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


1

Measurements of the volt-ampere characteristics and the breakdown voltages of direct-current helium and hydrogen discharges in microgaps  

SciTech Connect (OSTI)

The discharge phenomena for micro meter gap sizes include many interesting problems from engineering and physical perspectives. In this paper, the authors deal with the experimental and theoretical results of the breakdown voltage and current-voltage characteristics of the direct-current helium and hydrogen discharges. The measurements were performed at a constant pressure of around one atmosphere, while varying the gap size between two parallel plane tungsten electrodes between 1??m and 100??m. From the measured breakdown voltage curves, the effective yields and the ionization coefficients were derived for both gases. Present data for the ionization coefficients correlate with the data obtained for the breakdown voltage curves measured for fixed 100??m interelectrode separation. The current-voltage characteristics were plotted for the various gap sizes illustrating the role of the field emission effects in the microgaps. Based on the Fowler-Nordheim theory, the enhancement factors were determined. The gap spacing dependence of the field emission current can be explained by the introduction of two ideas, the first being a space charge effect by emitted electrons, and the second a change in the breakdown mechanism. Experimental results, presented here, demonstrate that Townsend phenomenology breaks down when field emission becomes the key mechanism affecting the breakdown and deforming the left hand side of the breakdown voltage curves.

Klas, M.; Matej?ik, Š. [Department of Experimental Physics, Comenius University, Mlynskadolina F2, 84248 Bratislava (Slovakia); Radjenovi?, B.; Radmilovi?-Radjenovi?, M. [Institute of Physics, University of Belgrade, P.O. Box 57, 11080 Belgrade (Serbia)

2014-10-15T23:59:59.000Z

2

Definition: Direct current | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Direct current Jump to: navigation, search Dictionary.png Direct current A type of electricity transmission and distribution by which electricity flows in one direction through the conductor, usually relatively low voltage and high current (such as from a battery). To be used for typical 120 volt or 220 volt household appliances, DC must be converted to alternating current (AC).[1][2] View on Wikipedia Wikipedia Definition Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by sources such as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow

3

Hybrid high direct current circuit interrupter  

DOE Patents [OSTI]

A device and a method are disclosed for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens. 7 figs.

Rockot, J.H.; Mikesell, H.E.; Jha, K.N.

1998-08-11T23:59:59.000Z

4

Hybrid high direct current circuit interrupter  

DOE Patents [OSTI]

A device and a method for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens.

Rockot, Joseph H. (N. Huntingdon, PA); Mikesell, Harvey E. (McMurray, PA); Jha, Kamal N. (Bethel Park, PA)

1998-01-01T23:59:59.000Z

5

Chevrolet Volt Vehicle Demonstration  

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

Volt Vehicle Demonstration Fleet Summary Report Reporting period: January 2013 through March 2013 Number of vehicles: 146 Number of vehicle days driven: 6,680 4292013 2:38:13 PM...

6

4160 Volt .pdf  

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

" " ~, U.S. Department of Energy Naval Reactors laboratory Field Office Knolls Laboratory National Environmental Policy Act (NEPA) Categorical Exclusion (CX) Determination Summary Form 4160 Volt Upgrade Project REFERENCE: 10 CFR Part 1021 , Department of Energy National Environmental Policy Act Implementation Procedures, Subpart 0 , Typical Classes of Actions PROJECT SCOPE DISCUSSION The scope of 4160 Volt Upgrade Project is to make significant improvements to the 4160 Volt power distribution system at the Knolls Laboratory by replacing antiquated (60 year old) switchgear and cabling located in the Z4 high yard with new state-of-the-art equipment. The new switch gear will be located in the NW corner of the existing Z8 High Yard. In addition to

7

Load Impedance as a Function of Power Input in 70-Volt, 100-Volt, and 25-Volt Distribution Systems  

Science Journals Connector (OSTI)

Distributed loudspeaker systems often make use of 70-volt or 100-volt distribution methods. In a 70-volt system, the full power of the amplifier, whatever it might be, is always available at 70 volts rms. By m...

John M. Eargle

2002-01-01T23:59:59.000Z

8

HydroVolts | Open Energy Information  

Open Energy Info (EERE)

HydroVolts HydroVolts Jump to: navigation, search Name HydroVolts Address 2815 Eastlake Ave E Place Seattle, Washington Zip 98102 Sector Hydro Product Aims to develop renewable energy from canals, waterways, streams, and ocean currents Website http://www.hydrovolts.com/ Coordinates 47.645778°, -122.3257532° 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":47.645778,"lon":-122.3257532,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

9

Sky Volt | Open Energy Information  

Open Energy Info (EERE)

Volt Volt Jump to: navigation, search Name Sky Volt Facility Sky Volt Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Sky Volt LLC (community owned) Energy Purchaser City of Greenfield - excess to Central Iowa Power Cooperative Location Greenfield IA Coordinates 41.29038343°, -94.48851585° 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":41.29038343,"lon":-94.48851585,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

10

Current Direct Neutrino Mass Experiments  

E-Print Network [OSTI]

In this contribution we review the status and perspectives of direct neutrino mass experiments. These experiments investigate the kinematics of $\\beta$-decays of specific isotopes ($^3$H, $^{187}$Re, $^{163}$Ho) to derive model-independent information on the averaged electron (anti-) neutrino mass, which is formed by the incoherent sum of the neutrino mass eigenstates contributing to the electron neutrino. We first review the kinematics of $\\beta$-decay and the determination of the neutrino mass, before giving a brief overview of past neutrino mass measurements (SN1987a-ToF studies, Mainz and Troitsk experiments for $^3$H, cryo-bolometers for $^{187}$Re). We then describe the Karlsruhe Tritium Neutrino (KATRIN) experiment which is currently under construction at Karlsruhe Institute of Technology. The large-scale setup will use the MAC-E-Filter principle pioneered earlier to push the sensitivity down to a value of 200 meV(90% C.L.). KATRIN faces many technological challenges that have to be resolved with regar...

Drexlin, G; Mertens, S; Weinheimer, C

2013-01-01T23:59:59.000Z

11

GreenVolts Inc | Open Energy Information  

Open Energy Info (EERE)

Name: GreenVolts Inc Place: San Francisco, California Zip: 94105 Product: US-based manufacturer of concentrating PV (CPV). References: GreenVolts Inc1 This article is a stub....

12

Sandia National Laboratories: HelioVolt  

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

Regional Testing Center (PV RTC), Renewable Energy, Solar, Solar Newsletter, SunShot HelioVolt, Sandia National Laboratories, the National Renewable Energy Laboratory,...

13

Ocean indicators Current knowledge and future directions  

E-Print Network [OSTI]

Ocean indicators Current knowledge and future directions Brian Burke, NOAA Fisheries Brian.Burke@noaa.gov #12;· Review of ocean indicator work · Forecasting · Indicator gaps and the importance of mechanistic understanding · Plugging in to management #12;Haeseker et al. 2012 Ocean survival is low and variable #12;-10 -5

14

Current Directions in Freight and Logistics Industry  

E-Print Network [OSTI]

Current Directions in Freight and Logistics Industry CTS Freight and Logistics Symposium November- the-box #12;Perspective Be sure to look-up from time-to-time #12;Why Discuss Freight and Logistics....Large Part of the Economy Logistics Cost As A Percent of GDP ­ 10% Source: CSCMP State of Logistics 2007 #12

Minnesota, University of

15

Soft-commutated direct current motor  

DOE Patents [OSTI]

A method and circuit is disclosed for soft-commutation of a direct current (DC) motor. An attenuation circuit is connected through auxiliary brushes A, A[prime], B and B[prime] to the commutator (16) to drain circuit from successive armature coils (15) before the main brushes (27, 28) disconnects from each of the coils (15). This prevents the spark generation that normally occurs in conventional DC motors. The attenuation circuit may also be connected before energization of the coil (15) for a soft turning on operation. 13 figs.

Hsu, J.S.

1999-07-27T23:59:59.000Z

16

2011 Chevrolet Volt EREV Accelerated Testing - June 2013  

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

Chevrolet Volt EREV Accelerated Testing - June 2013 Two model year 2011 Chevrolet Volt extended range electric vehicles (EREVs) entered Accelerated testing during March 2011 in a...

17

GreenVolts | Open Energy Information  

Open Energy Info (EERE)

GreenVolts GreenVolts Jump to: navigation, search Logo: GreenVolts Name GreenVolts Address 50 First Street Place San Francisco, California Zip 94105 Sector Solar Product PV developer Website http://www.greenvolts.com/ Coordinates 37.790153°, -122.398669° 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":37.790153,"lon":-122.398669,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

18

HelioVolt Corporation | Open Energy Information  

Open Energy Info (EERE)

HelioVolt Corporation HelioVolt Corporation Jump to: navigation, search Name HelioVolt Corporation Place Austin, Texas Zip TX 78744 Product Copper indium gallium selenide (CIGS) thin-film PV module manufacturer based in Austin, Texas. Website http://www.heliovolt.net/ Coordinates 30.267605°, -97.742984° 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":30.267605,"lon":-97.742984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

19

Nissan Leafs and Chevrolet Volts Reporting Data in The EV Project  

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

Knoxville 88 Leafs 17 Volts DC 7 Leafs 177 Volts San Diego 657 Leafs 153 Volts 300 Smart Electric Drives Tucson 79 Leafs 7 Volts Chattanooga 50 Leafs 11 Volts Copyright: 2009...

20

AVTA: Chevrolet Volt 2013 Testing Results  

Broader source: Energy.gov [DOE]

The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following reports describe results of testing done on a 2013 Chevrolet Volt. Baseline and battery testing data collected at Argonne National Laboratory is available in summary and CSV form on the Argonne Downloadable Dynometer Database site (http://www.transportation.anl.gov/D3/2013_chevy_volt_phev.html). The reports for download here are based on research done at Idaho National Laboratory. Taken together, these reports give an overall view of how this vehicle functions under extensive testing.

Note: This page contains sample records for the topic "volt direct current" 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

Direct-Current Resistivity Survey At Mauna Loa Northeast Rift...  

Open Energy Info (EERE)

Mauna Loa Northeast Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Mauna Loa...

22

Direct-Current Resistivity At Cove Fort Area - Liquid (Warpinski...  

Open Energy Info (EERE)

Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Cove Fort Area - Liquid (Warpinski, Et...

23

A High Voltage Direct Current Generator  

Science Journals Connector (OSTI)

When powdered materials are blown through metal tubes by means of compressed air considerable quantities of electricity are produced by contact electrification. It was found that 6×10-5 coulombs could be produced per gram of diatomaceous earth, a form of silica, blown through a short length of copper tube. A generator of extremely high voltage is proposed, and a small scale model of such a generator is described, by means of which currents of 8×10-5 amperes at 260 kilovolts were generated.

Richard E. Vollrath

1932-10-15T23:59:59.000Z

24

Chevy Volt Electrifies DOE Headquarters | Department of Energy  

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

Chevy Volt Electrifies DOE Headquarters Chevy Volt Electrifies DOE Headquarters Chevy Volt Electrifies DOE Headquarters December 9, 2010 - 7:05pm Addthis Dennis A. Smith Director, National Clean Cities Yesterday, Department of Energy staff members were able to experience the newest in market-ready vehicle technology when representatives from General Motors brought two Chevy Volts to Department headquarters. Officials and engineers alike, including the Department's Chief Financial Officer, Steve Isakowitz, test drove the Volt, and peppered the GM representatives with questions about the new plug-in hybrid electric vehicle. Unlike an all-electric vehicle (EV), the Volt has a gasoline engine that supplements the electric drive once the battery is depleted. The Chevrolet Volt will reach an estimated 93 mpg-equivalent when running on all-electric

25

Nissan Leafs and Chevrolet Volts Reporting Data in The EV Project...  

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

898 Leafs 164 Volts Oregon 541 Leafs 133 Volts 30 Smart Electric Drives San Francisco 1708 Leafs Los Angeles 424 Leafs 338 Volts Chicago 26 Leafs 129 Volts Atlanta 153 Leafs 75...

26

Category:Direct-Current Resistivity Survey | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Direct-Current Resistivity Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Direct-Current Resistivity Survey page? For detailed information on Direct-Current Resistivity Survey as exploration techniques, click here. Category:Direct-Current Resistivity Survey Add.png Add a new Direct-Current Resistivity Survey Technique Subcategories This category has the following 2 subcategories, out of 2 total. E [×] Electrical Profiling Configurations‎ 3 pages V [×] Vertical Electrical Sounding Configurations‎ 2 pages

27

Direct-Current Resistivity Survey | Open Energy Information  

Open Energy Info (EERE)

Direct-Current Resistivity Survey Direct-Current Resistivity Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Direct-Current Resistivity Survey Details Activities (65) Areas (34) Regions (4) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Techniques Information Provided by Technique Lithology: Rock type, mineral and clay content may be inferred. Stratigraphic/Structural: Determination of fracture zones, faults, depth to groundwater aquifers. Hydrological: Resistivity influenced by porosity, permeability, fluid saturation, fluid type and phase state of the pore water. Thermal: Resistivity influenced by temperature.[1] Cost Information

28

Direct-Current Resistivity At Blue Mountain Area (Fairbank Engineering,  

Open Energy Info (EERE)

Direct-Current Resistivity At Blue Mountain Area (Fairbank Engineering, Direct-Current Resistivity At Blue Mountain Area (Fairbank Engineering, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Blue Mountain Area (Fairbank Engineering, 2005) Exploration Activity Details Location Blue Mountain Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Geophysical surveys that have been conducted specifically for the geothermal program at Blue Mountain include a self-potential (SP) survey, and additional IP/electrical resistivity traversing. These surveys were conducted under a cooperative program between Noramex Corporation and the Energy and Geosciences Institute (EGI), University of Utah, with funding

29

Soft commutated direct current motor [summary of proposed paper  

SciTech Connect (OSTI)

A novel soft commutated direct current (DC) motor is introduced. The current of the commutated coil is intentionally drained before the brush disconnects the coil. This prevents the spark generation that normally occurs in conventional DC motors. A similar principle can be applied for DC generators.

Hsu, John S.

1998-10-22T23:59:59.000Z

30

HelioVolt Inc | Open Energy Information  

Open Energy Info (EERE)

Inc Inc Jump to: navigation, search Name HelioVolt Inc Address 8201 E. Riverside Dr Place Austin, Texas Zip 78744 Sector Solar Product Thin-film solar panel producer Website http://www.heliovolt.net/ Coordinates 30.216908°, -97.685078° 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":30.216908,"lon":-97.685078,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

31

Definition: Direct-Current Resistivity Survey | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Definition Edit with form History Facebook icon Twitter icon » Definition: Direct-Current Resistivity Survey Jump to: navigation, search Dictionary.png Direct-Current Resistivity Survey Direct-current (DC) resistivity is an active source electrical technique in which current is applied to the ground using electrodes and the earth response (voltage or potential difference) is recorded. This survey generates a geoelectric section of apparent resistivity and enables an inference of subsurface geology.[1] View on Wikipedia Wikipedia Definition References ↑ http://www.nga.com/Flyers_PDF/NGA_DC_Resistivity.pdf

32

The Department of Energy's Innovation in GM's Chevrolet Volt | Department  

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

The Department of Energy's Innovation in GM's Chevrolet Volt The Department of Energy's Innovation in GM's Chevrolet Volt The Department of Energy's Innovation in GM's Chevrolet Volt January 11, 2011 - 11:49am Addthis Chevy Volt and replica battery | Photo Courtesy of Argonne Lab's Flickr Chevy Volt and replica battery | Photo Courtesy of Argonne Lab's Flickr Patrick B. Davis Patrick B. Davis Vehicle Technologies Program Manager Last Thursday was a big day in the world of advanced vehicle batteries. On January 6, the Department of Energy's Argonne National Laboratory announced that General Motors and its battery cell supplier, LG Chem Power Inc., have each signed licensing agreements to use Argonne's breakthrough battery technology. Funded by the Department, scientists at Argonne have developed a unique suite of cathode materials - a 'family' of lithium-rich

33

The Department of Energy's Innovation in GM's Chevrolet Volt | Department  

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

Innovation in GM's Chevrolet Volt Innovation in GM's Chevrolet Volt The Department of Energy's Innovation in GM's Chevrolet Volt January 11, 2011 - 11:49am Addthis Chevy Volt and replica battery | Photo Courtesy of Argonne Lab's Flickr Chevy Volt and replica battery | Photo Courtesy of Argonne Lab's Flickr Patrick B. Davis Patrick B. Davis Vehicle Technologies Program Manager Last Thursday was a big day in the world of advanced vehicle batteries. On January 6, the Department of Energy's Argonne National Laboratory announced that General Motors and its battery cell supplier, LG Chem Power Inc., have each signed licensing agreements to use Argonne's breakthrough battery technology. Funded by the Department, scientists at Argonne have developed a unique suite of cathode materials - a 'family' of lithium-rich

34

SeaVolt Technologies formerly Sea Power Associates | Open Energy  

Open Energy Info (EERE)

SeaVolt Technologies formerly Sea Power Associates SeaVolt Technologies formerly Sea Power Associates Jump to: navigation, search Name SeaVolt Technologies (formerly Sea Power & Associates) Place San Francisco, California Zip CA 94111 Sector Ocean Product The company's Wave Rider system, which is still in prototype stages, uses buoys and hydraulic pumps to convert the movement of ocean waves into electricity. References SeaVolt Technologies (formerly Sea Power & Associates)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This article is a stub. You can help OpenEI by expanding it. SeaVolt Technologies (formerly Sea Power & Associates) is a company located in San Francisco, California .

35

Direct-Current Resistivity Survey At Blue Mountain Area (Fairbank  

Open Energy Info (EERE)

5) 5) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Blue Mountain Area (Fairbank Engineering, 2005) Exploration Activity Details Location Blue Mountain Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Geophysical surveys that have been conducted specifically for the geothermal program at Blue Mountain include a self-potential (SP) survey, and additional IP/electrical resistivity traversing. These surveys were conducted under a cooperative program between Noramex Corporation and the Energy and Geosciences Institute (EGI), University of Utah, with funding support from the DOE's Office of Geothermal Technology (DOE/OGT).

36

Transformer coupling for transmitting direct current through a barrier  

DOE Patents [OSTI]

The transmission system for transmitting direct current from an energy source on one side of an electrical and mechanical barrier to a load on the other side of the barrier utilizes a transformer comprising a primary core on one side of the transformer and a secondary core on the other side of the transformer. The cores are magnetically coupled selectively by moving a magnetic ferrite coupler in and out of alignment with the poles of the cores. The direct current from the energy source is converted to a time varying current by an oscillating circuit, which oscillating circuit is optically coupled to a secondary winding on the secondary core to interrupt oscillations upon the voltage in the secondary winding exceeding a preselected level. 4 figs.

Brown, R.L.; Guilford, R.P.; Stichman, J.H.

1987-06-29T23:59:59.000Z

37

Transformer coupling for transmitting direct current through a barrier  

DOE Patents [OSTI]

The transmission system for transmitting direct current from an energy source on one side of an electrical and mechanical barrier to a load on the other side of the barrier utilizes a transformer comprising a primary core on one side of the transformer and a secondary core on the other side of the transformer. The cores are magnetically coupled selectively by moving a magnetic ferrite coupler in and out of alignment with the poles of the cores. The direct current from the energy source is converted to a time varying current by an oscillating circuit, which oscillating circuit is optically coupled to a secondary winding on the secondary core to interrupt oscillations upon the voltage in the secondary winding exceeding a preselected level.

Brown, Ralph L. (Albuquerque, NM); Guilford, Richard P. (Albuquerque, NM); Stichman, John H. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

38

Advances in 3-Volt Lithium Batteries for Electronic Applications  

Science Journals Connector (OSTI)

Significant improvements have been made in recent years in the performance, reliability and operating temperature range of 3-volt primary lithium cell systems. Because of their excellent characteristics, especially their long life, they are not only ...

R. A. Langan; V. Z. Leger; G. R. Tucholski

1985-08-01T23:59:59.000Z

39

A Method for Evaluating Volt-VAR Optimization Field Demonstrations  

SciTech Connect (OSTI)

In a regulated business environment a utility must be able to validate that deployed technologies provide quantifiable benefits to the end-use customers. For traditional technologies there are well established procedures for determining what benefits will be derived from the deployment. But for many emerging technologies procedures for determining benefits are less clear and completely absent in some cases. Volt-VAR Optimization is a technology that is being deployed across the nation, but there are still numerous discussions about potential benefits and how they are achieved. This paper will present a method for the evaluation, and quantification of benefits, for field deployments of Volt-VAR Optimization technologies. In addition to the basic methodology, the paper will present a summary of results, and observations, from two separate Volt-VAR Optimization field evaluations using the proposed method.

Schneider, Kevin P.; Weaver, T. F.

2014-08-31T23:59:59.000Z

40

CyVolt Energy Systems | Open Energy Information  

Open Energy Info (EERE)

CyVolt Energy Systems CyVolt Energy Systems Jump to: navigation, search Name CyVolt Energy Systems Place Seattle, Washington Zip 98104 Product Seattle-based developer fuel cell-powered battery systems for portable, hand-held consumer electronics Coordinates 47.60356°, -122.329439° 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":47.60356,"lon":-122.329439,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "volt direct current" 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

Direct-Current Resistivity At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

At Central Nevada Seismic At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then

42

Summary of multiterminal high-voltage direct current transmission technology  

SciTech Connect (OSTI)

This report summarizes the present state of multiterminal (MT) high-voltage direct current (HVDC) power transmission. The purpose is to reassess the need for HVDC circuit breakers and to identify needed research for MT HVDC. The fundamentals of this technology are presented, and previous research and development is reviewed. Although no MT HVDC systems have yet been built, many concepts have been proposed. Some require a dc breaker, and others do not. Both options have advantages and disadvantages for various applications, so the selection will depend on the proposed application. Research is needed to define operating characteristics of various MT HVDC systems. In some applications, dc breakers will be useful, so research into HVDC interruption should continue. Also, dc fault detection and control algorithms for MT systems should be studied.

Biggs, R.B.; Jewell, W.T.

1984-05-01T23:59:59.000Z

43

Fundamental properties of field emission-driven direct current microdischarges  

SciTech Connect (OSTI)

For half a century, it has been known that the onset of field emission in direct current microdischarges with gap sizes less than 10 {mu}m can lead to breakdown at applied voltages far less than predicted by Paschen's law. It is still unclear how field emission affects other fundamental plasma properties at this scale. In this work, a one-dimensional fluid model is used to predict basic scaling laws for fundamental properties including ion density, electric field due to space charge, and current-voltage relations in the pre-breakdown regime. Computational results are compared with approximate analytic solutions. It is shown that field emission provides an abundance of cathode electrons, which in turn create large ion concentrations through ionizing collisions well before Paschen's criterion for breakdown is met. Breakdown due to ion-enhanced field emission occurs when the electric field due to space charge becomes comparable to the applied electric field. Simple scaling analysis of the 1D Poisson equation demonstrates that an ion density of n{sub +} Almost-Equal-To 0.1V{sub A}{epsilon}{sub 0}/qd{sup 2} is necessary to significantly distort the electric field. Defining breakdown in terms of this critical ion density leads analytically to a simple, effective secondary emission coefficient {gamma}{sup Prime} of the same mathematical form initially suggested by Boyle and Kisliuk [Phys. Rev. 97, 255 (1955)].

Rumbach, Paul; Go, David B. [Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2012-11-15T23:59:59.000Z

44

Direct-current-like Phase Space Manipulation Using Chirped Alternating Current Fields  

SciTech Connect (OSTI)

Waves in plasmas can accelerate particles that are resonant with the wave. A dc electric field also accelerates particles, but without a resonance discrimination, which makes the acceleration mechanism profoundly different. Whereas wave-particle acceleration mechanisms have been widely discussed in the literature, this work discusses the direct analogy between wave acceleration and dc field acceleration in a particular parameter regime explored in previous works. Apart from the academic interest of this correspondence, there may be practical advantages in using waves to mimic dc electric fields, for example, in driving plasma current with high efficiency.

P.F. Schmit and N.J. Fisch

2010-02-01T23:59:59.000Z

45

Hardware model of a shipboard zonal electrical distribution system (ZEDS) : alternating current/direct current (AC/DC)  

E-Print Network [OSTI]

A hardware model of a shipboard electrical distribution system based on aspects of the DDG 51 Flight IIA, Arleigh Burke class, 60Hz Alternating Current (AC) and the future direct current (DC), zonal electrical distribution ...

Tidd, Chad N. (Chad Norman)

2010-01-01T23:59:59.000Z

46

Electrochemical synthesis of nanosized hydroxyapatite by pulsed direct current method  

SciTech Connect (OSTI)

Synthesis of nanosized of hydroxyapatite (HA) by electrochemical pulsed direct current (PDC) method has been studied. The aim of this work is to study the influence of various PDC parameters (pH initial, electrode distance, duty cycle, frequency, and amplitude) on particle surface area of HA powders. The electrochemical synthesis was prepared in solution Ca{sup 2+}/EDTA{sup 4?}/PO{sub 4}{sup 3+} at concentration 0.25/0.25/0.15 M for 24 h. The electrochemical cell was consisted of two carbon rectangular electrodes connected to a function generator to produce PDC. There were two treatments for particles after electrosynthesized, namely without aging and aged for 2 days at 40 °C. For both cases, the particles were filtered and washed by demineralized water to eliminate the impurities and unreacted reactants. Then, the particles were dried at 100 °C for 2 days. The dried particles were characterized by X-ray diffraction, surface area analyzer, scanning electron microscopy (SEM), Fourier transform infrared spectra and thermogravimetric and differential thermal analysis. HA particles can be produced when the initial pH > 6. The aging process has significant effect on the produced HA particles. SEM images of HA particles showed that the powders consisted of agglomerates composed of fine crystallites and have morphology plate-like and sphere. The surface area of HA particles is in the range of 25 – 91 m{sup 2}/g. The largest particle surface area of HA was produced at 4 cm electrode distance, 80% cycle duty, frequency 0.1 Hz, amplitude 9 V and with aging process.

Nur, Adrian; Rahmawati, Alifah; Ilmi, Noor Izzati; Affandi, Samsudin; Widjaja, Arief [Departement of Chemical Engineering, Faculty of Industrial Technology, Sepuluh Nopember Institute of Technology, Kampus ITS Sukolilo, Surabaya 60111 (Indonesia)

2014-02-24T23:59:59.000Z

47

Nissan Leafs and Chevrolet Volts Reporting Data in The EV Project...  

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

December 2012 Washington State 893 Leafs 98 Volts Oregon 549 Leafs 94 Volts 30 Smart Electric Drives San Francisco 1730 Lea fs Los Angeles 497 Lea fs 165 Vo lts Chicago 29...

48

Students' understanding of direct current resistive electrical circuits Paula Vetter Engelhardta)  

E-Print Network [OSTI]

Students' understanding of direct current resistive electrical circuits Paula Vetter Engelhardta regarding direct current resistive electric circuits often differ from the accepted explanations. At present of direct cur- rent DC resistive electric circuits concepts. DIRECT has been designed for use with high

Zollman, Dean

49

Guidelines for Working at Voltages < 240 Volts  

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

Guidelines for Working at Voltages < 240 Volts Guidelines for Working at Voltages < 240 Volts February 4, 2005---DRAFT NOTE: Working hot is a LAST ALTERNATIVE. Electrical hot work is defined as: Working on or near exposed conducting parts that are or might become energized at 50V or more. Refer to Electrical Safety Flowchart for Working On or Near Live Parts. Engineered methods to prevent exposed sources of 50V and greater are to be implemented wherever practical. Only QUALIFIED PERSONNEL {as defined in NFPA 70E Article 110.6(D) 2004 edition} as authorized by the CAT/supervisor/division can perform such work. Refer to Qualified Electrical Worker Flow Chart. Training requirements: ES&H 114 (LOTO) / ES&H 375 (NFPA 70E) / ES&H 371 (electrical worker) - Observe Electrical Safe Work Practices. Refer to

50

Apparatuses and method for converting electromagnetic radiation to direct current  

DOE Patents [OSTI]

An energy conversion device may include a first antenna and a second antenna configured to generate an AC current responsive to incident radiation, at least one stripline, and a rectifier coupled with the at least one stripline along a length of the at least one stripline. An energy conversion device may also include an array of nanoantennas configured to generate an AC current in response to receiving incident radiation. Each nanoantenna of the array includes a pair of resonant elements, and a shared rectifier operably coupled to the pair of resonant elements, the shared rectifier configured to convert the AC current to a DC current. The energy conversion device may further include a bus structure operably coupled with the array of nanoantennas and configured to receive the DC current from the array of nanoantennas and transmit the DC current away from the array of nanoantennas.

Kotter, Dale K; Novack, Steven D

2014-09-30T23:59:59.000Z

51

Lightning strikes to tall objects: Currents inferred from far electromagnetic fields versus directly measured currents  

E-Print Network [OSTI]

-field-to-current conversion factors for lightning strikes to tall objects for (1) the initial peak current at the object top. These far-field-to-current conversion factors are needed for proper interpretation of peak currents reported-field-to-current conversion factor for lightning strikes to flat ground based on the transmission line model and (b

Florida, University of

52

Direct Laser Cladding , Current Status and Future Scope of Application  

Science Journals Connector (OSTI)

During the last decades Direct Laser Cladding has become an established technique in many ... oil drilling components. Continuous wave (CW) lasers with a power up to 18 kW ... with three or more axes, enabling ...

A. Weisheit; A. Gasser; G. Backes; T. Jambor…

2013-01-01T23:59:59.000Z

53

Direct current sputtering of boron from boron/boron mixtures  

DOE Patents [OSTI]

A method for coating a substrate with boron by sputtering includes lowering the electrical resistance of a boron-containing rod to allow electrical conduction in the rod; placing the boron-containing rod inside a vacuum chamber containing substrate material to be coated; applying an electrical potential between the boron target material and the vacuum chamber; countering a current avalanche that commences when the conduction heating rate exceeds the cooling rate, and until a steady equilibrium heating current is reached; and, coating the substrate material with boron by sputtering from the boron-containing rod. 2 figures.

Timberlake, J.R.; Manos, D.; Nartowitz, E.

1994-12-13T23:59:59.000Z

54

Current LDRD Schedule, Laboratory Directed Research and Development (LDRD)  

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

Homepage BNL Home Homepage BNL Home BNL: Departments | Science | ESS&H | Newsroom | Administration | Visitors | Directory search Go Find People Site Details LDRD Home Current Schedule Proposal Submission Subject Area DOE Order O413.2B DOE-SC Roles & Responsibilities Guidance dated 6/13/06 (pdf) LDRD Reports (PDFs) View Reports Other Information BNL Site Index Can't View PDFs? LDRD Schedule for Fiscal Year 2013 October 1, 2012 FY 2013 Approval of Funding Ceiling from DOE - SC October 1 FY 2013 Individual Project Approvals by DOE - BHSO October 15 Call for FY2012 Individual Project Annual Reports October 31 Information Due to the OMBE/CFO Database November 15 Complex-wide Data from HQ Due to Congress November 20 FY 2012 Individual Project Annual Reports Due

55

Propagation direction reversal of ionization zones in the transition between high and low current magnetron sputtering  

SciTech Connect (OSTI)

Past research has revealed the propagation of dense, asymmetric ionization zones in both high and low current magnetron discharges. Here we report about the direction reversal of ionization zone propagation as observed with fast cameras. At high currents, zones move in the E B direction with velocities of 103 to 104 m/s. However at lower currents, ionization zones are observed to move in the opposite, the -E B direction, with velocities ~;; 103 m/s. It is proposed that the direction reversal is associated with the local balance of ionization and supply of neutrals in the ionization zone.

School of Materials Science and Engineering, State Key Lab for Materials Processing and Die & Mold Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Department of Physics, University of California Berkeley, Berkeley, California 94720, USA; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA; Yang, Yuchen; Liu, Jason; Liu, Lin; Anders, André

2014-12-11T23:59:59.000Z

56

Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al., 2004) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Update to Warpinski, et al., 2002 References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J. Nathwani (2004) Geothermal Resource Exploration And Definition Projects Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Cove_Fort_Area_-_Vapor_(Warpinski,_Et_Al.,_2004)&oldid=598134"

57

Direct-Current Resistivity At Cove Fort Area - Liquid (Warpinski, Et Al.,  

Open Energy Info (EERE)

Direct-Current Resistivity At Cove Fort Area - Liquid (Warpinski, Et Al., Direct-Current Resistivity At Cove Fort Area - Liquid (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2004) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Update to Warpinski, et al., 2002 References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J. Nathwani (2004) Geothermal Resource Exploration And Definition Projects Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_At_Cove_Fort_Area_-_Liquid_(Warpinski,_Et_Al.,_2004)&oldid=598125" Categories: Exploration Activities

58

Direct-Current Resistivity Survey At Marysville Mt Area (Blackwell) | Open  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Marysville Mt Area (Blackwell) Direct-Current Resistivity Survey At Marysville Mt Area (Blackwell) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Marysville Mt Area (Blackwell) Exploration Activity Details Location Marysville Mt Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes A dipole-dipole resistivity survey of the area was carried out with estimated penetration up to 700 meters and no indication of low values of resistivity were found associated with the thermal anomaly. References D. D. Blackwell (Unknown) Exploration In A Blind Geothermal Area Near Marysville, Montana, Usa Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Marysville_Mt_Area_(Blackwell)&oldid=510539

59

Direct-Current Resistivity Survey At Roosevelt Hot Springs Area (Combs  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Roosevelt Hot Springs Area (Combs Direct-Current Resistivity Survey At Roosevelt Hot Springs Area (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Roosevelt Hot Springs Area (Combs 2006) Exploration Activity Details Location Roosevelt Hot Springs Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes "SP, MT, dipole-dipole resistivity, CSAMT; sufficient electrical data may be available" References Jim Combs (1 January 2006) Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Roosevelt_Hot_Springs_Area_(Combs_2006)&oldid=510548"

60

Direct-Current Resistivity At Cove Fort Area - Liquid (Combs 2006) | Open  

Open Energy Info (EERE)

Direct-Current Resistivity At Cove Fort Area - Liquid (Combs 2006) Direct-Current Resistivity At Cove Fort Area - Liquid (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Cove Fort Area (Combs 2006) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes "SP, dipole-dipole resistivity, CSAMT; sufficient electrical data are available. Reservoir model?" References Jim Combs (1 January 2006) Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_At_Cove_Fort_Area_-_Liquid_(Combs_2006)&oldid=598123

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61

Direct-Current Resistivity At Brady Hot Springs Area (Combs 2006) | Open  

Open Energy Info (EERE)

Direct-Current Resistivity At Brady Hot Springs Area (Combs 2006) Direct-Current Resistivity At Brady Hot Springs Area (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Brady Hot Springs Area (Combs 2006) Exploration Activity Details Location Brady Hot Springs Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes "sufficient geophysical data are not available" References Jim Combs (1 January 2006) Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_At_Brady_Hot_Springs_Area_(Combs_2006)&oldid=594379"

62

Direct-Current Resistivity Survey At Hualalai Northwest Rift Area (Thomas,  

Open Energy Info (EERE)

Hualalai Northwest Rift Area (Thomas, Hualalai Northwest Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Hualalai Northwest Rift Area (Thomas, 1986) Exploration Activity Details Location Hualalai Northwest Rift Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes A total of seven Schlumberger soundings were performed on Hualalai. References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Hualalai_Northwest_Rift_Area_(Thomas,_1986)&oldid=510528" Category: Exploration Activities What links here Related changes

63

Direct-Current Resistivity Survey At Cove Fort Area - Liquid (Combs 2006) |  

Open Energy Info (EERE)

- Liquid (Combs 2006) - Liquid (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Cove Fort Area (Combs 2006) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes "SP, dipole-dipole resistivity, CSAMT; sufficient electrical data are available. Reservoir model?" References Jim Combs (1 January 2006) Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Cove_Fort_Area_-_Liquid_(Combs_2006)&oldid=598127"

64

Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2002) |  

Open Energy Info (EERE)

(Redirected from Direct-Current Resistivity At Cove Fort Area - Vapor (Redirected from Direct-Current Resistivity At Cove Fort Area - Vapor (Warpinski, Et Al., 2002)) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The project at Cove Fort/Sulphurdale in Utah, T26S R6/7W, is concerned with locating and drilling a 900-meter well to explore the western extension of the Cove Fort-Sulphurdale geothermal area. The geophysical exploration consisted of resistivity, ground magnetic, and microgravity surveys that were made to site the well in an optimum location.

65

Direct-Current Resistivity Survey At Lightning Dock Area (Cunniff & Bowers,  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Lightning Dock Area (Cunniff & Bowers, Direct-Current Resistivity Survey At Lightning Dock Area (Cunniff & Bowers, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Lightning Dock Area (Cunniff & Bowers, 2005) Exploration Activity Details Location Lightning Dock Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Two electrical resistivity survey lines were run in the project area: a southern east-west line along Caliche Road, and a northern east-west line in the south half Section 6, T25S, R19W (figure 5). The Caliche Road line is located south of the greenhouse complex and was run along the road, which was also used for a gravity traverse. The northern line, named

66

Direct-Current Resistivity Survey At Coso Geothermal Area (1977) | Open  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Coso Geothermal Area (1977) Direct-Current Resistivity Survey At Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date 1977 Usefulness useful regional reconnaissance DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes DC resistivity geophysical surveys determined that the secondary low in the geothermal area, best defined by the 7.5-Hz AMT map and dc soundings, is caused by a shallow conductive zone (5--30 ohm m) interpreted to be

67

EIS-0450: TransWest Express 600 kV Direct Current Transmission Project in  

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

0: TransWest Express 600 kV Direct Current Transmission 0: TransWest Express 600 kV Direct Current Transmission Project in Wyoming, Colorado, Utah, and Nevada EIS-0450: TransWest Express 600 kV Direct Current Transmission Project in Wyoming, Colorado, Utah, and Nevada Summary This EIS, being prepared jointly by DOE's Western Area Power Administration and the Department of the Interior's Bureau of Land Management (Wyoming State Office), evaluates the environmental impacts of granting a right-of-way for the TransWest Express 600-kilovolt Direct Current Transmission Project and amending a land use plan. The project consists of an overhead transmission line that would extend approximately 725 miles from south-central Wyoming, through Colorado and Utah. Western proposes to be a joint owner of the project. Public Comment Opportunities

68

Direct-Current Resistivity Survey At Kilauea Southwest Rift And South Flank  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Kilauea Southwest Rift And South Flank Direct-Current Resistivity Survey At Kilauea Southwest Rift And South Flank Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Kilauea Southwest Rift And South Flank Area (Thomas, 1986) Exploration Activity Details Location Kilauea Southwest Rift And South Flank Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The electrical resistivity data acquired on the southwest rift delineated two distinct basement resistivity structures northwest of the rift zone: a high-resistivity basement at approximately 60 m a.s.l, and located north of a prehistoric fissure, and a low-resistivity deep basement (20 m a.s.1.) to

69

Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The project at Cove Fort/Sulphurdale in Utah, T26S R6/7W, is concerned with locating and drilling a 900-meter well to explore the western extension of the Cove Fort-Sulphurdale geothermal area. The geophysical exploration consisted of resistivity, ground magnetic, and microgravity surveys that were made to site the well in an optimum location.

70

Direct-Current Resistivity At Kilauea Southwest Rift And South Flank Area  

Open Energy Info (EERE)

Direct-Current Resistivity At Kilauea Southwest Rift And South Flank Area Direct-Current Resistivity At Kilauea Southwest Rift And South Flank Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Kilauea Southwest Rift And South Flank Area (Thomas, 1986) Exploration Activity Details Location Kilauea Southwest Rift And South Flank Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The electrical resistivity data acquired on the southwest rift delineated two distinct basement resistivity structures northwest of the rift zone: a high-resistivity basement at approximately 60 m a.s.l, and located north of a prehistoric fissure, and a low-resistivity deep basement (20 m a.s.1.) to the south and east of this fissure (Figs 48, 49). These data suggest that a

71

Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2002) |  

Open Energy Info (EERE)

Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2002) Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The project at Cove Fort/Sulphurdale in Utah, T26S R6/7W, is concerned with locating and drilling a 900-meter well to explore the western extension of the Cove Fort-Sulphurdale geothermal area. The geophysical exploration consisted of resistivity, ground magnetic, and microgravity surveys that were made to site the well in an optimum location. References N. R. Warpinski, A. R. Sattlerl, D. A. Sanchez (2002) Geothermal

72

The Effect of Propane on Atomic Spectrometric Signals in the Direct-Current Plasma  

Science Journals Connector (OSTI)

The addition of small amounts of propane to the direct-current plasma (DCP) affects the emission signal of analyte species in the plasma. In the normal analytical region of the...

McCreary, Terry W; Long, Gary L

1988-01-01T23:59:59.000Z

73

The Breakthrough Behind the Chevy Volt Battery | U.S. DOE Office of Science (SC)  

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

The Breakthrough Behind the Chevy Volt Battery The Breakthrough Behind the Chevy Volt Battery Stories of Discovery & Innovation The Breakthrough Behind the Chevy Volt Battery Enlarge Photo Image courtesy of General Motors The 2011 Chevrolet Volt's 16 kWh battery can be recharged using a 120V or 240V outlet. The car's lithium-ion battery is based on technology developed at Argonne National Laboratory. Enlarge Photo Illustration courtesy Argonne National Laboratory This illustration shows the inner workings of a lithium-ion battery. When delivering energy to a device, the lithium ion moves from the anode to the cathode. The ion moves in reverse when recharging. Compared to other rechargeable 03.28.11 The Breakthrough Behind the Chevy Volt Battery A revolutionary breakthrough cathode for lithium-ion batteries-the kind in your

74

Parallel electric fields in the upward current region of the aurora: Indirect and direct observations  

E-Print Network [OSTI]

Parallel electric fields in the upward current region of the aurora: Indirect and direct In this article we present electric field, magnetic field, and charged particle observations from the upward current region of the aurora focusing on the structure of electric fields at the boundary between

California at Berkeley, University of

75

Direct current measurement of ohmic resistance of high conductivity solutions by means of polarized electrodes  

E-Print Network [OSTI]

ULTE ~ ~ VI. BIDLIOCRl t'iK . , ~ ~ I, "vo-' 4&iii Mt? ix; '. ztoo. 'ici~-. I:;aioc: oi'Mon. at 3G ' '. by Both !3C caei AC:, ". othoE=- at m ' -". . . . . i. 'clcaint . ' ' ta Eor Pigxo Yi Ei, o -v. - -:wont ~~to SoL- 3;c, ~. . . o "~centt-iWcn. i o... ciradt. Tie~ mhdc:f. ". M t'. xe kalar:~tian er"ar to 1~@ by u ~~ s ~l af 1~~ volts. fn 19 5 '1 e M". s. "3 k' D~e'". " n f7", u;. o. l 3. . a cesmmm c& :olden resfstnnc . "~m 10 Mms, PolsrLM, ~ was ave lsd by using kow potential af 0. 02 volt:. fr...

Artecona, Victor Manuel

1959-01-01T23:59:59.000Z

76

ELSEVIER Bioelectrochemistry and Bioenergetics 35 (1994) 99-101 Low level direct current -cell culture fibroblast model  

E-Print Network [OSTI]

ELSEVIER Bioelectrochemistry and Bioenergetics 35 (1994) 99-101 Low level direct current - cell;100 U. Batista et al. / Bioelectrochemistry and Bioenergetics 35 (1994) 99-101 2.2. Direct current

Ljubljana, University of

77

An Annotated Bibliography of High-Voltage Direct-Current Transmission and Flexible AC Transmission (FACTS) Devices, 1991-1993.  

SciTech Connect (OSTI)

References are contained for HVDC systems, converter stations and components, overhead transmission lines, cable transmission, system design and operations, simulation of high voltage direct current systems, high-voltage direct current installations, and flexible AC transmission system (FACTS).

Litzenberger, Wayne; Lava, Val

1994-08-01T23:59:59.000Z

78

Direct-Current Resistivity Survey At Mt Princeton Hot Springs Area  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity Survey At Mt Princeton Hot Springs Area (Richards, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Mt Princeton Hot Springs Area (Richards, Et Al., 2010) Exploration Activity Details Location Mt Princeton Hot Springs Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Used to map fracture and fluid flow patterns. References K. Richards, A. Revil, A. Jardani, F. Henderson, M. Batzle, A. Haas (2010) Pattern Of Shallow Ground Water Flow At Mount Princeton Hot Springs,

79

Direct-Current Resistivity Survey At Mokapu Penninsula Area (Thomas, 1986)  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Mokapu Direct-Current Resistivity Survey At Mokapu Penninsula Area (Thomas, 1986) Exploration Activity Details Location Mokapu Penninsula Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Geophysical surveys on Mokapu were restricted to three Schlumberger soundings (Fig. 17). The results of these soundings appeared to indicate a highly resistive surface section underlain by one or more layers of intermediate to low resistivity (Fig. 18). Basement resistivities in all cases were less than 3 ohm.m and were interpreted to correspond to alluvial layers saturated with cold seawater (Lienert, 1982). --- A separate geophysical analysis performed on the Koolau caldera area (Kauahikaua, 1981 a) synthesized existing self-potential, gravity, seismic and aeromagnetic

80

Direct-Current Resistivity At Long Valley Caldera Area (Pribnow, Et Al.,  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity At Long Valley Caldera Area (Pribnow, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Long Valley Caldera Area (Pribnow, Et Al., 2003) Exploration Activity Details Location Long Valley Caldera Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes DC electrical sounding measurements provide a 2-D image of the resistivity distribution beneath Long Valley Caldera. Conductive zones and SP anomalies correlate with the location of known faults in agreement with previous

Note: This page contains sample records for the topic "volt direct current" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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81

Direct-Current Resistivity Survey At Dixie Valley Geothermal Field Area  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Dixie Valley Direct-Current Resistivity Survey At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Structural Controls, Alteration, Permeability and Thermal Regime of Dixie Valley from New-Generation Mt/Galvanic Array Profiling, Phillip Wannamaker. A new-generation MT/DC array resistivity measurement system was applied at the Dixie Valley thermal area. Basic goals of the survey are 1), resolve a fundamental structural ambiguity at the Dixie Valley thermal area (single rangefront fault versus shallower, stepped pediment; 2), delineate fault zones which have experienced fluid flux as indicated by low resistivity;

82

Direct-Current Resistivity Survey At Kilauea Summit Area (Keller, Et Al.,  

Open Energy Info (EERE)

1979) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Kilauea Summit Area (Keller, Et Al., 1979) Exploration Activity Details Location Kilauea Summit Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes An electromagnetic sounding survey by Jackson and Keller (1972) defined a strong resistivity anomaly above the center of inflation associated with volcanic activity during the early 1960's. References George V. Keller, L. Trowbridge Grose, John C. Murray, Catherine K. Skokan (1979) Results Of An Experimental Drill Hole At The Summit Of Kilauea Volcano, Hawaii Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Kilauea_Summit_Area_(Keller,_Et_Al.,_1979)&oldid=510532

83

Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al.,  

Open Energy Info (EERE)

(Warpinski, Et Al., (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al., 2004) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Update to Warpinski, et al., 2002 References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J. Nathwani (2004) Geothermal Resource Exploration And Definition Projects Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Cove_Fort_Area_(Warpinski,_Et_Al.,_2004)&oldid=598126" Categories: Exploration Activities DOE Funded Activities What links here

84

Direct-Current Resistivity At Haleakala Volcano Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity At Haleakala Volcano Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Haleakala Volcano Area (Thomas, 1986) Exploration Activity Details Location Haleakala Volcano Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes The field survey program on the northwest rift zone consisted of soil mercury and radon emanometry surveys, groundwater temperature and chemistry studies, Schlumberger resistivity soundings and self-potential profiles.

85

Direct-Current Resistivity Survey At Mauna Loa Northeast Rift Area (Thomas,  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Mauna Loa Direct-Current Resistivity Survey At Mauna Loa Northeast Rift Area (Thomas, 1986) Exploration Activity Details Location Mauna Loa Northeast Rift Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The vertical electrical sounding surveys encountered few difficulties and were able to resolve basement resistivities in all locations. The resistivity sections derived indicated a 3000- 20,000 ohm.m surface layer underlain by a 500- 900 ohm-m cold freshwatersaturated layer and a basement layer of less than 100 ohm.m (Kauahikaua and Mattice, 1981). The depth of penetration of these soundings was estimated to be about 800 m to 900 m b.s.1. and thus the basement resistivities probably correspond to basalts

86

Direct-Current Resistivity Survey At Clear Lake Area (Skokan, 1993) | Open  

Open Energy Info (EERE)

Area (Skokan, 1993) Area (Skokan, 1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Clear Lake Area (Skokan, 1993) Exploration Activity Details Location Clear Lake Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Several direct-current, bipole-dipole surveys were carried out in the area. These field measurements (Rapolla and Keller, 1984) were combined by spatially averaging apparent resistivities on a one kilometer grid ( Fig. 6 ). The authors felt that local geologic noise could be reduced and large-scale features would be emphasized by this averaging. The most significant feature which resulted was a clear electrical signature of the

87

Direct-Current Resistivity Survey At Nw Basin & Range Region (Pritchett,  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity Survey At Nw Basin & Range Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Nw Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The

88

Direct-Current Resistivity Survey At Haleakala Volcano Area (Thomas, 1986)  

Open Energy Info (EERE)

Direct-Current Resistivity Survey At Haleakala Direct-Current Resistivity Survey At Haleakala Volcano Area (Thomas, 1986) Exploration Activity Details Location Haleakala Volcano Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes The field survey program on the northwest rift zone consisted of soil mercury and radon emanometry surveys, groundwater temperature and chemistry studies, Schlumberger resistivity soundings and self-potential profiles. Geophysical and geochemical surveys along this rift (southwest) were limited by difficult field conditions and access limitations. The geophysical program consisted of one Schlumberger sounding, one self-potential profile and one controlled-source electromagnetic sounding. The geochemical data collected included a reconnaissance soil mercury and

89

Direct-Current Resistivity Survey At Long Valley Caldera Area (Pribnow, Et  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity Survey At Long Valley Caldera Area (Pribnow, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Long Valley Caldera Area (Pribnow, Et Al., 2003) Exploration Activity Details Location Long Valley Caldera Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes DC electrical sounding measurements provide a 2-D image of the resistivity distribution beneath Long Valley Caldera. Conductive zones and SP anomalies

90

Direct-Current Resistivity At Kilauea Summit Area (Keller, Et Al., 1979) |  

Open Energy Info (EERE)

Summit Area (Keller, Et Al., 1979) Summit Area (Keller, Et Al., 1979) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Kilauea Summit Area (Keller, Et Al., 1979) Exploration Activity Details Location Kilauea Summit Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes An electromagnetic sounding survey by Jackson and Keller (1972) defined a strong resistivity anomaly above the center of inflation associated with volcanic activity during the early 1960's. References George V. Keller, L. Trowbridge Grose, John C. Murray, Catherine K. Skokan (1979) Results Of An Experimental Drill Hole At The Summit Of Kilauea Volcano, Hawaii Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_At_Kilauea_Summit_Area_(Keller,_Et_Al.,_1979)&oldid=594370"

91

Direct-Current Resistivity At Clear Lake Area (Skokan, 1993) | Open Energy  

Open Energy Info (EERE)

Clear Lake Area (Skokan, 1993) Clear Lake Area (Skokan, 1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Clear Lake Area (Skokan, 1993) Exploration Activity Details Location Clear Lake Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Several direct-current, bipole-dipole surveys were carried out in the area. These field measurements (Rapolla and Keller, 1984) were combined by spatially averaging apparent resistivities on a one kilometer grid ( Fig. 6 ). The authors felt that local geologic noise could be reduced and large-scale features would be emphasized by this averaging. The most significant feature which resulted was a clear electrical signature of the

92

Direct-Current Resistivity Survey At Mauna Loa Southwest Rift Area (Thomas,  

Open Energy Info (EERE)

Area (Thomas, Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Mauna Loa Southwest Rift Area (Thomas, 1986) Exploration Activity Details Location Mauna Loa Southwest Rift Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Field surveys in the South Point area were limited to a series of Schlumberger soundings and a self-potential traverse across the rift zone. The absence of groundwater wells and time and funding constraints precluded any geochemical field surveys. References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii Retrieved from "http://en.openei.org/w/index.php?title=Direct-Current_Resistivity_Survey_At_Mauna_Loa_Southwest_Rift_Area_(Thomas,_1986)&oldid=510541"

93

Direct-Current Resistivity Survey At Kawaihae Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity Survey At Kawaihae Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Kawaihae Area (Thomas, 1986) Exploration Activity Details Location Kawaihae Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes In addition to the aeromagnetic data, the field survey program in Kawaihae included six Schlumberger resistivity soundings between Kawaihae and Waimea (Kauahikaua and Mattice, 1981). The results of these sounding (Fig. 35)

94

Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2004) |  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Cove Fort Area (Warpinski, Et Al., 2004) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Update to Warpinski, et al., 2002 References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J. Nathwani (2004) Geothermal Resource Exploration And Definition Projects

95

Direct-Current Resistivity Survey At Lightning Dock Area (Warpinski, Et  

Open Energy Info (EERE)

Et Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Lightning Dock Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Lightning Dock Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes As a foundation for successful siting and drilling a deep test well, additional geophysical work has been completed including gravity, resistivity, and airborne magnetic surveys. Several new seismic profiles are planned to provide more focused siting and drilling plans. These new geophysical surveys are being integrated into the combined thermal, hydrologic, and subsurface stratigraphic information data sets to provide a

96

Direct-Current Resistivity Survey At Walker-Lane Transitional Zone Region  

Open Energy Info (EERE)

Pritchett, 2004) Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Walker-Lane Transitional Zone Region (Pritchett, 2004) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best

97

Direct-Current Resistivity At Lualualei Valley Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

Lualualei Valley Area (Thomas, 1986) Lualualei Valley Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Lualualei Valley Area (Thomas, 1986) Exploration Activity Details Location Lualualei Valley Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Three Schlumberger resistivity soundings were performed in Lualualei Valley (Mattice and Kauahikaua, 1979). K840 Interpretation of the resistivity soundings suggests that the source of the warm water layer within the valley was the dense dike complex associated with the ancient magma chamber of Waianae volcano. References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii Retrieved from

98

Direct-Current Resistivity At Lightning Dock Area (Warpinski, Et Al., 2002)  

Open Energy Info (EERE)

2) 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Lightning Dock Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Lightning Dock Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes As a foundation for successful siting and drilling a deep test well, additional geophysical work has been completed including gravity, resistivity, and airborne magnetic surveys. Several new seismic profiles are planned to provide more focused siting and drilling plans. These new geophysical surveys are being integrated into the combined thermal, hydrologic, and subsurface stratigraphic information data sets to provide a

99

Direct-Current Resistivity Survey At Lualualei Valley Area (Thomas, 1986) |  

Open Energy Info (EERE)

Lualualei Valley Area (Thomas, 1986) Lualualei Valley Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Lualualei Valley Area (Thomas, 1986) Exploration Activity Details Location Lualualei Valley Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Three Schlumberger resistivity soundings were performed in Lualualei Valley (Mattice and Kauahikaua, 1979). K840 Interpretation of the resistivity soundings suggests that the source of the warm water layer within the valley was the dense dike complex associated with the ancient magma chamber of Waianae volcano. References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii

100

Direct-Current Resistivity Survey At Northern Basin & Range Region  

Open Energy Info (EERE)

Region Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Northern Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best

Note: This page contains sample records for the topic "volt direct current" 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

2011 Chevrolet Volt VIN 0815 Plug-In Hybrid Electric Vehicle...  

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

2-29678 2011 Chevrolet Volt VIN 0815 Plug-In Hybrid Electric Vehicle Battery Test Results Tyler Gray Jeffrey Wishart Matthew Shirk July 2013 The Idaho National Laboratory is a U.S....

102

The MAPS Program in the Pacific Northwest: Current Status and Future Direction  

E-Print Network [OSTI]

The MAPS Program in the Pacific Northwest: Current Status and Future Direction Report Submitted #12;#12;The MAPS Program in the Pacific Northwest - i TABLE OF CONTENTS EXECUTIVE SUMMARY........................................................................................................................................... 10 Adult Capture Rates and Station Longevity at MAPS Stations in the Pacific Northwest Region

DeSante, David F.

103

Nickel catalyst faceting in plasma-enhanced direct current chemical vapor deposition of carbon nanofibers  

E-Print Network [OSTI]

1 Nickel catalyst faceting in plasma-enhanced direct current chemical vapor deposition of carbon vapor deposition with Ni catalysts on the top of nanofibers. Transmission electron microscopy was used to study the morphology and crystallography of Ni catalysts, which are essential for the nucleation

Paris-Sud XI, Université de

104

Direct evidence for local oscillatory current sources and intracortical phase gradients in turtle  

E-Print Network [OSTI]

Direct evidence for local oscillatory current sources and intracortical phase gradients in turtle of several species. In turtle, these oscillations take the form of linear and circular traveling waves the origin of wave propagation in turtle visual cortex, we performed simultaneous measurements of the local

Kleinfeld, David

105

Current Directions of Structural Health Monitoring and Control in USA Satish Nagarajaiah1,  

E-Print Network [OSTI]

Current Directions of Structural Health Monitoring and Control in USA Satish Nagarajaiah1,§, 1 Prof.,Dept. of Civil & Env./Dept of Mech. Eng. & Mat. Sc., Rice Univ., Houston, TX 77005, U.S.A. 2 Prof.,Dept. of Mech. Aero. and Struc. Eng., Washington Univ., St. Louis, MO 63130, U.S.A. 3 Asst. Prof

Lynch, Jerome P.

106

Direct-Current Resistivity Survey At Raft River Geothermal Area (1983) |  

Open Energy Info (EERE)

Raft River Geothermal Area (1983) Raft River Geothermal Area (1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Raft River Geothermal Area (1983) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date 1983 Usefulness not indicated DOE-funding Unknown Notes The objectives of the resistivity measurements were to determine if measureable changes could be observed and whether they could be used to infer the direction of fluid flow. Most of the apparent resistivity changes observed after the injection phase of Test 5 are smaller than the estimated standard deviation of the measurements. However, the contour map of the changes suggest an anomalous trend to the northeast which is similar to the

107

Fluid modeling of radio frequency and direct currents in a biased magnetized plasma  

SciTech Connect (OSTI)

This model aims at simulating a magnetized plasma column connected on one side to a probe and on the other side to an ICRH (Ion Cyclotron Resonant Heating) antenna. This is a double probe modeling of a plasma flux tube exchanging perpendicular currents: rf polarization current and dc currents (inertia, viscous, and friction) perpendicular to the magnetic field. A self consistent solution for the rectified potential and the density is obtained under the assumptions of flute hypothesis, inertialess electrons, and no collision in parallel direction. The main effect of rf biasing on the antenna side is to shift the IV characteristic so that the floating potential can be increased up to ln(I{sub 0}(eV{sub rf}/(k{sub B}T{sub e}))), with I{sub 0} the modified Bessel function of the first kind. On the contrary, the effect of dc currents is to decrease the plasma potential and the sheath potential which can be lower than 3k{sub B}T{sub e}/e or even be negative. Experimental characteristics are well matched by the 1D fluid code and exhibit very high negative currents (more than 30 j{sub i} the ion saturation current) for high positive biasing of the probe and for long flux tube (10 m). The non-saturation of the electron current is here due to high transverse transport enhanced by convective fluxes and dc currents able to bring an amount of density around the biased flux tube. During comparisons with experiments, the floating potential measured by a reciprocating probe is recovered by the code revealing that for a 120 V measured peak potential on the probe, the rf potential on the ICRH antenna is twice this value. Finally, the density profile can be flattened or steepened as a function of the transverse dc current direction.

Faudot, E.; Heuraux, S. [IJL-P2M UMR 7198 CNRS, F-54506 Vandoeuvre les Nancy, IJL, P2M-Faculte des Sciences, Vandoeuvre les Nancy 54506 (France); Kubic, M.; Gunn, J.; Colas, L. [CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)

2013-04-15T23:59:59.000Z

108

EIS-0107: Mead-Phoenix +500-kV Direct Current Transmission Line  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy’s Western Area Power Administration (WAPA) prepared this statement to analyze the potential environmental and socioeconomic impacts arising from WAPA and regional project sponsors’ proposal to construct a 500 kilovolt (kV) alternating current (AC) transmission line with the capability to be upgraded later to 500kV direct current (DC), connecting the Westwing Substation, located north of Phoenix, Arizona, with a new McCullough II Substation, located approximately 14 miles west of Boulder City, Nevada. This statement modifies a previously prepared federal statement from which the participants' election to proceed had not occurred at the time this statement was prepared.

109

Direct-Current Resistivity Survey At Valles Caldera - Sulphur Springs Area  

Open Energy Info (EERE)

Wilt & Haar, 1986) Wilt & Haar, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Valles Caldera - Sulphur Springs Area (Wilt & Haar, 1986) Exploration Activity Details Location Valles Caldera - Sulphur Springs Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Telluric profiles, magnetotelluric sounding, dc resistivity, and electromagnetic sounding surveys were all performed over the caldera in hopes of outlining deep drilling targets (Group 7 Inc., 1972; McPhar, 1973; Geonomics Inc., 1976). These data are used to help define the electrical structure in the reservoir region. Some of the data were reinterpreted using computer models, and interpretations from the various surveys were

110

Direct-Current Resistivity At Kilauea East Rift Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

Kilauea East Rift Area (Thomas, 1986) Kilauea East Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Kilauea East Rift Area (Thomas, 1986) Exploration Activity Details Location Kilauea East Rift Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Electrical resistivity studies performed on the Kilauea East Rift Zone have employed a variety of techniques. Bipole mapping was conducted by Keller et al. (1977a) as part of the Hawaii Geothermal Project (HGP) geoscience program and was able to provide data on the regional resistivity structure of the summit and eastern flank of Kilauea. The model developed indicated several different types of resistivity sections depending on the location

111

Direct-Current Resistivity At Kawaihae Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Kawaihae Area (Thomas, 1986) Kawaihae Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Kawaihae Area (Thomas, 1986) Exploration Activity Details Location Kawaihae Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes In addition to the aeromagnetic data, the field survey program in Kawaihae included six Schlumberger resistivity soundings between Kawaihae and Waimea (Kauahikaua and Mattice, 1981). The results of these sounding (Fig. 35) detected apparent resistivity differences in the surface rock depending on whether the soundings were done on Kohala or Mauna Kea lavas (Figs 36, 37), whereas uniform resistivities of 650- 850 ohm.m were found at depths of

112

Direct-Current Resistivity At Dixie Valley Geothermal Field Area (Laney,  

Open Energy Info (EERE)

2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Dixie Valley Geothermal Field Area (Laney, 2005) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Structural Controls, Alteration, Permeability and Thermal Regime of Dixie Valley from New-Generation Mt/Galvanic Array Profiling, Phillip Wannamaker. A new-generation MT/DC array resistivity measurement system was applied at the Dixie Valley thermal area. Basic goals of the survey are 1), resolve a fundamental structural ambiguity at the Dixie Valley thermal area (single rangefront fault versus shallower, stepped pediment; 2), delineate fault

113

Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al.,  

Open Energy Info (EERE)

Cove Fort Area (Warpinski, Et Al., Cove Fort Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes The project at Cove Fort/Sulphurdale in Utah, T26S R6/7W, is concerned with locating and drilling a 900-meter well to explore the western extension of the Cove Fort-Sulphurdale geothermal area. The geophysical exploration consisted of resistivity, ground magnetic, and microgravity surveys that were made to site the well in an optimum location. References N. R. Warpinski, A. R. Sattlerl, D. A. Sanchez (2002) Geothermal

114

Direct-Current Resistivity At Lightning Dock Area (Cunniff & Bowers, 2005)  

Open Energy Info (EERE)

Lightning Dock Area (Cunniff & Bowers, 2005) Lightning Dock Area (Cunniff & Bowers, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Lightning Dock Area (Cunniff & Bowers, 2005) Exploration Activity Details Location Lightning Dock Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Two electrical resistivity survey lines were run in the project area: a southern east-west line along Caliche Road, and a northern east-west line in the south half Section 6, T25S, R19W (figure 5). The Caliche Road line is located south of the greenhouse complex and was run along the road, which was also used for a gravity traverse. The northern line, named "Church Road,"+K846 was parallel to the east-west road and gravity

115

Direct-Current Resistivity Survey At Kilauea East Rift Area (Thomas, 1986)  

Open Energy Info (EERE)

Kilauea East Rift Area (Thomas, 1986) Kilauea East Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Kilauea East Rift Area (Thomas, 1986) Exploration Activity Details Location Kilauea East Rift Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Electrical resistivity studies performed on the Kilauea East Rift Zone have employed a variety of techniques. Bipole mapping was conducted by Keller et al. (1977a) as part of the Hawaii Geothermal Project (HGP) geoscience program and was able to provide data on the regional resistivity structure of the summit and eastern flank of Kilauea. The model developed indicated several different types of resistivity sections depending on the location

116

Direct-Current Resistivity Survey At Valles Caldera - Redondo Area (Wilt &  

Open Energy Info (EERE)

Wilt & Wilt & Haar, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Valles Caldera - Redondo Area (Wilt & Haar, 1986) Exploration Activity Details Location Valles Caldera - Redondo Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Telluric profiles, magnetotelluric sounding, dc resistivity, and electromagnetic sounding surveys were all performed over the caldera in hopes of outlining deep drilling targets (Group 7 Inc., 1972; McPhar, 1973; Geonomics Inc., 1976). These data are used to help define the electrical structure in the reservoir region. Some of the data were reinterpreted using computer models, and interpretations from the various surveys were

117

Direct-Current Resistivity At Honokowai Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Honokowai Area (Thomas, 1986) Honokowai Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Honokowai Area (Thomas, 1986) Exploration Activity Details Location Honokowai Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not useful DOE-funding Unknown Notes Three Schlumberger resistivity surveys were attempted on the alluvial plain around Honokowai (Fig. 22). Two of the soundings penetrated to a moderate-resistivity basement, interpreted to be seawater-saturated basalt, whereas the other sounding encountered a high-resistivity intermediate layer which could not be adequately penetrated to allow resolution of the basement resistivity (Mattice, 1981). References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In

118

Direct-Current Resistivity Survey At Honokowai Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

Honokowai Area (Thomas, 1986) Honokowai Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Honokowai Area (Thomas, 1986) Exploration Activity Details Location Honokowai Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not useful DOE-funding Unknown Notes Three Schlumberger resistivity surveys were attempted on the alluvial plain around Honokowai (Fig. 22). Two of the soundings penetrated to a moderate-resistivity basement, interpreted to be seawater-saturated basalt, whereas the other sounding encountered a high-resistivity intermediate layer which could not be adequately penetrated to allow resolution of the basement resistivity (Mattice, 1981). References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In

119

Direct-Current Resistivity Survey At Stillwater Area (Laney, 2005) | Open  

Open Energy Info (EERE)

Stillwater Area (Laney, 2005) Stillwater Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Stillwater Area (Laney, 2005) Exploration Activity Details Location Stillwater Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes Structural Controls, Alteration, Permeability and Thermal Regime of Dixie Valley from New-Generation Mt/Galvanic Array Profiling, Phillip Wannamaker. A new-generation MT/DC array resistivity measurement system was applied at the Dixie Valley thermal area. Basic goals of the survey are 1), resolve a fundamental structural ambiguity at the Dixie Valley thermal area (single rangefront fault versus shallower, stepped pediment; 2), delineate fault

120

The effects of direct-current magnetic fields on turtle retinas vitro  

SciTech Connect (OSTI)

Direct-current magnetic fields of 10 to 100 gauss cause a significant short-term reduction of the in vitro electroretinographic b-wave response in turtle retina. This response compression is not accompanied by the usual reduction in retinal sensitivity that occurs with background illumination. Furthermore, this effect is obtained only briefly after the offset of ambient lighting in the diurnal light-dark cycle of nonhibernating animals.

Raybourn, M.S.

1983-05-13T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Actual Versus Estimated Utility Factor of a Large Set of Privately Owned Chevrolet Volts  

SciTech Connect (OSTI)

In order to determine the overall fuel economy of a plug-in hybrid electric vehicle (PHEV), the amount of operation in charge depleting (CD) versus charge sustaining modes must be determined. Mode of operation is predominantly dependent on customer usage of the vehicle and is therefore highly variable. The utility factor (UF) concept was developed to quantify the distance a group of vehicles has traveled or may travel in CD mode. SAE J2841 presents a UF calculation method based on data collected from travel surveys of conventional vehicles. UF estimates have been used in a variety of areas, including the calculation of window sticker fuel economy, policy decisions, and vehicle design determination. The EV Project, a plug-in electric vehicle charging infrastructure demonstration being conducted across the United States, provides the opportunity to determine the real-world UF of a large group of privately owned Chevrolet Volt extended range electric vehicles. Using data collected from Volts enrolled in The EV Project, this paper compares the real-world UF of two groups of Chevrolet Volts to estimated UF's based on J2841. The actual observed fleet utility factors (FUF) for the MY2011/2012 and MY2013 Volt groups studied were observed to be 72% and 74%, respectively. Using the EPA CD ranges, the method prescribed by J2841 estimates a FUF of 65% and 68% for the MY2011/2012 and MY2013 Volt groups, respectively. Volt drivers achieved higher percentages of distance traveled in EV mode for two reasons. First, they had fewer long-distance travel days than drivers in the national travel survey referenced by J2841. Second, they charged more frequently than the J2841 assumption of once per day - drivers of Volts in this study averaged over 1.4 charging events per day. Although actual CD range varied widely as driving conditions varied, the average CD ranges for the two Volt groups studied matched the EPA CD range estimates, so CD range variation did not affect FUF results.

John Smart; Thomas Bradley; Stephen Schey

2014-04-01T23:59:59.000Z

122

Coulomb contribution to the direct current electrical conductivity of dense partially ionized plasmas  

Science Journals Connector (OSTI)

The Coulomb contribution to the electrical conductivity of partially ionized plasmas is discussed and its general behavior is investigated. Recent experiments on the direct current conductivity in shock wave induced argon and xenon plasmas are analyzed in this context. Within the relaxation time approach the Coulomb contribution is extracted by eliminating the contribution of scattering from neutrals. Alternatively the Coulomb contribution can be calculated directly within linear-response theory. In particular from the latter approach a generalized Spitzer factor is derived for taking into account electron-electron interactions within the relaxation time approximation. Experimental results for the Coulomb contribution to the electrical conductivity are in reasonable agreement with an interpolation formula derived from linear-response theory.

J. R. Adams; N. S. Shilkin; V. E. Fortov; V. K. Gryaznov; V. B. Mintsev; R. Redmer; H. Reinholz; G. Röpke

2007-01-01T23:59:59.000Z

123

Partial discharge measurements on a high voltage direct current mass impregnated paper cable  

SciTech Connect (OSTI)

Partial discharge measurement has been a good tool for the quality assurance of cables under alternating voltage. With the growing interest in High Voltage Direct Current cables it seems therefore logical to extend this technique for use at direct voltage. The paper describes this technique as used on a HVDC cable with mass impregnated paper. The different phases of operation (no load, full load, cooling phase, etc.) are characterized by a different discharge behavior. Special attention is given to the dangerous cooling phase. Models have been developed which can explain the discharge patterns that were measured. This paper gives an insight in the electrical behavior of a HVDC cable with mass impregnated paper insulation.

Jeroense, M.J.P. [NKF KABEL B.V., Delft (Netherlands); Kreuger, F.H. [Delft Univ. of Technology (Netherlands)

1996-12-31T23:59:59.000Z

124

Four-point probe measurements of a direct current potential drop on layered conductive cylinders  

Science Journals Connector (OSTI)

We have determined the steady state electric field due to direct current flowing via point contacts at the cylindrical surface of a uniformly layered conductive rod of finite length. The solution allows one to use four-point probe potential drop measurements to estimate the conductivity or thickness of the layer assuming that the other parameters are known. The electrical potential in the rod has a zero radial derivative at its surface except at the injection and extractions points. This means that the required solution can be expressed in terms of a Green's function satisfying a Neumann boundary condition. Four-point measurements have been made to demonstrate the validity of theoretical results.

Yi Lu; John R Bowler

2012-01-01T23:59:59.000Z

125

How many electric miles do Nissan Leafs and Chevrolet Volts in The EV Project travel?  

SciTech Connect (OSTI)

This paper presents travel statistics and metrics describing the driving behavior of Nissan Leaf and Chevrolet Volt drivers in the EV Project. It specifically quantifies the distance each group of vehicles drives each month. This paper will be published to INL's external website and will be accessible by the general public.

John Smart

2014-05-01T23:59:59.000Z

126

Aerosol-Jet-Printed, 1 Volt HBridge Drive Circuit on Plastic with Integrated Electrochromic Pixel  

E-Print Network [OSTI]

Aerosol-Jet-Printed, 1 Volt HBridge Drive Circuit on Plastic with Integrated Electrochromic Pixel electrochromic (EC) pixel as large as 4 mm2 that is printed on the same substrate. All of the key components, flexible electronics, electrochromic pixel, transistor, capacitor, ion gel 1. INTRODUCTION Printing

Kim, Chris H.

127

Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse  

E-Print Network [OSTI]

Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse Xiaofang Wang filamentation and beam breakup. These results suggest an approach for generating a beam of femtosecond, Me-intensity lasers has made it pos- sible to study extreme physics on a tabletop. Among the studies, the generation

Umstadter, Donald

128

Current-based direct power control of a DFIG under unbalanced grid voltage  

Science Journals Connector (OSTI)

Abstract A novel current-based direct power control (CB-DPC) strategy for a grid-connected doubly-fed induction generator (DFIG) is proposed. The reported control scheme is applicable to DFIG-based variable-speed wind turbines that operate under unbalanced network voltages. The required DFIG rotor voltage for precise regulation of the stator active and reactive output powers and accurate elimination of their inherent pulsations are directly obtained using a nonlinear integral sliding-mode control (ISMC) scheme. Compared with other control methods, the proposed strategy is simpler since it is not based on the symmetrical components theory, does not need multiple synchronous coordinate transformations, and only requires DFIG voltage and current values as its inputs. Constant switching frequency of the rotor-side converter (RSC) is achieved by means of space vector pulse-width modulation (SVPWM) technique. Uncertainties in the parameters of the generator are included in the design. A compensation strategy is also proposed for tracking error mitigation of the powers that occur due to elimination of the chattering phenomena in the ISMC scheme. Simulation results on a 2MW DFIG under different operating conditions are presented to validate the effectiveness and robustness of the proposed method.

Mohammad Farshadnia; Seyed Abbas Taher

2014-01-01T23:59:59.000Z

129

Direct-Current Resistivity Survey At Central Nevada Seismic Zone Region  

Open Energy Info (EERE)

Survey At Central Nevada Survey At Central Nevada Seismic Zone Region (Pritchett, 2004) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then

130

Direct-Current Resistivity At Lahaina-Kaanapali Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

At Lahaina-Kaanapali Area At Lahaina-Kaanapali Area (Thomas, 1986) Exploration Activity Details Location Lahaina-Kaanapali Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Four Schlumberger soundings were performed along the coastal strip adjacent to Lahaina town (Fig. 22). Three of the four soundings were able to detect a moderate to low-resistivity basement that was interpreted to be basalt saturated with seawater at 20degrees C (Mattice, 1981). None of the resistivity sounding data in this area indicated subsurface resistivities lower than could be accounted for by local ambient temperatures (Mattice and Lienert, 1980). References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii

131

Lagrangian Modeling at Sandia National Laboratories: Current Status and Future Directions  

National Nuclear Security Administration (NNSA)

Lagrangian Modeling at Sandia National Laboratories: Lagrangian Modeling at Sandia National Laboratories: Current Status and Future Directions A. C. Robinson, * Martin W. Heinstein, * Guglielmo Scovazzi * * Sandia National Laboratories, New Mexico, 87185 Efficient Lagrangian methodologies for quadrilaterals and hexahedral meshes have been available for a number of years. Mesh generation issues for complex three-dimensional geometries can, however, be a severe limiting factor. Mesh generation for triangular and tetrahedral meshes is readily available, but solid mechanics discretizations on these meshes are not so well established because of problems with locking. We review a relatively new node-based uniform strain element as well as an SUPG stabilized formulation that hold promise for effective simulations

132

Direct-Current Resistivity Survey At Lahaina-Kaanapali Area (Thomas, 1986)  

Open Energy Info (EERE)

Survey At Survey At Lahaina-Kaanapali Area (Thomas, 1986) Exploration Activity Details Location Lahaina-Kaanapali Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Four Schlumberger soundings were performed along the coastal strip adjacent to Lahaina town (Fig. 22). Three of the four soundings were able to detect a moderate to low-resistivity basement that was interpreted to be basalt saturated with seawater at 20degrees C (Mattice, 1981). None of the resistivity sounding data in this area indicated subsurface resistivities lower than could be accounted for by local ambient temperatures (Mattice and Lienert, 1980). References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In

133

Mechanism behind self-sustained oscillations in direct current glow discharges and dusty plasmas  

SciTech Connect (OSTI)

An alternative explanation to the mechanism behind self-sustained oscillations of ions in direct current (DC) glow discharges is provided. Such description is distinguished from the one provided by the fluid models, where oscillations are attributed to the positive feedback mechanism associated with photoionization of particles and photoemission of electrons from the cathode. Here, oscillations arise as consequence of interaction between an ion and the surface charges induced by it at the bounding electrodes. Such mechanism provides an elegant explanation to why self-sustained oscillations occur only in the negative resistance region of the voltage-current characteristic curve in the DC glow discharges. Furthermore, this alternative description provides an elegant explanation to the formation of plasma fireballs in the laboratory plasma. It has been found that oscillation frequencies increase with ion's surface charge density, but at the rate which is significantly slower than it does with the electric field. The presented mechanism also describes self-sustained oscillations of ions in dusty plasmas, which demonstrates that self-sustained oscillations in dusty plasmas and DC glow discharges involve common physical processes.

Cho, Sung Nae [Devices R and D Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., Mt. 14-1 Nongseo-dong, Giheung-gu, Yongin-si, Gyeonggi-do 446-712 (Korea, Republic of)

2013-04-15T23:59:59.000Z

134

Ionization of Group II A Elements in the Direct Current Plasma: Effects of Ionization Potential on Emission Profiles  

Science Journals Connector (OSTI)

Studies of background corrected ion and atom emission profiles of the group IIA elements in the two-electrode direct current plasma show great variation in both vertical and...

Williams, Ronald R; Coleman, Geoffrey N

1981-01-01T23:59:59.000Z

135

Hemodynamic responses in rat brain during transcranial direct current stimulation: a functional near-infrared spectroscopy study  

Science Journals Connector (OSTI)

In the present study, we monitored hemodynamic responses in rat brains during transcranial direct current stimulation (tDCS) using functional near-infrared spectroscopy (fNIRS). Seven...

Han, Chang-Hee; Song, Hyuna; Kang, Yong-Guk; Kim, Beop-Min; Im, Chang-Hwan

2014-01-01T23:59:59.000Z

136

Measuring surface ocean wave height and directional spectra using an Acoustic Doppler Current Profiler from an autonomous underwater vehicle  

E-Print Network [OSTI]

The Acoustic Doppler Current Profiler (ADCP) is a proven technology which is capable of measuring surface wave height and directional information, however it is generally limited to rigid, bottom mounted applications which ...

Haven, Scott

2012-01-01T23:59:59.000Z

137

Clock for and CAMAC hardware for measurement of volt-amphere characteristic of thermionic converter  

SciTech Connect (OSTI)

This paper describes a clock that is controlled by a computer through a CAMAC output-register module. The clock trigger the load of a thermionic converter for measurement of the volt-ampere charecteristic for 10 msec and synchronizes the start of measurement with the phase of the applied voltage. A schemitic diagram of the clock is shown. The clock increases the data-acquisition speed in successive measurement of several VACs with a limited amount of buffer memory.

DZHASHIASHVILI, Yu.N.

1986-09-01T23:59:59.000Z

138

Simulation of an Ar/NH{sub 3} low pressure magnetized direct current discharge  

SciTech Connect (OSTI)

A two-dimensional fluid model has been used to investigate the properties of plasma in an Ar/NH{sub 3} low pressure magnetized direct current discharge. We compared the simulation results with the theoretical and experimental results of the other gas discharge in which the magnetic field is considered. Results that obtained using this method are in good agreement with literature. The simulation results show that the positive ammonia ion density follows the positive argon ion density. The Ar{sub 2}{sup +} density is slightly higher than the Ar{sup +} density at 100 mTorr. The largest ammonia ion is NH{sub 3}{sup +} ion, followed by NH{sub 2}{sup +}, NH{sub 4}{sup +}, and NH{sup +} ions. The contribution of NH{sup +} ions to the density of the positive ammonia ions is marginal. The influence of pressure on the plasma discharge has been studied by simulation, and the mechanisms have been discussed. The average plasma density increases as pressure increased. The plasma density appears to be more inhomogeneous than that at the lower pressure. The ratio of charge particles changed as pressure increased. The Ar{sup +} density is slightly higher than the Ar{sub 2}{sup +} density as the pressure increased. It makes NH{sub 4}{sup +} ratio increase as pressure increased. It shows that the electron temperature drops with rising pressure by numerical calculation.

Li Zhi [School of Science, University of Science and Technology Liaoning, Anshan 114051 (China); School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024 (China); Zhao Zhen [School of Chemistry and Life Science, Anshan Normal University, Anshan 114007 (China); School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051 (China); Li Xuehui [Physiccal Science and Technical College, Dalian University, Dalian 116622 (China)

2013-01-15T23:59:59.000Z

139

Formation of ozone and oxidation of methane in a direct current corona discharge  

E-Print Network [OSTI]

than in the positive corona when using air, while the reverse was observed with oxygen. At low currents and high gas flow rates, the ozone production rate increased linearly with corona current independent of gas flow rate. At high currents... humidity) and positive corona. Their results show: (1) a linear relation between ozone concentration and corona current; (2) an (non- linear) inverse relation between the ozone concentration and air flow; and (3) for a given corona current, the ozone...

Tangirala, Umashanker

1976-01-01T23:59:59.000Z

140

Where do Chevrolet Volt drivers in The EV Project charge when they have the opportunity to charge at work?  

SciTech Connect (OSTI)

This paper investigates where Chevy Volt drivers in the EV Project charge when they have the opportunity to charge at work. Do they charge at home, work, or some other location.

John Smart; Don Scoffield

2014-03-01T23:59:59.000Z

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


141

The case for a directional dark matter detector and the status of current experimental efforts  

E-Print Network [OSTI]

We present the case for a dark matter detector with directional sensitivity. This document was developed at the 2009 CYGNUS workshop on directional dark matter detection, and contains contributions from theorists and ...

Battat, James

142

The Ionization of Neon and Argon by Positive Alkali Ions of Energies from 650 to 2000 Volts  

Science Journals Connector (OSTI)

With an apparatus of new design the study of the ionization of neon and argon by positive alkali ions has been extended to accelerating potentials as high as 2000 volts. The results obtained are in good quantitative agreement with the previous work at the low potentials. In a number of cases the efficiency of ionization reaches a maximum at accelerating potentials less than 2000 volts.

J. Carlisle Mouzon

1932-09-01T23:59:59.000Z

143

Effects of Transcranial Direct Current Stimulation (tDCS) on Human Memory.  

SciTech Connect (OSTI)

Training a person in a new knowledge base or skill set is extremely time consuming and costly, particularly in highly specialized domains such as the military and the intelligence community. Recent research in cognitive neuroscience has suggested that a technique called transcranial direct current stimulation (tDCS) has the potential to revolutionize training by enabling learners to acquire new skills faster, more efficiently, and more robustly (Bullard et al., 2011). In this project, we tested the effects of tDCS on two types of memory performance that are critical for learning new skills: associative memory and working memory. Associative memory is memory for the relationship between two items or events. It forms the foundation of all episodic memories, so enhancing associative memory could provide substantial benefits to the speed and robustness of learning new information. We tested the effects of tDCS on associative memory, using a real-world associative memory task: remembering the links between faces and names. Working memory refers to the amount of information that can be held in mind and processed at one time, and it forms the basis for all higher-level cognitive processing. We investigated the degree of transfer between various working memory tasks (the N-back task as a measure of verbal working memory, the rotation-span task as a measure of visuospatial working memory, and Raven's progressive matrices as a measure of fluid intelligence) in order to determine if tDCS-induced facilitation of performance is task-specific or general.

Matzen, Laura E.; Trumbo, Michael Christopher Stefan

2014-10-01T23:59:59.000Z

144

Causal Analysis of the Inadvertent Contact with an Uncontrolled Electrical Hazardous Energy Source (120 Volts AC)  

SciTech Connect (OSTI)

On September 25, 2013, a Health Physics Technician (HPT) was performing preparations to support a pneumatic transfer from the HFEF Decon Cell to the Room 130 Glovebox in HFEF, per HFEF OI 3165 section 3.5, Field Preparations. This activity involves an HPT setting up and climbing a portable ladder to remove the 14-C meter probe from above ball valve HBV-7. The HPT source checks the meter and probe and then replaces the probe above HBV-7, which is located above Hood ID# 130 HP. At approximately 13:20, while reaching past the HBV-7 valve position indicator switches in an attempt to place the 14-C meter probe in the desired location, the HPT’s left forearm came in contact with one of the three sets of exposed terminals on the valve position indication switches for HBV 7. This resulted in the HPT receiving an electrical shock from a 120 Volt AC source. Upon moving the arm, following the electrical shock, the HPT noticed two exposed electrical connections on a switch. The HPT then notified the HFEF HPT Supervisor, who in turn notified the MFC Radiological Controls Manager and HFEF Operations Manager of the situation. Work was stopped in the area and the hazard was roped off and posted to prevent access to the hazard. The HPT was escorted by the HPT Supervisor to the MFC Dispensary and then preceded to CFA medical for further evaluation. The individual was evaluated and released without any medical restrictions. Causal Factor (Root Cause) A3B3C01/A5B2C08: - Knowledge based error/Attention was given to wrong issues - Written Communication content LTA, Incomplete/situation not covered The Causal Factor (root cause) was attention being given to the wrong issues during the creation, reviews, verifications, and actual performance of HFEF OI-3165, which covers the need to perform the weekly source check and ensure placement of the probe prior to performing a “rabbit” transfer. This resulted in the hazard not being identified and mitigated in the procedure. Work activities with in HFEF-OI-3165 placed the HPT in proximity of an unmitigated hazard directly resulting in this event. Contributing Factor A3B3C04/A4B5C04: - Knowledge Based Error, LTA Review Based on Assumption That Process Will Not Change - Change Management LTA, Risks/consequences associated with change not adequately reviewed/assessed Prior to the pneumatic system being out of service, the probe and meter were not being source checked together. The source check issue was identified and addressed during the period of time when the system was out of service. The corrective actions for this issue resulted in the requirement that a meter and probe be source checked together as it is intended to be used. This changed the activity and required an HPT to weekly, when in use, remove and install the probe from above HBV-7 to meet the requirement of LRD 15001 Part 5 Article 551.5. Risks and consequences associated with this change were not adequately reviewed or assessed. Failure to identify the hazard associated with this change directly contributed to this event.

David E. James; Dennis E. Raunig; Sean S. Cunningham

2014-10-01T23:59:59.000Z

145

Connectivity-Enhanced Route Selection and Adaptive Control for the Chevrolet Volt: Preprint  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory and General Motors evaluated connectivity-enabled efficiency enhancements for the Chevrolet Volt. A high-level model was developed to predict vehicle fuel and electricity consumption based on driving characteristics and vehicle state inputs. These techniques were leveraged to optimize energy efficiency via green routing and intelligent control mode scheduling, which were evaluated using prospective driving routes between tens of thousands of real-world origin/destination pairs. The overall energy savings potential of green routing and intelligent mode scheduling was estimated at 5% and 3% respectively. These represent substantial opportunities considering that they only require software adjustments to implement.

Gonder, J.; Wood, E.; Rajagopalan, S.

2014-09-01T23:59:59.000Z

146

Direct-current substrate bias effects on amorphous silicon sputter-deposited films for thin film transistor fabrication  

SciTech Connect (OSTI)

The effect that direct current (dc) substrate bias has on radio frequency-sputter-deposited amorphous silicon (a-Si) films has been investigated. The substrate bias produces a denser a-Si film with fewer defects compared to unbiased films. The reduced number of defects results in a higher resistivity because defect-mediated conduction paths are reduced. Thin film transistors (TFTs) that were completely sputter deposited were fabricated and characterized. The TFT with the biased a-Si film showed lower leakage (off-state) current, higher on/off current ratio, and higher transconductance (field effect mobility) than the TFT with the unbiased a-Si film.

Jun, Seung-Ik; Rack, Philip D.; McKnight, Timothy E.; Melechko, Anatoli V.; Simpson, Michael L. [Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996-2200 (United States); Molecular Scale Engineering and Nanoscale Technologies Research Group, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

2005-09-26T23:59:59.000Z

147

Current:  

Office of Legacy Management (LM)

OWNE3 (55) OWNE3 (55) -------- past: _--_-------------------- Current: Owner contacted I-J yes ,Fqna; ------------_------------- if yes, date contacted TYPE OF OPEF(ATION ---__-------_____ c] Research & Development -4 Facility Type ci Production scale testing 0 Pilbt Scale 0 Bench Scale Process 0 Theoretical Studies 0 Sample & Analysis C Productian E Disposal/Storage TYPE OF CONTRACi _------_-------_ tlanuf acturi ng University Research Organizaticn q Prime --. _' cl Other information (i.e., cost price, + fixed fee, unit time % material, qtr) ------- ~----~---~~------__--------- YuncOntractor Purchase Order Contract/Purkhase Order # cc-km ----_----~~-----___--------- --------------------------------- OWNEKSHIP: AEC/ME3 AEC/MED GOVT GOUT CONTRACTOR CCNTRACTOR

148

Current:  

Office of Legacy Management (LM)

Qwner contacted n yes Qwner contacted n yes Current: ---------------------L---- if yes, date contacted Research & Development cl Facility Type 0 . Productioff 0 Di 3pcsal /Storage TYPE OF CONTRACT ---------------- q Prime q Subcontractor 0 Purchase Order 0 Other information (i.e. q cast + fixed fee, unit piice, time & material, etr) ------- ------_-----_--------------- 0 Production scale testing 0 Pilot Scale 0 Bench Scale Process a Theoretical Studies Sample & Analysis rcc t O' L~1 q Manufacturing 0 University 0 Research Organization 0 Government Sponsored Facility 0 Other ~--~~---_--__-____--- ' Contract/Purchase Order # __-u~-rc,~~--___~~I_IzI__zpI------------ CONTRACTING PE3IOD: lW/ ------------------ _----__--~-~~--~~_-----~~~~~~~~~~~~~~ ClWNERSHIP:

149

Effect of Low Level Direct Current on in Vivo Tumor Growth in Hamsters  

Science Journals Connector (OSTI)

...The treatment current was provided by a battery powered constant current source. The...in tumor mass with treatment was due to thermal effects from heating caused by passage...in these experiments are not caused by thermal factors. It is noted that under our experimental...

Sharon L. David; Darryl R. Absolom; Charles R. Smith; John Gams; and Morley A. Herbert

1985-11-01T23:59:59.000Z

150

Cancer Stem Cells--Perspectives on Current Status and Future Directions: AACR Workshop on Cancer Stem Cells  

E-Print Network [OSTI]

Cancer Stem Cells--Perspectives on Current Status and Future Directions: AACR Workshop on Cancer Hospital for Sick Children, Toronto, Ontario, Canada; 4 Terry Fox Laboratory BC Cancer Research Center, Vancouver, British Columbia, Canada; 5 Moores University of California San Diego Cancer Center; 6 The Salk

Wahl, Geoffrey M.

151

Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane  

E-Print Network [OSTI]

We present a systematic, multiscale, fully detailed numerical modeling for dynamics of fluid flow and ion transport covering Ohmic, limiting, and overlimiting current regimes in conductance of ion-selective membrane. By ...

Pham, Van Sang

152

Active electron energy distribution function control in direct current discharge using an auxiliary electrode  

SciTech Connect (OSTI)

The electron energy distribution functions are studied in the low voltage dc discharge with a constriction, which is a diaphragm with an opening. The dc discharge glows in helium and is sustained by the electron current emitted from a heated cathode. We performed kinetic simulations of dc discharge characteristics and electron energy distribution functions for different gas pressures (0.8 Torr-4 Torr) and discharge current of 0.1 A. The results of these simulations indicate the ability to control the shape of the electron energy distribution functions by variation of the diaphragm opening radius.

Schweigert, I. V. [Institute of Theoretical and Applied Mechanics, Novosibirsk 630090 (Russian Federation) [Institute of Theoretical and Applied Mechanics, Novosibirsk 630090 (Russian Federation); George Washington University, Washington, DC 20052 (United States); Kaganovich, I. D. [Princeton Plasma Physics Laboratory, Princeton, NJ 08543 (United States)] [Princeton Plasma Physics Laboratory, Princeton, NJ 08543 (United States); Demidov, V. I. [West Virginia University, Morgantown, WV 26506 (United States) [West Virginia University, Morgantown, WV 26506 (United States); St. Petersburg State University, St. Petersburg (Russian Federation)

2013-10-15T23:59:59.000Z

153

Accelerated Status Exceptionally promising current UCI undergraduate Engineering students may petition for streamlined admission directly  

E-Print Network [OSTI]

Accelerated Status Exceptionally promising current UCI undergraduate Engineering students may numbered 200-289. How to Petition: Students are required to submit an Accelerated Status Petition Form) to the Graduate Student Affairs Office (5400 Engineering Hall). Students may join the Accelerated Status at any

Mease, Kenneth D.

154

Accelerated Status Exceptionally promising current UCI undergraduate Engineering students may petition for streamlined admission directly  

E-Print Network [OSTI]

Accelerated Status Exceptionally promising current UCI undergraduate Engineering students may numbered 200-289. How to Petition: Students are required to submit an Accelerated Status Petition Form) to the Graduate Student Affairs Office (305 Rockwell Engineering Center). Students may join the Accelerated Status

Mease, Kenneth D.

155

A novel direct torque control for induction motor drive system with low torque ripple and current distortion utilising FPGA  

Science Journals Connector (OSTI)

The conventional Direct Torque Control (DTC) is known to produce quick and robust response in ac drives. However, during steady state, notable torque and current pulsations occur. They are reflected in speed estimation, torque response and also produce acoustic noise. In this paper, a novel Space Vector Modulated Direct Torque Control (SVM-DTC) with Low Pass Filter (LPF) for induction motor drive system is proposed, which features low torque ripple, low current distortion and fixed switching frequency. The proposed scheme has been implemented on the Xilinx Spartan 3E FPGA, both simulation and experimental results show that the proposed system can dramatically improve the steady state performance while preserving the dynamic performance of the conventional DTC.

R. Rajendran; N. Devarajan

2013-01-01T23:59:59.000Z

156

Contracting Polymer with Current  

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

Contracting Polymer with Current Contracting Polymer with Current Name: Ian Status: student Grade: 9-12 Location: PA Country: USA Date: Summer 2011 Question: Hello and thank you in advance. I have previously read of a material ( a kind of "rubber") that contracts when an electric current is applied. My question is what is this material, how does it work/what is it made of? Thank you very much. Replies: Hi Ian, I believe the material you are referring to is a kind of piezoelectric rubber. Piezoelectric materials (usually they are special types of ceramics or crystals) produce an electrical voltage when compressed of otherwise subjected to stress. They also do the opposite... they slightly expand or contract when a voltage is applied. But the amount they expand or contract is very small indeed. For example, one square meter of the recently discovered piezoelectric rubber materials typically contracts a mere 100 picometers for ever applied volt. Translated into everyday measurements, this means that if you apply a voltage of 1 Volt to a one foot long piece of this rubber, it will only contract less than half a billionth of an inch! Applying 100 volts will cause it to contract just under 50 billionths of an inch!

157

Direct  

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

interactions, and the pollutant emission is hence directly proportional to the bulk neutral density. Simultaneously monitoring the total emission at 1040 nm and the...

158

A 4000-A HVDC (high-voltage direct-current) circuit breaker with fast fault-clearing capability: Final report  

SciTech Connect (OSTI)

This project is a follow-up of the first development of a 500 kV HVDC airblast circuit breaker (EPRI project 1507-3). The objective was to increase the current interrupting capability from 2200 A to 4000 A and shorten its fault clearing time. A high current 500 kV HVDC circuit breaker has been built using the passive commutation circuit. The breaker is modular in construction and can be designed for a wide variety of system conditions. More than 400 current interruptions were carried out successfully. Tests have shown that this circuit breaker is capable of interrupting more than 4000 A dc. Practical breakers with current interrupting capability of even 5500 A dc could be built. The circuit breaker operation and the fault-clearing process can be materially speeded up if the trip signal is given as soon as the fault is detected and without waiting for the current levels to come down in response to converter control action. The new dc breakers are shown to be capable of withstanding these transient arc currents of 8000 A without affecting its ability to interrupt the direct current that follows the transient. This transient current withstand capability is greater than is likely to occur during dc faults. The fault clearing time of this HVDC circuit breaker is comparable to the fault clearing time of conventional ac breakers for ac faults. The developed HVDC circuit breaker is now commercially available and can be supplied for use in HVDC systems. Its use in such systems is expected to provide flexibility in system design and contribute to system stability. 38 refs., 52 figs., 9 tabs.

Not Available

1988-04-01T23:59:59.000Z

159

First-cut design of an all-superconducting 100-T direct current magnet  

SciTech Connect (OSTI)

A 100-T magnetic field has heretofore been available only in pulse mode. This first-cut design demonstrates that a 100-T DC magnet (100?T) is possible. We base our design on: Gadolinium-based coated superconductor; a nested-coil formation, each a stack of double-pancake coils with the no-insulation technique; a band of high-strength steel over each coil; and a 12-T radial-field limit. The 100?T, a 20?mm cold bore, 6-m diameter, 17-m height, with a total of 12?500-km long superconductor, stores an energy of 122 GJ at its 4.2-K operating current of 2400?A. It requires a 4.2-K cooling power of 300?W.

Iwasa, Yukikazu, E-mail: iwasa@jokaku.mit.edu; Hahn, Seungyong [Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 170 Albany Street, Cambridge, Massachusetts 02139 (United States)] [Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 170 Albany Street, Cambridge, Massachusetts 02139 (United States)

2013-12-16T23:59:59.000Z

160

The effect of a direct current field on the microparticle charge in the plasma afterglow  

SciTech Connect (OSTI)

Residual charges of individual microparticles forming dense clouds were measured in a RF discharge afterglow. Experiments were performed under microgravity conditions on board the International Space Station, which ensured particle levitation inside the gas volume after the plasma switch-off. The distribution of residual charges as well as the spatial distribution of charged particles across the cloud were analyzed by applying a low-frequency voltage to the electrodes and measuring amplitudes of the resulting particle oscillations. Upon “free decharging” conditions, the charge distribution had a sharp peak at zero and was rather symmetric (with charges concentrated between ?10e and +10e), yet positively and negatively charged particles were homogeneously distributed over the cloud. However, when decharging evolved in the presence of an external DC field (applied shortly before the plasma switch-off) practically all residual charges were positive. In this case, the overall charge distribution had a sharp peak at about +15e and was highly asymmetric, while the spatial distribution exhibited a significant charge gradient along the direction of the applied DC field.

Wörner, L. [Max Planck Institute for extraterrestrial Physics, P.O. Box 1312, Giessenbachstr., 85741 Garching (Germany) [Max Planck Institute for extraterrestrial Physics, P.O. Box 1312, Giessenbachstr., 85741 Garching (Germany); Groupe de Recherches sur l'Energétique des Milieux Ionisés, UMR7344, CNRS, Univ. Orléans, F-45067 Orléans (France); Ivlev, A. V.; Huber, P.; Hagl, T.; Thomas, H. M.; Morfill, G. E. [Max Planck Institute for extraterrestrial Physics, P.O. Box 1312, Giessenbachstr., 85741 Garching (Germany)] [Max Planck Institute for extraterrestrial Physics, P.O. Box 1312, Giessenbachstr., 85741 Garching (Germany); Couëdel, L. [Centre National de la Recherche Scientifique, Aix-Marseille-Université, Laboiratoire de Physique des Intéractions Ioniques et Moléculaires, UMR 7345, 13397 Marseille cedex 20 (France)] [Centre National de la Recherche Scientifique, Aix-Marseille-Université, Laboiratoire de Physique des Intéractions Ioniques et Moléculaires, UMR 7345, 13397 Marseille cedex 20 (France); Schwabe, M. [Max Planck Institute for extraterrestrial Physics, P.O. Box 1312, Giessenbachstr., 85741 Garching (Germany) [Max Planck Institute for extraterrestrial Physics, P.O. Box 1312, Giessenbachstr., 85741 Garching (Germany); Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720 (United States); Mikikian, M.; Boufendi, L. [Groupe de Recherches sur l'Energétique des Milieux Ionisés, UMR7344, CNRS, Univ. Orléans, F-45067 Orléans (France)] [Groupe de Recherches sur l'Energétique des Milieux Ionisés, UMR7344, CNRS, Univ. Orléans, F-45067 Orléans (France); Skvortsov, A. [Yuri Gagarin Cosmonauts Training Center, RU-141160 Star City (Russian Federation)] [Yuri Gagarin Cosmonauts Training Center, RU-141160 Star City (Russian Federation); Lipaev, A. M.; Molotkov, V. I.; Petrov, O. F.; Fortov, V. E. [Joint Institute for High Temperatures, RU-125412 Moscow (Russian Federation)] [Joint Institute for High Temperatures, RU-125412 Moscow (Russian Federation)

2013-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Current status, architecture, and future directions for the international space station electric power system  

SciTech Connect (OSTI)

The Electric Power System (EPS) on the International Space Station Alpha has undergone several significant changes over the last year, as major design decisions have been made for the overall station. While the basic topology and system elements have remained as they were under the Freedom program, there are important differences in connectivity, assembly sequence, and start-up. The key drivers for these changes in architecture have been the goal to simplify verification, and most significantly, the introduction of extensive Russian participation in the program. Having the Russians join the international community in this project has resulted in an expanded station size, larger crew, and almost doubled the observable surface of the earth covered by the station. For the power system it has meant additional interfaces for power transfer, and new challenges for solar tracking at the higher inclination orbit. This paper reviews the current architecture and emphasizes the new features that have evolved, as the design for the new, larger station has developed. Additionally, the possible application of developing technology to the station, and other future missions is considered.

Gholdston, E.; Hartung, J.; Friefeld, J. [Rockwell International, Canoga Park, CA (United States). Rocketdyne Division

1995-12-31T23:59:59.000Z

162

EIS-0450: TransWest Express 600 kV Direct Current Transmission Project in Wyoming, Colorado, Utah, and Nevada  

Broader source: Energy.gov [DOE]

This EIS, being prepared jointly by DOE’s Western Area Power Administration and the Department of the Interior’s Bureau of Land Management (Wyoming State Office), evaluates the environmental impacts of granting a right-of-way for the TransWest Express 600-kilovolt Direct Current Transmission Project and amending a land use plan. The project consists of an overhead transmission line that would extend approximately 725 miles from south-central Wyoming, through Colorado and Utah. Western proposes to be a joint owner of the project.

163

Recommended practice for fire protection for electric generating plants and high voltage direct current converter stations. 2005 ed.  

SciTech Connect (OSTI)

The standard outlines fire safety recommendations for gas, oil, coal, and alternative fuel electric generating plants including high voltage direct current converter stations and combustion turbine units greater than 7500 hp used for electric generation. Provisions apply to both new and existing plants. The document provides fire prevention and fire protection recommendations for the: safety of construction and operating personnel; physical integrity of plant components; and continuity of plant operations. The 2005 edition includes revisions and new art that clarify existing provisions. 5 annexes.

NONE

2005-07-01T23:59:59.000Z

164

Theoretical investigation of the effect of hydrogen addition on the formation and properties of soliton in direct current argon plasma  

SciTech Connect (OSTI)

In this study the effect of hydrogen addition on the formation and properties of soliton in direct-current (DC) argon plasma is theoretically investigated. By coupling fluid equations with Poisons equation for such multi-component plasma, the Mach number and amplitude of the soliton are determined following pseudo potential method. Addition of hydrogen in argon discharge leads to the decrease of electron, Ar{sup +} ion density while a reverse trend was observed for ArH{sup +} and hydrogen like ions. It was found that presence of hydrogen like ions in argon plasma affects the formation of soliton with its amplitude significantly decreases as concentration of hydrogen increases. On the other hand, increase in ion to electron temperature ratios of the lighter ions in the discharge also has a significant influence on the amplitude and formation of soliton. The inverse relation between solitons width and amplitude is found to be consistent for the entire range of study.

Saikia, P., E-mail: partha.008@gmail.com; Goswami, K. S.; Saikia, B. K. [Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, Kamrup, Assam-782 402 (India)] [Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, Kamrup, Assam-782 402 (India)

2014-03-15T23:59:59.000Z

165

Power-One produces the industry's broadest selection of linear power supplies with output voltages from 5 volts through 250 volts. Rugged  

E-Print Network [OSTI]

-A 5V @ 9A (Note 1,5) N 5V HD5-12/OVP-A 5V @ 12A (Note 1,5) D HE5-18/OVP-A 5V @ 18A (Note 1,5) E F5 regulatory standards, and is CE Marked to the Low Voltage Directive (LVD). INTERNATIONAL SERIES LINEARS marked to Low Voltage Directive · 100% Burn-In · 2 Year Warranty · Overvoltage Protection (OVP) Standard

Berns, Hans-Gerd

166

Direct and indirect capture of carriers into the lasing ground state and the light-current characteristic of quantum dot lasers  

SciTech Connect (OSTI)

We calculate the light-current characteristic (LCC) of a quantum dot (QD) laser under the conditions of both direct and indirect capture of carriers from the optical confinement layer into the lasing ground state in QDs. We show that direct capture is a dominant process determining the ground-state LCC. Only when direct capture is slow, the role of indirect capture (capture into the QD excited state and subsequent intradot relaxation to the ground state) becomes important.

Wu, Yuchang, E-mail: yuchangw@vt.edu; Asryan, Levon V., E-mail: asryan@vt.edu [Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 (United States)

2014-03-14T23:59:59.000Z

167

Electron-Atom Superelastic Scattering in Magnesium at Millielectron Volt Energies T. Baynard, A. C. Reber, R. F. Niedziela,| S. A. Darveau, B. Prutzman,# and R. S. Berry*,  

E-Print Network [OSTI]

Electron-Atom Superelastic Scattering in Magnesium at Millielectron Volt Energies T. Baynard, A. C energy dependence of magnesium from threshold to 1400 eV10 with an energy resolution of 250 meV. Similar

Berry, R. Stephen

168

Optimization of Solar Cell Design for Use with GreenVolts CPV System: Cooperative Research and Development Final Report, CRADA Number CRD-08-00281  

SciTech Connect (OSTI)

GreenVolts, a Bay area start-up, was developing a CPV system that was based on a unique reflective optical design. They were interested in adapting the inverted GaInP/GaAs/GaInAs cell structure designed at NREL for use in their system. The purpose of this project was to optimize the inverted GaInP/GaAs/GaInAs cell for operation in the GreenVolts optical system.

Ward, S.

2011-05-01T23:59:59.000Z

169

Comparisons of complex network based models and direct current power flow model to analyze power grid vulnerability under intentional attacks  

Science Journals Connector (OSTI)

Abstract Many scholars have applied complex network based models to investigate power grid vulnerability, but how effective are these models to capture the real performance is an interesting topic. This paper selects two typical complex network based models, including a purely topological model (PTM) and a betweenness based model (BBM), as well as a direct current power flow model (DCPFM), to simulate the topology-based and flow-based vulnerability of power grid under degree, betweenness, maximum traffic and importance based intentional attacks. The relationships of vulnerability results from different models are analyzed and discussed for model comparisons. Taking IEEE 300 power grid with line capacity set proportional to tolerant parameter tp as example, the results show that there exists a critical node attack intensity A I = 0.147 , above which the three models produce almost identical topology-based vulnerability results under each attack strategy at any t p ? 1 , while producing identical flow-based vulnerability results from PTM and DCPFM occurs at A I > 0.147 , and A I > 0.73 for BBM and DCPFM, which indicates that the PTM can better approach the DCPFM for flow-based vulnerability analysis under intentional attacks. Similar results are also found for intentional edge attacks and other power grids.

Min Ouyang; Lijing Zhao; Zhezhe Pan; Liu Hong

2014-01-01T23:59:59.000Z

170

Epidemiologic study of Holstein dairy cow performance and reproduction near a high-voltage direct - current powerline  

SciTech Connect (OSTI)

The development and operation of a high-voltage direct-current (HVDC) transmission line in rural Minnesota generated public concern over potential adverse effects to nearby residents and their livestock. Electrical parameters near an HVDC line decline rapidly with distance, but effects on ambient space charge have been detected out to 1 mile. To identify potential adverse effects of HVDC line operation on livestock, case-control and cohort study methods were used to examine various indices of Holstein performance in relation to distance from the line and the onset of line operation. It was believed that these indices would reflect changes in physiologic function or overt health effects that might arise from the HVDC environment. High-quality performance data from existing Dairy Herd Improvement Association (DHIA) records were obtained for 97% of qualifying herds located within 10 miles of the line. The large number of animals and years of observation provided high statistical power to detect even small systematic changes in performance. No significant differences in milk production or reproductive capacity were associated with presumed exposure to the HVDC environment. The absence of measurable effects in a large sentinel animal population may have implications for the assessment of human health risks related to HVDC transmission lines.

Martin, F.B.; Bender, A.; Steuernagel, G.; Robinson, R.A.; Revsbech, R.; Sorensen, D.K.; Williamson, N.; Williams, A.

1986-01-01T23:59:59.000Z

171

Comparisons of purely topological model, betweenness based model and direct current power flow model to analyze power grid vulnerability  

Science Journals Connector (OSTI)

This paper selects three frequently used power grid models including a purely topological model (PTM) a betweennness based model (BBM) and a direct current power flow model (DCPFM) to describe three different dynamical processes on a power grid under both single and multiple component failures. Each of the dynamical processes is then characterized by both a topology-based and a flow-based vulnerability metrics to compare the three models with each other from the vulnerability perspective. Taking as an example the IEEE 300 power grid with line capacity set proportional to a tolerance parameter tp the results show non-linear phenomenon: under single node failures there exists a critical value of tp?=?1.36 above which the three models all produce identical topology-based vulnerability results and more than 85% nodes have identical flow-based vulnerability from any two models; under multiple node failures that each node fails with an identical failure probability fp there exists a critical fp?=?0.56 above which the three models produce almost identical topology-based vulnerability results at any tp???1 but producing identical flow-based vulnerability results only occurs at fp?=?1. In addition the topology-based vulnerability results can provide a good approximation for the flow-based vulnerability under large fp and the priority of PTM and BBM to better approach the DCPFM for vulnerability analysis mainly depends on the value of fp. Similar results are also found for other failure types other system operation parameters and other power grids.

2013-01-01T23:59:59.000Z

172

Implementation of non-intrusive energy saving estimation for Volt/VAr control of smart distribution system  

Science Journals Connector (OSTI)

Abstract There has been a growing interest among power distribution utilities to explore smart grid technologies to improve the operational efficiency and reliability. As electricity distribution grid is evolving to become “smart”, energy demand reduction is one of the goals for the distribution utilities. In order to obtain this goal, utilities need to commit significant financial resources. Therefore, it became important to assess the benefit of new technologies such as Volt/VAr control (VVC). To compute the energy savings due to VVC implementation, existing algorithms are intrusive, and generally require altering the distribution system control settings and operating points, which is undesirable for system operator. On the other hand, these may require large amount of historical data. In this paper, implementation of a new non-intrusive energy saving estimation algorithm has been presented for integrated Volt/VAr control by Avista Utilities in Northwest USA. Developed algorithm utilizes measurements from smart distribution system. Develop algorithm allows studying the energy saving in long term as it requires no change in control settings of actual distribution system. Satisfactory results have been obtained and validated against field data from experiments on real feeders by Avista Utilities.

S. Chanda; F. Shariatzadeh; A. Srivastava; E. Lee; W. Stone; J. Ham

2014-01-01T23:59:59.000Z

173

A new HBMO algorithm for multiobjective daily Volt/Var control in distribution systems considering Distributed Generators  

Science Journals Connector (OSTI)

In recent years, Distributed Generators (DGs) connected to the distribution network have received increasing attention. The connection of enormous \\{DGs\\} into existing distribution network changes the operation of distribution systems. Because of the small X/R ratio and radial structure of distribution systems, \\{DGs\\} affect the daily Volt/Var control. This paper presents a new algorithm for multiobjective daily Volt/Var control in distribution systems including Distributed Generators (DGs). The objectives are costs of energy generation by \\{DGs\\} and distribution companies, electrical energy losses and the voltage deviations for the next day. A new optimization algorithm based on a Chaotic Improved Honey Bee Mating Optimization (CIHBMO) is proposed to determine the active power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. Since objectives are not the same, a fuzzy system is used to calculate the best solution. The plausibility of the proposed algorithm is demonstrated and its performance is compared with other methods on a 69-bus distribution feeder. Simulation results illustrate that the proposed algorithm has better outperforms the other algorithms.

Taher Niknam

2011-01-01T23:59:59.000Z

174

Currently, there is a substantial research and development effort directed toward optical signal processing and electronic signal processing for fiber-optic communications. Much of the work  

E-Print Network [OSTI]

Abstract Currently, there is a substantial research and development effort directed toward optical signal processing and electronic signal processing for fiber-optic communications. Much of the work for telecommunication services. For optical signal proc- essing, a variety of approaches are available for implementing

Wu, Shin-Tson

175

A new approach based on ant colony optimization for daily Volt/Var control in distribution networks considering distributed generators  

Science Journals Connector (OSTI)

This paper presents a new approach to daily Volt/Var control in distribution systems with regard to distributed generators (DGs). Due to the small X/R ratio and radial configuration of distribution systems, \\{DGs\\} have much impact on this problem. A cost-based compensation methodology is proposed as a proper signal to encourage owners of \\{DGs\\} in active and reactive power generation. An evolutionary method based on ant colony optimization (ACO) is used to determine the active and reactive power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. The results indicate that the proposed encouraging factor has improved the performance of distribution networks on a large scale.

Taher Niknam

2008-01-01T23:59:59.000Z

176

Abstract--Circuit breakers are crucial components for power system operation. The currently adapted time-directed  

E-Print Network [OSTI]

1 Abstract--Circuit breakers are crucial components for power system operation. The currently be This work was supported in part by Mitsubishi Electric Research Laboratories and PSerc consortium, an NSF I used to select the most appropriate maintenance strategy. During the maintenance or repair work

177

Lightweight PV Inverters: Dual Bi-Directional IGBTs Modules Enables Breakthrough PV Inverter Using Current Modulation Topology  

SciTech Connect (OSTI)

Solar ADEPT Project: PV inverters convert DC power generated by modules into usable AC power. IPC’s initial 30kW 94lb. PV inverter reduces the weight of comparable 30kW PV inverters by 90%—reducing the cost of materials, manufacturing, shipping, and installation. With ARPA-E support, new bi-directional silicon power switches will be developed, commercialized, and utilized in IPC’s next-generation PV inverter. With these components, IPC will produce 100kW inverters that weight less than 100lb., reducing the weight of conventional 3,000lb. 100kW inverters by more than 95%. The new power switches will cut IPC’s $/W manufacturing cost in half, as well as further reduce indirect shipping and installation costs.

None

2012-01-30T23:59:59.000Z

178

Exposure information in environmental health research: Current opportunities and future directions for particulate matter, ozone, and toxic air pollutants  

SciTech Connect (OSTI)

Understanding and quantifying outdoor and indoor sources of human exposure are essential but often not adequately addressed in health-effects studies for air pollution. Air pollution epidemiology, risk assessment, health tracking and accountability assessments are examples of health-effects studies that require but often lack adequate exposure information. Recent advances in exposure modeling along with better information on time-activity and exposure factors data provide us with unique opportunities to improve the assignment of exposures for both future and ongoing studies linking air pollution to health impacts. In September 2006, scientists from the US Environmental Protection Agency (EPA) and the Centers for Disease Control and Prevention (CDC) along with scientists from the academic community and state health departments convened a symposium on air pollution exposure and health in order to identify, evaluate, and improve current approaches for linking air pollution exposures to disease. This manuscript presents the key issues, challenges and recommendations identified by the exposure working group, who used cases studies of particulate matter, ozone, and toxic air pollutant exposure to evaluate health-effects for air pollution. One of the over-arching lessons of this workshop is that obtaining better exposure information for these different health-effects studies requires both goal-setting for what is needed and mapping out the transition pathway from current capabilities to meeting these goals. Meeting our long-term goals requires definition of incremental steps that provide useful information for the interim and move us toward our long-term goals. Another over-arching theme among the three different pollutants and the different health study approaches is the need for integration among alternate exposure assessment approaches. For example, different groups may advocate exposure indicators, biomonitoring, mapping methods (GIS), modeling, environmental media monitoring, and/or personal exposure modeling. However, emerging research reveals that the greatest progress comes from integration among two or more of these efforts.

McKone, Thomas E.; Ryan, P. Barry; Ozkaynak, Haluk

2007-02-01T23:59:59.000Z

179

Interactive multiobjective daily volt/var control of distribution networks considering wind power and fuel-cell power plants  

Science Journals Connector (OSTI)

This paper deals with a multiobjective daily volt/var control (MDVVC) for radial distribution feeders integrated renewable energy sources (RES) by means of the tap position of the under load tap changer (ULTC) transformers shunt capacitors and active and reactive power of RES. The multiple objective functions to be minimized are the electrical energy losses the voltage deviations and the total emissions of RES and substations. Discrete behavior of equipments in the distribution systems and nonlinear power flow equations change the VVC problem into a mixed integer non-linear programming (MINLP). Hence a new optimization method based upon the shuffled frog leaping algorithm (SFLA) is presented to solve the optimization problem. The SFLA is modified for resolving the disadvantages of the original algorithm. Besides of accurately passing local optima the MSFLA takes less time to achieve the optimal response. Furthermore the tribe-MSFLA is proposed through using the concept of the tribe. Dealing with the multiobjective optimization problem an interactive fuzzy satisfying method is used while the objective functions are formulated by a fuzzy set theory. An 85-bus radial distribution system is used to test and assess the performance of the proposed algorithm.

Taher Niknam; Mohsen Zare; Jamshid Aghaei; Rasoul Azizipanah-Abarghooee

2012-01-01T23:59:59.000Z

180

Low resistivity Ga-doped ZnO thin films of less than 100 nm thickness prepared by ion plating with direct current arc discharge  

SciTech Connect (OSTI)

Low resistivity Ga-doped ZnO films were prepared on a glass substrate by ion plating with direct current arc discharge. Thickness dependent changes in the electrical properties of the films are reported, focusing on the thin films of less than 100 nm thickness. Structural analyses showed that the thinnest film of 30 nm thickness consists of well-oriented columnar grains normal to the substrate, and the resistivity was as low as 4.4x10{sup -4} {omega} cm. The changes in lattice strain and c-axis fluctuation with the growth of grains are also shown to be associated with the electrical properties.

Yamada, Takahiro; Miyake, Aki; Kishimoto, Seiichi; Makino, Hisao; Yamamoto, Naoki; Yamamoto, Tetsuya [Kochi University of Technology, 185, Miyanokuchi, Tosayamada, Kami, Kochi 782-8502 (Japan)

2007-07-30T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Chevrolet Volt Vehicle Demonstration  

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

8.2 Overall AC electrical energy consumption (AC Whmi) 157 Average Trip Distance 12.3 Total distance traveled (mi) 407,245 Average Ambient Temperature (deg F) 67.9 Electric...

182

Chevrolet Volt Vehicle Demonstration  

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

70.1 Overall AC electrical energy consumption (AC Whmi) 169 Average Trip Distance 12.3 Total distance traveled (mi) 2,817,365 Average Ambient Temperature (deg F) 62.4 Electric...

183

OMNI SMARTPUMP: DIRECT CURRENT POWERED  

E-Print Network [OSTI]

completed grant projects. The purpose of the FAR is to provide a concise summary and independent assessment Program, please visit the Commission's Web site at http://www.energy.ca.gov/research/index.html. #12;Page

184

Direct current power transmission systems  

SciTech Connect (OSTI)

This book represents text on HVDC transmission available. It deals with the various aspects of the state of the art in HVDC transmission technology. This book presents many aspects of interactions of AC/DC systems. Modeling and analysis of DC systems are also discussed in detail.

Padiyar, K.R.

1991-01-01T23:59:59.000Z

185

(1) Telegraphy (2) Continuous and Alternating Current Machinery An Elementary Text—book for use in Technical Schools (3) Laboratory Manual, Direct and Alternating Current (4) Transmission Line Formulas for Electrical Engineers and Engineering Students (5) Wireless Telegraphy (6) Incandescent Electric Lamps and Their Application  

Science Journals Connector (OSTI)

... the various kinds of electrical machinery now in use. Although the treatment is of an elementary kind and includes very few formulas, it is very thorough. It discusses all the ... special circumstances we should never think of using i io—volt mains for measuring the resistance of a yard or two of wire or of the armature of a dynamo, ...

DAVID ROBERTSON

1914-10-08T23:59:59.000Z

186

Lower Hybrid Heating and Current Drive on the Alcator C-Mod Tokamak  

SciTech Connect (OSTI)

On the Alcator C-Mod tokamak, lower hybrid current drive (LHCD) is being used to modify the current profile with the aim of obtaining advanced tokamak (AT) performance in plasmas with parameters similar to those that would be required on ITER. To date, power levels in excess of 1 MW at a frequency of 4.6 GHz have been coupled into a variety of plasmas. Experiments have established that LHCD on C-Mod behaves globally as predicted by theory. Bulk current drive efficiencies, n20IlhR/Plh ~ 0.25, inferred from magnetics and MSE are in line with theory. Quantitative comparisons between local measurements, MSE, ECE and hard x-ray bremsstrahlung, and theory/simulation using the GENRAY, TORIC-LH CQL3D and TSC-LSC codes have been performed. These comparisons have demonstrated the off-axis localization of the current drive, its magnitude and location dependence on the launched n|| spectrum, and the use of LHCD during the current ramp to save volt-seconds and delay the peaking of the current profile. Broadening of the x-ray emission profile during ICRF heating indicates that the current drive location can be controlled by the electron temperature, as expected. In addition, an alteration in the plasma toroidal rotation profile during LHCD has been observed with a significant rotation in the counter current direction. Notably, the rotation is accompanied by peaking of the density and temperature profiles on a current diffusion time scale inside of the half radius where the LH absorption is taking place.

R. Wilson, R. Parker, M. Bitter, P.T. Bonoli, C. Fiore, R.W. Harvey, K. Hill, A.E. Hubbard, J.W. Hughes, A. Ince-Cushman, C. Kessel, J.S. Ko, O. Meneghini, C.K. Phillips, M. Porkolab, J. Rice, A.E. Schmidt, S. Scott,S. Shiraiwa, E. Valeo, G.Wallace, J.C. Wright and the Alcator C-Mod Team

2009-11-20T23:59:59.000Z

187

Self consistent radio-frequency wave propagation and peripheral direct current plasma biasing: Simplified three dimensional non-linear treatment in the 'wide sheath' asymptotic regime  

SciTech Connect (OSTI)

A minimal two-field fluid approach is followed to describe the radio-frequency (RF) wave propagation in the bounded scrape-off layer plasma of magnetic fusion devices self-consistently with direct current (DC) biasing of this plasma. The RF and DC parts are coupled by non-linear RF and DC sheath boundary conditions at both ends of open magnetic field lines. The physical model is studied within a simplified framework featuring slow wave (SW) only and lateral walls normal to the straight confinement magnetic field. The possibility is however kept to excite the system by any realistic 2D RF field map imposed at the outer boundary of the simulation domain. The self-consistent RF + DC system is solved explicitly in the asymptotic limit when the width of the sheaths gets very large, for several configurations of the RF excitation and of the target plasma. In the case of 3D parallelepipedic geometry, semi-analytical results are proposed in terms of asymptotic waveguide eigenmodes that can easily be implemented numerically. The validity of the asymptotic treatment is discussed and is illustrated by numerical tests against a quantitative criterion expressed from the simulation parameters. Iterative improvement of the solution from the asymptotic result is also outlined. Throughout the resolution, key physical properties of the solution are presented. The radial penetration of the RF sheath voltages along lateral walls at both ends of the open magnetic field lines can be far deeper than the skin depth characteristic of the SW evanescence. This is interpreted in terms of sheath-plasma wave excitation. Therefore, the proper choice of the inner boundary location is discussed as well as the appropriate boundary conditions to apply there. The asymptotic scaling of various quantities with the amplitude of the input RF excitation is established.

Colas, L.; Jacquot, J.; Hillairet, J.; Goniche, M. [CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France); Heuraux, S.; Faudot, E. [IJL-P2M UMR 7198 CNRS, F-54506 Vandoeuvre les Nancy (France); Crombe, K. [Department of Applied Physics, Ghent University, B-9000 Ghent (Belgium); Kyrytsya, V. [LPP-ERM/KMS, Association Euratom-'Belgian State', TEC Partner, Brussels (Belgium)

2012-09-15T23:59:59.000Z

188

Electric Currents Electric Current  

E-Print Network [OSTI]

coefficient of resistivity Electric Power: = = = Also, = . So, = = 2 = 2 Unit of Power(P): Watt (WChapter 18 Electric Currents #12;Electric Current: Flow of electric charge Current is flow of positive charge. In reality it's the electron moves in solids- Electron current. #12;Ohm's Law : Resistance

Yu, Jaehoon

189

News and Views  

Science Journals Connector (OSTI)

... station at a pressure of 100,000 volts, and from thence is retransmitted to the substations situated along the line at 22,000 volts. At the ... situated along the line at 22,000 volts. At the substations the pressure is reduced and then converted into direct current at the working pressure of ...

1928-03-03T23:59:59.000Z

190

Figures of merit for focusing mega-electron-volt ion beams in biomedical imaging and proton beam writing  

SciTech Connect (OSTI)

A figure of merit (FOM) has been developed for focusing quadrupole multiplet lenses for ion micro- and nanobeam systems. The method which is based on measurement of the central peak of the two-dimensional autocorrelation function of an image provides separate FOM for the horizontal and vertical directions. The approach has been tested by comparison with the edge widths obtained by nonlinear fitting the edge widths of a Ni grid and found to be reliable. The FOM has the important advantage for ion beam imaging of biomedical samples that the fluence needed is considerably lower than for edge fitting.

Ren Minqin; Whitlow, Harry J.; Ananda Sagari, A. R.; Kan, Jeroen A. van; Osipowicz, Thomas; Watt, Frank [Department of Physics, University of Jyvaeskylae, P.O. Box 35 (YFL), FIN-40014 (Finland); Centre for Ion Beam Applications, Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542 (Singapore)

2008-01-01T23:59:59.000Z

191

Transient Signal Analysis is a digital device testing method that is based on the analysis of volt-age transients at multiple test points. In this paper, the power supply transient signals from sim-  

E-Print Network [OSTI]

in 8-bit Multiplier Simulation Experiments Investigating the Use of Power Supply Transient SigAbstract Transient Signal Analysis is a digital device testing method that is based on the analysis of volt- age transients at multiple test points. In this paper, the power supply transient signals from

Plusquellic, James

192

Trace Analysis and Speciation for Cr(VI) and Cr(III) via HPLC-Direct Current Plasma Emission Spectroscopy (HPLC-DCP)  

Science Journals Connector (OSTI)

......chromium content, and were then free/e-dried prior to storage and preservation. It was this freeze-dried material that...current interests in possible chromium levels to be found in seawater and/or biological samples taken from the Georges Bank area......

I.S. Krull; K.W. Panaro; L.L. Gershman

1983-10-01T23:59:59.000Z

193

Current Status  

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

Current Status Current Status > Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player July 31, 1942 The Army Corp of Engineers leases 1,025 acres of the Cook County Forest Preserve to build a research facility. November 1942 Under the direction of Enrico Fermi, a group of scientists at the University of Chicago begin building Chicago Pile-1 (CP-1). Security and secracy were essential. December 2, 1942 Enrico Fermi's team creates the world's first self-sustaining nuclear chain reaction using the CP-1 reactor under Stagg Field at the University of Chicago. CP-1 1943 The experiments under Stagg Field shut down, and the scientists move to a 19 acre section of the leased forest preserve, known as Site A. CP-1 is reconstructed and modified at Site A and renamed Chicago Pile 2 (CP-2).

194

Theoretical investigation of direct and phonon-assisted tunneling currents in InAlGaAs/InGaAs bulk and quantum-well interband tunnel junctions for multijunction solar cells  

Science Journals Connector (OSTI)

Direct and phonon-assisted tunneling currents in InAlGaAs-InGaAs bulk and double-quantum-well interband tunnel heterojunctions are simulated rigorously using the nonequilibrium Green's function formalism for coherent and dissipative quantum transport in combination with a simple two-band tight-binding model for the electronic structure. A realistic band profile and the associated built-in electrostatic field are obtained via self-consistent coupling of the transport formalism to Poisson's equation. The model reproduces experimentally observed features in the current-voltage characteristics of the devices, such as the pronounced current enhancement in the quantum-well junction as compared to the bulk junction and the structure appearing in the negative-differential resistance regime due to quantization of emitter states. Local maps of density of states and the current spectrum reveal the impact of quasibound states, electric fields, and electron-phonon scattering on the interband tunneling current. In this way, resonances appearing in the current through the double-quantum-well structure in the negative-differential resistance regime can be related to the alignment of subbands in the coupled quantum wells.

U. Aeberhard

2013-02-05T23:59:59.000Z

195

Home: Directives, Delegations, and Requirements  

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

content. | Skip to navigation content. | Skip to navigation Site Map Contact Us Current Documents Archived Documents Entire Site only in current section Advanced Search... U.S. Department of Energy Office of Management Directives, Delegations, and Requirements Sections Home Directives Current Directives Draft Directives Archives Delegations Current Delegations Current Designations Rescinded Organizations' Assignment of Responsibility Development & Review RevCom Writers' Tools DPC Corner References News and Updates Help Personal tools You are here: Office of Management » Directives, Delegations, and Requirements Info Home Directives are the Department of Energy's primary means of establishing policies, requirements, responsibilities, and procedures for Departmental elements and contractors. Directive

196

Note: Switch-Mode Hybrid Current Controllers for Quantum Cascade Lasers  

SciTech Connect (OSTI)

Chemical sensing in the mid-infrared has been revolutionized by the advent of quantum cascade lasers. Their higher current and voltage demands compared to laser diodes however, negatively impact size, weight and power footprint for fieldable systems, particularly in hot environments. This letter presents a switch-mode/linear hybrid controller design, furnishing low-noise drive current up to 2 amperes at compliance voltages up to 15 volts, with noise levels close to the Johnson noise of the internal resistors. Current modulation from near zero to 1.8 Amps is also demonstrated at frequencies up to a kilohertz.

Taubman, Matthew S.

2013-01-07T23:59:59.000Z

197

Changing Direct Current to Alternating Current by Means of Thyratrons  

Science Journals Connector (OSTI)

...Laboratory, General Electric Company. | Journal Article...LABORATORY, GENERAL ELECTRIC COMPANY Read before the...alternating for transmission of electric power has many well recognized...method of controlling an arc discharge by means of a grid...

Albert W. Hull

1936-01-01T23:59:59.000Z

198

Geothermal Energy: Current abstracts  

SciTech Connect (OSTI)

This bulletin announces the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production. (ACR)

Ringe, A.C. (ed.)

1988-02-01T23:59:59.000Z

199

Anomalous - viscosity current drive  

DOE Patents [OSTI]

An apparatus and method for maintaining a steady-state current in a toroidal magnetically confined plasma. An electric current is generated in an edge region at or near the outermost good magnetic surface of the toroidal plasma. The edge current is generated in a direction parallel to the flow of current in the main plasma and such that its current density is greater than the average density of the main plasma current. The current flow in the edge region is maintained in a direction parallel to the main current for a period of one or two of its characteristic decay times. Current from the edge region will penetrate radially into the plasma and augment the main plasma current through the mechanism of anomalous viscosity. In another aspect of the invention, current flow driven between a cathode and an anode is used to establish a start-up plasma current. The plasma-current channel is magnetically detached from the electrodes, leaving a plasma magnetically insulated from contact with any material obstructions including the cathode and anode.

Stix, Thomas H. (Princeton, NJ); Ono, Masayuki (Princeton Junction, NJ)

1988-01-01T23:59:59.000Z

200

Pacific Direct Current Intertie (PDCI) Upgrade Project  

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

Accommodate increased power transmission - The upgrade will allow even more clean power, including hydro, wind and solar, to reach markets that need it. Upgrading and...

Note: This page contains sample records for the topic "volt direct current" 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

EVSE Features Low and High Current Settings Integrated Flashlight  

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

Low and High Current Settings Integrated Flashlight Low and High Current Settings Integrated Flashlight Auto-restart EVSE Specifications Grid connection Plug and cord NEMA 5-15 Connector type J1772 Test lab certifications ETL Listed Approximate size (H x W x D inches) 16 x 9 x 4 Charge level AC Level 1 Input voltage 120 VAC Maximum input current 12 Amp Circuit breaker rating 20 Amp Test Conditions 1 Test date 9/4/2012 Nominal supply voltage (Vrms) 117.05 Supply frequency (Hz) 59.99 Initial ambient temperature (°F) 58 Test Vehicle 1,3 Make and model 2012 Chevrolet Volt Battery type Li-ion Steady state charge power (AC kW) 1.36 Maximum charge power (AC kW) 1.45 EVSE Test Results 1,2,4 EVSE consumption prior to charge (AC W) 3.6

202

Surface Wind Direction Variability  

Science Journals Connector (OSTI)

Common large shifts of wind direction in the weak-wind nocturnal boundary layer are poorly understood and are not adequately captured by numerical models and statistical parameterizations. The current study examines 15 datasets representing a ...

Larry Mahrt

2011-01-01T23:59:59.000Z

203

Departmental Directives Program  

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

To define requirements and responsibilities for implementing the Department of Energy (DOE) Directives Program in support of the Secretary's memorandum of September 10, 2007, Principles Governing Departmental Directives. See also the current list of Directives Requiring Further Documentation, as required by Appendix D of this Order. Cancels DOE P 251.1A, DOE O 251.1B, DOE M 251.1-1B.

2007-09-10T23:59:59.000Z

204

Stray current interference control for HVDC earth currents  

SciTech Connect (OSTI)

High-voltage direct current (HVDC) transmission lines exist around the world, with several in the US. When one conductor must be taken out of operation (in case of emergency), the earth may be used as an alternate conductor. The earth current may be accumulated on and discharged from underground metallic structures that cross the voltage gradient created by the current. Test results on two lines showed that stray current interference is not a major problem if mitigated properly.

Fitzgerald, J.H. III [PSG Corrosion Engineering/Corrpro Cos., Detroit, MI (United States); Kroon, D.H. [Corrpro Companies Inc., Spring, TX (United States)

1995-06-01T23:59:59.000Z

205

[News and Views  

Science Journals Connector (OSTI)

... miles of steel-core aluminium conductors used in the transmission. The distance between consecutive traction substations on the main line is twelve miles. The pressure of transmission is 95 kilovolts, ... transmission is 95 kilovolts, and this is transformed into 560 volts at the open-air substations and then converted into 1500 volts direct current by rotary machines connected in series. ...

1931-09-05T23:59:59.000Z

206

Beam current sensor  

DOE Patents [OSTI]

A current sensor for measuring the dc component of a beam of charged particles employs a superconducting pick-up loop probe, with twisted superconducting leads in combination with a Superconducting Quantum Interference Device (SQUID) detector. The pick-up probe is in the form of a single-turn loop, or a cylindrical toroid, through which the beam is directed and within which a first magnetic flux is excluded by the Meisner effect. The SQUID detector acts as a flux-to-voltage converter in providing a current to the pick-up loop so as to establish a second magnetic flux within the electrode which nulls out the first magnetic flux. A feedback voltage within the SQUID detector represents the beam current of the particles which transit the pick-up loop. Meisner effect currents prevent changes in the magnetic field within the toroidal pick-up loop and produce a current signal independent of the beam's cross-section and its position within the toroid, while the combination of superconducting elements provides current measurement sensitivities in the nano-ampere range.

Kuchnir, M.; Mills, F.E.

1984-09-28T23:59:59.000Z

207

Beam current sensor  

DOE Patents [OSTI]

A current sensor for measuring the DC component of a beam of charged particles employs a superconducting pick-up loop probe, with twisted superconducting leads in combination with a Superconducting Quantum Interference Device (SQUID) detector. The pick-up probe is in the form of a single-turn loop, or a cylindrical toroid, through which the beam is directed and within which a first magnetic flux is excluded by the Meisner effect. The SQUID detector acts as a flux-to-voltage converter in providing a current to the pick-up loop so as to establish a second magnetic flux within the electrode which nulls out the first magnetic flux. A feedback voltage within the SQUID detector represents the beam current of the particles which transit the pick-up loop. Meisner effect currents prevent changes in the magnetic field within the toroidal pick-up loop and produce a current signal independent of the beam's cross-section and its position within the toroid, while the combination of superconducting elements provides current measurement sensitivites in the nano-ampere range.

Kuchnir, Moyses (Elmhurst, IL); Mills, Frederick E. (Elburn, IL)

1987-01-01T23:59:59.000Z

208

Definition: Alternating current | Open Energy Information  

Open Energy Info (EERE)

Alternating current Alternating current Jump to: navigation, search Dictionary.png Alternating current An electric current that reverses its direction at regularly recurring intervals. In the United States, the standard is 120 reversals or 60 cycles per second. Electricity transmission networks use AC.[1][2] View on Wikipedia Wikipedia Definition In alternating current (AC, also ac), the flow of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage. AC is the form in which electric power is delivered to businesses and residences. The usual waveform of an AC power circuit is a

209

Energy Currents  

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

7 7 Energy Currents Survey Result Our thanks to all of you who responded to our reader survey. We were pleased that many of you find this a useful publication. Your opinions will help us improve it further. The CBS News' readers include a variety of professions. 17% of respondents were consultants, 15% were engineers, 11% were teachers, 11% were scientists, 10% were program managers. The remainder included contractors, designers, marketing professionals policy analysts, journalists and others. Ranked according to highest response first, the majority of readers work in education, various levels of government, utilities, non-profit organizations, and a variety of private concerns. A surprisingly large number, 52% of the respondents, are Internet users and 23% have browsed the World Wide Web. 8% have browsed the Center's Web site

210

Energy Currents  

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

1 1 Energy Currents LBL Scientist Joins Clinton Administration Art Rosenfeld Art Rosenfeld, former head of LBL's Center for Building Science, has been named a senior advisor in the U.S. Department of Energy, serving under Assistant Secretary for Energy Efficiency and Renewable Energy Christine Ervin. His appointment began July 1. In Washington, Rosenfeld will sit on President Clinton's National Science and Technology Council. He will also serve as national spokesperson for the Administration's "Cool Communities" program and will help steer through the political process a proposed new "government-sponsored enterprise"- called EFFIE MAE for Energy Efficiency Mortgage and Loan Agency-that would guarantee loans for retrofitting energy-inefficient public buildings.

211

High-efficiency solar cells fabricated from direct-current magnetron sputtered n-indium tin oxide onto p-InP grown by atmospheric pressure metalorganic vapor phase epitaxy  

SciTech Connect (OSTI)

Solar cells based on dc magnetron sputtered indium tin oxide onto epitaxially grown films of p-InP have been fabricated and analyzed. The best cells had a global efficiency of 18.4% and an air mass zero (AMO) efficiency of 16.0%. The principal fabrication variable considered was the constituency of the sputtering gas and both argon/hydrogen and argon/oxygen mixtures have been used. The former cells have the higher efficiencies, are apparently stable, and exhibit almost ideal junction characteristics. The latter cells are relatively unstable and exhibit much higher ideality factors and reverse saturation current densities. The temperature dependence of the reverse saturation current indicates totally different charge transfer mechanisms in the two cases.

Li, X.; Wanlass, M.W.; Gessert, T.A.; Emery, K.A.; Coutts, T.J.

1989-05-01T23:59:59.000Z

212

Directives Help  

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

All DOE directives are available through this site. While it may seem overwhelming, given the number of documents, we have provided a number of ways in which you may get to the information you need.

213

EV Project Chevrolet Volt Vehicle Summary Report  

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

2012 Vehicle Usage Overall fuel economy (mpg) 136 Overall electrical energy consumption (AC Whmi) 222 Number of trips 286,682 Total distance traveled (mi) 2,392,509 Avg...

214

EV Project Chevrolet Volt Vehicle Summary Report  

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

December 2011 Vehicle Usage Overall fuel economy (mpg) 131 Overall electrical energy consumption (AC Whmi) 271 Number of trips 13,819 Total distance traveled (mi) 108,115 Avg trip...

215

EV Project Chevrolet Volt Vehicle Summary Report  

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

42 Overall electrical energy consumption (AC Whmi) 231 Number of trips 676,414 Total distance traveled (mi) 5,753,009 Avg trip distance (mi) 8.3 Avg distance traveled per day...

216

EV Project Chevrolet Volt Vehicle Summary Report  

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

March 2012 Vehicle Usage Overall fuel economy (mpg) 139 Overall electrical energy consumption (AC Whmi) 293 Number of trips 76,425 Total distance traveled (mi) 609,737 Avg...

217

EV Project Chevrolet Volt Vehicle Summary Report  

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

fuel economy (mpg) 155 Overall electrical energy consumption (AC Whmi) 242 Number of trips 147,886 Total distance traveled (mi) 1,184,265 Avg trip distance (mi) 8.0 Avg distance...

218

Maintenance Sheet for 2013 Chevrolet Volt  

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

0DU103929 Date Mileage Description Cost 342013 4,876 Replaced relay assembly, engine control module, and 12V battery - under warranty NC 342013 4,876 Reflashed parking brake...

219

EV Project Chevrolet Volt Vehicle Summary Report  

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

Vehicle Summary Report Region: ALL Number of vehicles: 1766 Reporting period: January 2013 through March 2013 1 A trip is defined as all the driving done between consecutive...

220

Physics II Exam 2 -Chs. 18A,19,20 -Electric Current, Magnetic Field Feb. 23, 2009 Name Rec. Instr. Rec. Time  

E-Print Network [OSTI]

Physics II Exam 2 - Chs. 18A,19,20 - Electric Current, Magnetic Field Feb. 23, 2009 Name Rec. Instr·m/A, elementary charge e = 1.602�10-19 C, electron mass me = 9.11�10-31 kg, 1 electron-volt = 1.0 eV = 1. (aluminum resistivity is = 2.65�10-8 ·m). a) (4) What resistance should a 1.00 meter length of the wire

Wysin, Gary

Note: This page contains sample records for the topic "volt direct current" 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

Current balancing for battery strings  

DOE Patents [OSTI]

A battery plant is described which features magnetic circuit means for balancing the electrical current flow through a pluraliircuitbattery strings which are connected electrically in parallel. The magnetic circuit means is associated with the battery strings such that the conductors carrying the electrical current flow through each of the battery strings pass through the magnetic circuit means in directions which cause the electromagnetic fields of at least one predetermined pair of the conductors to oppose each other. In an alternative embodiment, a low voltage converter is associated with each of the battery strings for balancing the electrical current flow through the battery strings.

Galloway, James H. (New Baltimore, MI)

1985-01-01T23:59:59.000Z

222

Direct costing  

E-Print Network [OSTI]

oau 5e reduced. Under the same oonOitions, even ~Me on a bread scale entails not mere1y the conduct of the direct oyeraticns cf yrccessing the materials into finished products, but also the performance of auxiliary functions. these may 'ba power y... purposes have been advanced as folkway le Most of a o03RyaxO' 8 products Grc usual13r sold at prices which oovex' full product costs y plus 861ling a%el administrative expenses, plus normal profit. The inventoi~ valuate. on should be consistent...

Browning, Donald Bullock

2012-06-07T23:59:59.000Z

223

Current drivers and future directions of global livestock disease dynamics  

Science Journals Connector (OSTI)

...demand models other than...and HPAI outbreaks or threats...ability to predict changes is...Endemic disease outbreaks Greater private...and other models Livestock Revolution...2005 ) Models of foot-and-mouth...Web data predict flu . Nature...

Brian D. Perry; Delia Grace; Keith Sones

2013-01-01T23:59:59.000Z

224

Direct Biological Conversion of Electrical Current into Methane by  

E-Print Network [OSTI]

assisted method of hydrogen production (electrohydrogenesis) is that a precious metal catalyst the search for new and sustainable approaches for energy production. Two new methods of bioenergy productionfrombiomassincludeelectricityproductionusing microbial fuel cells (MFCs) and hydrogen production by electrohydrogenesis using microbial

225

http://cdp.sagepub.com/ Current Directions in Psychological  

E-Print Network [OSTI]

A Window on Reality : Perceiving Edited Moving Images Published by: http the cognitive and perceptual bases of film has been a lonely activity. Near the inception of film, some astute to understand film. Part of the reason for this lack of interest has been the presumption that the discontinuous

226

Brushless Separately Excited Direct Current Motor Electric Motors: A Survey  

E-Print Network [OSTI]

Abstract: In this paper the importance of brushless SEDC electric motors in the automotive industry continues to grow, writes Matthew Beecham. The driving force behind market growth is motorists ’ insatiable demand for safety, comfort, economy, a clean environment and overall quality of driving.

R. C. Chourasia; Dr. A. K. Bhardwaj

227

Direct-Current Resistivity Survey At Mt Princeton Hot Springs...  

Open Energy Info (EERE)

Survey Activity Date 2010 Usefulness useful DOE-funding Unknown Notes Used to map fracture and fluid flow patterns. References K. Richards, A. Revil, A. Jardani, F. Henderson,...

228

Direct-Current Resistivity Survey At Long Valley Caldera Geothermal...  

Open Energy Info (EERE)

conductive regions here may be caused by hydrothermal alteration or a fluid filled fracture system." References Daniel F. C. Pribnow, Claudia Schutze, Suzanne J. Hurter,...

229

Current hepatitis B treatment guidelines and future research directions  

Science Journals Connector (OSTI)

Hepatitis B virus (HBV) infection causes a tremendous clinical burden across the world with more than half a million people dying annually from HBV related disease. Significant advances have been made in HBV t...

Jonathan Skupsky; Ke-Qin Hu

2014-06-01T23:59:59.000Z

230

Theoretical Investigation of Bacteria Polarizability under Direct Current Electric Fields  

Science Journals Connector (OSTI)

The characteristic thickness of the electric double layer known as the Debye length is given by ?D* = ((?m*kBT*)/(2z2e2cbulk*))1/2, where kB is the Boltzmann constant, T* is the absolute temperature, cbulk* is the bulk electrolyte concentration, z is the valence of ions in a symmetric z/z electrolyte, and e is the elementary electric charge. ... The fluid experiences a resistance due to the soft layer, which can be modeled within the framework of the Debye–Bueche model. ...

Naga Neehar Dingari; Cullen R. Buie

2014-03-25T23:59:59.000Z

231

Sandia National Laboratories: temporal variation of current direction  

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

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

232

High-voltage direct current handbook: First edition  

SciTech Connect (OSTI)

HVDC systems offer opportunities for power transfer between asynchronous systems, improved performance of the ac system in which the dc link is integrated, and possibly increased power transfer across existing lines if converted to HVDC. This handbook is intended to help planners and engineers understand the intricacies of HVDC systems.

Piwko, R.J.; Leonard, D.J.; Nolan, J.J.; Thorpe, J.B. [eds.] [GE Industrial and Power Systems, Schenectady, NY (United States)

1994-12-31T23:59:59.000Z

233

Direct search for dark matter  

SciTech Connect (OSTI)

Dark matter is hypothetical matter which does not interact with electromagnetic radiation. The existence of dark matter is only inferred from gravitational effects of astrophysical observations to explain the missing mass component of the Universe. Weakly Interacting Massive Particles are currently the most popular candidate to explain the missing mass component. I review the current status of experimental searches of dark matter through direct detection using terrestrial detectors.

Yoo, Jonghee; /Fermilab

2009-12-01T23:59:59.000Z

234

(Vg = 2 volts, Fp = 3,7 volts). Dans le circuit  

E-Print Network [OSTI]

the process is incom- plete. But since it is advantageous to have thermionic convertors workingat temperatures and the latter was used simultaneously for the ionization process. In general, when the energy to be converted

Paris-Sud XI, Université de

235

Inductive current startup in large tokamaks with expanding minor radius and rf assist  

SciTech Connect (OSTI)

Auxiliary rf heating of electrons before and during the current-rise phase of a large tokamak, such as the Fusion Engineering Device (R = 4.8 m, a = 1.3 m, sigma = 1.6, B/sub T/ = 3.62 T), is examined as a means of reducing both the initiation loop voltage and resistive flux expenditure during startup. Prior to current initiation, 1 to 2 MW of electron cyclotron resonance heating power at approx. 90 GHz is used to create a small volume of high conductivity plasma (T/sub e/ approx. = 100 eV, n/sub e/ approx. = 10/sup 19/ m/sup -3/) near the upper hybrid resonance (UHR) region. This plasma conditioning permits a small radius (a/sub 0/ approx. = 0.2 to 0.4 m) current channel to be established with a relatively low initial loop voltage (less than or equal to 25 V as opposed to approx. 100 V without rf assist). During the subsequent plasma expansion and current ramp phase, a combination of rf heating (up to 5 MW) and current profile control leads to a substantial savings in volt-seconds by: (1) minimizing the resistive flux consumption; and (2) maintaining the internal flux at or near the flat profile limit.

Borowski, S.K.

1984-02-01T23:59:59.000Z

236

An Introduction to Wave-Current Interactions  

E-Print Network [OSTI]

-scale wave focusing across a storm can re-direct the wind-stress? #12;1. Adiabatic interaction StartAn Introduction to Wave-Current Interactions Jerry Smith, MPL-SIO-UCSD jasmith@ucsd.edu http just want to hold up your hand. #12;Some Questions in Wave-Current Interaction Physics 1. Adiabatic

Smith, Jerome A.

237

Current Solicitations - Hanford Site  

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

Home Prime Contracts Current Solicitations Small Business Other Sources DOE RL Contracting Officers DOE RL Contracting Officer Representatives Current Solicitations Email...

238

Current to Current Corporation | Open Energy Information  

Open Energy Info (EERE)

to Current Corporation to Current Corporation Jump to: navigation, search Name Current to Current Corporation Place Burlington, Massachusetts Zip 1803 Sector Ocean Product Developing a technology which generates power from ocean currents : Submersible Power Generators (SPG). Coordinates 44.446275°, -108.431704° 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":44.446275,"lon":-108.431704,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

239

Generation of high charge state ions in vacuum arc ion sources by a ``current jump'' method  

SciTech Connect (OSTI)

In the investigation of ion charge state distributions (CSD) in vacuum arc plasmas, good correlation between increase in arc operating voltage and mean ion charge state has been established. Therefore, to increase the mean charge state of a vacuum arc plasma, it is necessary to find ways to increase the arc operating voltage. The voltage can be increased via transients associated with the arc current by means of which a rather high operation voltage can be established across the discharge gap. Experiments were performed both in Tomsk and Berkeley with the discharge system of a vacuum arc ion source. To effect a step current rise an additional power supply was connected to the usual vacuum arc supply. This power supply made it possible to increase the vacuum arc current up to 1 kA for several {micro}s. As a rule the current jump was produced after 100--200 {micro}s into the main discharge pulse when all principal parameters of the vacuum arc were already established. To measure the CSD a time-of-flight method was used. As followed from experiments, superposition of a short, high current pulse to the vacuum arc current pulse is accompanied by a jump in arc operation voltage. Subsequently during the current step the voltage falls exponentially to one hundred volts after the completion of the current jump, and the arc voltage takes its conventional value (20--40V). Because of this increase in arc operation voltage, an enhancement of high charge station ion fractions was observed. For example, with a Ti-cathode with conventional arc parameters there is only very small value to Ti{sup 4+} ion fraction in the vacuum arc plasma. Applying strong magnetic field increases the fraction of these ions up to 20% of the total beam current. The current jump enhanced this value up to 40%.

Bugaev, A.S.; Oks, E.M.; Yushkov, G.Y.; Brown, I.G.

1999-07-01T23:59:59.000Z

240

Current Injection Spiral-Shaped Chaotic Microcavity Quantum Cascade Lasers  

Science Journals Connector (OSTI)

We report room temperature operation of current-injection quantum cascade lasers with spiral-shaped chaotic microresonators, capable of directional, single mode emission, operating...

Belkin, Mikhail A; Audet, Ross M; Fan, Jonathan A; Capasso, Federico; Narimanov, Evgenii; Bour, D; Corzine, S; Zhu, J; Höfler, G

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


241

LANSCE beam current limiter  

SciTech Connect (OSTI)

The Radiation Security System (RSS) at the Los Alamos Neutron Science Center (LANSCE) provides personnel protection from prompt radiation due to accelerated beam. Active instrumentation, such as the Beam Current Limiter, is a component of the RSS. The current limiter is designed to limit the average current in a beam line below a specific level, thus minimizing the maximum current available for a beam spill accident. The beam current limiter is a self-contained, electrically isolated toroidal beam transformer which continuously monitors beam current. It is designed as fail-safe instrumentation. The design philosophy, hardware design, operation, and limitations of the device are described.

Gallegos, F.R.

1996-06-01T23:59:59.000Z

242

CANDU safety-status and direction  

SciTech Connect (OSTI)

This paper reviews the status and direction of Canada deuterium uranium (CANDU) safety design for the current CANDU product line, with emphasis on the single-unit containment plants.

Snell, V.G.; Allen, P.J. (Atomic Energy of Canada Limited, Sheridan Park (Canada))

1993-01-01T23:59:59.000Z

243

High-Current Accelerators  

E-Print Network [OSTI]

F i g . 13 F i g . 14 A 48 ACCELERATOR F i g . 25 F i g . 16supply. Extrapolation of accelerator energy and current9 . A-48 high-current accelerator, low-velocity end. Fig.

Lawrence, Ernest O.

1955-01-01T23:59:59.000Z

244

Directional detection of dark matter streams  

Science Journals Connector (OSTI)

Directional detection of weakly interacting massive particles, in which the energies and directions of the recoiling nuclei are measured, currently presents the only prospect for probing the local velocity distribution of Galactic dark matter. We investigate the extent to which future directional detectors would be capable of probing dark matter substructure in the form of streams. We analyze the signal expected from a Sagittarius-like stream and also explore the full parameter space of stream speed, direction, dispersion and density. Using a combination of nonparametric directional statistics, a profile likelihood ratio test and Bayesian parameter inference we find that within acceptable exposure times [O(10)??kg?yr for cross sections just below the current exclusion limits] future directional detectors will be sensitive to a wide range of stream velocities and densities. We also examine and discuss the importance of the energy window of the detector.

Ciaran A.?J. O’Hare and Anne M. Green

2014-12-08T23:59:59.000Z

245

Current Testbed Research  

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

Current Testbed Research Previous Testbed Research Proposal Process Terms and Conditions Dark Fiber Testbed Performance (perfSONAR) Software & Tools Development Partnerships...

246

Current Research Portfolio  

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

Resources News & Events Expand News & Events Skip navigation links Smart Grid Demand Response Energy Efficiency Emerging Technologies Current Research Portfolio Behavior Based...

247

Ion current interface.  

E-Print Network [OSTI]

?? Abstract Abstract The reason to measure the ion current in a combustion engine is to extract combustion parameters in order to achieve closed loop… (more)

Johansson, Morgan

2005-01-01T23:59:59.000Z

248

RF current sensor  

DOE Patents [OSTI]

An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

Moore, James A. (Powell, TN); Sparks, Dennis O. (Maryville, TN)

1998-11-10T23:59:59.000Z

249

Directives Quarterly Updates  

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

Listings of new Justification Memoranda and new or revised Directives that have been posted to the DOE Directives, Delegations, and Requirements Portal. Updated quarterly.

250

Another face of DIRECT  

E-Print Network [OSTI]

authors, see for example, tree-Direct [5]. This paper ..... [4] J.M. Gablonsky, Modifications of the DIRECT Algorithm, Ph.D. Thesis, North Carolina State. University ...

chiter

2007-08-01T23:59:59.000Z

251

The Electrification of British Railways  

Science Journals Connector (OSTI)

... modern practice of using direct current at 3000 volts on the railway side of the substations. A paper by Sir Philip Dawson discussed the electrification of British railways. Sir Philip ... railways, it is estimated that the 'maximum demand' for direct current from the railway substations would be of the order of 15 million kilowatts. To get the average load ...

1932-08-27T23:59:59.000Z

252

Ultracapacitor current collector  

DOE Patents [OSTI]

An ultracapacitor having two solid, nonporous current collectors, two porous electrodes separating the collectors, a porous separator between the electrodes and an electrolyte occupying the pores in the electrodes and separator. At least one of the current collectors comprises a conductive metal substrate coated with a metal nitride, carbide or boride coating.

Jerabek, Elihu Calfin (Glenmont, NY); Mikkor, Mati (Ann Arbor, MI)

2001-10-16T23:59:59.000Z

253

Tokamak halo currents  

SciTech Connect (OSTI)

A halo current flows for part of its path through the plasma edge and for part through the chamber walls and can be as large as tenths of the plasma current. The primary interest in halo currents is the large force that they can exert on machine components. Two discordant constraints are central to the theory: (1) Halo currents must produce the magnetic field distribution required to maintain plasma force balance—a distribution that depends on the two angular coordinates of a torus. (2) Halo currents must flow along the magnetic field lines in the plasma, which implies a dependence on a linear combination of the two angular coordinates—only one angular coordinate is free. The physics basis of these two constraints is explained as is their application to the calculation of the properties of halo currents, such as their broad toroidal spectrum. Existing codes could be used to (1) provide detailed comparisons with experiments to validate that the critical elements of physics are adequately included, (2) allow more complete predictions for future machines such as ITER, and (3) design shunts and resistive elements to ensure halo currents follow paths that are the least damaging to the machine. The physics of halo currents implies that it may be possible to feedback stabilize resistive wall modes beyond the ideal-wall limit.

Boozer, Allen H. [Department of Applied Physics and Applied Mathematics Columbia University, New York, New York 10027 (United States)] [Department of Applied Physics and Applied Mathematics Columbia University, New York, New York 10027 (United States)

2013-08-15T23:59:59.000Z

254

Fuzzy Estimation of DC Motor Winding Currents Innovatia Software  

E-Print Network [OSTI]

stator windings. an attractive alternative to current estimation using In order to implement an eFuzzy Estimation of DC Motor Winding Currents Dan Simon Innovatia Software 775 Rothrock Circle °ux is rotated in the desired direction of ofuzzy ¯ltering to motor winding current estimation

Simon, Dan

255

Voltage controlled current source  

DOE Patents [OSTI]

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

Casne, Gregory M. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

256

Methods of Conditioning Direct Methanol Fuel Cells  

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

Methods of Conditioning Direct Methanol Fuel Cells Methods of Conditioning Direct Methanol Fuel Cells Methods of Conditioning Direct Methanol Fuel Cells Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. Available for thumbnail of Feynman Center (505) 665-9090 Email Methods of Conditioning Direct Methanol Fuel Cells Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. In a first method, an electrical current of polarity opposite to that used in a functioning direct methanol fuel cell is passed through the anode surface of the membrane electrode assembly. In a second method, methanol is supplied to an anode surface of the membrane electrode assembly, allowed to cross over the polymer

257

Foreign Direct Investment  

Gasoline and Diesel Fuel Update (EIA)

Investment Investment Foreign Direct Investment Foreign Direct Investment Foreign Direct Investment in U.S. Energy in U.S. Energy in U.S. Energy in U.S. Energy in 1999 in 1999 in 1999 in 1999 June 2001 ii iii Contents Foreign Affiliates' Role in U.S. Energy Industry Operations ..............................................................................1 Foreign Direct Investment: The International Transactions Accounts ..............................................................8 U.S. Companies' Direct Investment Abroad in Energy ......................................................................................14 Conclusion...............................................................................................................................................................19

258

Current Journals Athena Computers  

E-Print Network [OSTI]

Computers Reference Collection Restrooms-outside of library Scanner, Copier, Public Printer Special REFERENCE STUDY SPACE PUBLIC COMPUTERS CURRENT JOURNALS SCANNER, COPIER, PUBLIC PRINTER, ATHENA COMPUTER & Technology Stations Media Room Music Software Stations New Books and Scores Oversize Collection Public

259

Accelerated Currents in Superconductors  

Science Journals Connector (OSTI)

It is shown that the ratio of the accelerated currents of energy and matter induced in a superconductor by a long-wavelength electric field is equal to the chemical potential of the system.

Vinay Ambegaokar and Gerald Rickayzen

1966-02-04T23:59:59.000Z

260

Current Physics Information  

Science Journals Connector (OSTI)

...MARKS, R.H., MAY CONV NAT MICR AS ( 1971 ). ROBERTS, L.G., AFIPS C P 36 : 543 ( 1970 ). ZIMAN, J.M., INFORMATION, COMMUNICATION, KNOWLEDGE, NATURE 224 : 318 ( 1969 ). Current physics information. | A new concept in science...

H. William Koch

1971-11-26T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Direct/Indirect Costs  

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

This chapter provides recommended categories for direct and indirect elements developed by the Committee for Cost Methods Development (CCMD) and describes various estimating techniques for direct and indirect costs.

1997-03-28T23:59:59.000Z

262

Directives System Manual  

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

This Manual provides detailed requirements to supplement DOE O 251.1A, Directives System, dated 1-30-98.

1998-01-30T23:59:59.000Z

263

A study of the Antilles Current using moored current meter arrays  

E-Print Network [OSTI]

characteristics of the Savcnius rotor have been reported previously by Gaul (1962). The output from the current meter is a ro11 of 16 mm photographic film containing current direction and speed data, data on case inclination, and timing pulses. An example... the summer npeia ions, wind directions and speeds were typical for this subtropical latitude being gener;illy out of the east at Table 2. Mooring nositioning data. oorlpg; I I IFix No. !:Date, " Time I !I, " L'ST :I ~L*'- 0. ! I ILongitude Il...

Maloney, William Everett

2012-06-07T23:59:59.000Z

264

Fault Current Limiters  

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

Fault Fault Current Limiters Superconducting & Solid-state Power Equipment Office of Electricity Delivery and Energy Reliability www.oe.energy.gov Office of Electricity Delivery and Energy Reliability, OE-1 U.S. Department of Energy - 1000 Independence Avenue, SW - Washington, DC 20585 Plugging America Into the Future of Power What are FCLs? A fault is an unintentional short circuit, or partial short-circuit, in an electric circuit. A variety of factors such as lightning, downed power lines, or crossed power lines cause faults. During a fault, excessive current-called fault current- flows through the electrical system often resulting in a failure of one section of that system by causing a

265

Current Testbed Research  

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

Research Research R&D Overview 100G Testbed Testbed Description Testbed Results Current Testbed Research Previous Testbed Research Proposal Process Terms and Conditions Virtual Circuits (OSCARS) Performance (perfSONAR) Tools Development Green Networking Authentication & Trust Federation (ATF) Partnerships Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Current Testbed Research The following projects are currently using the ESnet Testbed. Previous testbed projects descriptions are located here. New Projects, Summer 2013 Project Name/PI End-system affinities and the performance of high-speed flows, Dipak Ghosal (UC Davis)

266

Counter Current Multiplier Mechanism  

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

Counter Current Multiplier Mechanism Counter Current Multiplier Mechanism Name: Stephen Location: N/A Country: N/A Date: N/A Question: Can you please explain to me the counter-current multiplier mechanism. I understand that cholride and sodium ions are filtered out of the ascending loop of Henle into the interstial fluid, however, I'm not sure exactly what happens from there and how this effects osmotic pressure gradients in the nephron. Any help would be greatly appriciated. Replies: This mechanism is very complex when it comes to writing a response. You have to have a strong background in osmotic pressure understanding and the anatomy of the kidney. It involves the cortex, outer and inner medula in relationship to the vasa recta, interstitial fluids at two points, the loop of Henle and the collecting duct. The size of the tubes and the position in relations to the cortex and medulla is an essential part. I can suggest some references.

267

Transformer current sensor for superconducting magnetic coils  

DOE Patents [OSTI]

A transformer current sensor having primary turns carrying a primary current for a superconducting coil and secondary turns only partially arranged within the primary turns. The secondary turns include an active winding disposed within the primary turns and a dummy winding which is not disposed in the primary turns and so does not experience a magnetic field due to a flow of current in the primary turns. The active and dummy windings are wound in opposite directions or connected in series-bucking relationship, and are exposed to the same ambient magnetic field. Voltages which might otherwise develop in the active and dummy windings due to ambient magnetic fields thus cancel out. The resultant voltage is purely indicative of the rate of change of current flowing in the primary turns.

Shen, Stewart S. (Oak Ridge, TN); Wilson, C. Thomas (Norris, TN)

1988-01-01T23:59:59.000Z

268

Hydrogen Delivery- Current Technology  

Broader source: Energy.gov [DOE]

Hydrogen is transported from the point of production to the point of use via pipeline, over the road in cryogenic liquid trucks or gaseous tube trailers, or by rail or barge. Read on to learn more about current hydrogen delivery and storage technologies.

269

Current address: Samuel Johnson  

E-Print Network [OSTI]

CV: E-mail : Homepage: Current address: Samuel Johnson samuel.johnson@imperial.ac.uk www. #12;Submitted work 1. The meaning of niche: Cause or consequence of food-web structure?, S. Johnson, V learning, S. Johnson, J. Marro, and J.J. Torres, PLoS ONE 8(1): e50276 (2013) 3. Enhancing neural network

Johnson, Samuel

270

Clean Cities: Current Financial Opportunities  

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

Financial Opportunities Financial Opportunities Printable Version Share this resource Send a link to Clean Cities: Current Financial Opportunities to someone by E-mail Share Clean Cities: Current Financial Opportunities on Facebook Tweet about Clean Cities: Current Financial Opportunities on Twitter Bookmark Clean Cities: Current Financial Opportunities on Google Bookmark Clean Cities: Current Financial Opportunities on Delicious Rank Clean Cities: Current Financial Opportunities on Digg Find More places to share Clean Cities: Current Financial Opportunities on AddThis.com... Current Opportunities Related Opportunities Funded Projects Current Financial Opportunities Current transportation-related financial opportunities, including Clean Cities funding opportunity announcements (FOAs) issued by the U.S.

271

FCT Hydrogen Production: Current Technology  

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

Current Technology to Current Technology to someone by E-mail Share FCT Hydrogen Production: Current Technology on Facebook Tweet about FCT Hydrogen Production: Current Technology on Twitter Bookmark FCT Hydrogen Production: Current Technology on Google Bookmark FCT Hydrogen Production: Current Technology on Delicious Rank FCT Hydrogen Production: Current Technology on Digg Find More places to share FCT Hydrogen Production: Current Technology on AddThis.com... Home Basics Current Technology Thermal Processes Electrolytic Processes Photolytic Processes R&D Activities Quick Links Hydrogen Delivery Hydrogen Storage Fuel Cells Technology Validation Manufacturing Codes & Standards Education Systems Analysis Contacts Current Technology The development of clean, sustainable, and cost-competitive hydrogen

272

Current Status of Concentrator Photovoltaic (CPV) Technology  

SciTech Connect (OSTI)

This report describes the current status of the market and technology for concentrator photovoltaic (CPV) cells and modules. Significant progress in CPV has been achieved, including record efficiencies for modules (36.7%) and cells (46%), as well as growth of large field installations in recent years. CPV technology may also have the potential to be cost-competitive on a levelized cost of energy (LCOE) basis in regions of high direct normal irradiance (DNI). The study includes an overview of all installations larger than 1 MW, information on companies currently active in the CPV field, efficiency data, and estimates of the LCOE in different scenarios.

Philipps, S. P.; Bett, A. W.; Horowitz, K.; Kurtz, S.

2015-01-01T23:59:59.000Z

273

Joule heating generated by spin current through Josephson junctions  

SciTech Connect (OSTI)

We theoretically study the spin-polarized current flowing through a Josephson junction (JJ) in a spin injection device. When the spin-polarized current is injected from a ferromagnet in a superconductor (SC), the charge current is carried by the superconducting condensate (Cooper pairs), while the spin-up and spin-down currents flow in equal magnitude but in the opposite direction in a SC, because of no quasiparticle charge current in the SC. This indicates that not only the Josephson current but also the spin current flow across JJ at zero bias voltage, thereby generating Joule heating by the spin current. The result provides a new method for detecting the spin current by measuring Joule heating at JJ. {copyright} 2001 American Institute of Physics.

Takahashi, S.; Yamashita, T.; Koyama, T.; Maekawa, S.; Imamura, H.

2001-06-01T23:59:59.000Z

274

CMVRTC: Current Research  

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

Current reseach projects Current reseach projects Wireless Roadside Inspection Field Operational Test (WRI-FOT) Brake Defect Causation and Abatement Study Infrared-Based Screening System Overweight Vehicle Defect Study WRI-fot WRI-FOT roadmap In Fall of 2012, FMCSA kicked offed the WRI-FOT Program to validate technologies and methodologies that can improve safety through inspections using wireless technologies that convey real-time identification of commercial motor vehicles (CMV), drivers, and carriers, as well as information about the status of the vehicles and their drivers. It is believed that these inspections will (1) increase CMV safety, (2) increase inspection efficiency, (3) improve inspection effectiveness by reducing the probability of drivers bypassing CMV inspection stations and

275

Directives System Manual  

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

This Manual provides detailed requirements to supplement DOE O 251.1, which establishes requirements for the development, coordination, and sunset review of DOE directives.

1995-10-16T23:59:59.000Z

276

Departmental Directives Program  

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

To establish directives as the primary means to set, communicate, and institutionalize policies, requirements, responsibilities, and procedures for Departmental elements and contractors.

2014-10-16T23:59:59.000Z

277

Electric Equipment of the Dolomites Railway  

Science Journals Connector (OSTI)

... current at 2700 volts is adopted. This is done by the use of only one substation situated near Cortina, a little more than half-way from the power terminus. The ... the power terminus. The conversion of the alternating to direct current is done at the substation by means of two mercury arc rectifiers each of 11,000 kilowatts capacity at 3000 ...

1932-01-02T23:59:59.000Z

278

Quantum pumping of valley current in strain engineered graphene  

SciTech Connect (OSTI)

We studied the generation of valley dependent current by adiabatic quantum pumping in monolayer graphene in the presence of electric potential barriers, ferromagnetic field and strain. The pumped currents in the two valleys have same magnitudes and opposite directions; thus, a pure valley current is generated. The oscillation of the pumped pure valley current is determined by the Fabry-Perot resonances formed in the structure. In our calculation, the pumped pure valley current can be as high as 50?nA, which is measurable using present technologies. The proposed device is useful for the development of graphene valleytronic devices.

Wang, Jing [Department of Physics, University of Science and Technology of China, Hefei (China) [Department of Physics, University of Science and Technology of China, Hefei (China); Department of Physics and Materials Science and Centre for Functional Photonics, City University of Hong Kong, Hong Kong and City University of Hong Kong Shenzhen Research Institute, Shenzhen (China); Chan, K. S., E-mail: apkschan@cityu.edu.hk, E-mail: zjlin@ustc.edu.cn [Department of Physics and Materials Science and Centre for Functional Photonics, City University of Hong Kong, Hong Kong and City University of Hong Kong Shenzhen Research Institute, Shenzhen (China); Lin, Zijing, E-mail: apkschan@cityu.edu.hk, E-mail: zjlin@ustc.edu.cn [Department of Physics, University of Science and Technology of China, Hefei (China)] [Department of Physics, University of Science and Technology of China, Hefei (China)

2014-01-06T23:59:59.000Z

279

Ripping Graphene: Preferred Directions  

Science Journals Connector (OSTI)

Ripping Graphene: Preferred Directions ... Here we present experimental and theoretical studies on cracks or tears in suspended monolayer graphene membranes. ... Edges from mechanically induced ripping exhibit straight lines and are predominantly aligned in the armchair or zigzag directions of the graphene lattice. ...

Kwanpyo Kim; Vasilii I. Artyukhov; William Regan; Yuanyue Liu; M. F. Crommie; Boris I. Yakobson; A. Zettl

2011-12-12T23:59:59.000Z

280

Departmental Directives System  

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

The order establishes the directives system to be used for publishing permanent and temporary directives issued by DOE Headquarters and addressed to Headquarters and/or field elements. Chg 1 dated 3-14-85. Cancels DOE 1321.1A.

1983-04-07T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Currents, Berkeley Lab's Biweekly Newspaper  

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

Currents Index A-Z Index Search Phone Book Comments Ernest Orlando Lawrence Berkeley National Laboratory Search Currents Back Issues (1994 to present) Search Lab science articles...

282

Current HMS Observations - Hanford Site  

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

Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met Data Met and Climate Data Summary Products Contacts Hours Current NWS...

283

direct_deposit_111609  

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

PROTECT YOUR BANKING INFORMATION: PROTECT YOUR BANKING INFORMATION: DO NOT complete this form until you are ready to submit it to the Payroll Department. DIRECT DEPOSIT REQUEST Directions: 1. Provide required information neatly, legibly; 2. If Checking Account Direct Deposit, include a voided check. a. DO NOT submit a deposit slip! 3. If Savings Account Direct Deposit, include a copy of savings card. 4. Sign this form; 5. Inter-office mail it to Craft Payroll at "P238." DIRECT DEPOSITION AUTHORIZATION I hereby authorize Los Alamos National Laboratory, hereinafter called The Laboratory, to initiate credit entries and, if necessary, debit entries and adjustments for any credit entries in error to my account listed on this form. If deposit is for:

284

Directions and Maps  

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

Directions & Maps Directions & Maps Plan Your Visit Visit About the Museum Museum Hours Directions & Maps When to Visit Arrange for a Visit Around Los Alamos Contact Us invisible utility element Directions and Maps Aerial View of Los Alamos Aerial approach to the Los Alamos airport Where we're located Los Alamos (elevation 7,355 feet) is perched high atop the Pajarito Plateau in the Jemez Mountains, 35 miles northwest of Santa Fe. The Bradbury Science Museum is located in downtown Los Alamos at the corner of Central Avenue and 15th Street. If you're driving here and using GPS navigation, our address is 1350 Central Avenue, Los Alamos, NM 87544. How to get here From Albuquerque take I-25 north to Santa Fe (take NM 599 for most direct route), then US 84/285 north to Pojoaque. At Pojoaque take the NM 502 exit

285

Sandia National Laboratories: HelioVolt Modules Installed at...  

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

and Exhibition (EU PVSC) EC Top Publications Reference Model 5 (RM5): Oscillating Surge Wave Energy Converter Experimental Wave Tank Test for Reference Model 3 Floating- Point...

286

2013 Chevrolet Volt - VIN 3929 - Advanced Vehicle Testing - Beginning...  

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

Voltage 3 : 3.00 V Thermal Management: Active - Liquid cooled BATTERY LABORATORY TEST RESULTS SUMMARY Vehicle Mileage and Testing Date Vehicle Odometer: 4,007 mi Date of...

287

2013 Chevrolte Volt - VIN 3929 - Advanced Vehicle Testing - Baseline...  

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

Sheets (MSDS) for all unique hazardous materials the vehicle is equipped with, including Energy Storage System (ESS) batteries or capacitors, and auxiliary batteries. (3)...

288

2011 Chevrolte Volt - VIN 0815 - Advanced Vehicle Testing - Baseline...  

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

Sheets (MSDS) for all unique hazardous materials the vehicle is equipped with, including Energy Storage System (ESS) batteries or capacitors, and auxiliary batteries. (3)...

289

Chevrolet Volt for a Smart Planet Video Transcript  

E-Print Network [OSTI]

Gassenfeit, GM: A smarter automotive industry is one that can foresee the future and then bring it to market pla

290

Some operating features of a 100,000-volt transmission  

E-Print Network [OSTI]

of the thesis - - - - - - Page 2. (2) Introductory description of line - - - Page 5* A* Stations in operation, B. Plan and profile of route, C. Mechanical construction. D. Mechanical weakness of line - - - Paige 10. a^ Excessive lengths of spans. b... Superstructure Denver Substation - 7 Profile of the Transmission Line 8a Plan of the Transmission Line - - - - - 8b Transmission Line at Hell Gate - - - - - 11 Sleet on the Argentine Crest Tower 13 Tower Crushed by Snow Slide - - - - - 13 Curve of Sparking...

Jones, Raymond

1914-03-17T23:59:59.000Z

291

Chapter 2 - The History of Measuring Ocean Currents  

Science Journals Connector (OSTI)

Abstract This chapter begins with a brief mention of the contributions made by the ancient mariners in the “discovery” of oceanic currents. Subsequent efforts made by several investigators in this direction, toward development of various devices for measurements of oceanic currents, are then addressed. These include technologies for measurement of surface currents, subsurface and abyssal currents, seafloor boundary layer currents, and vertical profiling of horizontal currents. Surface current measurement technologies include the application of drifting surface bodies; imaging of surface water motion trajectories and patterns with the support of aerial photography, radiometry, and active microwave radar systems; and vector mapping based on current-driven sea-surface wave transport. This is followed by discussion of technologies developed for subsurface and abyssal current measurements. These include spatially integrated measurements based on earth’s magnetism and oceanic sound speed, Lagrangian measurements based on motion of drifting subsurface floats, and Eulerian measurements with the support of a multitude of devices such as suspended drag, propeller revolution registration by mechanical counters, unidirectional impeller current meters, Savonius rotor current meters, ultrasonic acoustic methods, thermal sensors for measurements of turbulent motions, laser Doppler sensors, and acoustic Doppler current meters. This chapter further addresses an important topic of seafloor boundary layer current measurements using mechanical devices and nonmechanical devices such as BASS and MAVS. The chapter concludes with a discussion of technologies developed for vertical profiling of horizontal currents.

Antony Joseph

2014-01-01T23:59:59.000Z

292

Predictions of fast wave heating, current drive, and current drive antenna arrays for advanced tokamaks  

SciTech Connect (OSTI)

The objective of the advanced tokamak program is to optimize plasma performance leading to a compact tokamak reactor through active, steady state control of the current profile using non-inductive current drive and profile control. To achieve these objectives requires compatibility and flexibility in the use of available heating and current drive systems--ion cyclotron radio frequency (ICRF), neutral beams, and lower hybrid. For any advanced tokamak, the following are important challenges to effective use of fast waves in various roles of direct electron heating, minority ion heating, and current drive: (1) to employ the heating and current drive systems to give self-consistent pressure and current profiles leading to the desired advanced tokamak operating modes; (2) to minimize absorption of the fast waves by parasitic resonances, which limit current drive; (3) to optimize and control the spectrum of fast waves launched by the antenna array for the required mix of simultaneous heating and current drive. The authors have addressed these issues using theoretical and computational tools developed at a number of institutions by benchmarking the computations against available experimental data and applying them to the specific case of TPX.

Batchelor, D.B.; Baity, F.W.; Carter, M.D. [and others

1994-12-31T23:59:59.000Z

293

Argonne Transportation Current News  

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

Current News November 21, 2013 -- Pixelligent Technologies Working with Argonne to Develop Nanoadditives under DOE SBIR Grant November 4, 2013 -- New GREET Model Released October 25, 2013 -- Argonne Creates IdleBox Toolkit for DOE's Clean Cities Initiative to Help Reduce Vehicle Idling September 23, 2013 -- New VISION Model Released for Estimating Potential Energy Use, Oil Use and Carbon Emission Impacts September 17, 2013 -- Water Assessment for Transportation Energy Resources (WATER) Tool Released September 9, 2013 -- Dileep Singh to Receive Prestigious Lee Hsun Award July 17, 2013 -- Summer 2013 TransForum now available July 10, 2013 -- Argonne Wins Four R&D 100 Awards March 23, 2013 -- White House Women's Leadership Summit on Climate and Energy recognizes Argonne scientists

294

Current Concepts: Flavivirus Encephalitis  

Science Journals Connector (OSTI)

..., which has caused encephalitis outbreaks in Brazil, and Murray Valley encephalitis virus in Australia, New Guinea, and New Zealand. Kunjin virus, which also circulates in Australia, recently has been reclassified as a subtype of West Nile virus. In terms of numbers, the most important member of the... West Nile virus is one member of the genus flavivirus, which includes mosquito-borne viruses that cause similar disease patterns in much of the world. The other members of this serogroup include the St. Louis encephalitis virus, the Murray Valley virus, and the Japanese encephalitis virus (which causes thousands of deaths each year in Asia). This review summarizes what is currently known about flavivirus encephalitis, with emphasis on the pathogenesis of West Nile virus infections.

Solomon T.

2004-07-22T23:59:59.000Z

295

Plasma-Current Multipole Experiments  

Science Journals Connector (OSTI)

The magnetohydrodynamic equilibrium and stability of the plasma-current multipole configuration have been demonstrated experimentally.

T. Ohkawa and H. G. Voorhies

1969-06-16T23:59:59.000Z

296

Pumping single-file colloids: Absence of current reversal  

E-Print Network [OSTI]

We consider the single-file motion of colloidal particles interacting via short-ranged repulsion and placed in a traveling wave potential, that varies periodically in time and space. Under suitable driving conditions, a directed time-averaged flow of colloids is generated. We obtain analytic results for the model using a perturbative approach to solve the Fokker-Planck equations. The predictions show good agreement with numerical simulations. We find peaks in the time-averaged directed current as a function of driving frequency, wavelength and particle density and discuss possible experimental realizations. Surprisingly, unlike a closely related exclusion dynamics on a lattice, the directed current in the present model does not show current reversal with density. A linear response formula relating current response to equilibrium correlations is also proposed.

Debasish Chaudhuri; Archishman Raju; Abhishek Dhar

2014-09-24T23:59:59.000Z

297

FCT Hydrogen Delivery: Current Technology  

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

Current Technology to someone Current Technology to someone by E-mail Share FCT Hydrogen Delivery: Current Technology on Facebook Tweet about FCT Hydrogen Delivery: Current Technology on Twitter Bookmark FCT Hydrogen Delivery: Current Technology on Google Bookmark FCT Hydrogen Delivery: Current Technology on Delicious Rank FCT Hydrogen Delivery: Current Technology on Digg Find More places to share FCT Hydrogen Delivery: Current Technology on AddThis.com... Home Basics Current Technology R&D Activities Quick Links Hydrogen Production Hydrogen Storage Fuel Cells Technology Validation Manufacturing Codes & Standards Education Systems Analysis Contacts Current Technology Today, hydrogen is transported from the point of production to the point of use via pipeline, over the road in cryogenic liquid trucks or gaseous tube

298

FCT Hydrogen Storage: Current Technology  

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

Current Technology to someone Current Technology to someone by E-mail Share FCT Hydrogen Storage: Current Technology on Facebook Tweet about FCT Hydrogen Storage: Current Technology on Twitter Bookmark FCT Hydrogen Storage: Current Technology on Google Bookmark FCT Hydrogen Storage: Current Technology on Delicious Rank FCT Hydrogen Storage: Current Technology on Digg Find More places to share FCT Hydrogen Storage: Current Technology on AddThis.com... Home Basics Current Technology Gaseous and Liquid Hydrogen Storage Materials-Based Hydrogen Storage Hydrogen Storage Challenges Status of Hydrogen Storage Technologies DOE R&D Activities Quick Links Hydrogen Production Hydrogen Delivery Fuel Cells Technology Validation Manufacturing Codes & Standards Education Systems Analysis Contacts Current Technology

299

Direct Discharge Permit (Vermont)  

Broader source: Energy.gov [DOE]

A direct discharge permit is required if a project involves the discharge of pollutants to state waters. For generation purposes, this involves the withdrawal of surface water for cooling purposes...

300

Directed transport in equilibrium  

E-Print Network [OSTI]

We investigate how a microscopic system, which can move only in one direction, comes to equilibrium with a heat-bath. To understand this problem, we investigate a symmetry broken dimer constrained to move in a particular direction when in contact with a uniform heat-bath at a constant temperature. The dimer is not driven by any external force. The system gains kinetic energy from the heat-bath and that the system can only use in directed transport. At the hard core collision limit between the particles of the dimer, we show by exact analytic calculations and complementary numerical results that the dimer undergoes steady directed transport by attaining a stationary distribution for a relevant degree of freedom. Our observation, being perfectly consistent with the {\\it second law of thermodynamics}, leads to a generalization of the existing {\\it Brownian ratchet} paradigm and points out some important limitations of {\\it Fokker-Planck} dynamics.

Bhattacharyay, A

2010-01-01T23:59:59.000Z

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


301

Art Directable Tornadoes  

E-Print Network [OSTI]

......................................................................... 25 2. Directional Force ........................................................... 26 3. Vortex Force .................................................................. 26 4. Lattice... ................................................................... 7 7 Tornado in its rope stage before disappearing ........................................... 9 8 Fire vortex and Waterspout ........................................................................ 10 9 Landspout and Gustnado...

Dwivedi, Ravindra

2011-08-08T23:59:59.000Z

302

Refrigerant directly cooled capacitors  

DOE Patents [OSTI]

The invention is a direct contact refrigerant cooling system using a refrigerant floating loop having a refrigerant and refrigeration devices. The cooling system has at least one hermetic container disposed in the refrigerant floating loop. The hermetic container has at least one electronic component selected from the group consisting of capacitors, power electronic switches and gating signal module. The refrigerant is in direct contact with the electronic component.

Hsu, John S. (Oak Ridge, TN); Seiber, Larry E. (Oak Ridge, TN); Marlino, Laura D. (Oak Ridge, TN); Ayers, Curtis W. (Kingston, TN)

2007-09-11T23:59:59.000Z

303

New Directions in Direct Dark Matter Searches  

E-Print Network [OSTI]

I present the status of direct dark matter detection with specific attention to the experimental results and their phenomenological interpretation in terms of dark matter interactions. In particular I review a new and more general approach to study signals in this field based on non-relativistic operators which parametrize more efficiently the dark matter-nucleus interactions in terms of a very limited number of relevant degrees of freedom. Then I list the major experimental results, pointing out the main uncertainties that affect the theoretical interpretation of the data. Finally, since the underlying theory that describes both the dark matter and the standard model fields is unknown, I address the uncertainties coming from the nature of the interaction. In particular, the phenomenology of a class of models in which the interaction between dark matter particles and target nuclei is of a long-range type is discussed.

Paolo Panci

2014-02-06T23:59:59.000Z

304

Advances and new directions in direct liquefaction  

SciTech Connect (OSTI)

With advance in single stage processes such as H-Coal, EDS and SRC, and refining and upgrading of coal liquids by Chevron and UOP, the direct liquefaction process has continuously evolved to the present two-stage catalytic configuration, which produces the highest liquid yield and product quality of any process worldwide. The Two Stage Liquefaction (TSL) process has been successfully applied to bituminous and subbituminous coals, overcoming problems associated with earlier processes. But, potential for additional improvement is recognized in several areas: cleaning coal prior to liquefaction; low temperature and pressure preconditioning of feed coal; novel catalysts development to arrest regressive reactions and improve hydrotreatment and cracking reactions; improvement in hydrocarbon value recovery and reduced energy rejection by alternate bottoms processing techniques. In this paper, after discussing briefly the history of liquefaction and development of the TSL process, present potential areas for research and development are presented.

Rao, S.N.; Schindler, H.D.; McGurl, G.V.

1988-01-01T23:59:59.000Z

305

Oscillatory nonohomic current drive for maintaining a plasma current  

DOE Patents [OSTI]

Apparatus and methods are described for maintaining a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

Fisch, N.J.

1984-01-01T23:59:59.000Z

306

Oscillatory nonhmic current drive for maintaining a plasma current  

DOE Patents [OSTI]

Apparatus and method of the invention maintain a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

Fisch, Nathaniel J. (Princeton, NJ)

1986-01-01T23:59:59.000Z

307

Geothermal direct use engineering and design guidebook  

SciTech Connect (OSTI)

The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating and cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of the resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental consideration. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very large potential in the United States.

Lienau, P.J.; Lunis, B.C. (eds.)

1991-01-01T23:59:59.000Z

308

Geothermal direct use engineering and design guidebook  

SciTech Connect (OSTI)

The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of these resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse, aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental considerations. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very potential in the United States.

Bloomquist, R.G.; Culver, G.; Ellis, P.F.; Higbee, C.; Kindle, C.; Lienau, P.J.; Lunis, B.C.; Rafferty, K.; Stiger, S.; Wright, P.M.

1989-03-01T23:59:59.000Z

309

Direct memory access transfer completion notification  

DOE Patents [OSTI]

Methods, compute nodes, and computer program products are provided for direct memory access (`DMA`) transfer completion notification. Embodiments include determining, by an origin DMA engine on an origin compute node, whether a data descriptor for an application message to be sent to a target compute node is currently in an injection first-in-first-out (`FIFO`) buffer in dependence upon a sequence number previously associated with the data descriptor, the total number of descriptors currently in the injection FIFO buffer, and the current sequence number for the newest data descriptor stored in the injection FIFO buffer; and notifying a processor core on the origin DMA engine that the message has been sent if the data descriptor for the message is not currently in the injection FIFO buffer.

Chen, Dong (Croton on Hudson, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Kumar, Sameer (White Plains, NY); Parker, Jeffrey J. (Rochester, MN); Steinmacher-Burow, Burkhard D. (Esslingen, DE); Vranas, Pavlos (Danville, CA)

2010-07-27T23:59:59.000Z

310

Current Annualized Request  

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

Organization Organization FY 2012 FY 2013 FY 2014 Current Annualized Request CR $ % National Security Weapons Activities* 7,214,834 7,557,342 7,868,409 +311,067 +4.1% Defense Nuclear Nonproliferation 2,300,950 2,409,930 2,140,142 -160,808 -7.0% Naval Reactors 1,080,000 1,086,610 1,246,134 +166,134 +15.4% Office of the Administrator 410,000 412,509 397,784 -12,216 -3.0% Total, National Nuclear Security Administration 11,005,784 11,466,391 11,652,469 +304,177 +2.8% Energy and Environment Energy Efficiency and Renewable Energy 1,780,548 1,820,713 2,775,700 +995,152 +55.9% Electricity Delivery and Energy Reliability 136,178 139,954 169,015 +32,837 +24.1% Fossil Energy 554,806 714,033 637,975 +83,169 +15.0% Nuclear Energy 853,816 863,996 735,460 -118,356 -13.9% Race to the Top for Energy Efficiency and Grid Modernization

311

MHK Technologies/Current Catcher | Open Energy Information  

Open Energy Info (EERE)

Catcher Catcher < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Current Catcher.png Technology Profile Primary Organization Offshore Islands Ltd Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Description The Current Catcher harnesses the power and fluctuations of the ocean s currents to generate energy It uses cones to increase the velocity of the ocean current and to direct it to the turbine blades to maximize the production of energy which in turn is transferred through electrical swivels The Current Catcher uses conventional low cost steel tubular frames These frames can support both ocean and tidal current power generators rigidly fixed to the seabed or moored to the seabed

312

Computing plasma focus pinch current from total current measurement  

Science Journals Connector (OSTI)

The total current I total waveform in a plasma focus discharge is the most commonly measured quantity contrasting with the difficult measurement of I pinch . However yield laws should be scaled to focus pinch current I pinch rather than the peak I total . This paper describes how I pinch may be computed from the I total trace by fitting a computed current trace to the measured current trace using the Lee model. The method is applied to an experiment in which both the I total trace and the plasma sheath current trace were measured. The result shows good agreement between the values of computed and measured I pinch .

S. Lee; S. H. Saw; P. C. K. Lee; R. S. Rawat; H. Schmidt

2008-01-01T23:59:59.000Z

313

Heat Transfer and Convection Currents  

Science Journals Connector (OSTI)

...October 1965 research-article Heat Transfer and Convection Currents D. C...convection in a medium with internal heat generation is discussed semi-quantitatively...States English United Kingdom 1966 Heat transfer and convection currents Tozer D...

1965-01-01T23:59:59.000Z

314

Directional gamma detector  

DOE Patents [OSTI]

An improved directional gamma radiation detector has a collector sandwiched etween two layers of insulation of varying thicknesses. The collector and insulation layers are contained within an evacuated casing, or emitter, which releases electrons upon exposure to gamma radiation. Delayed electrons and electrons entering the collector at oblique angles are attenuated as they pass through the insulation layers on route to the collector.

LeVert, Francis E. (Downers Grove, Knoxville, TN); Cox, Samson A. (Downers Grove, IL)

1981-01-01T23:59:59.000Z

315

Extension of DOE Directives  

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

This Notice extends the following directives until 2/16/04: DOE N 205.2, Foreign National Access to DOE Cyber Systems, and DOE N 205.3, Password Generation, Protection, and Use, dated 11/23/99-7/1/00.

2003-02-24T23:59:59.000Z

316

Current Experiments in Particle Physics (September 1996)  

SciTech Connect (OSTI)

This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries. This report contains full summaries of 180 approved current and recent experiments in elementary particle physics. The focus of the report is on selected experiments which directly contribute to our better understanding of elementary particles and their properties such as masses, widths or lifetimes, and branching fractions.

Galic, H.; Lehar, F.; Klyukhin, V.I.; Ryabov, Yu.G.; Bilak, S.V.; Illarionova, N.S.; Khachaturov, B.A.; Strokovsky, E.A.; Hoffman, C.M.; Kettle, P.-R.; Olin, A.; Armstrong, F.E.

1996-09-01T23:59:59.000Z

317

Current Awards | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

National Laser User Facilities Program Current Awards Current Awards National Laser Users' Facility Grant Program Current Awards Under Construction...

318

Current Awards | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Stewardship Science Academic Alliances Program Current Awards Current Awards Stewardship Science Academic Alliances (SSAA) Program Current Awards Under Construction...

319

Letter: Direction and Guidance for Implementing Direct DOE Relationship &  

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

Letter: Direction and Guidance for Implementing Direct DOE Letter: Direction and Guidance for Implementing Direct DOE Relationship & Funding for EMSSABs Letter: Direction and Guidance for Implementing Direct DOE Relationship & Funding for EMSSABs From: Assistant Secretary, Jessie Hill Roberson (EM-11) To: Mr. Monte Wilson, Chair, INEEL Citizens Advisory Board This letter is in response to a November 21, 2003 letter regarding direction and guidance for implementing direct DOE relationship and funding for Environmental Management Site Specific Advisory Boards. Roberson Letter - December 12, 2003 More Documents & Publications Letter: Progress in Implementing a Direct DOE Relationship & Funding for the EMSSABs Letter: Mission, Objectives & Scope of the Site Specific Advisory Board Memorandum: Direction and Guidance for Implementing Direct DOE Relationship

320

Letter: Direction and Guidance for Implementing Direct DOE Relationship &  

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

Letter: Direction and Guidance for Implementing Direct DOE Letter: Direction and Guidance for Implementing Direct DOE Relationship & Funding for EMSSABs Letter: Direction and Guidance for Implementing Direct DOE Relationship & Funding for EMSSABs From: Assistant Secretary, Jessie Hill Roberson (EM-11) To: Mr. Monte Wilson, Chair, INEEL Citizens Advisory Board This letter is in response to a November 21, 2003 letter regarding direction and guidance for implementing direct DOE relationship and funding for Environmental Management Site Specific Advisory Boards. Roberson Letter - December 12, 2003 More Documents & Publications Letter: Progress in Implementing a Direct DOE Relationship & Funding for the EMSSABs Letter: Mission, Objectives & Scope of the Site Specific Advisory Board Memorandum: Direction and Guidance for Implementing Direct DOE Relationship

Note: This page contains sample records for the topic "volt direct current" 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

Fault current limiter and alternating current circuit breaker  

DOE Patents [OSTI]

A solid-state circuit breaker and current limiter are disclosed for a load served by an alternating current source having a source impedance, the solid-state circuit breaker and current limiter comprising a thyristor bridge interposed between the alternating current source and the load, the thyristor bridge having four thyristor legs and four nodes, with a first node connected to the alternating current source, and a second node connected to the load. A coil is connected from a third node to a fourth node, the coil having an impedance of a value calculated to limit the current flowing therethrough to a predetermined value. Control means are connected to the thyristor legs for limiting the alternating current flow to the load under fault conditions to a predetermined level, and for gating the thyristor bridge under fault conditions to quickly reduce alternating current flowing therethrough to zero and thereafter to maintain the thyristor bridge in an electrically open condition preventing the alternating current from flowing therethrough for a predetermined period of time. 9 figs.

Boenig, H.J.

1998-03-10T23:59:59.000Z

322

Fault current limiter and alternating current circuit breaker  

SciTech Connect (OSTI)

A solid-state circuit breaker and current limiter for a load served by an alternating current source having a source impedance, the solid-state circuit breaker and current limiter comprising a thyristor bridge interposed between the alternating current source and the load, the thyristor bridge having four thyristor legs and four nodes, with a first node connected to the alternating current source, and a second node connected to the load. A coil is connected from a third node to a fourth node, the coil having an impedance of a value calculated to limit the current flowing therethrough to a predetermined value. Control means are connected to the thyristor legs for limiting the alternating current flow to the load under fault conditions to a predetermined level, and for gating the thyristor bridge under fault conditions to quickly reduce alternating current flowing therethrough to zero and thereafter to maintain the thyristor bridge in an electrically open condition preventing the alternating current from flowing therethrough for a predetermined period of time.

Boenig, Heinrich J. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

323

A Treatise on Electricity and Magnetism An Elementary Treatise on Electricity  

Science Journals Connector (OSTI)

... unbusinesslike statements of quantity and intensity, we have the precise ideas of electromotive force, resistance, current, and so on, measured in their respective units, the volt, the ... into the terminology of the subject. He is aware that at every point of the electric field there is conceived a directed quantity, which in the former edition of this ...

G. CHRYSTAL

1882-01-12T23:59:59.000Z

324

Definition: Direct normal irradiance | Open Energy Information  

Open Energy Info (EERE)

normal irradiance normal irradiance (Redirected from Definition:DNI) Jump to: navigation, search Dictionary.png Direct normal irradiance the amount of solar radiation received per unit area by a surface perpendicular (normal) to the rays that come in a straight line from the direction of the sun at its current position in the sky.[1] Also Known As DNI Related Terms Solar radiation, Irradiance, Concentrating solar power, Global horizontal irradiance References ↑ http://www.3tier.com/en/support/glossary/#dni Retrie LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ved from "http://en.openei.org/w/index.php?title=Definition:Direct_normal_irradiance&oldid=423379" Category: Definitions What links here Related changes Special pages Printable version Permanent link

325

MHK Technologies/Current Power | Open Energy Information  

Open Energy Info (EERE)

Power Power < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Current Power.jpg Technology Profile Primary Organization Current Power AB Project(s) where this technology is utilized *MHK Projects/Norde lv Technology Resource Click here Current/Tidal Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The Current Power device is a slow speed vertical axis turbine that utilizes a direct drive permanent magnet rotating generator The concept is based on a vertical axle turbine directly coupled to a permanent magnet synchronous generator The system is intended to be placed on the bottom of the ocean or a river where it would be protected from storm surges and strong waves The output from the generator has to be rectified and inverted before connection to the grid Robustness is achived by the simple mechanical construction

326

Geothermal Energy Technology: a current-awareness bulletin  

SciTech Connect (OSTI)

This bulletin announces on a semimonthly basis the current worldwide information available on the technology required for economic recovery of geothermal energy and its use either directly or for production of electric power. The subject content encompasses: resource status and assessment, geology and hydrology of geothermal systems, geothermal exploration, legal and institutional aspects, economic and final aspects, environmental aspects and waste disposal, by-products, geothermal power plants, geothermal engineering, direct energy utilization, and geothermal data and theory.

Smith, L.B. (ed.)

1983-01-15T23:59:59.000Z

327

Fiber optic current monitor for high-voltage applications  

DOE Patents [OSTI]

A current monitor which derives its power from the conductor being measured for bidirectionally measuring the magnitude of current (from DC to above 50 khz) flowing through a conductor across which a relatively high level DC voltage is applied, includes a pair of identical transmitter modules connected in opposite polarity to one another in series with the conductor being monitored, for producing from one module a first light signal having an intensity directly proportional to the magnitude of current flowing in one direction through the conductor during one period of time, and from the other module a second light signal having an intensity directly proportional to the magnitude of current flowing in the opposite direction through the conductor during another period of time, and a receiver located in a safe area remote from the high voltage area for receiving the first and second light signals, and converting the same to first and second voltage signals having levels indicative of the magnitude of current being measured at a given time.

Renda, George F. (Plainsboro, NJ)

1992-01-01T23:59:59.000Z

328

Ionization tube simmer current circuit  

DOE Patents [OSTI]

A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current.

Steinkraus, Jr., Robert F. (Livermore, CA)

1994-01-01T23:59:59.000Z

329

Ionization tube simmer current circuit  

DOE Patents [OSTI]

A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current. 6 figures.

Steinkraus, R.F. Jr.

1994-12-13T23:59:59.000Z

330

Particle Detector / Beam Current Transformer  

E-Print Network [OSTI]

Particle Detector / Beam Current Transformer Analysis December 8, 2009 Harold G. Kirk #12;ShotSignal,A.U. Proton Bunch Number Beam Current Transformer - 17011 0 2 4 6 8 0 2 4 6 8 10 12 14 16 18 20 Integrated Transformer Pump 187829 (au) Probe 196504 (au) Ratios: Beam Current 1.046 SF 1.019 2.9% difference #12;Shot

McDonald, Kirk

331

Current Jobs | Argonne National Laboratory  

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

Job Openings Argonne National Laboratory is currently hiring Co-op students in the following areas: Facilities Management and Services Division: The Facilities Management and...

332

ARM - Lesson Plans: Ocean Currents  

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

Ocean Currents Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global...

333

Current Month Summary - Hanford Site  

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

Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met Data Met and Climate Data Summary Products Historical Weather Charts Contacts...

334

Breakout Session -- TEC Direction  

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

III: TEC III: TEC Direction and Priorities Presented to: Transportation External Coordination Working Group Presented by: Alex Thrower Office of Logistics Management February 7, 2008 San Antonio, Texas 2 Topics of Discussion * Transportation External Coordination Working Group (TEC) charter and membership * Topic group functions * Meeting format 3 TEC Charter and Membership * Mission - TEC was formed in 1992 to improve coordination among the Department of Energy (DOE) and external groups interested in the Department's transportation activities The Office of Civilian Radioactive Waste Management (OCRWM) co-chairs TEC with DOE's Environmental Management Program Provides an opportunity for broad based input and information exchange from varied organizations - Members meet semi-annually to participate in

335

Anomalous-viscosity current drive  

DOE Patents [OSTI]

The present invention relates to a method and apparatus for maintaining a steady-state current for magnetically confining the plasma in a toroidal magnetic confinement device using anomalous viscosity current drive. A second aspect of this invention relates to an apparatus and method for the start-up of a magnetically confined toroidal plasma.

Stix, T.H.; Ono, M.

1986-04-25T23:59:59.000Z

336

Direct Aerosol Forcing Uncertainty  

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

Understanding sources of uncertainty in aerosol direct radiative forcing (DRF), the difference in a given radiative flux component with and without aerosol, is essential to quantifying changes in Earth's radiation budget. We examine the uncertainty in DRF due to measurement uncertainty in the quantities on which it depends: aerosol optical depth, single scattering albedo, asymmetry parameter, solar geometry, and surface albedo. Direct radiative forcing at the top of the atmosphere and at the surface as well as sensitivities, the changes in DRF in response to unit changes in individual aerosol or surface properties, are calculated at three locations representing distinct aerosol types and radiative environments. The uncertainty in DRF associated with a given property is computed as the product of the sensitivity and typical measurement uncertainty in the respective aerosol or surface property. Sensitivity and uncertainty values permit estimation of total uncertainty in calculated DRF and identification of properties that most limit accuracy in estimating forcing. Total uncertainties in modeled local diurnally averaged forcing range from 0.2 to 1.3 W m-2 (42 to 20%) depending on location (from tropical to polar sites), solar zenith angle, surface reflectance, aerosol type, and aerosol optical depth. The largest contributor to total uncertainty in DRF is usually single scattering albedo; however decreasing measurement uncertainties for any property would increase accuracy in DRF. Comparison of two radiative transfer models suggests the contribution of modeling error is small compared to the total uncertainty although comparable to uncertainty arising from some individual properties.

Mccomiskey, Allison

337

Radio-Frequency Current Drive in a Fusion-Producing Plasma  

Science Journals Connector (OSTI)

A method for driving current in a fusion-producing plasma is proposed. Radio-frequency power is used to prohibit fusion-produced energetic particles from slowing down isotropically or to push them in a preferential direction. As a result, a net plasma current is generated whose efficiency is comparable to other current drive schemes.

D. K. Bhadra and C. Chu

1982-06-28T23:59:59.000Z

338

Current Drive in Recombining Plasma  

SciTech Connect (OSTI)

The Langevin equations describing the average collisional dynamics of suprathermal particles in nonstationary plasma remarkably admit an exact analytical solution in the case of recombining plasma. The current density produced by arbitrary particle fluxes is derived including the effect of charge recombination. Since recombination has the effect of lowering the charge density of the plasma, thus reducing the charged particle collisional frequencies, the evolution of the current density can be modified substantially compared to plasma with fixed charge density. The current drive efficiency is derived and optimized for discrete and continuous pulses of current, leading to the discovery of a nonzero "residual" current density that persists indefinitely under certain conditions, a feature not present in stationary plasmas.

P.F. Schmit and N.J. Fisch

2012-05-15T23:59:59.000Z

339

Energy current imaging method for time reversal in elastic media  

SciTech Connect (OSTI)

An energy current imaging method is presented for use in locating sources of wave energy during the back propagation stage of the time reversal process. During the back propagation phase of an ideal time reversal experiment, wave energy coalesces from all angles of incidence to recreate the source event; after the recreation, wave energy diverges in every direction. An energy current imaging method based on this convergence/divergence behavior has been developed. The energy current imaging method yields a smaller spatial distribution for source reconstruction than is possible with traditional energy imaging methods.

Anderson, Brian E [Los Alamos National Laboratory; Ulrich, Timothy J [Los Alamos National Laboratory; Le Bas, Pierre - Yves A [Los Alamos National Laboratory; Larmat, Carene [Los Alamos National Laboratory; Johnson, Paul A [Los Alamos National Laboratory; Guyer, Robert A [UNR; Griffa, Michele [ETH ZURICH

2009-01-01T23:59:59.000Z

340

Current  

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

E"Bdv, 1 where magnetic helicity, a measure of the knottedness of the magnetic field lines, is defined as KA"Bdv p z , p is the poloidal flux passing...

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


341

Foreign Direct Investment in U  

Gasoline and Diesel Fuel Update (EIA)

Foreign Direct Investment in U.S. Energy in 1998 Foreign Direct Investment in U.S. Energy in 1998 Foreign Direct Investment Foreign Direct Investment Foreign Direct Investment Foreign Direct Investment in U.S. Energy in U.S. Energy in U.S. Energy in U.S. Energy in 1998 in 1998 in 1998 in 1998 November 2000 Energy Information Administration/Foreign Direct Investment in U.S. Energy in 1998 Contacts This report was prepared in the Office of Energy Markets and End Use of the Energy Information Administration, U.S. Department of Energy, under the general direction of W. Calvin Kilgore. The project was directed by Mark E. Rodekohr, Director of the Energy Markets and Contingency Information Division (202) 586-1441, and Mary E. Northup, the Team Leader for Financial Analysis (202) 586-1383. Specific technical information concerning this

342

SRNL - Directions and Maps  

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

Map of SRS, with Georgia and South Carolina Map of SRS, with Georgia and South Carolina Directions and Maps The Savannah River National Laboratory is located at the Savannah River Site , a 310 square mile site located in the southeastern coastal area of the United States in the state of South Carolina. It is bordered to the west by the Savannah River and Georgia, and is close to several major cities, including Augusta and Savannah (Ga.), Columbia, Greenville, and Charleston (S.C.). It is in an area residents refer to as the Central Savannah River Area, or CSRA. The Aiken County Technology Laboratory (which houses SRNL's biotechnology laboratories and certain waste treatment technology laboratories) and the Center for Hydrogen Research are located at Aiken County's Savannah River Research Campus, located adjacent to SRS.

343

Semiconductor Alternating-Current Motor Drives and Energy Conservation  

Science Journals Connector (OSTI)

...required to avoid high heating losses in the motors...important user concerns-price, efficiency, and...been offered at a price thatjustified broad...direct-ly, causes motor heating, mechanical stress...000 barrels of oil equivalent per day...University, New Haven, Connecticut, and is currently...

D. J. BenDaniel; E. E. David Jr.

1979-11-16T23:59:59.000Z

344

Ring current intensity estimated from low-altitude proton observations  

E-Print Network [OSTI]

. Oksavik Department of Physics, University of Bergen, Bergen, Norway D. S. Evans NOAA Space Environment as a proxy for estimating the energy injection rate into the ring current (RC) due to energetic protons. The injection rate Q(t) is not based upon solar wind parameters but directly on the observed proton

Bergen, Universitetet i

345

Memorandum: Direction and Guidance for Implementing Direct DOE Relationship  

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

Direction and Guidance for Implementing Direct DOE Direction and Guidance for Implementing Direct DOE Relationship & Funding for the EMSSAB Memorandum: Direction and Guidance for Implementing Direct DOE Relationship & Funding for the EMSSAB From: Designated Federal Officer, Sandra L. Waisley (EM-11) To: SSAB Members (G. Stegner, J. Reising, G. Bowman, T. Taylor, C. Gertz, B. Murphie, S. McCracken, M. Marvin, J. Rampe, A. Doswell, C. Anderson, B. Wethington, S. Brennan, K. Kozeliski, D. Dollins, P. Halsey, Y. Sherman, L. Bratcher, R. Warther, K. Klein, R. Schepens, F. Lockhart, J. Allison, R. Erickson, E. Sellers, K. Carlson, G. Boyd, R. Butler) The memorandum informs of Assistant Secrectary Roberson's direction and guidance for implementing a DOE direct relationship and funding approach for EM's Site-Specific Advisory Board (EMSSAB).

346

Direct coal liquefaction process  

DOE Patents [OSTI]

An improved multistep liquefaction process for organic carbonaceous mater which produces a virtually completely solvent-soluble carbonaceous liquid product. The solubilized product may be more amenable to further processing than liquid products produced by current methods. In the initial processing step, the finely divided organic carbonaceous material is treated with a hydrocarbonaceous pasting solvent containing from 10% and 100% by weight process-derived phenolic species at a temperature within the range of 300.degree. C. to 400.degree. C. for typically from 2 minutes to 120 minutes in the presence of a carbon monoxide reductant and an optional hydrogen sulfide reaction promoter in an amount ranging from 0 to 10% by weight of the moisture- and ash-free organic carbonaceous material fed to the system. As a result, hydrogen is generated via the water/gas shift reaction at a rate necessary to prevent condensation reactions. In a second step, the reaction product of the first step is hydrogenated.

Rindt, John R. (Grand Forks, ND); Hetland, Melanie D. (Grand Forks, ND)

1993-01-01T23:59:59.000Z

347

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.4 mbs Dew Point Temp. 11 F Wind Direction 220 SW Wind Speed 4 mph Mixing Height 1500 m Station Pressure 29.28 inches Hg Ambient Temp. 29...

348

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1022.4 mbs Dew Point Temp. 12 F Wind Direction 30 NNE Wind Speed 7 mph Mixing Height 1000 m Station Pressure 29.38 inches Hg Ambient Temp. 33...

349

Current HMS Observations - Hanford Site  

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

9000 ft Visibility 15.0 miles Liquid Precip none Frozen Precip none Obstructions none Sea-Level Pressure 1019.4 mbs Dew Point Temp. 20 F Wind Direction 40 NE Wind Speed 4...

350

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1020.2 mbs Dew Point Temp. 21 F Wind Direction 290 WNW Wind Speed 3 mph Mixing Height 200 m Station Pressure 29.31 inches Hg Ambient Temp. 24 F...

351

Current HMS Observations - Hanford Site  

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

Obstructions none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 20 F Wind Direction 0 Wind Speed 0 mph Mixing Height 200 m Station Pressure 29.29 inches Hg Ambient Temp. 24 F...

352

Current HMS Observations - Hanford Site  

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

9000 ft Visibility 15.0 miles Liquid Precip none Frozen Precip none Obstructions none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 20 F Wind Direction 40 NE Wind Speed 2...

353

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1022.2 mbs Dew Point Temp. 14 F Wind Direction 350 N Wind Speed 4 mph Mixing Height 500 m Station Pressure 29.37 inches Hg Ambient Temp. 30 F...

354

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.0 mbs Dew Point Temp. 9 F Wind Direction 300 WNW Wind Speed 6 mph Mixing Height 1500 m Station Pressure 29.27 inches Hg Ambient Temp. 31...

355

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.6 mbs Dew Point Temp. 21 F Wind Direction 270 W Wind Speed 2 mph Mixing Height 200 m Station Pressure 29.29 inches Hg Ambient Temp. 24 F...

356

Current HMS Observations - Hanford Site  

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

15.0 miles Liquid Precip none Frozen Precip none Obstructions none Sea-Level Pressure 1019.4 mbs Dew Point Temp. 21 F Wind Direction 20 NNE Wind Speed 1 mph Mixing Height 2...

357

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1020.4 mbs Dew Point Temp. 20 F Wind Direction 310 NW Wind Speed 4 mph Mixing Height 200 m Station Pressure 29.31 inches Hg Ambient Temp. 25 F...

358

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 17 F Wind Direction 90 E Wind Speed 4 mph Mixing Height 200 m Station Pressure 29.29 inches Hg Ambient Temp. 26 F...

359

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1022.9 mbs Dew Point Temp. 8 F Wind Direction 330 NNW Wind Speed 6 mph Mixing Height 1000 m Station Pressure 29.39 inches Hg Ambient Temp. 38...

360

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1022.6 mbs Dew Point Temp. 11 F Wind Direction 20 NNE Wind Speed 7 mph Mixing Height 1000 m Station Pressure 29.38 inches Hg Ambient Temp. 34...

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


361

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1022.6 mbs Dew Point Temp. 10 F Wind Direction 360 N Wind Speed 5 mph Mixing Height 1000 m Station Pressure 29.38 inches Hg Ambient Temp. 36...

362

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.1 mbs Dew Point Temp. 8 F Wind Direction 290 WNW Wind Speed 6 mph Mixing Height 1500 m Station Pressure 29.28 inches Hg Ambient Temp. 31...

363

Current HMS Observations - Hanford Site  

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

Obstructions none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 21 F Wind Direction 0 Wind Speed 0 mph Mixing Height 200 m Station Pressure 29.29 inches Hg Ambient Temp. 25 F...

364

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.6 mbs Dew Point Temp. 13 F Wind Direction 170 S Wind Speed 2 mph Mixing Height 1500 m Station Pressure 29.29 inches Hg Ambient Temp. 27...

365

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 8 F Wind Direction 250 WSW Wind Speed 6 mph Mixing Height 1500 m Station Pressure 29.29 inches Hg Ambient Temp. 30...

366

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 6 F Wind Direction 220 SW Wind Speed 6 mph Mixing Height 500 m Station Pressure 29.29 inches Hg Ambient Temp. 31 F...

367

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1022.7 mbs Dew Point Temp. 9 F Wind Direction 330 NNW Wind Speed 7 mph Mixing Height 1000 m Station Pressure 29.38 inches Hg Ambient Temp. 37...

368

Current HMS Observations - Hanford Site  

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

none Sea-Level Pressure 1019.5 mbs Dew Point Temp. 19 F Wind Direction 80 E Wind Speed 4 mph Mixing Height 200 m Station Pressure 29.29 inches Hg Ambient Temp. 26 F...

369

Current HMS Observations - Hanford Site  

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

15.0 miles Liquid Precip none Frozen Precip none Obstructions none Sea-Level Pressure 129.4 mbs Dew Point Temp. 21 F Wind Direction 30 NNE Wind Speed 2 mph Mixing Height 3...

370

A Geothermic Generating Plant  

Science Journals Connector (OSTI)

... energy is generated in the turbo-alternators at 25,000 volts and transmitted to the substations along the Viareggio–Rome railway, where it is converted to 3,000 volts direct ...

1939-10-28T23:59:59.000Z

371

A Compact Parallel-plane Perpendicular-current Feed for a Modified Equiangular Spiral Antenna and Related Circuits  

E-Print Network [OSTI]

-plane perpendicular- current feed. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 34 23 Characteristic impedance of the parallel strip-line versus distance in the y-direction. : : : : : : : : : : : : : : : : : : : : : : : : : : : : 36 24 Magnitude...

Eubanks, Travis Wayne

2011-08-08T23:59:59.000Z

372

Rank and directional entropy Rank and directional entropy  

E-Print Network [OSTI]

Rank and directional entropy Rank and directional entropy E. Arthur (Robbie) Robinson (Joint work with Ayse Sahin) The George Washington University Talk at KIAS, Seoul, Korea. September 27, 2010 #12;Rank and directional entropy Outline 1 Introduction 2 Finite rank, Z case 3 The formal definition 4 The Z2 case 5

Robinson Jr., E. Arthur (Robbie)

373

Clean Currents | Open Energy Information  

Open Energy Info (EERE)

Currents Currents Jump to: navigation, search Logo: Clean Currents Name Clean Currents Address 155 Gibbs St. Suite 425 Place Rockville, Maryland Zip 20850 Sector Wind energy Coordinates 39.08637°, -77.152069° 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":39.08637,"lon":-77.152069,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

374

Inverter Using Current Source Topology  

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

of the new current-fed Trans-ZSI with wider motoring operation range V in 100 V, transformer turns ratio2 * Comparison of voltage boost ratio vs. duty ratio D A New...

375

Bioenergy Technologies Office New Directions  

Broader source: Energy.gov [DOE]

New Directions and New Business Opportunities for BETO Valerie Reed, Acting Director, BETO, U.S. Department of Energy

376

Multiple direction vibration fixture  

DOE Patents [OSTI]

An apparatus for simulating a rocket launch environment on a test item undergoing centrifuge testing by subjecting the item simultaneously or separately to vibration along an axis of centripetal force and along an axis perpendicular to the centripetal force axis. The apparatus includes a shaker motor supported by centrifuge arms and a right angle fixture pivotally connected to one of the shaker motor mounts. When the shaker motor vibrates along the centripetal force axis, the vibrations are imparted to a first side of the right angle fixture. The vibrations are transmitted 90 degrees around the pivot and are directed to a second side of the right angle fixture which imparts vibrations perpendicular to the centripetal force axis. The test item is in contact with a third side of the right angle fixture and receives both centripetal-force-axis vibrations and perpendicular axis vibrations simultaneously. A test item can be attached to the third side near the flexible coupling or near the air bag to obtain vibrations along the centripetal force axis or transverse to the centripetal force axis.

Cericola, Fred (Albuquerque, NM); Doggett, James W. (Albuquerque, NM); Ernest, Terry L. (Albuquerque, NM); Priddy, Tommy G. (Rockville, MD)

1991-01-01T23:59:59.000Z

377

Cofinal types of directed orders  

E-Print Network [OSTI]

, ) directed partial orders #12;Cofinal types (P, ), (Q, ) directed partial orders Tukey reducibility: (P orders Tukey reducibility: (P, ) T (Q, ) if f : P Q X P unbounded = f [X] Q unbounded g : Q P Y Q cofinal = g[Y ] P cofinal #12;Cofinal types (P, ), (Q, ) directed partial orders Tukey reducibility: (P

Mátrai, Tamás

378

Current results of the tandem mirror experiment  

SciTech Connect (OSTI)

The basic operating characteristics of the Tandem Mirror Experiment, (TMX) at the Lawrence Livermore Laboratory in the USA have been established. Tandem-mirror plasmas have been produced using neutral-beam-fueled end plugs and a gas-fueled center cell. An axial potential well between the end plugs has been measured. There is direct evidence that this potential well enhances the axial confinement of the center-cell ions. The observed densities and loss currents are consistent with preliminary studies of the particle sources and losses near the magnetic axis. The observed confinement is consistent with theory when plasma fluctuations are low. When the requirement of drift-cyclotron loss-cone mode stability is violated, the plasma fluctuations degrade the center-cell confinement.

Drake, R.P.

1980-04-09T23:59:59.000Z

379

MHK Technologies/Tide Current Converter | Open Energy Information  

Open Energy Info (EERE)

Tide Current Converter Tide Current Converter < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Tide Current Converter.jpg Technology Profile Primary Organization Neptune Systems Technology Resource Click here Current Technology Type Click here Oscillating Wave Surge Converter Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The Tide Current Converter is based on the direct interaction between a magnetic electric and fluid flow field when a conductive fluid moves through a magnetic field electrical power is generated directly inside the fluid volume In this marine application the sea water itself is the conductive fluid A static antenna like structure generates the magnetic fields and at the same time taps the electrical power from the fluid current The configuration resembles a dynamo the sea water being the rotor and the antenna the stator The main advantage of the Magnetohydrodynamics MHD conversion is the absence of moving mechanical drive train components which make contemporary systems vulnerable and maintenance demanding

380

Space ethics to test directed panspermia  

E-Print Network [OSTI]

The hypothesis that Earth was intentionally seeded with life by a preceding extraterrestrial civilization is believed to be currently untestable. However, analysis of the situation where humans themselves embark on seeding other planetary systems motivated by survival and propagation of life reveals at least two ethical issues calling for specific solutions. Assuming that generally intelligence evolves ethically as it evolves technologically, the same considerations might be applied to test the hypothesis of directed panspermia: if life on Earth was seeded intentionally, the two ethical requirements are expected to be satisfied, what appears to be the case.

Makukov, Maxim A

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Direct growth of graphene on Si(111)  

SciTech Connect (OSTI)

Due to the need of integrated circuit in the current silicon technology, the formation of graphene on Si wafer is highly desirable, but is still a challenge for the scientific community. In this context, we report the direct growth of graphene on Si(111) wafer under appropriate conditions using an electron beam evaporator. The structural quality of the material is investigated in detail by reflection high energy electron diffraction, Auger electron spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, high resolution scanning electron microscopy, atomic force microscopy, and scanning tunneling microscopy. Our experimental results confirm that the quality of graphene is strongly dependent on the growth time during carbon atoms deposition.

Thanh Trung, Pham, E-mail: phamtha@fundp.ac.be; Joucken, Frédéric; Colomer, Jean-François; Robert, Sporken [Research Center in Physics of Matter and Radiation (PMR), University of Namur (FUNDP), 61 Rue de Bruxelles, 5000 Namur (Belgium); Campos-Delgado, Jessica; Raskin, Jean-Pierre [Electrical Engineering (ELEN), Institute of Information and Communication Technologies, Electronics and Applied Mathematics (ICTEAM), Université catholique de Louvain UCL, 3 place du Levant, Louvain-la-Neuve (Belgium); Hackens, Benoît; Santos, Cristiane N. [Nanoscopic physics (NAPS), Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain UCL, 2 chemin du Cyclotron, Louvain-la-Neuve (Belgium)

2014-06-14T23:59:59.000Z

382

EIS-0123: Direct Service Industry Options  

Broader source: Energy.gov [DOE]

BPA proposes to implement one or more options to reduce load fluctuations and revenue uncertainty resulting from its electrical service to 10 aluminum smelters and its other direct service industrial customers. BPA believes these options will give BPA greater ability to plan for power needs and help to maintain its relatively strong financial position during the current period of power surplus. They also are expected to enhance BPA's ability to repay the U.S. Treasury. In turn, BPA rates to other customers would stabilize.

383

Managed DirectX First Steps: Direct3D Basics and DirectX vs. GDI+  

Science Journals Connector (OSTI)

DirectX refers to a collection of Microsoft-created APIs and technologies that help developers more directly access the hardware features of a computer. It was originally released in 1996 as a way fo...

David Weller; Alexandre Santos Lobão…

2004-01-01T23:59:59.000Z

384

On the stabilization of neoclassical magnetohydrodynamic tearing modes using localized current drive or heating  

Science Journals Connector (OSTI)

The effectiveness of using localized current drive or heating to suppress the formation and growth of neoclassical magnetohydrodynamic(MHD) tearing modes is addressed. The most efficient way to use an auxiliary current source is to cause current to flow in the same direction as the equilibrium bootstrap current and phase the current relative to the magnetic island such that the current is deposited on the O-point of the island. Theoretical estimates for the amount of required current to suppress the formation of a large magnetic island is of order a few percent of the equilibrium current. If the suppression is successful the magnetic island will saturate at a width of order the radial localization width of the current source. Localized heating at the O-point of the magnetic island can also produce stabilizing effects relative to magnetic island growth. The effects of the driven current or heating can be illustrated by using a phase diagram of the island growth.

C. C. Hegna; J. D. Callen

1997-01-01T23:59:59.000Z

385

Current Fluctuations in a Superconducting Circuit Carrying a Circulating Current  

Science Journals Connector (OSTI)

At 4.2°K and 5.514 Gc/sec persistent currents in lead, vanadium, and niobium are free from fluctuations to less than 1.1×10-9, 4.3×10-9, and 8.9×10-10 of full shot noise, respectively.

H. J. Fink and A. Zacharias

1964-07-06T23:59:59.000Z

386

Variable current speed controller for eddy current motors  

DOE Patents [OSTI]

A speed control system for eddy current motors is provided in which the current to the motor from a constant frequency power source is varied by comparing the actual motor speed signal with a setpoint speed signal to control the motor speed according to the selected setpoint speed. A three-phase variable voltage autotransformer is provided for controlling the voltage from a three-phase power supply. A corresponding plurality of current control resistors is provided in series with each phase of the autotransformer output connected to inputs of a three-phase motor. Each resistor is connected in parallel with a set of normally closed contacts of plurality of relays which are operated by control logic. A logic circuit compares the selected speed with the actual motor speed obtained from a digital tachometer monitoring the motor spindle speed and operated the relays to add or substract resistance equally in each phase of the motor input to vary the motor current to control the motor at the selected speed.

Gerth, H.L.; Bailey, J.M.; Casstevens, J.M.; Dixon, J.H.; Griffith, B.O.; Igou, R.E.

1982-03-12T23:59:59.000Z

387

Electrochemically Stable Cathode Current Collectors for Rechargeable...  

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

Stable Cathode Current Collectors for Rechargeable Magnesium Batteries . Electrochemically Stable Cathode Current Collectors for Rechargeable Magnesium Batteries . Abstract:...

388

Chiral currents in gold nanotubes  

Science Journals Connector (OSTI)

Results are presented for the electron current in gold chiral nanotubes (AuNTs). Starting from the band structure of (4,3) and (5,3) AuNTs, we find that the magnitude of the chiral currents are greater than those found in carbon nanotubes. We also calculate the associated magnetic flux inside the tubes and find this to be higher than the case of carbon nanotubes. Although (4,3) and (5,3) AuNTs carry transverse momenta of similar magnitudes, the low-bias magnetic flux carried by the former is far greater than that carried by the latter. This arises because the low-bias longitudinal current carried by a (4,3) AuNT is significantly smaller than that of a (5,3) AuNT.

D. Zs. Manrique; J. Cserti; C. J. Lambert

2010-02-04T23:59:59.000Z

389

BGE_Comments_CurrentComms.pdf  

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

Reading (based Reading (based on hourly reads) Cellular network 5000 30 minutes 19.2K >90% <15 sec >95% 4 1 2 Direct Load Control 22 250K 8 hours 1K 100% <120 sec >99% 2 1 2 Real time pricing At the customer premises At charging stations 53 1755 8 hours 9600 bps >90% 5 sec <5 per mo. >95% 5 2 1 CBC-5000 2330 CBC-7000 1621 LVC N/A 638 4 hours N/A N/A N/A N/A N/A N/A N/A See comment See comment N/A N/A Customer Calls N/A N/A N/A N/A N/A N/A N/A N/A Applications Distributed Generation Management in-Home Display of Customer Usage Automated Feeder Switching Transformer Monitoring Voltage and Current Monitoring 8 hours 1K >60% Capacitor Bank Control Fault Current Indicator 10 sec >99% 4 1 2 Quantified Estimates Ranking of Relative Importance of Each Estimated Number of End Point Devices to

390

Current responsive devices for synchronous generators  

DOE Patents [OSTI]

A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current.

Karlicek, Robert F. (Fullerton, CA)

1983-01-01T23:59:59.000Z

391

Leakage resistance and current inferred from CDIF operating data  

SciTech Connect (OSTI)

Axial leakage current is difficult to measure directly. Spacial and temporal variations tend to cloud the interpretation of local measurements such as the current or voltage between any two neighboring electrodes. Also the measurement process itself tends to affect the result in an unpredictable manner. Therefore it is desireable to seek an indirect method that is based upon averages over a distance equivalent to one duct diameter or more, does not perturb the system, and is based upon data already collected. An indirect method is described here together with the results obtained when it is applied to nearly all CDIF runs. When correlated, the data suggest that leak current is primarily a function of Hall parameter and Faraday current while only weakly dependent upon axial field. Possible reasons for this discussed. 4 refs., 7 figs.

Rosa, R.J.

1990-01-01T23:59:59.000Z

392

Quantum Backflow States from Eigenstates of the Regularized Current Operator  

E-Print Network [OSTI]

We present an exhaustive class of states with quantum backflow -- the phenomenon in which a state consisting entirely of positive momenta may have negative current and the probability flows in the opposite direction to the momentum. They are characterized by a general function of momenta subject to very weak conditions. Such a family of states is of interest in the light of a recent experimental proposal to measure backflow. We find one particularly simple state which has surprisingly large backflow -- about 41 percent of the lower bound on flux derived by Bracken and Melloy. We study the eigenstates of a regularized current operator and we show how some of these states, in a certain limit, lead to our class of backflow states. This limit also clarifies the correspondence between the spectrum of the regularized current operator, which has just two non-zero eigenvalues in our chosen regularization, and the usual current operator.

J. J. Halliwell; E. Gillman; O. Lennon; M. Patel; I. Ramirez

2013-09-11T23:59:59.000Z

393

Distributed Voltage and Current Control of Multi-Terminal High-Voltage Direct  

E-Print Network [OSTI]

to AC transmission systems. Off-shore wind farms also typically require HVDC power transmission This work was supported in part by the European Commission by the Hycon2 project, the Swedish Research

Dimarogonas, Dimos

394

Ontology and database mapping: a survey of current implementations and future directions  

Science Journals Connector (OSTI)

In this paper we discuss the problem of mapping relational database contents and ontologies. The motivation lies in the fact that during the latest years, the evolution in Web Technologies rendered the addition of intelligence to the information residing ... Keywords: database, mapping, ontology, semantic web

Nikolaos Konstantinou; Dimitrios-Emmanuel Spanos; Nikolas Mitrou

2008-03-01T23:59:59.000Z

395

Current Directions in the Practice of Environmental Risk Assessment in the United Kingdom  

Science Journals Connector (OSTI)

Environmental risk assessment, where applied to these situations, must be able to inform and improve regulatory and business decisions on how best to manage risks from environmental hazards. ... The handling of “risk” by governments and their agencies has moved up the political agenda in the last 10 years. ... The Environment Agency and DEFRA have put significant investment into understanding environmental extremes. ...

Simon J. Pollard; Roger Yearsley; Nick Reynard; Ian C. Meadowcroft; Raquel Duarte-Davidson; Susan L. Duerden

2001-12-28T23:59:59.000Z

396

Nonlocal control of electron temperature in short direct current glow discharge plasma  

SciTech Connect (OSTI)

To demonstrate controlling the electron temperature in nonlocal plasma, experiments have been performed on a short (without positive column) dc glow discharge with a cold cathode by applying different voltages to the conducting discharge wall. The experiments have been performed for low-pressure noble gas discharges. The applied voltage can modify trapping the energetic electrons emitted from the cathode sheath and arising from the atomic and molecular processes in the plasma within the device volume. This phenomenon results in the energetic electrons heating the slow plasma electrons, which consequently modifies the electron temperature. Furthermore, a numerical model of the discharge has demonstrated the electron temperature modification for the above case.

Demidov, V. I. [Department of Optics and Spectroscopy, St. Petersburg State University, St. Petersburg 199034 (Russian Federation); International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation); Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506 (United States); Kudryavtsev, A. A.; Stepanova, O. M. [Department of Optics and Spectroscopy, St. Petersburg State University, St. Petersburg 199034 (Russian Federation); Kurlyandskaya, I. P. [International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation); St. Petersburg University of State Fire Service of EMERCOM RF, Murmansk Branch, Murmansk 183040 (Russian Federation)

2014-09-15T23:59:59.000Z

397

Three dimensional complex plasma structures in a combined radio frequency and direct current discharge  

SciTech Connect (OSTI)

We report on the first detailed analysis of large three dimensional (3D) complex plasma structures in experiments performed in pure rf and combined rf+dc discharge modes. Inductively coupled plasma is generated by an rf coil wrapped around the vertically positioned cylindrical glass tube at a pressure of 0.3 mbar. In addition, dc plasma can be generated by applying voltage to the electrodes at the ends of the tube far from the rf coil. The injected monodisperse particles are levitated in the plasma below the coil. A scanning laser sheet and a high resolution camera are used to determine the 3D positions of about 10{sup 5} particles. The observed bowl-shaped particle clouds reveal coexistence of various structures, including well-distinguished solid-like, less ordered liquid-like, and pronounced string-like phases. New criteria to identify string-like structures are proposed.

Mitic, S.; Morfill, G. E. [Max-Planck-Institut fuer extraterrestrische Physik, D-85741 Garching (Germany); Klumov, B. A. [Joint Institute for High Temperatures, Moscow 125412 (Russian Federation); Khrapak, S. A. [Max-Planck-Institut fuer extraterrestrische Physik, D-85741 Garching (Germany); Joint Institute for High Temperatures, Moscow 125412 (Russian Federation)

2013-04-15T23:59:59.000Z

398

Microfabricated electrophoresis systems for DNA sequencing and genotyping applications: current technology and future directions  

Science Journals Connector (OSTI)

...pre-existing laboratory infrastructure, they are readily deployable...the migration of DNAprotein hybrids relative to that of the DNA...dsDNA ladders glasssilicon hybrid 1.0 30 25 6 min (500 bp...dsDNA ladders glasssilicon hybrid 0.5 30 25 15 min (1000...

2004-01-01T23:59:59.000Z

399

Current-scattered (?) detrital remanence directions in the Zn-rich Pennsylvanian Stark black shale, USA  

Science Journals Connector (OSTI)

......thermal analyses, however, the oil was not completely removed because...surface water in Zn, V and other heavy minerals that were subsequently...Pennsylvanian black shales of Missouri and Kansas, Econ. Geol...2004. Paleozoic Succession in Missouri, Part 5-Pennsylvanian Subsystem......

K. Kawasaki; D. T. A. Symons; R. M. Coveney; Jr.

2007-11-01T23:59:59.000Z

400

Characteristics of a Direct Current-driven plasma jet operated in open air  

SciTech Connect (OSTI)

A DC-driven plasma jet has been developed to generate a diffuse plasma plume by blowing argon into the ambient air. The plasma plume, showing a cup shape with a diameter of several centimeters at a higher voltage, is a pulsed discharge despite a DC voltage is applied. The pulse frequency is investigated as a function of the voltage under different gap widths and gas flow rates. Results show that plasma bullets propagate from the hollow needle to the plate electrode by spatially resolved measurement. A supposition about non-electroneutral trail of the streamer is proposed to interpret these experimental phenomena.

Li, Xuechen; Bao, Wenting [College of Physics Science and Technology, Hebei University, Baoding 071002 (China) [College of Physics Science and Technology, Hebei University, Baoding 071002 (China); Key Laboratory of Photo-Electronics Information Materials of Hebei Province, Baoding 071002 (China); Di, Cong; Jia, Pengying [College of Physics Science and Technology, Hebei University, Baoding 071002 (China)] [College of Physics Science and Technology, Hebei University, Baoding 071002 (China)

2013-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "volt direct current" 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

Sulfur-Selective Detection with the FPD: Current Enigmas, Practical Usage, and Future Directions  

Science Journals Connector (OSTI)

......flame species may be a factor. However, such absorption losses are probably not significant except when the sulfur levels ex ceed several tens of nanograms, since the known flame species have relatively low gas-phase molar absorptivities at the typical......

S.O. Farwell; C.J. Barinaga

1986-11-01T23:59:59.000Z

402

Tissue-Based Research in Kidney Cancer: Current Challenges and Future Directions  

Science Journals Connector (OSTI)

...sectioning. To minimize the waste of tissue, laboratories...slides in paraffin before storage and storage in a nitrogen...influenced by short- and long-term storage conditions of both tissue...Rimm DL, Camp RL. Long-term preservation of antigenicity...

Sabina Signoretti; Gennady Bratslavsky; Frederick M. Waldman; Victor E. Reuter; John Haaga; Maria Merino; George V. Thomas; Michael R. Pins; Towia Libermann; John Gillespie; Joseph E. Tomaszewski; Carolyn C. Compton; Andrew Hruszkewycz; W. Marston Linehan; and Michael B. Atkins

2008-06-15T23:59:59.000Z

403

Immunotherapy for myeloid leukemias: current status and future directions K el-Shami and BD Smith  

E-Print Network [OSTI]

Smith Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA Myeloid leukemias

Cai, Long

404

Tissue-Based Research in Kidney Cancer: Current Challenges and Future Directions  

Science Journals Connector (OSTI)

...LabMAP profiling technology (Luminex Corp...standardized phlebotomy procedures. Handling and processing...Analysis The LabMAP technology (Luminex) combines...following the procedures recommended by...tree) was then applied to 10 of data...

Sabina Signoretti; Gennady Bratslavsky; Frederick M. Waldman; Victor E. Reuter; John Haaga; Maria Merino; George V. Thomas; Michael R. Pins; Towia Libermann; John Gillespie; Joseph E. Tomaszewski; Carolyn C. Compton; Andrew Hruszkewycz; W. Marston Linehan; and Michael B. Atkins

2008-06-15T23:59:59.000Z

405

Development of a direct current power system for a multi-node cabled ocean observatory system  

Science Journals Connector (OSTI)

Due to the shortage of suitable research methods for real-time and long-term observation of oceans, an innovative approach that can provide abundant power and wide bandwidth is being developed worldwide ... , we ...

Yan-hu Chen; Can-jun Yang; De-jun Li; Bo Jin…

2012-08-01T23:59:59.000Z

406

EIS-0103: New England/Hydro-Quebec 450-kV Direct Current Transmission Line Interconnection  

Broader source: Energy.gov [DOE]

The Economic Regulatory Administration prepared this statement to evaluate the environmental impacts of the construction, maintenance and operation of a 57-mile transmission line from Monroe, New Hampshire, to the U.S./Canadian border for the purpose of economic exchange of power and increased reliability.

407

Bi-directional Current-fed Medium Frequency Transformer Isolated AC-DC Converter  

E-Print Network [OSTI]

and the development of new grid systems like HVDC transmission lines. The new solution proposed needs to incorporate methods for the renewable sources to receive power for monitoring and control, during periods of zero production. This calls for a power converter...

Essakiappan, Somasundaram

2011-08-08T23:59:59.000Z

408

Identification of ions near HVDC (high-voltage direct-current) transmission lines: Final report  

SciTech Connect (OSTI)

Positive and negative ion species were identified and studied at two separate field sites and one laboratory site. The first field study was conducted under an operating HVDC transmission line. The second was near a HVDC test line and measurements were performed with the line in both an energized and de-energized state. During clear, sunny days HSO/sub 4//sup /minus///center dot/H/sub 2/SO/sub 4/ was observed to be the dominant negative ion in the natural ion spectrum. At night, however, HSO/sub 4//sup /minus// core ions virtually disappeared, and were replaced by NO/sub 3//sup /minus// core ions and their first nitric acid cluster. Both negative spectra also typically contained lesser concentrations of the malonate ion. The transmission line negative spectra were similar but were typically dominated by the NO/sub 3//sup /minus// core ions during both day and night. The positive ions observed under HVDC lines were typically either NH/sub 4//sup +/ or C/sub 5/H/sub 6/N/sup +/, which reacted with higher proton affinity species (such as methylpyridines, trimethylamine and quinoline) farther from or in the absence of the transmission line. The observed differences between natural and anthropogenic ion spectra near HVDC lines are attributed primarily to a shortening of ion lifetimes by the strong electric field associated with the HVDC lines. One exception is the production of potassium and probably sodium based ions from the decomposition of insects in transmission line coronas. 22 refs., 29 figs.

Eisele, F.L.

1989-05-01T23:59:59.000Z

409

UNL WATER CENTER WATER CURRENT  

E-Print Network [OSTI]

INSIDE UNL WATER CENTER WATER CURRENT PROTECTING NEBRASKAíS WATER RESOURCES THROUGH RESEARCH with a vision, thereís an untapped market using resources right under our feet,î the University of Nebraska outdoors in India, Bangladesh, China and Viet- nam. Thousands of them have been grown to harvest

Nebraska-Lincoln, University of

410

Current vs. Voltage Feedback Amplifiers  

E-Print Network [OSTI]

?' In most applications, the differences between current feedback (CFB) and voltage feedback (VFB) are not apparent. Today's CFB and VFB amplifiers have comparable performance, but there are cer- tain unique Performance · Feedback Freedom Aside from the well-known attribute of CFB amplifiers, gain

Lanterman, Aaron

411

Current Issue June 10, 2009  

E-Print Network [OSTI]

Current Issue June 10, 2009 Vol. 109, No. 15 LETTERS CLASS NOTES MEMORIALS ALUMNI PROFILES SEARCH > Alum's startup company bets on Princeton research Alum's startup company bets on Princeton research materials-science innovation into a promising startup company. John Lettow '95, president and co

Aksay, Ilhan A.

412

ESnet Network Measurement Current Status  

E-Print Network [OSTI]

1 ESnet Network Measurement Current Status Joe Metzger Jan 24th 2008 ESCC meeting Energy SciencesSONAR collaboration focused on dynamic hybrid network issues ­ publication, visualization, and analysis of dynamic Architecture ­ Protocols based on the Open Grid Forum Network Measurement Working Group Schemas · Several

413

Overmodulation in Current Controlled Drives  

E-Print Network [OSTI]

220 Chapter 5 Overmodulation in Current Controlled Drives 5.1 Introduction The performance of voltage feedforward controlled constant V f PWM-VSI drives is insu cient for most industrial processes performance control methods. Electric traction, el- evators, textile machines, paper and plastic machines

Hava, Ahmet

414

Optimization of Current Carrying Multicables  

E-Print Network [OSTI]

approach. Keywords Shape optimization · Genetic algorithm · Electric cables · Finite element method · Joule material, space and weight, manufacturers reduce cable diameters which is only possible to a certain extend multicables Helmut Harbrecht · Florian Loos Received: date / Accepted: date Abstract High currents in cable

Kraft, Hanspeter

415

Rotation of tokamak halo currents  

SciTech Connect (OSTI)

During tokamak disruptions, halo currents, which can be tenths of the total plasma current, can flow at the plasma edge along the magnetic field lines that intercept the chamber walls. Non-axisymmetric halo currents are required to maintain force balance as the plasma kinks when the edge safety factor drops to about two in a vertical displacement event. The plasma quickly assumes a definite toroidal velocity v{sub a}(r) with respect to that of the magnetic kink, v{sub k}, where v{sub a}(r) is set by the radial electric field required for ambipolarity. The plasma velocity, v{sub pl}=v{sub a}+v{sub k}, near the edge is influenced by the interaction with neutrals and with the potential in the halo required for quasi-neutrality on open magnetic field lines, and the plasma velocity in the core is influenced by external error fields. When plasma effects dominate magnetic locking, the magnetic kink should rotate at a diamagnetic speed of either the edge or the core. If the magnetic field lines of the halo plasma intercept the wall at locations of very different electrical conductivity, the toroidal rotation of the halo currents can intermittently stall at wall locations of high conductivity. Such stalling is seen in experiments. The toroidal phase difference between the stalled halo currents and the kink, which is expected to rotate smoothly, must satisfy {delta}{phi}<{+-}{pi}/2. A concern cited by ITER engineers is that the time varying force of the rotating halo could substantially increase the disruption loads on in-vessel components.

Boozer, Allen H. [Department of Applied Physics and Applied Mathematics Columbia University, New York, New York 10027 (United States)

2012-05-15T23:59:59.000Z

416

NREL: Learning - Geothermal Direct Use  

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

Direct Use Direct Use Photo of alligators on a farm. Geothermally heated waters allow alligators to thrive on a farm in Colorado, where temperatures can drop below freezing. Geothermal reservoirs of hot water, which are found a few miles or more beneath the Earth's surface, can be used to provide heat directly. This is called the direct use of geothermal energy. Geothermal direct use has a long history, going back to when people began using hot springs for bathing, cooking food, and loosening feathers and skin from game. Today, hot springs are still used as spas. But there are now more sophisticated ways of using this geothermal resource. In modern direct-use systems, a well is drilled into a geothermal reservoir to provide a steady stream of hot water. The water is brought up through

417

Direct particle acceleration by two identical crossed radially polarized laser beams  

SciTech Connect (OSTI)

Electrons and {alpha} particles injected midway between two ultrahigh intensity crossed laser beams of radial polarization are shown to be accelerated in vacuum to several gigaelectron volts and to have average energy gradients in excess of 150 GeV/m. A unique model of the crossing beams is suggested, which maximizes the particle energy gain and minimizes the particle-beam diffraction.

Salamin, Yousef I. [Department of Physics, American University of Sharjah, P.O. Box 26666, Sharjah (United Arab Emirates)

2010-07-15T23:59:59.000Z

418

A Full Field Inversion Method for Acoustic Tomography of Ocean Currents  

Science Journals Connector (OSTI)

An extension of the matched field inversion technique to include oceanic current tomography is considered. Matching of the non-reciprocity of acoustic fields propagated in opposite directions (instead of match...

O. A. Godin; D. Yu. Mikhin; A. V. Mokhov

1995-01-01T23:59:59.000Z

419

Current Wealth, Housing Purchase, and Private Housing Loan Demand in Japan  

Science Journals Connector (OSTI)

Japanese households accumulate wealth for down payments at a high rate. Therefore, current wealth plays an important role in home acquisition as well as public loans whose direct mortgage lending is a strong s...

Yoko Moriizumi

2000-07-01T23:59:59.000Z

420

MHK Technologies/Device for the Power Advantage of Sea Currents | Open  

Open Energy Info (EERE)

for the Power Advantage of Sea Currents for the Power Advantage of Sea Currents < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Device for the Power Advantage of Sea Currents.jpg Technology Profile Primary Organization Carmelo Vell n Technology Resource Click here Current Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The project is a device for connection of turbines or hydraulic wheels in order to obtain energy from a water current variable in depth and direction of flow Its installation is executed by a mechanism of pivots in a direct way or a ballast at the sub aqueous bottom Its particular hydrodynamic morphology contributes to the direction and stabilization of all the set in the direction and sine of the current It has a series of devices able to measure the intensity of the current flow to orient the equipment towards the most favorable angle of attack of that flow towards the turbine It s applicable to any type of water current but it s especially suitable for the location in a basic sea current It allows to lodge different types from turbines or hydraulic wheels with the main object of the obtaining of energy preferably electrical which can be obtained by the combination of the turbine installed with a generator The project is placed then in the scope of the ecological and rene

Note: This page contains sample records for the topic "volt direct current" 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

Policy Procedure Administrative Directive Title: _____________________________________  

E-Print Network [OSTI]

Policy ­ Procedure ­ Administrative Directive Title: _____________________________________ Policy-President _____________ See also: Related Policies, Procedures and Agreements: Relevant Legislation and Regulations: ____________________________________________________________________________ Background and Purpose: ____________________________________________________________________________ Policy

Northern British Columbia, University of

422

Direct cooled power electronics substrate  

DOE Patents [OSTI]

The disclosure describes directly cooling a three-dimensional, direct metallization (DM) layer in a power electronics device. To enable sufficient cooling, coolant flow channels are formed within the ceramic substrate. The direct metallization layer (typically copper) may be bonded to the ceramic substrate, and semiconductor chips (such as IGBT and diodes) may be soldered or sintered onto the direct metallization layer to form a power electronics module. Multiple modules may be attached to cooling headers that provide in-flow and out-flow of coolant through the channels in the ceramic substrate. The modules and cooling header assembly are preferably sized to fit inside the core of a toroidal shaped capacitor.

Wiles, Randy H [Powell, TN; Wereszczak, Andrew A [Oak Ridge, TN; Ayers, Curtis W. (Kingston, TN) [Kingston, TN; Lowe, Kirk T. (Knoxville, TN) [Knoxville, TN

2010-09-14T23:59:59.000Z

423

Radiotracers currently produced at Brookhaven  

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

Radiotracers currently produced at Brookhaven. Note that other radiotracers that are described in the literature can Radiotracers currently produced at Brookhaven. Note that other radiotracers that are described in the literature can also be transferred to our laboratory. Molecular Target/use Radiotracer Name Structure Chemical Name Hexokinase/glucose metabolism, cancer, brain function 18 FDG 2-deoxy-2-[ 18 F]fluoro-D-glucose Dopamine D2/D3 receptors/addiction, psychiatric disorders [ 11 C]raclopride 3,5-dichloro-N-{[(2S)-1-ethylpyrrolidin- 2-yl]methyl}-2-hydroxy-6- [ 11 C]methoxybenzamide Dopamine transporters / cocaine pharmacokinetics, addiction, neurological disorders [ 11 C]cocaine methyl (1R,2R,3S,5S)-3-s(benzoyloxy)- 8-[ 11 C]methyl-8-azabicyclo[3.2.1] octane-2-carboxylate Blood flow/nicotine pharmacokinetics [ 11 C]nicotine 3-[(2S)-1-[ 11 C]methylpyrrolidin-2-

424

The Universe Adventure - Current Research  

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

Current Research Current Research When launched, the Supernova Acceleration Probe (SNAP) will study the effects of dark energy by surveying distant type Ia supernovae and making detailed measurements of weak gravitational lensing. With the new Large Hadron Collider (LHC) at CERN nearing full completion, experimentalists will soon be able to test certain elements of String Theory. While not definitive, these tests will cast some light upon the theory's parameters and may even provide clues into the identity of dark matter. Meanwhile, theorists continue to investigate the implications of String Theory for Big Bang cosmology, particularly the effects of strings on cosmic inflation. As particle physicists eagerly await the results from the new LHC, observational cosmologists are busy developing astronomical experiments,

425

Current | OpenEI Community  

Open Energy Info (EERE)

351 351 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142233351 Varnish cache server Current Home Ocop's picture Submitted by Ocop(5) Member 18 April, 2013 - 13:41 MHK LCOE Reporting Guidance Draft Cost Current DOE LCOE numerical modeling Performance Tidal Wave To normalize competing claims of LCOE, DOE has developed-for its own use-a standardized cost and performance data reporting process to facilitate uniform calculation of LCOE from MHK device developers. This standardization framework is only the first version in what is anticipated

426

Currents on MDT end plugs  

E-Print Network [OSTI]

A sample of MDT tubes was irradiated in the CERN X5 facility to study their aging behaviour. Part of these tubes were subjected to a glow discharge cleaning (sputtering) with reversed high voltage up to 1660 mC/cm. Current and Ohmic resistance measurements on these tubes gave the same null result as for non-irradiated tubes. The inner plastic surface of one end plug was analysed through the XPS technique. No traces of aluminium were found.

Paschhoff, V

1998-01-01T23:59:59.000Z

427

ccsd00003303, Dark Matter Direct Detection using Cryogenic  

E-Print Network [OSTI]

ccsd­00003303, version 1 ­ 17 Nov 2004 Dark Matter Direct Detection using Cryogenic Detectors cryogenic experiments currently provide the best sensitivity, by nearly one order of magnitude, to WIMP of cryogenic exper- iments promises two orders of magnitude increase in sensitivity over the next few years

428

DIRECT NUMERICAL SIMULATION OF HOT AND HIGHLY PULSATED  

E-Print Network [OSTI]

. We focus here on situations where plasma jets are randomly forced by an electric arc resulting pulsated jet flows at 12 000 K developing in a colder environment. Such flows are used to model plasma jets generated by direct current plasma torch. Plasma spraying is used to deposit thick coatings on a substrate

Sart, Remi

429

Current status of Japanese detectors  

E-Print Network [OSTI]

Current status of TAMA and CLIO detectors in Japan is reported in this article. These two interferometric gravitational-wave detectors are being developed for the large cryogenic gravitational wave telescope (LCGT) which is a future plan for detecting gravitational wave signals at least once per year. TAMA300 is being upgraded to improve the sensitivity in low frequency region after the last observation experiment in 2004. To reduce the seismic noises, we are installing new seismic isolation system, which is called TAMA Seismic Attenuation System, for the four test masses. We confirmed stable mass locks of a cavity and improvements of length and angular fluctuations by using two SASs. We are currently optimizing the performance of the third and fourth SASs. We continue TAMA300 operation and R&D studies for LCGT. Next data taking in the summer of 2007 is planned. CLIO is a 100-m baseline length prototype detector for LCGT to investigate interferometer performance in cryogenic condition. The key features of CLIO are that it locates Kamioka underground site for low seismic noise level, and adopts cryogenic Sapphire mirrors for low thermal noise level. The first operation of the cryogenic interferometer was successfully demonstrated in February of 2006. Current sensitivity at room temperature is close to the target sensitivity within a factor of 4. Several observation experiments at room temperature have been done. Once the displacement noise reaches at thermal noise level of room temperature, its improvement by cooling test mass mirrors should be demonstrated.

Daisuke Tatsumi; Ryutaro Takahashi; Koji Arai; Noriyasu Nakagawa; Kazuhiro Agatsuma; Toshitaka Yamazaki; Mitsuhiro Fukushima; Masa-Katsu Fujimoto; Akiteru Takamori; Alessandro Bertolini; Virginio Sannibale; Riccardo DeSalvo; Szabolcs Marka; Masaki Ando; Kimio Tsubono; Tomomi Akutsu; Kazuhiro Yamamoto; Hideki Ishitsuka; Takashi Uchiyama; Shinji Miyoki; Masatake Ohashi; Kazuaki Kuroda; Norichika Awaya; Nobuyuki Kanda; Akito Araya; Souichi Telada; Takayuki Tomaru; Tomiyoshi Haruyama; Akira Yamamoto; Nobuaki Sato; Toshitaka Suzuki; Takakazu Shintomi

2007-04-22T23:59:59.000Z

430

Office of Nuclear Safety - Directives  

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

Nuclear and Facility Safety Directives Nuclear and Facility Safety Directives The HSS Office of Nuclear Safety is the responsible office for the development, interpretation, and revision of the following Department of Energy (DOE) directives. Go to DOE's Directives Web Page to view these directives. DOE Order (O) 252.1A, Technical Standards Program DOE O 252.1A promotes DOE's use of Voluntary Consensus Standards (VCS) as the primary method for application of technical standards and establishes and manages the DOE Technical Standards Program (TSP) including technical standards development, information, activities, issues, and interactions. HS-30 Contact: Jeff Feit DOE Policy (P) 420.1, Department of Energy Nuclear Safety Policy DOE P 420.1, documents the Department's nuclear safety policy to design, construct, operate, and decommission its nuclear facilities in a manner that ensures adequate protection of workers, the public, and the environment.

431

DOE Directives | Department of Energy  

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

DOE Directives DOE Directives DOE Directives Directives are the Department of Energy's primary means to communicate and institutionalize directives and policies and to establish requirements, responsibilities, and procedures for Departmental elements and contractors. DOE O 413.3A - Program and Project Management for the Acquisition of Capital Assets DOE G 413.3-1 - Managing Design and Construction Using Systems Engineering for Use with DOE O 413.3A DOE G 413.3-2 - Quality Assurance Guide for Project Management DOE G 413.3-3 - Safeguards and Security for Program and Project Management DOE G 413.3-8 - Environmental Management (EM) Cleanup Projects DOE G 413.3-9 - U.S. Department of Energy Project Review Guide for Capital Asset Projects DOE G 413.3-10 - Earned Value Management System (EVMS)

432

Magnetorotational instability, current relaxation, and current-vortex sheet  

SciTech Connect (OSTI)

The conjugate effect of current relaxation and of current-vortex sheet formation on the magnetorotational instability is explored in a conducting fluid. It is found that the relative amplification of the magnetic viscosity from marginal stability to the instability determined by the maximum growth rate is around 924% when resistive effects dominate, while the corresponding quantity is around 220% in the ideal limit. This shows that the conjugate influence is much more efficient to amplify the magnetic viscosity than just the effect due to the standard magnetic tension. It is also found that the magnitude of the magnetic viscosity is effectively enhanced by the conjugate influence. The results presented here may contribute to the understanding of the various processes that play a significant role in the mechanism of anomalous viscosity observed in Keplerian disks. It is argued that the new effect shall be relevant in thin accretion disks. It is also mentioned that the proposed formulation may be of interest for some theories of magnetic reconnection. Possible extensions of this work are suggested.

Silveira, F. E. M. [Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Santa Adélia, 166, CEP 09210-170, Bairro Bangu, Santo André, SP (Brazil)] [Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Santa Adélia, 166, CEP 09210-170, Bairro Bangu, Santo André, SP (Brazil); Galvão, R. M. O. [Instituto de Física, Universidade de São Paulo, Rua do Matão, Travessa R, 187, CEP 05508-090, Cidade Universitária, São Paulo, SP (Brazil)] [Instituto de Física, Universidade de São Paulo, Rua do Matão, Travessa R, 187, CEP 05508-090, Cidade Universitária, São Paulo, SP (Brazil)

2013-08-15T23:59:59.000Z

433

Ocean currents help explain population genetic structure  

Science Journals Connector (OSTI)

...original work is properly cited. Ocean currents help explain population genetic...larval dispersal estimates based on ocean current observations, we demonstrate...Data-assimilated models of ocean currents for the study region were produced...

2010-01-01T23:59:59.000Z

434

Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction  

SciTech Connect (OSTI)

We theoretically study the current-phase relation in semiconductor nanowire Josephson junction in the presence of spin-orbit interaction. In the nanowire, the impurity scattering with strong SO interaction is taken into account using the random matrix theory. In the absence of magnetic field, the Josephson current I and phase difference ? between the superconductors satisfy the relation of I(?) = –I(–?). In the presence of magnetic field along the nanowire, the interplay between the SO interaction and Zeeman effect breaks the current-phase relation of I(?) = –I(–?). In this case, we show that the critical current depends on the current direction, which qualitatively agrees with recent experimental findings.

Yokoyama, Tomohiro; Eto, Mikio [Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 (Japan); Nazarov, Yuli V. [Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands (Netherlands)

2013-12-04T23:59:59.000Z

435

Analysis of tidal current observations over the northeastern shelf of the Gulf of Mexico  

E-Print Network [OSTI]

of the controlling fac- tors of the currents in this area, mainly the wind and the tide (Boston, 1964), have been studied only briefly. This thesis is concerned with (a) the task of obtaining direct field measurements of the current by employing a taut-line buoy...

Durham, Donald L

1967-01-01T23:59:59.000Z

436

Current guidelines produce competent endovascular surgeons  

Science Journals Connector (OSTI)

Objective This study was conducted to evaluate the safety of percutaneous endovascular procedures (PEPs) during integration of endovascular skills into an urban academic vascular surgery practice and assess the hypothesis that currently accepted guidelines are a valid benchmark for endovascular competency. Methods From 2000 through 2004, an endovascular training paradigm was instituted to integrate endovascular procedures into an academic endovascular practice. The paradigm involved individual mentoring of vascular surgery faculty by a partner with mature endovascular skills. Mentoring continued until each surgeon achieved a procedural experience of 100 diagnostic angiograms and 50 percutaneous endovascular interventions. Once achieved, privileges were granted for independent endovascular practice. To assess the effectiveness of the training process and competency of the newly trained endovascular practitioner, the surgeon-specific 30-day incidence of major complications and deaths for all \\{PEPs\\} performed during and after the mentoring process was determined. Complications and deaths were assigned to the mentor during the training process and to the individual surgeon once endovascular privileges were granted. Complications were classified as local vascular, local nonvascular, or systemic/remote. Results From 2000 through 2004, 1208 \\{PEPs\\} were performed. During this time, three faculty surgeons achieved sufficient endovascular procedural experience and were granted endovascular privileges. Major complications consisted of 17 local vascular, three local nonvascular, and four systemic/remote. Three deaths occurred. Renal percutaneous transluminal angioplasty/stent procedures had the highest complication and death rate at 9%. The major complication and death rate per year was 1.8% to 4.9% (P = .32) and did not significantly vary. The major complication and death rate for all 1208 \\{PEPs\\} was 2.2%. The surgeon-specific complication and death rate was 1.9% to 3.6% (P = .14) and did not vary between surgeons. Conclusion Endovascular skills can be safely transferred using a vascular surgeon-based training paradigm. When the training paradigm is directed at satisfying currently recommended guidelines for endovascular privileging, competent endovascular surgeons are the result.

Fred A. Weaver; Douglas B. Hood; Haimesh Shah; Jason Alexander; Steven Katz; Vincent Rowe; Albert E. Yellin

2006-01-01T23:59:59.000Z

437

Electrolytic/fuel cell bundles and systems including a current collector in communication with an electrode thereof  

DOE Patents [OSTI]

Electrolytic/fuel cell bundles and systems including such bundles include an electrically conductive current collector in communication with an anode or a cathode of each of a plurality of cells. A cross-sectional area of the current collector may vary in a direction generally parallel to a general direction of current flow through the current collector. The current collector may include a porous monolithic structure. At least one cell of the plurality of cells may include a current collector that surrounds an outer electrode of the cell and has at least six substantially planar exterior surfaces. The planar surfaces may extend along a length of the cell, and may abut against a substantially planar surface of a current collector of an adjacent cell. Methods for generating electricity and for performing electrolysis include flowing current through a conductive current collector having a varying cross-sectional area.

Hawkes, Grant L.; Herring, James S.; Stoots, Carl M.; O'Brien, James E.

2013-03-05T23:59:59.000Z

438

Summary of Superconducting Fault Current Limiter Technology  

Science Journals Connector (OSTI)

In recent years, superconducting fault current limiter (SFCL) has become one of the forefront topics of current-limiting technology in the world. In this...

Linmang Wang; Pengzan Jiang; Dada Wang

2012-01-01T23:59:59.000Z

439

Fuel Cells - Current Technology | Department of Energy  

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

Current Technology Fuel Cells - Current Technology Today, fuel cells are being developed to power passenger vehicles, commercial buildings, homes, and even small devices such as...

440

Hydrogen Production - Current Technology | Department of Energy  

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

Current Technology Hydrogen Production - Current Technology The development of clean, sustainable, and cost-competitive hydrogen production processes is key to a viable future...

Note: This page contains sample records for the topic "volt direct current" 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

Natural Currents Energy Group | Open Energy Information  

Open Energy Info (EERE)

Natural Currents Energy Group Jump to: navigation, search Name: Natural Currents Energy Group Place: New York Sector: Hydro, Ocean, Renewable Energy, Solar, Wind energy Product:...

442

Module bay with directed flow  

DOE Patents [OSTI]

A module bay requires less cleanroom airflow. A shaped gas inlet passage can allow cleanroom air into the module bay with flow velocity preferentially directed toward contaminant rich portions of a processing module in the module bay. Preferential gas flow direction can more efficiently purge contaminants from appropriate portions of the module bay, allowing a reduced cleanroom air flow rate for contaminant removal. A shelf extending from an air inlet slit in one wall of a module bay can direct air flowing therethrough toward contaminant-rich portions of the module bay, such as a junction between a lid and base of a processing module.

Torczynski, John R. (Albuquerque, NM)

2001-02-27T23:59:59.000Z

443

Critical current of a lateral Josephson junction for layered superconductors  

Science Journals Connector (OSTI)

We have studied the effect of an applied magnetic field Hext on the critical current Ic of a lateral superconducting-insulating-superconducting (S-I-S) Josephson junction between two layered superconductors. In this configuration the layering direction of the superconducting electrodes is parallel to the plane of the junction. We find that the behavior of Ic(Hext) is determined by the parameter ?=jcd0/??j?, where ?? and j? are, respectively, the penetration depth and the interlayer critical current characterizing the bulk superconductors. Also jc is the critical current density between layers on opposite sides of the junction, while d0 is the layer thickness. For ??1 the length scale for field penetration along the direction of the junction is given by ??, leading to the usual Fraunhofer dependence for Ic(Hext). The scenario is vastly different for ??1. In this case the intraelectrode layer couplings are relatively weak and Josephson vortex penetration is found to occur between the layers. The physics of this situation is determined by the standard map. We find that in the absence of an external field Josephson vortices penetrate the structure and form an ordered array. This leads to a value of Ic(0) proportional to the number of layers N. This situation is however upset by a small external field. In this case the vortex distribution acquires an interesting chaotic character which leads to a sizable decrease of the critical current to a value Ic(Hext)? ?N .

Mikhail V. Fistul’ and Gabriele F. Giuliani

1994-09-01T23:59:59.000Z

444

CURRENT SHEETS FORMATION IN TANGLED CORONAL MAGNETIC FIELDS  

SciTech Connect (OSTI)

We investigate the dynamical evolution of magnetic fields in closed regions of solar and stellar coronae. To understand under which conditions current sheets form, we examine dissipative and ideal reduced magnetohydrodynamic models in Cartesian geometry, where two magnetic field components are present: the strong guide field B{sub 0}, extended along the axial direction, and the dynamical orthogonal field b. Magnetic field lines thread the system along the axial direction that spans the length L and are line-tied at the top and bottom plates. The magnetic field b initially has only large scales, with its gradient (current) length scale of the order of l{sub b}. We identify the magnetic intensity threshold b/B{sub 0} {approx} l{sub b}/L. For values of b below this threshold, field-line tension inhibits the formation of current sheets, while above the threshold they form quickly on fast ideal timescales. In the ideal case, above the magnetic threshold, we show that current sheets thickness decreases in time until it becomes smaller than the grid resolution, with the analyticity strip width {delta} decreasing at least exponentially, after which the simulations become underresolved.

Rappazzo, A. F. [Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716 (United States); Parker, E. N., E-mail: franco.rappazzo@gmail.com, E-mail: parker@oddjob.uchicago.edu [Enrico Fermi Institute, University of Chicago, Chicago, IL 60637 (United States)

2013-08-10T23:59:59.000Z

445

System and method for generating current by selective electron heating  

DOE Patents [OSTI]

A system for the generation of toroidal current in a plasma which is prepared in a toroidal magnetic field. The system utilizes the injection of high-frequency waves into the plasma by means of waveguides. The wave frequency and polarization are chosen such that when the waveguides are tilted in a predetermined fashion, the wave energy is absorbed preferentially by electrons traveling in one toroidal direction. The absorption of energy in this manner produces a toroidal electric current even when the injected waves themselves do not have substantial toroidal momentum. This current can be continuously maintained at modest cost in power and may be used to confine the plasma. The system can operate efficiently on fusion grade tokamak plasmas.

Fisch, Nathaniel J. (Princeton, NJ); Boozer, Allen H. (Rocky Hill, NJ)

1984-01-01T23:59:59.000Z

446

Homeland Security Presidential Directive 7  

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

3 Homeland Security Presidential Directive/Hspd-7 3 Homeland Security Presidential Directive/Hspd-7 For Immediate Release Office of the Press Secretary December 17, 2003 December 17, 2003 Homeland Security Presidential Directive/Hspd-7 Subject: Critical Infrastructure Identification, Prioritization, and Protection Purpose (1) This directive establishes a national policy for Federal departments and agencies to identify and prioritize United States critical infrastructure and key resources and to protect them from terrorist attacks. Background (2) Terrorists seek to destroy, incapacitate, or exploit critical infrastructure and key resources across the United States to threaten national security, cause mass casualties, weaken our economy, and damage public morale and confidence. (3) America's open and technologically complex society includes a wide array of critical infrastructure

447

Sunlight Direct | Open Energy Information  

Open Energy Info (EERE)

Direct Direct Jump to: navigation, search Name Sunlight Direct Place San Diego, California Zip 92128 Sector Solar Product Developed a system that tracks and concentrates solar energy for distributed power generation Website http://www.sunlight-direct.com Coordinates 33.0013938°, -117.0735241° 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":33.0013938,"lon":-117.0735241,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

448

Testable dark energy predictions from current data  

Science Journals Connector (OSTI)

Given a class of dark energy models, constraints from one set of cosmic acceleration observables make predictions for other observables. Here we present the allowed ranges for the expansion rate H(z), distances D(z), and the linear growth function G(z) (as well as other, derived growth observables) from the current combination of cosmological measurements of supernovae, the cosmic microwave background, baryon acoustic oscillations, and the Hubble constant. With a cosmological constant as the dark energy and assuming near-minimal neutrino masses, the growth function is already predicted to better than 2% precision at any redshift, with or without spatial curvature. Direct measurements of growth that match this precision offer the opportunity to stringently test and potentially rule out a cosmological constant. While predictions in the broader class of quintessence models are weaker, it is remarkable that they are typically only a factor of 2–3 less precise than forecasted predictions for future space-based supernovae and Planck CMB measurements. In particular, measurements of growth at any redshift, or the Hubble constant H0, that exceed ?CDM predictions by substantially more than 2% would rule out not only a cosmological constant but also the whole quintessence class, with or without curvature and early dark energy. Barring additional systematic errors hiding in the data, such a discovery would require more exotic explanations of cosmic acceleration such as phantom dark energy, dark energy clustering, or modifications of gravity.

Michael J. Mortonson; Wayne Hu; Dragan Huterer

2010-03-22T23:59:59.000Z

449

Testable dark energy predictions from current data  

SciTech Connect (OSTI)

Given a class of dark energy models, constraints from one set of cosmic acceleration observables make predictions for other observables. Here we present the allowed ranges for the expansion rate H(z), distances D(z), and the linear growth function G(z) (as well as other, derived growth observables) from the current combination of cosmological measurements of supernovae, the cosmic microwave background, baryon acoustic oscillations, and the Hubble constant. With a cosmological constant as the dark energy and assuming near-minimal neutrino masses, the growth function is already predicted to better than 2% precision at any redshift, with or without spatial curvature. Direct measurements of growth that match this precision offer the opportunity to stringently test and potentially rule out a cosmological constant. While predictions in the broader class of quintessence models are weaker, it is remarkable that they are typically only a factor of 2-3 less precise than forecasted predictions for future space-based supernovae and Planck CMB measurements. In particular, measurements of growth at any redshift, or the Hubble constant H{sub 0}, that exceed {Lambda}CDM predictions by substantially more than 2% would rule out not only a cosmological constant but also the whole quintessence class, with or without curvature and early dark energy. Barring additional systematic errors hiding in the data, such a discovery would require more exotic explanations of cosmic acceleration such as phantom dark energy, dark energy clustering, or modifications of gravity.

Mortonson, Michael J. [Center for Cosmology and AstroParticle Physics, Ohio State University, Columbus, Ohio 43210 (United States); Department of Physics, University of Chicago, Chicago, Illinois 60637 (United States); Kavli Institute for Cosmological Physics and Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States); Hu, Wayne [Kavli Institute for Cosmological Physics and Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States); Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637 (United States); Huterer, Dragan [Department of Physics, University of Michigan, 450 Church St, Ann Arbor, Michigan 48109-1040 (United States)

2010-03-15T23:59:59.000Z

450

Gaseous Hydrogen Delivery Breakout - Strategic Directions for...  

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

Gaseous Hydrogen Delivery Breakout - Strategic Directions for Hydrogen Delivery Workshop Gaseous Hydrogen Delivery Breakout - Strategic Directions for Hydrogen Delivery Workshop...

451

Directions to the APS User Office | Advanced Photon Source  

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

Directions to the APS User Office Directions to the APS User Office New users must go directly to the User Office when they arrive for their first visit. Current users who have any change in affiliation, visa status, etc., should also check in with the User Office to update their files. From the Argonne Main Gate: Ask for a map at the Main Gate or the Argonne Information Center when you arrive. Follow the signs to the Argonne Guest House. From the Guest House, Building 401 is visible about 0.3 miles (0.5 km) to the southeast. Enter Building 401 by the main steps. In the atrium of Building 401, turn to the left and look for the signs directing you to the User Office (on the first floor). Hours The User Office is open 8:30 a.m. to 5:00 p.m. Monday-Friday (other times by arrangement in exceptional circumstances).

452

Direct laser acceleration of electrons in free-space  

E-Print Network [OSTI]

Compact laser-driven accelerators are versatile and powerful tools of unarguable relevance on societal grounds for the diverse purposes of science, health, security, and technology because they bring enormous practicality to state-of-the-art achievements of conventional radio-frequency accelerators. Current benchmarking laser-based technologies rely on a medium to assist the light-matter interaction, which impose material limitations or strongly inhomogeneous fields. The advent of few cycle ultra-intense radially polarized lasers has materialized an extensively studied novel accelerator that adopts the simplest form of laser acceleration and is unique in requiring no medium to achieve strong longitudinal energy transfer directly from laser to particle. Here we present the first observation of direct longitudinal laser acceleration of non-relativistic electrons that undergo highly-directional multi-GeV/m accelerating gradients. This demonstration opens a new frontier for direct laser-driven particle accelerati...

Carbajo, Sergio; Wong, Liang Jie; Miller, R J Dwayne; Kärtner, Franz X

2015-01-01T23:59:59.000Z

453

First direct observation of muon antineutrino disappearance  

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

This letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ??? production, accumulating an exposure of 1.71 x 1020 protons on target. In the Far Detector, 97 charged current ??? events are observed. The no-oscillation hypothesis predicts 156 events and is excluded at 6.3?. The best fit to oscillation yields |?m?2| = (3.36-0.40 +0.46(stat.) ± 0.06(syst.)) x 10-3 eV2, sin2(2 ??) = 0.86-0.12+0.11 (stat.) ± 0.01(syst.). The MINOS ?? and ??? measurements are consistent at the 2.0% confidence level, assuming identical underlying oscillation parameters.

Adamson, P [Fermilab; Andreopoulos, C [Rutherford; Auty, D J [Sussex U.; Ayres, D S [Argonne; Backhouse, C [Oxford U.; Barr, G [Oxford U.; Bishai, M [Brookhaven; Blake, A [Cambridge U.; Bock, G J [Fermilab; Boehnlein, D J [/Fermilab; Bogert, D [Fermilab; Harvard U., Phys. Dept.

2011-07-05T23:59:59.000Z

454

CURRENT AND FUTURE IGCC TECHNOLOGIES:  

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

16, 2008 16, 2008 DOE/NETL-2008/1337 A Pathway Study Focused on Non-Carbon Capture Advanced Power Systems R&D Using Bituminous Coal - Volume 1 Current and Future IGCC Technologies Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or

455

Rotating concave eddy current probe  

DOE Patents [OSTI]

A rotating concave eddy current probe for detecting fatigue cracks hidden from view underneath the head of a raised head fastener, such as a buttonhead-type rivet, used to join together structural skins, such as aluminum aircraft skins. The probe has a recessed concave dimple in its bottom surface that closely conforms to the shape of the raised head. The concave dimple holds the probe in good alignment on top of the rivet while the probe is rotated around the rivet's centerline. One or more magnetic coils are rigidly embedded within the probe's cylindrical body, which is made of a non-conducting material. This design overcomes the inspection impediment associated with widely varying conductivity in fastened joints.

Roach, Dennis P. (Albuquerque, NM); Walkington, Phil (Albuquerque, NM); Rackow, Kirk A. (Albuquerque, NM); Hohman, Ed (Albuquerque, NM)

2008-04-01T23:59:59.000Z

456

The conditions for the existence of the electric field opposite to the current along the magnetic field lines in the thin plasma  

Science Journals Connector (OSTI)

The flow of the current along the magnetic field lines in the thin plasma directed opposite to the electric field is considered. The particles moving to the ... current density which are typical for the auroral field

M. V. Samokhin

457

Building Technologies Office: Current Rulemakings and Notices  

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

Rulemakings and Rulemakings and Notices to someone by E-mail Share Building Technologies Office: Current Rulemakings and Notices on Facebook Tweet about Building Technologies Office: Current Rulemakings and Notices on Twitter Bookmark Building Technologies Office: Current Rulemakings and Notices on Google Bookmark Building Technologies Office: Current Rulemakings and Notices on Delicious Rank Building Technologies Office: Current Rulemakings and Notices on Digg Find More places to share Building Technologies Office: Current Rulemakings and Notices on AddThis.com... About Standards & Test Procedures Implementation, Certification & Enforcement Rulemakings & Notices Current Rulemakings & Notices Test Procedure Waivers Recent Federal Register Notices How to Participate or Comment

458

Building Technologies Office: Current Test Procedure Waivers  

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

Test Procedure Test Procedure Waivers to someone by E-mail Share Building Technologies Office: Current Test Procedure Waivers on Facebook Tweet about Building Technologies Office: Current Test Procedure Waivers on Twitter Bookmark Building Technologies Office: Current Test Procedure Waivers on Google Bookmark Building Technologies Office: Current Test Procedure Waivers on Delicious Rank Building Technologies Office: Current Test Procedure Waivers on Digg Find More places to share Building Technologies Office: Current Test Procedure Waivers on AddThis.com... About Standards & Test Procedures Implementation, Certification & Enforcement Rulemakings & Notices Current Rulemakings & Notices Test Procedure Waivers Recent Federal Register Notices How to Participate or Comment

459

Engineered nanomaterials: knowledge gaps in fate, exposure, toxicity, and future directions  

Science Journals Connector (OSTI)

The aim of this study is to identify current knowledge gaps in fate, exposure, and toxicity of engineered nanomaterials (ENMs), highlight research gaps, and suggest future research directions. Humans and other living organisms are exposed to ENMs during ...

Arun Kumar, Prashant Kumar, Ananthitha Anandan, Teresa F. Fernandes, Godwin A. Ayoko, George Biskos

2014-01-01T23:59:59.000Z

460

E-Print Network 3.0 - anodal transcranial direct Sample Search...  

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

111:796806, 2009 796 J Neurosurg Volume 111 October 2009 Summary: of rTMS over the Trains of transcranial direct current stimulation antagonize motor cortex... of anodal tran-...

Note: This page contains sample records for the topic "volt direct current" 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

Using Direct-DC Power Distribution in U.S. Residential Buildings Can Save  

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

Using Direct-DC Power Distribution in U.S. Residential Buildings Can Save Using Direct-DC Power Distribution in U.S. Residential Buildings Can Save Energy October 2013 October-November Special Focus: Energy Efficiency, Buildings and the Electric Grid An increasing fraction of the most efficient appliances on the market operate on direct current (DC) internally, making it possible to use DC from renewable energy systems directly and avoid the losses inherent in converting power to alternating current (AC) and back, as is current practice. Products are also emerging on the commercial market that take advantage of that possibility. Lawrence Berkeley National Laboratory researchers Vagelis Vossos, Karina Garbesi, and Hongxia Shen investigated the potential savings of direct-DC power distribution in net-metered residences with on-site photovoltaics

462

The status of neutral currents  

SciTech Connect (OSTI)

The situation of particle physics today is quite puzzling. On the one hand, the Standard Model (SM) of strong and electroweak interactions is consistent with all confirmed experimental data but theoretically rather unsatisfactory. On the other hand, none of the many theoretical speculations which try to go beyond the SM has (yet) received the slightest experimental support. The solution to this dilemma can only come from new data: either from the detection of a new particle threshold at high energy colliders, or from the appearance of some small discrepancy in high-precision experiments. A crucial sector for testing the SM and its extensions is that of neutral currents (NC), where an impressive amount of data has been collected in recent years. While waiting for the next generation of experiments, it is certainly useful to take stock of our knowledge, determining the NC parameters as precisely as we can and putting limits on possible deviations from the SM. The present talk contains the results of a recent analysis along these lines: the first part illustrates how a set of 'model-independent' parameters can be extracted from the available NC data, the second part particularizes the analysis to the SM and to some superstring-inspired models with an additional Z' in their low-energy spectrum. 27 refs., 3 figs., 1 tab.

Zwirner, F.

1987-11-01T23:59:59.000Z

463

Solid-State Lighting: Current Opportunities  

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

Financial Financial Opportunities Printable Version Share this resource Send a link to Solid-State Lighting: Current Opportunities to someone by E-mail Share Solid-State Lighting: Current Opportunities on Facebook Tweet about Solid-State Lighting: Current Opportunities on Twitter Bookmark Solid-State Lighting: Current Opportunities on Google Bookmark Solid-State Lighting: Current Opportunities on Delicious Rank Solid-State Lighting: Current Opportunities on Digg Find More places to share Solid-State Lighting: Current Opportunities on AddThis.com... Current Opportunities DOE Selections Related Opportunities Current Opportunities DE-FOA-0000973: Solid-State Lighting Advanced Technology R&D - 2014 DE-FOA-0001046: FY14 SBIR/STTR Phase I, Release 2 Contacts | Web Site Policies | U.S. Department of Energy | USA.gov

464

Modeling of current characteristics of segmented Langmuir probe on DEMETER  

SciTech Connect (OSTI)

We model the current characteristics of the DEMETER Segmented Langmuir probe (SLP). The probe is used to measure electron density and temperature in the ionosphere at an altitude of approximately 700 km. It is also used to measure the plasma flow velocity in the satellite frame of reference. The probe is partitioned into seven collectors: six electrically insulated spherical segments and a guard electrode (the rest of the sphere and the small post). Comparisons are made between the predictions of the model and DEMETER measurements for actual ionospheric plasma conditions encountered along the satellite orbit. Segment characteristics are computed numerically with PTetra, a three-dimensional particle in cell simulation code. In PTetra, space is discretized with an unstructured tetrahedral mesh, thus, enabling a good representation of the probe geometry. The model also accounts for several physical effects of importance in the interaction of spacecraft with the space environment. These include satellite charging, photoelectron, and secondary electron emissions. The model is electrostatic, but it accounts for the presence of a uniform background magnetic field. PTetra simulation results show different characteristics for the different probe segments. The current collected by each segment depends on its orientation with respect to the ram direction, the plasma composition, the magnitude, and the orientation of the magnetic field. It is observed that the presence of light H{sup +} ions leads to a significant increase in the ion current branch of the I-V curves of the negatively polarized SLP. The effect of the magnetic field is demonstrated by varying its magnitude and direction with respect to the reference magnetic field. It is found that the magnetic field appreciably affects the electron current branch of the I-V curves of certain segments on the SLP, whereas the ion current branch remains almost unaffected. PTetra simulations are validated by comparing the computed characteristics and their angular anisotropy with the DEMETER measurements, as simulation results are found to be in good agreement with the measurements.

Imtiaz, Nadia; Marchand, Richard [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1 (Canada)] [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1 (Canada); Lebreton, Jean-Pierre [Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), CNRS-Université d'Orléans, Orléans Cedex (France)] [Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), CNRS-Université d'Orléans, Orléans Cedex (France)

2013-05-15T23:59:59.000Z

465

The AISI direct steelmaking program  

SciTech Connect (OSTI)

After six months of operation of the pilot plant, the viability of in-bath smelting combined with a high level of post combustion has been demonstrated, and the opportunity exists for an early commercialization of the direct ironmaking part of the process while we continue to research direct steelmaking. The program should be of equal interest to integrated and electric furnace producers. Smelting of ore provides virgin iron units. Additionally, the process has the flexibility of melting scrap and varying the ore-to-scrap ratio over wide ranges. This process does not require coke, thus eliminating the cokemaking operation, a major source of environmental concern.

Aukrust, E. (LTV Steel Co., Inc., Cleveland, OH (United States)); Downing, K.B. (Inland Steel Flat Products Co. (United States))

1991-01-01T23:59:59.000Z

466

Fast Generators of Direct Photons  

E-Print Network [OSTI]

Three fast generators of direct photons in the central rapidity region of high-energy heavy-ion collisions have been presented The generator of prompt photons is based on a tabulation of $p+p(\\bar p)$ data and binary scaling. Two generators of thermal direct photons, for hot hadron gas (HHG) and quark-gluon plasma (QGP) scenarios, assume the 1+1 Bjorken hydrodynamics. SPS and RHIC data can be fitted better by scenario with QGP. Predictions for the LHC energy have been made. The generators have been realized as macros for the ROOT analysis package.

S. M. Kiselev

2008-11-17T23:59:59.000Z

467

Directed lines in sparse potentials  

Science Journals Connector (OSTI)

We present a continuum formulation of a (d+1)-dimensional directed line interacting with sparse potentials (i.e., d-dimensional potentials defined only at discrete longitudinal locations.) An iterative solution for the partition function is derived. The impulsive influence of the potentials induces discontinuities in the evolution of the probability density P(x,t) of the directed line. The effects of these discontinuities are studied in detail for the simple case of a single defect. We then investigate sparse columnar potentials defined as a periodic array of defects in (2+1) dimensions, and solve exactly for P. A nontrivial binding-unbinding transition is found.

T. J. Newman and A. J. McKane

1997-01-01T23:59:59.000Z

468

Tokamak Equilibria with Reversed Current Density  

Science Journals Connector (OSTI)

Observations of nearly zero toroidal current in the central region of tokamaks (the “current hole”) raises the question of the existence of toroidal equilibria with very low or reversed current in the core. The solutions of the Grad-Shafranov equilibrium equation with hollow toroidal current density profile including negative current density in the plasma center are investigated. Solutions of the corresponding eigenvalue problem provide simple examples of such equilibrium configurations. More realistic equilibria with toroidal current density reversal are computed using a new equilibrium problem formulation and computational algorithm which do not assume nested magnetic surfaces.

A. A. Martynov; S. Yu. Medvedev; L. Villard

2003-08-21T23:59:59.000Z

469

Property:Wave Direction | Open Energy Information  

Open Energy Info (EERE)

Direction Direction Jump to: navigation, search Property Name Wave Direction Property Type String Pages using the property "Wave Direction" Showing 25 pages using this property. (previous 25) (next 25) A Alden Small Flume + Uni-Directional + Alden Wave Basin + Both + C Carderock Maneuvering & Seakeeping Basin + Both + Carderock Tow Tank 2 + Uni-Directional + Carderock Tow Tank 3 + Uni-Directional + Chase Tow Tank + Uni-Directional + Coastal Harbors Modeling Facility + Uni-Directional + Coastal Inlet Model Facility + Uni-Directional + Coastal Structures Modeling Complex + Both + D Davidson Laboratory Tow Tank + Uni-Directional + DeFrees Large Wave Basin + Uni-Directional + DeFrees Small Wave Basin + Uni-Directional + H Haynes Wave Basin + Both +

470

Laser Direct Drive: Scientific Advances,  

E-Print Network [OSTI]

· Simpler targets & physics · Predict Fusion Class Gains (> 140) at lower laser energy (500 kJ - 1 MJ) #12;7 KrF lasers have advantages for fusion energy PHYSICS Deeper UV (248 nm vs 351 for glass): -- Greater · chamber #12;9 Gain for Fusion Energy New Direct Drive Designs: Power plant class gains, much smaller laser

471

Direct from CDC Environmental Health  

E-Print Network [OSTI]

environmental health services (i.e., services involving water quality, air quality, waste management, or vector management plans of water supply systems. The team also works on sustainability evalu ation and sanitationDirect from CDC Environmental Health Services Branch Editor's note: NEHA strives to provide up

472

Bulk Hydrogen Strategic Directions for  

E-Print Network [OSTI]

Bulk Hydrogen Storage Strategic Directions for Hydrogen Delivery Workshop May 7-8, 2003 Crystal City, Virginia #12;Breakout Session - Bulk Hydrogen Storage Main Themes/Caveats Bulk Storage = Anything storage is an economic solution to address supply/demand imbalance #12;Breakout Session - Bulk Hydrogen

473

DOE Directives, Delegations, and Requirements  

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

use of nuclear explosives. 2015-01-29T17:37:07Z News Item NEW - DOE O 422.1 Admin Chg 2, Conduct of Operations https:www.directives.doe.govnewsnew-doe-o-422.1-admin-chg-2 The...

474

Future Directions for Magnetic Sensors  

E-Print Network [OSTI]

Future Directions for Magnetic Sensors: HYBRIDMATERIALS Our goal is to develop the scientific expertise needed to allow modeling and simulation to become the driving force in improving magnetic sensors effectiveness in developing new and improved magnetic sensors. By quantifying the improvement in sensor

475

Definition: Fault Current Limiter | Open Energy Information  

Open Energy Info (EERE)

Limiter Limiter Jump to: navigation, search Dictionary.png Fault Current Limiter A fault current limiter prevents current in an electrical circuit from exceeding a predetermined level by increasing the electrical impedance of that circuit before the current through the circuit exceeds that level. Fault current limiters are designed so as to minimize the impedance of the circuit under normal conditions to reduce losses, but increase the impedance of the circuit under fault conditions to limit fault current.[1] View on Wikipedia Wikipedia Definition A Fault Current Limiter (FCL) is a device which limits the prospective fault current when a fault occurs (e.g. in a power transmission network). The term includes superconducting devices and non-superconducting devices, however some of the more simple non-superconducting devices (such

476

Current DOE and OSHA VPP Sites  

Broader source: Energy.gov [DOE]

Need to know which sites are current DOE-VPP or OSHA VPP Sites? The link, below, will take you to a Voluntary Protection Programs Participant's Association web page where you may search for current...

477

Current drive operation in a tokamak  

Science Journals Connector (OSTI)

Three modes of current drive operation in a tokamak — continuous, cyclic, and rfinitiated-are ... A model design of a saturable iron core tokamak for current drive experiments is also presented.

O. Mitarai; A. Hirose

1985-12-01T23:59:59.000Z

478

Geoengineering Downwelling Ocean Currents: A Cost Assessment  

Science Journals Connector (OSTI)

Downwelling ocean currents carry carbon into the deep ocean (the solubility pump), and play a ... weakening of the NADW is modification of downwelling ocean currents, by an increase in carbon concentration or ......

S. Zhou; P. C. Flynn

2005-07-01T23:59:59.000Z

479

Current Test Procedure Waivers | Department of Energy  

Energy Savers [EERE]

Current Test Procedure Waivers Current Test Procedure Waivers The U.S. Department of Energy's (DOE) regulations for covered products permit a person to seek a waiver, or an interim...

480

Hydrogen Storage - Current Technology | Department of Energy  

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

Current on-board hydrogen storage approaches involve compressed hydrogen gas tanks, liquid hydrogen tanks, cryogenic compressed hydrogen, metal hydrides,...

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


481

Energy Current Correlations For Weakly Anharmonic Lattices  

E-Print Network [OSTI]

We discuss energy current correlations in thermal equilibrium and point out the linkage to the fluctuating Peierls equation.

Herbert Spohn

2007-06-06T23:59:59.000Z

482

WORLD SURFACE CURRENTS FROM SHIP'S DRIFT OBSERVATIONS  

SciTech Connect (OSTI)

Over 4 million observations of ship's drift are on file at the U.S. National Oceanographic Data Centre, in Washington, D. C., representing a vast amount of information on ocean surface currents. The observed drift speeds are dependent on the frequency of occurence of the particular current speeds and the frequency of observation. By comparing frequency of observation with the drift speeds observed it is possible to confirm known current patterns and detect singularities in surface currents.

Duncan, C.P.; Schladow, S.G.

1980-11-01T23:59:59.000Z

483

Characterization of Disruption Halo Currents in the National Spherical Torus Experiment  

SciTech Connect (OSTI)

This paper describes the general characteristics of disruptions halo currents in the National Spherical Torus Experiment [M. Ono, et al. Nuclear Fusion 40, 557 (2000)]. The commonly observed types of vertical motion and resulting halo current patterns are described, and it is shown that plasma discharges developing between components can facilitate halo current flow. The halo current fractions and toroidal peaking factors at various locations in the device are presented. The maximum product of these two metrics for localized halo current measurements is always significantly less than the worst-case expectations from conventional aspect ratio tokamaks (which are typically written in terms of the total halo current). The halo current fraction and impulse is often largest in cases with the fastest plasma current quenches and highest quench rates. The effective duration of the halo current pulse is comparable to or shorter than the plasma current quench time. The largest halo currents have tended to occur in lower ? and lower elongation plasmas. The sign of the poloidal halo current is reversed when the toroidal field direction is reversed.

S.P. Gerhardt, J. Menard, S. Sabbagh and F. Scotti

2012-04-25T23:59:59.000Z

484

Gif Lectures on direct detection of Dark Matter  

E-Print Network [OSTI]

These notes cover some of the topics associated with direct detection of dark matter at an introductory level. The general principles of dark matter search are summarized. The current status of some experiments is described, with an emphasis on bolometric and noble liquid techniques. Plots and illustrations associated to these notes may be found on transparencies presented during the lecture, on the web site of Gif school 2009.

Eric Armengaud

2010-03-11T23:59:59.000Z

485

Future directions and emerging techniques for ISOL systems  

SciTech Connect (OSTI)

The current status and future promise of ISOL systems are discussed, with emphasis on newly conceived experimental capabilities and interests. In addition to studies of nuclear structure using traditional or new on-line approaches, such as on-line nuclear orientation, the possibilities for studies with accelerated radioactive beams that have direct application to basic problems in materials science and astrophysics as well as to nuclear theory are pointed out. 43 refs., 3 figs., 1 tab.

Talbert, W.L. Jr.; Bunker, M.E.

1986-01-01T23:59:59.000Z

486

ACR 891 (?) Ocean Policy: Current Issues seminar  

E-Print Network [OSTI]

ACR 891 (?) Ocean Policy: Current Issues seminar Fall, 2013 (2 cr, + 1 cr optional) Professor of a common pool resource than the world's oceans it can only be the atmosphere. The latter is currently neglected. This seminar is intended to introduce students to some of the current issues in ocean policy

487

Ocean Surface Currents From Geostationary Satellite SST  

E-Print Network [OSTI]

Ocean Surface Currents From Geostationary Satellite SST -We are implementing and evaluating a feature tracking approach to estimate ocean surface currents. - This approach allows us to estimate://cioss.coas.oregonstate.edu/ Ocean surface currents (vectors) derived from SST (background) modeled fields along the west coast of U

Kurapov, Alexander

488

Waves on unsteady currents Merrick C. Haller  

E-Print Network [OSTI]

Waves on unsteady currents Merrick C. Haller School of Civil and Construction Engineering, Oregon 2007; published online 3 December 2007 Models for surface gravity wave propagation in the presence of currents often assume the current field to be quasi-stationary, which implies that the absolute wave

Haller, Merrick

489

Aquantis Ocean Current Turbine Development Project Report  

SciTech Connect (OSTI)

The Aquantis® Current Plane (“C-Plane”) technology developed by Dehlsen Associates, LLC (DA) and Aquantis, Inc. is an ocean current turbine designed to extract kinetic energy from ocean currents. The technology is capable of achieving competitively priced base-load, continuous, and reliable power generation from a source of renewable energy not before possible in this scale or form.

Fleming, Alex J.

2014-08-23T23:59:59.000Z

490

Direct numerical simulation of electrokinetic instability and transition to chaotic motion  

SciTech Connect (OSTI)

A new type of instability—electrokinetic instability—and an unusual transition to chaotic motion near a charge-selective surface (semiselective electric membrane, electrode, or system of micro-/nanochannels) was studied by the numerical integration of the Nernst-Planck-Poisson-Stokes system and a weakly nonlinear analysis near the threshold of instability. A special finite-difference method was used for the space discretization along with a semi-implicit 31/3 -step Runge-Kutta scheme for the integration in time. Two kinds of initial conditions were considered: (a) white-noise initial conditions to mimic “room disturbances” and subsequent natural evolution of the solution, and (b) an artificial monochromatic ion distribution with a fixed wave number to simulate regular wave patterns. The results were studied from the viewpoint of hydrodynamic stability and bifurcation theory. The threshold of electroconvective movement was found by the linear spectral stability theory, the results of which were confirmed by numerical simulation of the entire system. Our weakly nonlinear analysis and numerical integration of the entire system predict possibility of both kinds of bifurcations at the critical point, supercritical and subcritical, depending on the system parameters. The following regimes, which replace each other as the potential drop between the selective surfaces increases, were obtained: one-dimensional steady solution, two-dimensional steady electroconvective vortices (stationary point in a proper phase space), unsteady vortices aperiodically changing their parameters (homoclinic contour), periodic motion (limit cycle), and chaotic motion. The transition to chaotic motion does not include Hopf bifurcation. The numerical resolution of the thin concentration polarization layer showed spike-like charge profiles along the surface, which could be, depending on the regime, either steady or aperiodically coalescent. The numerical investigation confirmed the experimentally observed absence of regular (near-sinusoidal) oscillations for the overlimiting regimes. There is a qualitative agreement of the experimental and the theoretical values of the threshold of instability, the dominant size of the observed coherent structures, and the experimental and theoretical volt–current characteristics.

Demekhin, E. A., E-mail: edemekhi@gmail.com [Laboratory of Micro- and Nanofluidics, Moscow State University, Moscow 119192 (Russian Federation); Department of Computation Mathematics and Computer Science, Kuban State University, Krasnodar 350040 (Russian Federation); Institute of Mechanics, Moscow State University, Moscow 117192 (Russian Federation); Nikitin, N. V. [Institute of Mechanics, Moscow State University, Moscow 117192 (Russian Federation)] [Institute of Mechanics, Moscow State University, Moscow 117192 (Russian Federation); Shelistov, V. S. [Institute of Mechanics, Moscow State University, Moscow 117192 (Russian Federation) [Institute of Mechanics, Moscow State University, Moscow 117192 (Russian Federation); Scientific Research Department, Kuban State University, Krasnodar 350040 (Russian Federation)

2013-12-15T23:59:59.000Z

491

Teaching Direct Marketing and Small Farm Viability: Resources for Instructors - Unit 5, Other Direct Marketing Options  

E-Print Network [OSTI]

topics related to innovative direct marketing opportunities,including direct marketing to restaurants.6 | Unit 5.5 Direct Marketing to Restaurants Resources

Miles, Albie; Brown, Martha

2005-01-01T23:59:59.000Z

492

Microsoft PowerPoint - 4FO-6-Parker-BNL-Direct-Wind-Magnets.pptx  

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

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * presented by Brett Parker, BNL-SMD presented by Brett Parker, BNL-SMD BNL Direct Wind Magnets * BNL Direct Wind Magnets * *In memory of Pat Thompson *In memory of Pat Thompson * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Outline: BNL Direct Wind Magnets * Overview production process and terminology. - Coil Winding, Wrapping, Measurement, and Curing - Planar Patterns versus Serpentine Coils - Multifunction, Multi-Layer Coils and Field Quality * Examples from past and current projects. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Examples from past and current projects. - ILC QD0 R&D Prototype and ATF2 Upgrade Magnets

493

Current Activities in Support of Building Energy Codes  

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

Building Technologies Program buildings.energy.gov Building Technologies Program buildings.energy.gov Current Activities in Support of Building Energy Codes Jeremy Williams Building Technologies Program Energy Efficiency and Renewable Energy U. S. Department of Energy March 2, 2012 2 | Building Technologies Program buildings.energy.gov 2 Purpose Purpose: To provide an update on DOE activities related to the development of proposed code changes and deployment of existing codes: - Goals and direction - Activity updates - Available resources 3 | Building Technologies Program buildings.energy.gov Goals and Direction 3 4 | Building Technologies Program buildings.energy.gov 30% Initiative for Increased Energy Savings * Commercial-Published in 2010 - ANSI/ASHRAE/IESNA Standard 90.1-2010 with savings of

494

Bias current influence on the characteristic of the magnetic-controlled switcher type fault current limiter  

Science Journals Connector (OSTI)

A novel magnetic-controlled switcher type fault current limiter (FCL) for high voltage electric network is presented. The current limiting principle of the FCL and the bias current influence on the characteristic...

Yan-xia Pan ???; Jian-guo Jiang ???

2009-06-01T23:59:59.000Z

495

Submerged electricity generation plane with marine current-driven motors  

DOE Patents [OSTI]

An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.

Dehlsen, James G.P.; Dehlsen, James B.; Fleming, Alexander

2014-07-01T23:59:59.000Z

496

THREE-DIMENSIONAL WAVY HELIOSPHERIC CURRENT SHEET DRIFTS  

SciTech Connect (OSTI)

We present an analytic method to determine the directions of the three-dimensional (3D) heliospheric current sheet (HCS) drift for any tilt angle based on Parker's heliospheric magnetic field and compare it with published two-dimensional and quasi-3D methods. We also present a new approach to determine the magnitude of the 3D HCS drift numerically. Implications of these new methods for the solar modulation of Galactic cosmic rays are considered and compared with results from prior methods reported in the literature. Our results support the concept that HCS drift plays an important role in the solar modulation of cosmic rays.

Pei, C.; Bieber, J. W.; Clem, J. [Department of Physics and Astronomy and Bartol Research Institute, University of Delaware, Newark, DE 19716 (United States); Burger, R. A., E-mail: pei@physics.udel.edu [Centre for Space Research, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom 2520 (South Africa)

2012-01-10T23:59:59.000Z

497

Safety and Security Directives Reform  

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

Reforming a "Mountain" of Policy Reforming a "Mountain" of Policy Beginning with his confirmation hearings in January 2009, Energy Secretary Steven Chu challenged the Department of Energy to take a fresh look at how we conduct business. This challenge provided the opportunity for DOE to put in place the most effective and efficient strategies to accomplish the Department's missions safely and securely. In response to the Secretary's challenge and building on the results of Deputy Secretary Poneman's Safety and Security Reform studies, the Office of Health, Safety and Security (HSS) broadened its directives review activities during 2009. By November 2009 HSS had initiated a disciplined review of all health, safety, and security directives, which included a systematic review of the Department's safety and security regulatory model.

498

wind direction | OpenEI  

Open Energy Info (EERE)

direction direction Dataset Summary Description Freedom Field is a not-for-profit organization formed to facilitate development and commercialization of renewable energy solutions. The organization has installed a variety of renewable energy generating technologies at their facility (located at Rock River Water Reclamation in Rockford, IL), with the intention of serving as a demonstration facility. The facility monitors data (at 5-minute intervals) from a weather station, 12.4 kW of PV panels (56 220-watt panels), a 10kW wind turbine (HAWT), a 1.2 kW wind turbine (VAWT), an absorption cooling system, and biogas burners. Source Freedom Field Date Released July 19th, 2011 (3 years ago) Date Updated Unknown Keywords biogas monitoring data PV radiance solar temperature

499

carbon sequestration via direct injection  

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

SEQUESTRATION VIA DIRECT INJECTION SEQUESTRATION VIA DIRECT INJECTION Howard J. Herzog, Ken Caldeira, and Eric Adams INTRODUCTION The build-up of carbon dioxide (CO 2 ) and other greenhouse gases in the Earth's atmosphere has caused concern about possible global climate change. As a result, international negotiations have produced the Framework Convention on Climate Change (FCCC), completed during the 1992 Earth Summit in Rio de Janeiro. The treaty, which the United States has ratified, calls for the "stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system." The primary greenhouse gas is CO 2 , which is estimated to contribute to over two-thirds of any climate change. The primary source of CO

500

Ultra-wideband directional sampler  

DOE Patents [OSTI]

The Ultra-Wideband (UWB) Directional Sampler is a four port device that combines the function of a directional coupler with a high speed sampler. Two of the four ports operate at a high sub-nanosecond speed, in "real time", and the other two ports operate at a slow millisecond-speed, in "equivalent time". A signal flowing inbound to either of the high speed ports is sampled and coupled, in equivalent time, to the adjacent equivalent time port while being isolated from the opposite equivalent time port. A primary application is for a time domain reflectometry (TDR) situation where the reflected pulse returns while the outbound pulse is still being transmitted, such as when the reflecting discontinuity is very close to the TDR apparatus.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z