to the large overhead in the number of quantum gates and qubits required in a fault-tolerance architecture. The ability to perform magic state distillation with noisy gates leads us to conclude that this could be a realistic scheme for future small-scale quantum computing devices as fault-tolerance need only be used in the final steps of the protocol.

Tomas Jochym-O'Connor; Yafei Yu; Bassam Helou; Raymond Laflamme

2012-05-30T23:59:59.000Z

210

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

E-Print Network (OSTI)

A novel high-k gate dielectric material, i.e., hafnium-doped tantalum oxide (Hf-doped TaOx), has been studied for the application of the future generation metal-oxidesemiconductor field effect transistor (MOSFET). The film's electrical, chemical, and structural properties were investigated experimentally. The incorporation of Hf into TaOx impacted the electrical properties. The doping process improved the effective dielectric constant, reduced the fixed charge density, and increased the dielectric strength. The leakage current density also decreased with the Hf doping concentration. MOS capacitors with sub-2.0 nm equivalent oxide thickness (EOT) have been achieved with the lightly Hf-doped TaOx. The low leakage currents and high dielectric constants 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 ?? tantalum nitride (TaNx) interface layer has been inserted between the Hf-doped TaOx films and the Si substrate to engineer the high-k/Si interface layer formation and properties. The electrical characterization result shows that the insertion of a 5 ?? TaNx between the doped TaOx films and the Si substrate decreased the film's leakage current density and improved the effective dielectric constant (keffective) value. The improvement of these dielectric properties can be attributed to the formation of the TaOxNy interfacial layer after high temperature O2 annealing. The main drawback of the TaNx interface layer is the high interface density of states and hysteresis, which needs to be decreased. Advanced metal nitride gate electrodes, e.g., tantalum nitride, molybdenum nitride, and tungsten nitride, were investigated as the gate electrodes for atomic layer deposition (ALD) HfO2 high-k dielectric material. Their physical and electrical properties were affected by the post metallization annealing (PMA) treatment conditions. Work functions of these three gate electrodes are suitable for NMOS applications after 800?°C PMA. Metal nitrides can be used as the gate electrode materials for the HfO2 high-k film. The novel high-k gate stack structures studied in this study are promising candidates to replace the traditional poly-Si-SiO2 gate stack structure for the future CMOS technology node.

Lu, Jiang

2005-12-01T23:59:59.000Z

211

Single-photon two-qubit SWAP gate for entanglement manipulation  

E-Print Network (OSTI)

A SWAP operation between different types of qubits of single photons is essential for manipulating hyperentangled photons for a variety of applications. We have implemented an efficient SWAP gate for the momentum and polarization degrees of freedom of single photons. The SWAP gate was utilized in a single-photon two-qubit quantum logic circuit to deterministically transfer momentum entanglement between a pair of down-converted photons to polarization entanglement. The polarization entanglement thus obtained violates Bell's inequality by more than 150 standard deviations.

Marco Fiorentino; Taehyun Kim; Franco N. C. Wong

2004-07-16T23:59:59.000Z

212

A Radar Study of Convective Cells in Mesoscale Systems in GATE. Part II: Life Cycles of Convective Cells  

Science Conference Proceedings (OSTI)

This is Part II of a two-part paper describing the vertical profile of radar reflectivity in GATE convective cells. Time-height radar life histories for 42 cells over three GATE days are examined, using data from the Quadra radar with 5-minute ...

Edward J. Szoke; Edward J. Zipser

1986-01-01T23:59:59.000Z

213

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

SciTech Connect

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

214

Recovery of negative bias temperature instability induced degradation of p-MOSFETs with SiON gate dielectric  

Science Conference Proceedings (OSTI)

This paper investigates the recovery property of p-MOSFETs with an ultra-thin SiON gate dielectric which are degraded by negative bias temperature instability (NBTI). The experimental results indicate that the recovery of the NBTI degradation occurs ... Keywords: Gate dielectric, MOSFET, Negative bias temperature instability (NBTI), Reliability, Silicon oxynitride

Y. D. Kim; S. U. Han; H. S. Kang; B. K. Kang

2008-09-01T23:59:59.000Z

215

The progress and challenges of threshold voltage control of high-k/metal-gated devices for advanced technologies (Invited Paper)  

Science Conference Proceedings (OSTI)

This paper discusses recent progress in and challenges of threshold voltage control for advanced high-k/metal-gated (HKMG) devices. It presents the impact on threshold voltage (V"t) control of incorporating La and Al into HKMG devices. A dipole moment ... Keywords: CMOS, Capping layer, EOT, High-k, Metal gate, Threshold voltage control

Hsing-Huang Tseng; Paul Kirsch; C. S. Park; Gennadi Bersuker; Prashant Majhi; Muhammad Hussain; Raj Jammy

2009-07-01T23:59:59.000Z

216

A field programmable gate array unit for the diagnosis and control of neoclassical tearing modes on MAST  

E-Print Network (OSTI)

A field programmable gate array unit for the diagnosis and control of neoclassical tearing modes OF SCIENTIFIC INSTRUMENTS 83, 10E312 (2012) A field programmable gate array unit for the diagnosis and control, University of York, York YO10 5DD, United Kingdom 2 EURATOM/CCFE Fusion Association, Culham Science Centre

217

Electrical and physical characteristics of HfLaON-gated metal-oxide-semiconductor capacitors with various nitrogen concentration profiles  

Science Conference Proceedings (OSTI)

The comparative studies of electrical and physical characteristics of HfLaON-gated metal-oxide-semiconductor (MOS) capacitors with various nitrogen concentration profiles (NCPs) were investigated. Various NCPs in HfLaON gate dielectrics were adjusted ... Keywords: Charge trapping, Current-conduction, High-k dielectric, Metal-oxide-semiconductor (MOS), Nitrogen concentration profiles (NCPs)

Chin-Lung Cheng; Jeng-Haur Horng; Hung-Yang Tsai

2011-02-01T23:59:59.000Z

218

Open-ended Taiwan history and spirit-oriented cultural politics : a study of Cloud Gate's works in the postcolonial and global age  

E-Print Network (OSTI)

The Novel and Literary History (1934-41). The BakhtinCorporealizing Taiwans History: Cloud Gates Portrait ofZhang 116-135. ---. Dance History and Cultural Politics: A

Wei, Ling-Chen

2010-01-01T23:59:59.000Z

219

A CAD tool for the power estimation of CMOS, BiCMOS and BiNMOS gates  

E-Print Network (OSTI)

This thesis describes a CAD tool for the power estimation of CMOS, BiCMOS and BiNMOS gates. Using analytical models for the transient behavior of the gates, accurate estimates of the power dissipated by each type of gate during a typical transition are arrived at. The values thus obtained show a very good agreement with those obtained from HSPICE simulations. A detailed transient analysis is performed on the BiCMOS gate in particular and a expression for the current response is derived. This piecewise expression accurately models the current behavior of the BICMOS gate taking into account all important second-order effects. The current expression obtained enables a quick and accurate estimate of the power dissipation.

Islam, Kazi Inamul

1995-01-01T23:59:59.000Z

220

Scanning gate microscopy on graphene: charge inhomogeneity and extrinsic doping This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network (OSTI)

mode tip and local top gate. Electrical transport through graphene at various back gate voltages is monitored as a function of tip voltage and tip position. Near the Dirac point, the response of graphene, USA. graphene field effect transistor (GFET), a voltage applied to a gate (capacitively coupled

Chen, Yong P.

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Numerical analysis of the heat transfer for packing design of cryogenic gate valve  

Science Conference Proceedings (OSTI)

The packing, among the components comprising the gate valve, is used to sustain the airtightness and the study on change of shape or pattern has been carried out to maximize the functions, but the study on changing the location or the size of the packing ... Keywords: cryogenic, heat transfer, liquefied natural gas, numerical analysis, packing

Si Pom Kim; Rock Won Jeon; Il Ju Hwang; Jae Hoon Lee; Won Heaop Shin

2012-04-01T23:59:59.000Z

222

Method and system for measuring gate valve clearances and seating force  

DOE Patents (OSTI)

Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner.

Casada, Donald A. (Knoxville, TN); Haynes, Howard D. (Knoxville, TN); Moyers, John C. (Oak Ridge, TN); Stewart, Brian K. (Burns, TN)

1996-01-01T23:59:59.000Z

223

Analyzing Combined Impacts of Parameter Variations and BTI in Nano-scale Logical Gates  

E-Print Network (OSTI)

Analyzing Combined Impacts of Parameter Variations and BTI in Nano-scale Logical Gates Seyab Khan conclusions. 2 Background and Analysis Framework Fig. 1(a) shows the threshold voltage increment (Vth) due variation, delay model, and presents the analysis framework. First MEDIAN Workshop 2012 7 #12;2 Seyab Khan

Hamdioui, Said

224

A quantum logic gate between a solid-state quantum bit and a photon  

E-Print Network (OSTI)

Integrated quantum photonics provides a promising route towards scalable solid-state implementations of quantum networks, quantum computers, and ultra-low power opto-electronic devices. A key component for many of these applications is the photonic quantum logic gate, where the quantum state of a solid-state quantum bit (qubit) conditionally controls the state of a photonic qubit. These gates are crucial for development of robust quantum networks, non-destructive quantum measurements, and strong photon-photon interactions. Here we experimentally realize a quantum logic gate between an optical photon and a solid-state qubit. The qubit is composed of a quantum dot (QD) strongly coupled to a nano-cavity, which acts as a coherently controllable qubit system that conditionally flips the polarization of a photon on picosecond timescales, implementing a controlled-NOT (cNOT) gate. Our results represent an important step towards solid-state quantum networks and provide a versatile approach for probing QD-photon inter...

Kim, Hyochul; Shen, Thomas C; Solomon, Glenn S; Waks, Edo; 10.1038/nphoton.2013.48

2013-01-01T23:59:59.000Z

225

The effect of interfacial layer properties on the performance of Hf-based gate stack devices  

E-Print Network (OSTI)

-k-induced oxygen deficiency in the IL consistent with the electrical data. It is concluded that high temperature. © 2006 American Institute of Physics. DOI: 10.1063/1.2362905 I. INTRODUCTION To sustain the historical rate of transistor scaling, the conventional SiO2 gate dielectric layer must be replaced

Pennycook, Steve

226

Numerical Modeling of a Line of Towering Cumulus on Day 226 of GATE  

Science Conference Proceedings (OSTI)

A three-dimensional numerical model with warm rain bulk cloud physics is used to investigate the shallow convection observed on day 226 of GATE. This convection had cloud tops at 3.0 km, cloud bases at 0.4 km and approximately 0.1 cm of rain at ...

Frank B. Lipps; Richard S. Hemler

1988-09-01T23:59:59.000Z

227

Basic State Energy Budget Analysis for Phases 1, 2 and 3 of GATE  

Science Conference Proceedings (OSTI)

A diagnostic study of the budget of zonal and eddy components of available potential and kinetic energy is presented for the large-scale basic (time-averaged) state of the atmosphere for Phases 1, 2 and 3 of GATE. The Final Validated Data Set (...

Randy A. Peppler; Dayton G. Vincent

1983-02-01T23:59:59.000Z

228

Effect of lateral strain on gate induced control of electrical conduction in single layer graphene device  

Science Conference Proceedings (OSTI)

We study numerically the effect of various types of in-plane strain on the electronic transport property in the single layer graphene connected to two metallic electrodes, with the special attention to the dependences on the gate voltage, channel length, ... Keywords: Electronic transport, Graphene, Strain

Satofumi Souma; Yusuke Ohmi; Matsuto Ogawa

2013-06-01T23:59:59.000Z

229

PGCapping: exploiting power gating for power capping and core lifetime balancing in CMPs  

Science Conference Proceedings (OSTI)

Optimizing the performance of a chip multiprocessor (CMP) within a power cap has recently received a lot of attention. However, most existing solutions rely solely on DVFS, which is anticipated to have only limited actuation ranges in the future. Power ... Keywords: chip multiprocessor, control theory, lifetime balancing, power capping, power control, power gating

Kai Ma; Xiaorui Wang

2012-09-01T23:59:59.000Z

230

Characterization of voltage-gated ionic currents in a peripheral sensory neuron in larval Drosophila  

E-Print Network (OSTI)

the normalized I-V relationship for INa in larval dbds (n = 8). These data show that in dbds, INa begins to activate at - 50 to -40 mV and reaches peak amplitude at -30 to -20 mV. Discussion In this study, we have presented measurements of volt- age-gated ionic...

Nair, Amit; Bate, Michael; Pulver, Stefan R

2010-06-02T23:59:59.000Z

231

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

E-Print Network (OSTI)

In nanometer technologies, process variation control and low power have emerged as the first order design goal after high performance. Process variations cause high variability in performance and power consumption of an IC, which affects the overall yield. Short channel effects (SCEs) deteriorate the MOSFET performance and lead to higher leakage power. Double gate devices suppress SCEs and are potential candidates for replacing Bulk technology in nanometer nodes. Threshold voltage control in planar asymmetric double gate transistor (IGFET) using a fourth terminal provides an effective means of combating process variations and low power design. In this thesis, using various case studies, we analyzed the suitability of IGFET for variation control and low power design. We also performed an extensive comparison between IGFET and Bulk for reducing variability, improving yield and leakage power reduction using power gating. We also proposed a new circuit topology for IGFET, which on average shows 33.8 percent lower leakage and 34.9 percent lower area at the cost of 2.8 percent increase in total active mode power, for basic logic gates. Finally, we showed a technique for reducing leakage of minimum sized devices designed using new circuit topology for IGFET.

Singh, Amrinder

2010-08-01T23:59:59.000Z

232

Investigating physical and chemical changes in high-k gate stacks using nanoanalytical electron microscopy  

Science Conference Proceedings (OSTI)

The thermal budget involved in processing high-k gate stacks can cause undesirable physical and chemical changes which limit device performance. The transmission electron microscope and associated analytical techniques provide a way of investigating ... Keywords: Electron energy loss near edge structure, Electron energy loss spectroscopy, High-k dielectrics, Nanoanalytical electron microscopy

A. J. Craven; M. MacKenzie; D. W. McComb; F. T. Docherty

2005-06-01T23:59:59.000Z

233

Device performance of in situ steam generated gate dielectric nitrided by remote plasma nitridation  

Science Conference Proceedings (OSTI)

In situ steam generated (ISSG) oxides have recently attracted interest for use as gate dielectrics because of their demonstrated reliability improvement over oxides formed by dry oxidation. [G. Minor, G. Xing, H. S. Joo, E. Sanchez, Y. Yokota, C. Chen, D. Lopes, and A. Balakrishna, Electrochem. Soc. Symp. Proc. 99-10, 3 (1999); T. Y. Luo, H. N. Al-Shareef, G. A. Brown, M. Laughery, V. Watt, A. Karamcheti, M. D. Jackson, and H. R. Huff, Proc. SPIE 4181, 220 (2000).] We show in this letter that nitridation of ISSG oxide using a remote plasma decreases the gate leakage current of ISSG oxide by an order of magnitude without significantly degrading transistor performance. In particular, it is shown that the peak normalized transconductance of n-channel devices with an ISSG oxide gate dielectric decreases by only 4% and the normalized drive current by only 3% after remote plasma nitridation (RPN). In addition, it is shown that the reliability of the ISSG oxide exhibits only a small degradation after RPN. These observations suggest that the ISSG/RPN process holds promise for gate dielectric applications. {copyright} 2001 American Institute of Physics.

Al-Shareef, H. N.; Karamcheti, A.; Luo, T. Y.; Bersuker, G.; Brown, G. A.; Murto, R. W.; Jackson, M. D.; Huff, H. R.; Kraus, P.; Lopes, D. (and others)

2001-06-11T23:59:59.000Z

234

A Diagnostic Study of the Diurnal Rainfall Variation in the GATE B-Scale Area  

Science Conference Proceedings (OSTI)

Heat and moisture budgets are used to compute net condensation rates in the GATE B-scale network for four hours of the day: 0000, 0600, 1200 and 1800 GMT. Budgets are presented for all phases combined, for selected periods of enhanced convection ...

Mark D. Albright; Donald R. Mock; Ernest E. Recker; Richard J. Reed

1981-07-01T23:59:59.000Z

235

The Surface Wave Environment In the GATE B/C ScalePhase III  

Science Conference Proceedings (OSTI)

The surface wave environment in the GATE B/C scale is described from wave measurements made from buoys and aircraft during Phase III (September 1974). Particular emphasis is given to the wave measurements made from the pitch-roll buoy deployed in ...

V. Cardone; H. Carlson; J. A. Ewing; K. Hasselmann; S. Lazanoff; W. McLeish; D. Ross

1981-09-01T23:59:59.000Z

236

UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence  

DOE Green Energy (OSTI)

UC Davis??s existing GATE centers have become the campus??s research focal points on fuel cells and hybrid-electric vehicles, and the home for graduate students who are studying advanced automotive technologies. The centers have been highly successful in attracting, training, and placing top-notch students into fuel cell and hybrid programs in both industry and government.

Erickson, Paul

2012-05-31T23:59:59.000Z

237

Self?aligned high electron mobility transistor gate fabrication using focused ion beams  

Science Conference Proceedings (OSTI)

A new gate fabrication technique has been developed based on focused ion beam exposure and reactive ion etching of a polymethylmethacrylate (PMMA)/Ge/PMMA multilevel resist structure. The focused ion beam exposes the thin PMMA imaging layer that is transferred directly to the germanium layer using reactive ion etching (RIE). The underlying resist is etched first in oxygen at high pressure

G. M. Atkinson; R. L. Kubena; L. E. Larson; L. D. Nguyen; F. P. Stratton; L. M. Jelloian; M. V. Le; H. McNulty

1991-01-01T23:59:59.000Z

238

Useful-Skew Clock Routing with Gate Sizing for Low Power Design  

Science Conference Proceedings (OSTI)

This paper presents a new problem formulation and algorithm of clock routing combined with gate sizing for minimizing total logic and clock power. Instead of zero-skew or assuming a fixed skew bound, we seek to produce useful skews in clock routing. ...

Joe Gufeng Xi; Wayne Wei-Ming Dai

1997-07-01T23:59:59.000Z

239

US DOE Sponsored Graduate Automotive Technology Education (GATE) Program at Penn State Emphasizing  

E-Print Network (OSTI)

- power in-vehicle energy storage for hybrid electric and fuel cell vehicles covering the fundamental into energy storage curriculum including vehicle topologies, advanced combustion, fuel cells, power from DOE. ME 597F HIL Advanced Vehicles (3) Contact: Joel R. Anstrom Director of Penn State GATE Center

Lee, Dongwon

240

A low-power, multichannel gated oscillator-based CDR for short-haul applications  

Science Conference Proceedings (OSTI)

A gated current-controlled oscillator (GCCO) based topology is used to implement a low-power multi-channel clock and data recovery (CDR) system in a 0.18um digital CMOS technology. A systematic approach is presented to design a reliable and low-power ...

Armin Tajalli; Paul Muller; Mojtaba Atarodi; Yusuf Leblebici

2005-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" from the National Library of EnergyBeta (NLEBeta).
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241

Uniaxial Strain Effects on the Performance of a Ballistic Top Gate Graphene Nanoribbon on Insulator Transistor  

Science Conference Proceedings (OSTI)

The effects of uniaxial strain on the bandgap and performance of a top gate graphene nanoribbon (GNR) on insulator transistor are studied using pi-orbital basis 3-D ballistic quantum simulation. The bandgap variation with strain shows zigzag pattern ... Keywords: Graphene nanoribbon (GNR) on insulator transistor, nonequilibrium Green's function (NEGF) formalism, performance of GNR transistor, strain effects

K. Alam

2009-07-01T23:59:59.000Z

242

Novel universal threshold logic gate based on RTD and its application  

Science Conference Proceedings (OSTI)

Resonant tunneling diodes (RTDs) are receiving much attention because of their high-speed switching capability and functional versatility. Due to the negative differential resistance exhibited by RTDs, great functionality with a single gate can be achieved. ... Keywords: Monostable-bistable logic element (MOBILE), Resonant tunneling diode (RTD), Spectral technology, Threshold logic

Yi Wei; Jizhong Shen

2011-06-01T23:59:59.000Z

243

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

E-Print Network (OSTI)

of nuclear theft in Russia, Pakistan, and from HEU-fueled research reactors are highlighted. SecondGuardians 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.

244

Dosimetric effect of intrafraction tumor motion in phase gated lung stereotactic body radiotherapy  

Science Conference Proceedings (OSTI)

Purpose: A major concern for lung intensity modulated radiation therapy delivery is the deviation of actually delivered dose distribution from the planned one due to simultaneous movements of multileaf collimator (MLC) leaves and tumor. For gated lung stereotactic body radiotherapy treatment (SBRT), the situation becomes even more complicated because of SBRT's characteristics such as fewer fractions, smaller target volume, higher dose rate, and extended fractional treatment time. The purpose of this work is to investigate the dosimetric effect of intrafraction tumor motion during gated lung SBRT delivery by reconstructing the delivered dose distribution with real-time tumor motion considered. Methods: The tumor motion data were retrieved from six lung patients. Each of them received three fractions of stereotactic radiotherapy treatments with Cyberknife Synchrony (Accuray, Sunnyvale, CA). Phase gating through an external surrogate was simulated with a gating window of 5 mm. The resulting residual tumor motion curves during gating (beam-on) were retrieved. Planning target volume (PTV) was defined as physician-contoured clinical target volume (CTV) surrounded by an isotropic 5 mm margin. Each patient was prescribed with 60 Gy/3 fractions. The authors developed an algorithm to reconstruct the delivered dose with tumor motion. The DMLC segments, mainly leaf position and segment weighting factor, were recalculated according to the probability density function of tumor motion curve. The new DMLC sequence file was imported back to treatment planning system to reconstruct the dose distribution. Results: Half of the patients in the study group experienced PTV D95% deviation up to 26% for fractional dose and 14% for total dose. CTV mean dose dropped by 1% with tumor motion. Although CTV is almost covered by prescribed dose with 5 mm margin, qualitative comparison on the dose distributions reveals that CTV is on the verge of underdose. The discrepancy happens due to tumor excursion outside of the gating window, which, for our study group, is mainly caused by baseline shift, i.e., the change in general trend of the motion curve during extended period of treatment time. Conclusions: The dose deviation in PTV and CTV due to target motion is not always negligible in gated SBRT. Although CTVs are covered sufficiently with prescribed dose in most cases, some are on the verge of underdose due to large tumor excursion caused by factors such as baseline shift.

Zhao Bo; Yang Yong; Li Tianfang; Li Xiang; Heron, Dwight E.; Huq, M. Saiful [Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15232 (United States) and Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, Texas 75390 (United States); Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15232 (United States)

2012-11-15T23:59:59.000Z

245

High fidelity gate operations within the coupled nuclear and electron spins of a nitrogen vacancy center in diamond  

E-Print Network (OSTI)

In this article we investigate the dynamics of a single negatively charged nitrogen-vacancy center (NV-) coupled to the spin of the nucleus of a 15-nitrogen atom and show that high fidelity gate operations are possible without the need for complicated composite pulse sequences. These operations include both the electron and nuclear spin rotations, as well as an entangling gate between them. These are experimentally realizable gates with current technology of sufficiently high fidelities that they can be used to build graph states for quantum information processing tasks.

Mark S. Everitt; Simon Devitt; W. J. Munro; Kae Nemoto

2013-09-12T23:59:59.000Z

246

An in depth examination of semi floating gate ultra low voltage flip-flops for high speed applications.  

E-Print Network (OSTI)

??In this thesis 4 different ultra low voltage (ULV) flip-flops are presented. Floating gates has been exploited to significantly increase the drain-source current. This technique (more)

Simenstad, Erik Jonathan

2013-01-01T23:59:59.000Z

247

MOLECULAR AND CELLULAR CONSEQUENCES OF DISEASE ASSOCIATED PROCESSING DEFECTS IN CONE PHOTORECEPTOR CYCLIC NUCLEOTIDE-GATED CHANNELS .  

E-Print Network (OSTI)

??Cyclic nucleotide-gated (CNG) channels are heterotetrameric (2A3:2B3) cation channels critical to the molecular cascade that couples light stimulus to membrane potential changes in photoreceptor cells. (more)

Duricka, Deborah Lynn

2011-01-01T23:59:59.000Z

248

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

249

Implications of Simultaneous Requirements for Low Noise Exchange Gates in Double Quantum Dots  

E-Print Network (OSTI)

Achieving low-error, exchange-interaction operations in quantum dots for quantum computing imposes simultaneous requirements on the exchange energy's dependence on applied voltages. A double quantum dot (DQD) qubit, approximated with a quadratic potential, is solved using a full configuration interaction method. This method is more accurate than Heitler-London and Hund-Mulliken approaches and captures new and significant qualitative behavior. We show that multiple regimes can be found in which the exchange energy's dependence on the bias voltage between the dots is compatible with current quantum error correction codes and state-of-the-art electronics. Identifying such regimes may prove valuable for the construction and operation of quantum gates that are robust to charge fluctuations, particularly in the case of dynamically corrected gates.

Nielsen, Erik; Muller, Richard P; Carroll, M S

2010-01-01T23:59:59.000Z

250

Implications of Simultaneous Requirements for Low Noise Exchange Gates in Double Quantum Dots  

E-Print Network (OSTI)

Achieving low-error, exchange-interaction operations in quantum dots for quantum computing imposes simultaneous requirements on the exchange energy's dependence on applied voltages. A double quantum dot (DQD) qubit, approximated with a quadratic potential, is solved using a full configuration interaction method. This method is more accurate than Heitler-London and Hund-Mulliken approaches and captures new and significant qualitative behavior. We show that multiple regimes can be found in which the exchange energy's dependence on the bias voltage between the dots is compatible with current quantum error correction codes and state-of-the-art electronics. Identifying such regimes may prove valuable for the construction and operation of quantum gates that are robust to charge fluctuations, particularly in the case of dynamically corrected gates.

Erik Nielsen; Ralph W. Young; Richard P. Muller; M. S. Carroll

2009-08-31T23:59:59.000Z

251

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

252

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

E-Print Network (OSTI)

Nanocrystals embedded zirconium-doped hafnium oxide (ZrHfO) high-k gate dielectric films have been studied for the applications of the future metal oxide semiconductor field effect transistor (MOSFET) and nonvolatile memory. ZrHfO has excellent gate dielectric properties and can be prepared into MOS structure with a low equivalent oxide thickness (EOT). Ruthenium (Ru) modification effects on the ZrHfO high-k MOS capacitor have been investigated. The bulk and interfacial properties changed with the inclusion of Ru nanoparticles. The permittivity of the ZrHfO film was increased while the energy depth of traps involved in the current transport was lowered. However, the barrier height of titanium nitride (TiN)/ZrHfO was not affected by the Ru 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 can be replaced by the novel floating gate structure composed of discrete nanodots embedded in the high-k film. By replacing the SiO2 layer with the ZrHfO film, promising memory functions, e.g., low programming voltage and long charge retention time, can be expected. In this study, the ZrHfO high-k MOS capacitors that separately contain nanocrystalline ruthenium oxide (nc-RuO), indium tin oxide (nc-ITO), and zinc oxide (nc-ZnO) have been successfully fabricated by the sputtering deposition method followed with the rapid thermal annealing process. Material and electrical properties of these kinds of memory devices have been investigated using analysis tools such as XPS, XRD, and HRTEM; electrical characterizations such as C-V, J-V, CVS, and frequency-dependent measurements. All capacitors showed an obvious memory window contributed by the charge trapping effect. The formation of the interface at the nc-RuO/ZrHfO and nc-ITO/ZrHfO contact regions was confirmed by the XPS spectra. Charges were deeply trapped to the bulk nanocrystal sites. However, a portion of holes were loosely trapped at the nanocrystal/ZrHfO interface. Charges trapped to the different sites lead to different detrapping characteristics. For further improving the memory functions, the dual-layer nc-ITO and -ZnO embedded ZrHfO gate dielectric stacks have been fabricated. The dual-layer embedded structure contains two vertically-separated nanocrystal layers with a higher density than the single-layer embedded structure. The critical memory functions, e.g., memory window, programming efficiency, and charge retention can be improved by using the dual-layer nanocrystals embedded floating gate structure. This kind of gate dielectric stack is vital for the next-generation nonvolatile memory applications.

Lin, Chen-Han

2011-08-01T23:59:59.000Z

253

An entangling quantum-logic gate operated with an ultrabright single photon-source  

E-Print Network (OSTI)

We demonstrate unambiguous entangling operation of a photonic quantum-logic gate driven by an ultrabright solid-state single-photon source. Indistinguishable single photons emitted by a single semiconductor quantum dot in a micropillar optical cavity are used as target and control qubits. For a source brightness of 0.56 collected photons-per-pulse, the measured truth table has an overlap with the ideal case of 68.4%, increasing to 73.0% for a source brightness of 0.17 photons- per-pulse. The gate is entangling: at a source brightness of 0.48, the Bell-state fidelity is above the entangling threshold of 50%, and reaches 71.0% for a source brightness of 0.15.

O. Gazzano; M. P. Almeida; A. K. Nowak; S. L. Portalupi; A. Lematre; I. Sagnes; A. G. White.; P. Senellart

2013-03-01T23:59:59.000Z

254

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

-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

255

Conservation-Law-Induced Quantum Limits for Physical Realizations of the Quantum NOT Gate  

E-Print Network (OSTI)

In recent investigations, it has been found that conservation laws generally lead to precision limits on quantum computing. Lower bounds of the error probability have been obtained for various logic operations from the commutation relation between the noise operator and the conserved quantity or from the recently developed universal uncertainty principle for the noise-disturbance trade-off in general measurements. However, the problem of obtaining the precision limit to realizing the quantum NOT gate has eluded a solution from these approaches. Here, we develop a new method for this problem based on analyzing the trace distance between the output state from the realization under consideration and the one from the ideal gate. Using the mathematical apparatus of orthogonal polynomials, we obtain a general lower bound on the error probability for the realization of the quantum NOT gate in terms of the number of qubits in the control system under the conservation of the total angular momentum of the computational qubit plus the the control system along the direction used to encode the computational basis. The lower bound turns out to be more stringent than one might expect from previous results. The new method is expected to lead to more accurate estimates for physical realizations of various types of quantum computations under conservation laws, and to contribute to related problems such as the accuracy of programmable quantum processors.

Tokishiro Karasawa; Masanao Ozawa

2007-05-14T23:59:59.000Z

256

Dynamic and short-circuit power of CMOS gates driving lossless transmission lines  

E-Print Network (OSTI)

AbstractThe dynamic and short-circuit power consumption of a complementary metaloxidesemidconductor (CMOS) gate driving an inductancecapacitance (LC) transmission line as a limiting case of an RLC transmission line is investigated in this paper. Closed-form solutions for the output voltage and shortcircuit power of a CMOS gate driving an LC transmission line are presented. A closed form solution for the short-circuit power is also presented. These solutions agree with circuit simulations within 11 % error for a wide range of transistor widths and line impedances for a 0.25-"m CMOS technology. The ratio of the short circuit to dynamic power is shown to be less than 7 % for CMOS gates driving LC transmission lines where the line is matched or underdriven. The total power consumption is expected to decrease as inductance effects becomes more significant as compared to a resistancecapacitance (RC)-dominated interconnect line. Index TermsCMOS, dynamic, interconnect, LC, power dissipation, RC, RLC, short-circuit, transmission lines.

Yehea I. Ismail; Eby G. Friedman; Senior Member; Jose Luis Neves

1999-01-01T23:59:59.000Z

257

Pulse-dilation enhanced gated optical imager with 5 ps resolution (invited)  

Science Conference Proceedings (OSTI)

A 5 ps gated framing camera was demonstrated using the pulse-dilation of a drifting electron signal. The pulse-dilation is achieved by accelerating a photoelectron derived information pulse with a time varying potential [R. D. Prosser, J. Phys. E 9, 57 (1976)]. The temporal dependence of the accelerating potential causes a birth time dependent axial velocity dispersion that spreads the pulse as it transits a drift region. The expanded pulse is then imaged with a conventional gated microchannel plate based framing camera and the effective gating time of the combined instrument is reduced over that of the framing camera alone. In the drift region, electron image defocusing in the transverse or image plane is prevented with a large axial magnetic field. Details of the unique issues associated with rf excited photocathodes were investigated numerically and a prototype instrument based on this principle was recently constructed. Temporal resolution of the instrument was measured with a frequency tripled femtosecond laser operating at 266 nm. The system demonstrated 20x temporal magnification and the results are presented here. X-ray image formation strategies and photometric calculations for inertial confinement fusion implosion experiments are also examined.

Hilsabeck, T. J.; Kilkenny, J. D. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States); Hares, J. D.; Dymoke-Bradshaw, A. K. L. [Kentech Instruments Ltd., Wallingford, Oxfordshire OX10 (United Kingdom); Bell, P. M.; Koch, J. A.; Celliers, P. M.; Bradley, D. K.; McCarville, T.; Pivovaroff, M.; Soufli, R.; Bionta, R. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

2010-10-15T23:59:59.000Z

258

Application of support vector machines in scour prediction on grade-control structures  

Science Conference Proceedings (OSTI)

Research into the problem of predicting the maximum depth of scour on grade-control structures like sluice gates, weirs and check dams, etc., has been mainly of an experimental nature and several investigators have proposed a number of empirical relations ... Keywords: Back propagation neural network, Grade-control structures, Modeling, Scour, Support vector machines

Arun Goel; Mahesh Pal

2009-03-01T23:59:59.000Z

259

Light-induced switching in the back-gated organic transistors with built-in conduction channel  

E-Print Network (OSTI)

We report on observation of a light-induced switching of the conductance in the back-gated organic field-effect transistors (OFETs) with built-in conduction channel. In the studied devices, the built-in channel is formed owing to the self-sensitized photo-oxidation of rubrene surface. In the dark, the back gate controls the charge injection from metal contacts into the built-in channel: the high-current ON state corresponds to zero or negative back-gate voltage; the low-current OFF state - to a positive back-gate voltage that blocks the Schottky contacts. Illumination of the OFET in the OFF state with a short pulse of light switches the device into the ON state that persists in the dark for days. The OFF state can be restored by cycling the back gate voltage. The observed effect can be explained by screening of the back-gate electric field by the charges photo-generated in the bulk of organic semiconductor.

V. Podzorov; V. M. Pudalov; M. E. Gershenson

2004-06-29T23:59:59.000Z

260

Optimal control of quantum gates and suppression of decoherence in a system of interacting two-level particles  

E-Print Network (OSTI)

Methods of optimal control are applied to a model system of interacting two-level particles (e.g., spin-half atomic nuclei or electrons or two-level atoms) to produce high-fidelity quantum gates while simultaneously negating the detrimental effect of decoherence. One set of particles functions as the quantum information processor, whose evolution is controlled by a time-dependent external field. The other particles are not directly controlled and serve as an effective environment, coupling to which is the source of decoherence. The control objective is to generate target one- and two-qubit unitary gates in the presence of strong environmentally-induced decoherence and under physically motivated restrictions on the control field. The quantum-gate fidelity, expressed in terms of a novel state-independent distance measure, is maximized with respect to the control field using combined genetic and gradient algorithms. The resulting high-fidelity gates demonstrate the feasibility of precisely guiding the quantum evolution via optimal control, even when the system complexity is exacerbated by environmental coupling. It is found that the gate duration has an important effect on the control mechanism and resulting fidelity. An analysis of the sensitivity of the gate performance to random variations in the system parameters reveals a significant degree of robustness attained by the optimal control solutions.

Matthew Grace; Constantin Brif; Herschel Rabitz; Ian A. Walmsley; Robert L. Kosut; Daniel A. Lidar

2007-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

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

SciTech Connect

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

262

Improved Off-State Stress Critical Voltage on AlGaN/GaN High Electron Mobility Transistors Utilizing Pt/Ti/Au Based Gate Metallization  

Science Conference Proceedings (OSTI)

The critical voltage for degradation of AlGaN/GaN high electron mobility transistors (HEMTs) employed with the Pt/Ti/Au gate metallization instead of the commonly used Ni/Au was significantly increased during the off-state stress. The typical critical voltage for HEMTs with Ni/Au gate metallization was around -60V. By sharp contrast, no critical voltage was observed for the HEMTs with Pt/Ti/Au gate metallization, even up to -100V, which was the instrumental limitation in this experiment. Both Schottky forward and reverse gate characteristics of the Ni/Au degraded once the gate voltage passed the critical voltage of around -60V. There was no degradation exhibited for the HEMTs with Pt-gated HEMTs.

Lo, C. F. [University of Florida; Liu, L. [University of Florida, Gainesville; Kang, Tsung Sheng [University of Florida, Gainesville; Davies, Ryan [University of Florida; Gila, Brent P. [University of Florida, Gainesville; Pearton, S. J. [University of Florida; Kravchenko, Ivan I [ORNL; Laboutin, O. [Kopin Corporation, Taunton, MA; Cao, Yu [Kopin Corporation, Taunton, MA; Johnson, Wayne J. [Kopin Corporation, Taunton, MA; Ren, F. [University of Florida

2011-01-01T23:59:59.000Z

263

Evaluation of hydrogen and ammonia gas mixtures with the suspended- gate field-effect transistor sensor array  

DOE Green Energy (OSTI)

Generation of hydrogen represents a severe industrial hazard primarily because the mixture of hydrogen with air in the ratio 4.0--74.2 vol % is explosive. In some industrial applications, such as waste remediation, hydrogen, as a product of radiolysis and corrosion, occurs in the presence of ammonia, nitrous oxide, water vapor and other molecules. A low cost, reliable method for monitoring these gaseous mixtures is essential. Palladium-based layers have been used successfully as hydrogen sensitive layers in several potentiometric sensors for many years. Since the sensing mechanism is based on the catalytic decomposition of hydrogen molecules, other hydrogen-bearing gases can also produce a response. From this viewpoint, using an array of sensing elements with catalytic and noncatalytic chemically selective layers in these applications can be highly effective. Moreover, integration of this array on a single chip can be routinely achieved. The Suspended Gate Field-Effect Transistor (SGFET) is microfabricated in silicon. The metal gate of the transistor is separated from the substrate by an air gap. The chemically sensitive layer is electrodeposited on the bottom of the suspended gate. Chemical species can penetrate into the gate area and interact with the sensing layer. This interaction modulates the work function of the layer. The change in the work function results in the shift of the transistor threshold voltage. The measured threshold voltage shift is a function of the gas concentration in the sensor vicinity. By passing a small current through the suspended gate, it is possible to control the operating temperature of the sensing layer (up to 200{degrees}C) and, therefore, to modulate the sensor sensitivity, selectivity, response and recovery times. Due to the very low thermal mass, the heat is localized on the gate so that many devices can be operated on a single chip, each with the gate at different temperature.

Domansky, K.; Li, H.S.; Josowicz, M.; Janata, J.

1995-12-01T23:59:59.000Z

264

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

Science Conference Proceedings (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

265

Accelerated Publication: Drain current enhancement and negligible current collapse in GaN MOSFETs with atomic-layer-deposited HfO2 as a gate dielectric  

Science Conference Proceedings (OSTI)

Accumulation-type GaN metal-oxide-semiconductor field-effect-transistors (MOSFET's) with atomic-layer-deposited HfO"2 gate dielectrics have been fabricated; a 4@mm gate-length device with a gate dielectric of 14.8nm in thickness (an equivalent SiO"2 ... Keywords: Atomic layer deposition (ALD), Current collapse, GaN, HfO2, Metal-oxide-semiconductor field-effect-transistor (MOSFET)

Y. C. Chang; W. H. Chang; Y. H. Chang; J. Kwo; Y. S. Lin; S. H. Hsu; J. M. Hong; C. C. Tsai; M. Hong

2010-11-01T23:59:59.000Z

266

The effective Hamiltonian of the Pound-Overhauser controlled-NOT gate, submitted for publication  

E-Print Network (OSTI)

Abstract. In NMR-based quantum computing, it is known that the controlled-NOT gate can be implemented by applying a low-power, monochromatic radiofrequency field to one peak of a doublet in a weakly-coupled two-spin system. This is known in NMR spectroscopy as Pound-Overhauser double resonance. The transition Hamiltonian that has been associated with this procedure is however only an approximation, which ignores off-resonance effects and does not correctly predict the associated phase factors. In this paper, the exact effective Hamiltonian for evolution of the spins state in a rotating frame is derived, both under irradiation of a single peak (on-transition) as well as between the peaks of the doublet (onresonance). The accuracy of these effective Hamiltonians is validated by comparing the observable product operator components of the density matrix obtained by simulation to those obtained by fitting the corresponding experiments. It is further shown that an on-resonance field yields a new implementation of the controlled-NOT gate up to phase factors, wherein the field converts the I A z state into the antiphase state 2IAx IBz, which is then converted into the desired two-spin order 2I A z IBz by a broadband ?/2 pulse selective for the A spin. In the on-transition case, it is explained that while a controlled-NOT gate is approximately obtained whenever the radio-frequency field power is low compared to the spin-spin coupling, at certain specific power levels an exact implementation is obtained up to phase factors. For both these implementations, the phase factors are derived exactly, enabling them to be corrected. In Appendices, the on-resonance Hamiltonian is analytically diagonalized, and proofs are given that, in the weak-coupling approximation, off-resonance effects can be neglected whenever the radio-frequency field power is small compared to the difference in resonance frequencies of the two spins.

David G Cory; Amy E Dunlop; Timothy F Havel; S Somaroo; Wurong Zhang

1999-01-01T23:59:59.000Z

267

Gain-offunction mutations reveal expanded intermediate states and a sequential action of two gates in  

E-Print Network (OSTI)

abstract The tension-driven gating transition in the large mechanosensitive channel MscL proceeds through detectable states of intermediate conductance. Gain-of-function (GOF) mutants with polar or charged substitutions in the main hydrophobic gate display altered patterns of subconducting states, providing valuable information about gating intermediates. Here we present thermodynamic analysis of several GOF mutants to clarify the nature and position of low-conducting conformations in the transition pathway. Unlike wild-type (WT) MscL, which predominantly occupies the closed and fully open states with very brief substates, the mild V23T GOF mutant frequently visits a multitude of short-lived subconducting states. Severe mutants V23D and G22N open in sequence: closed (C) ? low-conducting substate (S) ? open (O), with the first subtransition occurring at lower tensions. Analyses of equilibrium state occupancies as functions of membrane tension show that the C?S subtransition in WT MscL is associated with only a minor conductance increment, but the largest in-plane expansion and free energy change. The GOF substitutions strongly affect the first subtransition by reducing area (?A) and energy (?E) changes between C and S states commensurably with the severity of mutation. GOF mutants also exhibited a considerably larger ?E associated with the second (S?O) subtransition, but a ?A similar to WT. The area changes indicate that closed conformations of GOF mutants are physically preexpanded. The tension dependencies of rate constants for channel closure (k off) predict different positions of rate-limiting barriers on the energy-area profiles

Andriy Anishkin; Chien-sung Chiang; Sergei Sukharev

2005-01-01T23:59:59.000Z

268

Cloning and first functional characterization of a plant cyclic nucleotide-gated cation channel  

Science Conference Proceedings (OSTI)

Cyclic nucleotide-gated (cng) non-selective cation channels have been cloned from a number of animal systems. These channels are characterized by direct gating upon cAMO or cGMO binding to the intracellular portion of the channel protein, which leads to an increase in channel conductance. Animal cng channels are involved in signal transduction systems; they translate stimulus-induced changes in cytosolic cyclic nucleotide into altered cell membrane potential and/or cation flux as part of a signal cascade pathway. Putative plant homologs of animal cng channels have been identified. However, functional characterization (i.e., demonstration of cyclic-nucleotide-dependent ion currents) of a plant cng channel has not yet been accomplished. The authors report the cloning and first functional characterization of a plant member of this family of ion channels. The Arabidopsis cDNA AtCNGC2 encodes a polypeptide with deduced homology to the {alpha}-subunit of animal channels, and facilitates cyclic nucleotide-dependent cation currents upon expression in a number of heterologous systems. AtCNGC2 expression in a yeast mutant lacking a low-affinity K{sup +} uptake system complements growth inhibition only when lipophilic nucleotides are present in the culture medium. Voltage clamp analysis indicates that Xenopus lawvis oocytes injected with AtCNGC2 cRNA demonstrate cyclic-nucleotide-dependent, inward-rectifying K{sup +} currents. Human embryonic kidney cells (HEK293) transfected with AtCNGC2 cDNA demonstrate increased permeability to Ca{sup 2+} only in the presence of lipophilic cyclic nucleotides. The evidence presented here supports the functional classification of AtCNGC2 as a cyclic-nucleotide-gated cation channel, and presents the first direct evidence identifying a plant member of this ion channel family.

Leng, Q.; Mercier, R.W.; Yao, W.; Berkowitz, G.A.

1999-11-01T23:59:59.000Z

269

Design of a scanning gate microscope in a cryogen-free dilution refrigerator  

E-Print Network (OSTI)

We report on our design of a scanning gate microscope housed in a cryogen-free dilution refrigerator with a base temperature of 15 mK. The recent increase in efficiency of pulse tube cryocoolers has made cryogen-free systems popular in recent years. However, this new style of cryostat presents challenges for performing scanning probe measurements, mainly as a result of the vibrations introduced by the cryocooler. We demonstrate scanning with root-mean-square vibrations of 0.8 nm at 3 K and 2.1 nm at 15 mK in a 1 kHz bandwidth with our design.

Pelliccione, Matthew; Bartel, John; Keller, Andrew; Goldhaber-Gordon, David

2012-01-01T23:59:59.000Z

270

Demonstration of an optical quantum controlled-NOT gate without path interference  

E-Print Network (OSTI)

We report the first experimental demonstration of an optical quantum controlled-NOT gate without any path interference, where the two interacting path interferometers of the original proposals (Phys. Rev. A {\\bf 66}, 024308 (2001), Phys. Rev. A {\\bf 65}, 012314 (2002)) have been replaced by three partially polarizing beam splitters with suitable polarization dependent transmittances and reflectances. The performance of the device is evaluated using a recently proposed method (Phys. Rev. Lett. {\\bf 94}, 160504 (2005)), by which the quantum process fidelity and the entanglement capability can be estimated from the 32 measurement results of two classical truth tables, significantly less than the 256 measurement results required for full quantum tomography.

Okamoto, R; Takeuchi, S; Sasaki, K; Okamoto, Ryo; Hofmann, Holger F.; Takeuchi, Shigeki; Sasaki, Keiji

2005-01-01T23:59:59.000Z

271

Demonstration of an optical quantum controlled-NOT gate without path interference  

E-Print Network (OSTI)

We report the first experimental demonstration of an optical quantum controlled-NOT gate without any path interference, where the two interacting path interferometers of the original proposals (Phys. Rev. A {\\bf 66}, 024308 (2001), Phys. Rev. A {\\bf 65}, 012314 (2002)) have been replaced by three partially polarizing beam splitters with suitable polarization dependent transmittances and reflectances. The performance of the device is evaluated using a recently proposed method (Phys. Rev. Lett. {\\bf 94}, 160504 (2005)), by which the quantum process fidelity and the entanglement capability can be estimated from the 32 measurement results of two classical truth tables, significantly less than the 256 measurement results required for full quantum tomography.

Ryo Okamoto; Holger F. Hofmann; Shigeki Takeuchi; Keiji Sasaki

2005-06-30T23:59:59.000Z

272

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.  

NLE Websites -- All DOE Office Websites (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

273

Richard Gates  

Science Conference Proceedings (OSTI)

... NIST 1981 - 1987: Research Chemist, Tribochemistry Group, National Bureau of Standards 1978-1981: Chemist, Recycled Oil Program, National ...

2013-04-17T23:59:59.000Z

274

GATING CIRCUITS  

DOE Patents (OSTI)

Control circuits for vacuum tubes are described, and a binary counter having an improved trigger circuit is reported. The salient feature of the binary counter is the application of the input signal to the cathode of each of two vacuum tubes through separate capacitors and the connection of each cathode to ground through separate diodes. The control of the binary counter is achieved in this manner without special pulse shaping of the input signal. A further advantage of the circuit is the simplicity and minimum nuruber of components required, making its use particularly desirable in computer machines.

Merrill, L.C.

1958-10-14T23:59:59.000Z

275

Interactions of cyclic nucleotidegated channel subunits and protein tyrosine kinase probed with genistein  

E-Print Network (OSTI)

abstract The cGMP sensitivity of cyclic nucleotidegated (CNG) channels can be modulated by changes in phosphorylation catalyzed by protein tyrosine kinases (PTKs) and protein tyrosine phosphatases. Previously, we used genistein, a PTK inhibitor, to probe the interaction between PTKs and homomeric channels comprised of ? subunits (RET?) of rod photoreceptor CNG channels expressed in Xenopus oocytes. We showed that in addition to inhibiting phosphorylation, genistein triggers a noncatalytic interaction between PTKs and homomeric RET? channels that allosterically inhibits channel gating. Here, we show that native CNG channels from rods, cones, and olfactory receptor neurons also exhibit noncatalytic inhibition induced by genistein, suggesting that in each of these sensory cells, CNG channels are part of a regulatory complex that contains PTKs. Native CNG channels are heteromers, containing ? as well as ? subunits. To determine the contributions of ? and ? subunits to genistein inhibition, we compared the effect of genistein on native, homomeric (RET ? and OLF?), and heteromeric (RET???, OLF???, and OLF??RET?) CNG channels. We found that genistein only inhibits channels that contain either the RET ? or the OLF ? subunits. This finding, along with other observations about the maximal effect of genistein and the Hill coefficient of genistein inhibition, suggests that the RET ? and OLF ? subunits contain binding sites for the PTK, whereas RET ? and OLF ? subunits do not. key words: cyclic guanosine monophosphate protein tyrosine kinase photoreceptor olfactory receptor neuron

Elena Molokanova; Alexei Savchenko; Richard H. Kramer

2000-01-01T23:59:59.000Z

276

Effect of gate-driven spin resonance on the conductance of a one-dimensional quantum wire  

E-Print Network (OSTI)

We consider quasiballistic electron transmission in a one-dimensional quantum wire subject to both time-independent and periodic potentials of a finger gate that results in a coordinate- and time-dependent Rashba-type spin-orbit coupling. A spin-dependent conductance is calculated as a function of external constant magnetic field, the electric field frequency, and the potential strength. The results demonstrate the effect of the gate-driven electric dipole spin resonance in a transport phenomenon such as spin-flip electron transmission.

Almas F. Sadreev; E. Ya. Sherman

2013-10-10T23:59:59.000Z

277

Tuning the Gate Opening Pressure of Metal Organic Frameworks (MOFs) for the Selective Separation of Hydro-carbons  

E-Print Network (OSTI)

Separation of hydrocarbons is one of the most energy demanding processes. The need to develop materials for the selective adsorption of hydrocarbons, under reasonable conditions, is therefore of paramount importance. This work unveils unexpected hydrocarbon selectivity in a flexible Metal Organic Framework (MOF), based on differences in their gate opening pressure. We show selectivity dependence on both chain length and specific framework-gas interaction. Combining Raman spectroscopy and theoretical van der Waals Density Functional (vdW-DF) calculations, the separation mechanisms governing this unexpected gate opening behavior are revealed.

Nijem, Nour; Canepa, Pieremanuele; Marti, Anne; Balkus,, Kenneth J; Thonhauser, T; Li, Jing; Chabal, Yves J; 10.1021/ja305754f

2012-01-01T23:59:59.000Z

278

Project W-320, 241-C-106 sluicing: Piping calculations. Volume 4  

SciTech Connect

This supporting document has been prepared to make the FDNW calculations for Project W-320 readily retrievable. The objective of this calculation is to perform the structural analysis of the Pipe Supports designed for Slurry and Supernate transfer pipe lines in order to meet the requirements of applicable ASME codes. The pipe support design loads are obtained from the piping stress calculations W320-27-I-4 and W320-27-I-5. These loads are the total summation of the gravity, pressure, thermal and seismic loads. Since standard typical designs are used for each type of pipe support such as Y-Stop, Guide and Anchors, each type of support is evaluated for the maximum loads to which this type of supports are subjected. These loads are obtained from the AutoPipe analysis and used to check the structural adequacy of these supports.

Bailey, J.W.

1998-07-24T23:59:59.000Z

279

Project management plan for Project W-320, Tank 241-C-106 sluicing  

SciTech Connect

This Project Management Plan establishes the organization, plans, and systems for management of Project W-320 as defined in DOE Order 4700.1, Project Management System (DOE 1987).

Phillips, D.R.

1994-12-01T23:59:59.000Z

280

Project W-320, 241-C-106 sluicing civil/structural calculations, Volume 7  

SciTech Connect

The structural skid supporting the Process Building and equipment is designed based on the criteria, codes and standards, referenced in the calculation. The final members and the associated elements satisfy the design requirements of the structure. Revision 1 incorporates vendor data for the weight of the individual equipment components. The updated information does not affect the original conclusion of the calculation, since the overall effect is a reduction in the total weight of the equipment and a nominal relocation of the center of gravity for the skid assembly.

Bailey, J.W.

1998-07-24T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Project W-320, 241-C-106 sluicing HVAC calculations, Volume 1  

SciTech Connect

This supporting document has been prepared to make the FDNW calculations for Project W-320, readily retrievable. The report contains the following calculations: Exhaust airflow sizing for Tank 241-C-106; Equipment sizing and selection recirculation fan; Sizing high efficiency mist eliminator; Sizing electric heating coil; Equipment sizing and selection of recirculation condenser; Chiller skid system sizing and selection; High efficiency metal filter shielding input and flushing frequency; and Exhaust skid stack sizing and fan sizing.

Bailey, J.W.

1998-08-07T23:59:59.000Z

282

Geochemical Investigation of Pyrite Codisposal with Sluiced Fly Ash and Implications for Selecting Remedial Actions  

Science Conference Proceedings (OSTI)

Oxidation of pyrite results in acid generation as well as the release of sulfate, iron, and other metals to solution. When pyritic coal mill rejects are codisposed with coal ash, pyrite oxidation and the subsequent interaction of oxidation products with the ash primarily control leachate quality. The geochemistry of the pyrite/ash system has implications for management and remediation actions at codisposal facilities. Utilities can use the results of this research to make decisions regarding such facilit...

1995-08-08T23:59:59.000Z

283

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

284

Graduate Automotive Technology Education (GATE) Program: Center of Automotive Technology Excellence in Advanced Hybrid Vehicle Technology at West Virginia University  

DOE Green Energy (OSTI)

This report summarizes the technical and educational achievements of the Graduate Automotive Technology Education (GATE) Center at West Virginia University (WVU), which was created to emphasize Advanced Hybrid Vehicle Technology. The Center has supported the graduate studies of 17 students in the Department of Mechanical and Aerospace Engineering and the Lane Department of Computer Science and Electrical Engineering. These students have addressed topics such as hybrid modeling, construction of a hybrid sport utility vehicle (in conjunction with the FutureTruck program), a MEMS-based sensor, on-board data acquisition for hybrid design optimization, linear engine design and engine emissions. Courses have been developed in Hybrid Vehicle Design, Mobile Source Powerplants, Advanced Vehicle Propulsion, Power Electronics for Automotive Applications and Sensors for Automotive Applications, and have been responsible for 396 hours of graduate student coursework. The GATE program also enhanced the WVU participation in the U.S. Department of Energy Student Design Competitions, in particular FutureTruck and Challenge X. The GATE support for hybrid vehicle technology enhanced understanding of hybrid vehicle design and testing at WVU and encouraged the development of a research agenda in heavy-duty hybrid vehicles. As a result, WVU has now completed three programs in hybrid transit bus emissions characterization, and WVU faculty are leading the Transportation Research Board effort to define life cycle costs for hybrid transit buses. Research and enrollment records show that approximately 100 graduate students have benefited substantially from the hybrid vehicle GATE program at WVU.

Nigle N. Clark

2006-12-31T23:59:59.000Z

285

Influence of post deposition annealing on Y2O3-gated GaAs MOS capacitors and their reliability issues  

Science Conference Proceedings (OSTI)

The feasibility of employing yttrium oxide (Y"2O"3) as high-k gate dielectrics for GaAs metal-oxide-semiconductor (MOS) devices has been investigated. MOS capacitors were fabricated using RF-sputtered deposited Y"2O"3 films on NH"4OH treated n-GaAs substrate. ... Keywords: GaAs, TDDB, Trapping centroid, Y2O3

P. S. Das; A. Biswas

2011-03-01T23:59:59.000Z

286

Geyser-1: a MIPS R3000 CPU core with fine-grained run-time power gating  

Science Conference Proceedings (OSTI)

Geyser-1 is a MIPS CPU which provides a fine-grained run-time power gating (PG) controlled by instructions. Unlike traditional PGs, it uses special standard cells in which the virtual ground (VGND) is separated from the real ground, and a certain number ...

D. Ikebuchi; N. Seki; Y. Kojima; M. Kamata; L. Zhao; H. Amano; T. Shirai; S. Koyama; T. Hashida; Y. Umahashi; H. Masuda; K. Usami; S. Takeda; H. Nakamura; M. Namiki; M. Kondo

2010-01-01T23:59:59.000Z

287

Analysis of Schottky gate electron tunneling in polarization induced AlGaN/GaN high electron mobility transistors  

Science Conference Proceedings (OSTI)

( gate=nickel)/(barrier=GaN/Al (y) Ga (1?y) N)/(buffer=GaN)/(substrate=SiC ) polarizationinduced high electron mobility transistors (PI-HEMTs) show promise for ultrahigh power microwave amplification. The polarization fields in these Ga-face

Lester F. Eastman

1999-01-01T23:59:59.000Z

288

Analysis of the area-delay performance of hybrid nanoelectronic memory cores used in field programmable gate arrays  

Science Conference Proceedings (OSTI)

In this paper, an area-delay metric (AT) of hybrid memristive/CMOS memory architectures is discussed. The proposed memory circuit can be used as a lookup table in field programmable gate arrays (FPGAs) and is modeled by a passive nanoelectronic crossbar ... Keywords: electrochemical metallization, hybrid circuit, nanoelectronics, resistive switches, scaling

Qin Wang; Arne Heittmann; Tobias G. Noll

2013-05-01T23:59:59.000Z

289

Posters Single-Column Model and Cumulus Ensemble Model Simulations of GATE Data  

NLE Websites -- All DOE Office Websites (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

290

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

NLE Websites -- All DOE Office Websites (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

291

Individual Flip-Flops with Gated Clocks for Low Power Datapaths  

E-Print Network (OSTI)

Energy consumption has become one of the important factors in digital systems, because of the requirement to dissipate this energy in high-density circuits and to extend the battery life in portable systems such as devices with wireless communication capabilities. Flip-flops are one of the most energyconsuming components of digital circuits. This paper presents techniques to reduce energy consumption by individually deactivating the clock when flip-flops do not have to change their value. Flip-flop structures are proposed and selection criteria given to obtain minimum energy consumption. The structures have been evaluated using energy models and validated by switch-level simulations. For the applications considered, significant energy reductions are achieved. Index Terms---Flip-flop energy model, gated clocks, low power datapaths. I.

Tomas Lang Enric; Low Power Datapaths

1997-01-01T23:59:59.000Z

292

Ultrafast control of nuclear spins using only microwave pulses: towards switchable solid-state quantum gates  

E-Print Network (OSTI)

We demonstrate the control of the alpha-proton nuclear spin, I=1/2, coupled to the stable radical CH(COOH)2, S=1/2, in a gamma-irradiated malonic acid single crystal using only microwave pulses. We show that, depending on the state of the electron spin mS=+/-1/2, the nuclear spin can be locked in a desired state or oscillate between mI=+1/2 and mI=-1/2 on the nanosecond time scale. This approach provides a fast and efficient way of controlling nuclear spin qubits and also enables the design of switchable spin-based quantum gates by addressing only the electron spin.

George Mitrikas; Yiannis Sanakis; Georgios Papavassiliou

2009-10-02T23:59:59.000Z

293

A digital optical phase-locked loop for diode lasers based on field programmable gate array  

Science Conference Proceedings (OSTI)

We have designed and implemented a highly digital optical phase-locked loop (OPLL) for diode lasers in atom interferometry. The three parts of controlling circuit in this OPLL, including phase and frequency detector (PFD), loop filter and proportional integral derivative (PID) controller, are implemented in a single field programmable gate array chip. A structure type compatible with the model MAX9382/MCH12140 is chosen for PFD and pipeline and parallelism technology have been adapted in PID controller. Especially, high speed clock and twisted ring counter have been integrated in the most crucial part, the loop filter. This OPLL has the narrow beat note line width below 1 Hz, residual mean-square phase error of 0.14 rad{sup 2} and transition time of 100 {mu}s under 10 MHz frequency step. A main innovation of this design is the completely digitalization of the whole controlling circuit in OPLL for diode lasers.

Xu Zhouxiang; Zhang Xian; Huang Kaikai; Lu Xuanhui [Physics Department, Zhejiang University, Hangzhou, 310027 (China)

2012-09-15T23:59:59.000Z

294

A New Gated X-Ray Detector for the Orion Laser Facility  

Science Conference Proceedings (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

295

A Strained Organic Field-Effect-Transistor with a Gate-Tunable Superconducting Channel  

E-Print Network (OSTI)

In state-of-the-art silicon devices, mobility of the carrier is enhanced by the lattice strain from the back substrate. Such an extra control of device performance is significant in realizing high performance computing and should be valid for electric-field-induced superconducting devices, too. However, so far, the carrier density is the sole parameter for field-induced superconducting interfaces. Here we show an active organic superconducting field-effect-transistor whose lattice is modulated by the strain from the substrate. The soft organic lattice allows tuning of the strain by a choice of the back substrate to make an induced superconducting state accessible at low temperature with a paraelectric solid gate. An active three terminal Josephson junction device thus realized is useful both in advanced computing and in elucidating a direct connection between filling-controlled and bandwidth-controlled superconducting phases in correlated materials.

Hiroshi M. Yamamoto; Masaki Nakano; Masayuki Suda; Yoshihiro Iwasa; Masashi Kawasaki; Reizo Kato

2013-09-02T23:59:59.000Z

296

The accelerated site technology deployment program presents the segmented gate system  

Science Conference Proceedings (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

297

Enhancing the W State Quantum Network Fusion Process with A Single Fredkin Gate  

E-Print Network (OSTI)

Integrating a single Fredkin (controlled swap) gate to the previously introduced W state fusion mechanism (Ozdemir et al, N. J. Phys. 13, 103003, 2011) and using an ancillary photon, we increase the size of the fused W states and essentially, we improve the success probability of the fusion process in a promising way for a possible deterministic W state fusion mechanism. Besides fusing arbitrary size W states, our setup can also fuse Bell states to create W states with a success probability 3/4 which is much higher than the previous works. Therefore using only this setup, it is now possible to start with Bell pairs to create and expand arbitrary size W states. Since higher probability of success implies a lower cost of resource in terms of the number of the states spent to achieve a target size, our setup gives rise to more cost-efficient scenarios.

Sinan Bugu; Can Yesilyurt; Fatih Ozaydin

2013-03-16T23:59:59.000Z

298

Characterization of B2H6 Plasma Doping for Converted p+ Poly-Si Gate  

SciTech Connect

We have investigated the characteristics of B2H6 plasma doping (PLAD) process used to convert the n+ doped poly-Si gate to the p+ poly-Si gate for pMOS. The throughput of the PLAD process is much higher than a conventional beam line implantation process at low energy and high dose ranges. The B2H6 plasma counter-doping on the n+ poly-Si were performed in the energy range of 5kV {approx} 9kV and dose of {approx}E16 number sign /cm2. The B2H6 Plasma doped poly-Si layers were characterized by TDS, SIMS, AFM, and TEM.The TDS analysis showed hydrogen desorption from the B2H6 plasma doped p+ poly-Si layer at a low temperature. The surface concentration of PLAD doped boron was much higher compared to the conventional beam line implantation. However, a serious loss of surface dopant was also observed during photoresist strip and post cleaning. The surface dopant loss could be suppressed by 10% with optimization of the cleaning condition, leading to improve characteristics of PLAD doped p+ poly-Si pMOS, compared to the beam line implantation. Moreover, flat band voltage (VFB) shift was not observed in the C-V curves and there was no significant difference in I-V characteristics between PLAD and the conventional ion implantation. Deeper and higher dopant profile will be helpful to decrease required dose gap between PLAD and beam line implantation.

Oh, Jae-Geun; Lee, J. K.; Hwang, S. H.; Cho, H. J.; Sohn, Y. S.; Sheen, D. S.; Pyi, S. H. [Hynix Semiconductor Inc., San 136-1 Ami-ri, Bubal-eub, Ichon-si, Kyoungki-do, 467-701 (Korea, Republic of); Lee, S. W.; Hahn, S. H. [Varian Korea Ltd., 433-1 Mogok-dong Pyeongtaek-si Kyoungki-do 459-040 (Korea, Republic of); Jeon, Y. B.; Fang, Z.; Singh, V. [Varian Semiconductor Equipment Associates Incorporate, 35 Dory Road, Gloucester, MA 01930 (United States)

2006-11-13T23:59:59.000Z

299

High volume tidal or current flow harnessing system  

Science Conference Proceedings (OSTI)

Apparatus permitting the utilization of large volumes of water in the harnessing and extracting of a portion of the power generated by the rise and fall of ocean tides, ocean currents, or flowing rivers includes the provision of a dam, and a specialized single cavity chamber of limited size as compared with the water head enclosed by the dam, and an extremely high volume gating system in which all or nearly all of the water between the high and low levels on either side of the dam is cyclically gated through the single chamber from one side of the dam to the other so as to alternately provide positive air pressure and a partial vacuum within the single chamber. In one embodiment, the specialized chamber has a barrier at the bottom which divides the bottom of the chamber in half, large ports at the bottom of the chamber to permit inflow and outflow of high volumes of water, and ganged structures having a higher total area than that of corresponding ports, in which the structures form sluice gates to selectively seal off and open different sets of ports. In another embodiment, a single chamber is used without a barrier. In this embodiment, vertical sluice gates are used which may be activated automatically by pressures acting on the sluice gates as a result of ingested and expelled water.

Gorlov, A.M.

1984-08-07T23:59:59.000Z

300

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.  

NLE Websites -- All DOE Office Websites (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 "l-lake sluice gate" 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
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301

Comparison of dc performance of Pt/Ti/Au- and Ni/Au-Gated AlGaN/GaN High Electron Mobility Transistors  

Science Conference Proceedings (OSTI)

We have demonstrated significant improvements of AlGaN/GaN High Electron Mobility Transistors (HEMTs) dc performance by employing Pt/Ti/Au instead of the conventional Ni/Au gate metallization. During off-state bias stressing, the typical critical voltage for HEMTs with Ni/Au gate metallization was ~ -45 to -65V. By sharp contrast, no critical voltage was observed for HEMTs with Pt/Ti/Au gate metallization, even up to -100V, which was the instrumental limitation in this experiment. After the off-state stressing, the drain current of Ni/Au gated-HEMTs decreased by~ 15%. For the Pt-gate HEMTs, no degradation of the drain current occurred and there were minimal changes in the Schottky gate characteristics for both forward and reverse bias conditions. The HEMTs with Pt/Ti/Au metallization showed an excellent drain on/off current ratio of 1.5 108. The on/off drain current ratio of Ni-gated HEMTs was dependent on the drain bias voltage and ranged from 1.2 107 at Vds=5V and 6 105

Liu, L. [University of Florida, Gainesville; Lo, C. F. [University of Florida; Kang, Tsung Sheng [University of Florida, Gainesville; Pearton, S. J. [University of Florida; Kravchenko, Ivan I [ORNL; Laboutin, O. [Kopin Corporation, Taunton, MA; Johnson, Wayne J. [Kopin Corporation, Taunton, MA; Ren, F. [University of Florida

2011-01-01T23:59:59.000Z

302

Mechanism of inhibition of cyclic nucleotide-gated ion channels by diacylglycerol  

E-Print Network (OSTI)

abstract Cyclic nucleotidegated (CNG) channels are critical components in the visual and olfactory signal transduction pathways, and they primarily gate in response to changes in the cytoplasmic concentration of cyclic nucleotides. We previously found that the ability of the native rod CNG channel to be opened by cGMP was markedly inhibited by analogues of diacylglycerol (DAG) without a phosphorylation reaction (Gordon, S.E., J. Downing-Park, B. Tam, and A.L. Zimmerman. 1995. Biophys. J. 69:409417). Here, we have studied cloned bovine rod and rat olfactory CNG channels expressed in Xenopus oocytes, and have determined that they are differentially inhibited by DAG. At saturating [cGMP], DAG inhibition of homomultimeric ( ? subunit only) rod channels was similar to that of the native rod CNG channel, but DAG was much less effective at inhibiting the homomultimeric olfactory channel, producing only partial inhibition even at high [DAG]. However, at low open probability (P o), both channels were more sensitive to DAG, suggesting that DAG is a closed state inhibitor. The Hill coefficients for DAG inhibition were often greater than one, suggesting that more than one DAG molecule is required for effective inhibition of a channel. In single-channel recordings, DAG decreased the P o but not the single-channel conductance. Results with chimeras of rod and olfactory channels suggest that the differences in DAG inhibition correlate more with differences in the transmembrane segments and their attached loops than with differences in the amino and carboxyl termini. Our results are consistent with a model in which multiple DAG molecules stabilize the closed state(s) of a CNG channel by binding directly to the channel and/or by altering bilayerchannel interactions. We speculate that if DAG interacts directly with the channel, it may insert into a putative hydrophobic crevice among the transmembrane domains of each subunit or at the hydrophobic interface between the channel and the bilayer. key words: rod olfactory receptor channel modulation lipid bilayer tetracaine

Jennifer I. Crary; Dylan M. Dean; Wang Nguitragool; Peri T. Kurshan; Anita L. Zimmerman

2000-01-01T23:59:59.000Z

303

Quantum Mechanical Calculations of Charge Effects on gating the KcsA channel  

DOE Green Energy (OSTI)

The research described in this product was performed in part in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. A series of ab initio (density functional) calculations were carried out on side chains of a set of amino acids, plus water, from the (intracellular) gating region of the KcsA K+ channel. Their atomic coordinates, except hydrogen, are known from X-ray structures [D.A. Doyle, J.M. Cabral, R.A. Pfuetzner, A. Kuo, J.M. Gulbis, S.L. Cohen, B.T. Chait, R. MacKinnon, The structure of the potassium channel: molecular basis of K+ conduction and selectivity, Science 280 (1998) 6977; R. MacKinnon, S.L. Cohen, A. Kuo, A. Lee, B.T. Chait, Structural conservation in prokaryotic and eukaryotic potassium channels, Science 280 (1998) 106109; Y. Jiang, A. Lee, J. Chen, M. Cadene, B.T. Chait, R. MacKinnon, The open pore conformation of potassium channels. Nature 417 (2001) 523526], as are the coordinates of some water oxygen atoms. The 1k4c structure is used for the starting coordinates. Quantum mechanical optimization, in spite of the starting configuration, places the atoms in positions much closer to the 1j95, more tightly closed, configuration. This state shows four water molecules forming a basket under the Q119 side chains, blocking the channel. When a hydrated K+ approaches this basket, the optimized system shows a strong set of hydrogen bonds with the K+ at defined positions, preventing further approach of the K+ to the basket. This optimized structure with hydrated K+ added shows an ice-like 12 molecule nanocrystal of water. If the water molecules exchange, unless they do it as a group, the channel will remain blocked. The basket itself appears to be very stable, although it is possible that the K+ with its hydrating water molecules may be more mobile, capable of withdrawing from the gate. It is also not surprising that water essentially freezes, or forms a kind of glue, in a nanometer space; this agrees with experimental results on a rather different, but similarly sized (nm dimensions) system [K.B. Jinesh, J.W.M. Frenken, Capillary condensation in atomic scale friction: how water acts like a glue, Phys. Rev. Lett. 96 (2006) 166103/14].

Kariev, Alisher M.; Znamenskiy, Vasiliy S.; Green, Michael E.

2007-02-06T23:59:59.000Z

304

SU?E?J?152: Fluoroscopic Treatment Verification for Gated Stereotactic Body Radiation Therapy of a Tumor Located Near the Dome of the Liver: A  

Science Conference Proceedings (OSTI)

Purpose: To describe a method using pretreatment and intrafraction fluoroscopic verification of the gated treatment of a liver lesion located near the diaphragm. Methods: A 74?year?old female patient

2013-01-01T23:59:59.000Z

305

Comparison of Intake Gate Closure Methods At Lower Granite, Little Goose, Lower Monumental, And McNary Dams Using Risk-Based Analysis  

DOE Green Energy (OSTI)

The objective of this report is to compare the benefits and costs of modifications proposed for intake gate closure systems at four hydroelectric stations on the Lower Snake and Upper Columbia Rivers in the Walla Walla District that are unable to meet the COE 10-minute closure rule due to the installation of fish screens. The primary benefit of the proposed modifications is to reduce the risk of damage to the station and environs when emergency intake gate closure is required. Consequently, this report presents the results and methodology of an extensive risk analysis performed to assess the reliability of powerhouse systems and the costs and timing of potential damages resulting from events requiring emergency intake gate closure. As part of this analysis, the level of protection provided by the nitrogen emergency closure system was also evaluated. The nitrogen system was the basis for the original recommendation to partially disable the intake gate systems. The risk analysis quantifies this protection level.

Gore, Bryan F; Blackburn, Tye R; Heasler, Patrick G; Mara, Neil L

2001-01-19T23:59:59.000Z

306

(DOE/EIS-0128): Mitigation Action Plan for the Los Banos-Gates Transmission project 1/28/03  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Date: ____________________________ 1 Date: ____________________________ 1 Western Area Power Administration Mitigation Action Plan for the Los Banos - Gates (Path 15) Transmission Project 1.0 INTRODUCTION 1.1 HISTORY AND BACKGROUND In May 2001, Secretary of Energy Spencer Abraham directed the Western Area Power Administration (Western) to take the first steps, including the preparation of environmental studies, toward developing the Los Banos - Gates Transmission Project, also known as the Path 15 Project. This directive was issued to carry out a recommendation in the May 2001 National Energy Policy. Western is a Power Marketing Administration within the Department of Energy (DOE) whose role is to market and transmit electricity from multi- use water projects in the western United States, including California. The

307

Mitigation Action Plan for Los Banos - Gates (Path 15) Transmission Project (DOE/EIS-0128) (12/3/03)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2 Date: December 3, 2003 1 2 Date: December 3, 2003 1 Western Area Power Administration Mitigation Action Plan for the Los Banos - Gates (Path 15) Transmission Project 1.0 INTRODUCTION 1.1 HISTORY AND BACKGROUND In May 2001, Secretary of Energy Spencer Abraham directed the Western Area Power Administration (Western) to take the first steps, including the preparation of environmental studies, toward developing the Los Banos - Gates Transmission Project, also known as the Path 15 Project. This directive was issued to carry out a recommendation in the May 2001 National Energy Policy. Western is a power marketing administration within the Department of Energy (DOE) whose role is to market and transmit electricity from multi-use water projects in the western United States, including California. The Path 15 Project, located in California's western

308

Dilation x-ray imager a new/faster gated x-ray imager for the NIF  

SciTech Connect

As the yield on implosion shots increases it is expected that the peak x-ray emission reduces to a duration with a FWHM as short as 20 ps for {approx}7 Multiplication-Sign 10{sup 18} neutron yield. However, the temporal resolution of currently used gated x-ray imagers on the NIF is 40-100 ps. We discuss the benefits of the higher temporal resolution for the NIF and present performance measurements for dilation x-ray imager, which utilizes pulse-dilation technology [T. J. Hilsabeck et al., Rev. Sci. Instrum. 81, 10E317 (2010)] to achieve x-ray imaging with temporal gate times below 10 ps. The measurements were conducted using the COMET laser, which is part of the Jupiter Laser Facility at the Lawrence Livermore National Laboratory.

Nagel, S. R.; Bell, P. M.; Bradley, D. K.; Ayers, M. J.; Barrios, M. A.; Felker, B.; Smith, R. F.; Collins, G. W.; Jones, O. S.; Piston, K.; Raman, K. S. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); Hilsabeck, T. J.; Kilkenny, J. D.; Chung, T.; Sammuli, B. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States); Hares, J. D.; Dymoke-Bradshaw, A. K. L. [Kentech Instruments Ltd., Wallingford, Oxfordshire OX10 (United Kingdom)

2012-10-15T23:59:59.000Z

309

Deflection gating for time-resolved x-ray magnetic circular dichroism-photoemission electron microscopy using synchrotron radiation  

SciTech Connect

In this paper, we present a newly developed gating technique for a time-resolving photoemission microscope. The technique makes use of an electrostatic deflector within the microscope's electron optical system for fast switching between two electron-optical paths, one of which is used for imaging, while the other is blocked by an aperture stop. The system can be operated with a switching time of 20 ns and shows superior dark current rejection. We report on the application of this new gating technique to exploit the time structure in the injection bunch pattern of the synchrotron radiation source BESSY II at Helmholtz-Zentrum Berlin for time-resolved measurements in the picosecond regime.

Wiemann, C.; Kaiser, A. M.; Cramm, S. [Peter Gruenberg Institut PGI-6 'Electronic Properties', Research Centre Juelich, D-52425 Juelich (Germany); Schneider, C. M. [Peter Gruenberg Institut PGI-6 'Electronic Properties', Research Centre Juelich, D-52425 Juelich (Germany); Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, D-47048 Duisburg (Germany)

2012-06-15T23:59:59.000Z

310

SnO2-gated AlGaN/GaN high electron mobility transistors based oxygen sensors  

Science Conference Proceedings (OSTI)

Hydrothermally grown SnO2 was integrated with AlGaN/GaN high electron mobility transistor (HEMT) sensor as the gate electrode for oxygen detection. The crystalline of the SnO2 was improved after annealing at 400 C. The grain growth kinetics of the SnO2 nanomaterials, together with the O2 gas sensing properties and sensing mechanism of the SnO2 gated HEMT sensors were investigated. Detection of 1% oxygen in nitrogen at 100 C was possible. A low operation temperature and low power consumption oxygen sensor can be achieved by combining the SnO2 films with the AlGaN/GaN HEMT structure

Hung, S.T. [Feng Chia University, Taichung, Taiwan; Chung, Chi-Jung [Feng Chia University, Taichung, Taiwan; Chen, Chin Ching [University of Florida, Gainesville; Lo, C. F. [University of Florida; Ren, F. [University of Florida; Pearton, S. J. [University of Florida; Kravchenko, Ivan I [ORNL

2012-01-01T23:59:59.000Z

311

Impact of elliptical cross-section on the propagation delay of multi-channel gate-all-around MOSFET based inverters  

Science Conference Proceedings (OSTI)

Multi-channel (MC) gate-all-around (GAA) metal-oxide-semiconductor field-effect transistor (MOSFET) is one of the promising candidates for the next-generation high performance devices. However, due to fabrication imperfections the cross-section of GAA ... Keywords: Effective diameter, Gate-all-around (GAA), Metal-oxide-semiconductor field-effect transistor (MOSFET), Multi-channel, Propagation delay, Scaling

Subindu Kumar, Shankaranand Jha

2013-09-01T23:59:59.000Z

312

Interfacial transition regions at germanium/Hf oxide based dielectric interfaces: Qualitative differences between non-crystalline Hf Si oxynitride and nanocrystalline HfO2 gate stacks  

Science Conference Proceedings (OSTI)

The contribution from a relatively low-K SiON (K~6) interfacial transition region (ITR) between Si and transition metal high-K gate dielectrics such as nanocrystalline HfO"2 (K~20), and non-crystalline Hf Si oxynitride (K~10-12) places a significant ... Keywords: Di-vacancy defects, Ge substrates, High-K gate dielectrics, Interfacial transition regions, MOS devices, Native Ge dielectrics, Spectroscopic ellipsometry, X-ray absorption spectroscopy

G. Lucovsky; S. Lee; J. P. Long; H. Seo; J. Lning

2009-03-01T23:59:59.000Z

313

Recommended Approaches and Design Criteria for Application of Field Programmable Gate Arrays in Nuclear Power Plant Instrumentation and Control Systems  

Science Conference Proceedings (OSTI)

Field-programmable gate arrays (FPGAs) are gaining increased attention worldwide for application in nuclear power plant (NPP) instrumentation and control (IC) systems, particularly for safety applications. The use of FPGAs might reduce complexity and the associated burden of gaining regulatory approval and provide better protection against obsolescence compared to conventional microprocessor-based systems. This report provides guidelines and design criteria for application of FPGAs in NPP IC systems, add...

2011-06-16T23:59:59.000Z

314

Guidelines on the Use of Field Programmable Gate Arrays in Nuclear Power Plant I&C Systems  

Science Conference Proceedings (OSTI)

Field-programmable gate arrays (FPGAs) are gaining increased attention worldwide for application in nuclear plant instrumentation and control (I&C) systems, particularly for safety applications. Use of FPGAs has potential to reduce complexity and the associated burden of gaining regulatory approval and also provide better protection against obsolescence as compared to conventional microprocessor-based systems, which have been the technology of choice over the last two decades. This report provides inform...

2009-12-21T23:59:59.000Z

315

Evaluation of soft-core processors on a Xilinx Virtex-5 field programmable gate array.  

SciTech Connect

Node-based architecture (NBA) designs for future satellite projects hold the promise of decreasing system development time and costs, size, weight, and power and positioning the laboratory to address other emerging mission opportunities quickly. Reconfigurable field programmable gate array (FPGA)-based modules will comprise the core of several of the NBA nodes. Microprocessing capabilities will be necessary with varying degrees of mission-specific performance requirements on these nodes. To enable the flexibility of these reconfigurable nodes, it is advantageous to incorporate the microprocessor into the FPGA itself, either as a hard-core processor built into the FPGA or as a soft-core processor built out of FPGA elements. This document describes the evaluation of three reconfigurable FPGA-based soft-core processors for use in future NBA systems: the MicroBlaze (uB), the open-source Leon3, and the licensed Leon3. Two standard performance benchmark applications were developed for each processor. The first, Dhrystone, is a fixed-point operation metric. The second, Whetstone, is a floating-point operation metric. Several trials were run at varying code locations, loop counts, processor speeds, and cache configurations. FPGA resource utilization was recorded for each configuration.

Learn, Mark Walter

2011-04-01T23:59:59.000Z

316

Droplet minimizers for the Gates-Lebowitz-Penrose free energy functional  

E-Print Network (OSTI)

We study the structure of the constrained minimizers of the Gates-Lebowitz-Penrose free-energy functional ${\\mathcal F}_{\\rm GLP}(m)$, non-local functional of a density field $m(x)$, $x\\in {\\mathcal T}_L$, a $d$-dimensional torus of side length $L$. At low temperatures, ${\\mathcal F}_{\\rm GLP}$ is not convex, and has two distinct global minimizers, corresponding to two equilibrium states. Here we constrain the average density $L^{-d}\\int_{{\\cal T}_L}m(x)\\dd x$ to be a fixed value $n$ between the densities in the two equilibrium states, but close to the low density equilibrium value. In this case, a "droplet" of the high density phase may or may not form in a background of the low density phase, depending on the values $n$ and $L$. We determine the critical density for droplet formation, and the nature of the droplet, as a function of $n$ and $L$. The relation between the free energy and the large deviations functional for a particle model with long-range Kac potentials, proven in some cases, and expected to be true in general, then provides information on the structure of typical microscopic configurations of the Gibbs measure when the range of the Kac potential is large enough.

E. A. Carlen; M. C. Carvalho; R. Esposito; J. L. Lebowitz; R. Marra

2009-05-21T23:59:59.000Z

317

Gate-turn-off thyristors provide new level of power-flow control  

SciTech Connect

The availability of high-power, gate-turn-off (GTO) thyristors has made possible the development of a new class of solid-state devices that promise an unprecedented degree of control over the flow of power in the nation`s network. The first of these, a static compensator known as Statcom, which offers dynamic control over the flow of VArs into, or out of, the network, was unveiled last month at the Tennessee Valley Authority`s (TVA) Sullivan substation in eastern Tennessee. The principal element of the Statcom is a voltage-sourced inverter that converts dc voltage at its input terminals into a 3-phase alternating output voltage. To eliminate the quasi square wave that a single inverter would generate - along with unacceptable harmonics - the Statcom uses many such inverters, appropriately phase-shifted, and combines their outputs through electromagnetic linkages to produce a nearly sinusoidal output waveform. By numerous voltage additions and subtractions, eight inverters used in the Statcom generate a 48-pulse, nearly sinusoidal output waveform. The GTO-based inverters and electronic feedback control give the Statcom a dynamic performance far exceeding that of other reactive power compensators. In fact, the device can transition from full rated capacitive to full-rated VArs in approximately one-quarter cycle. Nominal rating of each inverter is 12.5 MVA. 12 figs.

NONE

1995-12-01T23:59:59.000Z

318

Retrofit of Tehran City Gate Station C.G.S. No. 2 by Using Turboexpander  

E-Print Network (OSTI)

Worldwide energy crisis makes it necessary to optimize consumption. One of the fundamental ways to reduce energy consumption is recovery from wasted energy. This can be applied in oil, gas and petrochemical industries in which large amounts of energy waste occur. We can refer to gas transportation when there is a pressure reduction at natural gas pressure reducing stations. In common classic methods, this reduction is accomplished through regulators or throttle valves which the great amount of energy existing in pipelines lost by them. In this paper, it has been suggested to use expansion turbine for achieving pressure reduction, as well as energy recovery goals. In this regard, Tehran City Gate Station No.2 which is one of the large natural gas pressure reducing stations in Iran (both from capacity and inlet pressure perspectives), has been selected as a case study. In first step waste of energy was calculated by using exergy analysis and in second step, by using expansion turbines that are used parallel in the station for achieving the goals of gas reduction pressure and power recovery was simulated in four scenarios by Thermoflow1 software. The results show undeniable fact that the Energy loss at this station has been 38,443,578 KWhr for a year. As a result of using turboexpander , the exergy recovery will be 96%. At the final step, one scenario was selected as the best which its period of payback was about 2 years.

Seresht, R. T.; Ja, H. K.

2010-01-01T23:59:59.000Z

319

Evaluation of the geometric accuracy of surrogate-based gated VMAT using intrafraction kilovoltage x-ray images  

SciTech Connect

Purpose: To evaluate the geometric accuracy of beam targeting in external surrogate-based gated volumetric modulated arc therapy (VMAT) using kilovoltage (kV) x-ray images acquired during dose delivery. Methods: Gated VMAT treatments were delivered using a Varian TrueBeam STx Linac for both physical phantoms and patients. Multiple gold fiducial markers were implanted near the target. The reference position was created for each implanted marker, representing its correct position at the gating threshold. The gating signal was generated from the RPM system. During the treatment, kV images were acquired immediately before MV beam-on at every breathing cycle, using the on-board imaging system. All implanted markers were detected and their 3D positions were estimated using in-house developed software. The positioning error of a marker is defined as the distance of the marker from its reference position for each frame of the images. The overall error of the system is defined as the average over all markers. For the phantom study, both sinusoidal motion (1D and 3D) and real human respiratory motion was simulated for the target and surrogate. In the baseline case, the two motions were synchronized for the first treatment fraction. To assess the effects of surrogate-target correlation on the geometric accuracy, a phase shift of 5% and 10% between the two motions was introduced. For the patient study, intrafraction kV images of five stereotactic body radiotherapy (SBRT) patients were acquired for one or two fractions. Results: For the phantom study, a high geometric accuracy was achieved in the baseline case (average error: 0.8 mm in the superior-inferior or SI direction). However, the treatment delivery is prone to geometric errors if changes in the target-surrogate relation occur during the treatment: the average error was increased to 2.3 and 4.7 mm for the phase shift of 5% and 10%, respectively. Results obtained with real human respiratory curves show a similar trend. For a target with 3D motion, the technique is able to detect geometric errors in the left-right (LR) and anterior-posterior (AP) directions. For the patient study, the average intrafraction positioning errors are 0.8, 0.9, and 1.4 mm and 95th percentile errors are 1.7, 2.1, and 2.7 mm in the LR, AP, and SI directions, respectively. Conclusions: The correlation between external surrogate and internal target motion is crucial to ensure the geometric accuracy of surrogate-based gating. Real-time guidance based on kV x-ray images overcomes the potential issues in surrogate-based gating and can achieve accurate beam targeting in gated VMAT.

Li Ruijiang; Mok, Edward; Han, Bin; Koong, Albert; Xing Lei [Department of Radiation Oncology, Stanford University, Stanford, California 94305-5847 (United States)

2012-05-15T23:59:59.000Z

320

Graduate Automotive Technology Education (GATE) Center for Hybrid Electric Drivetrains and Control Strategies  

DOE Green Energy (OSTI)

Beginning the fall semester of 1999, The University of Maryland, Departments of Mechanical and Electrical Engineering and the Institute for Systems Research served as a U.S. Department of Energy (USDOE) Graduate Automotive Technology Education (GATE) Center for Hybrid Electric Drivetrains and Control Strategies. A key goal was to produce a graduate level education program that educated and prepared students to address the technical challenges of designing and developing hybrid electric vehicles, as they progressed into the workforce. A second goal was to produce research that fostered the advancement of hybrid electric vehicles, their controls, and other related automotive technologies. Participation ended at the University of Maryland after the 2004 fall semester. Four graduate courses were developed and taught during the course of this time, two of which evolved into annually-taught undergraduate courses, namely Vehicle Dynamics and Control Systems Laboratory. Five faculty members from Mechanical Engineering, Electrical Engineering, and the Institute for Systems Research participated. Four Ph.D. degrees (two directly supported and two indirectly supported) and seven Master's degrees in Mechanical Engineering resulted from the research conducted. Research topics included thermoelectric waste heat recovery, fuel cell modeling, pre- and post-transmission hybrid powertrain control and integration, hybrid transmission design, H{sub 2}-doped combustion, and vehicle dynamics. Many of the participating students accepted positions in the automotive industry or government laboratories involved in automotive technology work after graduation. This report discusses the participating faculty, the courses developed and taught, research conducted, the students directly and indirectly supported, and the publication list. Based on this collection of information, the University of Maryland firmly believes that the key goal of the program was met and that the majority of the participating students are now contributing to the advancement of automotive technology in this country.

David Holloway

2005-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Molecular cloning and functional characterization of a new modulatory cyclic nucleotide-gated channel subunit from mouse retina  

E-Print Network (OSTI)

Cyclic nucleotide-gated (CNG) channels play a key role in olfactory and visual transduction. Native CNG channels are heteromeric complexes consisting of the principal ? subunits (CNG13), which can form functional channels by themselves, and the modulatory ? subunits (CNG45). The individual ? and ? subunits that combine to form the CNG channels in rod photoreceptors (CNG1 ? CNG4) and olfactory neurons (CNG2 ? CNG4 ? CNG5) have been characterized. In contrast, only an ? subunit (CNG3) has been identified so far in cone photoreceptors. Here we report the molecular cloning of a new CNG channel subunit (CNG6) from mouse retina. The cDNA of CNG6 encodes a peptide of 694 amino acids with a predicted molecular weight of 80 kDa. Among the CNG channel subunits, CNG6 has the highest overall similarity to the CNG4 ? subunit (47% sequence identity). CNG6 transcripts are present in a small subset of retinal photoreceptor cells and also in testis. Heterologous expression of CNG6 in human embryonic kidney 293 cells did not lead to detectable currents. However, when coexpressed with the cone photoreceptor ? subunit, CNG6 induced a flickering channel gating, weakened the outward rectification in the presence of extracellular Ca 2 ? , increased the sensitivity for L-cis diltiazem, and enhanced the cAMP efficacy of the channel. Taken together, the data indicate that CNG6 represents a new CNG channel ? subunit that may associate with the CNG3 ? subunit to form the native cone channel. Key words: cone photoreceptor; cyclic nucleotide; cation channel; L-cis diltiazem; single-channel recording Cyclic nucleotide-gated (CNG) channels are expressed in various cell types and tissues. Although the functional significance of CNG channel expression in most nonsensory tissues is still unclear, the role of the channels in signal transduction pathways of vertebrate sensory neurons has been well defined (Baylor, 1996;

Andrea Gerstner; Xiangang Zong; Franz Hofmann; Martin Biel

2000-01-01T23:59:59.000Z

322

A monitor and control system for high voltage, gating, and triggering of a scintillating fiber active target  

SciTech Connect

A monitor and control system has been designed, constructed and tested at Notre Dame for the purpose of controlling all aspects of a Scintillating Fiber Acxtive Target system used in High Energy Physics Experimentation. The SFT Active Target system requires control of high voltages, gating, trigger counters, and monitoring. In addition, it resides in a radioactive area with very limited access. The control system uses a Leading Edge microcomputer, two specialized Z80-based processors, associated DACs, ADCs, discrete semiconductors, linear ICs and TTL and MECL logic. All of the hardware and software is custom-built; its design and performance is discussed.

Baumbaugh, B.; Bishop, J.; Gardner, R.W.; Mountain, R.J.; Ruchti, R.; Baumbaugh, A.; Knickerbocker, K.

1988-02-01T23:59:59.000Z

323

A monitor and control system for high voltage, gating, and triggering of a scintillating fiber active target  

SciTech Connect

A monitor and control system has been designed, constructed and tested at Notre Dame for the purpose of controlling all aspects of a Scintillating Fiber Active Target system used in High Energy Physics Experimentation. The SFT Active Target system requires control of high voltages, gating, trigger counters, and monitoring. In addition, it resides in a radioactive area with very limited access. The control system uses a Leading Edge microcomputer, two specialized Z80-based processors, associated DACs, ADCs, discrete semiconductors, linear ICs, and TTL and MECL logic. All of the hardware and software is custom-built; its design and performance is discussed. 5 refs., 4 figs.

Baumbaugh, B.; Bishop, J.; Gardner, R.W.; Mountain, R.J.; Ruchti, R.; Baumbaugh, A.; Knickerbocker, K.

1987-10-01T23:59:59.000Z

324

Universal and deterministic manipulation of the quantum state of harmonic oscillators: a route to unitary gates for Fock State qubits  

E-Print Network (OSTI)

We present a simple quantum circuit that allows for the universal and deterministic manipulation of the quantum state of confined harmonic oscillators. The scheme is based on the selective interactions of the referred oscillator with an auxiliary three-level system and a classical external driving source, and enables any unitary operations on Fock states, two-by-two. One circuit is equivalent to a single qubit unitary logical gate on Fock states qubits. Sequences of similar protocols allow for complete, deterministic and state-independent manipulation of the harmonic oscillator quantum state.

Marcelo Franca Santos

2004-11-10T23:59:59.000Z

325

The Golden Gate Textile Barrier: Preserving California Bay of San Francisco from a Rising North Pacific Ocean  

E-Print Network (OSTI)

Climate change in California may require construction of a barrier separating the Pacific Ocean from San Francisco Bay and the Sacramento River-San Joaquin River Delta simply because Southern California is remarkably dependent on freshwater exported from the Delta. We offer a new kind of salt barrier, a macroproject built of impermeable textile materials stretched across the Golden Gate beneath the famous bridge. We anticipate it might eventually substitute for a recently proposed San Francisco In-Stream Tidal Power Plant harnessing a 1.7 m tide at the Bay entrance if future climate conditions Statewide is conducive. First-glance physics underpin our macroproject.

Richart B. Cathcart; Alexander A. Bolonkin

2007-02-04T23:59:59.000Z

326

Technical Feasibility Assessment of LED Roadway Lighting on the Golden Gate Bridge  

Science Conference Proceedings (OSTI)

Subsequent to preliminary investigations by the Golden Gate Bridge Highway & Transportation District (GGB), in coordination with Pacific Gas & Electric (PG&E), the GATEWAY Demonstration program was asked to evaluate the technical feasibility of replacing existing roadway lighting on the bridge with products utilizing LED technology. GGB and PG&E also indicated interest in induction (i.e., electrodeless fluorescent) technology, since both light source types feature rated lifetimes significantly exceeding those of the existing high-pressure sodium (HPS) and low-pressure sodium (LPS) products. The goal of the study was to identify any solutions which would reduce energy use and maintenance without compromising the quantity or quality of existing illumination. Products used for roadway lighting on the historic bridge must be installed within the existing amber-lensed shoebox-style luminaire housings. It was determined that induction technology does not appear to represent a viable alternative for the roadway luminaires in this application; any energy savings would be attributable to a reduction in light levels. Although no suitable LED retrofit kits were identified for installation within existing luminaire housings, several complete LED luminaires were found to offer energy savings of 6-18%, suggesting custom LED retrofit kits could be developed to match or exceed the performance of the existing shoeboxes. Luminaires utilizing ceramic metal halide (CMH) were also evaluated, and some were found to offer 28% energy savings, but these products might actually increase maintenance due to the shorter rated lamp life. Plasma technology was evaluated, as well, but no suitable products were identified. Analysis provided in this report was completed in May 2012. Although LED technologies are expected to become increasingly viable over time, and product mock-ups may reveal near-term solutions, some options not currently considered by GGB may ultimately merit evaluation. For example, it would be preferable in terms of performance to simply replace existing luminaires (some of which may already be nearing end of life) with fully-integrated LED or CMH luminaires rather than replacing internal components. Among other benefits, this would allow reputable manufacturers to offer standard warranties for their products. Similarly, the amber lenses might be reformulated such that they do not render white light sources in a greenish cast, thereby allowing the use of off-the-shelf LED or CMH products. Last, it should be noted that the existing amber-lensed shoeboxes bear no daytime resemblance to the LPS luminaires originally used to light the roadway.

Tuenge, Jason R.

2012-09-01T23:59:59.000Z

327

A study on the gate voltage dependence of the activation energy in Meyer-Neldel rule for charge mobility in pentacene OTFTs  

SciTech Connect

A temperature analysis of the OTFT having pentacene as channel semiconductor and PMMA as gate dielectric has been performed. The experimental results have been studied by extracting the field-effect mobility of the TFTs and relating it to the sample's temperature. We have found the mobility to follow the Meyer-Neldel rule. This behavior can be considered imputable to the channel carrier hopping. The gate voltage effect on the thermal activation energy for the mobility and the asymptotic parameter has been also taken into account.

Petrosino, Mario; Rubino, Alfredo [University of Salerno, Department of Information and Electrical Engineering, via Ponte Don Melillo 1, 84084 Fisciano (Italy); Miscioscia, Riccardo [University of Salerno, Department of Information and Electrical Engineering, via Ponte Don Melillo 1, 84084 Fisciano (Italy)] [Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Portici Research Centre, p.le E. Fermi 1, 80055 Portici (Italy); Girolamo del Mauro, Anna de; Rega, Romina; Cerri, Valerio; Minarini, Carla [Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Portici Research Centre, p.le E. Fermi 1, 80055 Portici (Italy)

2010-06-02T23:59:59.000Z

328

Gate-Recessed InAlN/GaN HEMTs on SiC Substrate With Al[subscript 2]O[subscript 3] Passivation  

E-Print Network (OSTI)

We studied submicrometer (L[subscript G] = 0.15-0.25 ¿m) gate-recessed InAlN/AlN/GaN high-electron mobility transistors (HEMTs) on SiC substrates with 25-nm Al[subscript 2]O[subscript 3] passivation. The combination of ...

Guo, Shiping

329

Semi-analytical modeling of Ag and Au nanoparticles and fullerene (C60) embedded gate oxide compound semiconductor MOSFET memory devices  

Science Conference Proceedings (OSTI)

In this paper we present an analytical simulation study of Non-volatile MOSFET memory devices with Ag/Au nanoparticles/fullerene (C60) embedded gate dielectric stacks. We considered a long channel planar MOSFET, having a multilayer SiO2---HfO2 ... Keywords: Ag nanocrystal, Au nanocrystal, C60, Long channel MOSFET, Non-volatile memory

Amretashis Sengupta; Chandan Kumar Sarkar; Felix G. Requejo

2012-12-01T23:59:59.000Z

330

HDL (hardware description language) and FPGA (field-programmable gate array) devices allow designers to quickly develop and simulate a sophisticated digital circuit, realize it  

E-Print Network (OSTI)

PREFACE HDL (hardware description language) and FPGA (field-programmable gate array) devices allow device, and verify operation of the physical implementation. As these technologies mature, they have a complex and sophisticated digital system. This book uses a "learning by doing" approach and illustrates

Chu, Pong P.

331

A dose point kernel database using GATE Monte Carlo simulation toolkit for nuclear medicine applications: Comparison with other Monte Carlo codes  

Science Conference Proceedings (OSTI)

Purpose: GATE is a Monte Carlo simulation toolkit based on the Geant4 package, widely used for many medical physics applications, including SPECT and PET image simulation and more recently CT image simulation and patient dosimetry. The purpose of the current study was to calculate dose point kernels (DPKs) using GATE, compare them against reference data, and finally produce a complete dataset of the total DPKs for the most commonly used radionuclides in nuclear medicine. Methods: Patient-specific absorbed dose calculations can be carried out using Monte Carlo simulations. The latest version of GATE extends its applications to Radiotherapy and Dosimetry. Comparison of the proposed method for the generation of DPKs was performed for (a) monoenergetic electron sources, with energies ranging from 10 keV to 10 MeV, (b) beta emitting isotopes, e.g., {sup 177}Lu, {sup 90}Y, and {sup 32}P, and (c) gamma emitting isotopes, e.g., {sup 111}In, {sup 131}I, {sup 125}I, and {sup 99m}Tc. Point isotropic sources were simulated at the center of a sphere phantom, and the absorbed dose was stored in concentric spherical shells around the source. Evaluation was performed with already published studies for different Monte Carlo codes namely MCNP, EGS, FLUKA, ETRAN, GEPTS, and PENELOPE. A complete dataset of total DPKs was generated for water (equivalent to soft tissue), bone, and lung. This dataset takes into account all the major components of radiation interactions for the selected isotopes, including the absorbed dose from emitted electrons, photons, and all secondary particles generated from the electromagnetic interactions. Results: GATE comparison provided reliable results in all cases (monoenergetic electrons, beta emitting isotopes, and photon emitting isotopes). The observed differences between GATE and other codes are less than 10% and comparable to the discrepancies observed among other packages. The produced DPKs are in very good agreement with the already published data, which allowed us to produce a unique DPKs dataset using GATE. The dataset contains the total DPKs for {sup 67}Ga, {sup 68}Ga, {sup 90}Y, {sup 99m}Tc, {sup 111}In, {sup 123}I, {sup 124}I, {sup 125}I, {sup 131}I, {sup 153}Sm, {sup 177}Lu {sup 186}Re, and {sup 188}Re generated in water, bone, and lung. Conclusions: In this study, the authors have checked GATE's reliability for absorbed dose calculation when transporting different kind of particles, which indicates its robustness for dosimetry applications. A novel dataset of DPKs is provided, which can be applied in patient-specific dosimetry using analytical point kernel convolution algorithms.

Papadimitroulas, Panagiotis; Loudos, George; Nikiforidis, George C.; Kagadis, George C. [Department of Medical Physics, School of Medicine, University of Patras, Rion, GR 265 04 (Greece) and Department of Medical Instruments Technology, Technological Educational institute of Athens, Ag. Spyridonos Street, Egaleo GR 122 10, Athens (Greece); Department of Medical Instruments Technology, Technological Educational institute of Athens, Ag. Spyridonos Street, Egaleo GR 122 10, Athens (Greece); Department of Medical Physics, School of Medicine, University of Patras, Rion, GR 265 04 (Greece)

2012-08-15T23:59:59.000Z

332

Activity-dependent modulation of rod photoreceptor cyclic nucleotide-gated channels mediated by phosphorylation of a specific tyrosine residue  

E-Print Network (OSTI)

Cyclic nucleotide-gated (CNG) channels in vertebrate photoreceptors are crucial for transducing light-induced changes in cGMP concentration into electrical signals. In this study, we show that both native and exogenously expressed CNG channels from rods are modulated by tyrosine phosphorylation. The cGMP sensitivity of CNG channels, composed of rod ?-subunits expressed in Xenopus oocytes, gradually increases after excision of inside-out patches from the oocyte membrane. This increase in sensitivity is inhibited by a protein tyrosine phosphatase (PTP) inhibitor and is unaffected by three different Ser/Thr phosphatase inhibitors. Moreover, it is suppressed or reversed by application of ATP but not by a nonhydrolyzable ATP analog. Application of protein tyrosine kinase (PTK) inhibitors causes an increase in cGMP sensitivity, but only in the presence of ATP. Taken together, these results suggest that

Elena Molokanova; Bhavya Trivedi; Alexei Savchenko; Richard H. Kramer

1999-01-01T23:59:59.000Z

333

Carrier mobility measurement across a single grain boundary in polycrystalline silicon using an organic gate thin-film transistor  

Science Conference Proceedings (OSTI)

In this study, we developed a measurement method for field-effect-carrier mobility across a single grain boundary in polycrystalline Si (poly Si) used for solar cell production by using an organic gate field-effect transistor (FET). To prevent precipitation and the diffusion of impurities affecting the electronic characteristics of the grain boundary, all the processing temperatures during FET fabrication were held below 150 deg. C. From the grain boundary, the field-effect mobility was measured at around 21.4 cm{sup 2}/Vs at 297 K, and the temperature dependence of the field-effect mobility suggested the presence of a potential barrier of 0.22 eV at the boundary. The technique presented here is applicable for the monitoring of carrier conduction characteristics at the grain boundary in poly Si used for the production of solar cells.

Hashimoto, Masaki; Kanomata, Kensaku; Momiyama, Katsuaki; Kubota, Shigeru; Hirose, Fumihiko

2012-01-09T23:59:59.000Z

334

A field programmable gate array unit for the diagnosis and control of neoclassical tearing modes on MAST  

Science Conference Proceedings (OSTI)

A real-time system has been developed to trigger both the MAST Thomson scattering (TS) system and the plasma control system on the phase and amplitude of neoclassical tearing modes (NTMs), extending the capabilities of the original system. This triggering system determines the phase and amplitude of a given NTM using magnetic coils at different toroidal locations. Real-time processing of the raw magnetic data occurs on a low cost field programmable gate array (FPGA) based unit which permits triggering of the TS lasers on specific amplitudes and phases of NTM evolution. The MAST plasma control system can receive a separate trigger from the FPGA unit that initiates a vertical shift of the MAST magnetic axis. Such shifts have fully removed m/n= 2/1 NTMs instabilities on a number of MAST discharges.

O'Gorman, T.; Gibson, K. J.; Snape, J. A. [York Plasma Institute, Department of Physics, University of York, York YO10 5DD (United Kingdom); Naylor, G.; Huang, B.; McArdle, G. J.; Scannell, R.; Shibaev, S.; Thomas-Davies, N. [EURATOM/CCFE Fusion Association, Culham Science Centre, Oxfordshire OX14 3DB (United Kingdom)

2012-10-15T23:59:59.000Z

335

Record of Decision for the Los Banos-Gates Transmission Project (DOE/EIS-0128-SA-01)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

99 99 Federal Register / Vol. 66, No. 245 / Thursday, December 20, 2001 / Notices A copy of any motion to intervene must also be served upon the representative of the RAWA specified in item h, above. p. Agency Comments-Federal, state, and local agencies are invited to file comments on the subject application for surrender of exemption. If an agency does not file comments within the time specified for filing comments, it will be presumed to have no comments. One copy of an agency's comments must also be sent to the Applicant's representative listed in item h, above. Linwood A. Watson, Jr., Acting Secretary. [FR Doc. 01-31311 Filed 12-19-01; 8:45 am] BILLING CODE 6717-01-P DEPARTMENT OF ENERGY Western Area Power Administration Los Banos-Gates Transmission Project AGENCY: Western Area Power

336

Block of voltage-gated potassium channels by Pacific ciguatoxin-1 contributes to increased neuronal excitability in rat sensory neurons  

SciTech Connect

The present study investigated the actions of the polyether marine toxin Pacific ciguatoxin-1 (P-CTX-1) on neuronal excitability in rat dorsal root ganglion (DRG) neurons using patch-clamp recording techniques. Under current-clamp conditions, bath application of 2-20 nM P-CTX-1 caused a rapid, concentration-dependent depolarization of the resting membrane potential in neurons expressing tetrodotoxin (TTX)-sensitive voltage-gated sodium (Na{sub v}) channels. This action was completely suppressed by the addition of 200 nM TTX to the external solution, indicating that this effect was mediated through TTX-sensitive Na{sub v} channels. In addition, P-CTX-1 also prolonged action potential and afterhyperpolarization (AHP) duration. In a subpopulation of neurons, P-CTX-1 also produced tonic action potential firing, an effect that was not accompanied by significant oscillation of the resting membrane potential. Conversely, in neurons expressing TTX-resistant Na{sub v} currents, P-CTX-1 failed to alter any parameter of neuronal excitability examined in this study. Under voltage-clamp conditions in rat DRG neurons, P-CTX-1 inhibited both delayed-rectifier and 'A-type' potassium currents in a dose-dependent manner, actions that occurred in the absence of alterations to the voltage dependence of activation. These actions appear to underlie the prolongation of the action potential and AHP, and contribute to repetitive firing. These data indicate that a block of potassium channels contributes to the increase in neuronal excitability, associated with a modulation of Na{sub v} channel gating, observed clinically in response to ciguatera poisoning.

Birinyi-Strachan, Liesl C. [Neurotoxin Research Group, Department of Health Sciences, University of Technology, Sydney, Broadway NSW (Australia); Gunning, Simon J. [Neurotoxin Research Group, Department of Health Sciences, University of Technology, Sydney, Broadway NSW (Australia); Lewis, Richard J. [Institute for Molecular Bioscience, University of Queensland, Brisbane QLD (Australia); Nicholson, Graham M. [Neurotoxin Research Group, Department of Health Sciences, University of Technology, Sydney, Broadway NSW (Australia)]. E-mail: Graham.Nicholson@uts.edu.au

2005-04-15T23:59:59.000Z

337

Development and Deployment of the Extended Reach Sluicing System (ERSS) for Retrieval of Hanford Single Shell Tank Waste - 14206 (DRAFT)  

SciTech Connect

A history of the evolution and the design development of Extended Reach Sluicer System (ERSS) is presented. Several challenges are described that had to be overcome to create a machine that went beyond the capabilities of prior generation sluicers to mobilize waste in Single Shell Tanks for pumping into Double Shell Tank receiver tanks. Off-the-shelf technology and traditional hydraulic fluid power systems were combined with the custom-engineered components to create the additional functionality of the ERSS, while still enabling it to fit within very tight entry envelope into the SST. Problems and challenges inevitably were encountered and overcome in ways that enhance the state of the art of fluid power applications in such constrained environments. Future enhancements to the ERSS design are explored for retrieval of tanks with different dimensions and internal obstacles.

Bauer, Roger E.; Figley, Reed R.; Innes, A. G.

2013-11-11T23:59:59.000Z

338

Electrical and structural properties of high-k Er-silicate gate dielectric formed by interfacial reaction between Er and SiO{sub 2} films  

SciTech Connect

The authors investigate the electrical and structural properties of high-k Er-silicate film formed by the interfacial reaction between Er and SiO{sub 2} films. The increase in rapid thermal annealing temperature leads to the reduction of the interface trap density by one order of magnitude, indicating the improvement in the interface quality of Er-silicate gate dielectric. The increased capacitance value of Er-silicate gate dielectric with thermal treatment is attributed in part to the reduction of SiO{sub 2} thickness and to the increase in the relative dielectric constant of Er-silicate film caused by the chemical bonding change from Si-rich to Er-rich silicate.

Choi, Chel-Jong; Jang, Moon-Gyu; Kim, Yark-Yeon; Jun, Myung-Sim; Kim, Tae-Youb; Song, Myeong-Ho [IT Convergence Technology Research Division, Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700 (Korea, Republic of); National Nanofab Center, Daejeon 305-806 (Korea, Republic of)

2007-07-02T23:59:59.000Z

339

Valve Application, Maintenance, and Repair Guide: In Situ State-of-the-Art Valve Welding Repair (Gate, Globe, & Check Valves), Volum e 2  

Science Conference Proceedings (OSTI)

The Valve Application, Maintenance and Repair Guide is a three volume series that provides a generic overview of valve application selection, maintenance, and repair. Volume 2 of this series is a comprehensive guide for in situ weld repair of gate, globe, and check valve components such as bodies, bonnets, discs, and seats. The information in this guide, though directed toward nuclear plant personnel, will assist all power plant engineers, planners, and maintenance personnel responsible for valve mainten...

1996-12-31T23:59:59.000Z

340

9/18/09 2:23 PMThank you for using E-Gate Page 1 of 2http://www.alphatrade.com/ads/GWND/thanks.html  

E-Print Network (OSTI)

on imports to meet its growing petroleum needs. In 2005, over 65 percent of U.S. crude oil and petroleum point in determining its energy future. One path will lead to continued dependence on foreign oil this ad contact us|investor|home Search: Go #12;9/18/09 2:23 PMThank you for using E-Gate Page 2 of 2http

Temple, Blake

Note: This page contains sample records for the topic "l-lake sluice gate" from the National Library of EnergyBeta (NLEBeta).
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341

Prospective-gated cardiac micro-CT imaging of free-breathing mice using carbon nanotube field emission x-ray  

Science Conference Proceedings (OSTI)

Purpose: Carbon nanotube (CNT) based field emission x-ray source technology has recently been investigated for diagnostic imaging applications because of its attractive characteristics including electronic programmability, fast switching, distributed source, and multiplexing. The purpose of this article is to demonstrate the potential of this technology for high-resolution prospective-gated cardiac micro-CT imaging. Methods: A dynamic cone-beam micro-CT scanner was constructed using a rotating gantry, a stationary mouse bed, a flat-panel detector, and a sealed CNT based microfocus x-ray source. The compact single-beam CNT x-ray source was operated at 50 KVp and 2 mA anode current with 100 {mu}mx100 {mu}m effective focal spot size. Using an intravenously administered iodinated blood-pool contrast agent, prospective cardiac and respiratory-gated micro-CT images of beating mouse hearts were obtained from ten anesthetized free-breathing mice in their natural position. Four-dimensional cardiac images were also obtained by gating the image acquisition to different phases in the cardiac cycle. Results: High-resolution CT images of beating mouse hearts were obtained at 15 ms temporal resolution and 6.2 lp/mm spatial resolution at 10% of system MTF. The images were reconstructed at 76 {mu}m isotropic voxel size. The data acquisition time for two cardiac phases was 44{+-}9 min. The CT values observed within the ventricles and the ventricle wall were 455{+-}49 and 120{+-}48 HU, respectively. The entrance dose for the acquisition of a single phase of the cardiac cycle was 0.10 Gy. Conclusions: A high-resolution dynamic micro-CT scanner was developed from a compact CNT microfocus x-ray source and its feasibility for prospective-gated cardiac micro-CT imaging of free-breathing mice under their natural position was demonstrated.

Cao Guohua; Burk, Laurel M.; Lee, Yueh Z.; Calderon-Colon, Xiomara; Sultana, Shabana; Lu Jianping; Zhou, Otto [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 and Department of Radiology, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States) and Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States) and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2010-10-15T23:59:59.000Z

342

Accelerated Publication: Ge metal-oxide-semiconductor devices with Al2O3/Ga2O3(Gd2O3) as gate dielectric  

Science Conference Proceedings (OSTI)

Ga"2O"3(Gd"2O"3) [GGO] 3.5nm-thick, with an in situ Al"2O"3 cap 1.5nm thick, has been directly deposited on Ge substrate without employing interfacial passivation layers. The equivalent oxide thickness (EOT) of the gate stack is 1.38-nm. The metal-oxide-semiconductor ... Keywords: EOT, Germanium, High-? dielectric, MOS

L. K. Chu; T. H. Chiang; T. D. Lin; Y. J. Lee; R. L. Chu; J. Kwo; M. Hong

2012-03-01T23:59:59.000Z

343

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

344

Characterization of leakage current in thin gate oxide subjected to 10 KeV X-ray irradiation  

SciTech Connect

Two components of the low-field current have been identified in thin oxides, following 10 KeV X-ray irradiation. The first component, observed in the direct tunneling region, can be removed by a 100 C anneal, and is also greatly suppressed if the irradiation is done in vacuum or in a nitrogen ambient, or if the oxide is preannealed before irradiation. The origin of this current is speculated to be related to adsorbed water molecules on the gate surface. The second component is observed to begin in the pre-Fowler-Nordheim tunneling (FNT) region and extends into the FNT region, only in oxides less than {approximately}8 nm thick, and persists even after several days of anneal at 300 C. This current exhibits a power law dependence on radiation dose. The origin of this second component is believed to be due to the trap-assisted tunneling via neutral electron traps, similar to the leakage current observed in the oxide after high-voltage stress.

Ling, C.H.; Ang, C.H.; Ang, D.S.

2000-03-01T23:59:59.000Z

345

Synchronized operation by field programmable gate array based signal controller for the Thomson scattering diagnostic system in KSTAR  

Science Conference Proceedings (OSTI)

The Thomson scattering diagnostic system is successfully installed in the Korea Superconducting Tokamak Advanced Research (KSTAR) facility. We got the electron temperature and electron density data for the first time in 2011, 4th campaign using a field programmable gate array (FPGA) based signal control board. It operates as a signal generator, a detector, a controller, and a time measuring device. This board produces two configurable trigger pulses to operate Nd:YAG laser system and receives a laser beam detection signal from a photodiode detector. It allows a trigger pulse to be delivered to a time delay module to make a scattered signal measurement, measuring an asynchronous time value between the KSTAR timing board and the laser system injection signal. All functions are controlled by the embedded processor running on operating system within a single FPGA. It provides Ethernet communication interface and is configured with standard middleware to integrate with KSTAR. This controller has operated for two experimental campaigns including commissioning and performed the reconfiguration of logic designs to accommodate varying experimental situation without hardware rebuilding.

Lee, W. R.; Park, M. K.; Lee, J. H. [National Fusion Research Institute, Gwahangno 113, Daejeon 305-333 (Korea, Republic of); Kim, H. S. [Chungnam National University, Daehak-ro 99, Daejeon 305-764 (Korea, Republic of); Kim, K. H. [Seed Core Co., Ltd., Daehak-ro 99, Daejeon 305-764 (Korea, Republic of)

2012-09-15T23:59:59.000Z

346

Thomson scattering with a gated intensified charge-coupled device camera using a frequency doubled periodically pulsed Nd:YAG laser  

Science Conference Proceedings (OSTI)

Using a gated intensified change-coupled device camera sectioned into 10 spatial and 33 spectral subchannels data collection up to 6 Hz repetition rate from the scattered signals of a Nd{sup 3+}:YAG laser could be handled. This single detection system eases alignment and calibration via Rayleigh scattering. By accumulating up to 1000 Thomson pulse signals first spatial profiles of the electron temperature and electron density were received from a plasma jet. Results are in good agreement with spectroscopic data previously published. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Hirsch, K.; Volk, G. [Institut fuer Plasmaforschung, Universitaet Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart (Germany)] [Institut fuer Plasmaforschung, Universitaet Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart (Germany)

1995-11-01T23:59:59.000Z

347

"The gate-keepers in a changing world: integrating microbial diversity and dynamics with global change biology."  

Science Conference Proceedings (OSTI)

Microorganisms (Bacteria, Archaea and Fungi) are the gate-keepers of many ecosystem-scale biogeochemical cycles. Although there have been measurable changes in ecosystem function due to human activities such as greenhouse gas production, nutrient loading, land-use change, and water consumption, few studies have connected microbial community dynamics with these changes in ecosystem function. Specifically, very little is known about how global changes will induce important functional changes in microbial biodiversity. Even less is known about how microbial functional changes could alter rates of nutrient cycling or whether microbial communities have enough functional redundancy that changes will have little impact on overall process rates. The proposed symposium will provide an overview of this emerging research area, with emphasis on linking the microorganisms directly to important ecological functions under the influence of global change dynamics. The session will include both broad overviews as well as specific case-studies by researchers who examine microbial communities from a variety of taxonomic levels and from various environments. The session will begin broadly, with speakers discussing how microbial communities may inform ecosystem-scale global change studies, and help to make microbial ecological knowledge more tangible for a broad range of ecologists. The session will continue with case studies of microbial community information informing process in global change experiments. Finally, the session will close with speakers discussing how microbial community information might fit into global change models, and what types of information are useful for future studies. We have requested that speakers particularly incorporate their views on what types of microbial data is useful and informative in the context of larger ecosystem processes. We foresee that this session could serve as a focal point for global change microbial ecologists to meet and discuss their field at the ESA 2010 General Meeting. However, more importantly, the session will provide for a broad range of interests for ecosystem ecologists, theoretical ecologists, and global change biologists, and will foster communication between these groups to generate informative microbial community data in the future.

Jessica L.M. Gutknecht and Kathryn M. Docherty

2011-11-01T23:59:59.000Z

348

Comparison between chemical vapor deposited and physical vapor deposited WSi{sub 2} metal gate for InGaAs n-metal-oxide-semiconductor field-effect transistors  

Science Conference Proceedings (OSTI)

We compare chemical vapor deposition (CVD) and physical vapor deposition (PVD) WSi{sub 2} metal gate process for In{sub 0.53}Ga{sub 0.47}As n-metal-oxide-semiconductor field-effect transistors using 10 and 6.5 nm Al{sub 2}O{sub 3} as dielectric layer. The CVD-processed metal gate device with 6.5 nm Al{sub 2}O{sub 3} shows enhanced transistor performance such as drive current, maximum transconductance and maximum effective mobility. These values are relatively better than the PVD-processed counterpart device with improvement of 51.8%, 46.4%, and 47.8%, respectively. The improvement for the performance of the CVD-processed metal gate device is due to the fluorine passivation at the oxide/semiconductor interface and a nondestructive deposition process.

Ong, B. S.; Pey, K. L. [Advanced Materials for Micro and Nano-Systems, Singapore-MIT Alliance, Singapore 637460 (Singapore); School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Ong, C. Y.; Tan, C. S. [School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Antoniadis, D. A. [Advanced Materials for Micro and Nano-Systems, Singapore-MIT Alliance, Singapore 637460 (Singapore); Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Fitzgerald, E. A. [Advanced Materials for Micro and Nano-Systems, Singapore-MIT Alliance, Singapore 637460 (Singapore); Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2011-05-02T23:59:59.000Z

349

Development of bellows and gate valves with a comb-type rf shield for high-current accelerators: Four-year beam test at KEK B-Factory  

SciTech Connect

Since a comb-type rf shield was proposed in 2003 as a rf shield for future high-intensity accelerators, various types of bellow chambers and gate valves with this rf shield have been installed in the KEK B-Factory rings in series and tested with beams. Through beam tests to check the performance, a structural simplification has been tried in parallel. The temperatures of the bellow corrugations decreased by a factor of 3-6 compared to those with a conventional finger-type rf shield in most cases. The temperatures of the body of the gate valves also decreased by a factor of 2-5. These results demonstrated the availability of the comb-type rf shield. Although a discharge was observed in one simplified model, the latest model has shown no problem up to a stored beam current of 1.8 A (1.3 mA/bunch, 6 mm bunch length). Experiences with the comb-type rf shield in these four-year beam tests are reviewed here.

Suetsugu, Yusuke; Kanazawa, Ken-ichi; Shibata, Kyo; Shirai, Mitsuru; Bondar, Aleksander E.; Kuzminykh, Victor S.; Gorbovsky, Aleksander I.; Sonderegger, Kurt; Morii, Minoru; Kawada, Kakuyu [High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801 (Japan); Budker Institute of Nuclear Physics (BINP), Novosibirsk 630090 (Russian Federation); VAT Vakuumventile AG, Haag CH-9469 (Switzerland); VAT SKK Vacuum Ltd., Yokohama, Kanagawa 240-0023 (Japan)

2007-04-15T23:59:59.000Z

350

Functional expression of the heteromeric olfactory cyclic nucleotide-gated channel in the hippocampus: a potential effector of synaptic plasticity in brain neurons  

E-Print Network (OSTI)

Cyclic nucleotide-gated (cng) channels are important components of signaling systems mediating sensory transduction. In vertebrate photoreceptors, light activates a signaling cascade that causes a decrease in intracellular cGMP concentrations, closing retinal cng channels. Signal transduction in olfactory receptor neurons is believed to proceed via G-proteinmediated elevation of intracellular cAMP in response to odorant binding by 7-helix receptors. cAMP opens the olfactory cng channel, which is highly permeable to Ca 2 ?. Here we demonstrate by in situ hybridization and immunohistochemistry with subunit-specific antibodies that both subunits of the heteromeric rat olfactory cng channel are also widely expressed in the brain. Expression of the retinal rod cng channel, however, can be detected only in the eye. In the adult hippocampus, the olfactory cng channel is expressed on cell bodies and processes

Jonathan Bradley; A Yinong Zhang; A Robert Bakin; Henry A. Lester; Gabriele V. Ronnett; Kai Zinn

1997-01-01T23:59:59.000Z

351

Synergetic effects of double laser pulses for the formation of mild plasma in water: Toward non-gated underwater laser-induced breakdown spectroscopy  

Science Conference Proceedings (OSTI)

We experimentally study the dynamics of the plasma induced by the double-laser-pulse irradiation of solid target in water, and find that an appropriate choice of the pulse energies and pulse interval results in the production of an unprecedentedly mild (low-density) plasma, the emission spectra of which are very narrow even without the time-gated detection. The optimum pulse interval and pulse energies are 15-30 {mu}s and about {approx}1 mJ, respectively, where the latter values are much smaller than those typically employed for this kind of study. In order to clarify the mechanism for the formation of mild plasma we examine the role of the first and second laser pulses, and find that the first pulse produces the cavitation bubble without emission (and hence plasma), and the second pulse induces the mild plasma in the cavitation bubble. These findings may present a new phase of underwater laser-induced breakdown spectroscopy.

Sakka, Tetsuo [Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011 (Japan); Institute of Sustainability Science, Kyoto University, Uji, Kyoto 611-0011 (Japan); Tamura, Ayaka; Nakajima, Takashi; Fukami, Kazuhiro; Ogata, Yukio H. [Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011 (Japan)

2012-05-07T23:59:59.000Z

352

Real-time x-ray response of biocompatible solution gate AlGaN/GaN high electron mobility transistor devices  

Science Conference Proceedings (OSTI)

We present the real-time x-ray irradiation response of charge and pH sensitive solution gate AlGaN/GaN high electron mobility transistors. The devices show stable and reproducible behavior under and following x-ray radiation, including a linear integrated response with dose into the muGy range. Titration measurements of devices in solution reveal that the linear pH response and sensitivity are not only retained under x-ray irradiation, but an irradiation response could also be measured. Since the devices are biocompatible, and can be simultaneously operated in aggressive fluids and under hard radiation, they are well-suited for both medical radiation dosimetry and biosensing applications.

Hofstetter, Markus; Funk, Maren; Paretzke, Herwig G.; Thalhammer, Stefan [Helmholtz Zentrum Muenchen, Ingolstaedter Landstrasse 1, 85764 Neuherberg (Germany); Howgate, John; Sharp, Ian D.; Stutzmann, Martin [Walter Schottky Institut, Technische Universitaet Muenchen, Am Coulombwall 3, 85748 Garching (Germany)

2010-03-01T23:59:59.000Z

353

Functional Image-Guided Radiotherapy Planning in Respiratory-Gated Intensity-Modulated Radiotherapy for Lung Cancer Patients With Chronic Obstructive Pulmonary Disease  

SciTech Connect

Purpose: To investigate the incorporation of functional lung image-derived low attenuation area (LAA) based on four-dimensional computed tomography (4D-CT) into respiratory-gated intensity-modulated radiotherapy (IMRT) or volumetric modulated arc therapy (VMAT) in treatment planning for lung cancer patients with chronic obstructive pulmonary disease (COPD). Methods and Materials: Eight lung cancer patients with COPD were the subjects of this study. LAA was generated from 4D-CT data sets according to CT values of less than than -860 Hounsfield units (HU) as a threshold. The functional lung image was defined as the area where LAA was excluded from the image of the total lung. Two respiratory-gated radiotherapy plans (70 Gy/35 fractions) were designed and compared in each patient as follows: Plan A was an anatomical IMRT or VMAT plan based on the total lung; Plan F was a functional IMRT or VMAT plan based on the functional lung. Dosimetric parameters (percentage of total lung volume irradiated with {>=}20 Gy [V20], and mean dose of total lung [MLD]) of the two plans were compared. Results: V20 was lower in Plan F than in Plan A (mean 1.5%, p = 0.025 in IMRT, mean 1.6%, p = 0.044 in VMAT) achieved by a reduction in MLD (mean 0.23 Gy, p = 0.083 in IMRT, mean 0.5 Gy, p = 0.042 in VMAT). No differences were noted in target volume coverage and organ-at-risk doses. Conclusions: Functional IGRT planning based on LAA in respiratory-guided IMRT or VMAT appears to be effective in preserving a functional lung in lung cancer patients with COPD.

Kimura, Tomoki, E-mail: tkkimura@hiroshima-u.ac.jp [Department of Radiation Oncology, Hiroshima University, Graduate School of Biomedical Sciences, Hiroshima City (Japan); Nishibuchi, Ikuno; Murakami, Yuji; Kenjo, Masahiro; Kaneyasu, Yuko; Nagata, Yasushi [Department of Radiation Oncology, Hiroshima University, Graduate School of Biomedical Sciences, Hiroshima City (Japan)

2012-03-15T23:59:59.000Z

354

Analysis of Hippocampal Cell Proliferation, Survival, and Neuronal Morphology in P/Q-Type Voltage-Gated Calcium Channel Mutant Mice  

E-Print Network (OSTI)

Tottering and leaner mutant mice carry mutations in the pore-forming subunit (?1A) of P/Q-type (CaV 2.1) voltage-gated calcium ion (Ca2+) channels that result in reduced Ca2+ current density. Since Ca2+ influx via voltage-dependent Ca2+ channels regulates important Ca2+-dependent neuronal processes including neurotransmitter release and synaptogenesis, we assessed effects of these mutations on hippocampus volume, neuronal density, neuronal morphology of hippocampal pyramidal cells in adult (six-month-old) mice, and adult neurogenesis in three-week-old and six-month-old mice. Hippocampal volume and neuronal density were assessed using hematoxylin and eosin stained serial sections. Neuronal morphology was assessed using Golgi-Cox staining as well as ultrastructural assessment using transmission electron microscopy. Adult hippocampal neurogenesis was assessed using standard 5-bromo-2-deoxyuridine (BrdU) labeling with fluorescent immunohistochemistry (IHC) and proliferating cell nuclear antigen (PCNA) with diaminobenzidine IHC. To determine neuron and astrocyte survival, we used fluorescent double labeling for neurons with BrdU-neuronal nuclei IHC or astrocytes using BrdU-glial fibrillary acidic protein, respectively. Fluoro-Jade histochemistry was used to assess numbers of degenerating cells in the dentate gyrus subgranular zone. Decreased hippocampus volume was observed in tottering female mice and increased dentate hilar and CA1 cell density in mutant mice compared to wild type mice. Cell proliferation was increased in the hilus and combined CA3, CA2 and CA1 regions of mutant mice compared to wild type mice. Decreased total dendritic length and decreased number of dendritic intersections was observed in tottering mice compared to wild type mice. The decrease in dendritic arborization of tottering mice occurred at the concentric circles close to the neuronal cell body indicating that basal dendrites of CA1 pyramidal neurons are reduced. Taken together, P/Q-type voltage gated calcium channel mutation has age variable influence on adult hippocampal cell proliferation, and it altered neuronal morphology in terms of dendritic complexity in tottering mice, while the leaner mutation reduced mitochondrial density.

Nigussie, Fikru

2013-05-01T23:59:59.000Z

355

(DOE/EIS-0128-SA-02): Supplement Analysis: Los Banos-Gates (Path 15) Transmission line project changes to alignment, access road stream crossing, and basis for Supplemental EIS Determination  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Los Banos-Gates (Path 15) Transmission Line Project DOE/EIS-0128-SA02 Western Area Power Administration Sierra Nevada Customer Service Region U.S. Department of Energy Changes to Alignment, Access Road Stream Crossing, and Basis for Supplemental Environmental Impact Statement Determination Background The Los Banos-Gates 500-kilovolt Transmission Line project was originally proposed as part of the California-Oregon Transmission Project in the 1980s. These two projects were the subject of a single set of documents prepared in 1986 (draft) and 1988 (final) that served as the Environmental Impact Statement (EIS) under the National Environmental Policy Act and the Environmental Impact Report (EIR) under the California Environmental Quality Act. The EIS is entitled "Final Environmental Impact

356

Dry etching of a device quality high-k GaxGdyOz gate oxide in CH4/H2-O2 chemistry for the fabrication of III-V MOSFETs  

Science Conference Proceedings (OSTI)

This paper investigates the reactive ion etching of Ga"xGd"yO"z, a device quality high-k gate oxide for the fabrication of III-V metal-oxide-semiconductor field-effect-transistors (MOSFETs) based on high mobility channel device layer structures. The ... Keywords: Compound semiconductor, Dry etching, Ga2O3(Gd2O3) RIE, GaxGdyOz, III-V MOSFET

X. Li; H. Zhou; R. J. W. Hill; C. D. W. Wilkinson; I. G. Thayne

2007-05-01T23:59:59.000Z

357

Dry etching device quality high-? GaxGdyOz gate oxide in SiCl4 chemistry for low resistance ohmic contact realisation in fabricating III-V MOSFETs  

Science Conference Proceedings (OSTI)

This paper investigates the reactive ion etching (RIE) of Ga"xGd"yO"z, a device quality high-@k gate oxide for a low resistance ohmic contact realisation in fabricating III-V metal-oxide semiconductor field-effect-transistors (MOSFETs) based on high ... Keywords: Dry etching, Ga2O3-Gd2O3, GaxGdyOz, GaAs MOSFET, High-? oxide, RIE, SiCl4

X. Li; H. Zhou; R. J. W. Hill; P. Longo; M. Holland; I. G. Thayne

2010-05-01T23:59:59.000Z

358

Engineering evaluation/cost analysis for the proposed removal of contaminated materials from Pad 1 at the Elza Gate site, Oak Ridge, Tennessee  

Science Conference Proceedings (OSTI)

This engineering evaluation/cost analysis (EE/CA) has been prepared in support of the proposed removal action for cleanup of radioactively contaminated concrete and soil beneath a building on privately owned commercial property in Oak Ridge, Tennessee. The property, known as the Elza Gate site, became contaminated with uranium-238, radium-226, thorium-232, thorium-230, and decay products as a result of the Manhattan Engineer District storing uranium ore and ore processing residues at the site in the early 1940s. The US Department of Energy (DOE) has responsibility for cleanup of the property under its Formerly Utilized Sites Remedial Action Program (FUSRAP). The DOE plans to remove the cracked and worn concrete pad and contaminated subsoil beneath the pad, after which the property owner/tenant will provide clean backfill and new concrete. Portions of the pad and subsoil are contaminated and, if stored or disposed of improperly, may represent a potential threat to public health or welfare and the environment. The EE/CA report is the appropriate documentation for the proposed removal action, as identified in guidance from the US Environmental Protection Agency. the objective of the EE/CA report, in addition to identifying the planned removal action, is to document the selection of response activities that will mitigate the potential for release of contaminants from the property into the environment and minimize the related threats to public health or welfare and the environment. 7 refs., 2 figs., 3 tabs.

Not Available

1990-06-01T23:59:59.000Z

359

Engineering evaluation/cost analysis for the proposed removal of contaminated materials from pad 1 at the Elza Gate site, Oak Ridge, Tennessee  

SciTech Connect

This engineering evaluation/cost analysis (EE/CA) has been prepared in support of the proposed removal action for cleanup of radioactively contaminated concrete and soil beneath a building on privately owned commercial property in Oak Ridge, Tennessee. The property, known as the Elza Gate site, became contaminated with uranium-238, radium-226, thorium-232, thorium-230, and decay products as a result of the Manhattan Engineer District storing uranium ore and ore processing residues at the site in the early 1940s. The US Department of Energy (DOE) has responsibility for cleanup of the property under its Formerly Utilized Sites Remedial Action Program (FUSRAP). The DOE plans to remove the cracked and worn concrete pad and contaminated subsoil beneath the pad, after which the property owner/tenant will provide clean backfill and new concrete. Portions of the pad and subsoil are contaminated and, if stored or disposed of improperly, may represent a potential threat to public health or welfare and the environment. The EE/CA report is the appropriate documentation for the proposed removal action, as identified in guidance from the US Environmental Protection Agency. The objective of the EE/CA report, in addition to identifying the planned removal action, is to document the selection of response activities that will mitigate the potential for release of contaminants from the property into the environment and minimize the related threats to public health or welfare and the environment. 7 refs., 2 figs., 3 tabs.

Not Available

1990-09-01T23:59:59.000Z

360

Hydroacoustic Evaluation of Juvenile Salmonid Passage at The Dalles Dam Sluiceway, 2005  

SciTech Connect

The U.S. Army Corps of Engineers Portland District engaged the Pacific Northwest National Laboratory to evaluate fish passage at The Dalles Dam powerhouse in 2005. The goal of the study was to provide information on smolt passage that will inform decisions on long-term measures and operations to enhance sluiceway passage and reduce turbine passage to improve smolt survival at the dam. The study addressed one of the main programs dedicated to improving juvenile salmonid survival at The Dalles Dam: Surface Flow Bypass. The study objectives (see below) were met using a combination of hydroacoustic and hydraulic data. The study incorporated fixed-location hydroacoustic methods across the entire powerhouse, with especially intense sampling using multiple split-beam transducers at all sluiceway portals. We did not sample fish passage at the spillway in 2005. In the sluiceway nearfield, we used an acoustic camera to track fish movements. The fish data were interpreted with hydraulic data from a computational fluid dynamics (CFD) model. Fish passage data were collected in the framework of an experiment using a randomized block design (3-day treatments; two treatments) to compare two sluiceway operational configurations: Sluice 2+5 and Sluice 2+19 (six gates open for each configuration). Total project outflow was 76% of the 10-year average for spring and 71% of the 10-year average for summer. Based on these findings, we make the following recommendations: 1) The sluice should be operated 24 h/d from April until November. 2) Open six rather than three sluice gates to take advantage of the maximum hydraulic capacity of the sluiceway. 3) Open the three gates above the western-most operating main turbine unit and the three gates at MU 8 where turbine passage rates are relatively high. 4) Operate the turbine units below open sluice gates as a standard fish operations procedure. 5) Develop hydraulic and entrance enhancements to the sluiceway to tap the potential of The Dalles Dam sluiceway to be highly efficient and effective at passing juvenile salmonids. 6) Consider the following elements for surface flow bypasses during design of any sluiceway enhancements at The Dalles Dam: Form an extensive surface flow bypass flow net (surface bypass discharge greater than ~7% of total project discharge) at both west and east ends of the dam; Create a gradual increase in water velocity approaching the surface flow bypass (ideally, acceleration < 1 m/s per meter); Make water velocities at an entrance high enough (> 3 m/s) to entrain the subject juvenile fishes, e.g., 10,000 cfs or so; Adapt the shape and orientation of the surface entrance(s) to fit site-specific features, i.e., test a Removable Sluiceway Weir. 7)The Dalles Dam sluiceway has potential to be highly efficient and effective at passing juvenile salmonids. We recommend tapping this potential with enhancements to the sluiceway.

Johnson, Gary E.; Khan, Fenton; Hedgepeth, J; Mueller, Robert P.; Rakowski, Cynthia L.; Richmond, Marshall C.; Serkowski, John A.; Skalski, John R.

2006-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


361

Hydroacoustic Evaluation of Juvenile Salmonid Passage at The Dalles Dam Sluiceway, 2005  

Science Conference Proceedings (OSTI)

The U.S. Army Corps of Engineers Portland District engaged the Pacific Northwest National Laboratory to evaluate fish passage at The Dalles Dam powerhouse in 2005. The goal of the study was to provide information on smolt passage that will inform decisions on long-term measures and operations to enhance sluiceway passage and reduce turbine passage to improve smolt survival at the dam. The study addressed one of the main programs dedicated to improving juvenile salmonid survival at The Dalles Dam: Surface Flow Bypass. The study objectives (see below) were met using a combination of hydroacoustic and hydraulic data. The study incorporated fixed-location hydroacoustic methods across the entire powerhouse, with especially intense sampling using multiple split-beam transducers at all sluiceway portals. We did not sample fish passage at the spillway in 2005. In the sluiceway nearfield, we used an acoustic camera to track fish movements. The fish data were interpreted with hydraulic data from a computational fluid dynamics (CFD) model. Fish passage data were collected in the framework of an experiment using a randomized block design (3-day treatments; two treatments) to compare two sluiceway operational configurations: Sluice 2+5 and Sluice 2+19 (six gates open for each configuration). Total project outflow was 76% of the 10-year average for spring and 71% of the 10-year average for summer. Based on these findings, we make the following recommendations: 1) The sluice should be operated 24 h/d from April until November. 2) Open six rather than three sluice gates to take advantage of the maximum hydraulic capacity of the sluiceway. 3) Open the three gates above the western-most operating main turbine unit and the three gates at MU 8 where turbine passage rates are relatively high. 4) Operate the turbine units below open sluice gates as a standard fish operations procedure. 5) Develop hydraulic and entrance enhancements to the sluiceway to tap the potential of The Dalles Dam sluiceway to be highly efficient and effective at passing juvenile salmonids. 6) Consider the following elements for surface flow bypasses during design of any sluiceway enhancements at The Dalles Dam: Form an extensive surface flow bypass flow net (surface bypass discharge greater than ~7% of total project discharge) at both west and east ends of the dam; Create a gradual increase in water velocity approaching the surface flow bypass (ideally, acceleration 3 m/s) to entrain the subject juvenile fishes, e.g., 10,000 cfs or so; Adapt the shape and orientation of the surface entrance(s) to fit site-specific features, i.e., test a Removable Sluiceway Weir. 7)The Dalles Dam sluiceway has potential to be highly efficient and effective at passing juvenile salmonids. We recommend tapping this potential with enhancements to the sluiceway.

Johnson, Gary E.; Khan, Fenton; Hedgepeth, J; Mueller, Robert P.; Rakowski, Cynthia L.; Richmond, Marshall C.; Serkowski, John A.; Skalski, John R.

2006-06-01T23:59:59.000Z

362

Hydroacoustic Evaluation of Juvenile Salmonid Passage at The Dalles Dam in 2004  

DOE Green Energy (OSTI)

The U.S. Army Corps of Engineers Portland District engaged the Pacific Northwest National Laboratory to evaluate juvenile salmon passage at The Dalles Dam in 2004 to inform decisions about long-term measures and operations to enhance sluiceway and spill passage and reduce turbine passage to improve smolt survival at the dam. PNNL used fixed-location hydroacoustic sampling across the entire project, especially at the sluiceway and spillway, using multiple split-beam transducers at selected locations. At the sluiceway nearfield, we used an acoustic camera to track fish. The fish data were interpreted and integrated with hydraulic data from a CFD model and in-field ADCP measurements. Two sluiceway operations were compared: West only (SL 1) vs. West+East (SL 1 + SL 18). Based on our findings, we concluded that The Dalles Dam sluiceway has the potential to be highly efficient and effective at passing juvenile salmonids. This potential could be tapped with hydraulic and entrance enhancements to the sluiceway. We recommended the following: (1) six rather than three sluice gates should be opened to take advantage of the maximum hydraulic capacity of the sluiceway. (2) The turbine units below open sluice gates should be operated as a standard fish operations procedure. (3) In 2005, the Corps and fisheries agencies should consider operating sluice gates in one or more of the following combinations of six gates: (a) SL 1-1, 1-2, 1-3 and SL 18-1, 18-2, 18-3 (repeat 2004 operation), (b) SL 1-1, 1-2, 1-3 and SL 11-1, 11-2, 11-3, or (c) SL 1-1, 1-2, 1-3 and SL 2-1, 2-2, 2-3. The following elements for surface flow bypasses which should be considered during design of any sluiceway enhancements at The Dalles Dam: (1) form an extensive surface flow bypass flow net (surface bypass discharge greater than {approx}7% of total project discharge), (2) create a gradual increase in water velocity approaching the surface flow bypass (ideally, acceleration < 1 m/s/m), (3) make water velocities at an entrance high enough (> 3 m/s) to entrain the subject juvenile fishes, (4) adapt the shape and orientation of the surface entrance(s) to fit site-specific features, and (5) consider installing a forebay wall to increase fish availability to the surface flow bypass.

Johnson, Gary E.; Hanks, Michael E.; Khan, Fenton; Cook, Chris B.; Hedgepeth, J; Mueller, Robert P.; Rakowski, Cynthia L.; Richmond, Marshall C.; Sargeant, Susan L.; Serkowski, John A.; Skalski, John R.

2005-06-01T23:59:59.000Z

363

Hydroacoustic Evaluation of Juvenile Salmonid Passage at The Dalles Dam in 2004  

Science Conference Proceedings (OSTI)

The U.S. Army Corps of Engineers Portland District engaged the Pacific Northwest National Laboratory to evaluate juvenile salmon passage at The Dalles Dam in 2004 to inform decisions about long-term measures and operations to enhance sluiceway and spill passage and reduce turbine passage to improve smolt survival at the dam. PNNL used fixed-location hydroacoustic sampling across the entire project, especially at the sluiceway and spillway, using multiple split-beam transducers at selected locations. At the sluiceway nearfield, we used an acoustic camera to track fish. The fish data were interpreted and integrated with hydraulic data from a CFD model and in-field ADCP measurements. Two sluiceway operations were compared: West only (SL 1) vs. West+East (SL 1 + SL 18). Based on our findings, we concluded that The Dalles Dam sluiceway has the potential to be highly efficient and effective at passing juvenile salmonids. This potential could be tapped with hydraulic and entrance enhancements to the sluiceway. We recommended the following: (1) six rather than three sluice gates should be opened to take advantage of the maximum hydraulic capacity of the sluiceway. (2) The turbine units below open sluice gates should be operated as a standard fish operations procedure. (3) In 2005, the Corps and fisheries agencies should consider operating sluice gates in one or more of the following combinations of six gates: (a) SL 1-1, 1-2, 1-3 and SL 18-1, 18-2, 18-3 (repeat 2004 operation), (b) SL 1-1, 1-2, 1-3 and SL 11-1, 11-2, 11-3, or (c) SL 1-1, 1-2, 1-3 and SL 2-1, 2-2, 2-3. The following elements for surface flow bypasses which should be considered during design of any sluiceway enhancements at The Dalles Dam: (1) form an extensive surface flow bypass flow net (surface bypass discharge greater than {approx}7% of total project discharge), (2) create a gradual increase in water velocity approaching the surface flow bypass (ideally, acceleration 3 m/s) to entrain the subject juvenile fishes, (4) adapt the shape and orientation of the surface entrance(s) to fit site-specific features, and (5) consider installing a forebay wall to increase fish availability to the surface flow bypass.

Johnson, Gary E.; Hanks, Michael E.; Khan, Fenton; Cook, Chris B.; Hedgepeth, J; Mueller, Robert P.; Rakowski, Cynthia L.; Richmond, Marshall C.; Sargeant, Susan L.; Serkowski, John A.; Skalski, John R.

2005-06-01T23:59:59.000Z

364

High-resolution core-level photoemission study of CF{sub 4}-treated Gd{sub 2}O{sub 3}(Ga{sub 2}O{sub 3}) gate dielectric on Ge probed by synchrotron radiation  

SciTech Connect

High-resolution core-level photoemission analysis using synchrotron radiation was used to investigate the superior electrical performance of aGa{sub 2}O{sub 3}(Gd{sub 2}O{sub 3}) gate dielectric on Ge(001) after CF{sub 4} treatment. Prior to the treatment, a thin germanate-like oxide layer that formed at the interface prevented Ge from diffusing to the surface. The Ge surface retained a small amount of buckled dimers from the as-grown sample. The buckled dimers were quickly removed by CF{sub 4} plasma treatment followed by an annealing process, resulting in a more uniform interface than that of the as-grown sample. The detailed interfacial electronic structure for the untreated and treated samples are presented.

Pi, T.-W. [National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan (China); Huang, M. L.; Kwo, J. [Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan (China); Department of Physics, National TsingHua University, Hsinchu 30013, Taiwan (China); Lee, W. C.; Chu, L. K.; Lin, T. D.; Chiang, T. H.; Wang, Y. C.; Wu, Y. D.; Hong, M. [Department of Materials Science and Engineering, National TsingHua University, Hsinchu 30013, Taiwan (China)

2011-02-07T23:59:59.000Z

365

GaSb molecular beam epitaxial growth on p-InP(001) and passivation with in situ deposited Al{sub 2}O{sub 3} gate oxide  

SciTech Connect

The integration of high carrier mobility materials into future CMOS generations is presently being studied in order to increase drive current capability and to decrease power consumption in future generation CMOS devices. If III-V materials are the candidates of choice for n-type channel devices, antimonide-based semiconductors present high hole mobility and could be used for p-type channel devices. In this work we first demonstrate the heteroepitaxy of fully relaxed GaSb epilayers on InP(001) substrates. In a second part, the properties of the Al{sub 2}O{sub 3}/GaSb interface have been studied by in situ deposition of an Al{sub 2}O{sub 3} high-{kappa} gate dielectric. The interface is abrupt without any substantial interfacial layer, and is characterized by high conduction and valence band offsets. Finally, MOS capacitors show well-behaved C-V with relatively low D{sub it} along the bandgap, these results point out an efficient electrical passivation of the Al{sub 2}O{sub 3}/GaSb interface.

Merckling, C.; Brammertz, G.; Hoffmann, T. Y.; Caymax, M.; Dekoster, J. [Interuniversity Microelectronics Center (IMEC vzw), Kapeldreef 75, 3001, Leuven (Belgium); Sun, X. [Katholieke Universiteit Leuven, Celestijnelaan 200D, 3001, Leuven (Belgium); Department of Electrical Engineering, Yale University, New Haven, Connecticut 06520-8284 (United States); Alian, A.; Heyns, M. [Interuniversity Microelectronics Center (IMEC vzw), Kapeldreef 75, 3001, Leuven (Belgium); Katholieke Universiteit Leuven, Celestijnelaan 200D, 3001, Leuven (Belgium); Afanas'ev, V. V. [Katholieke Universiteit Leuven, Celestijnelaan 200D, 3001, Leuven (Belgium)

2011-04-01T23:59:59.000Z

366

Dearborn Gate Osher Lifelong Learning Institute  

E-Print Network (OSTI)

, Germany Ascendant, Sanctions and Nonproliferation, the Caucasus and Global Governance. We will be drawing

Tufts University

367

POWER ESTIMATION FOR FIELD PROGRAMMABLE GATE ARRAYS  

E-Print Network (OSTI)

...........................................................................62 Figure 4.10 Power versus average input transition densities for a 4-Input LUT................................................63 Figure 4.11 Power versus different LUT sizes with an input transition density of 0........................................................64 Figure 4.13 Power versus different average input transition densities for a 16-Input Multiplexer

Wilton, Steve

368

Microwave quantum logic gates for trapped ions  

Science Conference Proceedings (OSTI)

... for universal quantum information processing, because any unitary operation on ... Gordan coefficients, we predict a 97% repumping efficiency to j" ...

2011-08-18T23:59:59.000Z

369

Gate Hours & Services | Stanford Synchrotron Radiation Lightsource  

NLE Websites -- All DOE Office Websites (Extended Search)

from sunset to 6 am and on all shifts during weekends and holidays. Directions and Maps: Directions and maps are available from Security or the web. Emergency Assistance: In...

370

MHK Technologies/Severn Barrage | Open Energy Information  

Open Energy Info (EERE)

Severn Barrage Severn Barrage < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Severn Barrage.jpg Technology Profile Primary Organization Severn Tidal Power Group STpg Technology Resource Click here Current Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 4 Proof of Concept Technology Description The Severn Barrage is a proposed tidal power station to be built across the Bristol Channel Severn Estuary Along the length of the Severn Barrage open sluice gates would allow the tide to flow in These gates would then be closed at high tide trapping enormous quantities of water behind the barrage A total of 214 40MW turbines would be built into the barrage through which the trapped water would return at high pressure when the tide turns generating electricity In order to permit shipping to pass through the barrage an enormous set of shipping locks would be constructed The tidal turbines along the barrage would generate the same amount of electricity as three of the latest nuclear power stations 8 6 GW during flow and 2 GW on average This would be sufficient to provide 5 6 of the current electricity usage of England and Wales equivalent to 8 large coal fired power stations

371

USLCI Database_Electricity, at Grid, US, 2008 Gate to gate life...  

Open Energy Info (EERE)

of fuels used for utility electricity generation in US. Fuels include biomass, coal, petroleum, geothermal, natural gas, nuclear, solar, hydroelectric and wind energy...

372

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Impact Natural Fluctuation of Water Level in Par Pond and Reduced Water Flow in Steel Creek below L Lake at the Savannah River Site http:energy.govnepadownloads...

373

Gates Mills, Ohio: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

519°, -81.4034477° 519°, -81.4034477° 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":41.5175519,"lon":-81.4034477,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

374

Yeast Golden Gate: Standardized Assembly of S. cerevisiae Transcriptional Units  

E-Print Network (OSTI)

BBF RFC 88 describes a new standard for the assembly of basic Saccharomyces cerevisiae transcriptional units (TUs) consisting of a promoter/5untranslated region (UTR), open reading frame (ORF), and 3UTR/terminator. Note ...

Boeke, Jef

2012-10-11T23:59:59.000Z

375

Gate Coupling and Charge Distribution in Nanowire Field Effect Transistors  

E-Print Network (OSTI)

York, 1981. (9) Ilani, S.; Donev, L. A. K.; Kindermann, M.; McEuen, P. L. Nat. Phys. 2006, 2, 687. (10

Wu, Junqiao

376

Compact modeling of quantum effects in double gate MOSFETs  

E-Print Network (OSTI)

threshold voltage and off-current requirement. In lateralrequirements. Another reason is the reluctance to depart from the standardized voltage

Wang, Wei

2007-01-01T23:59:59.000Z

377

Technical Report CSTN-151 Field Programmable Gate Arrays for Computational  

E-Print Network (OSTI)

transform for image processing. In: Proc. 2011 Symposium on Photonics and Op- toelectronics (SOPO), Wuhan

Hawick, Ken

378

South Gate, Maryland: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Maryland: Energy Resources Maryland: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 39.1289978°, -76.6257995° 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":39.1289978,"lon":-76.6257995,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

379

Gating System Optimisation Design Study of a Cast Automobile ...  

Science Conference Proceedings (OSTI)

First Principles Modeling of Shape Memory Alloy Magnetic Refrigeration Materials ... of Lithium Battery Materials LiMPO4 (M = Mn, Fe, Co, and Ni): A Comparative ... Forming-Crush Simulation Optimization Using Internal State Variable Model.

380

Six Federal Agencies to Help Open the 'GATE' to Enhanced ...  

Science Conference Proceedings (OSTI)

... Defense, and Energy (represented by two separate entities: the National Nuclear Security Administration and the Office of Energy Efficiency and ...

2010-11-18T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Your Energy Pledge? Conversation on the Future of the Wind Industry Science Lecture: Talking the Higgs Boson with Dr. Joseph Incandela Energy Innovation Hubs Online Q&A Cliff...

382

Genetic Programs Constructed from Layered Logic Gates in Single Cells  

E-Print Network (OSTI)

Genetic programs function to integrate environmental sensors, implement signal processing algorithms and control expression dynamics[1]. These programs consist of integrated genetic circuits that individually implement ...

Moon, Tae Seok

383

Programmable CMOS CNN Cell Based on Floating-gate ... - Springer  

Science Conference Proceedings (OSTI)

A prototype cell in CMOS technology (AMI, 1.2 micron) was fabricated and tested for eight image processing tasks. Keywords: vision chips, cellular neural...

384

Field emission cathode gating for RF electron guns and planar ...  

Metal surfaces are provided both radially around and behind the dielectric material to shape the electric fields that accelerate and guide the beam ...

385

Analysis of local stress distribution in a metal gate MOSFET ...  

Science Conference Proceedings (OSTI)

... Raman spectroscopy is a promising technique for stress analysis in Si devices Non-destructive, non-contact Bulk sample cf TEM ... Ram an Sh ift (c ...

2013-03-29T23:59:59.000Z

386

Pramipexole effects on startle gating in rats and normal men  

E-Print Network (OSTI)

brain regional activity of catechol-O-methyl transferase (reflex depends on the catechol O-methyltransferase Val158Met

Swerdlow, Neal R.; Lelham, Sophia A.; Sutherland Owens, Ashley N.; Chang, Wei-Li; Sassen, Sebastiaan D.; Talledo, Jo A.

2009-01-01T23:59:59.000Z

387

Genes order and phylogenetic reconstruction ... - ResearchGate  

E-Print Network (OSTI)

criterion, based on the least-squared error. We have used the retree .... of ancestral mammals: lessons from human, mouse and rat genomes. Genome Res .,.

388

GATE -a General Architecture for Text Engineering Hamish Cunningham  

E-Print Network (OSTI)

~dcs, shef. ac. uk http://www, des. shef. ac. uk/re search/groups/nip/nip, html Abstract Much progress has. integration overheads. In some respects these probleIns are insoluble without general changes in the way NLE by these problems by providing a soft- ware architecture for NLE systems. Our view is that succesful algorithmic

389

Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Response & Procedures or Search Energy.gov Search Clear Filters All Videos Secretary Moniz at Town Hall Forum on Departmental Reorganization Data Jam at New York Energy Week...

390

An innovative funnel and gate approach to groundwater remediation  

SciTech Connect

The US Department of Energy, office of Science and Technology (EM-50) sponsored a demonstration project of the Barrier Member Containment Corporation`s patented EnviroWall{trademark} system at the Savannah River site. With this system, contaminated groundwater can be funneled into a treatment system without pumping the contaminated water to the surface. The EnviroWall{trademark} barrier and pass-through system, an innovative product of sic years of research and development, provides a means to enhance groundwater flow on the upgradient side of an impermeable wall and direct it to an in situ treatment system. The EnviroWall{trademark} system is adaptable to most site conditions. Remedial applications range form plume containment to more robust designs that incorporate groundwater manipulation coupled with in situ treatment. Several key innovations of the EnviroWall{trademark} system include the following: a method for guide box installation; a means for using interlocking seals at vertical seams; a down-hole video camera for inspecting seams and panels, installation of horizontal- and vertical-collection systems; installation of vertical monitoring wells and instrumentation on each side of the barrier; site-specific backfill design; and a pass-through system for funneling groundwater into a treatment system.

Johnson, D.O.; Wilkey, M.L.; Willis, J.M. [Argonne National Lab., IL (United States). Energy Systems Div.; Breaux, L.; McKinsey, T. [Barrier Member Containment Corp., Belle Chasse, LA (United States)

1996-12-01T23:59:59.000Z

391

ESS 2012 Peer Review - Engineered Gate Oxides for Wide Bandgap...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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...

392

Bill Gates visit to Idaho validates innovation role for national...  

NLE Websites -- All DOE Office Websites (Extended Search)

It was amazing to see reactor fuel analysis and how it can be conducted safely in a hot cell environment." "Terrapower has many cooperative projects and there are lots of...

393

Laser Drilling with Gated High Power Fiber Lasers  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Presentation Title, Laser Drilling...

394

Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Plenary Meeting of the Nuclear Suppliers Group (NSG). The meeting was held in in Seattle on June 21-22 and was chaired by Deputy Secretary Poneman, who expressed the deep...

395

Slide Gates on Ladles as Productivity Improvements for Materials ...  

Science Conference Proceedings (OSTI)

... small batch to continuos flow conversion and minimum energy consumption. ... Material Selection for the Lining of Aluminum Holding & Melting Furnaces.

396

A Detailed Power Model for Field Programmable Gate Arrays  

E-Print Network (OSTI)

1998]. Therefore, the Transition Density Model is employed in this power model. The Transition Density, and are an important component of the total overall power. However, the original Transition Density model does and discharging of load and parasitic capacitances. Therefore, dynamic power is closely related to the transition

Wilton, Steve

397

Novel Nonvolatile Memories With Engineered Nanocrystal Floating Gate  

E-Print Network (OSTI)

the device size and lowering the power consumption. In orderpower consumption and nonvolatility. Flash memories are the most frequently used devicespower consumption, fast write performance and extremely good endurance (up to 10 16 cycles for 3.3V devices).

Li, Bei

2010-01-01T23:59:59.000Z

398

Application of Slide Gate Systems in Copper Production  

Science Conference Proceedings (OSTI)

... for the Extraction of High Value Non-commodity Metals: An Overview of Lithium , ... Pyro-decomposition of Pyrite and Arsenopyrite for Sulphur and Arsenic...

399

Neutral Oil Loss During Alkali Refining - ResearchGate  

U.S. Energy Information Administration (EIA)

Neutral Oil Loss During Alkali Refining. Albert J. Dijkstra. Journal of Oil & Fat Industries (Impact ... Experiments with cotton oil and soybean o ...

400

Diagnosis of the Net Cloud Mass Flux in Gate  

Science Conference Proceedings (OSTI)

A diagnostic analysis of the net cloud mass flux for the mean state of Phase III is presented. In the upper troposphere, the environmental mass flux is shown to be slightly larger than the adiabatic sinking motion required by radiative cooling. ...

Yi-Leng Chen

1985-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Gated Conductance of Thin Indium Tin Oxide - The Simplest Transistor  

E-Print Network (OSTI)

Transistors are the fundamental building block of modern electronic devices. So far, all transistors are based on various types of semiconductor junctions. The most common bipolar-junction transistors and metal-oxide-semiconductor field-effect transistors contain p-n junctions to control the current, depending on applied biases across the junctions. Thin-film transistors need metal-semiconductor junctions for injecting and extracting electrons from their channels. Here, by coating a heavily-doped thin indium-tin-oxide (ITO) film through a shadow mask onto a biopolymer chitosan/ITO/glass substrate, we can have a high-performance junctionless transparent organic-inorganic hybrid thin film transistor. This could be the simplest transistor in the world, to our knowledge, not only in its structure, but also its fabrication process. In addition, the device performance is found to be greatly enhanced using a reinforced chitosan/SiO2 hybrid bilayer dielectric stack. Our results clearly show that this architecture can...

Jiang, Jie; Sun, Jia; Dou, Wei; Zhang, Qing

2012-01-01T23:59:59.000Z

402

Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pledge? Conversation on the Future of the Wind Industry Science Lecture: Talking the Higgs Boson with Dr. Joseph Incandela Energy Innovation Hubs Online Q&A Prev 1 2 3 4 5 6 7 8 9...

403

J-44: Fast Triangular Gate Pulse Measurement Techniques for ...  

Science Conference Proceedings (OSTI)

Conventional I-V measurement techniques, which may give undesirable stress ... Improved Performance of Bulk-Heterojunction Organic Solar Cells with the Use...

404

Direct Injection Compressed Ignition Diesel Automotive Technology Education GATE Program  

DOE Green Energy (OSTI)

The underlying goal of this project was to provide multi-disciplinary engineering training for graduate students in the area of internal combustion engines, specifically in direct injection compression ignition engines. The program was designed to educate highly qualified engineers and scientists that will seek to overcome technological barriers preventing the development and production of cost-effective high-efficiency vehicles for the US. market. Further, these highly qualified engineers and scientists will foster an educational process to train a future workforce of automotive engineering professionals who are knowledgeable about and have experience in developing and commercializing critical advanced automotive technologies. Eight objectives were defined to accomplish this goal: (1) Develop an interdisciplinary internal combustion engine curriculum emphasizing direct injected combustion ignited diesel engines. (2) Encourage and promote interdisciplinary interaction of the faculty. (3) Offer a Ph.D. degree in internal combustion engines based upon an interdisciplinary curriculum. (4) Promote strong interaction with industry, develop a sense of responsibility with industry and pursue a self sustaining program. (5) Establish collaborative arrangements and network universities active in internal combustion engine study. (6) Further Enhance a First Class educational facility. (7) Establish ''off-campus'' M.S. and Ph.D. engine programs of study at various industrial sites. (8) Extend and Enhance the Graduate Experience.

Carl L. Anderson

2006-09-25T23:59:59.000Z

405

Quantum gates, sensors, and systems with trapped ions  

E-Print Network (OSTI)

Quantum information science promises a host of new and useful applications in communication, simulation, and computational algorithms. Trapped atomic ions are one of the leading physical systems with potential to implement ...

Wang, Shannon Xuanyue

2012-01-01T23:59:59.000Z

406

High Temperature Universal Silicon on Insulator (SOI) Gate Drive  

higher current drive, on-chip regulation capacitors, and more space efficient and robust on-chip layout. ... Development of high temperature galvanic isolation

407

H2, Gate Dielectric Thickness Dependence of OTFT Performance  

Science Conference Proceedings (OSTI)

[1] S. K. Park, SPIE Conference Digest, 100 (2007). [2] D. J. Gundlach, et al. Nature Materials, 7(3), 216-221 (2008). [3] D. A. Mourey, et al, IEEE Trans. Electron...

408

Characterization of ALD Beryllium Oxide as a Potential High-? Gate ...  

Science Conference Proceedings (OSTI)

Elements of Power Conversion Integration in Group-III Nitride Heterojunctions Fabrication of PLZT Dielectric Films for Power Inverters in Electric Drive Vehicles.

409

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

elemental Si (Si0) and the peak at the ca. 4.4 eV higher binding energy as that of stoichiometric oxide (Si4+). From the measured ratio of Si4+ intensity to Si0, the thickness of...

410

Project W-320 ALARA Plan  

Science Conference Proceedings (OSTI)

This supporting document establishes the As Low As Reasonable Achievable (ALARA) Plan to be followed during Sluicing Project W-320 design and construction activities to minimize personnel exposure to radiation and hazardous materials.

Harty, W.M.

1995-06-06T23:59:59.000Z

411

Hanford Retrieval Technology Development Ruben Mendoza  

Hydro-trans R-5 R-6 R-7 Diversion Box Vacuum Exhaust EXH-1001-HIH air water waste ... influence, attack angles, and energy of the sluice stream on the waste

412

Safety equipment list for 241-C-106 waste retrieval, Project W-320: Revision 1  

Science Conference Proceedings (OSTI)

The goals of the C-106 sluicing operation are: (1) to stabilize the tank by reducing the heat load in the tank to less than 42 MJ/hr (40,000 Btu/hour), and (2) to initiate demonstration of single-shell tank (SST) retrieval technology. The purpose of this supporting document (SD) is as follows: (1) to provide safety classifications for items (systems, structures, equipment, components, or parts) for the waste retrieval sluicing system (WRSS), and (2) to document and methodology used to develop safety classifications. Appropriate references are made with regard to use of existing systems, structures, equipments, components, and parts for C-106 single-shell transfer tank located in the C Tank Farm, and 241-AY-102 (AY-102) double shell receiver tanks (DST) located in the Aging Waste Facility (AWF). The Waste Retrieval Sluicing System consists of two transfer lines that would connect the two tanks, one to carry the sluiced waste slurry to AY-102, and the other to return the supernatant liquid to C-106. The supernatant, or alternate fluid, will be used to mobilize waste in C-106 for the sluicing process. The equipment necessary for the WRSS include pumps in each tank, sluicers to direct the supernatant stream in C-106, a slurry distributor in AY-102, HVAC for C-106, instrumentation and control devices, and other existing components as required.

Conner, J.C.

1994-11-15T23:59:59.000Z

413

Hanford Site Tank 241-C-108 Residual Waste Contaminant Release Models and Supporting Data  

SciTech Connect

This report presents the results of laboratory characterization, testing, and analysis for a composite sample (designated 20578) of residual waste collected from single-shell tank C-108 during the waste retrieval process after modified sluicing. These studies were completed to characterize concentration and form of contaminant of interest in the residual waste; assess the leachability of contaminants from the solids; and develop release models for contaminants of interest. Because modified sluicing did not achieve 99% removal of the waste, it is expected that additional retrieval processing will take place. As a result, the sample analyzed here is not expected to represent final retrieval sample.

Cantrell, Kirk J.; Krupka, Kenneth M.; Geiszler, Keith N.; Arey, Bruce W.; Schaef, Herbert T.

2010-06-18T23:59:59.000Z

414

Cold test plan for the Old Hydrofracture Facility tank contents removal project, Oak Ridge National Laboratory, Oak Ridge, Tennessee  

SciTech Connect

This Old Hydrofracture Facility (OHF) Tanks Contents Removal Project Cold Test Plan describes the activities to be conducted during the cold test of the OHF sluicing and pumping system at the Tank Technology Cold Test Facility (TTCTF). The TTCTF is located at the Robotics and Process Systems Complex at the Oak Ridge National Laboratory (ORNL). The cold test will demonstrate performance of the pumping and sluicing system, fine-tune operating instructions, and train the personnel in the actual work to be performed. After completion of the cold test a Technical Memorandum will be prepared documenting completion of the cold test, and the equipment will be relocated to the OHF site.

1997-11-01T23:59:59.000Z

415

A Database for Fast Access to Particle-Gated Event Data  

E-Print Network (OSTI)

In nuclear physics experiments involving in-flight fragmentation of ions, usually a large number of different nuclei is produced and various detection systems are employed to identify the species event by event, e.g. by measuring their specific energy loss and time-of-flight. For such cases -- not necessarily limited to nuclear physics -- where subsets of a large dataset can be identified using a small number of measured signals a software for fast access to varying subsets of such a dataset has been developed. The software has been used successfully in the analysis of a one neutron knock-out experiment at GANIL.

A. Brger

2007-02-08T23:59:59.000Z

416

Binding of the Anticonvulsant Drug Lamotrigine and the Neurotoxin Batrachotoxin to Voltage-gated Sodium Channels  

E-Print Network (OSTI)

and PHAST gels were from Amersham Biosciences and polyvinylidene fluoride membranes were from BDH Laboratory). The gel was calibrated using standards ranging from 53 to 220 kDa. The 4­15% gradient PHAST acrylamide

Wallace, Bonnie Ann

417

Energetics of Large-Scale Motion in the Tropics During GATE at 250 mb  

Science Conference Proceedings (OSTI)

Use is made of a mixture of observing bases to provide a data set for the global tropics. This data set allows a reasonably good delineation of the tropical motion field at three levels, 200. 250 and 300 mb. An iterative procedure, used to ...

Colin A. Depradine

1980-07-01T23:59:59.000Z

418

Miniaturized electron-impact-ionization pumps using double-gated isolated vertically aligned carbon nanotube arrays  

E-Print Network (OSTI)

There is a need for microscale vacuum pumps that can be readily integrated with other MEMS and electronic components at the chip-scale level. Miniaturized ion pumps exhibit favorable scaling down because they are surface-limited ...

Jayanty, Vivi

2012-01-01T23:59:59.000Z

419

Double-gated isolated vertically aligned carbon nanofiber field emission and field ionization arrays  

E-Print Network (OSTI)

Electron impact ionization (ElI) is used extensively in mass spectrometry for gas-phase analytes. Due to the significant amount of fragmentation generated by ElI, the spectrum is usually very noisy. In addition, the ...

Chen, Liang-Yu, 1979-

2007-01-01T23:59:59.000Z

420

Movement of `gating charge' is coupled to ligand binding in a G-protein-coupled receptor  

E-Print Network (OSTI)

by the demonstration that a depol- arization-induced shift of m2R from high to low affinity has a crucial role

Bezanilla, Francisco

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Just-In-Time Power Gating of GasP Circuits.  

E-Print Network (OSTI)

?? In modern integrated circuits, one way to reduce power consumption is to turn off power to parts of the circuit when those are idle. (more)

Padwal, Prachi Gulab

2013-01-01T23:59:59.000Z

422

All-optical logic gates based on vertical cavity semiconductor optical amplifiers  

E-Print Network (OSTI)

of optical and electrical power requirements, operatingfor optical and electrical power, operating wavelength, and~100m 2 and dissipate ~1mW of electrical power. Using these

Gauss, Veronica Andrea

2009-01-01T23:59:59.000Z

423

Inhibition recruitment in prefrontal cortex during sleep spindles and gating of hippocampal inputs  

E-Print Network (OSTI)

scientific payloads to study celestial gamma ray bursts and X-ray sources. For conduct- ing atmospheric have been high-energy cosmic ray variability using neutron/ meson/Cerenkov monitors, equatorial is likely to carry soft and hard X-ray detectors and imaging payloads, all sky X-ray monitors and a UV

Destexhe, Alain

424

Design and simulation for the fabrication of integrated semiconductor optical logic gates  

E-Print Network (OSTI)

Development of ultrafast all-optical logic requires accurate and efficient modeling of optical components and interfaces. In this research, we present an all-optical logic unit cell with complete Boolean functionality as ...

Markina, Aleksandra, 1977-

2006-01-01T23:59:59.000Z

425

Pulsed X-ray Characterization of Stripline Micro-Channel Plate Gated Imager  

Science Conference Proceedings (OSTI)

We report on characterization of x-ray imaging arrays developed by National Security Technologies, LLC. These devices are based on a microchannel plate (MCP) with a conventional glass microchannel structure, but the top and bottom conductive coatings, rather than covering the entire area, are configured into several (4 to 8) parallel strips. Since the bias voltage is a pulse launched from one end, these operate as striplines; relative delays between these pulses give different active exposure times. Unlike the case of a static bias voltage, non-uniformities in impedance along a stripline will produce spatial fluctuations in the bias voltage. These are expected to be slight, but the very sensitive dependence of gain on voltage - approximately like Vl/4d, where l and d are the length and diameter of the channel - means there may be very significant spatial non-uniformities in gain. Flat-field calibrations are therefore required so that such effects can be unfolded from the raw images if quantitative data is required. Such flat-field and other characterization measurements, e.g. responsivity and linearity, have therefore been done with a flash X-ray radiographic system. The maximum endpoint energy is 500 keV. The duration is {approx}40 ns, and so is essentially flat (temporally) during the MCP stripline transit time, which is a maximum of 600 ps. Spatial variations are significant, but the data are corrected using independent flat-field measurements. A monochromator selects a particular X-ray transition line (typically K{alpha}) of the anode material, so that characterizations can be done for various well-defined input photon energies.

F. J. Goldin, D. V. Morgan, K. J. Moy

2011-03-30T23:59:59.000Z

426

Gate Reliability Assessment for a Spillway Upgrade Design in Queensland, Australia USSD 2006 Conference Page 1  

E-Print Network (OSTI)

was provided by the local power authority, Ergon, and showed an average of 4 unplanned outages per year, which project be cost-effective, rigorously undertaken and highly defensible. Photo 1 Ross River Dam Cut Down about 355m3 /s at the historical flood level of 41.5 m AHD. Consultation with the relevant authorities

Bowles, David S.

427

Nitride Based Insulated Gate Field Effect Transistors Broadband Center, ECSE and Physics, Computer, and Systems  

E-Print Network (OSTI)

for commercialization of GaN based electronics. [1 ] M. Asif Khan, J. N. Kuznia, A. R. Bhattarai, and D. P. Olson, Ga. 281, p.769 (1993) [2 ] M. Asif Khan, Michael S. Shur, Q. C. Chen, and J. N. Kuznia, Current, Bristol, 1995), p.459 [4 ] M. Asif Khan, X. Hu, G. Simin, A. Lunev, and J. Yang, R. Gaska and M. S. Shur

Lü, James Jian-Qiang

428

Generalized microscopic theory of ion selectivity in voltage-gated ion channels  

E-Print Network (OSTI)

Ion channels are specific proteins present in the membranes of living cells. They control the flow of specific ions through a cell, initiated by an ion channel's electrochemical gradient. In doing so, they control important physiological processes such as muscle contraction and neuronal connectivity, which cannot be properly activated if these channels go haywire, leading to life-threatening diseases and psychological disorders. Here, we will develop a generalized microscopic theory of ion selectivity applicable to KcsA, Na$_{\\rm v}$Rh and Ca$_{\\rm v}$ (L-type) ion channels. We unambiguously expose why and how a given ion-channel can be highly selective, and yet has a conductance of the order of one million ions per second, or higher. We will identify and prove the correct physico-biochemical mechanisms that are responsible for the high selectivity of a particular ion in a given ion channel. The above mechanisms consist of five conditions, which can be directly associated to these parameters - (i) dehydration energy, (ii) concentration of the "correct" ions (iii) Coulomb-van-der-Waals attraction, (iv) pore and ionic sizes, and indirectly to (v) the thermodynamic stability and (vi) the "knock-on" assisted permeation.

Andrew Das Arulsamy

2012-09-12T23:59:59.000Z

429

Cumulonimbus Vertical Velocity Events in GATE. Part II: Synthesis and Model Core Structure  

Science Conference Proceedings (OSTI)

The properties of convective drafts and cores are presented in Part I. By our definition a convective updraft must have a positive vertical velocity for 0.5 km, and exceed 0.5 m s?1 for 1 s; a convective updraft core must exceed 1 m s?1 for 0.5 ...

E. J. Zipser; M. A. LeMone

1980-11-01T23:59:59.000Z

430

A Mathematical Model for Voltage Gated Ion-channel Stationary Conductance  

E-Print Network (OSTI)

are LVA and show fast macroscopic inactivation where as L-Type calcium channels are HVAs. 37 #12;-80 -60

Duffy, Ken

431

Chemical Bonding, Interfaces and Defects in Hafnium Oxide/Germanium Oxynitride Gate Stacks on Ge (100)  

SciTech Connect

Correlations among interface properties and chemical bonding characteristics in HfO{sub 2}/GeO{sub x}N{sub y}/Ge MIS stacks were investigated using in-situ remote nitridation of the Ge (100) surface prior to HfO{sub 2} atomic layer deposition (ALD). Ultra thin ({approx}1.1 nm), thermally stable and aqueous etch-resistant GeO{sub x}N{sub y} interfaces layers that exhibited Ge core level photoelectron spectra (PES) similar to stoichiometric Ge{sub 3}N{sub 4} were synthesized. To evaluate GeO{sub x}N{sub y}/Ge interface defects, the density of interface states (D{sub it}) was extracted by the conductance method across the band gap. Forming gas annealed (FGA) samples exhibited substantially lower D{sub it} ({approx} 1 x 10{sup 12} cm{sup -2} eV{sup -1}) than did high vacuum annealed (HVA) and inert gas anneal (IGA) samples ({approx} 1x 10{sup 13} cm{sup -2} eV{sup -1}). Germanium core level photoelectron spectra from similar FGA-treated samples detected out-diffusion of germanium oxide to the HfO{sub 2} film surface and apparent modification of chemical bonding at the GeO{sub x}N{sub y}/Ge interface, which is related to the reduced D{sub it}.

Oshima, Yasuhiro; /Stanford U., Materials Sci. Dept.; Sun, Yun; /SLAC, SSRL; Kuzum, Duygu; /Stanford U.; Sugawara, Takuya; Saraswat, Krishna C.; Pianetta, Piero; /SLAC, SSRL; McIntyre, Paul C.; /Stanford U., Materials Sci. Dept.

2008-10-31T23:59:59.000Z

432

One-Dimensional Time-Dependent Modeling of GATE Cumulonimbus Convection  

Science Conference Proceedings (OSTI)

A one-dimensional time-dependent cumulonimbus model is designed that, unlike in previous one-dimensional models, simulates cloud-top heights, vertical velocities, and water contents that are reasonably consistent with those observed in real ...

Brad Schoenberg Ferrier; Robert A. Houze Jr.

1989-02-01T23:59:59.000Z

433

Amphetamine effects on startle gating in normal women and female rats  

E-Print Network (OSTI)

nucleus accumbens (NAC) catechol-O-methyl transferase (COMT)low activity to the enzyme catechol-O-methyl transferase (

Talledo, Jo A.; Sutherland Owens, Ashley N.; Schortinghuis, Tijmen; Swerdlow, Neal R.

2009-01-01T23:59:59.000Z

434

Survey of Field Programmable Gate Array Design Guides and Experience Relevant to Nuclear Power Plant Applications  

SciTech Connect

From a safety perspective, it is difficult to assess the correctness of FPGA devices without extensive documentation, tools, and review procedures. NUREG/CR-6463, "Review Guidelines on Software Languages for Use in Nuclear Power Plant Safety Systems," provides guidance to the Nuclear Regulatory Commission (NRC) on auditing of programs for safety systems written in ten high-level languages. A uniform framework for the formulation and discussion of language-specific programming guidelines was employed. Comparable guidelines based on a similar framework are needed for FPGA-based systems. The first task involves evaluation of regulatory experience gained by other countries and other agencies, and those captured in existing standards, to identify regulatory approaches that can be adopted by NRC. If existing regulations do not provide a sufficient regulatory basis for adopting relevant regulatory approaches that are uncovered, ORNL will identify the gaps. Information for this report was obtained through publicly available sources such as published papers and presentations. No proprietary information is represented.

Bobrek, Miljko [ORNL; Bouldin, Don [ORNL; Holcomb, David Eugene [ORNL; Killough, Stephen M [ORNL; Smith, Stephen Fulton [ORNL; Ward, Christina D [ORNL

2007-09-01T23:59:59.000Z

435

Synoptic Forcing and Control of Deep Convection on Day 261 of GATE  

Science Conference Proceedings (OSTI)

An evolutionary view is sought Of a single cloud cluster. This cluster was chosen less for intensity than for comprehensive observations. The aim is to describe the principal outside controls on the cluster, including its relationship with nearby ...

David W. Martin; Brian Auvine; David Suchman

1984-10-01T23:59:59.000Z

436

Single-qubit-gate error below 10 in a trapped ion  

Science Conference Proceedings (OSTI)

... computers depends on the ability to accurately control sensitive super- position amplitudes by ... near 1.25 GHz, coupled with a 4-nF capacitor to one ...

2011-10-28T23:59:59.000Z

437

The Second-Moment Climatology of the GATE Rain Rate Data  

Science Conference Proceedings (OSTI)

The first part of this paper presents the description of the GARP (Global Atmospheric Research Program) Atlantic Tropical Experiment 1 rain-rate data and its two-dimensional spectral and correlation characteristics, which have made it possible to ...

Ilya Polyak; Gerald North

1995-04-01T23:59:59.000Z

438

Measurements of Detailed Temperature Profiles within the Radar Range Gate Using the Range Imaging Technique  

Science Conference Proceedings (OSTI)

The present study applies the range imaging (RIM) technique to radio acoustic sounding system (RASS) measurements in an attempt to improve the vertical resolution of temperature profiles obtained by RASS measurements.

Jun-ichi Furumoto; Tomonori Shinoda; Atsushi Matsugatani; Toshitaka Tsuda

2011-01-01T23:59:59.000Z

439

Gas sensor technology at Sandia National Laboratories: Catalytic gate, Surface Acoustic Wave and Fiber Optic Devices  

DOE Green Energy (OSTI)

Sandia`s gas sensor program encompasses three separate electronic platforms: Acoustic Wave Devices, Fiber Optic Sensors and sensors based on silicon microelectronic devices. A review of most of these activities was presented recently in a article in Science under the title ``Chemical Microsensors.`` The focus of the program has been on understanding and developing the chemical sensor coatings that are necessary for using these electronic platforms as effective chemical sensors.

Hughes, R.C.; Moreno, D.J.; Jenkins, M.W.; Rodriguez, J.L.

1993-10-01T23:59:59.000Z

440

Dual microchannel plate module for a gated monochromatic x-ray imager  

SciTech Connect

Development and testing of a dual microchannel plate (MCP) module to be used in the national Inertial Confinement Fusion (ICF) program has recently been completed. The MCP module is a key component of a new monochromatic x-ray imaging diagnostic which is designed around a 4 channel Kirkpatrick-Baez microscope and diffraction crystals which is located at University of Rochester`s Omega laser system. The MCP module has two separate MCP regions with centers spaced 53 mm apart. Each region contains a 25 mm MCP proximity focused to a P-11 phosphor coated fiberoptic faceplate. The two L/D = 40, MCPs have a 10.2 mm wide, 8 ohm stripline constructed of 500 nm Copper overcoated with 100 nm Gold. A 4 kV, 150 ps electrical pulse provides an optical gatewidth of 80 ps and spatial resolution has been measured at 20 1p/mm.

Oertel, J.A.; Archuleta, T.; Peterson, C.G. [and others

1996-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

Incorporating Voltage Fluctuations of the Power Distribution Network into the Transient Analysis of CMOS Logic Gates  

Science Conference Proceedings (OSTI)

Decreased power supply levels have reduced the tolerance to voltage changes within power distribution networks in CMOS integrated circuits. High on-chip currents, required to charge and discharge large on-chip loads while operating at high frequencies, ... Keywords: IR drops, power distribution network, system-on-a-chip

Kevin T. Tang; Eby G. Friedman

2002-05-01T23:59:59.000Z

442

The Impact of Pipelining on Energy per Operation in Field-Programmable Gate Arrays  

E-Print Network (OSTI)

in British Columbia to guide for- est management based on the natural disturbance template. Specific guidance available. Within northeast- ern British Columbia, a number of studies have investigated particular aspects disturbance-based management in northern British Columbia by S. Craig DeLong1 ABSTRACT Ecologically based

Wilton, Steve

443

The impact of pipelining on energy per operation in field-programmable gate arrays  

E-Print Network (OSTI)

Abstract. This paper investigates experimentally the quantitative impact of pipelining on energy per operation for two representative FPGA devices: a 0.13m CMOS high density/high speed FPGA (Altera Stratix EP1S40), and a 0.18m CMOS low-cost FPGA (Xilinx XC2S200). The results are obtained by both measurements and execution of vendor-supplied tools for power estimation. It is found that pipelining can reduce the amount of energy per operation by between 40 % and 90%. Further reduction in energy consumption can be achieved by power-aware clustering, although the effect becomes less pronounced for circuits with a large number of pipeline stages. 1.

Steven J. E. Wilton; Su-shin Ang; Wayne Luk

2004-01-01T23:59:59.000Z

444

Assessing the Effect of Mercury Emissions from Contaminated Soil at Natural Gas Gate Stations  

Science Conference Proceedings (OSTI)

The effect of mercury emissions from contaminated soil at natural gas distribution stations is presented. The effects were estimated as part of a risk assessment that included inhalation and multimedia exposure pathways. The purpose of the paper ...

A. Roffman; K. Macoskey; R. P. Shervill

1995-03-01T23:59:59.000Z

445

Field Emission Cathode Gating for RF Electron Guns (IN-04-039)  

Scientists at Argonne National Laboratory have created an innovative way to enhance the performance of radio frequency (RF) electron guns: a method of ...

446

The Brandenburg Gates : unity, division, and reinvented tradition in post-wall Berlin  

E-Print Network (OSTI)

Twenty three years after the German Reunification (German: Deutsche Wiedervereinigung), the once divided Berlin is still undergoing a process of recovery from the deep political, social, cultural, and physical divisions ...

Ayyash, Dima

2013-01-01T23:59:59.000Z

447

Halogen-Based Plasma Etching of Novel Field-Effect Transistor Gate Materials  

E-Print Network (OSTI)

and W. Gerhardt, Zur Chemie Der Platinmetalle - Ruo2Anorganische Und Allgemeine Chemie, 1963. 319(5-6): p. 327-A. Tebben, and W. Gerhardt, Zur Chemie Der Platinmetalle .5.

Kiehlbaugh, Kasi Michelle

2009-01-01T23:59:59.000Z

448

L3, Fabrication of Top-Gated Sub-10 nm Epitaxial Graphene ...  

Science Conference Proceedings (OSTI)

HSQ lines (width ~10 nm) on graphene were fabricated and then the HSQ line .... Electroluminescent Devices with a Low Turn-on Voltage and High Brightness.

449

Self-powered Gating and Other Improvements for Screening-engineered Field-effect Photovoltaics  

IB-3094 Berkeley Lab scientists Alex Zettl and William Regan have developed a straightforward technology that enables fabrication of high efficiency, single junction photovoltaic (PV) cells from inexpensive, abundant, and nontoxic materialsnotably ...

450

A Modeling Study on the Fair Weather Marine Boundary Layer of the GATE  

Science Conference Proceedings (OSTI)

A three-dimensional ensemble-mean atmospheric model, with simplified second-moment turbulence closure equations and a statistical treatment for the condensation process, is used to simulate a fair weather marine boundary layer observed during the ...

T. Yamada; C-Y. J. Kao

1986-12-01T23:59:59.000Z

451

Inside the Castle Gates: How Foreign Corporations Nagivate Japan's Policymaking Processes  

E-Print Network (OSTI)

Management at Nissan and Toyota. Cambridge, Mass. : Councilcontrol. With the exception of Toyota and Honda, almost allToyoda (the forerunner of Toyota) and Nissan. In 1937, Ford

Kushida, Kenji Erik

2010-01-01T23:59:59.000Z

452

Power-Delay Optimizations in Gate Sizing 1 Sachin S. Sapatnekar  

E-Print Network (OSTI)

-circuit power. Since real-life waveforms have nonzero transition times, the short-circuit power could have-circuit power during the output falling transition. Therefore, as wn or wp increase, the short-circuit power on the short circuit power as compared to wp is larger than for the output falling transition. This is also

Sapatnekar, Sachin

453

HH8, Characterization of Thin InAlP Native Oxide Gate Dielectric ...  

Science Conference Proceedings (OSTI)

DD3, A New Approach to Make ZnO-Cu2O Heterojunctions for Solar Cells ... E2, AlGaAs/GaAs/GaN Wafer Fused HBTs with Ar Implanted Extrinsic Collectors.

454

Stress evolution during Ni-Si compound formation for fully silicided (FUSI) gates  

Science Conference Proceedings (OSTI)

The stress (force) evolution during the formation of different Ni silicide phases was monitored by in situ curvature measurements, for the reaction of thin Ni films of various thicknesses with 100nm polycrystalline-Si deposited on oxidized (100) Si substrates. ... Keywords: In situ XRD, In situ curvature measurements, Ni-silicides

C. Torregiani; C. Van Bockstael; C. Detavernier; C. Lavoie; A. Lauwers; K. Maex; J. A. Kittl

2007-11-01T23:59:59.000Z

455

Molecular gating dynamics of the cytoplasmic domains of inwardly rectifying potassium (Kir) channels  

E-Print Network (OSTI)

and the staff at ALS and SSRL for X-ray data collection.We thank ALS and SSRL for X-ray data collection. This work= 76.36 b = 76.37 c = 92.16 SSRL a R sym =? h ? 1 |I 1 (h) -

Pegan, Scott Dusan

2006-01-01T23:59:59.000Z

456

Metal nano-floating gate memory devices fabricated at low temperature  

Science Conference Proceedings (OSTI)

In this communication, we report on the realization of low-temperature processed Electrically Erasable Programmable Read-Only Memory (EEPROM) like device with embedded gold nanoparticles. The realization is based on the fabrication of a V-groove SiGe ... Keywords: Hybrid electronics, Langmuir-Blodgett deposition, Memory, Nanoparticles, SiGe, Wafer bonding

S. Koliopoulou; P. Dimitrakis; D. Goustouridis; P. Normand; C. Pearson; M. C. Petty; H. Radamson; D. Tsoukalas

2006-04-01T23:59:59.000Z

457

Gentle FUSI NiSi metal gate process for high-k dielectric screening  

Science Conference Proceedings (OSTI)

In this paper, a process flow well suited for screening of novel high-k dielectrics is presented. In vacuo silicon capping of the dielectrics excludes process and handling induced influences especially if hygroscopic materials are investigated. A gentle, ... Keywords: FUSI NiSi, High-k, Material screening, Ultrathin dielectric

H. D. B. Gottlob; M. C. Lemme; M. Schmidt; T. J. Echtermeyer; T. Mollenhauer; H. Kurz; K. Cherkaoui; P. K. Hurley; S. B. Newcomb

2008-10-01T23:59:59.000Z

458

Ravel-XL: a hardware accelerator for assigned delay compiled-code logic gate simulation  

Science Conference Proceedings (OSTI)

Keywords: design verification, digital logic simulation, hardware accelerators, levelized compiled code, simulation engines, special purpose architectures, timing analysis

Michael A. Riepe; Joo P. Marques Silva; Karem A. Sakallah; Richard B. Brown

1996-03-01T23:59:59.000Z

459

Minimizing leakage: what if every gate could have its individual threshold voltage?  

Science Conference Proceedings (OSTI)

Designers aim at fast but low-power consuming integrated circuits. Since high processing speed always comes with high energy demands, the literature provides several ways to reduce a circuit's power dissipation. Even though technologically not possible ... Keywords: genetic algorithms, low-power VLSI, optimization, real-world application

Ralf Salomon; Frank Sill; Dirk Timmermann

2007-02-01T23:59:59.000Z

460

A capture-gated neutron calorimeter using plastic scintillators and 3He drift tubes  

SciTech Connect

A segmented neutron calorimeter using nine 4-inch x 4-inch x 48-inch plastic scintillators and sixteen 2-inch-diameter 48-inch-long 200-mbar-{sup 3}He drift tubes is described. The correlated scintillator and neutron-capture events provide a means for n/{gamma} discrimination, critical to the neutron calorimetry when the {gamma} background is substantial and the {gamma} signals are comparable in amplitude to the neutron signals. A single-cell prototype was constructed and tested. It can distinguish between a {sup 17}N source and a {sup 252}Cf source when the {gamma} and the thermal neutron background are sufficiently small. The design and construction of the nine-cell segmented detector assembly follow the same principle. By recording the signals from individual scintillators, additional {gamma}-subtraction schemes, such as through the time-of-flight between two scintillators, may also be used. The variations of the light outputs from different parts of a scintillator bar are less than 10%.

Wang, Zhehui [Los Alamos National Laboratory; Morris, Christopher L [Los Alamos National Laboratory; Spaulding, Randy J [Los Alamos National Laboratory; Bacon, Jeffrey D [Los Alamos National Laboratory; Borozdin, Konstantin N [Los Alamos National Laboratory; Chung, Kiwhan [Los Alamos National Laboratory; Clark, Deborah J [Los Alamos National Laboratory; Green, Jesse A [Los Alamos National Laboratory; Greene, Steven J [Los Alamos National Laboratory; Hogan, Gary E [Los Alamos National Laboratory; Jason, Andrew [Los Alamos National Laboratory; Lisowski, Paul W [Los Alamos National Laboratory; Makela, Mark F [Los Alamos National Laboratory; Mariam, Fessaha G [Los Alamos National Laboratory; Miyadera, Haruo [Los Alamos National Laboratory; Murray, Matthew M [Los Alamos National Laboratory; Saunders, Alexander [Los Alamos National Laboratory; Wysocki, Frederick J [Los Alamos National Laboratory; Gray, Frederick E [REGIS UNIV.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "l-lake sluice gate" 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

C-Terminal Movement During Gating in Cyclic Nucleotide-Modulated Channels  

Science Conference Proceedings (OSTI)

Activation of cyclic nucleotide-modulated channels such as CNG and HCN channels is promoted by ligand-induced conformational changes in their C-terminal regions. The primary intersubunit interface of these C termini includes two salt bridges per subunit, formed between three residues (one positively charged and two negatively charged amino acids) that we term the SB triad. We previously hypothesized that the SB triad is formed in the closed channel and breaks when the channel opens. Here we tested this hypothesis by dynamically manipulating the SB triad in functioning CNGA1 channels. Reversing the charge at positions Arg-431 and Glu-462, two of the SB triad residues, by either mutation or application of charged reagents increased the favorability of channel opening. To determine how a charge reversal mutation in the SB triad structurally affects the channel, we solved the crystal structure of the HCN2 C-terminal region with the equivalent E462R mutation. The backbone structure of this mutant was very similar to that of wild type, but the SB triad was rearranged such that both salt bridges did not always form simultaneously, suggesting a mechanism for the increased ease of opening of the mutant channels. To prevent movement in the SB triad, we tethered two components of the SB triad region together with cysteine-reactive cross-linkers. Preventing normal movement of the SB triad region with short cross-linkers inhibited channel opening, whereas longer cross-linkers did not. These results support our hypothesis that the SB triad forms in the closed channel and indicate that this region expands as the channel opens.

Craven, K.; Olivier, N; Zagotta, W

2008-01-01T23:59:59.000Z

462

Gated-Vdd: a circuit technique to reduce leakage in deep-submicron cache memories  

Science Conference Proceedings (OSTI)

Deep-submicron CMOS designs have resulted in large leakage energy dissipation in microprocessors. While SRAM cells in on-chip cache memories always contribute to this leakage, there is a large variability in active cell usage both within ...

Michael Powell; Se-Hyun Yang; Babak Falsafi; Kaushik Roy; T. N. Vijaykumar

2000-08-01T23:59:59.000Z

463

The Smart vs. The Hardworking: The Academic Self-Concepts of Mexican Descent GATE students  

E-Print Network (OSTI)

and essays, learning material quickly and easily, and engaging class material in a productive and creative

Medrano, Catherine R

2008-01-01T23:59:59.000Z

464

Student paper Effects of Gate Recess Depth on Pulsed I-V Characteristics  

E-Print Network (OSTI)

. An elkclive trap time constant of 10 usec is extracted for these devices. AIGaN/GaN HFETs have been under

Asbeck, Peter M.

465

U-16: Scaling Down High-k Gate Dielectrics for Graphene-Based ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2012 TMS Annual Meeting & Exhibition. Symposium , 2012 Functional and Structural Nanomaterials: Fabrication, Properties,...

466

F3, A Comparative Study of Thermal and Deposited Gate Oxides on ...  

Science Conference Proceedings (OSTI)

Thermal oxidation processes consisted of dry oxidation at 1175C followed by an .... Microstructure and Properties of Colloidal ITO Films and Cold-Sputtered ITO Films .... Graphene Produced from Ion Implanted Semi-Insulating Silicon Carbide.

467

Regulation of ClpP : role of substrate gating and activation by ClpX  

E-Print Network (OSTI)

AAA+ self-compartmentalized proteases are an important class of proteome regulators that operate to selectively degrade protein substrates. All of these enzymes share the architectural theme of a hexameric ring unfoldase ...

Lee, Mary Elizabeth, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

468

Automatic Design of Binary and Multiple-Valued Logic Gates on RTD Series  

E-Print Network (OSTI)

In this paper, we contribute to the binary and multiplevalued applications of resonant tunneling devices (RTDs). We propose a method of systematic design of physical parameters of RTD based logic. From the abstraction of their behavior, we model the design space as a handful of systems of linear inequalities generated for a given circuit topology and an arbitrary logic function. Any valid solution reflects the physical parameters assignment that implements the function given. We solve these systems using off-theshelf optimization tool and verify the results using SystemC based RTD circuit model. Our simulations confirm, that the numerical solutions are valid parameter assignments.

Krzysztof S. Berezowski; et al.

2005-01-01T23:59:59.000Z

469

The Accelerated Site Technology Deployment Program/Segmented Gate System Project  

Science Conference Proceedings (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. Funding is provided through the ASTD Program to assist participating site managers in implementing innovative technologies. The program provides technical assistance to the participating DOE sites by coordinating DOE, industry, and regulatory participation in each project; providing finds for optimizing full-scale operating parameters; coordinating technology performance monitoring; and by developing cost and performance reports on the technology applications.

PATTESON,RAYMOND

2000-09-18T23:59:59.000Z

470

The Origin of African Wave Disturbances during Phase III of GATE  

Science Conference Proceedings (OSTI)

Spectrum and cross-spectrum analysis are used to determine the source region of the waves observed during the period 23 August19 September 1974. The spectra are based on time series of 6 h wind observations at 850 and 700 mb for 72 and 55 land ...

Jean Pierre Albignat; Richard J. Reed

1980-11-01T23:59:59.000Z

471

Economical design of gate-commutated inverters for the grid-tied distributed generators  

Science Conference Proceedings (OSTI)

The cost-effectiveness of small distributed generating resources is vital to the success of the high penetration of distributed generators within the microgrid concept. A common mechanism is the use of highly efficient inverters following the electrical storage systems. In this paper

Mujahidul Islam; Adedamola Omole; Arif Islam; Alexander Domijan Jr.

2011-01-01T23:59:59.000Z

472

Collapse for Higher Gate Voltages in N-Polar GaN  

Science Conference Proceedings (OSTI)

L6, PECVD-SiN, Si or Si/Al2O3-Capped ED-Mode AlN/GaN Inverters Hide details for [

473

A study of the robustness of magic state distillation against Clifford gate faults.  

E-Print Network (OSTI)

??Quantum error correction and fault-tolerance are at the heart of any scalable quantum computation architecture. Developing a set of tools that satisfy the requirements of (more)

Jochym-O'Connor, Tomas Raphael

2012-01-01T23:59:59.000Z

474

Project management plan for Waste Area Grouping 5 Old Hydrofracture Facility tanks contents removal at Oak Ridge National Laboratory, Oak Ridge, Tennessee  

SciTech Connect

This revision (Rev. 1) updates the schedule and designation of responsibilities for the Old Hydrofracture Facility (OHF) tanks contents removal project. Ongoing and planned future activities include: cold testing of the sluicing and pumping system; readiness assessment; equipment relocation and assembly; isotopic dilution of fissile radionuclides; sluicing and transfer of the tanks contents; and preparation of the Removal Action Completion Report. The most significant change is that the sluicing and pumping system has been configured by and will be operated by CDM Federal Programs Corporation. In addition, a new technical lead and a new project analyst have been designated within Lockheed Martin Energy Systems, Inc. and Lockheed Martin Energy Research Corp. The schedule for tanks contents removal has been accelerated, with transfer of the final batch of tank slurry now scheduled for March 31, 1998 (instead of November 10, 1998). The OHF sluicing and pumping project is proceeding as a non-time-critical removal action under the Comprehensive Environmental Response, Compensation, and Liability Act. The purpose of the project is to remove the contents from five inactive underground storage tanks, designated T-1, T-2, T-3, T-4, and T-9. The tanks contain an estimated 52,700 gal of liquid and sludge, together comprising a radioactive inventory of approximately 30,000 Ci.

1998-02-01T23:59:59.000Z

475

Sludge mobilization with submerged nozzles in horizontal cylindrical tanks  

SciTech Connect

The Melton Valley Storage Tanks (MVSTs) and the evaporator service tanks at the Oak Ridge National Laboratory (ORNL) are used for the collection and storage of liquid low-level waste (LLLW). Wastes collected in these tanks are typically acidic when generated and are neutralized with sodium hydroxide to protect the tanks from corrosion; however, the high pH of the solution causes the formation of insoluble compounds that precipitate. These precipitates formed a sludge layer approximately 0.6 to 1.2 m (2 to 4 ft) deep in the bottom of the tanks. The sludge in the MVSTs and the evaporator service tanks will eventually need to be removed from the tanks and treated for final disposal or transferred to another storage facility. The primary options for removing the sludge include single-point sluicing, use of a floating pump, robotic sluicing, and submerged-nozzle sluicing. The objectives of this study were to (1) evaluate the feasibility of submerged-nozzle sluicing in horizontal cylindrical tanks and (2) obtain experimental data to validate the TEMPEST (time-dependent, energy, momentun, pressure, equation solution in three dimensions) computer code.

Hylton, T.D.; Cummins, R.L.; Youngblood, E.L.; Perona, J.J.

1995-10-01T23:59:59.000Z

476

EA-1070: Revised Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

70: Revised Finding of No Significant Impact 70: Revised Finding of No Significant Impact EA-1070: Revised Finding of No Significant Impact Natural Fluctuation of Water Level in Par Pond and Reduced Water Flow in Steel Creek below L Lake at the Savannah River Site The Department of Energy (DOE) has prepared an environmental assessment (EA) for the proposed natural fluctuation of water level in Par Pond, and reduced water flow in Steel Creek below L Lake at the Savannah River Site near Aiken, South Carolina. Based on analyses in the EA, DOE determined that the proposed action was not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act. Revised Finding of No Significant Impact for the Natural Fluctuation of Water Level in Par Pond and Reduced Water Flow in Steel Creek below L Lake

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VI. Dam and Raceway Some discussion of the dam gate valve has already taken place. As mentioned earlier, the  

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type of grain. Primarily, the grinding of wheat for whole-wheat flour and corn for cornmeal or grits. Soft winter wheat will be sufficient to make whole wheat flour. In addition, buckwheat in small to purchase yellow corn that has been cleaned through a separator. Cleaned wheat can also be obtained locally

Beex, A. A. "Louis"

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Cyclic Nucleotide-Gated Channels Contribute to Thromboxane A2-Induced Contraction of Rat Small Mesenteric Arteries  

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Background: Thromboxane A 2 (TxA 2)-induced smooth muscle contraction has been implicated in cardiovascular, renal and respiratory diseases. This contraction can be partly attributed to TxA2-induced Ca 2+ influx, which resulted in vascular contraction via Ca 2+-calmodulin-MLCK pathway. This study aims to identify the channels that mediate TxA2-induced Ca 2+ influx in vascular smooth muscle cells. Methodology/Principal Findings: Application of U-46619, a thromboxane A2 mimic, resulted in a constriction in endothelium-denuded small mesenteric artery segments. The constriction relies on the presence of extracellular Ca 2+, because removal of extracellular Ca 2+ abolished the constriction. This constriction was partially inhibited by an L-type Ca 2+ channel inhibitor nifedipine (0.51 mM). The remaining component was inhibited by L-cis-diltiazem, a selective inhibitor for CNG channels, in a dose-dependent manner. Another CNG channel blocker LY83583 [6-(phenylamino)-5,8-quinolinedione] had similar effect. In the primary cultured smooth muscle cells derived from rat aorta, application of U46619 (100 nM) induced a rise in cytosolic Ca 2+ ([Ca 2+]i), which was inhibited by L-cis-diltiazem. Immunoblot experiments confirmed the presence of CNGA2 protein in vascular smooth muscle cells. Conclusions/Significance: These data suggest a functional role of CNG channels in U-46619-induced Ca 2+ influx and contraction of smooth muscle cells.

Yuk Ki Leung; Juan Du; Yu Huang; Xiaoqiang Yao

2010-01-01T23:59:59.000Z

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In this work we consider battery powered portable systems which either have Field Programmable Gate Arrays (FPGA)  

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Abstract In this work we consider battery powered portable systems which either have Field-point for each task, such that a deadline is met and the amount of battery energy used is as small as possible controller which demonstrates the usefulness of our algorithm is also presented. 1. Introduction Battery

Paris-Sud XI, Université de