Sample records for drive suite t-19

  1. Kelly Services 1600 Valley River Drive, Suite 170

    E-Print Network [OSTI]

    Oregon, University of

    Kelly Services® 1600 Valley River Drive, Suite 170 Eugene, OR 97401 Phone: 541.687.9558 Fax: 541 put them on our payroll Experience 1946 ­ Present Kelly Services, Troy, MI We are a global, single to achieve results. We transform workforce challenges into opportunities. 1957 ­ Present Kelly Services

  2. College of Communication & Information 1345 Circle Park Drive | Suite 302

    E-Print Network [OSTI]

    Grissino-Mayer, Henri D.

    College of Communication & Information 1345 Circle Park Drive | Suite 302 Knoxville, TN 37996 & Communication Studies (CICS) - Awarded grants total $7 million +, NSF, IMLS, Sloan Foundation and more - 2.5+ million in science information and communication contract work at Oak Ridge National Labs. · Hands

  3. STAYS PNNL SUITE

    Energy Science and Technology Software Center (OSTI)

    002851IBMPC00 STAYSL PNNL Suite http://radiochemscieng.pnnl.gov/research_areas/research_area_description.asp?id=283

  4. Directed Test Suite Augmentation.

    E-Print Network [OSTI]

    Xu, Zhihong

    2013-01-01T23:59:59.000Z

    ??Test suite augmentation techniques are used in regression testing to identify code elements affected by changes and to generate test cases to cover those elements. (more)

  5. Portsmouth/Paducah Project Office, 1017 Majestic Drive, Suite...

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

    in the work environment. "Our focus in developing this training was to reinforce Conduct of Operations and in particular changing conditions, which are always present in...

  6. Portsmouth/Paducah Project Office, 1017 Majestic Drive, Suite...

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

    February 21, 2012 Robert.Smith@lex.doe.gov Lone Oak High School Wins DOE Regional Science Bowl; Middle School Competition Feb. 24 PADUCAH, KY - Lone Oak High School is the U.S....

  7. Portsmouth/Paducah Project Office, 1017 Majestic Drive, Suite...

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

    March 6, 2012 Robert.Smith@lex.doe.gov Calloway County Middle School Wins DOE Regional Science Bowl; National Competition April 26-30 PADUCAH, KY - Calloway County is the U.S....

  8. Bearing options, including design and testing, for direct drive linear generators in wave energy converters.

    E-Print Network [OSTI]

    Caraher, Sarah

    2011-01-01T23:59:59.000Z

    ??The key focus of this research was to investigate the bearing options most suited to operation in a novel direct drive linear generator. This was (more)

  9. Engineering AnteaterDrive

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Rockw ell & M DEA Engineering Tower AnteaterDrive AnteaterDrive East Peltason Drive EastPeltasonDrive East Peltason Drive Anteater Parking Structure EngineeringServiceRoad Engineering Laboratory Facility Engineering Gateway Engineering Hall AIRB Calit2 Engineering Lecture Hall Campus Building Engineering Building

  10. Design of a biomechanically synergistic exotendon suit

    E-Print Network [OSTI]

    Graves, Carmen Marten-Ellis

    2013-01-01T23:59:59.000Z

    The focus of this thesis is on the design, development, and evaluation of a lightweight, exotendon suit for load carriage. The suit is intended to be worn underneath the wearer's own clothes for use in a military setting, ...

  11. Bearing options, including design and testing, for direct drive linear generators in wave energy converters

    E-Print Network [OSTI]

    Caraher, Sarah

    2011-11-22T23:59:59.000Z

    The key focus of this research was to investigate the bearing options most suited to operation in a novel direct drive linear generator. This was done through bearing comparisons, modelling and testing. It is fundamental ...

  12. The Variable Vector Countermeasure Suit for space habitation and exploration

    E-Print Network [OSTI]

    Vasquez, Rebecca (Rebecca Ann)

    2014-01-01T23:59:59.000Z

    The Variable Vector Countermeasure Suit (V2Suit) is a countermeasure suit for sensorimotor adaptation and musculoskeletal deconditioning in microgravity. The V2suit will consist of modules containing arrays of control ...

  13. Steam System Tool Suite Introduction Guide

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Steam System Tool Suite Introduction Guide Alternate Text Narratives and Graphic.............................................................................................................................6 Modules Steam System Scoping Tool (SSST)........................................................................................8 Steam System Assessment Tool (SSAT

  14. US DRIVE Driving Research and Innovation for Vehicle Efficiency...

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

    Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy...

  15. Universal Benchmark Suites Jozo J. Dujmovic

    E-Print Network [OSTI]

    Dujmovic, Jozo J.

    the same universal benchmark suite. This approach substantially reduces the cost of benchmarking. Keywords global increase of the cost of benchmarking. The first step in the development of a method for benchmark1 Universal Benchmark Suites Jozo J. Dujmovic Department of Computer Science San Francisco State

  16. Black Literary Suite: Kansas Authors Edition

    E-Print Network [OSTI]

    Wiggins, Meredith Joan

    2015-03-04T23:59:59.000Z

    authors were born or lived in the Sunflower State, and their work often reflects their time in Kansas. This Black Literary Suite exhibit highlights four important black writersLangston Hughes, Gwendolyn Brooks, Frank Marshall Davis, and Kevin Young...

  17. NYU Electronic Suite for eBilling + ePayment For additional information, visit the Electronic Suite section on the

    E-Print Network [OSTI]

    Mohri, Mehryar

    NYU Electronic Suite for eBilling + ePayment For additional information, visit the Electronic Suite of options. This will link you to the secure eSuite website. If parents want to make an electronic check-check payment, parents must be invited by the student, to create an eSuite account. NYU's Electronic Suite

  18. Piezoelectric drive circuit

    DOE Patents [OSTI]

    Treu, C.A. Jr.

    1999-08-31T23:59:59.000Z

    A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes. 7 figs.

  19. Piezoelectric drive circuit

    DOE Patents [OSTI]

    Treu, Jr., Charles A. (Raymore, MO)

    1999-08-31T23:59:59.000Z

    A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes.

  20. Does Doctrine Drive Technology or Does Technology Drive Doctrine?

    E-Print Network [OSTI]

    Blasko, Dennis

    2010-01-01T23:59:59.000Z

    Brief No. 4 September 2010 Does Doctrine Drive Technology orDoes Technology Drive Doctrine? Dennis Blasko Summary Wthat emphasizes strategy over technology and may hold some

  1. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2006-10-10T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  2. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-07-11T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  3. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett Lee; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-09-19T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  4. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2007-02-27T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  5. Automobile Driving and Aggressive Behavior

    E-Print Network [OSTI]

    Novaco, Raymond W.

    1991-01-01T23:59:59.000Z

    The accident prone automobile driver. American Journal ofAutomobile Driving And Aggressive Behavior Raymond W. Novacofor its content or use. Automobile Driving and Aggressive

  6. The Accident Externality from Driving

    E-Print Network [OSTI]

    Edlin, Aaron S.; Karaca-Mandic, Pinar

    2007-01-01T23:59:59.000Z

    Sex-Divided Mile- age, Accident, and Insurance Cost DataMandic. 2003. The Accident Externality from Driving. Insurance Res. Council. accident externality from driving

  7. Prioritisation of test suites containing precedence constraints

    E-Print Network [OSTI]

    Miller, Tim

    1 Prioritisation of test suites containing precedence constraints Tim Miller Department@unimelb.edu.au Abstract--Test case prioritisation is the process of ordering the exe- cution of test cases to achieve a certain goal, such as increasing the rate of fault detection. Many existing test case prioritisation

  8. BDP: BrainSuite Diffusion Pipeline

    E-Print Network [OSTI]

    Leahy, Richard M.

    BDP: BrainSuite Diffusion Pipeline Chitresh Bhushan #12; Quantify microstructural tissue ROI Connectivity ROI Statistics MPRAGE Diffusion #12;Diffusion Pipeline Dicom to NIfTI Co ROIs Custom ROIs #12;Diffusion Pipeline Dicom to NIfTI Co-registration Diffusion Modeling Tractography

  9. Electric-Drive Vehicle engineering

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Electric-Drive Vehicle engineering COLLEGE of ENGINEERING Electric-drive engineers for 80 years t Home to nation's first electric-drive vehicle engineering program and alternative-credit EDGE Engineering Entrepreneur Certificate Program is a great addition to an electric-drive vehicle

  10. Variable Frequency Pump Drives

    E-Print Network [OSTI]

    Karassik, I. J.; Petraccaro, L. L.; McGuire, J. T.

    -frequency electric motor drive. What is happenin9 with variable frequency driven pun,ps is a classical illustration that evolution in technical products takes place not only because of changes in the processes served by these products, or because of innovations...-pole 3550 rpm squirrel caqe induction motor became available in the early 1930s that high pressure pumps operating at that speed could be buil t. And now, in the 1980s, the development of the solid-state, variable frequency electric motor drive...

  11. In Outer Space without a Space Suit?

    E-Print Network [OSTI]

    Alexander Bolonkin

    2008-06-24T23:59:59.000Z

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

  12. Global Energy Partners, LLC 500 Ygnacio Valley Road, Suite 450

    E-Print Network [OSTI]

    Global Energy Partners, LLC 500 Ygnacio Valley Road, Suite 450 Walnut Creek, CA 94596 P: 925. This report was prepared by Global Energy Partners, LLC 500 Ygnacio Valley Blvd., Suite 450 Walnut Creek, CA

  13. UC DAVIS FORENSIC SCIENCE CENTER 1909 Galileo Court, Suite B

    E-Print Network [OSTI]

    Peisert, Sean

    UC DAVIS FORENSIC SCIENCE CENTER 1909 Galileo Court, Suite B Davis, CA 95618 Directions to the UC Davis Forensic Science Center: Exit I80 south on Richards Blvd. Richards Blvd. changes its name at the end of the court. Our office is on the right, Suite B. FORENSIC SCIENCE CENTER SUITE B Key Contact

  14. Berkeley Lab's SPOT Suite Transforms Beamline Science

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone6 M. Babzien, I. Ben-Zvi,Benefits PlanabPerformanceSPOT Suite

  15. Holiday Food Drive

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLC History PublicationsFood Drive Holiday Food

  16. Holiday Gift Drive

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLC History PublicationsFood Drive Holiday FoodGift

  17. Electric Drive Vehicle Demonstration and Vehicle Infrastructure...

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

    Electric Drive Vehicle Demonstration and Vehicle Infrastructure Evaluation Electric Drive Vehicle Demonstration and Vehicle Infrastructure Evaluation 2010 DOE Vehicle Technologies...

  18. Next Generation Environmentally Friendly Driving Feedback Systems...

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

    Environmentally Friendly Driving Feedback Systems Research and Development Next Generation Environmentally Friendly Driving Feedback Systems Research and Development 2012 DOE...

  19. Driving Demand | Department of Energy

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

    strategies, results achieved to date, and advice for other programs. Driving Demand for Home Energy Improvements. This guide, developed by the Lawrence Berkeley National...

  20. Idaho National Laboratory Driving Directions

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

    Area Attractions and Events Area Geography Area History Area Links Driving Directions Idaho Falls Attractions and Events INL History INL Today Research Park Sagebrush Steppe...

  1. Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and...

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

    - 2013 BTO Peer Review Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System - 2013 BTO Peer Review Commercial Buildings...

  2. The Global Health Group 50 Beale Street, Suite 1200

    E-Print Network [OSTI]

    Klein, Ophir

    The Global Health Group 50 Beale Street, Suite 1200 San Francisco, CA 94105, USA tel: 415 Global Health Group Offices, 50 Beale Street, San Francisco, CA. Contact

  3. Overmodulation in Current Controlled Drives

    E-Print Network [OSTI]

    Hava, Ahmet

    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

  4. Warp Drive With Zero Expansion

    E-Print Network [OSTI]

    Jose Natario

    2002-03-13T23:59:59.000Z

    It is commonly believed that Alcubierre's warp drive works by contracting space in front of the warp bubble and expanding space behind it. We show that this expansion/contraction is but a marginal consequence of the choice made by Alcubierre, and explicitly construct a similar spacetime where no contraction/expansion occurs. Global and optical properties of warp drive spacetimes are also discussed.

  5. Test Suite Prioritization by Interaction Coverage Renee C. Bryce

    E-Print Network [OSTI]

    Bryce, Renee

    Test Suite Prioritization by Interaction Coverage Ren´ee C. Bryce Computer Science University event sequences. Managing the size of tests suites for EDS is diffi- cult as the number of event combinations and sequences grow ex- ponentially with the number of events. We propose a new test- ing technique

  6. Test Suite Prioritization by Interaction Coverage Renee C. Bryce

    E-Print Network [OSTI]

    Memon, Atif M.

    Test Suite Prioritization by Interaction Coverage Ren´ee C. Bryce Computer Science University event sequences. Managing the size of tests suites for EDS is dif- ficult as the number of possible event combinations and sequences grow exponentially with the number of events. We propose a new testing

  7. Consider Steam Turbine Drives for Rotating Equipment: Office of Industrial Technologies (OIT) Steam Tip Fact Sheet No.21

    SciTech Connect (OSTI)

    Not Available

    2002-01-01T23:59:59.000Z

    Steam turbines are well suited as prime movers for driving boiler feedwater pumps, forced or induced-draft fans, blowers, air compressors, and other rotating equipment. This service generally calls for a backpressure non-condensing steam turbine. The low-pressure steam turbine exhaust is available for feedwater heating, preheating of deaerator makeup water, and/or process requirements.

  8. Adjustable Speed Drive Industrial Applications

    E-Print Network [OSTI]

    Poole, J. N.

    Electric motors are significant users of electricity in the United States. Approximately 66 percent of the total electricity in the U.S. is used by electric motors. Electronic adjustable speed drives (ASDs) can save energy, lower maintenance cost...

  9. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1998-03-10T23:59:59.000Z

    A positive-drive field actuator motor is described which includes a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 62 figs.

  10. Integrated Biogeochemical and Hydrologic Processes Driving Arsenic...

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

    Biogeochemical and Hydrologic Processes Driving Arsenic Release from Shallow Sediments to Groundwaters of the Mekong Integrated Biogeochemical and Hydrologic Processes Driving...

  11. Grand Challenge Portfolio: Driving Innovations in Industrial...

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

    Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January 2011 Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January...

  12. Low backlash direct drive actuator

    DOE Patents [OSTI]

    Kuklo, T.C.

    1994-10-25T23:59:59.000Z

    A low backlash direct drive actuator is described which comprises a motor such as a stepper motor having at least 200 steps per revolution; a two part hub assembly comprising a drive hub coaxially attached to the shaft of the motor and having a plurality of drive pins; a driven hub having a plurality of bores in one end thereof in alignment with the drive pins in the drive hub and a threaded shaft coaxially mounted in an opposite end of the driven hub; and a housing having a central bore therein into which are fitted the drive hub and driven hub, the housing having a motor mount on one end thereof to which is mounted the stepper motor, and a closed end portion with a threaded opening therein coaxial with the central bore in the housing and receiving therein the threaded shaft attached to the driven hub. Limit switches mounted to the housing cooperate with an enlarged lip on the driven hub to limit the lateral travel of the driven hub in the housing, which also acts to limit the lateral travel of the threaded shaft which functions as a lead screw. 10 figs.

  13. Progress of the Computer-Aided Engineering of Electric Drive Vehicle Batteries (CAEBAT) (Presentation)

    SciTech Connect (OSTI)

    Pesaran, A. A.; Han, T.; Hartridge, S.; Shaffer, C.; Kim, G. H.; Pannala, S.

    2013-06-01T23:59:59.000Z

    This presentation, Progress of Computer-Aided Engineering of Electric Drive Vehicle Batteries (CAEBAT) is about simulation and computer-aided engineering (CAE) tools that are widely used to speed up the research and development cycle and reduce the number of build-and-break steps, particularly in the automotive industry. Realizing this, DOE?s Vehicle Technologies Program initiated the CAEBAT project in April 2010 to develop a suite of software tools for designing batteries.

  14. Engineering a robotic exoskeleton for space suit simulation

    E-Print Network [OSTI]

    Meyen, Forrest Edward

    2013-01-01T23:59:59.000Z

    Novel methods for assessing space suit designs and human performance capabilities are needed as NASA prepares for manned missions beyond low Earth orbit. Current human performance tests and training are conducted in space ...

  15. PREVENTIVE CONSERVATION: A CONCEPT SUITED TO THE CONSERVATION OF EARTHEN

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PREVENTIVE CONSERVATION: A CONCEPT SUITED TO THE CONSERVATION OF EARTHEN ARCHITECTURAL HERITAGE and Construction Key words: Preventive conservation, traditional conservation practices, risk reduction, heritage management Abstract The concept of "preventive conservation" is relatively old as it has already been

  16. Mechanical counter-pressure space suit design using active materials

    E-Print Network [OSTI]

    Holschuh, Bradley Thomas

    2014-01-01T23:59:59.000Z

    Mechanical counter-pressure (MCP) space suits have the potential to greatly improve the mobility of astronauts as they conduct planetary exploration activities; however, the underlying technologies required to provide ...

  17. The Global Health Group 50 Beale Street, Suite 1200

    E-Print Network [OSTI]

    Derisi, Joseph

    The Global Health Group 50 Beale Street, Suite 1200 San Francisco, CA 94105, USA tel: 415 ­ May 2014, with the possibility of extension. Location: UCSF Global Health Group Offices, 50 Beale

  18. Licence 1 -Parcours Bio Formulaire sur les suites

    E-Print Network [OSTI]

    Frénod, Emmanuel

    : " (+) - (+) ", " 1 0 ", " 0 ? ", " ", " 0 0 ", " 0 ", " 0 ", " 00 ", " 0 ". 5 Limites et in´egalit´es Th´eor l . Th´eor`eme 5.2 Soient (un) et (vn) deux suites. Si lim un = + et si il existe N N tel que (n N vn un) alors lim vn = + Th´eor`eme 5.3 Soient (un), (vn) et (wn) trois suites et l un r´eel. Si lim

  19. Ambulatory infusion suite: pre- and post-occupancy evaluation

    E-Print Network [OSTI]

    Shepley, Mardelle McCuskey; Rybkowski, Zofia; Aliber, Jennifer; Lange, Cathleen

    2015-02-08T23:59:59.000Z

    , London W1T 3JH, UK Building Research & Information Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/rbri20 Ambulatory infusion suite: pre- and post-occupancy evaluation Mardelle Mc... published: 08 Aug 2012. To cite this article: Mardelle McCuskey Shepley , Zofia Rybkowski , Jennifer Aliber & Cathleen Lange (2012): Ambulatory infusion suite: pre- and post-occupancy evaluation, Building Research & Information, 40:6, 700-712 To link...

  20. Materials and Textile Architecture Analyses for Mechanical Counter-Pressure Space Suits using Active Materials

    E-Print Network [OSTI]

    Buechley, Leah

    Mechanical counter-pressure (MCP) space suits have the potential to improve the mobility of astronauts as they conduct planetary exploration activities. MCP suits differ from traditional gas-pressurized space suits by ...

  1. Drive reconfiguration mechanism for tracked robotic vehicle

    DOE Patents [OSTI]

    Willis, W. David (Idaho Falls, ID)

    2000-01-01T23:59:59.000Z

    Drive reconfiguration apparatus for changing the configuration of a drive unit with respect to a vehicle body may comprise a guide system associated with the vehicle body and the drive unit which allows the drive unit to rotate about a center of rotation that is located at about a point where the drive unit contacts the surface being traversed. An actuator mounted to the vehicle body and connected to the drive unit rotates the drive unit about the center of rotation between a first position and a second position.

  2. E-Print Network 3.0 - arithmtiques des suites Sample Search Results

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

    arithmtiques des suites Search Powered by Explorit Topic List Advanced Search Sample search results for: arithmtiques des suites Page: << < 1 2 3 4 5 > >> 1 TORSEURS ARITHMTIQUES...

  3. Anomalous-viscosity current drive

    DOE Patents [OSTI]

    Stix, T.H.; Ono, M.

    1986-04-25T23:59:59.000Z

    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.

  4. The warp drive and antigravity

    E-Print Network [OSTI]

    Homer G. Ellis

    2004-11-19T23:59:59.000Z

    The warp drive envisioned by Alcubierre that can move a spaceship faster than light can, with modification, levitate it as if it were lighter than light, even allow it to go below a black hole's horizon and return unscathed. Wormhole-like versions of the author's `drainhole' (1973) might provide the drive, in the form of a by-pass of the spaceship composed of a multitude of tiny topological tunnels. The by-pass would divert the gravitational `ether' into a sink covering part of the spaceship's hull, connected by the tunnels to a source covering the remainder of the hull, to produce an ether flow like that of a river that disappears underground only to spring forth at a point downstream. This diversion would effectively shield the spaceship from external gravity.

  5. Warp Drive: A New Approach

    E-Print Network [OSTI]

    Richard Obousy; Gerald Cleaver

    2008-02-08T23:59:59.000Z

    Certain classes of higher dimensional models suggest that the Casimir Effect is a candidate for the cosmological constant. In this paper we demonstrate that a sufficiently advanced civilization could, in principal, manipulate the radius of the extra dimension to locally adjust the value of the cosmological constant. This adjustment could be tuned to generate an expansion/contraction of spacetime around a spacecraft creating an exotic form of field-propulsion. Due to the fact that spacetime expansion itself is not restricted by relativity, a faster-than-light 'warp drive' could be created. Calculations of the energy requirements of such a drive are performed and an 'ultimate' speed limit, based on the Planckian limits on the size of the extra dimensions is found.

  6. A Tool Suite to Prototype Pervasive Computing Applications

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    covering the development life- cycle of a pervasive computing system. This tool suite comprises a domain to deployment and test. Our approach We propose an approach that covers the development life- cycleSpecapplication 3 546 7 1 ArchitectureTaxonomy 2 Figure 1. Development life-cycle A. A design language for pervasive

  7. Using Dependency Structures for Prioritisation of Functional Test Suites

    E-Print Network [OSTI]

    Miller, Tim

    1 Using Dependency Structures for Prioritisation of Functional Test Suites Shifa-e-Zehra Haidry, Australia. 3 Abstract--Test case prioritisation is the process of ordering the exe- cution of test cases software delivery. Many existing test case prioritisation techniques consider that tests can be run in any

  8. PARENTE SUITE USER'S GUIDE (c) 1994-97

    E-Print Network [OSTI]

    White, Douglas R.

    and Marriage Networks 5/97 (c) 1991-97 Douglas R. White. Shareware Registration: $10US, 15DM or 50FF You-Calc, and various other utility programs for an evaluation period of up to 45 days. If you wish to continue using Parente Suite after 45 days, you must register by sending $10 to Douglas R. White, Social Science Plaza

  9. Predicting the Operational Effectiveness of Aircraft Survivability Equipment Suite

    E-Print Network [OSTI]

    Noh, Sanguk

    , and experiment with their autonomous decision-making against threats in various electronic warfare settings. We: Autonomous Decision-Making, Electronic Warfare Settings, Aircraft Survivability Equipment Suite, Operational Effectiveness 1. Introduction In order to counter threats in electronic warfare environments, a command

  10. Office of International Education Savant Building, Suite 211

    E-Print Network [OSTI]

    Li, Mo

    Office of International Education Savant Building, Suite 211 Atlanta, Georgia 30332-0284 PHONE: 404 Participant FROM: Stephanie Bullard Education Abroad Assistant, Office of International Education RE that GT programs do not currently sponsor. If you intend to transfer credit back to GT for courses your

  11. Optimization of condensing gas drive

    E-Print Network [OSTI]

    Lofton, Larry Keith

    1977-01-01T23:59:59.000Z

    - cal, undersaturated reservoir with gas being injected into the crest and oil being produced from the base of the structure. Fractional oil re- covery at gas breakthrough proved to be less sensitive to changes in oil withdrawal rates as the gas... injection pressure was increased. The validity of the model was established by accurately simulating several low pressure gas drives conducted in the laboratory. Oil recoveries at gas breakthrough using the model compared closely with those recoveries...

  12. October Blood Drive Announcement | Jefferson Lab

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

    American Red Cross Blood Drive Scheduled for Oct. 31 The American Red Cross Blood Drive will take place Friday, October 31st from 10 a.m.-4 p.m. in CEBAF Center, Room F113. New and...

  13. 1009 SNOWHILL DRIVE CONWAY, SC 29526

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    Owner 1009 Snowhill Drive Conway, SC 29526 (843) 902-5182 blakel@clemson.edu 4. Agricultural activities

  14. Marketing & Driving Demand Collaborative - Social Media Tools...

    Energy Savers [EERE]

    drivingdemandsocialmedia010611.pdf More Documents & Publications Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 Social Media for Natural...

  15. Multistage axial-flux PM machine for wheel direct drive

    SciTech Connect (OSTI)

    Caricchi, F.; Crescimbini, F.; Mezzetti, F.; Santini, E. [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering] [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering

    1996-07-01T23:59:59.000Z

    The design of direct-drive wheel motors must comply with diameter restriction due to housing the motor in a wheel rim and allow the achievement of very high torque density and overload capability. Slotless axial-flux permanent magnet machines (AFPMs) prove to be the best candidate for application in electric vehicles as direct-drive wheel motors, as in comparison with conventional machines they allow designs with higher compactness, lightness and efficiency. The paper presents a newly conceived AFPM which has a multistage structure and a water-cooled ironless stator. In the proposed new topology of the machine the space formerly occupied by the toroidal core becomes a water duct, which removes heat directly from the interior surface of the stator winding. The high efficiency of the machine cooling arrangement allows long-term 100% overload operation and great reduction of the machine weight. The multistage structure of the machine is suited to overcome the restriction on the machine diameter and meet the torque required at the wheel shaft. The paper gives guidelines for the design of a multistage AFPM with water-cooled ironless stator, and describes characteristics of a two-stage prototype machine rated 215 N{center_dot}m, 1,100 r/min.

  16. Static load testing of a heliostat drive

    SciTech Connect (OSTI)

    Grossman, J.W.

    1991-10-01T23:59:59.000Z

    The drive designed and built by the Solar Power Engineering Company (SPECO) for its large area heliostat failed under high wind loads during a winter storm. This report details the testing and analysis done to verify the load capabilities of the rebuilt heliostat drive. Changes in design and improvements in fabrication resulted in a usable drive. 12 figs., 7 tabs.

  17. Warp-drives, and other Weirdness

    E-Print Network [OSTI]

    Visser, Matt

    Wormholes, Warp-drives, and other Weirdness Matt Visser Physics Department Washington University. The fringes of general relativity almost seem to be infested with wormholes, warp-drives, and even time{Thorne traversable wormholes. Exotic matter (negative energy). Alcubierre's warp drive. Time machines. Temporal

  18. Vehicle Technologies Office: US DRIVE Materials Technical Team...

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

    US DRIVE Materials Technical Team Roadmap Vehicle Technologies Office: US DRIVE Materials Technical Team Roadmap The Materials Technical Team (MTT) of the U.S. DRIVE Partnership...

  19. Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments...

    Energy Savers [EERE]

    Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments Report The U.S. DRIVE 2014...

  20. Fluid cooled vehicle drive module

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Radosevich, Lawrence D.; Meyer, Andreas A.; Gollhardt, Neil; Kannenberg, Daniel G.

    2005-11-15T23:59:59.000Z

    An electric vehicle drive includes a support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support, in conjunction with other packaging features may form a shield from both external EM/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  1. ARM - SGP Rural Driving Hazards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC :ProductsSCM Forcing Data DerivedInstrumentsPolarExtendedRural Driving Hazards

  2. Traction Drive Systems Breakout Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment7 th ,Top Value AddedTotalTownTRACTION DRIVE

  3. Drive5 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (The followingDirect EnergyOrganization ofVirginiaYou areDrive5

  4. Enhanced verification test suite for physics simulation codes

    SciTech Connect (OSTI)

    Kamm, James R.; Brock, Jerry S.; Brandon, Scott T.; Cotrell, David L.; Johnson, Bryan; Knupp, Patrick; Rider, William J.; Trucano, Timothy G.; Weirs, V. Gregory

    2008-09-01T23:59:59.000Z

    This document discusses problems with which to augment, in quantity and in quality, the existing tri-laboratory suite of verification problems used by Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL). The purpose of verification analysis is demonstrate whether the numerical results of the discretization algorithms in physics and engineering simulation codes provide correct solutions of the corresponding continuum equations.

  5. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    Konrad, C.E.; Benson, R.A.

    1994-11-29T23:59:59.000Z

    A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor. 3 figures.

  6. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    Konrad, Charles E. (Roanoke, VA); Benson, Ralph A. (Roanoke, VA)

    1994-01-01T23:59:59.000Z

    A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor.

  7. Space suit simulator for partial gravity extravehicular activity experimentation and training

    E-Print Network [OSTI]

    Gilkey, Andrea L. (Andrea Lynn)

    2012-01-01T23:59:59.000Z

    During human space exploration, mobility is extremely limited when working inside a pressurized space suit. Astronauts perform extensive training on Earth to become accustomed to space suit-imposed high joint torques and ...

  8. Electric-Drive Vehicle Basics (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-04-01T23:59:59.000Z

    Describes the basics of electric-drive vehicles, including hybrid electric vehicles, plug-in hybrid electric vehicles, all-electric vehicles, and the various charging options.

  9. Advanced Electric Drive Vehicles ? A Comprehensive Education...

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

    Meeting arravt034tiferdowsi2012o.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program...

  10. Advanced Electric Drive Vehicles ? A Comprehensive Education...

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

    Peer Evaluation arravt034tiferdowsi2011p.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program...

  11. Advanced Electric Drive Vehicles ? A Comprehensive Education...

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

    -- Washington D.C. tiarravt034ferdowsi2010o.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program...

  12. Advanced Electric Drive Vehicle Education Program

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

    Training Consortium (NAFTC), together with its partners, will develop an Advanced Electric Drive Vehicle Education Program that will help accelerate mass market introduction...

  13. US DRIVE Highlights of Technical Accomplishments 2013

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

    for longer-lasting and more cost-effective electric drive vehicle batteries. National Renewable Energy Laboratory Advanced energy storage devices, such as lithium- based...

  14. Fuel Economy: What Drives Consumer Choice?

    E-Print Network [OSTI]

    Turrentine, Tom; Kurani, Kenneth; Heffner, Rusty

    2007-01-01T23:59:59.000Z

    Car Buyers and Fuel Economy? Energy Policy, vol. 35, 2007.Fuel Economy: What Drives Consumer Choice? BY TOMyou think about fuel economy? Rather, we listened closely

  15. Fuel Economy: What Drives Consumer Choice?

    E-Print Network [OSTI]

    Turrentine, Tom; Kurani, Kenneth S; Heffner, Reid R.

    2008-01-01T23:59:59.000Z

    Car Buyers and Fuel Economy? Energy Policy, vol. 35, 2007.Fuel Economy: What Drives Consumer Choice? BY TOMyou think about fuel economy? Rather, we listened closely

  16. Conformance Test Architecture and Test Suite for ANSI/NIST-ITL 1-2007

    E-Print Network [OSTI]

    Conformance Test Architecture and Test Suite for ANSI/NIST-ITL 1-2007 Fernando L. Podio Dylan Yaga Christofer J. McGinnis NISTIR 7791 #12;NISTIR 7791 Conformance Test Architecture and Test Suite for ANSI of these standards and the associated conformance test architectures and test suites. The ANSI/NIST-ITL standard

  17. Using Hybrid Algorithm For Pareto Efficient Multi-Objective Test Suite Minimisation

    E-Print Network [OSTI]

    Singer, Jeremy

    Using Hybrid Algorithm For Pareto Efficient Multi-Objective Test Suite Minimisation Shin Yoo & Mark Harman King's College London, Strand, London, WC2R 2LS, UK Abstract Test suite minimisation techniques seek to reduce the effort required for regression testing by selecting a subset of test suites

  18. Measuring and Improving Latency to Avoid Test Suite Wear Out Shin Yoo & Mark Harman

    E-Print Network [OSTI]

    Singer, Jeremy

    Measuring and Improving Latency to Avoid Test Suite Wear Out Shin Yoo & Mark Harman King's College London Centre for Research on Evolution, Search & Testing (CREST) London, UK {shin.yoo, mark introduces the concept of test suite latency. The more latent a test suite, the more it is possible

  19. The SECO suite of codes for site Performance Assessment

    SciTech Connect (OSTI)

    Roache, P.J. [Ecodynamics Research Associates, Inc., Albuquerque, NM (United States)

    1993-03-01T23:59:59.000Z

    Modeling for Performance Assessment of the Waste Isolation Pilot Plant (WIPP ) has led to development of the SECO suite of codes for groundwater flow, particle tracking, and transport. Algorithm and code developments include the following areas: facilitation of grid convergence tests in multiple domains; correct treatment of transmissivity factors for unconfined aquifers; efficient multigrid algorithms; a formulation of brine Darcy flow equations that uses freshwater head as the dependent able; boundary-fitted coordinates; temporal high order particle tracking; an efficient and accurate implicit Finite Volume TVD algorithm for radionuclide transport in (possibly) fractured porous media; accurate calculation of advection via a flux-based modified method of characteristics; and Quality Assurance procedures.

  20. DRIVE Analysis Tool Generates Custom Vehicle Drive Cycles Based on Real-World Data (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-04-01T23:59:59.000Z

    This fact sheet from the National Renewable Energy Laboratory describes the Drive-Cycle Rapid Investigation, Visualization, and Evaluation (DRIVE) analysis tool, which uses GPS and controller area network data to characterize vehicle operation and produce custom vehicle drive cycles, analyzing thousands of hours of data in a matter of minutes.

  1. Eco-Driving: Drive Green, Save Green Part of the Clean Fuel Advanced Technology Project

    E-Print Network [OSTI]

    Eco- Driving: Drive Green, Save Green Part of the Clean Fuel Advanced Technology Project Funded · Procedures: Identical vehicles deliver different economy depending on how they are used and cared;Eco-Driving Procedures 1. Vehicle Use/Treatment · Use A/C only over 40mpg · Remove excess weight 2

  2. Integration of APECS and VE-Suite for Data Overlay

    SciTech Connect (OSTI)

    McCorkel, Doug (Iowa State University, Ames, IA); Bivins, Gerrick (Iowa State University, Ames, IA); Jordan, Terry; Bryden, Mark (Iowa State University, Ames, IA); Zitney, S.E.; Widmann, John (ANSYS, Lebanon, NH); Osawe, Maxwell

    2008-06-01T23:59:59.000Z

    In the design of advanced power generation facilities, process simulation tools are being utilized to model plant behavior and quickly analyze results. While such tools enable investigation of crucial aspects of plant design, typical commercial process simulators still do not explore some plant design information, including high-fidelity data from computational fluid dynamics (CFD) models of complex thermal and fluid flow phenomena, economics data used for policy decisions, operational data after the plant is constructed, and as-built information for use in as-designed models. Software tools must be created that allow disparate sources of information to be integrated for facilitating accurate and effective plant design. At the Department of Energys (DOE) National Energy Technology Laboratory (NETL), the Advanced Process Engineering Co-Simulator (APECS) has been developed as an integrated software suite that combines process simulation (e.g., Aspen Plus) and high-fidelity equipment simulation (e.g., FLUENT). In this paper, the integration of the high-fidelity CFD data with overall process data in a virtual power simulation environment will be described. More specifically, we will highlight VE-Suite, an open-source virtual engineering (VE) software toolkit, and its support of Aspen Plus Hierarchy blocks via the VE-AspenUnit.

  3. Integration of APECS and VE-Suite for data overlay

    SciTech Connect (OSTI)

    McCorkel, D.; Bivins, G.; Jordan, T.; Bryden, M.; Zitney, S.; Widmann, J.; Osawe, M.

    2008-01-01T23:59:59.000Z

    In the design of advanced power generation facilities, process simulation tools are being utilized to model plant behavior and quickly analyze results. While such tools enable investigation of crucial aspects of plant design, typical commercial process simulators still do not explore some plant design information, including high-fidelity data from computational fluid dynamics (CFD) models of complex thermal and fluid flow phenomena, economics data used for policy decisions, operational data after the plant is constructed, and as-built information for use in as-designed models. Software tools must be created that allow disparate sources of information to be integrated for facilitating accurate and effective plant design. At the Department of Energys (DOE) National Energy Technology Laboratory (NETL), the Advanced Process Engineering Co-Simulator (APECS) has been developed as an integrated software suite that combines process simulation (e.g., Aspen Plus) and high-fidelity equipment simulation (e.g., FLUENT). In this paper, the integration of the high-fidelity CFD data with overall process data in a virtual power simulation environment will be described. More specifically, we will highlight VE-Suite, an open-source virtual engineering (VE) software toolkit, and its support of Aspen Plus Hierarchy blocks via the VE-AspenUnit.

  4. OUTCOMES FROM THE FRENCH NATIONAL PROJECT DRIVE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    OUTCOMES FROM THE FRENCH NATIONAL PROJECT DRIVE EXPERIMENTAL DATA FOR THE EVALUATION OF HYDROGEN with success a project called DRIVE to the National Research Agency. This project aims at providing procedures and technologies will provide only limited guidance for hydrogen-powered vehicles. That is because

  5. Electric top drives gain wide industry acceptance

    SciTech Connect (OSTI)

    Riahi, M.L.

    1998-05-01T23:59:59.000Z

    Since its introduction, the top drive drilling system has gained acceptance as a productive and safe method for drilling oil and gas wells. Originally, the system was used mostly for offshore and higher cost land drilling, and it had to be installed as a permanent installation because of its enormous weight and size. Essentially, a top drive replaces the kelly and rotary table as the means of rotating drillpipe on oil, gas and geothermal rigs and is considered to be 15% to 40% more efficient than a kelly drive. Top drive systems allow the operator to drill and maintain directional orientation for triple stands and provide tripping efficiency because of the ability to ream and circulate with triple stands, to reduce the risk of stuck pipe or lost wells, and to improve well control and pipe handling safety. The paper describes electric top drives with DC motors, top drives with AC motors, top drives with permanent magnet motors, and top drives with permanent magnet brushless synchronous motors.

  6. Drilling of wells with top drive unit

    SciTech Connect (OSTI)

    Boyadjieff, G.I.

    1984-05-22T23:59:59.000Z

    Well drilling apparatus including a top drive drilling assembly having a motor driven stem adapted to be attached to the upper end of a drill string and drive it during a drilling operation, a torque wrench carried by the top drive assembly and movable upwardly and downwardly therewith and operable to break a threated connection between the drill string and the stem, and an elevator carried by and suspended from the top drive assembly and adapted to engage a section of drill pipe beneath the torque wrench in suspending relation. The torque wrench and elevator are preferably retained against rotation with the rotary element which drives the drill string, but may be movable vertically relative to that rotary element and relative to one another in a manner actuating the apparatus between various different operating conditions.

  7. Control rod drive hydraulic system

    DOE Patents [OSTI]

    Ose, Richard A. (San Jose, CA)

    1992-01-01T23:59:59.000Z

    A hydraulic system for a control rod drive (CRD) includes a variable output-pressure CR pump operable in a charging mode for providing pressurized fluid at a charging pressure, and in a normal mode for providing the pressurized fluid at a purge pressure, less than the charging pressure. Charging and purge lines are disposed in parallel flow between the CRD pump and the CRD. A hydraulic control unit is disposed in flow communication in the charging line and includes a scram accumulator. An isolation valve is provided in the charging line between the CRD pump and the scram accumulator. A controller is operatively connected to the CRD pump and the isolation valve and is effective for opening the isolation valve and operating the CRD pump in a charging mode for charging the scram accumulator, and closing the isolation valve and operating the CRD pump in a normal mode for providing to the CRD through the purge line the pressurized fluid at a purge pressure lower than the charging pressure.

  8. Risks of using AP locations discovered through war driving

    E-Print Network [OSTI]

    Kotz, David

    Risks of using AP locations discovered through war driving Minkyong Kim, Jeffrey J. Fielding the actual locations are often unavailable, they use estimated locations from war driving estimated through war driving. War driving is the process of collecting Wi-Fi beacons by driving or walking

  9. Installation considerations for IGBT AC drives

    SciTech Connect (OSTI)

    Skibinski, G.L.

    1997-06-01T23:59:59.000Z

    In the last four years, Adjustable Speed ac Drive (ASD) manufacturers have migrated from Bipolar Junction Transistor (BJT) semiconductors to Insulated Gate Bipolar Transistors (IGBTs) as the preferred Output switching device. The advantage of IGBTs over BJTs is that device rise and fall time switching capability is 5 - 10 times faster, resulting in lower device switching loss and a more efficient drive. However, for a similar motor cable length as the BJT drive, the faster output voltage risetime of the IGBT drive may increase the dielectric voltage stress on the motor and cable due to a phenomenon called reflected wave. Faster output dv/dt transitions of IGBT drives also increase the possibility for phenomenon such as increased Common Mode (CM) electrical noise, Electromagnetic Interference (EMI) problems and increased capacitive cable charging current problems. Also, recent experience suggests any Pulse Width Modulated (PWM) drive with a steep fronted output voltage wave form may increase motor shaft voltage and lead to a bearing current phenomenon known as fluting. This paper provides a basic understanding of these issues, as well as solutions, to insure a successful drive system installation.

  10. Chapter 18: Variable Frequency Drive Evaluation Protocol

    SciTech Connect (OSTI)

    Romberger, J.

    2014-11-01T23:59:59.000Z

    An adjustable-speed drive (ASD) includes all devices that vary the speed of a rotating load, including those that vary the motor speed and linkage devices that allow constant motor speed while varying the load speed. The Variable Frequency Drive Evaluation Protocol presented here addresses evaluation issues for variable-frequency drives (VFDs) installed on commercial and industrial motor-driven centrifugal fans and pumps for which torque varies with speed. Constant torque load applications, such as those for positive displacement pumps, are not covered by this protocol. Other ASD devices, such as magnetic drive, eddy current drives, variable belt sheave drives, or direct current motor variable voltage drives, are also not addressed. The VFD is by far the most common type of ASD hardware. With VFD speed control on a centrifugal fan or pump motor, energy use follows the affinity laws, which state that the motor electricity demand is a cubic relationship to speed under ideal conditions. Therefore, if the motor runs at 75% speed, the motor demand will ideally be reduced to 42% of full load power; however, with other losses it is about 49% of full load power.

  11. A high-fidelity harmonic drive model.

    SciTech Connect (OSTI)

    Preissner, C.; Royston, T. J.; Shu, D. (APS Engineering Support Division); ( MCS); (Univ. of Illinois)

    2012-01-01T23:59:59.000Z

    In this paper, a new model of the harmonic drive transmission is presented. The purpose of this work is to better understand the transmission hysteresis behavior while constructing a new type of comprehensive harmonic drive model. The four dominant aspects of harmonic drive behavior - nonlinear viscous friction, nonlinear stiffness, hysteresis, and kinematic error - are all included in the model. The harmonic drive is taken to be a black box, and a dynamometer is used to observe the input/output relations of the transmission. This phenomenological approach does not require any specific knowledge of the internal kinematics. In a novel application, the Maxwell resistive-capacitor hysteresis model is applied to the harmonic drive. In this model, sets of linear stiffness elements in series with Coulomb friction elements are arranged in parallel to capture the hysteresis behavior of the transmission. The causal hysteresis model is combined with nonlinear viscous friction and spectral kinematic error models to accurately represent the harmonic drive behavior. Empirical measurements are presented to quantify all four aspects of the transmission behavior. These measurements motivate the formulation of the complete model. Simulation results are then compared to additional measurements of the harmonic drive performance.

  12. User Guide for the STAYSL PNNL Suite of Software Tools

    SciTech Connect (OSTI)

    Greenwood, Lawrence R.; Johnson, Christian D.

    2013-02-27T23:59:59.000Z

    The STAYSL PNNL software suite provides a set of tools for working with neutron activation rates measured in a nuclear fission reactor, an accelerator-based neutron source, or any neutron field to determine the neutron flux spectrum through a generalized least-squares approach. This process is referred to as neutron spectral adjustment since the preferred approach is to use measured data to adjust neutron spectra provided by neutron physics calculations. The input data consist of the reaction rates based on measured activities, an initial estimate of the neutron flux spectrum, neutron activation cross sections and their associated uncertainties (covariances), and relevant correction factors. The output consists of the adjusted neutron flux spectrum and associated covariance matrix, which is useful for neutron dosimetry and radiation damage calculations.

  13. A causally connected superluminal Warp Drive spacetime

    E-Print Network [OSTI]

    F. Loup; R. Held; D. Waite; E. Halerewicz, Jr.; M. Stabno; M. Kuntzman; R. Sims

    2002-02-06T23:59:59.000Z

    It will be shown that while horizons do not exist for warp drive spacetimes traveling at subluminal velocities horizons begin to develop when a warp drive spacetime reaches luminal velocities. However it will be shown that the control region of a warp drive ship lie within the portion of the warped region that is still causally connected to the ship even at superluminal velocities, therefore allowing a ship to slow to subluminal velocities. Further it is shown that the warped regions which are causally disconnected from a warp ship have no correlation to the ship velocity.

  14. Wind turbine ring/shroud drive system

    DOE Patents [OSTI]

    Blakemore, Ralph W.

    2005-10-04T23:59:59.000Z

    A wind turbine capable of driving multiple electric generators having a ring or shroud structure for reducing blade root bending moments, hub loads, blade fastener loads and pitch bearing loads. The shroud may further incorporate a ring gear for driving an electric generator. In one embodiment, the electric generator may be cantilevered from the nacelle such that the gear on the generator drive shaft is contacted by the ring gear of the shroud. The shroud also provides protection for the gearing and aids in preventing gear lubricant contamination.

  15. Vision and Inertial Sensor Based Drive Trains Control

    E-Print Network [OSTI]

    Cheng, Haifei

    2010-01-01T23:59:59.000Z

    Inertial Sensor Based Drive Trains Control by Haifei Cheng AInertial Sensor Based Drive Trains Control c 2010 by HaifeiInertial Sensor Based Drive Trains Control by Haifei Cheng

  16. Image fusion for a nighttime driving display

    E-Print Network [OSTI]

    Herrington, William Frederick

    2005-01-01T23:59:59.000Z

    An investigation into image fusion for a nighttime driving display application was performed. Most of the image fusion techniques being investigated in this application were developed for other purposes. When comparing the ...

  17. Vehicle Technologies Office: Electric Drive Technologies

    Broader source: Energy.gov [DOE]

    Advanced power electronics and electric motors (APEEM) that make up vehicles' electric drive system are essential to hybrid and plug-in electric vehicles. As such, improvements in these...

  18. Ag Education Student 1234 Education Drive

    E-Print Network [OSTI]

    Ag Education Student 1234 Education Drive Fort Collins, CO 80523 educationstudent@gmail.com~970-222-1234 Education Bachelors of Science in Agriculture Education (Teacher Licensure requirements met) Anticipated May

  19. January Blood Drive Announcement | Jefferson Lab

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

    Red Cross Blood Drive will take place Tuesday, January 27th from 10 a.m.-4 p.m. in CEBAF Center, Room F113. New and repeat donors are encouraged to attend. To schedule an...

  20. Universal power transistor base drive control unit

    SciTech Connect (OSTI)

    Gale, Allan R. (Allen Park, MI); Gritter, David J. (Racine, WI)

    1988-01-01T23:59:59.000Z

    A saturation condition regulator system for a power transistor which achieves the regulation objectives of a Baker clamp but without dumping excess base drive current into the transistor output circuit. The base drive current of the transistor is sensed and used through an active feedback circuit to produce an error signal which modulates the base drive current through a linearly operating FET. The collector base voltage of the power transistor is independently monitored to develop a second error signal which is also used to regulate base drive current. The current-sensitive circuit operates as a limiter. In addition, a fail-safe timing circuit is disclosed which automatically resets to a turn OFF condition in the event the transistor does not turn ON within a predetermined time after the input signal transition.

  1. Fuel Economy: What Drives Consumer Choice?

    E-Print Network [OSTI]

    Turrentine, Tom; Kurani, Kenneth; Heffner, Rusty

    2007-01-01T23:59:59.000Z

    S. Kurani, Car Buyers and Fuel Economy? Energy Policy,Fuel Economy: What Drives Consumer Choice? BY TOMa car, do they think about fuel costs over time, are they

  2. Newtonian limits of warp drive spacetimes

    E-Print Network [OSTI]

    Jose Natario

    2009-10-07T23:59:59.000Z

    We find a class of warp drive spacetimes possessing Newtonian limits, which we then determine. The same method is used to compute Newtonian limits of the Schwarzschild solution and spatially flat Friedmann-Robertson-Walker cosmological models.

  3. Safe Tractor Operation: Driving on Highways

    E-Print Network [OSTI]

    Smith, David

    2004-09-16T23:59:59.000Z

    About 50 tractor drivers are killed each year in collisions with other vehicles on public roads. Many of these accidents could be prevented. This publication describes the legal requirements for operating a tractor on public roads, safe driving...

  4. Consider Steam Turbine Drives for Rotating Equipment

    SciTech Connect (OSTI)

    Not Available

    2006-01-01T23:59:59.000Z

    This revised ITP tip sheet on steam turbine drives for rotating equipment provides how-to advice for improving the system using low-cost, proven practices and technologies.

  5. Frequency modulation drive for a piezoelectric motor

    DOE Patents [OSTI]

    Mittas, Anthony (Albuquerque, NM)

    2001-01-01T23:59:59.000Z

    A piezoelectric motor has peak performance at a specific frequency f.sub.1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f.sub.1 -.DELTA.x to f.sub.1 +.DELTA.y.

  6. Fundamental limitations on "warp drive" spacetimes

    E-Print Network [OSTI]

    Francisco S. N. Lobo; Matt Visser

    2004-10-31T23:59:59.000Z

    "Warp drive" spacetimes are useful as "gedanken-experiments" that force us to confront the foundations of general relativity, and among other things, to precisely formulate the notion of "superluminal" communication. We verify the non-perturbative violation of the classical energy conditions of the Alcubierre and Natario warp drive spacetimes and apply linearized gravity to the weak-field warp drive, testing the energy conditions to first and second order of the non-relativistic warp-bubble velocity. We are primarily interested in a secondary feature of the warp drive that has not previously been remarked upon, if it could be built, the warp drive would be an example of a "reaction-less drive". For both the Alcubierre and Natario warp drives we find that the occurrence of significant energy condition violations is not just a high-speed effect, but that the violations persist even at arbitrarily low speeds. An interesting feature of this construction is that it is now meaningful to place a finite mass spaceship at the center of the warp bubble, and compare the warp field energy with the mass-energy of the spaceship. There is no hope of doing this in Alcubierre's original version of the warp-field, since by definition the point in the center of the warp bubble moves on a geodesic and is "massless". That is, in Alcubierre's original formalism and in the Natario formalism the spaceship is always treated as a test particle, while in the linearized theory we can treat the spaceship as a finite mass object. For both the Alcubierre and Natario warp drives we find that even at low speeds the net (negative) energy stored in the warp fields must be a significant fraction of the mass of the spaceship.

  7. Semiclassical instability of dynamical warp drives

    E-Print Network [OSTI]

    Stefano Finazzi; Stefano Liberati; Carlos Barcel

    2009-07-14T23:59:59.000Z

    Warp drives are very interesting configurations in General Relativity: At least theoretically, they provide a way to travel at superluminal speeds, albeit at the cost of requiring exotic matter to exist as solutions of Einstein's equations. However, even if one succeeded in providing the necessary exotic matter to build them, it would still be necessary to check whether they would survive to the switching on of quantum effects. Semiclassical corrections to warp-drive geometries have been analyzed only for eternal warp-drive bubbles traveling at fixed superluminal speeds. Here, we investigate the more realistic case in which a superluminal warp drive is created out of an initially flat spacetime. First of all we analyze the causal structure of eternal and dynamical warp-drive spacetimes. Then we pass to the analysis of the renormalized stress-energy tensor (RSET) of a quantum field in these geometries. While the behavior of the RSET in these geometries has close similarities to that in the geometries associated with gravitational collapse, it shows dramatic differences too. On one side, an observer located at the center of a superluminal warp-drive bubble would generically experience a thermal flux of Hawking particles. On the other side, such Hawking flux will be generically extremely high if the exotic matter supporting the warp drive has its origin in a quantum field satisfying some form of Quantum Inequalities. Most of all, we find that the RSET will exponentially grow in time close to, and on, the front wall of the superluminal bubble. Consequently, one is led to conclude that the warp-drive geometries are unstable against semiclassical back-reaction.

  8. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1995-07-11T23:59:59.000Z

    A high-torque, low speed, positive-drive field actuator motor is disclosed including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 37 figs.

  9. Energy Department Invests to Drive Down Costs of Carbon Capture...

    Energy Savers [EERE]

    Invests to Drive Down Costs of Carbon Capture, Support Reductions in Greenhouse Gas Pollution Energy Department Invests to Drive Down Costs of Carbon Capture, Support Reductions...

  10. High-Temperature, Air-Cooled Traction Drive Inverter Packaging...

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

    High-Temperature, Air-Cooled Traction Drive Inverter Packaging High-Temperature, Air-Cooled Traction Drive Inverter Packaging 2010 DOE Vehicle Technologies and Hydrogen Programs...

  11. EV Everywhere EV Everywhere Grand Challenge - Electric Drive...

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

    EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop Agenda EV Everywhere EV Everywhere Grand Challenge - Electric Drive (Power...

  12. EV Everywhere Grand Challenge - Electric Drive (Power Electronics...

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

    - Electric Drive (Power Electronics and Electric Machines) Workshop EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop List of...

  13. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

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

    High-Voltage Solid Polymer Batteries for Electric Drive Vehicles High-Voltage Solid Polymer Batteries for Electric Drive Vehicles 2012 DOE Hydrogen and Fuel Cells Program and...

  14. EV Everywhere Electric Drive Workshop: Preliminary Target-Setting...

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

    Electric Drive Workshop: Preliminary Target-Setting Framework EV Everywhere Electric Drive Workshop: Preliminary Target-Setting Framework Presentation given at the EV Everywhere...

  15. Electric Drive Component Manufacturing: Magna E-Car Systems of...

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

    and Peer Evaluation arravt027apethomas2011p.pdf More Documents & Publications Electric Drive Component Manufacturing: Magna E-Car Systems of America, Inc. Electric Drive...

  16. Center for Electric Drive Transportation at the University of...

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

    Electric Drive Transportation at the University of Michigan - Dearborn Center for Electric Drive Transportation at the University of Michigan - Dearborn 2012 DOE Hydrogen and Fuel...

  17. Electric Drive and Advanced Battery and Components Testbed (EDAB...

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

    Review and Peer Evaluation vss033carlson2011o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Electric Drive and Advanced...

  18. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

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

    High-Voltage Solid Polymer Batteries for Electric Drive Vehicles High-Voltage Solid Polymer Batteries for Electric Drive Vehicles 2013 DOE Hydrogen and Fuel Cells Program and...

  19. Improving Motor and Drive System Performance - A Sourcebook for...

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

    motors and drives, as well as resources for additional information, tools, software, videos, and training opportunities. Improving Motor and Drive System Performance - A...

  20. Computer-Aided Engineering for Electric Drive Vehicle Batteries...

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

    Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) 2011 DOE Hydrogen and Fuel Cells...

  1. Utilizing the Traction Drive Power Electronics System to Provide...

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

    Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability...

  2. Energy Upgrade California Drives Demand From Behind the Wheel...

    Energy Savers [EERE]

    Upgrade California Drives Demand From Behind the Wheel Energy Upgrade California Drives Demand From Behind the Wheel Photo of a trailer with the Energy Upgrade California logo and...

  3. Designing a Suit to Protect Migrant Farm Workers in California from Pesticide Exposure

    E-Print Network [OSTI]

    Agogino, Alice M.

    .........................................................................................................19 4.1 PESTICIDE RESISTANCE PROPERTIES OF MATERIALS...................................................................................................................................30 4.2 THERMAL COMFORT OF SUIT...........................................................................................................................................31 4.2.2 Thermal Comfort Testing Methods

  4. From Hydrogen Fuel Cells to High-Altitude-Pilot Protection Suits...

    Energy Savers [EERE]

    From Hydrogen Fuel Cells to High-Altitude-Pilot Protection Suits- Mound Science and Energy Museum Programs Cover a Wide Range of Topics From Hydrogen Fuel Cells to...

  5. Cyclic transgressive and regressive sequences, Paleocene Suite, Sirte basin, Libya

    SciTech Connect (OSTI)

    Abushagur, S.A.

    1986-05-01T23:59:59.000Z

    The Farrud lithofacies represent the main reservoir rock of the Ghani oil field and Western Concession Eleven of the Sirte basin, Libya. Eight microfacies are recognized in the Farrud lithofacies in the Ghani field area: (1) bryozoan-bioclastic (shallow, warm, normal marine shelf deposits); (2) micrite (suggesting quiet, low-energy conditions such as may have existed in a well-protected lagoon); (3) dasycladacean (very shallow, normal marine environment); (4) bioclastic (very shallow, normal marine environment with moderate to vigorous energy); (5) mgal (very shallow, normal marine environment in a shelf lagoon); (6) pelletal-skeletal (deposition within slightly agitated waters of a sheltered lagoon with restricted circulation); (7) dolomicrite (fenestrate structures indicating a high intertidal environment of deposition); and (8) anhydrite (supratidal environment). The Paleocene suite of the Farrud lithofacies generally shows a prograding, regressive sequence of three facies: (1) supratidal facies, characterized by nonfossiliferous anhydrite, dolomite, and dolomitic pelletal carbonate mudstone; (2) intertidal to very shallow subtidal facies, characterized by fossiliferous, pelletal, carbonate mudstone and skeletal calcarenite; and (3) subtidal facies, characterized by a skeletal, pelletal, carbonate mudstone. Source rocks were primarily organic-rich shales overlying the Farrud reservoir rock. Porosity and permeability were developed in part by such processes as dolomitization, leaching, and fracturing in the two progradational, regressive carbonate facies. Hydrocarbons were trapped by a supratidal, anhydrite cap rock.

  6. Semiclassical instability of dynamical warp drives

    E-Print Network [OSTI]

    Finazzi, Stefano; Barcel, Carlos

    2009-01-01T23:59:59.000Z

    Warp drives are very interesting configurations in General Relativity: At least theoretically, they provide a way to travel at superluminal speeds, albeit at the cost of requiring exotic matter to exist as solutions of Einstein's equations. However, even if one succeeded in providing the necessary exotic matter to build them, it would still be necessary to check whether they would survive to the switching on of quantum effects. Semiclassical corrections to warp-drive geometries have been analyzed only for eternal warp-drive bubbles traveling at fixed superluminal speeds. Here, we investigate the more realistic case in which a superluminal warp drive is created out of an initially flat spacetime. First of all we analyze the causal structure of eternal and dynamical warp-drive spacetimes. Then we pass to the analysis of the renormalized stress-energy tensor (RSET) of a quantum field in these geometries. While the behavior of the RSET in these geometries has close similarities to that in the geometries associate...

  7. THE WARP DRIVE AND ANTIGRAVITY Homer G. Ellis

    E-Print Network [OSTI]

    Ellis, Homer

    THE WARP DRIVE AND ANTIGRAVITY Homer G. Ellis Abstract. The warp drive envisioned by Alcubierre that dis- tortion, however it might be designed, would #12;t well the picturesque name `warp drive' familiar from science #12;ction. In this paper I shall show that such a warp drive can be made to serve

  8. Specification and Analysis of the AER/NCA Active Network Protocol Suite in

    E-Print Network [OSTI]

    ?lveczky, Peter Csaba

    Specification and Analysis of the AER/NCA Active Network Protocol Suite in Real­Time Maude Peter and the Maude formal methodology to the specification and analy­ sis of the AER/NCA suite of active network and the composability of its components, AER/NCA poses challenging new problems for its formal specification

  9. Specification and Analysis of the AER/NCA Active Network Protocol Suite in

    E-Print Network [OSTI]

    ?lveczky, Peter Csaba

    Specification and Analysis of the AER/NCA Active Network Protocol Suite to the specification and analy- sis of the AER/NCA suite of active network multicast protocol compo- nents, AER/NCA poses challenging new problems for its formal specification and analysis. Real-Time Maude

  10. Enabling Process Support for Advanced Applications with the AristaFlow BPM Suite

    E-Print Network [OSTI]

    Pfeifer, Holger

    Enabling Process Support for Advanced Applications with the AristaFlow BPM Suite Andreas Lanz1. In this software demonstration we show how the AristaFlow BPM Suite ­ an adaptive process management system) as offered by AristaFlow. 1 Introduction In many domains IT support can benefit from BPM technologies

  11. Designing for the Future: The New Open Suite of Programs and Peer Review Process

    E-Print Network [OSTI]

    Charette, Andr

    Designing for the Future: The New Open Suite of Programs and Peer Review Process Questions and Answers 1 Rationale 1. If the changes to the Open Suite of Programs and peer review process are successful processes is to develop a high quality, flexible and sustainable system capable of identifying

  12. Linearized warp drive and the energy conditions

    E-Print Network [OSTI]

    Francisco S. N. Lobo; Matt Visser

    2004-12-14T23:59:59.000Z

    ''Warp drive'' spacetimes are useful as ''gedanken-experiments'' and as a theoretician's probe of the foundations of general relativity. Applying linearized gravity to the weak-field warp drive, i.e., for non-relativistic warp-bubble velocities, we find that the occurrence of energy condition violations in this class of spacetimes is generic to the form of the geometry under consideration and is not simply a side-effect of the ''superluminal'' properties. Using the linearized construction it is now possible to compare the warp field energy with the mass-energy of the spaceship, and applying the ''volume integral quantifier'', extremely stringent conditions on the warp drive spacetime are found.

  13. The unphysical nature of "Warp Drive"

    E-Print Network [OSTI]

    Michael J. Pfenning; L. H. Ford

    2001-03-15T23:59:59.000Z

    We will apply the quantum inequality type restrictions to Alcubierre's warp drive metric on a scale in which a local region of spacetime can be considered ``flat''. These are inequalities that restrict the magnitude and extent of the negative energy which is needed to form the warp drive metric. From this we are able to place limits on the parameters of the ``Warp Bubble''. It will be shown that the bubble wall thickness is on the order of only a few hundred Planck lengths. Then we will show that the total integrated energy density needed to maintain the warp metric with such thin walls is physically unattainable.

  14. The unphysical nature of "Warp Drive"

    E-Print Network [OSTI]

    Pfenning, M J; Pfenning, Michael J.

    1997-01-01T23:59:59.000Z

    We will apply the quantum inequality type restrictions to Alcubierre's warp drive metric on a scale in which a local region of spacetime can be considered ``flat''. These are inequalities that restrict the magnitude and extent of the negative energy which is needed to form the warp drive metric. From this we are able to place limits on the parameters of the ``Warp Bubble''. It will be shown that the bubble wall thickness is on the order of only a few hundred Planck lengths. Then we will show that the total integrated energy density needed to maintain the warp metric with such thin walls is physically unattainable.

  15. E-Print Network 3.0 - adjustable electric drives Sample Search...

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

    drives Search Powered by Explorit Topic List Advanced Search Sample search results for: adjustable electric drives...

  16. Risk Management 1851 N. Research Drive

    E-Print Network [OSTI]

    Moore, Paul A.

    -372-3135 Bowling Green State University Motor Vehicle Record Statement University policy requires that all driversRisk Management 1851 N. Research Drive Bowling Green, OH 43403 419-372-2127 Fax 419 acknowledge that the university endorses all applicable state motor vehicle regulations relating to driver

  17. Operating Instructions CASSEHE PUMP DRIVE UNIT

    E-Print Network [OSTI]

    Kleinfeld, David

    4 · Operating Instructions CASSEHE® PUMP DRIVE UNIT Catalog No. 72-510-000 72-510-220 PUMPING The squeezing action of rollers on tubing causes the peristaltic pumping action. The flow is proportionate to the speied of the rollers and the inside diameter of the tubing, both of which can be varied. Pumping

  18. Driving EHOs in NSTX Rob Goldston

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Driving EHOs in NSTX Rob Goldston September 8, 2010 #12;Houston, We have a Problem Lithium rises. This is not good, but it is not because the lithium is not pumping deuterium. In the absence in most respects to RWM interactions - but in rotating frame. Being examined by J-K Park and A. Boozer

  19. Safety Considerations When Driving on Rural Roads

    E-Print Network [OSTI]

    Vivoni, Enrique R.

    procedures to follow. Characteristics of rural or forest roads Extra caution is required when driving-moving vehicles, animals, debris) · Unusually steep hills or sharp curves Since help may often be difficult.Agricultural or prescribed forest burning may produce smoke on roads. Hazard: Approaching vehicles, livestock or wild animals

  20. Recent Transitions in Ethiopian Homegarden Agroforestry: Driving

    E-Print Network [OSTI]

    of the system dynamics shows that all underlying driving forces interact with each other and cause change, shrinking farm size, poverty and a new market situation and has gradually been changing towards monoculture production of khat (Catha edulis) and eucalyptus species. The consequence of the transitions on ecology

  1. QER- Comment of Electric Drive Transportation Association

    Broader source: Energy.gov [DOE]

    Please find attached the comments of the Electric Drive Transportation Association regarding the first volume of the Department of Energys QER. If you have questions about our submittal or require further information, please contact me using the information provided below. Thank you for the opportunity to comment. Genevieve Cullen

  2. SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive

    E-Print Network [OSTI]

    Rollins, Andrew M.

    1 SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive Greenville, MI 48838 MATERIAL SAFETY DATA SHEET irritating and potentially toxic fumes containing oxides of nitrogen if exposed to extreme heat in air: (Conditions to Avoid) Stable under normal use conditions and in final use concentration. Incompatibility

  3. SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive

    E-Print Network [OSTI]

    Rollins, Andrew M.

    1 SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive Greenville, MI 48838 MATERIAL SAFETY DATA SHEET. It will produce irritating and potentially toxic fumes containing oxides of nitrogen if exposed to extreme heat: (Conditions to Avoid) Stable under normal use conditions and in final use concentration. Incompatibility

  4. The making of driving cultures Jane Moeckli

    E-Print Network [OSTI]

    Lee, John D.

    and traffic safety as effects of culture. In order to understand culture's role in shaping driving behavior of culture. We argue that how the traffic safety community defines culture dictates courses of action taken traffic safety. It is our hope that these suggestions will expand the definition of culture to better

  5. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, James M. (Union Lake, MI); Sereshteh, Ahmad (Union Lake, MI)

    1988-01-01T23:59:59.000Z

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify thetorque commands applied to the motor.

  6. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, J.M.; Sereshteh, A.

    1988-08-30T23:59:59.000Z

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify the torque commands applied to the motor. 5 figs.

  7. Drive piston assembly for a valve actuator assembly

    DOE Patents [OSTI]

    Sun, Zongxuan (Troy, MI)

    2010-02-23T23:59:59.000Z

    A drive piston assembly is provided that is operable to selectively open a poppet valve. The drive piston assembly includes a cartridge defining a generally stepped bore. A drive piston is movable within the generally stepped bore and a boost sleeve is coaxially disposed with respect to the drive piston. A main fluid chamber is at least partially defined by the generally stepped bore, drive piston, and boost sleeve. First and second feedback chambers are at least partially defined by the drive piston and each are disposed at opposite ends of the drive piston. At least one of the drive piston and the boost sleeve is sufficiently configured to move within the generally stepped bore in response to fluid pressure within the main fluid chamber to selectively open the poppet valve. A valve actuator assembly and engine are also provided incorporating the disclosed drive piston assembly.

  8. Characterization of the Radiation Shielding Properties of US andRussian EVA Suits

    SciTech Connect (OSTI)

    Benton, E.R.; Benton, E.V.; Frank, A.L.

    2001-10-26T23:59:59.000Z

    Reported herein are results from the Eril Research, Inc.(ERI) participationin the NASA Johnson Space Center sponsored studycharacterizing the radiation shielding properties of the two types ofspace suit that astronauts are wearing during the EVA on-orbit assemblyof the International Space Station (ISS). Measurements using passivedetectors were carried out to assess the shielding properties of the USEMU Suit and the Russian Orlan-M suit during irradiations of the suitsand a tissue equivalent phantom to monoenergetic proton and electronbeams at the Loma Linda University Medical Center (LLUMC). Duringirradiations of 6 MeV electrons and 60 MeV protons, absorbed dose as afunction of depth was measured using TLDs exposed behind swatches of thetwo suit materials and inside the two EVA helmets. Considerable reductionin electron dosewas measured behind all suit materials in exposures to 6MeV electrons. Slowing of the proton beam in the suit materials led to anincrease in dose measured in exposures to 60 MeV protons. During 232 MeVproton irradiations, measurements were made with TLDs and CR-39 PNTDs atfive organ locations inside a tissue equivalent phantom, exposed bothwith and without the two EVA suits. The EVA helmets produce a 13 to 27percent reduction in total dose and a 0 to 25 percent reduction in doseequivalent when compared to measurements made in the phantom head alone.Differences in dose and dose equivalent between the suit and non-suitirradiations forthe lower portions of the two EVA suits tended to besmaller. Proton-induced target fragmentation was found to be asignificant source of increased dose equivalent, especially within thetwo EVA helmets, and average quality factor inside the EMU and Orlan-Mhelmets was 2 to 14 percent greater than that measured in the barephantom head.

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

    SciTech Connect (OSTI)

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

    1994-12-31T23:59:59.000Z

    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.

  10. An investigation of space suit mobility with applications to EVA operations

    E-Print Network [OSTI]

    Schmidt, Patricia Barrett, 1974-

    2001-01-01T23:59:59.000Z

    The primary aim of this thesis is to advance the current understanding of astronauts' capabilities and limitations in space-suited extravehicular activity (EVA) by compiling a detailed database of the torques needed to ...

  11. Understanding human-space suit interaction to prevent injury during extravehicular activity

    E-Print Network [OSTI]

    Anderson, Allison P. (Allison Paige)

    2014-01-01T23:59:59.000Z

    Extravehicular Activity (EVA) is a critical component of human spaceflight. Working in gas-pressurized space suits, however, causes fatigue, unnecessary energy expenditure, and injury. The problem of injury is particularly ...

  12. Development of a mechanical counter pressure Bio-Suit System for planetary exploration

    E-Print Network [OSTI]

    Sim, Zhe Liang

    2006-01-01T23:59:59.000Z

    Extra-vehicular activity (EVA) is critical for human spaceflight and particularly for human planetary exploration. The MIT Man Vehicle Laboratory is developing a Bio-Suit EVA System, based on mechanical counterpressure ...

  13. Assessment and preliminary model development of shape memory polymers mechanical counter pressure space suits

    E-Print Network [OSTI]

    Wee, Brian (Brian J.)

    2013-01-01T23:59:59.000Z

    This thesis seeks to assess the viability of a space qualified shape memory polymer (SMP) mechanical counter pressure (MCP) suit. A key development objective identified by the International Space Exploration Coordination ...

  14. Adjustable speed drive for residential applications

    SciTech Connect (OSTI)

    Jungreis, A.M.; Kelley, A.W. [North Carolina State Univ., Raleigh, NC (United States). Dept. of Electrical and Computer Engineering] [North Carolina State Univ., Raleigh, NC (United States). Dept. of Electrical and Computer Engineering

    1995-11-01T23:59:59.000Z

    This paper describes a demonstration of an adjustable speed drive suitable for use in residential applications such as compressors and fans in heat pumps, air conditioners, and refrigerators. The adjustable speed drive uses only a four-diode rectifier and a six-transistor six-diode inverter and does not require a source-frequency filter inductor or capacitor. Motor speed is adjusted with source-frequency phase control eliminating the switching loss and electromagnetic interference caused by the more commonly used high-frequency pulse-width modulation. Low source-current distortion and high power factor are obtained at a full-load operating point which is found using a parametric analysis.

  15. Integrated Inverter For Driving Multiple Electric Machines

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

    2006-04-04T23:59:59.000Z

    An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

  16. The Department of Energy Respiratory Acceptance Program for Supplied-Air Suits

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

    2004-02-04T23:59:59.000Z

    The supplied-air suits that protect DOE contractor and federal employees from exposure to harmful atmospheres and radioactive contaminants are not included in the National Institute for Occupational Safety and Health (NIOSH) certification process for respiratory protective devices. Therefore, with the awareness and acknowledgement of NIOSH and the Occupational Safety and Health Administration (OSHA), the Department established a system for acceptance testing of supplied-air suits.

  17. Driving Energy Performance with Energy Management Teams

    E-Print Network [OSTI]

    Younghein, M.; Tunnessen, W.

    2006-01-01T23:59:59.000Z

    Driving Energy Performance with Energy Management Teams Meredith Younghein ENERGY STAR Industrial Communications Mgr. U.S. Environmental Protection Agency Washington, DC ABSTRACT Companies today face an uncertain energy future. Businesses... face escalating energy prices which can erode profits. Concerns over supply reliability, and possible regulation of carbon emissions create risk. For many industries in the U.S., energy costs are equal to the cost of raw materials or even employee...

  18. Heating and current drive systems for TPX

    SciTech Connect (OSTI)

    Swain, D.; Goranson, P. [Oak Ridge National Lab., TN (United States); Halle, A. von; Bernabei, S.; Greenough, N. [Princeton Univ., NJ (United States). Plasma Physics Lab.

    1994-05-24T23:59:59.000Z

    The heating and current drive (H and CD) system proposed for the TPX tokamak will consist of ion cyclotron, neutral beam, and lower hybrid systems. It will have 17.5 MW of installed H and CD power initially, and can be upgraded to 45 MW. It will be used to explore advanced confinement and fully current-driven plasma regimes with pulse lengths of up to 1,000 s.

  19. Cone Drive Operations Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentratingRenewable Solutions LLC Jump to: navigation,AreaHigh School Wind ProjectCone Drive

  20. Energy Department Announces New Prize Challenge to Drive Down...

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

    Energy Department Announces New Prize Challenge to Drive Down Solar Costs Energy Department Announces New Prize Challenge to Drive Down Solar Costs May 20, 2014 - 12:07pm Addthis...

  1. Economical Aspects of Adjustable Speed Drives in Pumping Systems

    E-Print Network [OSTI]

    Hovstadius, G.

    Speed variations of pumps have become increasingly popular as the technology to produce variable frequency drives has progressed. Variable speed drives have many advantages compared to throttle valves when it comes to regulation of flow. They offer...

  2. Workplace Plug-in Electric Vehicle Ride and Drive

    Broader source: Energy.gov [DOE]

    Workplace plug-in electric vehicle (PEV) Ride and Drive events are one of the most effective ways to drive PEV adoption. By providing staff the opportunity to experience PEVs first hand, they can...

  3. Secrets of the Motor That Drives Archaea Revealed

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

    Secrets of the Motor That Drives Archaea Revealed Secrets of the Motor That Drives Archaea Revealed Print Thursday, 14 February 2013 00:00 An international team led by John Tainer...

  4. Indianapolis Offers a Lesson on Driving Demand | Department of...

    Energy Savers [EERE]

    Indianapolis Offers a Lesson on Driving Demand Indianapolis Offers a Lesson on Driving Demand The flier for EcoHouse, with the headline 'Save energy, save money, improve your home'...

  5. For permission to copy or to republish, contact the American Institute of Aeronautics and Astronautics, 1801 Alexander Bell Drive, Suite 500, Reston, VA, 20191-4344.

    E-Print Network [OSTI]

    Roy, Subrata

    , adsorption, wetting and electrokinetics2 . Cp Specific heat at constant pressure Specific heat ratio Mean for fluid applications like micro-pumps, micro-valves, micro-turbines, microthrusters etc. This emerging

  6. For permission to copy or to republish, contact the American Institute of Aeronautics and Astronautics, 1801 Alexander Bell Drive, Suite 500, Reston, VA, 20191-4344.

    E-Print Network [OSTI]

    Roy, Subrata

    of fluids in microchannels. Typically, mechanical devices with dimensions below 1 mm up to 1 µm are called of Mechanical Engineering Kettering University, Flint, Michigan 48504, USA Heat transfer characteristics as working fluid and the Knudsen number ranges from slip to transition regime. Presented results show

  7. 15 LAWRENCE HALL DRIVE SUITE 2 WILLIAMSTOWN MASSACHUSETTS 01267-2566 telephone (413) 597-2429 facsimile (413) 597-5000 web WCMA.WILLIAMS.EDU

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    WCMA Presents the Senior Studio Art Exhibition 11 Reasons to Become an Investment Banker May 10June 2.m.hugo@williams.edu Williamstown, Mass. The Williams College Museum of Art (WCMA) presents 11 Reasons to Become and Investment worked in a wide array of media including: oil paint, acrylic paint, oil charcoal, pastel, sculpture

  8. Fast wave current drive in DEMO

    SciTech Connect (OSTI)

    Lerche, E.; Van Eestera, D.; Messiaen, A. [Association EURATOM-Belgian State, LPP-ERM/KMS, TEC partner, Brussels (Belgium); Franke, T. [Max-Planck-Institut fr Plasmaphysik, EURATOM-Assoziation, Garching (Germany); Collaboration: EFDA-PPPT Contributors

    2014-02-12T23:59:59.000Z

    The ability to non-inductively drive a large fraction of the toroidal plasma current in magnetically confined plasmas is an essential requirement for steady state fusion reactors such as DEMO. Besides neutral beam injection (NBI), electron-cyclotron resonance heating (ECRH) and lower hybrid wave heating (LH), ion-cyclotron resonance heating (ICRH) is a promising candidate to drive current, in particular at the high temperatures expected in fusion plasmas. In this paper, the current drive (CD) efficiencies calculated with coupled ICRF wave / CD numerical codes for the DEMO-1 design case (R{sub 0}=9m, B{sub 0}=6.8T, a{sub p}=2.25m) [1] are presented. It will be shown that although promising CD efficiencies can be obtained in the usual ICRF frequency domain (20-100MHz) by shifting the dominant ion-cyclotron absorption layers to the high-field side, operation at higher frequencies (100-300MHz) has a stronger CD potential, provided the parasitic RF power absorption of the alpha particles can be minimized.

  9. On the warp drive space-time

    E-Print Network [OSTI]

    Pedro F. Gonzalez-Diaz

    2000-04-10T23:59:59.000Z

    In this paper the problem of the quantum stability of the two-dimensional warp drive spacetime moving with an apparent faster than light velocity is considered. We regard as a maximum extension beyond the event horizon of that spacetime its embedding in a three-dimensional Minkowskian space with the topology of the corresponding Misner space. It is obtained that the interior of the spaceship bubble becomes then a multiply connected nonchronal region with closed timelike curves and that the most natural vacuum allows quantum fluctuations which do not induce any divergent behaviour of the re-normalized stress-energy tensor, even on the event (Cauchy) chronology horizon. In such a case, the horizon encloses closed timelike curves only at scales close to the Planck length, so that the warp drive satisfies the Ford's negative energy-time inequality. Also found is a connection between the superluminal two-dimensional warp drive space and two-dimensional gravitational kinks. This connection allows us to generalize the considered Alcubierre metric to a standard, nonstatic metric which is only describable on two different coordinate patches

  10. FY 2014 Annual Progress Report- Electric Drive Technologies Program

    Broader source: Energy.gov [DOE]

    FY 2014 Annual Progress Report for the Electric Drive Technologies Program of the Vehicle Technologies Office, DOE/EE-1163

  11. Recent progress on lower hybrid current drive and implications for ITER

    E-Print Network [OSTI]

    Hillairet, Julien; Goniche, M; Achard, J; Armitano, A; Beckett, B; Belo, J; Berger-By, G; Corbel, E; Delpech, L; Decker, J; Dumont, R; Guilhem, D; Kazarian, F; Litaudon, X; Magne, R; Marfisi, L; Mollard, P; Namkung, W; Nilsson, E; Park, S; Peysson, Y; Preynas, M; Sharma, P K; Prou, M

    2015-01-01T23:59:59.000Z

    The sustainment of steady-state plasmas in tokamaks requires efficient current drive systems. Lower Hybrid Current Drive (LHCD) is currently the most efficient method to generate a continuous additional off-axis toroidal plasma current as well as reduce the poloidal flux consumption during the plasma current ramp-up phase. The operation of the Tore Supra ITER-like LH launcher has demonstrated the capability to couple LH power at ITER-like power densities with very low reflected power during long pulses. In addition, the installation of eight 700kW/CW klystrons at the LH transmitter has allowed increasing the total LH power in long pulse scenarios. However, in order to achieve pure stationary LH sustained plasmas, some R\\&D are needed to increase the reliability of all the systems and codes, from the RF sources to the plasma scenario prediction. The CEA/IRFM is addressing some of these issues by leading a R\\&D program towards an ITER LH system and by the validation of an integrated LH modeling suite of...

  12. Drive torque actuation in active surge control of centrifugal compressors

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    an approximation of a real compression system. 1 #12;CompressorShaft Electric drive Active surge control law Shaft (1999b) or Willems and de Jager (1999). In this study, which is on compressors with electrical drives, we propose to use the electrical drive as a means of active surge control, as depicted in Figure 1.

  13. A Hybrid Controller for Autonomous Vehicles Driving on Automated Highways #

    E-Print Network [OSTI]

    Girault, Alain

    A Hybrid Controller for Autonomous Vehicles Driving on Automated Highways # Alain Girault a a Inria the problem of the hybrid control of autonomous vehicles driving on automated highways. Vehicles to be dealt with: a vehicle driving in a single­lane highway must never collide with its leading vehicle

  14. LAPP-TECH-2013-01 DRIVE BEAM STRIPLINE BPM

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 LAPP-TECH-2013-01 DRIVE BEAM STRIPLINE BPM ELECTRONICS AND ACQUISITION. Jean-Marc Nappa, Jean- around acquisition and components tests for drive beam stripline BPM read-out. The choice of the presented stripline BPM as the drive beam position monitor is not definitive. The aim of this study

  15. International Assessment of Electric-Drive Vehicles: Policies, Markets, and Technologies

    E-Print Network [OSTI]

    Sperling, Daniel; Lipman, Timothy

    2003-01-01T23:59:59.000Z

    Assessmentof Electric-Drive Vehicles: Policies, Markets, andInternational Assessment Electric-Drive Vehicles: Policies,International Assessment Electric-Drive Vehicles Policies,

  16. Economic Assessment of Electric-Drive Vehicle Operation in California and the United States

    E-Print Network [OSTI]

    Lidicker, Jeffrey R.; Lipman, Timothy E.; Shaheen, Susan A.

    2010-01-01T23:59:59.000Z

    ECONOMIC ASSESSMENT OF ELECTRIC-DRIVE VEHICLE OPERATION INECONOMIC ASSESSMENT OF ELECTRIC-DRIVE VEHICLE OPERATION INconsumers to switch to electric-drive vehicles, including a

  17. Comparing Two Types of Magnetically- Coupled Adjustable Speed Drives with Variable Frequency Drives in Pump and Fan Applications

    E-Print Network [OSTI]

    Anderson, K. J.; Chvala, W. D.

    This paper presents the results from laboratory tests on MagnaDrive Corporations fixed-magnet magnetically-coupled adjustable speed drive (MC-ASD) and Coyote Electronics electromagnetic MC-ASD as compared to a typical variable frequency drive (VFD...

  18. PWM drive filter inductor influence on transient immunity

    SciTech Connect (OSTI)

    Wagner, V.E. [Detroit Edison, MI (United States); Strangas, E. [Michigan State Univ., East Lansing, MI (United States). Dept. of Electrical Engineering

    1995-12-31T23:59:59.000Z

    Surges of less than 200% magnitude caused by utility capacitor switching can disrupt PWM drives. In this paper, the disruption mechanism is investigated by SPICE simulation of the drive and the results are compared to field tests. An over current surge in the rectifier/filter section and dc over voltage are the most common disruption mechanisms. The drive dc filter inductor is the most important factor in capacitor transient sensitivity of the drive. A drive without the inductor or one in which the inductor is saturated by the transient is vulnerable to disruption.

  19. Oscillatory nonohomic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    Fisch, N.J.

    1984-01-01T23:59:59.000Z

    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.

  20. FreedomCAR Advanced Traction Drive Motor Development Phase I

    SciTech Connect (OSTI)

    Ley, Josh (UQM Technologies, Inc.); Lutz, Jon (UQM Technologies, Inc.)

    2006-09-01T23:59:59.000Z

    The overall objective of this program is to design and develop an advanced traction motor that will meet the FreedomCAR and Vehicle Technologies (FCVT) 2010 goals and the traction motor technical targets. The motor specifications are given in Section 1.3. Other goals of the program include providing a cost study to ensure the motor can be developed within the cost targets needed for the automotive industry. The program has focused on using materials that are both high performance and low costs such that the performance can be met and cost targets are achieved. In addition, the motor technologies and machine design features must be compatible with high volume manufacturing and able to provide high reliability, efficiency, and ruggedness while simultaneously reducing weight and volume. Weight and volume reduction will become a major factor in reducing cost, material cost being the most significant part of manufacturing cost at high volume. Many motor technology categories have been considered in the past and present for traction drive applications, including: brushed direct current (DC), PM (PM) brushless dc (BLDC), alternating current (AC) induction, switched reluctance and synchronous reluctance machines. Of these machine technologies, PM BLDC has consistently demonstrated an advantage in terms of power density and efficiency. As rare earth magnet cost has declined, total cost may also be reduced over the other technologies. Of the many different configurations of PM BLDC machines, those which incorporate power production utilizing both magnetic torque as well as reluctance torque appear to have the most promise for traction applications. There are many different PM BLDC machine configurations which employ both of these torque producing mechanisms; however, most would fall into one of two categories--some use weaker magnets and rely more heavily on reluctance torque (reluctance-dominant PM machines), others use strong PMs and supplement with reluctance torque (magnet-dominant PM machines). This report covers a trade study that was conducted in this phase I program to explore which type of machine best suits the FCVT requirements.

  1. Collaboration drives achievement in protein structure research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and UserofProtein structure research Collaboration drives

  2. Drive Less, Save More | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTanklessDOJ TitleDr. Steven Chu About Us Dr. Steven Chu -(FY)Drive

  3. Electrifying Your Drive | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTanklessDOJ TitleDr. Steven ChuEffect ofElectrifying Your Drive

  4. What Drives U.S. Gasoline Prices?

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteamYearTexas--StateWinterYearFeet)perWestern States CoalbedWhat Drives

  5. Driving Green com | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1DeringDolgeville,Massachusetts:Drax SiemensSystemsDriving Green

  6. Has Driving Come to a Halt?

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997Environment >7,992000 HighlightsHas Driving Come

  7. Driving/Idling Resources | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA andDriving Innovation at the National

  8. GenDrive Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpen EnergyBoard" form. To createResearch Groups JumpGenDrive

  9. Heat strain and heat stress for workers wearing protective suits at a hazardous waste site

    SciTech Connect (OSTI)

    Paull, J.M.; Rosenthal, F.S.

    1987-05-01T23:59:59.000Z

    In order to evaluate the effects of heat stress when full body protective suits are worn, heart rates, oral temperatures and environmental parameters were measured for five unacclimatized male workers (25-33 years of age) who performed sampling activities during hazardous waste clean-up operations. The protective ensembles included laminated PVC-Tyvec chemical resistant hood suits with rubber boots, gloves, full facepiece dual cartridge respirators and hard hats. For comparison, measurements also were performed when the men worked at a similar level of activity while they wore ordinary work clothes. A comparison of the heart rates for the men working with and without suits indicated that wearing the suits imposed a heat stress equivalent to adding 6/sup 0/ to 11/sup 0/C (11/sup 0/ to 20/sup 0/F) to the ambient WBGT index. A similar result was obtained by calculating the WBGT in the microclimate inside the suits and comparing it to the ambient WBGT. These results indicate the following: 1) there exists a significant risk of heat injury during hazardous waste work when full body protective clothing is worn, and 2) threshold limit values for heat stress established by the ACGIH must be lowered substantially before extending them to cover workers under these conditions.

  10. Well performance under solutions gas drive

    SciTech Connect (OSTI)

    Camacho-Velazquez, R.G.

    1987-01-01T23:59:59.000Z

    A fully implicit black-oil simulator was written to predict the drawdown and buildup responses for a single well under Solution Gas Drive. The model is capable of handling the following reservoir behaviors: Unfractured reservoir, Double-Porosity system, and Double Permeability-Double Porosity model of Bourdet. The accuracy of the model results is tested for both single-phase liquid flow and two-phase flow. The results presented here provide a basis for the empirical equations presented in the literature. New definitions of pseudopressure and dimensionless time are presented. By using these two definitions, the multiphase flow solutions correlate with the constant rate liquid flow solution for both transient and boundary-dominated flow. For pressure buildup tests, an analogue for the liquid solution is constructed from the drawdown pseudopressure, similar to the reservoir integral of J. Jones. The utility of using the producing gas-oil ration at shut in to compute pseudopressures and pseudotimes is documented. The influence of pressure level and skin factor on the Inflow Performance Relationship (IPR) of wells producing solution gas drive systems is examined. A new definition of flow efficiency that is based on the structure of the deliverability equations is proposed. This definition avoids problems that result when the presently available methods are applied to heavily stimulated wells. The need for using pseudopressures to analyze well test data for fractured reservoirs is shown. Expressions to compute sandface saturations for fractured systems are presented.

  11. Electric-drive tractability indicator integrated in hybrid electric vehicle tachometer

    DOE Patents [OSTI]

    Tamai, Goro; Zhou, Jing; Weslati, Feisel

    2014-09-02T23:59:59.000Z

    An indicator, system and method of indicating electric drive usability in a hybrid electric vehicle. A tachometer is used that includes a display having an all-electric drive portion and a hybrid drive portion. The all-electric drive portion and the hybrid drive portion share a first boundary which indicates a minimum electric drive usability and a beginning of hybrid drive operation of the vehicle. The indicated level of electric drive usability is derived from at least one of a percent battery discharge, a percent maximum torque provided by the electric drive, and a percent electric drive to hybrid drive operating cost for the hybrid electric vehicle.

  12. Traction drive automatic transmission for gas turbine engine driveline

    DOE Patents [OSTI]

    Carriere, Donald L. (Livonia, MI)

    1984-01-01T23:59:59.000Z

    A transaxle driveline for a wheeled vehicle has a high speed turbine engine and a torque splitting gearset that includes a traction drive unit and a torque converter on a common axis transversely arranged with respect to the longitudinal centerline of the vehicle. The drive wheels of the vehicle are mounted on a shaft parallel to the turbine shaft and carry a final drive gearset for driving the axle shafts. A second embodiment of the final drive gearing produces an overdrive ratio between the output of the first gearset and the axle shafts. A continuously variable range of speed ratios is produced by varying the position of the drive rollers of the traction unit. After starting the vehicle from rest, the transmission is set for operation in the high speed range by engaging a first lockup clutch that joins the torque converter impeller to the turbine for operation as a hydraulic coupling.

  13. Vehicle drive module having improved terminal design

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Radosevich, Lawrence D.; Phillips, Mark G.; Kehl, Dennis L.; Kaishian, Steven C.; Kannenberg, Daniel G.

    2006-04-25T23:59:59.000Z

    A terminal structure for vehicle drive power electronics circuits reduces the need for a DC bus and thereby the incidence of parasitic inductance. The structure is secured to a support that may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as by direct contact between the terminal assembly and AC and DC circuit components. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  14. Vehicle drive module having improved cooling configuration

    DOE Patents [OSTI]

    Radosevich, Lawrence D.; Meyer, Andreas A.; Kannenberg, Daniel G.; Kaishian, Steven C.; Beihoff, Bruce C.

    2007-02-13T23:59:59.000Z

    An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as between component layers and between the circuits and the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  15. Vehicle drive module having improved EMI shielding

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Kehl, Dennis L.; Gettelfinger, Lee A.; Kaishian, Steven C.; Phillips, Mark G.; Radosevich, Lawrence D.

    2006-11-28T23:59:59.000Z

    EMI shielding in an electric vehicle drive is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  16. Application platform suite software vendors' strategies in standards driven industry networks

    E-Print Network [OSTI]

    Phua, Boon Chung, 1969-

    2004-01-01T23:59:59.000Z

    The emergence of industry standards often has disruptive impacts on the behavior of markets. It can drive commoditization, substitution and convergence. It also changes the industry structure creating new business models ...

  17. Cooling Tower Energy Conservation Through Hydraulic Fan Drives

    E-Print Network [OSTI]

    Dickerson, J.

    Fan Drive Eliminates These Problems from the Drive Train. The electric motor is at ground level; close coupled to a hydraulic pump, filters and oil reservoir. Hydraulic lines bring oil flow to the lightweight hydraulic motor mounted at the fan... Tower Fan Drives Are Many: It removes the hazard of costly fan wrecks and shaft coupling breakage. It eliminates gearbox maintenance, breakdown or replacement. The electric motor is mounted with the reservoir and pump at ground level for ease...

  18. A motor drive control system for the Lidar Polarimeter

    E-Print Network [OSTI]

    Leung, Waiming

    1977-01-01T23:59:59.000Z

    A MOTOR DRIVE CONTROL SYSTEM FOR THE LIDAR POLARIMETER A Thesis by Waiming Leung Submitted to the Graduate College of Texas A/M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCF, May 1977 Major... Subject: Electrical Engineering A MOTOR DRIVE CONTROL SYSTEM FOR THE LIDAR POLARIMETER A Thesis by Waiming Leung Approved as to style and content by: Chairman o Comm' ee ea o epartment Member Mem er May 1977 ABSTRACT A Motor Drive Control...

  19. Electrical motor/generator drive apparatus and method

    DOE Patents [OSTI]

    Su, Gui Jia

    2013-02-12T23:59:59.000Z

    The present disclosure includes electrical motor/generator drive systems and methods that significantly reduce inverter direct-current (DC) bus ripple currents and thus the volume and cost of a capacitor. The drive methodology is based on a segmented drive system that does not add switches or passive components but involves reconfiguring inverter switches and motor stator winding connections in a way that allows the formation of multiple, independent drive units and the use of simple alternated switching and optimized Pulse Width Modulation (PWM) schemes to eliminate or significantly reduce the capacitor ripple current.

  20. High-Temperature, Air-Cooled Traction Drive Inverter Packaging

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

    Air-Cooled Traction Drive Inverter Packaging Madhu Chinthavali Oak Ridge National Laboratory June 10, 2010 Project ID: APE025 This presentation does not contain any proprietary,...

  1. EV Everywhere Workshop: Traction Drive Systems Breakout Group...

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

    the EV Everywhere Grand Challenge Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL....

  2. EV Everywhere Grand Challenge Introduction for Electric Drive...

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

    at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL....

  3. ac motor drives: Topics by E-print Network

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

    - TxSpace Summary: and Quantitative Account Gear-Train Servo Error Types. IV. DC VARIABLE SPEED MOTOR DRIVE DESIGN CONSIDERATIONS AND RFALIZATION. Introduction. 27 29 30...

  4. ac motor drive: Topics by E-print Network

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

    - TxSpace Summary: and Quantitative Account Gear-Train Servo Error Types. IV. DC VARIABLE SPEED MOTOR DRIVE DESIGN CONSIDERATIONS AND RFALIZATION. Introduction. 27 29 30...

  5. Electric Drive and Advanced Battery and Components Testbed (EDAB...

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

    and Peer Evaluation Meeting vss033carlson2012o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office...

  6. Electric Drive Vehicle Level Control Development Under Various...

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

    3 The objective is to develop the entire vehicle thermal management system for two electric drive vehicles (HEVs, PHEVs). Limited battery power and low engine efficiency at...

  7. US DRIVE Materials Technical Team Roadmap | Department of Energy

    Energy Savers [EERE]

    Materials Technical Team Roadmap US DRIVE Materials Technical Team Roadmap The Materials Technical Team (MTT) focuses primarily on reducing the mass of structural systems such as...

  8. Supercomputers Drive Discovery of Materials for More Efficient...

    Office of Science (SC) Website

    Supercomputers Drive Discovery of Materials for More Efficient Carbon Capture Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights...

  9. Driving the Future Argonne's vehicle systems reseArch

    E-Print Network [OSTI]

    Kemner, Ken

    and commercialization of next- generation vehicles. APRF engineers use the facility's two-wheel drive (2WD) and four, drivetrain components, control strategies and

  10. Using Partnerships to Drive Demand and Provide Services in Communities...

    Energy Savers [EERE]

    and Discussion Summary More Documents & Publications Strategies for Marketing and Driving Demand for Commercial Financing Products Information Technology Tools for Multifamily...

  11. Strategies for Marketing and Driving Demand for Commercial Financing...

    Energy Savers [EERE]

    Slides and Discussion Summary More Documents & Publications Using Partnerships to Drive Demand and Provide Services in Communities Financial Vehicles within an Integrated Energy...

  12. US DRIVE Electrochemical Energy Storage Technical Team Roadmap...

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

    This U.S. DRIVE electrochemical energy storage roadmap describes ongoing and planned efforts to develop electrochemical energy storage technologies for plug-in electric vehicles...

  13. The Drive for Energy Diversity and Sustainability: The Impact...

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

    Diversity and Sustainability: The Impact on Transportation Fuels and Propulsion System Portfolios The Drive for Energy Diversity and Sustainability: The Impact on Transportation...

  14. Defining Real World Drive Cycles to Support APRF Technology Evaluation...

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

    DOE strategic goalsbarriers addressed - F: Constant advances in technology * Fuel energy consumption variability of different technologies to driving variation - D: Lack of...

  15. Phonon localization drives nanoregions in a relaxor ferroelectric...

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

    localization drives nanoregions in a relaxor ferroelectric April 11, 2014 This inelastic neutron scattering spectrum shows the localizing modes (LMs) between the transverse optic...

  16. Accelerating the Electrification of U.S. Drive Trains: Ready...

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

    More Documents & Publications Accelerating the Electrification of U.S. Drive Trains: Ready and Affordable Technology Solutions for Domestically Manufactured Advanced...

  17. US DRIVE Vehicle Systems and Analysis Technical Team Roadmap...

    Energy Savers [EERE]

    Vehicle Systems and Analysis Technical Team Roadmap US DRIVE Vehicle Systems and Analysis Technical Team Roadmap VSATT provides the analytic support and subsystem characterizations...

  18. A benchmark suite with virtualized reality models for supporting tracking evaluation and data set generation

    E-Print Network [OSTI]

    Boyer, Edmond

    ) Benchmark resources Sharing of benchmarking results A : Datasets GenerateA benchmark suite with virtualized reality models for supporting tracking evaluation and data set laurence.nigay@imag.fr Takeshi Kurata AIST, Japan t.kurata@aist.go.jp Abstract We describe a benchmark

  19. How kelp produce blade shapes suited to different flow regimes: A new wrinkle

    E-Print Network [OSTI]

    Mahadevan, L.

    How kelp produce blade shapes suited to different flow regimes: A new wrinkle M. A. R. Koehl,1,? W bull kelp, Nereocystis luetkeana, to investigate how these ecomorphological differences are produced, strap-like blades of kelp from habitats with rapid flow collapse into streamlined bundles and flutter

  20. Aviation Safety Reporting System 625 Ellis St. Suite 305 Mountain View California 94043

    E-Print Network [OSTI]

    of the event. Those who work to improve aviation safety have long recognized that incident reporting fromAviation Safety Reporting System 625 Ellis St. Suite 305 Mountain View California 94043 Cabin Crew Safety Information Article Presented at the 17th International Aircraft Cabin Safety Symposium by Linda

  1. COLUMBIA RIVER INTER-TRIBAL FISH COMMISSION 700 NE Multnomah Street, Suite 1200

    E-Print Network [OSTI]

    COLUMBIA RIVER INTER-TRIBAL FISH COMMISSION 700 NE Multnomah Street, Suite 1200 Portland, Oregon 97232 F (503) 235-4228 (503) 238-0667 F (503) 235-4228 www.critfc.org Putting fish back in the rivers and protecting the watersheds where fish live September 17, 2013 Bill Bradbury, Chairman Northwest Power

  2. Constructed Wetlands Research Group meeting Forth Suite, SEPA Riccarton Office, Edinburgh EH14 4AP

    E-Print Network [OSTI]

    Heal, Kate

    , to address diffuse pollution (particularly hydrocarbons) associated with the nearby Brucefield Industry Park1 Minutes of Constructed Wetlands Research Group meeting Forth Suite, SEPA Riccarton Office. It was set up several years ago, particularly to support the implementation of constructed farm wetlands

  3. The Impact of Test Suite Granularity on the CostEffectiveness of Regression Testing

    E-Print Network [OSTI]

    Rothermel, Gregg

    The Impact of Test Suite Granularity on the Cost­Effectiveness of Regression Testing Gregg,pkallakug@cse.unl.edu ABSTRACT Regression testing is an expensive testing process used to validate software following modi#12;cations. The cost-e#11;ective- ness of regression testing techniques varies with characteris- tics of test

  4. On Test Suite Composition and Cost-Effective Regression Testing Gregg Rothermel

    E-Print Network [OSTI]

    Rothermel, Gregg

    On Test Suite Composition and Cost-Effective Regression Testing Gregg Rothermel , Sebastian Elbaum}@cse.unl.edu August 31, 2004 Abstract Regression testing is an expensive testing process used to re-validate software as it evolves. Various methodologies for improving regression testing processes have been explored, but the cost

  5. The Impact of Test Suite Granularity on the Cost-Effectiveness of Regression Testing

    E-Print Network [OSTI]

    Rothermel, Gregg

    The Impact of Test Suite Granularity on the Cost-Effectiveness of Regression Testing Gregg,pkallakug@cse.unl.edu ABSTRACT Regression testing is an expensive testing process used to validate software following modi cations. The cost-e ective- ness of regression testing techniques varies with characteris- tics of test

  6. The Impact of Test Suite Granularity on the CostEffectiveness of Regression Testing

    E-Print Network [OSTI]

    Rothermel, Gregg

    The Impact of Test Suite Granularity on the Cost­Effectiveness of Regression Testing Gregg,pkallakug@cse.unl.edu ABSTRACT Regression testing is an expensive testing process used to validate software following modifications. The cost­effective­ ness of regression testing techniques varies with characteris­ tics of test

  7. On Test Suite Composition and Cost-Effective Regression Testing. Gregg Rothermel

    E-Print Network [OSTI]

    Rothermel, Gregg

    On Test Suite Composition and Cost-Effective Regression Testing. Gregg Rothermel , Sebastian Elbaum}@cse.unl.edu August 30, 2003 Abstract Regression testing is an expensive testing process used to re-validate software as it evolves. Various methodologies for improving regression testing processes have been explored, but the cost

  8. Test Factoring: Focusing Test Suites for the Task at Hand Michael D. Ernst, research advisor

    E-Print Network [OSTI]

    Liskov, Barbara

    Test Factoring: Focusing Test Suites for the Task at Hand David Saff Michael D. Ernst, research and Subject Descriptors: D.2.5 (Testing and Debug- ging): Testing tools General Terms: Algorithms, Design, Performance, Verification Keywords: test factoring, mock objects, unit testing 1. Problem: slow, unfocused

  9. Test Factoring: Focusing Test Suites for the Task at Hand Michael D. Ernst, research advisor

    E-Print Network [OSTI]

    Liskov, Barbara

    Test Factoring: Focusing Test Suites for the Task at Hand David Saff Michael D. Ernst, research and Subject Descriptors: D.2.5 (Testing and Debug­ ging): Testing tools General Terms: Algorithms, Design, Performance, Verification Keywords: test factoring, mock objects, unit testing 1. Problem: slow, unfocused

  10. Two Distinctive Granite Suites in the SW Bohemian Massif and their Record of

    E-Print Network [OSTI]

    Siebel, Wolfgang

    Two Distinctive Granite Suites in the SW Bohemian Massif and their Record of Emplacement types of gneisses, migmatites and granites dominate the out- crops of the Bavarian Forest characteristics ofa crustal root zone. Fourteen granite intrusions from this area have been dated by the single

  11. Two Distinctive Granite Suites in the Southwestern Bohemian Massif: Reply to

    E-Print Network [OSTI]

    Siebel, Wolfgang

    Two Distinctive Granite Suites in the Southwestern Bohemian Massif: Reply to F. Finger and M. Rene geochemical and geochronological analyses of mainly crustal-derived late Variscan granites (328^321 Ma) from the Bavarian Forest, Moldanubian unit, Bohemian Massif. As an important observation, a high Ca^Sr^Y granite

  12. 7900 SE 28th Street, Suite 200 Mercer, Island, WA 98040-2970

    E-Print Network [OSTI]

    7900 SE 28th Street, Suite 200 Mercer, Island, WA 98040-2970 v 206.236.7200 f 206.236.3019 www-standing rivalries over the distribution of the Northwest's premiere asset. It will allow the customers to apply to acquire new generation assets. This conclusion, also reached by the Comprehensive Review of the Northwest

  13. Analysis of national pay-as-you-drive insurance systems and other variable driving charges

    SciTech Connect (OSTI)

    Wenzel, T.

    1995-07-01T23:59:59.000Z

    Under Pay as You Drive insurance (PAYD), drivers would pay part of their automobile insurance premium as a per-gallon surcharge every time they filled their gas tank. By transfering a portion of the cost of owning a vehicle from a fixed cost to a variable cost, PAYD would discourage driving. PAYD has been proposed recently in California as a means of reforming how auto insurance is provided. PAYD proponents claim that, by forcing drivers to purchase at least part of their insurance every time they refuel their car, PAYD would reduce or eliminate the need for uninsured motorist coverage. Some versions of PAYD proposed in California have been combined with a no-fault insurance system, with the intention of further reducing premiums for the average driver. Other states have proposed PAYD systems that would base insurance premiums on annual miles driven. In this report we discuss some of the qualitative issues surrounding adoption of PAYD and other policies that would convert other fixed costs of driving (vehicle registration, safety/emission control system inspection, and driver license renewal) to variable costs. We examine the effects of these policies on two sets of objectives: objectives related to auto insurance reform, and those related to reducing fuel consumption, CO{sub 2} emissions, and vehicle miles traveled. We pay particular attention to the first objective, insurance reform, since this has generated the most interest in PAYD to date, at least at the state level.

  14. Conceptual Design - Polar Drive Ignition Campaign

    SciTech Connect (OSTI)

    Hansen, R

    2012-04-05T23:59:59.000Z

    The Laboratory for Laser Energetics (LLE) at the University of Rochester is proposing a collaborative effort with Lawrence Livermore National Laboratory (LLNL), Los Alamos National Laboratories (LANL), the Naval Research Laboratory (NRL), and General Atomics (GA) with the goal of developing a cryogenic polar drive (PD) ignition platform on the National Ignition Facility (NIF). The scope of this proposed project requires close discourse among theorists, experimentalists, and laser and system engineers. This document describes how this proposed project can be broken into a series of parallel independent activities that, if implemented, could deliver this goal in the 2017 timeframe. This Conceptual Design document is arranged into two sections: mission need and design requirements. Design requirements are divided into four subsystems: (1) A point design that details the necessary target specifications and laser pulse requirements; (2) The beam smoothing subsystem that describes the MultiFM 1D smoothing by spectral dispersion (SSD); (3) New optical elements that include continuous phase plates (CPP's) and distributed polarization rotators (DPR's); and (4) The cryogenic target handling and insertion subsystem, which includes the design, fabrication, testing, and deployment of a dedicated PD ignition target insertion cryostat (PD-ITIC). This document includes appendices covering: the primary criteria and functional requirements, the system design requirements, the work breakdown structure, the target point design, the experimental implementation plan, the theoretical unknowns and technical implementation risks, the estimated cost and schedule, the development plan for the DPR's, the development plan for MultiFM 1D SSD, and a list of acronym definitions. While work on the facility modifications required for PD ignition has been in progress for some time, some of the technical details required to define the specific modifications for a Conceptual Design Review (CDR) remain to be defined. In all cases, the facility modifications represent functional changes to existing systems or capabilities. The bulk of the scope yet to be identified is associated with the DPR's and MultiFM beam smoothing. Detailed development plans for these two subsystems are provided in Appendices H and I; additional discussion of subsystem requirements based on the physics of PD ignition is given in Section 3. Accordingly, LLE will work closely with LLNL to develop detailed conceptual designs for the PD-specific facility modifications, including assessments of the operational impact of implementation (e.g., changing optics for direct rather than indirect-drive illumination and swapping from a hohlraum-based ITIC to one that supports PD). Furthermore, the experimental implementation plan represents the current best understanding of the experimental campaigns required to achieve PD ignition. This plan will evolve based on the lessons learned from the National Ignition Campaign (NIC) and ongoing indirect-drive ignition experiments. The plan does not take the operational realities of the PD configuration into account; configuration planning for the proposed PD experiments is beyond the scope of this document.

  15. Tape-Drive Based Plasma Mirror

    SciTech Connect (OSTI)

    Sokollik, Thomas; Shiraishi, Satomi; Osterhoff, Jens; Evans, Eugene; Gonsalves, Anthony; Nakamura, Kei; vanTilborg, Jeroen; Lin, Chen; Toth, Csaba; Leemans, Wim

    2011-07-22T23:59:59.000Z

    We present experimental results on a tape-drive based plasma mirror which could be used for a compact coupling of a laser beam into a staged laser driven electron accelerator. This novel kind of plasma mirror is suitable for high repetition rates and for high number of laser shots. In order to design a compact, staged laser plasma based accelerator or collider [1], the coupling of the laser beam into the different stages represents one of the key issues. To limit the spatial foot print and thus to realize a high overall acceleration gradient, a concept has to be found which realizes this in-coupling within a few centimeters (cf. Fig 1). The fluence of the laser pulse several centimeters away from the acceleration stage (focus) exceeds the damage threshold of any available mirror coating. Therefore, in reference [2] a plasma mirror was suggested for this purpose. We present experiments on a tape-drive based plasma mirror which could be used to reflect the focused laser beam into the acceleration stage. Plasma mirrors composed of antireflection coated glass substrates are usually used to improve the temporal laser contrast of laser pulses by several orders of magnitudes [3,4]. This is particularly important for laser interaction with solid matter, such as ion acceleration [5,6] and high harmonic generation on surfaces [7]. Therefore, the laser pulse is weekly focused onto a substrate. The main pulse generates a plasma and is reflected at the critical surface, whereas the low intensity pre-pulse (mainly the Amplified Spontaneous Emission pedestal) will be transmitted through the substrate before the mirror has been triggered. Several publications [3,4] demonstrate a conservation of the spatial beam quality and a reflectivity of about 70 %. The drawback of this technique is the limited repetition rate since for every shot a fresh surface has to be provided. In the past years several novel approaches for high repetition rate plasma mirrors have been developed [2, 8]. Nevertheless, for the staged accelerator scheme a second important requirement has to be considered. Since the electron beam has to propagate through the mirror, the thickness of the substrate has to be as thin as possible to reduce the distortion of the electron beam. A tape of only several micrometer thickness can overcome these disadvantages. It can be used with a sufficient repetition rate while it allows the electron beam to propagate through with a minimum of scattering.

  16. Working on new gas turbine cycle for heat pump drive

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Working on new gas turbine cycle for heat pump drive FILE COPY TAP By Irwin Stambler, Field Editor, is sized for a 10-ton heat pump system - will be scaled to power a commercial product line ranging from 7 of the cycle- as a heat pump drive for commercial installations. Company is testing prototype gas turbine

  17. A Driving Simulator for Teaching Embedded Automotive Control Applications

    E-Print Network [OSTI]

    Gillespie, Brent

    A Driving Simulator for Teaching Embedded Automotive Control Applications Paul G. Griffiths component uses a typical automotive power- train micro-controller and teaches topics in system dynamics students build a fixed-based driving simulator to test advanced automotive control system designs

  18. 1851 N Research Drive Bowling Green, Ohio 43403-0201

    E-Print Network [OSTI]

    Moore, Paul A.

    hired from a temporary agency is not considered an employee of Bowling Green State University1851 N Research Drive Bowling Green, Ohio 43403-0201 419-372-8421 Email: ohr@bgsu.edu Fax 419 Print #12;1851 N Research Drive Bowling Green, Ohio 43403-0201 419-372-8421 Email: ohr@bgsu.edu Fax 419

  19. EFFICIENCY AND SCALING OF CURRENT DRIVE AND REFUELLING

    E-Print Network [OSTI]

    Brown, Michael R.

    EFFICIENCY AND SCALING OF CURRENT DRIVE AND REFUELLING BY SPHEROMAK INJEXTIQN INTO A TOKAMAK M ABSTRACT. The first measurements of current drive (refluxing) and refuelling by spheromak injection injection, and refuelling is attributed to the rapid incorporation of the dense spheromak plasma

  20. Model Based Vehicle Tracking for Autonomous Driving in Urban Environments

    E-Print Network [OSTI]

    Model Based Vehicle Tracking for Autonomous Driving in Urban Environments Anna Petrovskaya environments. This paper describes moving vehicle tracking module that we developed for our autonomous driving in this area. DARPA has organized a series of competitions for autonomous vehicles. In 2005, autonomous

  1. GNSS Driving Innovation in the Geospatial Industry/Community

    E-Print Network [OSTI]

    Sekercioglu, Y. Ahmet

    GNSS Driving Innovation in the Geospatial Industry/Community Don Grant Associate Professor in Geospatial Science, RMIT University GNSS Futures UNSW, Sydney, 7-8 July 2014 #12;Outline Does my topic;So is this even the right topic? Is GNSS driving geospatial innovation? Or are geospatial

  2. A Hybrid Controller for Autonomous Vehicles Driving on Automated Highways

    E-Print Network [OSTI]

    Girault, Alain

    A Hybrid Controller for Autonomous Vehicles Driving on Automated Highways Alain Girault a aInria Rh of the hybrid control of autonomous vehicles driving on automated highways. Vehicles are autonomous, so they do not commu- nicate with each other nor with the infrastructure. Two problems have to be dealt with: a vehicle

  3. Does economic development drive the fertility rebound in OECD countries?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Does economic development drive the fertility rebound in OECD countries? Angela Luci, Olivier Thévenon 167 2010 #12;2 #12;3 Does economic development drive the fertility rebound in OECD countries.thevenon@ined.fr We examine how far changes in fertility trends are related to ongoing economic development in OECD

  4. Alcohol / drug-impaired driving Studying blood alcohol concentration

    E-Print Network [OSTI]

    . Traffic safety culture Few additional safety improvements can be expected from engineering or enforcement about driving, or, creating a traffic safety culture. #12; and driving safety courses. Safer vehicle occupants The CenTer for TransporTaTion safeTy What was a driver

  5. Alcohol / drug-impaired driving Studying blood alcohol concentration

    E-Print Network [OSTI]

    . Traffic safety culture Few additional safety improvements can be expected from engineering or enforcement about driving, or, creating a traffic safety culture. http://tti.tamu.edu/cts/ #12; and driving safety courses. Safer vehicle occupants The CenTer for TransporTaTion safeTy What was a driver

  6. Active surge control of centrifugal compressors using drive torque

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    the operating range of the machine, and ef- ficiency is limited. Usually a recycle line around the compressor recycling, and there is a potential for reduced energy consumption of the compressor. Electric driveActive surge control of centrifugal compressors using drive torque Jan Tommy Gravdahl , Olav

  7. Specification and Analysis of the AER/NCA Active Network Protocol Suite in Real-Time Maude

    E-Print Network [OSTI]

    ?lveczky, Peter Csaba

    Specification and Analysis of the AER/NCA Active Network Protocol Suite in Real-Time Maude Peter-Time Maude tool and the Maude formal methodology to the specification and analysis of the AER/NCA suite-sensitive behavior, the presence of probabilistic algorithms, and the composability of its components, AER/NCA poses

  8. Stabilization of unstable periodic orbits in dc drives

    E-Print Network [OSTI]

    Krishnendu Chakrabarty; Urmila Kar

    2014-02-22T23:59:59.000Z

    Electric drive using dc shunt motor or permanent magnet dc (PMDC) motor as prime mover exhibits bifurcation and chaos. The characteristics of dc shunt and PMDC motors are linear in nature. These motors are controlled by pulse width modulation (PWM) technique with the help of semiconductor switches. These switches are nonlinear element that introduces nonlinear characteristics in the drive. Any nonlinear system can exhibit bifurcation and chaos. dc shunt or PMDC drives show normal behavior with certain range of parameter values. It is also observed that these drive show chaos for significantly large ranges of parameter values. In this paper we present a method for controlling chaos applicable to dc shunt and PMDC drives. The results of numerical investigation are presented.

  9. Advanced insulated gate bipolar transistor gate drive

    DOE Patents [OSTI]

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

    2009-08-04T23:59:59.000Z

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

  10. Base drive and overlap protection circuit

    DOE Patents [OSTI]

    Gritter, David J. (Southfield, MI)

    1983-01-01T23:59:59.000Z

    An inverter (34) which provides power to an A. C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A. C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A. C. machine is optimized. The control circuit includes a microcomputer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). A base drive and overlap protection circuit is included to insure that both transistors of a complimentary pair are not conducting at the same time. In its preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack (32) and a three-phase induction motor (18).

  11. The Natario Warp Drive using Lorentz Boosts according to the Harold White Spacetime Metric potential .

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Natario Warp Drive using Lorentz Boosts according to the Harold White Spacetime Metric Warp Drives are solutions of the Einstein Field Equations that allows superluminal travel within drive discovered in 1994 and the Natario warp drive discovered in 2001.The warp drive seems to be very

  12. The Carmen-Suite: Maya Plisetskaya Challenging Soviet Culture and Policy

    E-Print Network [OSTI]

    Kalashnikova, Anna

    2014-04-24T23:59:59.000Z

    for the degree of MASTER OF ARTS Chair of Committee, Judith Hamera Committee Members, Jayson Beaster-Jones Olga Cooke Head of Department, Donnalee Dox May 2014 Major Subject: Performance Studies Copyright 2014 Anna Kalashnikova ii ABSTRACT... Cold War, research into the artistic, cultural and political significance of the 1967 Carmen-Suite may be of particular significance. iii ACKNOWLEDGEMENTS I would like to thank my committee chair, Dr. Judith Hamera for her passion, interest...

  13. Multi-stage axial-flux PM machine for wheel direct drive

    SciTech Connect (OSTI)

    Caricchi, F.; Crescimbini, F.; Mezzetti, F.; Santini, E. [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering

    1995-12-31T23:59:59.000Z

    The design of direct-driven wheel motors must comply with diameter restriction due to housing the motor in a wheel rim and allow the achievement of very high torque density and overload capability. Slotless axial-flux permanent magnet machines (AFPMs) prove to be one best candidate for application in electric vehicles as direct-drive wheel motors, as in comparison with conventional machines they allow designs with higher compactness, lightness and efficiency. The paper presents a newly-conceived AFPM which has multi-stage structure and water-cooled ironless stator. In the proposed new topology of the machine the space formerly occupied by the toroidal core becomes a water duct, which removes heat directly from the interior surface of the stator winding. The high efficiency of the machine cooling arrangement allows long-term 100% overload operation and great reduction of the machine weight. The multistage structure of the machine is suited to overcome the restriction on the machine diameter and meet the torque required at the wheel shaft. The paper gives guidelines for the design of a multi-stage AFPM with water-cooled ironless stator, and describes characteristics of a two-stage prototype machine rated 220 Nm, 1,100 rpm.

  14. Towards the Integration of APECS and VE-Suite for Virtual Power Plant Co-Simulation

    SciTech Connect (OSTI)

    Zitney, S.E.; McCorkle, D. (Iowa State University, Ames, IA); Yang, C. (Reaction Engineering International, Salt Lake City, UT); Jordan, T.; Swensen, D. (Reaction Engineering International, Salt Lake City, UT); Bryden, M. (Iowa State University, Ames, IA)

    2007-05-01T23:59:59.000Z

    Process modeling and simulation tools are widely used for the design and operation of advanced power generation systems. These tools enable engineers to solve the critical process systems engineering problems that arise throughout the lifecycle of a power plant, such as designing a new process, troubleshooting a process unit or optimizing operations of the full process. To analyze the impact of complex thermal and fluid flow phenomena on overall power plant performance, the Department of Energys (DOE) National Energy Technology Laboratory (NETL) has developed the Advanced Process Engineering Co-Simulator (APECS). The APECS system is an integrated software suite that combines process simulation (e.g., Aspen Plus) and high-fidelity equipment simulations such as those based on computational fluid dynamics (CFD), together with advanced analysis capabilities including case studies, sensitivity analysis, stochastic simulation for risk/uncertainty analysis, and multi-objective optimization. In this paper we discuss the initial phases of the integration of the APECS system with the immersive and interactive virtual engineering software, VE-Suite, developed at Iowa State University and Ames Laboratory. VE-Suite uses the ActiveX (OLE Automation) controls in the Aspen Plus process simulator wrapped by the CASI library developed by Reaction Engineering International to run process/CFD co-simulations and query for results. This integration represents a necessary step in the development of virtual power plant co-simulations that will ultimately reduce the time, cost, and technical risk of developing advanced power generation systems.

  15. The application of soft X-ray microscopy to the in-situ analysis of sporopollenin/sporinite in a rank variable suite of organic rich sediments

    SciTech Connect (OSTI)

    Cody, G.D.; Botto, R.E. [Argonne National Lab., IL (United States). Chemistry Div.; Ade, H. [North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics; Wirick, S. [State Univ. of New York, Stony Brook, NY (United States). Dept. of Physics

    1997-07-01T23:59:59.000Z

    Soft X-ray imaging and carbon near edge absorption fine structure spectroscopy (C-NEXAFS) has been used for the in-situ analysis of sporinite in a rank variable suite of organic rich sediments extending from recent up to high volatile A bituminous coal. The acquisition of chemically based images (contrast based on the 1s - 1{pi}* transition of unsaturated carbon), revealed a homogeneous chemical structure in the spore exine. C-NEXAFS microanalysis indicates chemical structural evolution in sporopollenin/sporinite with increases in maturation. The most significant change in the C-NEXAFS spectrum is an increase in unsaturated carbon, presumably aromatic, with rank. The rate of aromatization in sporinite exceeds that of the surrounding vitrinite. Increases in the concentration of unsaturated carbon are compensated by losses of aliphatic and hydroxylated aliphatic carbon components. Carboxyl groups are present in low and variable concentrations. Absorption due to carboxyl persists in the most mature specimen in this series, a high volatile A rank coal. The reactions which drive sporopollenin chemical structural evolution during diagenesis presumably involve dehydration, Diels-Alder cyclo-addition, and dehydrogenation reactions which ultimately lead to a progressively aromatized bio/geopolymer.

  16. Base drive circuit for a four-terminal power Darlington

    DOE Patents [OSTI]

    Lee, Fred C. (Blacksburg, VA); Carter, Roy A. (Salem, VA)

    1983-01-01T23:59:59.000Z

    A high power switching circuit which utilizes a four-terminal Darlington transistor block to improve switching speed, particularly in rapid turn-off. Two independent reverse drive currents are utilized during turn off in order to expel the minority carriers of the Darlington pair at their own charge sweep-out rate. The reverse drive current may be provided by a current transformer, the secondary of which is tapped to the base terminal of the power stage of the Darlington block. In one application, the switching circuit is used in each power switching element in a chopper-inverter drive of an electric vehicle propulsion system.

  17. Interactions between Electric-drive Vehicles and the Power Sector in California

    E-Print Network [OSTI]

    McCarthy, Ryan; Yang, Christopher; Ogden, Joan M.

    2009-01-01T23:59:59.000Z

    2007) Impacts of Electric-drive Vehicles on California'sInteractions between electric-drive vehicles and the powerin emissions found for electric- drive vehicles is a result

  18. Simulation Evaluation of Green Driving Strategies Based on Inter-Vehicle Communications

    E-Print Network [OSTI]

    Yang, Hao; Yuan, Daji; Jin, W L; Saphores, Jean-Daniel M

    2010-01-01T23:59:59.000Z

    green driving strategies for different market penetration rates and communicationGreen Driving Strategies Based on Inter-Vehicle CommunicationsGREEN DRIVING STRATEGIES BASED ON INTER-VEHICLE COMMUNICATIONS

  19. Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research...

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

    Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research...

  20. Characterizing the acoustic noise generated by hard disk drives and a scheme for detecting noisy hard drives

    E-Print Network [OSTI]

    Kim, Seuk Bo

    1992-01-01T23:59:59.000Z

    of the requirements for the degree of MASTER OF SCIENCE August 1992 Major Subject: Electrical Engineering s nah7 CHARACTERIZING THE ACOUSTIC NOISE GENERATED BY HARD DISK DRIVES AND A SCHEME FOR DETECTING NOISY HARD DRIVES A Thesis by SEUK BO KIM Approved... 48 48 49 52 53 55 APPENDIX A 58 VITA LIST OF TABLES TABLE Page I Disk Drive Sample Set 16 II Subjective Human Response: Original Noise 22 IH Leq Measured by MIC1 IV Leq Measured by ACC V Leq Grouping of Tv o Sensors 24 26 26 VI...

  1. Innovation incentives and competition in the hard disk drive industry

    E-Print Network [OSTI]

    Wu, Xiaohua Sherry

    2011-01-01T23:59:59.000Z

    Firms in the hard disk drive industry are continually engaging in R & D and improving the quality of their products. We explore various determinants of the product innovation incentives for firms concerned with both their ...

  2. Driving tissue morphogenetic cascades using tunable nanolayered surface coatings

    E-Print Network [OSTI]

    Shah, Nisarg Jaydeep

    2014-01-01T23:59:59.000Z

    Harnessing the synergy between materials at the nanoscale can be a valuable tool in understanding and probing cellular phenomena and in driving specific processes that lead to tissue and organ regeneration and repair. ...

  3. Electric Drive Component Manufacturing: Magna E-Car Systems of...

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

    Magna E-Car Systems of America, Inc. Electric Drive Component Manufacturing: Magna E-Car Systems of America, Inc. ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine...

  4. A Survey of Taxi Drivers Aberrant Driving Behavior in Beijing

    E-Print Network [OSTI]

    Shi, Jing; Tao, Li; Li, Xiaoyue; Xiao, Yao; Atchley, Paul

    2013-09-27T23:59:59.000Z

    Taxis are an important component in Beijing's urban integrated transport system. They provide passengers with convenient, comfortable, and efficient service. However, aberrant driving behaviors occur frequently among Beijing taxi drivers, leading...

  5. Variable Frequency Motor Drives: Harmonics, Power Factor, and Energy Efficiency

    E-Print Network [OSTI]

    Massey, G. W.

    Variable frequency motor drives (VFD's) have been on the market for many years. Early versions were unreliable and prone to failure. Relatively recent developments in Pulse-Width Modulated (PWM) waveform technology have improved VFD reliability...

  6. Design of a triple singularity drive for mobile wheeled robots

    E-Print Network [OSTI]

    Carothers, Jeffrey (Jeffrey W.)

    2014-01-01T23:59:59.000Z

    This thesis encompasses the development of a mobile robotic platform using three singularity drive modules. The process begins with a review of other omnidirectional platforms, comparing and contrasting their strengths and ...

  7. Series Input Modular Architecture for Driving Multiple LEDs

    E-Print Network [OSTI]

    , where each cell drives four 700 mA LEDs. Keywords solid-state lighting, light emitting diodes, LED have been achieved over the past decade in solid state light emitting diodes (LEDs), leading to high

  8. A cloud-assisted design for autonomous driving

    E-Print Network [OSTI]

    Suresh Kumar, Swarun

    This paper presents Carcel, a cloud-assisted system for autonomous driving. Carcel enables the cloud to have access to sensor data from autonomous vehicles as well as the roadside infrastructure. The cloud assists autonomous ...

  9. Energy Department Announces $19 Million to Drive Down Solar Soft...

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

    sources before the end of the decade. Through SunShot, the Department supports efforts by private companies, universities, and national laboratories to drive down the cost of solar...

  10. Low voltage vertical recording preamplifier for hard disk drives

    E-Print Network [OSTI]

    Mellachervu, Ramachandra Murthy

    2004-11-15T23:59:59.000Z

    , with increased demand for battery powered devices such as laptops, MP3 players, personal video recorders, andmanyother wireless hand-held devices, power consumption has become an important design parameter.Furthermore, in order to continue to increase drive...

  11. adjustable electric drive: Topics by E-print Network

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

    Ogden, Joan M. 2009-01-01 48 220,000-rmin, 2-kW Permanent Magnet Motor Drive for Turbocharger Toshihiko Noguchi, Yosuke Takata * Engineering Websites Summary: -combustion...

  12. Strain based preload measurement in drive axle pinion bearings

    E-Print Network [OSTI]

    Thomas, Anthony H., 1981-

    2005-01-01T23:59:59.000Z

    Bearing setting has a significant impact on bearing life and system performance. A strain based load measurement technique that has been previously developed and patented will be used to measure preload in automotive drive ...

  13. Electron Bernstein wave current drive modeling in toroidal plasma confinement

    E-Print Network [OSTI]

    Decker, Joan, 1977-

    2005-01-01T23:59:59.000Z

    The steady-state confinement of tokamak plasmas in a fusion reactor requires non-inductively driven toroidal currents. Radio frequency waves in the electron cyclotron (EC) range of frequencies can drive localized currents ...

  14. High efficiency pulse motor drive for robotic propulsion

    E-Print Network [OSTI]

    Sun, Zhen, M.S. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    The goal of this research is to improve the power efficiency of robotic locomotion through the use of series elastic actuation, with a focus on swimming motion. To achieve high efficiency, electromechanical drives need to ...

  15. Drive-access transit : a regional analytical framework

    E-Print Network [OSTI]

    Sorensen, James B

    2005-01-01T23:59:59.000Z

    A framework for analyzing drive-access transit at a regional level is developed in this research. This framework is intended primarily for in-house use by regional transit agencies, yet has implications for the regional ...

  16. Adjustable Speed AC Motor Drives-Applications Problems

    E-Print Network [OSTI]

    Enjeti, P.

    Adjustable Speed AC Motor Drives Applications Problems by Dr. P. Enjeti Power Quality Laboratory Department ofElectrical Engineering Texas A&M University College Station, TX 77843 Tel: 409-845-7466 Fax: 409-845-6259 Email..., it generates side effects, some which have been recognized only recently. This paper presents a comprehensive coverage of application issues of PWM inverter controlled ac motor drives which include damage to motor insulation due to reflected voltages caused...

  17. Quantum effects in the Alcubierre warp drive spacetime

    E-Print Network [OSTI]

    Hiscock, W A

    1997-01-01T23:59:59.000Z

    The expectation value of the stress-energy tensor of a free conformally invariant scalar field is computed in a two-dimensional reduction of the Alcubierre ``warp drive'' spacetime. The stress-energy is found to diverge if the apparent velocity of the spaceship exceeds the speed of light. If such behavior occurs in four dimensions, then it appears implausible that ``warp drive'' behavior in a spacetime could be engineered, even by an arbitrarily advanced civilization.

  18. Photon propagation in a stationary warp drive space-time

    E-Print Network [OSTI]

    Claes R Cramer

    1995-11-01T23:59:59.000Z

    We simplify the warp drive space-time so that it becomes stationary and the distorsion becomes one-dimensional and static. We use this simplified warp drive space-time as a background for a photon field. We shall especially use the Drummond\\&Hathrell action in order to investigate the velocity effects on photons in this background. Finally, we discuss the limitations of this model.

  19. Quantum effects in the Alcubierre warp drive spacetime

    E-Print Network [OSTI]

    William A. Hiscock

    1997-07-10T23:59:59.000Z

    The expectation value of the stress-energy tensor of a free conformally invariant scalar field is computed in a two-dimensional reduction of the Alcubierre ``warp drive'' spacetime. The stress-energy is found to diverge if the apparent velocity of the spaceship exceeds the speed of light. If such behavior occurs in four dimensions, then it appears implausible that ``warp drive'' behavior in a spacetime could be engineered, even by an arbitrarily advanced civilization.

  20. Driving Innovation at the National Labs | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office of Audit ServicesMirant Potomac River ComplianceCEnergy DrivingDriving

  1. Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial...

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

    Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft...

  2. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure...

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

    SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. SunLine Test Drives Hydrogen Bus:...

  3. U.S. First Responder Safety Training for Advanced Electric Drive...

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

    U.S. First Responder Safety Training for Advanced Electric Drive Vehicle Presentation U.S. First Responder Safety Training for Advanced Electric Drive Vehicle Presentation 2010 DOE...

  4. Strong mechanical driving of a single electron spin

    E-Print Network [OSTI]

    Arne Barfuss; Jean Teissier; Elke Neu; Andreas Nunnenkamp; Patrick Maletinsky

    2015-03-23T23:59:59.000Z

    Quantum devices for sensing and computing applications require coherent quantum systems which can be manipulated in a fast and robust way. Such quantum control is typically achieved using external electric or magnetic fields which drive the system's orbital or spin degrees of freedom. However, most of these approaches require complex and unwieldy antenna or gate structures, and with few exceptions are limited to the regime of weak driving. Here, we present a novel approach to strongly and coherently drive a single electron spin in the solid state using internal strain fields in an integrated quantum device. Specifically, we study individual Nitrogen-Vacancy (NV) spins embedded in diamond mechanical oscillators and exploit the intrinsic strain coupling between spin and oscillator to strongly drive the spins. As hallmarks of the strong driving regime, we directly observe the energy spectrum of the emerging phonon-dressed states and employ our strong, continuous driving for enhancement of the NV spin coherence time. Our results constitute a first step towards strain-driven, integrated quantum devices and open new perspectives to investigate unexplored regimes of strongly driven multi-level systems and to study exotic spin dynamics in hybrid spin-oscillator devices.

  5. Driving confidence and in-vehicle telematics : a study of technology adoption patterns of the 50+ driving population

    E-Print Network [OSTI]

    Hutchinson, Thomas E. (Thomas Ely), 1979-

    2004-01-01T23:59:59.000Z

    In-vehicle telematics is a term that encompasses a wide range of technologies, which aid the driving function through features assisting in safety and service tasks. These technologies are designed to give the operator and ...

  6. Name Phone Location Email Aebel, Barbara 362-3700 CSRB-NTA Suite 200, Room 223 barbara@wustl.edu

    E-Print Network [OSTI]

    Kroll, Kristen L.

    @path.wustl.edu Anderson, Mary Ann 935-7009 Danforth Campus - North Brookings maryann_anderson@wustl.edu Felton, Michele@wustl.edu Anderson, Margie 454-8101 Cytogenetics - Cortex Building, 4320 Forest Park, Suite 209 manderson

  7. Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of Energy fromCommentsRevolving Loan Funds Revolving LoanA l iSoftRTU Suite of

  8. Designing Effective Incentives to Drive Residential Retrofit Program Participation (Text Version)

    Broader source: Energy.gov [DOE]

    Transcript of the webinar, "Designing Effective Incentives to Drive Residential Retrofit Program Participation."

  9. Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) (Presentation)

    SciTech Connect (OSTI)

    Pesaran, A. A.

    2011-05-01T23:59:59.000Z

    This presentation describes NREL's computer aided engineering program for electric drive vehicle batteries.

  10. Simplified Modelling and Control of a Synchronous Machine with VariableSpeed SixStep Drive

    E-Print Network [OSTI]

    Sanders, Seth

    of electrical power flow in the machine. Cost is a driving factor in the design of such a system, and the power frequency than PWM as well. II. VARIABLE­SPEED ELECTRIC MACHINE DRIVES While the choice of driveSimplified Modelling and Control of a Synchronous Machine with Variable­Speed Six­Step Drive

  11. Hybrid Cascaded H-bridges Multilevel Motor Drive Control for Electric Vehicles

    E-Print Network [OSTI]

    Tolbert, Leon M.

    Hybrid Cascaded H-bridges Multilevel Motor Drive Control for Electric Vehicles Zhong Du1 , Leon M vehicle motor drive applications and hybrid electric vehicle motor drive applications. Keywords: hybrid cascaded H-bridge multilevel converter, DC voltage balance control, multilevel motor drive, electric

  12. Overview of Transport, Fast Particle and Heating and Current Drive Physics using Tritium in JET plasmas

    E-Print Network [OSTI]

    Overview of Transport, Fast Particle and Heating and Current Drive Physics using Tritium in JET plasmas

  13. Overview of Transport, Fast Particle and Heating and Current Drive Physics using Tritium in JET Plasmas

    E-Print Network [OSTI]

    Overview of Transport, Fast Particle and Heating and Current Drive Physics using Tritium in JET Plasmas

  14. Cancellation of TorqueRipple Due to Nonidealitiesof PermanentMagnet SynchronousMachine Drives

    E-Print Network [OSTI]

    Chapman, Patrick

    -magnet synchronous application than the predecessors. Further, the technique is machine (PMSM) drives dictates

  15. Simulation of Phase Stability at the Flat Top of the CLIC Drive Beam

    E-Print Network [OSTI]

    Gerbershagen, A; Burrows, P

    2011-01-01T23:59:59.000Z

    The drive beam phase stability is one of the critical issues of the Compact Linear Collider (CLIC). In this paper the generation and propagation of drive beam phase errors is studied for effects that vary during the drive beam pulse. This includes the influence of drive beam current and phase errors as well as of drive beam accelerator RF phase and amplitude errors on the drive beam phase after the compressor chicanes and the analysis of the propagation of these errors through the drive beam combination scheme. The impact of the imperfections on the main beam is studied including the possible correction with help of a feedforward system.

  16. Rotating mousehole improves top drive/conventional drilling

    SciTech Connect (OSTI)

    NONE

    1995-08-01T23:59:59.000Z

    Top drive speed and efficiency are limited and have not reached full potential because of operation ``bottlenecks`` during makeup or breakout of triple pipe stands and bottomhole assembly (BHA) change out. Operators and contractors analyzed tools to overcome these limitations and found a potential solution from International Tool Co., a supplier of kelly spinners, in a tool that has improved make/break efficiency and rig floor safety. The Phantom Mouse rotating mousehole assembly was developed to improve drilling efficiency on top-drive-equipped rigs. This new device tightens connections so pipe stands can be set back in derricks. Using the system, crews can quickly and efficiently make up and set back DP stands while drilling ahead with top drives. It can also be used to break out and lay down excess DP from the derrick.

  17. Controlled Speed Accessory Drive Program: Programmatic environmental assessment

    SciTech Connect (OSTI)

    Not Available

    1980-04-14T23:59:59.000Z

    This document is a programmatic environmental assessment of the Department of Energy's Controlled Speed Accessory Drive (CSAD) program and alternatives. Its purpose is to evaluate CSAD alternatives to assure that environmental priorities are considered at the earliest meaningful point in the decision-making process, and to facilitate the choice of preferable options. This document accords with both the letter and the spirit of the National Environmental Policy Act (NEPA) requirements as interpreted and standardized by the Council on Environmental Quality. The major conclusions reached in this assessment are as follows: (1) controlled speed accessory drive bolted onto existing automobile designs may not provide adequate engine cooling when operated at high ambient temperatures or under heavy loading; (2) when the CSAD is adopted for production, the emissions effect of controlled speed accessory drive will not be a problem. Auto emissions are already controlled by existing regulations, and automobiles with a CSAD must meet the same emission standards as non-CSAD vehicles; (3) the nature of the impact is such that significant expansion of the market will not affect it. The one adverse environmental concern, the engine cooling problem, will probably be remedied by proper optimization of automobiles for controlled speed accessory drive, or, until the problem can be alleviated, it will delay commercialization of the drive. No safety hazard will be introduced to the American roadways. In addition, no adverse environmental concerns directly related to the Controlled Speed Accessory Drive demonstration program are anticipated. Therefore, it is recommended that a finding of no significant impact be prepared.

  18. Electric machine and current source inverter drive system

    SciTech Connect (OSTI)

    Hsu, John S

    2014-06-24T23:59:59.000Z

    A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

  19. Metamaterial-based model of the Alcubierre warp drive

    E-Print Network [OSTI]

    Igor I. Smolyaninov

    2011-08-11T23:59:59.000Z

    Electromagnetic metamaterials are capable of emulating many exotic space-time geometries, such as black holes, rotating cosmic strings, and the big bang singularity. Here we present a metamaterial-based model of the Alcubierre warp drive, and study its limitations due to available range of material parameters. It appears that the material parameter range introduces strong limitations on the achievable "warp speed", so that ordinary magnetoelectric materials cannot be used. On the other hand, newly developed "perfect" bi-anisotropic non-reciprocal magnetoelectric metamaterials should be capable of emulating the physics of warp drive gradually accelerating up to 1/4c.

  20. The Casimir warp drive:Is the Casimir Effect a valid candidate to generate and sustain a Natario warp drive spacetime bubble??

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Casimir warp drive:Is the Casimir Effect a valid candidate to generate and sustain a Natario warp drive spacetime bubble?? Fernando Loup Residencia de Estudantes Universitas Lisboa Portugal April 21, 2014 Abstract Warp Drives are solutions of the Einstein Field Equations that allows superluminal

  1. Is the Weibull distribution really suited for wind statistics modeling and wind power evaluation?

    E-Print Network [OSTI]

    Drobinski, Philippe

    2012-01-01T23:59:59.000Z

    Wind speed statistics is generally modeled using the Weibull distribution. This distribution is convenient since it fully characterizes analytically with only two parameters (the shape and scale parameters) the shape of distribution and the different moments of the wind speed (mean, standard deviation, skewness and kurtosis). This distribution is broadly used in the wind energy sector to produce maps of wind energy potential. However, the Weibull distribution is based on empirical rather than physical justification and might display strong limitations for its applications. The philosophy of this article is based on the modeling of the wind components instead of the wind speed itself. This provides more physical insights on the validity domain of the Weibull distribution as a possible relevant model for wind statistics and the quantification of the error made by using such a distribution. We thereby propose alternative expressions of more suited wind speed distribution.

  2. LP-VIcode: a program to compute a suite of variational chaos indicators

    E-Print Network [OSTI]

    D. D. Carpintero; N. P. Maffione; L. A. Darriba

    2014-04-08T23:59:59.000Z

    An important point in analysing the dynamics of a given stellar or planetary system is the reliable identification of the chaotic or regular behaviour of its orbits. We introduce here the program LP-VIcode, a fully operational code which efficiently computes a suite of ten variational chaos indicators for dynamical systems in any number of dimensions. The user may choose to simultaneously compute any number of chaos indicators among the following: the Lyapunov Exponents, the Mean Exponential Growth factor of Nearby Orbits, the Slope Estimation of the largest Lyapunov Characteristic Exponent, the Smaller ALignment Index, the Generalized ALignment Index, the Fast Lyapunov Indicator, the Othogonal Fast Lyapunov Indicator, the dynamical Spectra of Stretching Numbers, the Spectral Distance, and the Relative Lyapunov Indicator. They are combined in an efficient way, allowing the sharing of differential equations whenever this is possible, and the individual stopping of their computation when any of them saturates.

  3. Progress in Direct-Drive Inertial Confinement Fusion

    SciTech Connect (OSTI)

    Meyerhofer,D.D.

    2004-12-17T23:59:59.000Z

    Recent progress in direct-drive inertial confinement fusion research at LLE using the 60-beam, 30-kJUV OMEGA laser system and cryogenic target capability to perform ignition-scaled implosions will be reported. In addition, a new high-energy (2.6-kJ) petawatt capability is currently under construction.

  4. Assistive listening devices drive neuroplasticity in children with dyslexia

    E-Print Network [OSTI]

    Assistive listening devices drive neuroplasticity in children with dyslexia Jane Hornickela Jolla, CA, and approved August 3, 2012 (received for review April 23, 2012) Children with dyslexia often on auditory neurophysiology and reading skills in children with dyslexia. FM system use reduced

  5. Thermal Issues in Disk Drive Design: Challenges and Possible Solutions

    E-Print Network [OSTI]

    Gurumurthi, Sudhanva

    are to adhere to the thermal design envelope. We motivate the need for continued improvements in IDR by showing throttles its activities to remain within the thermal envelope. Categories and Subject Descriptors: B.4Thermal Issues in Disk Drive Design: Challenges and Possible Solutions SUDHANVA GURUMURTHI

  6. IPAS exists to deliver breakthrough science, drive innovation and thus

    E-Print Network [OSTI]

    IPAS exists to deliver breakthrough science, drive innovation and thus enable illuminated decision making for a safer, healthier & wealthier world #12;Director's Welcome Our vision is to make IPAS from many areas of science. IPAS has been created to bring together physicists, chemists and biologists

  7. Project Information Form Project Title Eco-Driving for Transit

    E-Print Network [OSTI]

    California at Davis, University of

    Provided (by each agency or organization) DOT - $54,871.35 Total Project Cost $54,871.35 Agency IDProject Information Form Project Title Eco-Driving for Transit University Georgia Institute Project Second-by-second data for school buses, MARTA transit buses, and GRTA express buses

  8. Fast wave current drive in DIII-D

    SciTech Connect (OSTI)

    Petty, C.C.; Callis, R.W.; Chiu, S.C.; deGrassie, J.S.; Forest, C.B.; Freeman, R.L.; Gohil, P.; Harvey, R.W.; Ikezi, H.; Lin-Liu, Y.-R. [and others

    1995-02-01T23:59:59.000Z

    The non-inductive current drive from fast Alfven waves launched by a directional four-element antenna was measured in the DIII-D tokamak. The fast wave frequency (60 MHz) was eight times the deuterium cyclotron frequency at the plasma center. An array of rf pickup loops at several locations around the torus was used to verify the directivity of the four-element antenna. Complete non-inductive current drive was achieved using a combination of fast wave current drive (FWCD) and electron cyclotron current drive (ECCD) in discharges for which the total plasma current was inductively ramped down from 400 to 170 kA. For discharges with steady plasma current, up to 110 kA of FWCD was inferred from an analysis of the loop voltage, with a maximum non-inductive current (FWCD, ECCD, and bootstrap) of 195 out of 310 kA. The FWCD efficiency increased linearly with central electron temperature. For low current discharges, the FWCD efficiency was degraded due to incomplete fast wave damping. The experimental FWCD was found to agree with predictions from the CURRAY ray-tracing code only when a parasitic loss of 4% per pass was included in the modeling along with multiple pass damping.

  9. 2006-2007 Research Report 57 Campus Drive

    E-Print Network [OSTI]

    Saskatchewan, University of

    and Processing, Transport, Electrical Energy and Utilization ........................................... 25 4;#12;2006-2007 Research Report http:// www.engr.usask.ca/research/index.php?cmd=tree_nodeID22 57 Campus Drive Saskatoon-processing ................ 11 2. Environment, Infrastructure and Sustainable Development ....... 17 3. Energy: Production

  10. 2005-2006 Research Report 57 Campus Drive

    E-Print Network [OSTI]

    Saskatchewan, University of

    and Processing, Transport, Electrical Energy and Utilization ........................................... 25 4;#12;2005-2006 Research Report http:// www.engr.usask.ca/research/index.php?cmd=tree_nodeID22 57 Campus Drive Saskatoon-processing ................ 11 2. Environment, Infrastructure and Sustainable Development ....... 17 3. Energy: Production

  11. Global biofuel drive raises risk of eviction for African farmers

    E-Print Network [OSTI]

    Global biofuel drive raises risk of eviction for African farmers African farmers risk being forced from their lands by investors or government projects as global demand for biofuels encourages changes at risk if African farmland is turned over to growing crops for biofuel. With growing pressure to find

  12. Electric Drive Vehicles: A Huge New Distributed Energy Resource

    E-Print Network [OSTI]

    Firestone, Jeremy

    with electric power generation and storage capabilities · Three Vehicle Types in Program ­ Full ZEV: true zero) #12;Electric Drive in Vehicles -- All the Ingredients for a Distributed Power System #12;Vehicle and energy storage potential · Electric vehicle charge stations: grid connection points for power

  13. A CASTOR WHEEL CONTROLLER FOR DIFFERENTIAL DRIVE WHEELCHAIRS

    E-Print Network [OSTI]

    Bremen, Universitt

    on the front axis), and the tire material (rubber), the addi- tional force to change the angle of the castor by the equipped laser scanners and brakes in time if an obstacle is danger- ously close to the wheelchair. During for different grounds and tire materials, but without a projection of these forces to the differential drive

  14. Control of the Lamb shift by a driving field

    E-Print Network [OSTI]

    Yang, Shuai; Zheng, Hang; Hong, Ran; Zhu, Shi-Yao; Zubairy, M. Suhail

    2010-01-01T23:59:59.000Z

    A unitary transformation approach is used to study the energy level shift of the atom coupled to both a vacuum electromagnetic field and a driving laser. The Lamb shift of the energy levels is shown to depend on the Rabi frequency and the detuning...

  15. Driving Pattern Recognition for Control of Hybrid Electric Trucks

    E-Print Network [OSTI]

    Peng, Huei

    Driving Pattern Recognition for Control of Hybrid Electric Trucks CHAN-CHIAO LIN1 , SOONIL JEON2 strategy is to minimize fuel consumption and engine-out NOx and PM emissions on a set of diversified trucks. The 21st Century Truck program in the US, spearheaded by two government agencies, Department

  16. How to Avoid Overestimating Variable Speed Drive Savings

    E-Print Network [OSTI]

    Maxwell, J. B.

    2005-01-01T23:59:59.000Z

    in fan efficiency. 5. Account for decreases in motor efficiency at part load, particularly for smaller motors below about 35 percent load. 6. Recognize that existing part load controls may be more efficient than expected. 7. Account for drive losses. 8...

  17. Transport Research Arena Europe 2010, Brussels Towards Highly Automated Driving

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of HAVEit is to develop and investigate vehicle automation beyond ADAS systems, especially highly automated automated vehicles In 2010, two lines of research and development exist in the domain of ground vehicle automation: Either the automation is driving the vehicle fully automated without a human driver

  18. In his recently published book Driving Detroit: The Quest

    E-Print Network [OSTI]

    Baskaran, Mark

    changed by three forces: an unplanned, speculation-driven housing development system; dependency. Throughout Driving Detroit, Detroiters tell their stories in songs, poems and oral histories, offering and management,describes his WSU playing field with the precision of an engineer:"More than 120 buildings,12

  19. Developing a 3D Sound Environment for a Driving Simulator

    E-Print Network [OSTI]

    squealing of a human-controlled vehicle, and the engine noise of autonomous vehicles. Both the engine of a police vehicle using the Doppler Effect. Other sounds such as vehicle wind noise, beeping of the vehicle. Introduction Sound plays an important role in the realm of driving. Wind and engine noise contribute to fatigue

  20. innovati nWind Turbine Design Innovations Drive Industry Transformation

    E-Print Network [OSTI]

    innovati nWind Turbine Design Innovations Drive Industry Transformation For more than 20 years. Tackling Turbine Blade Inefficiencies In 1984, NREL researchers began investigating problems with wind turbine blade designs. Inefficiency was a significant barrier to lowering the cost of wind energy

  1. Physical model of a hybrid electric drive train

    E-Print Network [OSTI]

    Young, Brady W. (Brady William)

    2006-01-01T23:59:59.000Z

    A motor and flywheel system was designed to simulate the dynamics of the electric drive train and inertial mass of a hybrid electric vehicle. The model will serve as a test bed for students in 2.672 to study the energy ...

  2. Ecological factors and human threats both drive wildfowl population declines

    E-Print Network [OSTI]

    ; human population density. Correspondence Peter R. Long, Department of Biology and Biochemistry, Africa and Asia. Second, we use phylogenetic comparative analyses to test whether population size, globalEcological factors and human threats both drive wildfowl population declines P. R. Long1 , T. Sz

  3. An Optimization Model for Eco-Driving at Signalized Intersection

    E-Print Network [OSTI]

    Chen, Zhi

    2013-07-15T23:59:59.000Z

    strategy which aims to reduce exclusive fuel consumption and emissions by modifying or optimizing drivers behaviors. With the help of vehicle-to-vehicle (V2V) communication and vehicle-to-infrastructure communication (V2I), eco-driving could utilize...

  4. Driving Resource Management With ApplicationLevel Quality of Service

    E-Print Network [OSTI]

    Katchabaw, Michael James

    Driving Resource Management With ApplicationLevel Quality of Service Specifications Michael Jdriven approach to resource management to support quality of service. We present our general strategy, the design resource management. Appeared in Decision Support Systems Journal, Volume 28, Elsevier Science Press, 2000

  5. ENGINEERS' DAY 2011 ACTIVITIES 1800 Engineering Hall, 1415 Engineering Drive

    E-Print Network [OSTI]

    Sheridan, Jennifer

    , Operations Support Exelon Nuclear Warrenville, Illinois Brian J. Rauch Vice President, Engineering John DeereENGINEERS' DAY 2011 ACTIVITIES 1800 Engineering Hall, 1415 Engineering Drive 5:30 SOCIAL HOUR · Distinguished Achievement Awards · Early-Career Achievement Award · College of Engineering faculty and staff

  6. Driving down corporate carbon emissions through sustainable property management

    E-Print Network [OSTI]

    Driving down corporate carbon emissions through sustainable property management Challenge Many organisations are facing increasing cost challenges and pressure to reduce their carbon dioxide (CO2) emissions consideration is the carbon dioxide emissions per square metre of floor space. While an important metric

  7. 08/15/2006 04:46 PMGeorgia Tech develops a `SWAN` suit Page 1 of 1http://science.monstersandcritics.com/news/printer_1190655.php

    E-Print Network [OSTI]

    ://science.monstersandcritics.com/news/printer_1190655.php From Monsters and Critics.com SCIENCE NEWS Georgia Tech develops a `SWAN` suit By UPI Aug 15

  8. Office of Technology Transfer and Innovation Partnerships, Innovative Technologies Complex, Suite 2100 Mailing Address: PO Box 6000, Binghamton, New York 13902-6000

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    Office of Technology Transfer and Innovation Partnerships, Innovative Technologies Complex, Suite Hancock Assistant Director for Licensing Binghamton University Office of Technology Transfer

  9. Submitting a Vendor Request 1. Click on `Vendor Request' in the Oracle E-Business Suite screen

    E-Print Network [OSTI]

    Submitting a Vendor Request 1. Click on `Vendor Request' in the Oracle E-Business Suite screen 2. Search for the vendor to make sure they're not already in the system (remember to use the wildcard % symbol to make your search more thorough). 3. If the vendor you're trying to set up does not come up

  10. A Late Neoproterozoic (V630 Ma) high-magnesium andesite suite from southern Israel: implications for the consolidation

    E-Print Network [OSTI]

    Basu, Asish R.

    A Late Neoproterozoic (V630 Ma) high-magnesium andesite suite from southern Israel: implications and depleted in heavy rare earth elements. They are high-magnesium andesites and are similar to low-Ca type 2; Neoproterozoic; high-magnesium andesite 1. Introduction The Arabian^Nubian Shield (ANS) comprises 0012-821X / 03

  11. Compact Accelerated Life Testing with Expanded Measurement Suite John Raguse, Russell Geisthardt, Jennifer Drayton, James R. Sites

    E-Print Network [OSTI]

    Sites, James R.

    Compact Accelerated Life Testing with Expanded Measurement Suite John Raguse, Russell Geisthardt -- An accelerated-life-testing (ALT) system has been built at the Colorado State University Photovoltaics Laboratory, electroluminescence, current measurement. I. INTRODUCTION A state-of-the-art accelerated-life-testing (ALT) system

  12. STATE OF COLORADO 1560 Broadway, Suite 1600, Denver, Colorado 80202 (303) 866-2723 fax (303) 866-4266

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    STATE OF COLORADO 1560 Broadway, Suite 1600, Denver, Colorado 80202 (303) 866-2723 fax (303) 866-4266 http://highered.colorado.gov DEPARTMENT OF HIGHER EDUCATION John Hickenlooper Governor Lt. Gov. Joseph A. Garcia Executive Director EARLY CHILDHOOD TEACHER EDUCATION TRANSFER AGREEMENT Between COLORADO

  13. Underground coal mining is an industry well suited for robotic automation. Human operators are severely hampered in

    E-Print Network [OSTI]

    Stentz, Tony

    Abstract Underground coal mining is an industry well suited for robotic automation. Human operators approach meets the requirements for cutting straight entries and mining the proper amount of coal per cycle. Introduction The mining of soft materials, such as coal, is a large industry. Worldwide, a total of 435 million

  14. PHYSICS OF ELCTRON CYCLOTRON CURRENT DRIVE ON DIII-D

    SciTech Connect (OSTI)

    PETTY,CC; PRATER,R; LUCE,TC; ELLIS,RA; HARVEY,RW; KINSEY,JE; LAO,LL; LOHR,J; MAKOWSKI,MA

    2002-09-01T23:59:59.000Z

    OAK A271 PHYSICS OF ELCTRON CYCLOTRON CURRENT DRIVE ON DIII-D. Recent experiments on the DIII-D tokamak have focused on determining the effect of trapped particles on the electron cyclotron current drive (ECCD) efficiency. The measured ECCD efficiency increases as the deposition location is moved towards the inboard midplane or towards smaller minor radius for both co and counter injection. The measured ECCD efficiency also increases with increasing electron density and/or temperature. The experimental ECCD is compared to both the linear theory (Toray-GA) as well as a quasilinear Fokker-Planck model (CQL3D). The experimental ECCD is found to be in better agreement with the more complete Fokker-Planck calculation, especially for cases of high rf power density and/or loop voltage. The narrow width of the measured ECCD profile is consistent with only low levels of radial transport for the current carrying electrons.

  15. Bailer for top head drive rotary well drills

    SciTech Connect (OSTI)

    Bartholomew, L.

    1980-09-23T23:59:59.000Z

    A bailer mounted to the derrick of a top head drive well drilling rig is described. The bailer includes a winch line drum mounted by a bracket to the derrick. A positive displacement hydraulic motor mounts one end of the drum and receives fluid under pressure from the existing hydraulic pressure supply. Valving is provided to allow reverse operation of the motor so equipment can either be raised or lowered relative to the derrick. The hydraulic delivery line to the motor includes a one way restrictor that will allow relatively free passage of fluid to the motor in a driving or lifting mode but will reverse flow of fluid from the motor, thereby affording a braking effect for lowering a load at a selected rate.

  16. Conformal Gravity and the Alcubierre Warp Drive Metric

    E-Print Network [OSTI]

    Varieschi, Gabriele U

    2012-01-01T23:59:59.000Z

    We present an analysis of the classic Alcubierre metric based on conformal gravity, rather than standard general relativity. The main characteristics of the resulting warp drive remain the same as in the original study by Alcubierre, namely that effective super-luminal motion is a viable outcome of the metric. We show that for particular choices of the shaping function, the Alcubierre metric in the context of conformal gravity does not violate the weak energy condition, as was the case of the original solution. In particular, the resulting warp drive does not require the use of exotic matter. Therefore, if conformal gravity is a correct extension of general relativity, super-luminal motion via an Alcubierre metric might be a realistic solution, thus allowing faster-than-light interstellar travel.

  17. On the impossibility of superluminal travel: the warp drive lesson

    E-Print Network [OSTI]

    Carlos Barcel; Stefano Finazzi; Stefano Liberati

    2010-01-27T23:59:59.000Z

    The question of whether it is possible or not to surpass the speed of light is already centennial. The special theory of relativity took the existence of a speed limit as a principle, the light postulate, which has proven to be enormously predictive. Here we discuss some of its twists and turns when general relativity and quantum mechanics come into play. In particular, we discuss one of the most interesting proposals for faster than light travel: warp drives. Even if one succeeded in creating such spacetime structures, it would be still necessary to check whether they would survive to the switching on of quantum matter effects. Here, we show that the quantum back-reaction to warp-drive geometries, created out of an initially flat spacetime, inevitably lead to their destabilization whenever superluminal speeds are attained. We close this investigation speculating the possible significance of this further success of the speed of light postulate.

  18. Conformal Gravity and the Alcubierre Warp Drive Metric

    E-Print Network [OSTI]

    Gabriele U. Varieschi; Zily Burstein

    2012-08-17T23:59:59.000Z

    We present an analysis of the classic Alcubierre metric based on conformal gravity, rather than standard general relativity. The main characteristics of the resulting warp drive remain the same as in the original study by Alcubierre, namely that effective super-luminal motion is a viable outcome of the metric. We show that for particular choices of the shaping function, the Alcubierre metric in the context of conformal gravity does not violate the weak energy condition, as was the case of the original solution. In particular, the resulting warp drive does not require the use of exotic matter. Therefore, if conformal gravity is a correct extension of general relativity, super-luminal motion via an Alcubierre metric might be a realistic solution, thus allowing faster-than-light interstellar travel.

  19. Technical Note: DIRART- A software suite for deformable image registration and adaptive radiotherapy research

    SciTech Connect (OSTI)

    Yang Deshan; Brame, Scott; El Naqa, Issam; Aditya, Apte; Wu Yu; Murty Goddu, S.; Mutic, Sasa; Deasy, Joseph O.; Low, Daniel A. [Department of Radiation Oncology, School of Medicine, Washington University in Saint Louis, Missouri 63110 (United States)

    2011-01-15T23:59:59.000Z

    Purpose: Recent years have witnessed tremendous progress in image guide radiotherapy technology and a growing interest in the possibilities for adapting treatment planning and delivery over the course of treatment. One obstacle faced by the research community has been the lack of a comprehensive open-source software toolkit dedicated for adaptive radiotherapy (ART). To address this need, the authors have developed a software suite called the Deformable Image Registration and Adaptive Radiotherapy Toolkit (DIRART). Methods: DIRART is an open-source toolkit developed in MATLAB. It is designed in an object-oriented style with focus on user-friendliness, features, and flexibility. It contains four classes of DIR algorithms, including the newer inverse consistency algorithms to provide consistent displacement vector field in both directions. It also contains common ART functions, an integrated graphical user interface, a variety of visualization and image-processing features, dose metric analysis functions, and interface routines. These interface routines make DIRART a powerful complement to the Computational Environment for Radiotherapy Research (CERR) and popular image-processing toolkits such as ITK. Results: DIRART provides a set of image processing/registration algorithms and postprocessing functions to facilitate the development and testing of DIR algorithms. It also offers a good amount of options for DIR results visualization, evaluation, and validation. Conclusions: By exchanging data with treatment planning systems via DICOM-RT files and CERR, and by bringing image registration algorithms closer to radiotherapy applications, DIRART is potentially a convenient and flexible platform that may facilitate ART and DIR research.

  20. Connecting the Mobile World Drive Train Developments and

    E-Print Network [OSTI]

    California at Davis, University of

    Cost Power Modules #12;Ve h i c u l a r Te c h n o l o g y S o c i e t y Diesel ICE and MotorConnecting the Mobile World Drive Train Developments and Opportunities: Power Electronics, 2013 Connecting the Mobile World #12;Ve h i c u l a r Te c h n o l o g y S o c i e t y Power EDT

  1. Variable Frequency AC Drives for Cooling Tower Energy Efficiency

    E-Print Network [OSTI]

    Corey, R. W.

    1982-01-01T23:59:59.000Z

    speed fan drives. Fan speed is reduced to yield specific water temperatures at thermal conditions less difficult than design. The reduced air flow is accomplished by reduced fan power consumption, resulting in optimum cooling tower operation... and economics. Automatic fan speed control by sensing cold water temperature is the economic essence of the application of adjustable frequency power to A-C fan motors. 2.2 Cell Partitions In some multi-cell mechanical-draft cooling towers, the isolation...

  2. MHD simulation of RF current drive in MST

    SciTech Connect (OSTI)

    Hendries, E. R.; Anderson, J. K.; Forest, C. B.; Reusch, J. A.; Seltzman, A. H.; Sovinec, C. R. [University of Wisconsin, Madison WI (United States); Diem, S. [Oak Ridge National Laboratory, Oak Ridge TN (United States); Harvey, R. W. [CompX, Del Mar, CA (United States)

    2014-02-12T23:59:59.000Z

    Auxiliary heating and current drive using RF waves such as the electron Bernstein wave (EBW) promises to advance the performance of the reversed field pinch (RFP). In previous computational work [1], a hypothetical edge-localized current drive is shown to suppress the tearing activity which governs the macroscopic transport properties of the RFP. The ideal conditions for tearing stabilization include a reduced toroidal induction, and precise width and radial position of the Gaussian-shaped external current drive. In support of the EBW experiment on the Madison Symmetric Torus, an integrated modeling scheme now incorporates ray tracing and Fokker-Plank predictions of auxiliary current into single fluid MHD. Simulations at low Lundquist number (S ? 10{sup 4}) generally agree with the previous work; significantly more burdensome simulations at MST-like Lundquist number (S ? 310{sup 6}) show unexpected results. The effect on nonlinearly saturated current profile by a particular RF-driven external force decreases in magnitude and widens considerably as the Lundquist number increases toward experimental values. Simulations reproduce the periodic current profile relaxation events observed in experiment (sawteeth) in the absence of current profile control. Reduction of the tearing mode amplitudes is still observable; however, reduction is limited to periods between the large bursts of magnetic activity at each sawtooth. The sawtoothing pattern persists with up to 10 MW of externally applied RF power. Periods with prolonged low tearing amplitude are predicted with a combination of external current drive and a reduced toroidal loop voltage, consistent with previous conclusions. Finally, the resistivity profile is observed to have a strong effect on the optimal externally driven current profile for mode stabilization.

  3. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-03-23T23:59:59.000Z

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

  4. Photon tunneling in the warp drive space-time

    E-Print Network [OSTI]

    Cramer, C R

    1995-01-01T23:59:59.000Z

    We simplify the warp drive space-time such that it becomes stationary and the distorsion becomes one-dimensional and static. We use this simplified space-time as the classical background space-time for a photon field. The Drummond&Hathrell action is then used in order to investigate the velocity effects on photons tunneling through the space-time distorsion. We speculate on whether or not all tunneling processes with photons induce faster than light effects.

  5. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    1999-01-01T23:59:59.000Z

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced.

  6. The Role of the Built Environment in Reducing Driving and

    E-Print Network [OSTI]

    Bustamante, Fabián E.

    Communities Planning Act of 2008 Targets for GHG emissions reduction from cars and trucks for metropolitan Emissions from Driving CO2 = CO2 /gallon x gallons/mile x miles Fuel Vehicle Person #12;SB375 Sustainable% 13% San Diego 7% 13% #12;Annual VMT per Capita in U.S. - 2,000 4,000 6,000 8,000 10,000 12,000 1936

  7. Driving Home to a Clean Energy Future | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office of Audit ServicesMirant Potomac River ComplianceCEnergy Driving

  8. GIZ Sourcebook Module 4f: Eco Driving | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, search Equivalent URIFrontier,Jump to:Wilmette, Jump| Openf: Eco Driving

  9. A study of alternative drive control interfaces for next-generation electric vehicles

    E-Print Network [OSTI]

    Post, C. Christopher (Charles Christopher)

    2011-01-01T23:59:59.000Z

    The drive control interface in automobiles has not significantly changed for almost a century. Recent advances in electric vehicles and drive-by-wire technology allow for new alternative interfaces that enable novel vehicle ...

  10. High Precision Control of Indirect Drive Systems Based on End-effector Sensor Information

    E-Print Network [OSTI]

    Han, Cheng-Huei

    2009-01-01T23:59:59.000Z

    Block diagram of a single-joint indirect drive train witha Figure 4.4: Block diagram of a single-joint indirect driveBlock diagram of the control system given in Section 3.6. Single-Joint

  11. EV Everywhere: Electric Drive Systems Bring Power to Plug-in...

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

    Electric Drive Systems Bring Power to Plug-in Electric Vehicles EV Everywhere: Electric Drive Systems Bring Power to Plug-in Electric Vehicles January 31, 2014 - 9:47am Addthis The...

  12. Age and cross-cultural comparison of drivers' cognitive workload and performance in simulated urban driving

    E-Print Network [OSTI]

    Son, J.

    Driving demands significant psychomotor attention and requires even more when drivers are engaged in secondary tasks that increase cognitive workload and divert attention. It is well established that age influences driving ...

  13. Measured Savings of DC to AC Drive Retrofit in Plastic Extrusion

    E-Print Network [OSTI]

    Sfeir, R. A.

    2008-01-01T23:59:59.000Z

    This paper presents the potential electrical energy efficiency improvements for utilizing alternating current (AC) motors controlled by variable frequency drives (VFD) in place of direct current (DC) motors to drive plastic extrusion machines. A...

  14. Analysis of Battery Wear and V2G Benefits Using Real-world Drive...

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

    Battery Wear and V2G Benefits Using Real-world Drive Cycles and Ambient Data Analysis of Battery Wear and V2G Benefits Using Real-world Drive Cycles and Ambient Data 2011 DOE...

  15. US-ABC Collaborates to Lower Cost of Electric Drive Batteries...

    Office of Environmental Management (EM)

    US-ABC Collaborates to Lower Cost of Electric Drive Batteries US-ABC Collaborates to Lower Cost of Electric Drive Batteries April 16, 2013 - 12:00am Addthis The U.S. Advanced...

  16. CAMPAIGNING, CANVASSING AND PETITION DRIVES ON THE MICHIGAN STATE UNIVERSITY CAMPUS

    E-Print Network [OSTI]

    Liu, Taosheng

    CAMPAIGNING, CANVASSING AND PETITION DRIVES ON THE MICHIGAN STATE UNIVERSITY CAMPUS - GUIDELINES - Michigan State University encourages students to be informed about and participate in the political process campaigning, canvassing and petitioning drives on the Michigan State University campus. These statements

  17. Evaluating Importance Ratings as an Alternative to Mental Models in Predicting Driving Crashes and Moving Violations

    E-Print Network [OSTI]

    McDonald, Jennifer Nicole

    2012-07-16T23:59:59.000Z

    The present study investigated the extent to which importance ratings (i.e., a measure of perceived importance for driving-related concepts) are a viable alternative to traditional mental model assessment methods in predicting driving performance...

  18. E-Print Network 3.0 - advanced electrical drives Sample Search...

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

    Drive Dr. Geng, Hua Postdoc Wind Energy Dr... .D. Wind Energy Popat, Mitesh Ph.D. Alternative Energy (shale oil) Al-Nabi, Ehsan Ph.D. Electric Drive Zhu... , Ning Ph.D....

  19. Solar wind driving of magnetospheric ULF waves: Field line resonances driven by dynamic pressure fluctuations

    E-Print Network [OSTI]

    Solar wind driving of magnetospheric ULF waves: Field line resonances driven by dynamic pressure observational studies suggest that solar wind dynamic pressure fluctuations can drive magnetosphericFedderMobarry (LFM) global, threedimensional magnetohydrodynamic (MHD) simulations of the solar wind

  20. Would You Consider Driving a Vehicle that Can Run on Biodiesel...

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

    Would You Consider Driving a Vehicle that Can Run on Biodiesel? Would You Consider Driving a Vehicle that Can Run on Biodiesel? September 16, 2010 - 7:30am Addthis On Monday,...

  1. Energy Department Awards $2.2 Million to Drive Innovative Solutions...

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

    Awards 2.2 Million to Drive Innovative Solutions, Lower Costs of Solar Energy Department Awards 2.2 Million to Drive Innovative Solutions, Lower Costs of Solar March 10, 2014 -...

  2. Analysis and Simulation of Mechanical Trains Driven by Variable Frequency Drive Systems

    E-Print Network [OSTI]

    Han, Xu

    2012-02-14T23:59:59.000Z

    Induction motors and Variable Frequency Drives (VFDs) are widely used in industry to drive machinery trains. However, some mechanical trains driven by VFD-motor systems have encountered torsional vibration problems. This vibration can induce large...

  3. GPS Data Filtration Method for Drive Cycle Analysis Applications

    SciTech Connect (OSTI)

    Duran, A.; Earleywine, M.

    2013-02-01T23:59:59.000Z

    When employing GPS data acquisition systems to capture vehicle drive-cycle information, a number of errors often appear in the raw data samples, such as sudden signal loss, extraneous or outlying data points, speed drifting, and signal white noise, all of which limit the quality of field data for use in downstream applications. Unaddressed, these errors significantly impact the reliability of source data and limit the effectiveness of traditional drive-cycle analysis approaches and vehicle simulation software. Without reliable speed and time information, the validity of derived metrics for drive cycles, such as acceleration, power, and distance, become questionable. This study explores some of the common sources of error present in raw onboard GPS data and presents a detailed filtering process designed to correct for these issues. Test data from both light and medium/heavy duty applications are examined to illustrate the effectiveness of the proposed filtration process across the range of vehicle vocations. Graphical comparisons of raw and filtered cycles are presented, and statistical analyses are performed to determine the effects of the proposed filtration process on raw data. Finally, an evaluation of the overall benefits of data filtration on raw GPS data and present potential areas for continued research is presented.

  4. Disk Drive Roadmap from the Thermal Perspective: A Case for Dynamic Thermal Management

    E-Print Network [OSTI]

    Gurumurthi, Sudhanva

    to the thermal envelope of drive design. We present two mechanisms for buying back some of this IDR loss allowing higher RPMs than the thermal envelope, and employs dynamic throttling of disk drive activities to remain within this envelope. Keywords: Disk Drives, Thermal Management, Technology Scaling. 1

  5. Disk Drive Roadmap from the Thermal Perspective: A Case for Dynamic Thermal Management

    E-Print Network [OSTI]

    Sivasubramaniam, Anand

    the thermal envelope, and employs dynamic throttling of disk drive activities to remain within this envelopeDisk Drive Roadmap from the Thermal Perspective: A Case for Dynamic Thermal Management Sudhanva The importance of pushing the performance envelope of disk drives continues to grow, not just in the server

  6. Power factor correction of an electrical drive system based on multiphase machines

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Power factor correction of an electrical drive system based on multiphase machines Khoudir MAROUANI_tabache@yahoo.com Abstract--This paper deals with the energy efficiency improvement of an electrical drive which can be used both in wind energy conversion or motor drive applications. A power factor (PF) control scheme

  7. Specification and Validation of New Control Algorithms for Electric Drives Using SpecC Language

    E-Print Network [OSTI]

    California at Irvine, University of

    Specification and Validation of New Control Algorithms for Electric Drives Using SpecC LanguageC design methodology. Keywords-- Electric Drives, Control, Specification, Validation I. INTRODUCTION Today presentation of the electrical drives and of the SpecC language. Then, we present the specification model

  8. Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim Bocker

    E-Print Network [OSTI]

    Paderborn, Universität

    Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim B¨ocker Abstract--For the simulation of electrical drives, reduced- order models or simple look-up tables are often used in order) for an electric drive, where the control structure, power electronics and motor are modeled in different environ

  9. ANL/ESD/10-9 Highway Vehicle Electric Drive in the United States

    E-Print Network [OSTI]

    Kemner, Ken

    ANL/ESD/10-9 Highway Vehicle Electric Drive in the United States: 2009 Status and Issues Energy Laboratory, or UChicago Argonne, LLC. #12;ANL/ESD/10-9 Highway Vehicle Electric Drive in the United States .............................................................................................................. 1 2 STATE OF ELECTRIC DRIVE VEHICLE TECHNOLOGY .......................................... 4 2

  10. NREL's Isothermal Battery Calorimeters are Crucial Tools for Advancing Electric-Drive Vehicles

    E-Print Network [OSTI]

    NREL's Isothermal Battery Calorimeters are Crucial Tools for Advancing Electric-Drive Vehicles, and plug-in hybrids. But before more Americans switch to electric-drive vehicles, automakers need batteries to the safety and performance of electric-drive batteries. The innovative Isothermal Battery Calorimeters (IBCs

  11. Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study M. Zeraoulia1 Combustion Engine (ICE) and the electric motor to deliver power in parallel to drive the wheels. Since both the ICE and electric motor are generally coupled to the drive shaft of the wheels via two clutches

  12. Kandler Smith, NREL EDV Battery Robust Design -1 Design of Electric Drive Vehicle

    E-Print Network [OSTI]

    Kandler Smith, NREL EDV Battery Robust Design - 1 Design of Electric Drive Vehicle Batteries for battery aging · Worst-case duty cycles and environments drive the need to oversize batteries · Systems with vehicle simulations under realistic driving cycles and environments ASTR 2010 Oct 6 ­ 8, Denver. Colorado

  13. Specification and Validation of New Control Algorithms for Electric Drives using SpecC Language

    E-Print Network [OSTI]

    California at Irvine, University of

    Specification and Validation of New Control Algorithms for Electric Drives using SpecC Language://www.cecs.uci.edu/~gajski #12;Specification and Validation of New Control Algorithms for Electric Drives using SpecC Language://www.cecs.uci.edu/~gajski Abstract Today, the shortest time-to-market in the electric drives industries is being a pressing

  14. Neuro-Fuzzy Controller of a Sensorless PM Motor Drive For Washing Machines

    E-Print Network [OSTI]

    Neuro-Fuzzy Controller of a Sensorless PM Motor Drive For Washing Machines Kasim M. Al towards the adoption of direct drive washing machines utilizing PM motors is increasing due and performance of a sensorless PM motor drive for washing machines. An implicit rotor position detection unit

  15. Power Electronics and Electrical Drives Prof. Dr.-Ing. Joachim Bcker

    E-Print Network [OSTI]

    Hellebrand, Sybille

    vehiclesElectric vehicles RailCab Power Electronics Switched-mode power supplies High efficiency Drives and Electric Vehicles Power Electronics and Electrical Drives 5 Prof. Dr.-Ing. Joachim BöckerPower Electronics and Electrical Drives Prof. Dr.-Ing. Joachim Böcker Research Topics Mechatronic

  16. Drive actuation in active control of centrifugal compressors Jan Tommy Gravdahl and Olav Egeland

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    Drive actuation in active control of centrifugal compressors Jan Tommy Gravdahl and Olav Egeland-1375 Billingstad NORWAY CompressorShaft Electric drive Active surge control law Shaft speed Compressor performance control Figure 1: Active surge control using drive 1 Introduction Traditionally, centrifugal

  17. Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains

    E-Print Network [OSTI]

    Paderborn, Universität

    Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains Wilhelm Peters, Tobias Huber, Joachim Böcker Power Electronics and Electrical Drives, Paderborn automotive traction drives are a wide speed range, a wide constant-power operation range and high efficiency

  18. The Design of a Novel Prismatic Drive for a Three-DOF Parallel-Kinematics Machine

    E-Print Network [OSTI]

    Boyer, Edmond

    The Design of a Novel Prismatic Drive for a Three-DOF Parallel-Kinematics Machine D. Chablat1 , J.Chablat@irccyn.ec-nantes.fr angeles@cim.mcgill.ca April 7, 2011 Abstract The design of a novel prismatic drive is reported on a common translating follower. The design of Slide-o-Cam was reported elsewhere. This drive thus provides

  19. Al-Shihabi and Mourant 1 Toward More Realistic Driving Behavior Models for Autonomous

    E-Print Network [OSTI]

    Al-Shihabi and Mourant 1 Toward More Realistic Driving Behavior Models for Autonomous Vehicles * 250) = 7,474 #12;Al-Shihabi and Mourant 2 Toward More Realistic Driving Behavior Models for Autonomous Vehicles in Driving Simulators ABSTRACT Autonomous vehicles are one of the most, if not the most

  20. Direct-Drive Inertial Confinement Fusion Research at the Laboratory for Laser Energetics

    E-Print Network [OSTI]

    beams Relative size 240 ft National Ignition Facility (NIF) 1.8 MJ 192 beams NIF The National Ignition (NIF) is predicted to achieve high-gain (~40). · Direct drive targets are predicted to ignite on the NIF while it is in x-ray-drive configuration with polar direct drive (PDD). · Fully integrated fast

  1. Testing Small Wind Turbine Generators: Design of a Driving Dynamometer Stephen Rehmeyer Pepe

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Testing Small Wind Turbine Generators: Design of a Driving Dynamometer by Stephen Rehmeyer Pepe Sc, Berkeley Spring 2007 #12;Testing Small Wind Turbine Generators: Design of a Driving Dynamometer Copyright c 2007 by Stephen Rehmeyer Pepe #12;Abstract Testing Small Wind Turbine Generators: Design of a Driving

  2. Driving Smart Growth: Electric Vehicle Adoption and OffPeak Electricity Rates

    E-Print Network [OSTI]

    Holsinger, Kent

    Driving Smart Growth: Electric Vehicle Adoption and OffPeak Electricity Rates Peter Driving Smart Growth: Electric Vehicle Adoption Page 2 Executive Summary Reducing our dependence to electric vehicles (EVs)1 is core to reducing reliance on fossil fuels and driving smart growth

  3. Impact of Inductor Placement on the Performance of Adjustable Speed Drives Under Input Voltage Unbalance and

    E-Print Network [OSTI]

    Lipo, Thomas

    Engineering Dr. Madison, WI 53706 #12;IEEE 2005 International Electric Machines and Drives Conference (IEMDC on the induction machine performance characteristics, but the presence of an LC filter in the drive's input2005-07 Impact of Inductor Placement on the Performance of Adjustable Speed Drives Under Input

  4. Can The Natario Warp Drive Explain The OPERA Superluminal Neutrino At CERN??

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Can The Natario Warp Drive Explain The OPERA Superluminal Neutrino At CERN?? Fernando Loup of the micro Warp Drive:Microscopical particle-sized Warp Bubbles carrying inside sub-atomic particles Universe after the Big Bang and they used the Alcubierre Warp Drive geometry in their mathematical model

  5. The Alcubierre Warp Drive using Lorentz Boosts according to the Harold White Spacetime Metric potential .

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Alcubierre Warp Drive using Lorentz Boosts according to the Harold White Spacetime Metric potential . Fernando Loup Daniel Rocha December 23, 2012 Abstract Warp Drives are solutions Alcubierre warp drive seems to be very attractive because allows interstellar space travel at arbitrarily

  6. The Ford-Pfenning Quantum Inequalities(QI) Analysis applied to the Natario Warp Drive Spacetime.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Ford-Pfenning Quantum Inequalities(QI) Analysis applied to the Natario Warp Drive Spacetime. Fernando Loup Residencia de Estudantes Universitas Lisboa Portugal October 15, 2012 Abstract Warp Drives Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994

  7. An On-line Method for Stator Fault Detection in Multi-phase PMSM Drives

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An On-line Method for Stator Fault Detection in Multi-phase PMSM Drives Fabien Meinguet*, Eric deals with an on-line fault detection method for multi-phase PMSM drives. The method is based an original method for detecting an abnormal asymmetrical behavior in five-phase PMSM drives and we apply

  8. Drive-bys and Trade-ups: The Impact of Crime on Residential Mobility Patterns in Los Angeles

    E-Print Network [OSTI]

    Hipp, John R; Tita, George E; Greenbaum, Robert T

    2009-01-01T23:59:59.000Z

    ed. Sage. Drive-bys and Trade-ups Flippen, Chenoa. 2004. "6):975-994. Drive-bys and Trade-ups Massey, Douglas S. , and802. Drive-bys and Trade-ups Sampson, Robert J. , Jeffrey D.

  9. UPb dating of the Madeira Suite and structural control of the albite-enriched granite at Pitinga (Amazonia, Brazil): Evolution of the A-type

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    U­Pb dating of the Madeira Suite and structural control of the albite- enriched granite at Pitinga of A-type magmatism and basin formation occurred. The albite-enriched granite emplacement occurred-enriched facies of Madeira granite (Madeira Suite) that is part of a NE­SW alignment of three granitic bodies

  10. Tensiometer, drive probe for use with environmental testing equipment, and methods of inserting environmental testing equipment into a sample

    DOE Patents [OSTI]

    Hubbell, Joel M.; Sisson, James B.

    2005-07-26T23:59:59.000Z

    A method of inserting a tensiometer into a sample, comprises providing a drive probe configured to be engaged by direct push equipment; supporting a porous member from the drive probe; and driving the drive probe into the sample using a cone penetrometer. A tensiometer comprises a drive probe configured to be engaged by direct push equipment or a cone penetrometer; a porous member supported by the drive probe; and a pressure sensor in pressure sensing relation to the porous member.

  11. Linear hydraulic drive system for a Stirling engine

    DOE Patents [OSTI]

    Walsh, Michael M. (Schenectady, NY)

    1984-02-21T23:59:59.000Z

    A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible.

  12. Validity and limitations of gas-drive relative permeability measurement

    E-Print Network [OSTI]

    Gupta, Anand Kumar

    1971-01-01T23:59:59.000Z

    . It was found that the K /K g 0 calculated from the gas-drive data, neglecting capillary pressure gradients, could be in error by more than 100 percent of the true values if the flow rates were not high enough to minimize the effect iv of capillary.... g 0 Ie In the literature of petroleum technology, Wyckoff, et al. , were among the first to develop the relative permeability concept and to show experimentally that oil, gas, and water can flow simultaneously through a porous medium in a precise...

  13. A `warp drive' with more reasonable total energy requirements

    E-Print Network [OSTI]

    Chris Van Den Broeck

    1999-09-21T23:59:59.000Z

    I show how a minor modification of the Alcubierre geometry can dramatically improve the total energy requirements for a `warp bubble' that can be used to transport macroscopic objects. A spacetime is presented for which the total negative mass needed is of the order of a few solar masses, accompanied by a comparable amount of positive energy. This puts the warp drive in the mass scale of large traversable wormholes. The new geometry satisfies the quantum inequality concerning WEC violations and has the same advantages as the original Alcubierre spacetime.

  14. The warp drive: hyper-fast travel within general relativity

    E-Print Network [OSTI]

    Miguel Alcubierre

    2000-09-05T23:59:59.000Z

    It is shown how, within the framework of general relativity and without the introduction of wormholes, it is possible to modify a spacetime in a way that allows a spaceship to travel with an arbitrarily large speed. By a purely local expansion of spacetime behind the spaceship and an opposite contraction in front of it, motion faster than the speed of light as seen by observers outside the disturbed region is possible. The resulting distortion is reminiscent of the ``warp drive'' of science fiction. However, just as it happens with wormholes, exotic matter will be needed in order to generate a distortion of spacetime like the one discussed here.

  15. Bichromatic Driving of a Solid State Cavity QED System

    E-Print Network [OSTI]

    Alexander Papageorge; Arka Majumdar; Erik D. Kim; Jelena Vuckovic

    2011-08-27T23:59:59.000Z

    The bichromatic driving of a solid state cavity quantum electrodynamics system is used to probe cavity dressed state transitions and observe coherent interaction between the system and the light field. We theoretically demonstrate the higher order cavity-dressed states, supersplitting, and AC stark shift in a solid state system comprised of a quantum dot strongly coupled to a photonic crystal cavity for on- and far off-resonant cases. For the off-resonant case, phonons mediate off-resonant coupling between the quantum dot and the photonic resonator, a phenomenon unique to solid state cavity quantum electrodynamics.

  16. Protein folding: A complex potential for the driving force

    E-Print Network [OSTI]

    Chekmarev, Sergei F

    2013-01-01T23:59:59.000Z

    Using the Helmholtz decomposition of the vector field of folding fluxes in a reduced space of collective variables, a potential of the driving force for protein folding is determined. The potential has two components and can be written as a complex function. One component is responsible for the source and sink of the folding flows (representing, respectively, the unfolded states and the native state of the protein), and the other accounts for the vorticity of the flow that is produced at the boundaries of the main flow by the contact of the moving folding "fluid" with the quiescent surroundings. The theoretical consideration is illustrated by calculations for a model $\\beta$-hairpin protein.

  17. Electric Drive Transportation Association Conference | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergyIDIQ Contract ESPC IDIQEnergyGovernment Officials.Electric Drive

  18. Do You Drive a Hybrid Electric Vehicle? | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergy CooperationRequirements Matrix U.S. DepartmentBaseloadCenturyDistribution:Drive a Hybrid

  19. Airport Drive, Missouri: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergy Information LightningAiken ElectricIncDrive, Missouri: Energy

  20. Driving Transformation to Energy Efficient Buildings:Policies and Actions |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (The followingDirect EnergyOrganization ofVirginiaYou areDrive5Open

  1. Blood Drive collects 44 units | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply forBiosurveillance A LosBlood Drive collects 44

  2. American Red Cross Blood Drive Hanford Health and Safety Exposition

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone by E-mail ShareRed Cross Blood Drive Hanford Health and Safety

  3. System studies of rf current drive for MST

    SciTech Connect (OSTI)

    Anderson, J. K.; Burke, D. R.; Forest, C. B.; Goetz, J. A.; Hendries, E. R.; Seltzman, A. H.; Thomas, M. A. [Department of Physics, University of Wisconsin, Madison, WI (United States); Diem, S. [Oak Ridge National Laboratory, Oak Ridge TN (United States); Harvey, R. W. [CompX, Del Mar, CA (United States); Kaufman, M. C. [Department of Physics, University of Wisconsin, Madison, WI (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    2011-12-23T23:59:59.000Z

    Two rf schemes are being studied on the MST reversed field pinch for their potential in current profile control experiments. MHD modeling has shown that a substantial externally-driven off axis parallel current can improve stability of the dominant core tearing modes. A radially localized axisymmetric population of fast electrons has been observed by SXR emission during LH injection (100kW at 800MHz), and is consistent with CQL3D modeling which predicts a small driven current. Computational work suggests that doubling the input power will statistically improve the LH-induced SXR signal to background ratio, and that about 2MW of injected power (an order of magnitude increase) will drive enough current for stabilization of tearing modes. Additionally, a 1 MW 5.5 GHz electron Bernstein wave (EBW) experiment is under construction, which utilizes a very simple and compact antenna compatible with the demands of the RFP. EBW allows access to electron cyclotron heating and current drive in the overdense plasma. Coupling of the external electromagnetic wave to the EBW has been demonstrated, and initial tests at {approx}100kW power have produced a small, localized xray flux consistent with rf heating and high diffusivity of fast electrons. Computational work is currently underway to answer the very important questions of how much power is required, and what level of electron diffusivity is tolerable, to generate a consequential amount of EBW current.

  4. Inflow performance relationships for solution-gas-drive reservoirs

    SciTech Connect (OSTI)

    Camacho-V, R.G.; Raghavan, R.

    1989-05-01T23:59:59.000Z

    In this theoretical study, a numerical model was used to examine the influence of pressure level and skin factor on the inflow performance relationships (IPR's) of wells producing under solution-gas-drive systems. Examination of the synthetic deliverability curves suggests that the exponent of the deliverability curve is a function of time and that the exponent is usually greater than unity. The implication of this observation to field data is discussed. The accuracy of procedures given in the literature to predict oilwell deliverabilities is also examined. It is shown that these methods can be used to predict future performance provided that the exponent of the deliverability curve is known and that extrapolations over large time ranges are avoided. If single-point tests are used to predict future performance (such tests assume that the exponent of the deliverability curve is constant), then errors in predictions will be minimized. Although relative permeability and fluid property data are required, the Muskat material-balance equation and the assumption that GOR is independent of distance can be used to predict future production rates. This method avoids problems associated with other methods in the literature and always yields reliable results. New methods to modify the IPR curve to incorporate changes in skin factor are presented. A new flow-efficiency definition based on the structure of the deliverability equations for solution-gas-drive reservoirs is proposed. This definition avoids problems that result when the currently available methods are applied to heavily stimulated wells.

  5. The Alcubierre Warp Drive: On the Matter of Matter

    E-Print Network [OSTI]

    McMonigal, Brendan; O'Byrne, Philip

    2012-01-01T23:59:59.000Z

    The Alcubierre warp drive allows a spaceship to travel at an arbitrarily large global velocity by deforming the spacetime in a bubble around the spaceship. Little is known about the interactions between massive particles and the Alcubierre warp drive, or the effects of an accelerating or decelerating warp bubble. We examine geodesics representative of the paths of null and massive particles with a range of initial velocities from -c to c interacting with an Alcubierre warp bubble travelling at a range of globally subluminal and superluminal velocities on both constant and variable velocity paths. The key results for null particles match what would be expected of massive test particles as they approach +/- c. The increase in energy for massive and null particles is calculated in terms of v_s, the global ship velocity, and v_p, the initial velocity of the particle with respect to the rest frame of the origin/destination of the ship. Particles with positive v_p obtain extremely high energy and velocity and becom...

  6. Modular PM Motor Drives for Automotive Traction Applications

    SciTech Connect (OSTI)

    Su, G.J.

    2001-10-29T23:59:59.000Z

    This paper presents modular permanent magnet (PM) motor drives for automotive traction applications. A partially modularized drive system consisting of a single PM motor and multiple inverters is described. The motor has multiple three-phase stator winding sets and each winding set is driven with a separate three-phase inverter module. A truly modularized inverter and motor configuration based on an axial-gap PM motor is then introduced, in which identical PM motor modules are mounted on a common shaft and each motor module is powered by a separate inverter module. The advantages of the modular approach for both inverter and motor include: (1) power rating scalability--one design meets different power requirements by simply stacking an adequate number of modules, thus avoiding redesigning and reducing the development cost, (2) increased fault tolerance, and (3) easy repairing. A prototype was constructed by using two inverters and an axial-gap PM motor with two sets of three-phase stat or windings, and it is used to assist the diesel engine in a hybrid electric vehicle converted from a Chevrolet Suburban. The effect of different pulse-width-modulation strategies for both motoring and regenerative modes on current control is analyzed. Torque and regenerative control algorithms are implemented with a digital signal processor. Analytical and initial testing results are included in the paper.

  7. Penetration of lower hybrid current drive waves in tokamaks

    SciTech Connect (OSTI)

    Horton, W. [The University of Texas at Austin, Austin, Texas 78712 (United States) [The University of Texas at Austin, Austin, Texas 78712 (United States); Aix-Marseille University, 58, Bd Charles Livon, 13284 Marseille (France); Goniche, M.; Peysson, Y.; Decker, J.; Ekedahl, A.; Litaudon, X. [CEA, IRFM, F-13108 Saint-Paul-Lez Durance (France)] [CEA, IRFM, F-13108 Saint-Paul-Lez Durance (France)

    2013-11-15T23:59:59.000Z

    Lower hybrid (LH) ray propagation in toroidal plasma is shown to be controlled by combination of the azimuthal spectrum launched by the antenna, the poloidal variation of the magnetic field, and the scattering of the waves by the drift wave fluctuations. The width of the poloidal and radial radio frequency wave spectrum increases rapidly as the rays penetrate into higher density and scatter from the drift waves. The electron temperature gradient (ETG) spectrum is particularly effective in scattering the LH waves due to its comparable wavelengths and phase velocities. ETG turbulence is also driven by the radial gradient of the electron current profile giving rise to an anomalous viscosity spreading the LH driven plasma currents. The LH wave scattering is derived from a Fokker-Planck equation for the distribution of the ray trajectories with diffusivities derived from the drift wave fluctuations. The condition for chaotic diffusion for the rays is derived. The evolution of the poloidal and radial mode number spectrum of the lower hybrid waves are both on the antenna spectrum and the spectrum of the drift waves. Antennas launching higher poloidal mode number spectra drive off-axis current density profiles producing negative central shear [RS] plasmas with improved thermal confinement from ETG transport. Core plasma current drive requires antennas with low azimuthal mode spectra peaked at m = 0 azimuthal mode numbers.

  8. 2014-11-22T19:49:00-07:00 Colorado 0 10600246 18070049

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place:ReferenceEditWisconsin:YBR14Information 20 AAC

  9. The analysis of Lobo and Visser applied to both Natario and Casimir warp drives. Physical reactions of gravitational repulsive behavior

    E-Print Network [OSTI]

    Boyer, Edmond

    The analysis of Lobo and Visser applied to both Natario and Casimir warp drives. Physical reactions of General Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994 and the Natario warp drive discovered in 2001. The major drawback concerning warp drives

  10. Ford-Pfenning Quantum Inequalities(QI) in the Natario Warp Drive Spacetime using the Planck Length Scale.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Ford-Pfenning Quantum Inequalities(QI) in the Natario Warp Drive Spacetime using the Planck Length Warp Drives are solutions of the Einstein Field Equations that allows superluminal travel within drive discovered in 1994 and the Natario warp drive discovered in 2001. However as stated by both

  11. Numerical Integration of the Negative Energy Density in the Natario Warp Drive Spacetime using 3 different Natario Shape Functions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Numerical Integration of the Negative Energy Density in the Natario Warp Drive Spacetime using 3 6, 2013 Abstract Warp Drives are solutions of the Einstein Field Equations that allows superluminal: The Alcubierre warp drive discovered in 1994 and the Natario warp drive discovered in 2001. However as stated

  12. Overview of the Safety Issues Associated with the Compressed Natural Gas Fuel System and Electric Drive System in a Heavy Hybrid Electric Vehicle

    SciTech Connect (OSTI)

    Nelson, S.C.

    2002-11-14T23:59:59.000Z

    This report evaluates the hazards that are unique to a compressed-natural-gas (CNG)-fueled heavy hybrid electric vehicle (HEV) design compared with a conventional heavy vehicle. The unique design features of the heavy HEV are the CNG fuel system for the internal-combustion engine (ICE) and the electric drive system. This report addresses safety issues with the CNG fuel system and the electric drive system. Vehicles on U. S. highways have been propelled by ICEs for several decades. Heavy-duty vehicles have typically been fueled by diesel fuel, and light-duty vehicles have been fueled by gasoline. The hazards and risks posed by ICE vehicles are well understood and have been generally accepted by the public. The economy, durability, and safety of ICE vehicles have established a standard for other types of vehicles. Heavy-duty (i.e., heavy) HEVs have recently been introduced to U. S. roadways, and the hazards posed by these heavy HEVs can be compared with the hazards posed by ICE vehicles. The benefits of heavy HEV technology are based on their potential for reduced fuel consumption and lower exhaust emissions, while the disadvantages are the higher acquisition cost and the expected higher maintenance costs (i.e., battery packs). The heavy HEV is more suited for an urban drive cycle with stop-and-go driving conditions than for steady expressway speeds. With increasing highway congestion and the resulting increased idle time, the fuel consumption advantage for heavy HEVs (compared with conventional heavy vehicles) is enhanced by the HEVs' ability to shut down. Any increase in fuel cost obviously improves the economics of a heavy HEV. The propulsion system for a heavy HEV is more complex than the propulsion system for a conventional heavy vehicle. The heavy HEV evaluated in this study has in effect two propulsion systems: an ICE fueled by CNG and an electric drive system with additional complexity and failure modes. This additional equipment will result in a less reliable vehicle with a lower availability than a conventional heavy vehicle. Experience with heavy HEVs to date supports this observation. The key safety concern for the electric drive system is the higher voltages and currents that are required in the electric drive system. Faults that could expose personnel to these electric hazards must be considered, addressed, and minimized. The key issue for the CNG-fueled ICE is containment of the high-pressure natural gas. Events that can result in a release of natural gas with the possibility of subsequent ignition are of concern. These safety issues are discussed. The heavy HEV has the potential to have a safety record that is comparable to that of the conventional vehicle, but adequate attention to detail will be required.

  13. Heel and toe driving on fuel cell vehicle

    DOE Patents [OSTI]

    Choi, Tayoung; Chen, Dongmei

    2012-12-11T23:59:59.000Z

    A system and method for providing nearly instantaneous power in a fuel cell vehicle. The method includes monitoring the brake pedal angle and the accelerator pedal angle of the vehicle, and if the vehicle driver is pressing both the brake pedal and the accelerator pedal at the same time and the vehicle is in a drive gear, activating a heel and toe mode. When the heel and toe mode is activated, the speed of a cathode compressor is increased to a predetermined speed set-point, which is higher than the normal compressor speed for the pedal position. Thus, when the vehicle brake is removed, the compressor speed is high enough to provide enough air to the cathode, so that the stack can generate nearly immediate power.

  14. Improvements in EMC performance of inverter-fed motor drives

    SciTech Connect (OSTI)

    Zhong, E.; Lipo, T.A. [Univ. of Wisconsin, Madison, WI (United States). Dept. of Electrical and Computer Engineering

    1995-11-01T23:59:59.000Z

    An experimental investigation of conducted radio-noise emission from a conventional pulse width modulated (PWM) inverter of medium power feeding an induction motor is described. It is determined that the inverter system generates considerable impulse currents through the power leads feeding the system resulting in serious conducted electromagnetic interference (EMI) problems and significant voltage waveform distortion in the power system. The dominant emission sources in the system are identified. A proposed model of the drive system for the purpose of evaluation of EMI are developed. Several low-cost strategies for improvement in EMC performance of the PWM inverter are then proposed. Experimental results demonstrate that disturbance from the modified system can be dramatically reduced and that the EMC performance of the system has come very close to meeting the IEC CISPR and FCC limits on conducted emissions for digital devices.

  15. Payback enormous for variable-frequency motor drives

    SciTech Connect (OSTI)

    Collins, S.

    1993-02-01T23:59:59.000Z

    The City Utilities of Springfield's (Mo) 200-MW Southwest power station is a 200-MW plant anchored around a single coal-fired steam generator and its major support systems, including an electrostatic precipitator (ESP) and two wet limestone scrubbers. In the late 1980s, engineers at Southwest began evaluating the feasibility of installing variable-frequency drives (VFD) to reduce the plant's parasitic load and boost overall performance. This article reports on VFDs installed to control the induced draft (i-d) and forced-draft (f-d) fan motors at the plant. The devices have surpassed the utility's expectations by reducing parasitic load, improving combustion control, and increasing overall plant reliability. Virtually every major plant component--including the ESPs and scrubbers--performs better as a result of the retrofit.

  16. Can Protostellar Jets Drive Supersonic Turbulence in Molecular Clouds?

    E-Print Network [OSTI]

    Robi Banerjee; Ralf S. Klessen; Christian Fendt

    2007-06-25T23:59:59.000Z

    Jets and outflows from young stellar objects are proposed candidates to drive supersonic turbulence in molecular clouds. Here, we present the results from multi-dimensional jet simulations where we investigate in detail the energy and momentum deposition from jets into their surrounding environment and quantify the character of the excited turbulence with velocity probability density functions. Our study include jet--clump interaction, transient jets, and magnetised jets. We find that collimated supersonic jets do not excite supersonic motions far from the vicinity of the jet. Supersonic fluctuations are damped quickly and do not spread into the parent cloud. Instead subsonic, non-compressional modes occupy most of the excited volume. This is a generic feature which can not be fully circumvented by overdense jets or magnetic fields. Nevertheless, jets are able to leave strong imprints in their cloud structure and can disrupt dense clumps. Our results question the ability of collimated jets to sustain supersonic turbulence in molecular clouds.

  17. Drive reinforcement neural networks for reactor control. Final report

    SciTech Connect (OSTI)

    Williams, J.G.; Jouse, W.C.

    1995-02-01T23:59:59.000Z

    In view of the loss of the third year funding, the scope of the project goals has been revised. The revision in project scope no longer allows for the detailed modeling of the EBR-11 start-up task that was originally envisaged. The authors are continuing, however, to model the control of the rapid power ascent of the University of Arizona TRIGA reactor using a model-based controller and using a drive reinforcement neural network. These will be combined during the concluding period of the project into a hierarchical control architecture. In addition, the modeling of a PWR feedwater heater has continued, and an autonomous fault-tolerant software architecture for its control has been proposed.

  18. Veeco Develops Tools to Drive Down HBLED Costs

    Broader source: Energy.gov [DOE]

    Veeco is working in partnership with Sandia National Laboratories and Philips Lumileds to drive down the cost of high-brightness LEDs by implementing process simulation tools and by improving temperature measurement and control methods to increase MOCVD yield. Veeco is working with Sandia to reduce the cost of ownership (COO) of the deposition equipment by, for example, using a heated flow flange, which reduces the consumption of the expensive precursors (ammonia, nitrogen, hydrogen, and the metal organics) by 40 percent. Two different types of pyrometers developed by Sandia and Veeco are being tested by Philips Lumileds to control the substrate temperature, which helps determine the color of the LED. If all works according to plan, the COO will be reduced by at least 75 percent by improving throughput, growth uniformity, yield, and temperature stabilization.

  19. Consensus formation: The case of using cell phones while driving

    E-Print Network [OSTI]

    Rhner, B M

    2005-01-01T23:59:59.000Z

    Several models (including the widely used Sznajd model) have been proposed in order to describe the social phenomenon of consensus formation. The objective of the present paper is to supplement the simulations based on these models with a ``real world simulation''; it considers a situation which can be considered as an ideal laboratory for analyzing consensus formation, namely the authorization or prohibition of using cell phones while driving. This is a convenient laboratory for several reasons (i) The issue was raised in similar terms in all industrialized countries, a circumstance that facilitates comparative analysis by providing a {\\it set of observations} (as opposed to single observations generated, for instance, in election contests). (ii) This is a situation where we happen to know the rule a ``rational'' agent should follow. (iii) Because the issue is a matter of life and death, the phenomenon can be considered as fairly robust with respect to various, endogenous or exogenous, sources of noise. (iv)...

  20. Rim-drive cable-aligned heliostat collector system

    DOE Patents [OSTI]

    Dolan, J.E.; Sands, T.D.

    1982-09-30T23:59:59.000Z

    Disclosed is a heliostat collector apparatus comprising at least one heliostat suspended from a plurality of longitudinally extending linkage means. An enclosure structure is disposed adjacent the heliostat and provides a means for allowing the heliostat to be substantially protected from weathering. A first drive means is operatively connected to the heliostat to effect steering thereof in at least one of first and second predetermined directions. Finally, a frame member is adapted for supporting the heliostat at an inner portion thereof. The frame includes a plurality of outer expandable portions. Each one of the expandable portions is adapted to slidably engage a corresponding one of the plurality of linkage means. The expandable portions are further adapted to allow the heliostat to be slidably moved along the linkage means in directions away from and towards the enclosure structure and to substantially reduce stress acting on the heliostat during steering.

  1. Compact vehicle drive module having improved thermal control

    DOE Patents [OSTI]

    Meyer, Andreas A.; Radosevich, Lawrence D.; Beihoff, Bruce C.; Kehl, Dennis L.; Kannenberg, Daniel G.

    2006-01-03T23:59:59.000Z

    An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support, which may be controlled in a closed-loop manner. Interfacing between circuits, circuit mounting structure, and the support provide for greatly enhanced cooling. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  2. Electric vehicle drive train with rollback detection and compensation

    DOE Patents [OSTI]

    Konrad, Charles E. (Roanoke, VA)

    1994-01-01T23:59:59.000Z

    An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared.

  3. Electric vehicle drive train with direct coupling transmission

    DOE Patents [OSTI]

    Tankersley, J.B.; Boothe, R.W.; Konrad, C.E.

    1995-04-04T23:59:59.000Z

    An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox. 6 figures.

  4. Electric vehicle drive train with direct coupling transmission

    DOE Patents [OSTI]

    Tankersley, Jerome B. (Fredericksburg, VA); Boothe, Richard W. (Roanoke, VA); Konrad, Charles E. (Roanoke, VA)

    1995-01-01T23:59:59.000Z

    An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox.

  5. Electric vehicle drive train with rollback detection and compensation

    DOE Patents [OSTI]

    Konrad, C.E.

    1994-12-27T23:59:59.000Z

    An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared. 6 figures.

  6. Surfactant based imbibition and induced solution gas drive process: investigation by nuclear magnetic resonance

    E-Print Network [OSTI]

    Cox, James Calvin

    1993-01-01T23:59:59.000Z

    drive mechanism. This imbibition and induced solution gas drive study employed nuclear magnetic resonance (NMR) spectroscopy techniques to monitor and characterize the progress of oil recovery inside the rock sample core. A specially designed core...SURFACTANT BASED IMBIBITION AND INDUCED SOLUTION GAS DRIVE PROCESS: INVESTIGATION BY NUCLEAR MAGNETIC RESONANCE A Thesis by JAMES CALVIN COX Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  7. Inflow Performance Relationships (IPR) for Solution Gas Drive Reservoirs -- a Semi-Analytical Approach

    E-Print Network [OSTI]

    Nass, Maria A.

    2010-07-14T23:59:59.000Z

    INFLOW PERFORMANCE RELATIONSHIPS (IPR) FOR SOLUTION GAS DRIVE RESERVOIRS ? A SEMI-ANALYTICAL APPROACH A Thesis by MAR?A ALEJANDRA NASS Submitted to the Office of Graduate Studies of Texas A&M University... Inflow Performance Relationships (IPR) For Solution Gas Drive Reservoirs ? a Semi-Analytical Approach Copyright 2010 Mar?a Alejandra Nass INFLOW PERFORMANCE RELATIONSHIPS (IPR) FOR SOLUTION GAS DRIVE RESERVOIRS ? A SEMI...

  8. High-Power Converters and AC Drives IEEE PESC2005 Tutorial

    E-Print Network [OSTI]

    Wu, Bin

    @ee.ryerson.ca http://www.ee.ryerson.ca/~bwu/ 2 High-Power Converters and AC Drives 1. Introduction 2. Cascaded H-Bridge Drives High-Power Semiconductor Devices High-Power Converters and AC Drives Bin Wu 4High Multilevel Voltage Source Inverters N dC Cascaded H-bridge (CHB) Inverter dC Two Level Inverter dC Flying

  9. An investigation of irregular switching in three phase adjustable speed motor drives without neutral connection

    E-Print Network [OSTI]

    Arefeen, Shamsal

    1990-01-01T23:59:59.000Z

    Phase Adjustable Speed Motor Drives without Neutral Connection. (May 1990) Md. Shamsul Arefeen, B. S. , Bangladesh Univ. of Engg. 8z Technology Chair of Advisory Committee: Dr. M. Ehsani There are many industrial applications where variable speed... There are many industrial application where variable speed drives of electrical ma, - chines are needed. This requirement of high performance electric drives can be met either by a. dc or by an ac machine. Due to cost and ease of control, high performance...

  10. The Alcubierre Warp Drive: On the Matter of Matter

    E-Print Network [OSTI]

    Brendan McMonigal; Geraint F. Lewis; Philip O'Byrne

    2012-02-26T23:59:59.000Z

    The Alcubierre warp drive allows a spaceship to travel at an arbitrarily large global velocity by deforming the spacetime in a bubble around the spaceship. Little is known about the interactions between massive particles and the Alcubierre warp drive, or the effects of an accelerating or decelerating warp bubble. We examine geodesics representative of the paths of null and massive particles with a range of initial velocities from -c to c interacting with an Alcubierre warp bubble travelling at a range of globally subluminal and superluminal velocities on both constant and variable velocity paths. The key results for null particles match what would be expected of massive test particles as they approach +/- c. The increase in energy for massive and null particles is calculated in terms of v_s, the global ship velocity, and v_p, the initial velocity of the particle with respect to the rest frame of the origin/destination of the ship. Particles with positive v_p obtain extremely high energy and velocity and become "time locked" for the duration of their time in the bubble, experiencing very little proper time between entering and eventually leaving the bubble. When interacting with an accelerating bubble, any particles within the bubble at the time receive a velocity boost that increases or decreases the magnitude of their velocity if the particle is moving towards the front or rear of the bubble respectively. If the bubble is decelerating, the opposite effect is observed. Thus Eulerian matter is unaffected by bubble accelerations/decelerations. The magnitude of the velocity boosts scales with the magnitude of the bubble acceleration/deceleration.

  11. EERE Energy Impacts: You Can Now Drive a Fuel Cell Electric Vehicle...

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

    | Photos by Sarah Gerrity, Energy Department Sunita Satyapal Sunita Satyapal Director, Fuel Cell Technologies Office What does this mean for me? You can now drive a fuel cell...

  12. E-Print Network 3.0 - active reel drive Sample Search Results

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

    and safety of transportation, and to alleviate the impact Summary: , adjustable-speed drives, electric utility and distributed- generation applications, motor controls... , and...

  13. Impacts of Cooling Technology on Solder Fatigue for Power Modules in Electric Traction Drive Vehicles: Preprint

    SciTech Connect (OSTI)

    O'Keefe, M.; Vlahinos, A.

    2009-08-01T23:59:59.000Z

    Describes three power module cooling topologies for electric traction drive vehicles: two advanced options using jet impingement cooling and one option using pin-fin liquid cooling.

  14. Marketing and Driving Demand Collaborative: Social Media Tools and Strategies Webinar

    Broader source: Energy.gov [DOE]

    Marketing and Driving Demand Collaborative: Social Media Tools and Strategies Webinar, from the U.S. Department of Energy's Better Buildings program.

  15. E-Print Network 3.0 - automobile driving Sample Search Results

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

    - pects of driving automation. Stand 7 CLUSTER 1 Wrzburger 23. und 24. November Automobil Gipfel 12;... : The innovation consists of perdicting driver intentionality from...

  16. E-Print Network 3.0 - automated basic driving Sample Search Results

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

    Conference on Augmented Cognition, Las Vegas, NV; July 22-27, 2005. Summary: an automobile driving decision making task with 5 levels of automation ranging from fully manual...

  17. Fact #854 January 5, 2015 Driving Ranges for All-Electric Vehicles...

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

    Driving ranges for all-electric vehicles vary considerably. Based on the official Environmental Protection Agency (EPA) range values reported on window stickers, the Mitsubishi...

  18. Optimal investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules

    E-Print Network [OSTI]

    Cardoso, Goncalo

    2014-01-01T23:59:59.000Z

    management of small electric energy systems including V2Gand renewable energy sources, Electric Power Systemsof electric-drive vehicles with renewable energy, Energy,

  19. Variable speed drive as an alternative solution for a micro-hydro power plant.

    E-Print Network [OSTI]

    Akhtar, Malik Usman

    2012-01-01T23:59:59.000Z

    ?? This diploma work is mainly focused on developing the control strategy for avariable speed drive as an alternative solution to a micro-hydro power plant. (more)

  20. Progressive Dynamical Drive Train Modeling as Part of NREL Gearbox Reliability Collaborative: Preprint

    SciTech Connect (OSTI)

    Oyague, F.

    2008-07-01T23:59:59.000Z

    The Gearbox Reliabiity Collaborative seeks to integrate several numerical models into the wind turbine drive train design process. This paper describes these models.

  1. E-Print Network 3.0 - arrays driving dynamic Sample Search Results

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

    of about 10.9 GHz... of a superconducting microstrip resonator and series arrays of Josephson junctions integrated within its rf current... drive frequency. To reach a...

  2. E-Print Network 3.0 - alcohol-impaired driving behavior Sample...

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

    14 WINTER 2009 In This Issue Summary: strategies to reduce alcohol-impaired motorcycle operation for NHTSA. "One of the initiatives that CTS... with drinking and driving....

  3. Driving Simulator for Head-Up Display Evaluation: Driver's Response Time on Accident Simulation Cases

    E-Print Network [OSTI]

    Charissis, V.; Arafat, S.

    Charissis,V. Arafat,S. Chan,W. Christomanos,C. Driving Simulation Conference, DSC Asia/Pacific 2006, Tsukuba, Tokyo, Japan

  4. CP Tech Center I Iowa State University I 2711 S. Loop Dr. Suite 4700,Ames, IA 50010-8664 I 515-294-5798 FOR MORE INFORMATION

    E-Print Network [OSTI]

    CP Tech Center I Iowa State University I 2711 S. Loop Dr. Suite 4700,Ames, IA 50010-8664 I 515 calcium sulfate in the form of hemihydrate (plaster) in the cement (false set) or the uncontrolled early

  5. Using the BEopt Automated Residential Simulation Test Suite to Enable Comparative Analysis Between Energy Simulation Engines: Preprint

    SciTech Connect (OSTI)

    Tabares-Velasco, P. C.; Maguire, J.; Horowitz, S.; Christensen, C.

    2014-09-01T23:59:59.000Z

    Verification and validation are crucial software quality control procedures when developing and implementing models. This is particularly important as a variety of stakeholders rely on accurate predictions from building simulation programs. This study uses the BEopt Automated Residential Simulation Test Suite (BARTS) to facilitate comparison of two energy simulation engines across various building components and includes models that isolate the impacts of specific building components on annual energy consumption. As a case study, BARTS has been used to identify important discrepancies between the engines for several components of the building models; these discrepancies are caused by differences in the models used by the engines or coding errors.

  6. The Application of the PEBBED Code Suite to the PBMR-400 Coupled Code Benchmark - FY 2006 Annual Report

    SciTech Connect (OSTI)

    Not Available

    2006-09-01T23:59:59.000Z

    This document describes the recent developments of the PEBBED code suite and its application to the PBMR-400 Coupled Code Benchmark. This report addresses an FY2006 Level 2 milestone under the NGNP Design and Evaluation Methods Work Package. The milestone states "Complete a report describing the results of the application of the integrated PEBBED code package to the PBMR-400 coupled code benchmark". The report describes the current state of the PEBBED code suite, provides an overview of the Benchmark problems to which it was applied, discusses the code developments achieved in the past year, and states some of the results attained. Results of the steady state problems generated by the PEBBED fuel management code compare favorably to the preliminary results generated by codes from other participating institutions and to similar non-Benchmark analyses. Partial transient analysis capability has been achieved through the acquisition of the NEM-THERMIX code from Penn State University. Phase I of the task has been achieved through the development of a self-consistent set of tools for generating cross sections for design and transient analysis and in the successful execution of the steady state benchmark exercises.

  7. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System

    SciTech Connect (OSTI)

    Staunton, Robert H [ORNL; Ayers, Curtis William [ORNL; Chiasson, J. N. [University of Tennessee, Knoxville (UTK); Burress, Timothy A [ORNL; Marlino, Laura D [ORNL

    2006-05-01T23:59:59.000Z

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of providing mechanical-drive power for the vehicle. The engine can deliver a peak-power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak-power output of 50 kW over the speed range of 1200-1540 rpm. Together, this engine-motor combination has a specified peak-power output of 82 kW at a vehicle speed of 85 kilometers per hour (km/h). In operation, the 2004 Prius exhibits superior fuel economy compared to conventionally powered automobiles. To acquire knowledge and thereby improve understanding of the propulsion technology used in the 2004 Prius, a full range of design characterization studies were conducted to evaluate the electrical and mechanical characteristics of the 2004 Prius and its hybrid electric drive system. These characterization studies included (1) a design review, (2) a packaging and fabrication assessment, (3) bench-top electrical tests, (4) back-electromotive force (emf) and locked rotor tests, (5) loss tests, (6) thermal tests at elevated temperatures, and most recently (7) full-design-range performance testing in a controlled laboratory environment. This final test effectively mapped the electrical and thermal results for motor/inverter operation over the full range of speeds and shaft loads that these assemblies are designed for in the Prius vehicle operations. This testing was undertaken by the Oak Ridge National Laboratory (ORNL) as part of the U.S. Department of Energy (DOE) - Energy Efficiency and Renewable Energy (EERE) FreedomCAR and Vehicle Technologies (FCVT) program through its vehicle systems technologies subprogram. The thermal tests at elevated temperatures were conducted late in 2004, and this report does not discuss this testing in detail. The thermal tests explored the derating of the Prius motor design if operated at temperatures as high as is normally encountered in a vehicle engine. The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. A separate, comprehensive report on this thermal control study is available [1].

  8. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System

    SciTech Connect (OSTI)

    Staunton, R.H.; Ayers, C.W.; Chiasson, J.N. (U Tennessee-Knoxville); Burress, B.A. (ORISE); Marlino, L.D.

    2006-05-01T23:59:59.000Z

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of providing mechanical-drive power for the vehicle. The engine can deliver a peak-power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak-power output of 50 kW over the speed range of 1200-1540 rpm. Together, this engine-motor combination has a specified peak-power output of 82 kW at a vehicle speed of 85 kilometers per hour (km/h). In operation, the 2004 Prius exhibits superior fuel economy compared to conventionally powered automobiles. To acquire knowledge and thereby improve understanding of the propulsion technology used in the 2004 Prius, a full range of design characterization studies were conducted to evaluate the electrical and mechanical characteristics of the 2004 Prius and its hybrid electric drive system. These characterization studies included (1) a design review, (2) a packaging and fabrication assessment, (3) bench-top electrical tests, (4) back-electromotive force (emf) and locked rotor tests, (5) loss tests, (6) thermal tests at elevated temperatures, and most recently (7) full-design-range performance testing in a controlled laboratory environment. This final test effectively mapped the electrical and thermal results for motor/inverter operation over the full range of speeds and shaft loads that these assemblies are designed for in the Prius vehicle operations. This testing was undertaken by the Oak Ridge National Laboratory (ORNL) as part of the U.S. Department of Energy (DOE)-Energy Efficiency and Renewable Energy (EERE) FreedomCAR and Vehicle Technologies (FCVT) program through its vehicle systems technologies subprogram. The thermal tests at elevated temperatures were conducted late in 2004, and this report does not discuss this testing in detail. The thermal tests explored the derating of the Prius motor design if operated at temperatures as high as is normally encountered in a vehicle engine. The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. A separate, comprehensive report on this thermal control study is available [1].

  9. Symmetrical and Asymmetrical H-Bridge Multilevel Inverter for DTC Induction Motor Drive

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Symmetrical and Asymmetrical H-Bridge Multilevel Inverter for DTC Induction Motor Drive Automotive--Several works have been reported in the literature on multilevel inverters topologies, control techniques drives associated to three-phase multilevel inverter. This paper presents then a comparison study

  10. Ratchet Effect and Nonlinear Transport for Particles on Random Substrates with Crossed ac Drives

    E-Print Network [OSTI]

    C. Reichhardt; C. J. Olson Reichhardt

    2005-09-13T23:59:59.000Z

    We show in simulations that overdamped interacting particles in two dimensions with a randomly disordered substrate can exhibit novel nonequilibrium transport phenomena including a transverse ratchet effect, where a combined dc drive and circular ac drive produce a drift velocity in the direction transverse to the applied dc drive. The random disorder does not break any global symmetry; however, in two dimensions, symmetry breaking occurs due to the chirality of the circular drive. In addition to inducing the transverse ratchet effect, increasing the ac amplitude also strongly affects the longitudinal velocity response and can produce what we term an overshoot effect where the longitudinal dc velocity is higher in the presence of the ac drive than it would be for a dc drive alone. We also find a dynamical reordering transition upon increasing the ac amplitude. In the absence of a dc drive, it is possible to obtain a ratchet effect when the combined ac drives produce particle orbits that break a reflection symmetry. In this case, as the ac amplitude increases, current reversals can occur. These effects may be observable for vortices in type II superconductors as well as for colloids interacting with random substrates.

  11. PHYSICAL REVIEW E 86, 036314 (2012) ac electric fields drive steady flows in flames

    E-Print Network [OSTI]

    Heller, Eric

    PHYSICAL REVIEW E 86, 036314 (2012) ac electric fields drive steady flows in flames Aaron M. Drews June 2012; published 20 September 2012) We show that time-oscillating electric fields applied-averaged force that drives the steady flows observed experimentally. A quantitative model describes the response

  12. Space Vector PWM Control Synthesis for a H-Bridge Drive in Electric Vehicles

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Space Vector PWM Control Synthesis for a H-Bridge Drive in Electric Vehicles A. Kolli1 , Student Magnet Synchronous Machine in Electric Vehicle application. First, a short survey of existing power control methods are compared with three innovative ones using EV-drive specifications in the normal

  13. ELECTRIC DRIVE BY `25: How California Can Catalyze Mass Adoption of

    E-Print Network [OSTI]

    Kammen, Daniel M.

    ELECTRIC DRIVE BY `25: How California Can Catalyze Mass Adoption of Electric Vehicles by 2025@law.berkeley.edu. #12;1UCLA Law \\ Berkeley Law ELECTRIC DRIVE BY `25: How California Can Catalyze Mass Adoption of Electric Vehicles by 2025 Executive Summary: The Importance of Electrifying Vehicles California will need

  14. A Method for Impact Assessment of Faults on the Performance of Field-Oriented Control Drives

    E-Print Network [OSTI]

    Liberzon, Daniel

    , reliability of a motor drive can be explored via the emerging field of thermo- electrical analysis [3A Method for Impact Assessment of Faults on the Performance of Field-Oriented Control Drives Grainger Center for Electric Machinery and Electromechanics Department of Electrical and Computer

  15. Robust Generator System Using PM Assisted Synchronous Reluctance Generator with Current-fed Drive

    E-Print Network [OSTI]

    Baek, Jeihoon

    2011-02-22T23:59:59.000Z

    action by making the PMa-SynRG operates as a generator, rectifying the phase voltages by means of the three-phase rectifier and feeding the power into the load. These features make the current-fed drive a good candidate for driving any type of synchronous...

  16. Head tilt during driving DANIEL C. ZIKOVITZ and LAURENCE R. HARRIS *

    E-Print Network [OSTI]

    Harris, Laurence R.

    Head tilt during driving DANIEL C. ZIKOVITZ ² and LAURENCE R. HARRIS² * Departments of ² Biology and Psychology, York University, Toronto, Ontario M3J 1P3, Canada Keywords: Driving behaviour; Head tilt; Vision with the visually-available estimate of the curvature of the road (r 2 = 0.86) but not with the centripetal force (r

  17. Electric vehicles: How much range is required for a day's driving? Nathaniel S. Pearre a,

    E-Print Network [OSTI]

    Firestone, Jeremy

    Electric vehicles: How much range is required for a day's driving? Nathaniel S. Pearre a, , Willett online xxxx Keywords: Electric vehicle Plug-in vehicle Daily driving range Range requirement Trip timing require- ments of electric vehicles (EVs). We conservatively assume that EV drivers would not change

  18. BATTERY-POWERED, ELECTRIC-DRIVE VEHICLES PROVIDING BUFFER STORAGE FOR PV CAPACITY VALUE

    E-Print Network [OSTI]

    Perez, Richard R.

    BATTERY-POWERED, ELECTRIC-DRIVE VEHICLES PROVIDING BUFFER STORAGE FOR PV CAPACITY VALUE Steven requirements that will result in a number of new battery-powered electric drive vehicles being sold beginning as vehicle-to-grid (V2G) power. In a recent press release, the Electric Power Research Institute speculates

  19. OMEGA ICF experiments and preparation for direct drive ignition on NIF

    E-Print Network [OSTI]

    -DT' design: a spherical target of Current address: Lawrence Livermore National Laboratory, Livermore, CAOMEGA ICF experiments and preparation for direct drive ignition on NIF R.L. McCrorya , R.E. Bahra) is investigating various theoretical aspects of a direct drive National Ignition Facility (NIF) ignition target

  20. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Elevator Drive Systems Energy Consumption Study Report

    E-Print Network [OSTI]

    Energy Consumption Study Report Benny ChunYin Chan University of British Columbia EECE 492 April 6th the current status of the subject matter of a project/report". #12;Elevator Drive Systems Energy Consumption Study Report April 2012 0 2012 Elevator Drive Systems Energy Consumption Study Report Benny CY Chan UBC

  1. An Analysis of Hard Drive Energy Consumption Anthony Hylick, Ripduman Sohan, Andrew Rice, and Brian Jones

    E-Print Network [OSTI]

    Cambridge, University of

    An Analysis of Hard Drive Energy Consumption Anthony Hylick, Ripduman Sohan, Andrew Rice, and Brian consumed by the electronics of a drive is just as important as the mechanical energy consumption; (ii consumption was a concern pri- marily for mobile computing domains. The rising cost of energy and increased

  2. Drive-by-Wireless Teleoperation with Network QoS Adaptation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    tele- operation of drive-by-wireless applications, which utilize energy concepts and impose an adaptation scheme for drive- by-wireless teleoperation of an electric vehicle. The performance variation due to the varying time delay and packet losses is investigated and catered for by using an adaptive gain scheduling

  3. FHP troopers barred from talking on hand-held cell phones while driving

    E-Print Network [OSTI]

    Belogay, Eugene A.

    FHP troopers barred from talking on hand-held cell phones while driving October 04, 2010|By Jerome a cell phone while talking and driving. Eight other states, including California and New York, have attention." Troopers may use their cell phones only with a hands-free device. "Members must be able

  4. Plasma channel from EP beam Direct-drive ignition is the main thrust in LLE

    E-Print Network [OSTI]

    -drive ignition; this is not an optimal configuration fordirectdrivethatrequiressphericalillumination I2093 for direct-drive experiments; it is coupled to a high-power, short-pulse laser (OMEGA EP) to explore advanced 26 kJ Scale 1:70 in energy Scale 1:1 Scale 1:1 #12;Hydro-equivalentignitiononOMEGA #12;Ignition

  5. Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers

    E-Print Network [OSTI]

    LBNL-58636 Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable Efficient Cleanrooms Efficient HVAC Water Systems: Variable-Speed-Drive Chillers Tengfang Xu Contents HVAC.................................................................................................................................... 6 #12;HVAC Water Systems Variable-Speed-Drive Chillers Summary Cleanroom energy benchmarking data

  6. Cell-autonomous circadian clock of hepatocytes drives rhythms in transcription and polyamine synthesis

    E-Print Network [OSTI]

    Cell-autonomous circadian clock of hepatocytes drives rhythms in transcription and polyamine of the cell-autonomous clock and central pacemaker to rhythmic liver physiology. Through microarray expression oscillations, demonstrating that the cell-autonomous clock can drive many rhythms, and that MMH-D3 is a valid

  7. Advanced Time-Frequency Mutual Information Measures for Condition Based Maintenance of Helicopter Drive Trains

    E-Print Network [OSTI]

    Almor, Amit

    Drive Trains GRA: David Coats, Principal Investigators: Dr. Yong-June Shin, Abdel Bayoumi Motivation-1409. · Kwangik Cho, David Coats, John Abrams, Nicholas Goodman, Yong-June Shin, and Abdel E. Bayoumi point for examining eccentricities in gear- boxes, drive components, and motor vibration signatures

  8. Phenomenological Driving Behavior Model of the Suburban Vehicle-to-Vehicle Propagation Channel at

    E-Print Network [OSTI]

    Stancil, Daniel D.

    Phenomenological Driving Behavior Model of the Suburban Vehicle-to-Vehicle Propagation Channel at 5 a hierarchical phenomenological model of driving behavior to describe this observation. As an example, we a phenomenological model in a hierarchical manner to describe the expected relative velocity vs. distance of two

  9. Power Electronics and Motor Drives Laboratory Integrating Energy Storage withIntegrating Energy Storage with

    E-Print Network [OSTI]

    Saldin, Dilano

    Power Electronics and Motor Drives Laboratory Integrating Energy Storage withIntegrating Energy Storage with Renewable Energy SystemsRenewable Energy Systems Power Electronics and Motor Drives Introduction Wind Energy Profile Solar Energy Profile Energy Storage Options Role of Industrial Electronics

  10. Blue Shield ensures uninterrupted access to quality medical care after Palm Drive Hospital ceases operations

    E-Print Network [OSTI]

    Ravikumar, B.

    Blue Shield ensures uninterrupted access to quality medical care after Palm Drive Hospital ceases and inpatient services due to the hospital's bankruptcy filing. This closure affects Blue Shield HMO plan members who have been utilizing Palm Drive Hospital services. Please be advised that Blue Shield

  11. Vibrotactile Feedback in Steering Wheel Reduces Navigation Errors during GPS-Guided Car Driving

    E-Print Network [OSTI]

    Basdogan, Cagatay

    vibration motors are mounted onto the steering wheel of a driving simulator and driving experiments-based car navigation system to improve the navigation performance of a driver. In [5], vibration motors were auditory noise and distraction exist in the environment, the navigation errors (making a wrong turn

  12. Current ramp-up with lower hybrid current drive in EAST B. J. Ding,1

    E-Print Network [OSTI]

    Current ramp-up with lower hybrid current drive in EAST B. J. Ding,1 M. H. Li,1 N. J. Fisch,2 H hybrid current drive. The first stage of cyclic operation would be to ramp up the plasma current with lower hybrid waves alone in low-density plasma. Such a current ramp-up was carried out successfully

  13. Fault Detection, Isolation and Control Reconfiguration of Three-Phase PMSM Drives

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fault Detection, Isolation and Control Reconfiguration of Three-Phase PMSM Drives Fabien Meinguet purposes and for transport appli- cations [1], [2]. Although permanent magnet synchronous ma- chines (PMSM. Considering PMSM drives, the neutral accessibility may be an issue since most of the commercial PMSMs have

  14. Highway vehicle electric drive in the United States : 2009 status and issues.

    SciTech Connect (OSTI)

    Santini, D. J.; Energy Systems

    2011-02-16T23:59:59.000Z

    The status of electric drive technology in the United States as of early 2010 is documented. Rapidly evolving electric drive technologies discussed include hybrid electric vehicles, multiple types of plug-in hybrid electric vehicles, and battery electric vehicles. Recent trends for hybrids are quantified. Various plug-in vehicles entering the market in the near term are examined. The technical and economic requirements for electric drive to more broadly succeed in a wider range of highway vehicle applications are described, and implications for the most promising new markets are provided. Federal and selected state government policy measures promoting and preparing for electric drive are discussed. Taking these into account, judgment on areas where increased Clean Cities funds might be most productively focused over the next five years are provided. In closing, the request by Clean Cities for opinion on the broad range of research needs providing near-term support to electric drive is fulfilled.

  15. Oak Ridge Institutional Cluster Autotune Test Drive Report

    SciTech Connect (OSTI)

    Jibonananda, Sanyal [ORNL; New, Joshua Ryan [ORNL

    2014-02-01T23:59:59.000Z

    The Oak Ridge Institutional Cluster (OIC) provides general purpose computational resources for the ORNL staff to run computation heavy jobs that are larger than desktop applications but do not quite require the scale and power of the Oak Ridge Leadership Computing Facility (OLCF). This report details the efforts made and conclusions derived in performing a short test drive of the cluster resources on Phase 5 of the OIC. EnergyPlus was used in the analysis as a candidate user program and the overall software environment was evaluated against anticipated challenges experienced with resources such as the shared memory-Nautilus (JICS) and Titan (OLCF). The OIC performed within reason and was found to be acceptable in the context of running EnergyPlus simulations. The number of cores per node and the availability of scratch space per node allow non-traditional desktop focused applications to leverage parallel ensemble execution. Although only individual runs of EnergyPlus were executed, the software environment on the OIC appeared suitable to run ensemble simulations with some modifications to the Autotune workflow. From a standpoint of general usability, the system supports common Linux libraries, compilers, standard job scheduling software (Torque/Moab), and the OpenMPI library (the only MPI library) for MPI communications. The file system is a Panasas file system which literature indicates to be an efficient file system.

  16. Advanced Gate Drive for the SNS High Voltage Converter Modulator

    SciTech Connect (OSTI)

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

    2009-05-07T23:59:59.000Z

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

  17. Hybrid-drive implosion system for ICF targets

    DOE Patents [OSTI]

    Mark, James W. (Danville, CA)

    1988-01-01T23:59:59.000Z

    Hybrid-drive implosion systems (20,40) for ICF targets (10,22,42) are described which permit a significant increase in target gain at fixed total driver energy. The ICF target is compressed in two phases, an initial compression phase and a final peak power phase, with each phase driven by a separate, optimized driver. The targets comprise a hollow spherical ablator (12) surroundingly disposed around fusion fuel (14). The ablator is first compressed to higher density by a laser system (24), or by an ion beam system (44), that in each case is optimized for this initial phase of compression of the target. Then, following compression of the ablator, energy is directly delivered into the compressed ablator by an ion beam driver system (30,48) that is optimized for this second phase of operation of the target. The fusion fuel (14) is driven, at high gain, to conditions wherein fusion reactions occur. This phase separation allows hydrodynamic efficiency and energy deposition uniformity to be individually optimized, thereby securing significant advantages in energy gain. In additional embodiments, the same or separate drivers supply energy for ICF target implosion.

  18. Hybrid-drive implosion system for ICF targets

    DOE Patents [OSTI]

    Mark, J.W.K.

    1987-10-14T23:59:59.000Z

    Hybrid-drive implosion systems for ICF targets are described which permit a significant increase in target gain at fixed total driver energy. The ICF target is compressed in two phases, an initial compression phase and a final peak power phase, with each phase driven by a separate, optimized driver. The targets comprise a hollow spherical ablator surroundingly disposed around fusion fuel. The ablator is first compressed to higher density by a laser system, or by an ion beam system, that in each case is optimized for this initial phase of compression of the target. Then, following compression of the ablator, energy is directly delivered into the compressed ablator by an ion beam driver system that is optimized for this second phase of operation of the target. The fusion fuel is driven, at high gain, to conditions wherein fusion reactions occur. This phase separation allows hydrodynamic efficiency and energy deposition uniformity to be individually optimized, thereby securing significant advantages in energy gain. In additional embodiments, the same or separate drivers supply energy for ICF target implosion. 3 figs.

  19. High-speed gears for gas turbine drive

    SciTech Connect (OSTI)

    Kane, J.

    1995-06-01T23:59:59.000Z

    Recently, Lufkin Industries, Power Transmission Div., full-load tested a high-speed gear designed to couple a 50 Hz electric power generator to a GE LM6000 gas turbine for a power generation project in Australia. The gear is rated 52.2 MW to match the output of the LM6000 gas turbine believed to be one of the largest gear testing operations for this type and size of gear. Each gear drive manufactured by Lufkin is full-speed tested to verify its performance. Tests performed on high-speed units duplicate field conditions, as closely as possible, in order to verify critical speed analysis results and new bearing designs, if used. Lufkin also tests design techniques used in the development of new products. The finite element analysis performed to predict housing deflection in the thrust bearing area of a new extruder driveline was verified by testing of a prototype unit housing. Recently, housing structure stiffness and natural frequencies were predicted and verified on the test stand for some 50 MW vertically offset gear units. A complete data acquisition system is used to gather data from bearing, inlet and drain temperature monitoring points. The temperature monitoring system will accommodate type T,K,J, and E thermocouples and platinum and nickel RTDs.

  20. Adjustable speed drives: Applications and R&D needs

    SciTech Connect (OSTI)

    Stefanovic, V.R.

    1995-09-01T23:59:59.000Z

    The largest opportunity for the growth of adjustable speed drives (ASDs) during the next 5-6 years is in pump, fan and compressor (PFC) applications where a constant, fixed speed operation is converted to adjustable speed in order to realize energy savings. Inverter supplied induction motors are and will continue to be predominately used in these applications. Over the long term (10-15 years), the greatest ASD growth is expected in large volume consumer applications: first in hybrid electric vehicles (EVs) and in residential heating, ventilation and air-conditioning (HVAC). Both induction and a variety of AC Permanent Magnet motors are expected to be the dominant technology in this new field. The traditional ASD applications in industries which require adjustable speed (such as machine tools, robotics, steel rolling, extruders, paper mill finishing lines, etc.) offer a relatively limited potential for above average ASD growth since most of these applications have already converted to electronic speed control. As a result, ASD growth in this sector will essentially track the growth of the corresponding industries. If realized, both short and long term ASD growth opportunities will result in significant advancements of ASD technology, which will then substantially affect all other, more fragmented, ASD applications. In fact, any single large volume ASD application will serve as a catalyst for improving ASD characteristics in all other ASD applications with the same voltage rating. ASD cost and reliability (defined in the context of application compatibility) are the two most important factors which will determine whether the ASD growth opportunities are realized. Conversely, any technological improvement which carries a cost increase will be restricted to niche applications, at best. Consequently, future R & D efforts should be directed to secure reduction in ASD cost and improvement in ASD reliability. A specific action plan is outlined in this report.