National Library of Energy BETA

Sample records for letter nema motor

  1. EERE-2010-BT-STD-0027 Ex Parte Letter NEMA Motor Training re...

    Office of Environmental Management (EM)

    memorializes a communication between DOE staff and members of the NEMA Motor and Generator Section in connection with this proceeding. NEMA thanks the DOE for the opportunity...

  2. EERE-2010-BT-STD-0027 Ex Parte Letter NEMA Motor Training re DOE Motors

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPL EnergyPlus, LLC to5USC787 Rhode Island Schools Teachrequesting4Rule 15

  3. National Electrical Manufacturers Association (NEMA) Response...

    Office of Environmental Management (EM)

    Electrical Manufacturers Association (NEMA) Response to Smart Grid RFI National Electrical Manufacturers Association (NEMA) Response to Smart Grid RFI The National Electrical...

  4. NEMA Distribution Transformers, CCE Overview and Update presentation...

    Office of Environmental Management (EM)

    Distribution Transformers, CCE Overview and Update presentation, dated 05242011 NEMA Distribution Transformers, CCE Overview and Update presentation, dated 05242011 This...

  5. Justification for Energy Efficient Motors

    E-Print Network [OSTI]

    Buschart, R. J.

    1981-01-01

    This paper presents the results of a study of Energy Efficient (or EE) motors in NEMA frame sizes, (1-200 HP). It examines the economics of using EE motors for new motor requirements, as replacements for motors - instead of rewinding...

  6. NEMA Comments on DOE Reducing Regulatory Burden RFI

    Broader source: Energy.gov [DOE]

    The National Electrical Manufacturers Association (NEMA) thanks you for the opportunity to provide comments on the Department of Energyís efforts to make its regulatory program more effective and...

  7. Turn Motors Off When Not in Use - Motor Tip Sheet #10

    SciTech Connect (OSTI)

    2008-07-01

    Motors use no energy when turned off. Reducing motor operating time by just 10% usually saves more energy than replacing a standard efficiency motor with a NEMA Premiumģ efficiency motor. In fact, given that 97% of the life cycle cost of purchasing and operating a motor is energy-related, turning a motor off 10% of the time could reduce energy costs enough to purchase three new motors.

  8. Ultra-Efficient and Power-Dense Electric Motors

    SciTech Connect (OSTI)

    2009-01-01

    This factsheet describes a research project whose goal is to develop line-start and line-run constant-speed electric motors and simple-to-control electric motors with the goal of obtaining at least a 30% reduction in motor losses as compared to conventional energy-efficient induction motors and a 15% reduction in motor losses as compared to NEMA Premiumģ efficient induction motors.

  9. Ex parte discussion clarifying NEMA's comments | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLfor InnovativeProcessing22, 2014 TheMondayJanuarydiscussion with NEMA Ex

  10. Letter Fluency in Motor Neurone Disease: Is there a specific action word deficit?†

    E-Print Network [OSTI]

    Fawns-Ritchie, Chloe

    2013-03-13

    Recent studies have demonstrated that there is a specific verb, or action word, deficit in patients with a comorbid diagnosis of Motor Neurone Disease (MND) and dementia of the frontotemporal type. However, there has been less research examining...

  11. Motors

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGEMissionStress NewradicalEnergy,US DeptMotor FuelMotors

  12. National Electrical Manufacturers Association (NEMA) Vids for Grids: New Media for the New Energy Workforce

    SciTech Connect (OSTI)

    Gene Eckhart

    2011-12-15

    The objective of this program was to use a new media ‚?? videos posted on YouTube ‚?? to augment education about the emerging Smart Grid. All of the specific tasks have been completed per plan, with twelve videos and three podcasts posted on YouTube on the NEMA Vids4Grids channel.

  13. Microsoft Word - Regulatory Burden RFI NEMA Comments regarding small motor regulations 17July2015 v5_1.docx

    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 DeliciousMathematicsEnergyInterested Parties - WAPAEnergy May2.docTechnicalBARACK ofAcquisition Smart Grid

  14. Ultra-Efficient and Power Dense Electric Motors for U. S. Industry

    SciTech Connect (OSTI)

    Melfi, Michael J.; Schiferl, Richard F.; Umans, Stephen D.

    2013-03-12

    The primary purpose of this project was to combine the ease-of-installation and ease-of-use attributes of industrial induction motors with the low-loss and small size and weight advantages of PM motors to create an ultra-efficient, high power density industrial motor that can be started across-the-line or operated from a standard, Volts/Hertz drive without the need for a rotor position feedback device. PM motor products that are currently available are largely variable speed motors that require a special adjustable speed drive with rotor position feedback. The reduced size and weight helps to offset the magnet cost in order make these motors commercially viable. The scope of this project covers horsepower ratings from 20 ? 500. Prototypes were built and tested at ratings ranging from 30 to 250 HP. Since fans, pumps and compressors make up a large portion of industrial motor applications, the motor characteristics are tailored to those applications. Also, since there is extensive use of adjustable frequency inverters in these applications, there is the opportunity to design for an optimal pole number and operate at other than 60 Hz frequency when inverters are utilized. Designs with four and eight pole configurations were prototyped as part of this work. Four pole motors are the most commonly used configuration in induction motors today. The results of the prototype design, fabrication, and testing were quite successful. The 50 HP rating met all of the design goals including efficiency and power density. Tested values of motor losses at 50 HP were 30% lower than energy efficient induction motors and the motor weight is 35% lower than the energy efficient induction motor of the same rating. Further, when tested at the 30 HP rating that is normally built in this 286T frame size, the efficiency far exceeds the project design goals with 30 HP efficiency levels indicating a 55% reduction in loss compared to energy efficient motors with a motor weight that is a few percentage points lower than the energy efficient motor. This 30 HP rating full load efficiency corresponds to a 46% reduction in loss compared to a 30 HP NEMA Premium? efficient motor. The cost goals were to provide a two year or shorter efficiency-based payback of a price premium associated with the magnet cost in these motors. That goal is based on 24/7 operation with a cost of electricity of 10 cents per kW-hr. Similarly, the 250 HP prototype efficiency testing was quite successful. In this case, the efficiency was maximized with a slightly less aggressive reduction in active material. The measured full load efficiency of 97.6% represents in excess of a 50% loss reduction compared to the equivalent NEMA Premium Efficiency induction motor. The active material weight reduction was a respectable 14.5% figure. This larger rating demonstrated both the scalability of this technology and also the ability to flexibly trade off power density and efficiency. In terms of starting performance, the 30 ? 50 HP prototypes were very extensively tested. The demonstrated capability included the ability to successfully start a load with an inertia of 25 times the motor?s own inertia while accelerating against a load torque following a fan profile at the motor?s full nameplate power rating. This capability will provide very wide applicability of this motor technology. The 250 HP prototype was also tested for starting characteristics, though without a coupled inertia and load torque. As a result it was not definitively proven that the same 25 times the motor?s own inertia could be started and synchronized successfully at 250 HP. Finite element modeling implies that this load could be successfully started, but it has not yet been confirmed by a test.

  15. Comments on Controllable Three-Dimensional Brownian Motors

    E-Print Network [OSTI]

    Elias P. Gyftopoulos

    2007-06-13

    Upon reviewing the physical review letter which describes the processes involved in "demonstration of a controllable three-dimensional Brownian motor in symmetric potentials" we conclude that such processes are not compatible with what Einstein and many other physicists and engineers define as Brownian motors or Brownian movements.

  16. Electric Motors

    Broader source: Energy.gov [DOE]

    Section 313 of the Energy Independence and Security Act (EISA) of 2007 raised Federal minimum efficiency standards for general-purpose, single-speed, polyphase induction motors of 1 to 500 horsepower (hp). This new standard took effect in December 2010. The new minimum efficiency levels match FEMP's performance requirement for these motors.

  17. Exam 1 Advisory Letter Grades

    E-Print Network [OSTI]

    Kelly T Beranger

    2009-02-12

    MA 16200. Exam 1 Advisory Letter Grades. Spring 09. These advisory letter grades are estimates only and have no official standing. The actual letter grades will†...

  18. Energy-efficient electric motors study

    SciTech Connect (OSTI)

    Not Available

    1981-03-23

    The study identifies the industrial decision makers, investigated the information they needed to know, how they can best be reached, and the motivating factors for purchasing energy-efficient electric motors. A survey was conducted of purchasers of integral horsepower polyphase motors. The survey measured current knowledge of and awareness of energy-efficient motors, decision-making criteria, information sources, purchase and usage patterns, and related factors. The survey data were used for the electric motor market penetration analysis. Additionally, a telephone survey was made. The study also provides analyses of distribution channels, commercialization constraints, and the impacts of government programs and rising energy prices. A description of study findings, conclusions, and recommendations is presented. Sample questionnaires and copies of letters to respondents are presented in 3 appendices. Appendices D and E contain descriptions of the methods used. (MCW)

  19. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    Gordon, Arnold L.

    GeophysicalResearchLetters RESEARCH LETTER 10.1002/2014GL061661 Key Points: ∑ The 1934 drought), The worst North American drought year of the last millennium: 1934, Geophys. Res. Lett., 41, doi:10 North American drought year of the last millennium: 1934 Benjamin I. Cook1,2 , Richard Seager2

  20. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    GeophysicalResearchLetters RESEARCH LETTER 10.1002/2014GL061661 Key Points: ∑ The 1934 drought), The worst North American drought year of the last millennium: 1934, Geophys. Res. Lett., 41, 7298≠7305, doi Published online 18 OCT 2014 The worst North American drought year of the last millennium: 1934 Benjamin I

  1. Advanced Motors

    SciTech Connect (OSTI)

    Knoth, Edward A.; Chelluri, Bhanumathi; Schumaker, Edward J.

    2012-12-14

    Project Summary Transportation energy usage is predicted to increase substantially by 2020. Hybrid vehicles and fuel cell powered vehicles are destined to become more prominent as fuel prices rise with the demand. Hybrid and fuel cell vehicle platforms are both dependent on high performance electric motors. Electric motors for transportation duty will require sizeable low-speed torque to accelerate the vehicle. As motor speed increases, the torque requirement decreases which results in a nearly constant power motor output. Interior permanent magnet synchronous motors (IPMSM) are well suited for this duty. , , These rotor geometries are configured in straight lines and semi circular arc shapes. These designs are of limited configurations because of the lack of availability of permanent magnets of any other shapes at present. We propose to fabricate rotors via a novel processing approach where we start with magnet powders and compact them into a net shape rotor in a single step. Using this approach, widely different rotor designs can be implemented for efficiency. The current limitation on magnet shape and thickness will be eliminated. This is accomplished by co-filling magnet and soft iron powders at specified locations in intricate shapes using specially designed dies and automatic powder filling station. The process fundamentals for accomplishing occurred under a previous Applied Technology Program titled, √?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?Motors and Generators for the 21st Century√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ě. New efficient motor designs that are not currently possible (or cost prohibitive) can be accomplished by this approach. Such an approach to motor fabrication opens up a new dimension in motor design. Feasibility Results We were able to optimize a IPMSM rotor to take advantage of the powder co-filling and DMC compaction processing methods. The minimum low speed torque requirement of 5 N-m can be met through an optimized design with magnet material having a Br capability of 0.2 T. This level of magnetic performance can be met with a variety of bonded magnet compositions. The torque ripple was found to drop significantly by using thinner magnet segments. The powder co-filling and subsequent compaction processing allow for thinner magnet structures to be formed. Torque ripple can be further reduced by using skewing and pole shaping techniques. The techniques can be incorporated into the rotor during the powder co-filling process.

  2. Implementing Motor Decision Plans†

    E-Print Network [OSTI]

    Elliott, R. N.

    2001-01-01

    The first step to reducing energy costs and increasing reliability in motors is to establish a motor plan. A motor plan allows decisions to be made in advance of motor failure, and increases the options available. By contrast, most motor decisions...

  3. Edinburgh Motor Assessment (EMAS)†

    E-Print Network [OSTI]

    Bak, Thomas

    2013-12-01

    Edinburgh Motor Assessment (EMAS) is a brief motor screening test, specifically designed for assessment of patients with dementia, aphasia and other cognitive disorders. It focuses, therefore, on those motor symptoms, ...

  4. Premium Efficient Motors

    E-Print Network [OSTI]

    Moser, P. R.

    1984-01-01

    MOTORS Paul R. Moser Baldor Electric Co. Fort Smith, Arkansas , ABSTRACT Premium efficient motors are available which convert electrical energy into mechanical energy with fewer losses than the more standard motors. The fewer losses...

  5. DHS Letter ??? MERRTT Approval

    Office of Environmental Management (EM)

    Technical Assistance Division has asked me to respond to your letter and above cited curriculum submission of January 31, 2005. The course submitted has been reviewed and accepted...

  6. Letter to the Editor†

    E-Print Network [OSTI]

    Andrew, Paige

    2008-05-07

    Letter to the editor regarding Jorge A. Gonzalezí article "Problems That Arise When Providing Geographic Coordinate Information for Cataloged MapsĒ (Coordinates Series B, No. 8)....

  7. Letter to the Editor†

    E-Print Network [OSTI]

    Kovarsky, Joel

    2008-04-17

    Letter to the editor regarding David Bosse's article, "Institutional Map and Atlas Collecting in Eighteenth-Century America," (Coordinates, Series B; 9)....

  8. NNSA POLICY LETTER

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

    NNSA POLICY LETTER Approved: 12-11-13 QUALITY MANAGEMENT SYSTEM NATIONAL NUCLEAR SECURITY ADMINISTRATION Office of the Administrator NAP-26 CONTROLLED COPIES AVAILABLE AT:...

  9. Program Launch Letter from Mayor

    Broader source: Energy.gov [DOE]

    Program Launch Letter from Mayor, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  10. EM SSAB Recommendations & Letters | Department of Energy

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

    and Letters - 2014-05 Included recommendations, letters, and other related materials. September 30, 2014 EM SSAB Recommendations and Letters - 2014-04 Included...

  11. MOTOR BIKES, MOPEDS, AND MOTOR SCOOTERS Registration and Operation

    E-Print Network [OSTI]

    Alpay, S. Pamir

    6. 6.1 MOTOR BIKES, MOPEDS, AND MOTOR SCOOTERS Registration and Operation Motor Bikes, Mopeds, and Motor Scooters are defined as motor vehicles and are subject to all regulations governing motor vehicle operation on the grounds of the University. Such a motor vehicle owned and operated by a member

  12. Stepping Motor Control System

    E-Print Network [OSTI]

    Larson, Noble G.

    This paper describes a hardware system designed to facilitate position and velocity control of a group of eight stepping motors using a PDP-11. The system includes motor driver cards and other interface cards in addition ...

  13. Implementing Motor Management†

    E-Print Network [OSTI]

    Colip, R. L.

    2002-01-01

    PRESIDENT-SALES, BALDOR ELECTRlC COMPANY, FORT SMITH, ARKANSAS IMPLEMENTING MOTOR MANAGEMENT ABSTRACT Electric motors account for sixty five percent of industrial energy consumed today. There are many opportunities to conserve electricity by using more...

  14. Quantum motor and future

    E-Print Network [OSTI]

    Evgeny G. Fateev

    2013-01-20

    In a popular language, the possibilities of the Casimir expulsion effect are presented, which can be the basis of quantum motors. Such motors can be in the form of a special multilayer thin film with periodic and complex nanosized structures. Quantum motors of the type of the Casimir platforms can be the base of transportation, energy and many other systems in the future.

  15. Motor Control STEVEN P. WISE

    E-Print Network [OSTI]

    Shadmehr, Reza

    Motor Control STEVEN P. WISE National Institute of Mental Health REZA SHADMEHR Johns Hopkins University I. What Controls Movement II. What the Motor System Controls III. Mechanisms of Motor Control IV. Motor Memory V. Flexibility in Motor Control VI. Evolution of the Motor System GLOSSARY agonist A muscle

  16. Motor/generator

    DOE Patents [OSTI]

    Hickam, Christopher Dale (Glasford, IL)

    2008-05-13

    A motor/generator is provided for connecting between a transmission input shaft and an output shaft of a prime mover. The motor/generator may include a motor/generator housing, a stator mounted to the motor/generator housing, a rotor mounted at least partially within the motor/generator housing and rotatable about a rotor rotation axis, and a transmission-shaft coupler drivingly coupled to the rotor. The transmission-shaft coupler may include a clamp, which may include a base attached to the rotor and a plurality of adjustable jaws.

  17. Parametric electric motor study

    SciTech Connect (OSTI)

    Adams, D. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States); Stahura, D. [GM-AC Delco Systems, Indianapolis, IN (United States)

    1995-04-30

    Technology for the axial gap motor was developed by DOE with an investment of approximately $15 million. This development effort is for motor technologies of high power density and high efficiency. Such motors that are also small and light-weight are not available on the commercial market because high-power motors have typically been used in large industrial applications where small size and light weight are not requirements. AC Delco has been developing motors since 1918 and is interested in leveraging its research and development dollars to produce an array of motor systems for vehicles and to develop a future line of propulsion products. The DOE focus of the study was applied to machining applications. The most attractive feature of this motor is the axial air gap, which may make possible the removal of the motor`s stationary component from a total enclosure of the remainder of the machine if the power characteristics are adequate. The objectives of this project were to evaluate alternative electric drive systems for machine tools and automotive electric drive systems and to select a best machine type for each of those applications. A major challenge of this project was to produce a small, light-weight, highly efficient motor at a cost-effective price. The project developed machine and machine drive systems and design criteria for the range of applications. The final results included the creation of a baseline for developing electric vehicle powertrain system designs, conventional vehicle engine support system designs, and advanced machine tool configurations. In addition, an axial gap permanent magnet motor was built and tested, and gave, said one engineer involved, a sterling performance. This effort will commercialize advanced motor technology and extend knowledge and design capability in the most efficient electric machine design known today.

  18. Hybrid vehicle motor alignment

    DOE Patents [OSTI]

    Levin, Michael Benjamin (Ann Arbor, MI)

    2001-07-03

    A rotor of an electric motor for a motor vehicle is aligned to an axis of rotation for a crankshaft of an internal combustion engine having an internal combustion engine and an electric motor. A locator is provided on the crankshaft, a piloting tool is located radially by the first locator to the crankshaft. A stator of the electric motor is aligned to a second locator provided on the piloting tool. The stator is secured to the engine block. The rotor is aligned to the crankshaft and secured thereto.

  19. Traffic of Molecular Motors

    E-Print Network [OSTI]

    Stefan Klumpp; Melanie J. I. MŁller; Reinhard Lipowsky

    2005-12-06

    Molecular motors perform active movements along cytoskeletal filaments and drive the traffic of organelles and other cargo particles in cells. In contrast to the macroscopic traffic of cars, however, the traffic of molecular motors is characterized by a finite walking distance (or run length) after which a motor unbinds from the filament along which it moves. Unbound motors perform Brownian motion in the surrounding aqueous solution until they rebind to a filament. We use variants of driven lattice gas models to describe the interplay of their active movements, the unbound diffusion, and the binding/unbinding dynamics. If the motor concentration is large, motor-motor interactions become important and lead to a variety of cooperative traffic phenomena such as traffic jams on the filaments, boundary-induced phase transitions, and spontaneous symmetry breaking in systems with two species of motors. If the filament is surrounded by a large reservoir of motors, the jam length, i.e., the extension of the traffic jams is of the order of the walking distance. Much longer jams can be found in confined geometries such as tube-like compartments.

  20. Neural correlates underlying motor map plasticity and skilled motor behavior

    E-Print Network [OSTI]

    Ramanathan, Dhakshin

    2007-01-01

    of neurons within the motor cortex. Physiol Rev, 1975. 55(and S.P. Wise, The motor cortex of the rat: cytoarchitecturedelayed changes of rat motor cortical output representation

  1. Improve Motor System Performance with MotorMaster+

    SciTech Connect (OSTI)

    2010-08-01

    Fact sheet describes how industrial plants can improve their motor system performance using DOE-AMO's MotorMaster+ software tool.

  2. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny...

  3. Ontario Hydro Motor Efficiency Study†

    E-Print Network [OSTI]

    Dautovich, D. R.

    1980-01-01

    Electric motors consume more than one-half of the electrical energy produced by Ontario Hydro. In the residential sector, the major motor load is for refrigerators and freezers while packaged equipment dominate the motor load in the commercial...

  4. Enforcement Letter, Lawrence Livermore National Laboratory -...

    Energy Savers [EERE]

    National Laboratory - November 5, 1999 Enforcement Letter, EG&G Mound Applied Technologies - August 22, 1996 Enforcement Letter, Brookhaven National Laboratory - December 18, 1996...

  5. Improve Motor System Efficiency for a Broad Range of Motors with MotorMaster+ International

    SciTech Connect (OSTI)

    2005-05-01

    Available at no charge, MotorMaster+ International is designed to support motor systems improvement planning at industrial facilities by identifying the most cost-effective choice when deciding to repair or replace older motor models.

  6. System and method for motor parameter estimation

    DOE Patents [OSTI]

    Luhrs, Bin; Yan, Ting

    2014-03-18

    A system and method for determining unknown values of certain motor parameters includes a motor input device connectable to an electric motor having associated therewith values for known motor parameters and an unknown value of at least one motor parameter. The motor input device includes a processing unit that receives a first input from the electric motor comprising values for the known motor parameters for the electric motor and receive a second input comprising motor data on a plurality of reference motors, including values for motor parameters corresponding to the known motor parameters of the electric motor and values for motor parameters corresponding to the at least one unknown motor parameter value of the electric motor. The processor determines the unknown value of the at least one motor parameter from the first input and the second input and determines a motor management strategy for the electric motor based thereon.

  7. Comment on ``Osmotic Propulsion: The Osmotic In a recent Letter [1] it has been claimed that colloidal

    E-Print Network [OSTI]

    JŁlicher, Frank

    Comment on ``Osmotic Propulsion: The Osmotic Motor'' In a recent Letter [1] it has been claimed that colloidal particles immersed in a multicomponent fluid would be subject to an ``osmotic force'' Fosm ľ ņ R Sp ŇdA if a solute concentration gradient exists. Here Ň ľ nkBT de- notes an osmotic pressure, n

  8. Molecular Motors: A Theorist's Perspective

    E-Print Network [OSTI]

    Molecular Motors: A Theorist's Perspective Anatoly B. Kolomeisky1 and Michael E. Fisher2 1/0505-0675$20.00 Key Words motor proteins, kinesin, myosin, single-molecule experiments, discrete stochastic models Abstract Individual molecular motors, or motor proteins, are enzymatic molecules that convert chemical

  9. Markov Process of Muscle Motors

    E-Print Network [OSTI]

    Yu. Kondratiev; E. Pechersky; S. Pirogov

    2007-06-20

    We study a Markov random process describing a muscle molecular motor behavior. Every motor is either bound up with a thin filament or unbound. In the bound state the motor creates a force proportional to its displacement from the neutral position. In both states the motor spend an exponential time depending on the state. The thin filament moves at its velocity proportional to average of all displacements of all motors. We assume that the time which a motor stays at the bound state does not depend on its displacement. Then one can find an exact solution of a non-linear equation appearing in the limit of infinite number of the motors.

  10. Energy Efficient Motors

    E-Print Network [OSTI]

    Hoffmeyer, W.

    1982-01-01

    Efficiency is only one aspect of motor performance. This paper discusses how efficiency is influenced by such factors as horsepower rating, poles, actual load, and starting requirements. It discusses some of the variables affecting efficiency...

  11. MotorWeek

    SciTech Connect (OSTI)

    2009-01-01

    In 2008, PBS's MotorWeek, television's original automotive magazine, visited Argonne's Transportation Technology R&D Center "to learn what it really takes to make clean power sources a viable reality."

  12. Linear Motor Powered Transportation

    E-Print Network [OSTI]

    Thornton, Richard D.

    This special issue on linear-motor powered transportation covers both supporting technologies and innovative transport systems in various parts of the World, as this technology moves from the lab to commercial operations. ...

  13. MotorWeek

    ScienceCinema (OSTI)

    None

    2013-04-19

    In 2008, PBS's MotorWeek, television's original automotive magazine, visited Argonne's Transportation Technology R&D Center "to learn what it really takes to make clean power sources a viable reality."

  14. DOE-L.__ PROPOSAL PREPARATION INSTRUCTIONS - COVER LETTER AND

    Office of Environmental Management (EM)

    L. PROPOSAL PREPARATION INSTRUCTIONS - COVER LETTER AND VOLUME I, OFFER AND OTHER DOCUMENTS (a) Instruction - Cover Letter. The cover letter shall include, but not be limited to,...

  15. Motor Control CTIO 60 inches CHIRON

    E-Print Network [OSTI]

    Tokovinin, Andrei A.

    Motor Control CTIO 60 inches CHIRON CHI60HF8.1 La Serena, December 2010 #12;Contents..............................................................................................................................3 1. Image Slicer motor..............................................................................................................5 2. Focus motor

  16. Commercial Motor Vehicle Brake-Related Research

    E-Print Network [OSTI]

    Commercial Motor Vehicle Brake-Related Research Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor

  17. Brushless Motor Controller Report Spring 2010

    E-Print Network [OSTI]

    Ruina, Andy L.

    Brushless Motor Controller Report Spring 2010 May 15, 2010 Brian Clementi MAE of 2010 322 Bogert ...................................................................................................... 5 A. Motor Description...................................................................................................... 5 B. The Motor Controller Board

  18. Sensory-Motor Integration and Control

    E-Print Network [OSTI]

    Welch, Dan Bruce

    2011-01-01

    spinal interneurons during motor pattern generation inStep, Swim, and Scratch Motor Patterns in the Turtle. JStep, Swim, and Scratch Motor Patterns in the Turtle. J

  19. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported...

  20. Motor current signature analysis method for diagnosing motor operated devices

    DOE Patents [OSTI]

    Haynes, Howard D. (Kingston, TN); Eissenberg, David M. (Oak Ridge, TN)

    1990-01-01

    A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.

  1. Design and prototyping methods for brushless motors and motor control

    E-Print Network [OSTI]

    Colton, Shane W. (Shane William)

    2010-01-01

    In this report, simple, low-cost design and prototyping methods for custom brushless permanent magnet synchronous motors are explored. Three case-study motors are used to develop, illustrate and validate the methods. Two ...

  2. Bent shaft motor

    DOE Patents [OSTI]

    Benavides, Gilbert L. (Albuquerque, NM)

    1998-01-01

    A nonelectromagnetic motor comprising a base, a bent shaft which is rotable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion that is offset with respect to the main axis; and a drive means for driving the offset portion of the bent shaft along a generally circular path in a plane perpendicular to the main axis to rotate the bent shaft. The bent shaft and drive means for driving the bent shaft can be selected from piezoelectric, magnetostrictive, rheological and shape memory alloys. The drive means of the nonelectromagnetic motor can additionally comprise a shell which shell surrounds and houses the bent shaft and precesses or gyrates which in turn causes the bent drive shaft to rotate. The nonelectromagnetic motor does not rely on friction for the application of torque upon a rotor.

  3. Bent shaft motor

    DOE Patents [OSTI]

    Benavides, G.L.

    1998-05-05

    A nonelectromagnetic motor comprising a base, a bent shaft which is rotatable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion that is offset with respect to the main axis; and a drive means for driving the offset portion of the bent shaft along a generally circular path in a plane perpendicular to the main axis to rotate the bent shaft. The bent shaft and drive means for driving the bent shaft can be selected from piezoelectric, magnetostrictive, rheological and shape memory alloys. The drive means of the nonelectromagnetic motor can additionally comprise a shell which shell surrounds and houses the bent shaft and precesses or gyrates which in turn causes the bent drive shaft to rotate. The nonelectromagnetic motor does not rely on friction for the application of torque upon a rotor. 11 figs.

  4. Roberson Letter - April 11, 2003

    Office of Environmental Management (EM)

    1, 2003 Mr. James C. Bierer Chair Fernald Citizens Advisory Board Dear Mr. Bierer: This is in response to your February 26, 2003, letter regarding the proposed Office of Legacy...

  5. Replacing Motors Counting Savings: Results from a 100 Motor Study†

    E-Print Network [OSTI]

    Kaufman, N. M.

    2006-01-01

    that this model is too simple for application in the complex economy of industry. When new motor purchase is planned and specifically budgeted, particularly for expansion or upgrade, it makes sense to account for the present value of the energy savings... based on manufacturer data of available motors accurately reflected the motors found in industry. Based on testing results of 64 motors operating in industry for at least the past ten years, it is determined that tested values at rated load do...

  6. Method for assessing motor insulation on operating motors

    DOE Patents [OSTI]

    Kueck, John D. (Oak Ridge, TN); Otaduy, Pedro J. (Oak Ridge, TN)

    1997-01-01

    A method for monitoring the condition of electrical-motor-driven devices. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques.

  7. Magnetically Coupled Adjustable Speed Motor Drives - Motor Tip Sheet #13

    SciTech Connect (OSTI)

    2008-07-01

    Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump.

  8. Method for assessing motor insulation on operating motors

    DOE Patents [OSTI]

    Kueck, J.D.; Otaduy, P.J.

    1997-03-18

    A method for monitoring the condition of electrical-motor-driven devices is disclosed. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques. 15 figs.

  9. Outreach Letter Template for Clean Cities Coordinators Promoting...

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

    Letter Template for Clean Cities Coordinators Promoting the Workplace Charging Challenge ccoutreachlettertemplate-final.docx More Documents & Publications Outreach Letter...

  10. Verification of Motor Repair Quality†

    E-Print Network [OSTI]

    Butler, K.

    1998-01-01

    is done properly. But how can an industrial customer know that the motor has been repaired properly?...

  11. Filament depolymerization by motor molecules

    E-Print Network [OSTI]

    Gernot A. Klein; Karsten Kruse; Gianaurelio Cuniberti; Frank Juelicher

    2005-01-24

    Motor proteins that specifically interact with the ends of cytoskeletal filaments can induce filament depolymerization. A phenomenological description of this process is presented. We show that under certain conditions motors dynamically accumulate at the filament ends. We compare simulations of two microscopic models to the phenomenological description. The depolymerization rate can exhibit maxima and dynamic instabilities as a function of the bulk motor density for processive depolymerization. We discuss our results in relation to experimental studies of Kin-13 family motor proteins.

  12. Magazine R729 Motor prediction

    E-Print Network [OSTI]

    Flanagan, Randy

    Magazine R729 Primer Motor prediction Daniel M. Wolpert* and J. Randall Flanagan The concept of motor prediction was first considered by Helmholtz when trying to understand how we localise visual position of the eye, predicted the gaze position based on a copy of the motor command acting on the eye

  13. Kinematic Motor Learning Wolfram Schenck

    E-Print Network [OSTI]

    Moeller, Ralf

    Kinematic Motor Learning Wolfram Schenck Computer Engineering Group Faculty of Technology Bielefeld-521-106-6440 mail: wschenck@ti.uni-bielefeld.de Abstract This paper focuses on adaptive motor control in the kinematic domain. Several motor learning strategies from the literature are adopted to kinematic problems

  14. Motor technology for mining applications advances

    SciTech Connect (OSTI)

    Fiscor, S.

    2009-08-15

    AC motors are steadily replacing DC motors in mining and mineral processing equipment, requiring less maintenance. The permanent magnet rotor, or the synchronous motor, has enabled Blador to introduce a line of cooling tower motors. Synchronous motors are soon likely to take over from the induction motor. 1 photo.

  15. Letter and word priming 1 Running head: Letter and word priming

    E-Print Network [OSTI]

    Bowers, Jeff

    Letter and word priming 1 Running head: Letter and word priming Orthographic, phonological, and articulatory contributions to masked letter and word priming Jeffrey S. Bowers Rice University Gabriella Vigliocco University of Wisconsin-Madison Richard Haan University of Arizona #12;Letter and word priming 2

  16. LettersForum512 Can biological invasions

    E-Print Network [OSTI]

    D'Odorico, Paolo

    LettersForum512 Letters Can biological invasions induce desertification? A common form of land present a new desertification paradigm that includes the invasion of stable desert shrublands by exotic

  17. Blanche No More: Voice, Letter, Agency†

    E-Print Network [OSTI]

    McGuire, Janiece Anne

    2013-02-22

    Blanche No More: Voice, Letter, Agency seeks to locate, examine and trace the role of the author in culture. The subject of Authorship is one that is seemingly endless, therefore, Blanch No More: Voice, Letter, Agency ...

  18. Letters of Outreach to Partner Communities

    Broader source: Energy.gov [DOE]

    Letters of Outreach to Partner Communities, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  19. Conditional Offer Letter Executive/Senior Administrative

    E-Print Network [OSTI]

    Acton, Scott

    Conditional Offer Letter Web Form Executive/Senior Administrative University Staff Introduction below will generate a standard conditional offer letter based on information entered by the user. This conditional offer letter web form is specific to the hiring of E&SA University Staff employees

  20. Enforcement Letters | Department of Energy

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities EnergyU.S. DOEEnergyEnforcement Letters Enforcement Letters

  1. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from...

  2. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of...

  3. engineering LETTER FROM THE DEAN

    E-Print Network [OSTI]

    Bergman, Keren

    exploring columbia engineering majors #12;LETTER FROM THE DEAN Today, Engineering is in a period the possibilities and promise of interdisciplinary discoveries. Here at Columbia Engineering, you have many diverse, you may have had an idea of some of the many career options that an engineering or applied science

  4. engineering LETTER FROM THE DEAN

    E-Print Network [OSTI]

    Hone, James

    exploring columbia engineering majors #12;LETTER FROM THE DEAN Making a decision about your engineering or applied science major can seem like a daunting dilemma, but, with the right approach. Although engineering is a global, interdisciplinary field, once you choose your major, it will set you

  5. Motor Gasoline Assessment, Spring 1997

    Reports and Publications (EIA)

    1997-01-01

    Analyzes the factors causing the run up of motor gasoline prices during spring 1996 and the different market conditions during spring 1997 that caused prices to decline.

  6. How to Build a Motor

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

    Motor Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives Finance & Rates Expand...

  7. Die Casting Copper Motor Rotors

    Broader source: Energy.gov [DOE]

    Though it conducts electricity less efficiently than copper, aluminum is the industryís preferred fabrication material in electric induction motor rotors. Traditional tool steel casting molds...

  8. Motors | 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 QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to: navigation, searchsource History ViewMoeOhio:LightNewIndustriesMotors

  9. 3.1. MOTOR SYSTEM 35 3.1 Motor System

    E-Print Network [OSTI]

    Toronto, University of

    3.1. MOTOR SYSTEM 35 3.1 Motor System The motor system comprises the dynamic model of the fish, the actuators, and a set of motor controllers (MCs) which constitutes the motor control center in the artificial consistency, hence realism, and computational efficiency. Our model is rich enough so that we can build motor

  10. COMMERICAL MOTOR VEHICLE OPERATOR EMPLOYMENT APPLICATION SUPPLEMENT

    E-Print Network [OSTI]

    Sin, Peter

    COMMERICAL MOTOR VEHICLE OPERATOR EMPLOYMENT APPLICATION SUPPLEMENT _________________________________________________________ Applicants for positions involving the operation of a commercial motor vehicle must comply with Title 49 CFR: _______________ Please list the following information for each unexpired commercial motor vehicle operator license

  11. Developing a Motor Management Policy at BASF†

    E-Print Network [OSTI]

    Zickefoose, B.; Theising, T. R.

    2001-01-01

    In early 1998 Thomas R. Theising, BASF Corporate Engineering initiated the formation of a motor management team. The goal of the team was to develop a Motor Management Guideline to better manage the purchase and repair of motors used throughout...

  12. Determining Electric Motor Load and Efficiency

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

    DETERMINING ELECTRIC MOTOR LOAD AND EFFICIENCY Most likely your operation's motors account for a large part of your monthly electric bill. Far too often motors are mismatched-or...

  13. 3M's Motor Challenge Showcase Demonstration Project†

    E-Print Network [OSTI]

    Schultz, S. C.

    1996-01-01

    . The Motor Challenge is a U. S. Department of Energy initiative to promote the efficient use of energy in electric motor systems. Showcase Demonstration Projects are used to exemplify the benefits that motor system optimization can provide. This Showcase...

  14. Magnetically Coupled Adjustable Speed Motor Drives

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

    include: * Creation of harmonics, which requires installation of line reactors or harmonic filters * Voltage spikes that can lead to early motor failure * Motor bearing...

  15. Magnetically Coupled Adjustable Speed Motor Drives

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  16. Turn Motors Off When Not in Use

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  17. Optimizing Your Motor-Driven System

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

    and air conditioning (HVAC) systems in many buildings use single or three-phase electrical power controlled by timers and thermostats to drive motors. These motors supply...

  18. Avoid Nuisance Tripping with Premium Efficiency Motors

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

    Avoid Nuisance Tripping with Premium Efficiency Motors In most cases, upgrading to premium efficiency motors has no noticeable impact on the electrical system. However, in rare...

  19. Energy Management for Motor-Driven Systems

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

    and to design a motor improvement plan. These actions will help you: Reduce energy costs, Improve motor-driven system reliability and efficiency, Increase productivity,...

  20. Communication re NEMA | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle (PEV)Day-June 22, 2015OperationNonprofit|Puerto3, Dan

  1. Piezoelectric wave motor

    DOE Patents [OSTI]

    Yerganian, Simon Scott (Lee's Summit, MO)

    2001-07-17

    A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.

  2. Enforcement Letter, Geiger Brothers Mechanical Contractors, INC...

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

    Geiger Brothers Mechanical Contractors, INC - March 26, 2010 Enforcement Letter, Geiger Brothers Mechanical Contractors, INC - March 26, 2010 March 26, 2010 Issued to Geiger...

  3. Cover Letter Formula Ready Reference F-3

    E-Print Network [OSTI]

    Cover Letter Formula Ready Reference F-3 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of Engineering, Architecture & Technology Career Services Office

  4. Letter of Refusal Ready Reference F-8

    E-Print Network [OSTI]

    Letter of Refusal Ready Reference F-8 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of College of Engineering, Architecture & Technology Career

  5. Sample Withdrawal Letter Ready Reference F-11

    E-Print Network [OSTI]

    Sample Withdrawal Letter Ready Reference F-11 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of College of Engineering, Architecture & Technology

  6. Sample Application Letter Ready Reference F-5

    E-Print Network [OSTI]

    Sample Application Letter Ready Reference F-5 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of College of Engineering, Architecture & Technology

  7. Sample Networking Letter Ready Reference F-6

    E-Print Network [OSTI]

    Sample Networking Letter Ready Reference F-6 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of College of Engineering, Architecture & Technology

  8. Sample Acceptance Letter Ready Reference F-10

    E-Print Network [OSTI]

    Sample Acceptance Letter Ready Reference F-10 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of College of Engineering, Architecture & Technology

  9. 2008 MERRTT Revision Letter | Department of Energy

    Office of Environmental Management (EM)

    Revision Letter The 2008 version of MERRTT includes several enhancements, but the primary enhancement is the addition of the decontamination dress-down video. Comments...

  10. Enforcement Letter, National Security Technologies, LLC - November...

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

    November 13, 2007 Enforcement Letter, National Security Technologies, LLC - November 13, 2007 November 13, 2007 Issued to National Security Technologies, LLC related to an...

  11. POLICY FLASH 2015-25 - Acquisition Letters Remaining in Effect...

    Office of Environmental Management (EM)

    5 - Acquisition Letters Remaining in Effect POLICY FLASH 2015-25 - Acquisition Letters Remaining in Effect DATE: May 12, 2015 TO: Procurement DirectorsContracting Officers FROM:...

  12. Acquisition Letter No. AL 2014-07 | Department of Energy

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

    Acquisition Letter 07 - Benchmark Compensation Amount for Individual Executive Salary Actions SUMMARY: The purpose of Acquisition Letter (AL) 2014-07 is to establish the...

  13. Policy Flash 2013-30 Acquisition Letter on Acquisition Planning...

    Energy Savers [EERE]

    Policy Flash 2013-30 Acquisition Letter on Acquisition Planning Considerations for Management and Operating Contracts Policy Flash 2013-30 Acquisition Letter on Acquisition...

  14. POLICY GUIDANCE MEMORANDUM #29 Employment Offers Letters Performance...

    Office of Environmental Management (EM)

    9 Employment Offers Letters Performance Management POLICY GUIDANCE MEMORANDUM 29 Employment Offers Letters Performance Management This memorandum is to ensure compliance with DOE...

  15. Secretaries Bodman and Schafer's letter to Senator Bingaman ...

    Office of Environmental Management (EM)

    and Schafer's letter to Senator Bingaman A letter to the Honorable Jeff Bingaman on biofuels policy, from the Secretary of Energy, Samuel W. Bodman, and Secretary of...

  16. Submersible canned motor mixer pump

    DOE Patents [OSTI]

    Guardiani, R.F.; Pollick, R.D.

    1997-10-07

    A mixer pump is described used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the mixer pump. 10 figs.

  17. Submersible canned motor mixer pump

    DOE Patents [OSTI]

    Guardiani, Richard F. (Ohio Township, PA); Pollick, Richard D. (Sarver, PA)

    1997-01-01

    A mixer pump used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the mixer pump.

  18. OIT Forest Products Motor Challenge Industry Profile: Motor System...

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

    Paper and Allied Products Industry annually spends 3.6 billion or about 2.6% of its overall operating costs to operate electric motor systems-higher than any other 2- digit...

  19. State observer for synchronous motors

    DOE Patents [OSTI]

    Lang, Jeffrey H. (Waltham, MA)

    1994-03-22

    A state observer driven by measurements of phase voltages and currents for estimating the angular orientation of a rotor of a synchronous motor such as a variable reluctance motor (VRM). Phase voltages and currents are detected and serve as inputs to a state observer. The state observer includes a mathematical model of the electromechanical operation of the synchronous motor. The characteristics of the state observer are selected so that the observer estimates converge to the actual rotor angular orientation and velocity, winding phase flux linkages or currents.

  20. Electric motor for laser-mechanical drilling

    DOE Patents [OSTI]

    Grubb, Daryl L.; Faircloth, Brian O.; Zediker, Mark S.

    2015-07-07

    A high power laser drilling system utilizing an electric motor laser bottom hole assembly. A high power laser beam travels within the electric motor for advancing a borehole. High power laser drilling system includes a down hole electrical motor having a hollow rotor for conveying a high power laser beam through the electrical motor.

  1. Torquespeed relationship of the bacterial flagellar motor

    E-Print Network [OSTI]

    Oster, George

    Torque≠speed relationship of the bacterial flagellar motor Jianhua Xing* , Fan Bai , Richard Berry swimming bacteria are propelled by flagellar filaments driven by a rotary motor. Each of these tiny motors can generate an impressive torque. The motor torque vs. speed relationship is considered one

  2. Rotary protein motors George Oster1

    E-Print Network [OSTI]

    Oster, George

    unambiguously iden- tified as rotary engines: the bacterial flagellar motor and the two motors that constituteRotary protein motors George Oster1 and Hongyun Wang2 1 Depts Molecular and Cellular Biology review the current understanding of how these protein motors convert their energy supply into a rotary

  3. Motor Cortex Is Required for Learning but Not for Executing a Motor Skill

    E-Print Network [OSTI]

    Olveczky, Bence

    Article Motor Cortex Is Required for Learning but Not for Executing a Motor Skill Highlights d We train rats to execute spatiotemporally precise task- specific motor sequences d We show that motor cortex is not required for executing the learned skills d Motor cortex, however, is essential

  4. Rotary Electrodynamics of a DC Motor: Motor as Mechanical Capacitor Lab 2: Modeling and System Identification

    E-Print Network [OSTI]

    Rm La im + - vm vin 0 V Jm m m Kg : 1 gm gm g g J m = shaft + gm Motor shaft inertia shaft = Jm m by the motor to its rotational output shaft. ∑ m is the angular speed (i.e., derivative of the motor shaft's angular position m) of the motor's output shaft rotations. ∑ Jm is the rotational inertia of the motor

  5. Geddesí second letter: A letter to the editor

    E-Print Network [OSTI]

    Smith, Val H.

    2005-10-01

    , ďShorter, warmer winters and drier summers are here. Warmer spring temperatures cause our rivers to peak about two weeks earlier than in the pastÖThese changes are consistent with global cli- mate models predicting the greatest warming over the higher... Strategies for Global Change 9: 315Ė33. Nordhaus WD. 2001. Global warming eco- nomics. Science 294: 1283Ė84. Schelling TC. 2002. What makes green- house sense? Foreign Affairs MayĖJune. Geddesí second letter, recycled from another of his newspaper columns...

  6. Recover Power with Hydraulic Motors

    E-Print Network [OSTI]

    Brennan, J. R.

    1982-01-01

    Anywhere liquid pressure is reduced across a throttling device, there is a potential application for a hydraulic power recovery motor (HPRM). Cost of power makes HPRM's attractive with recoveries as small as 25 hp on a continuous basis. When...

  7. MOTOR POOL RESERVATIONS Reservation Number:_______________

    E-Print Network [OSTI]

    Ottino, Julio M.

    of Department Chair or Organization Advisor: ________________________________________ Chart String Number: Fund: ______________________________________________________________________ Name of Department or Organization: _____________________________________________________ Name reservations require the "Organization Authorization for University Vehicles" form to be faxed to Motor Pool

  8. Systems & Control Letters 31, 199205, 1997

    E-Print Network [OSTI]

    Lewis, Andrew D.

    Systems & Control Letters 31, 199≠205, 1997 Decompositions for control systems on manifolds In this letter we present a decomposition for control systems whose drift vector field is the geodesic spray are able to easily prove some special results for this class of control systems. Examples illustrate

  9. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R. (Salt Lake City, UT)

    1998-01-01

    A positive-drive field actuator motor 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.

  10. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1998-03-10

    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.

  11. Motor Systems | 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 RankADVANCED MANUFACTURING OFFICESpecialAPPENDIX F WetlandsofOpen-AccessMotor Systems Motor Systems Dramatic

  12. A Novel Approach to Determining Motor Load†

    E-Print Network [OSTI]

    Brown, M.

    1992-01-01

    TO DETERMINING MOTOR LOAD by Michael Brown Georgia Tech Research Institute Atlanta, Georgia ABSTRACf Properly sized electric motors are essential if industrial plant efficiency is to be optimized and energy costs minimized. Because of the difficully..., oversizing is usually unwarranted and ultimately leads to ineffi-eiency and energy waste. This paper ex.amines methods to determine underloaded motor operdtion and presents an evaluation of the savings afforded by properly sizing of motors. MOTOR...

  13. Letters of Expectation for Campus Alberta November 7, 2013

    E-Print Network [OSTI]

    Calgary, University of

    1 Fact sheet Letters of Expectation for Campus Alberta November 7, 2013 Letters of Expectation Alberta system. The Letters of Expectation were first introduced in Budget 2013 and these are the first-month collaborative process among the government and all 26 Campus Alberta post-secondary institutions. Each letter

  14. Human Resource Procedure: Employment Offer Letters Revised May 21, 2014

    E-Print Network [OSTI]

    Stuart, Steven J.

    Human Resource Procedure: Employment Offer Letters 1 Revised ≠ May 21, 2014 Purpose An offer letter and employee regarding the employee's employment with Clemson. Therefore, all offer letters need to contain specific and accurate information about the offer of employment. When is an offer letter used? Offer

  15. Magnetic tweezers to studyMagnetic tweezers to studyMagnetic tweezers to studyMagnetic tweezers to study DNA motorsDNA motorsDNA motorsDNA motors

    E-Print Network [OSTI]

    Ritort, Felix

    to study DNA motorsDNA motorsDNA motorsDNA motors MariaMariaMariaMaria MaŮosasMaŮosasMaŮosasMaŮosas Ritort) ∑ Applications: 1. Tracking DNA motors: (i) Helicases (ii) Annealing motor 2. Studying a multiprotein system: DNA hexamers (Dong et al, JBC 1995) Tracking DNA motors: (i) Helicases #12;Passive: helicase behaves

  16. Improve Motor Operation at Off-Design Voltages - Motor Tip Sheet #9

    SciTech Connect (OSTI)

    2008-07-01

    Motors are designed to operate within +/- 10% of their nameplate rated voltages. When motors operate at conditions of over- or under-voltage, motor efficiency and other performance parameters are degraded.

  17. Submersible canned motor transfer pump

    DOE Patents [OSTI]

    Guardiani, R.F.; Pollick, R.D.; Nyilas, C.P.; Denmeade, T.J.

    1997-08-19

    A transfer pump is described which is used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank. 17 figs.

  18. Assessing the Energy Efficiency Potential of Industrial Motor Systems

    E-Print Network [OSTI]

    McKane, Aimee

    2014-01-01

    2003. Energy-efficient motor systems in the industrial andpotential for energy efficiency in industrial motor systemspotential for energy efficiency in industrial motor systems

  19. Selected Bibliography on Electric Motor Repair | Department of...

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

    Selected Bibliography on Electric Motor Repair Selected Bibliography on Electric Motor Repair The following series of repair documents related to electric motors were produced by...

  20. Sensor Network for Motor Energy Management | Department of Energy

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

    Sensor Network for Motor Energy Management Sensor Network for Motor Energy Management Remote Sensing Electric Motor Operation Optimizes Maintenance and Energy Efficiency Electric...

  1. Functional Magnetic Resonance Imaging of Motor Cortex Activation in Schizophrenia

    E-Print Network [OSTI]

    2015-01-01

    Magnetic Resonance Imaging of Motor Cortex Activation inBrain dysfunction during motor activation and corpus callo-Lee HJ, et al. ē FMRI of Motor Cortex Activation in

  2. Lab 4 -Motor Constants and Sensor Calibration Consider a DC servo motor which is connected to a power supply. The motor inertia is Jm. The rotational

    E-Print Network [OSTI]

    Stanford University

    Lab 4 - Motor Constants and Sensor Calibration PRE-LAB Consider a DC servo motor which is connected to a power supply. The motor inertia is Jm. The rotational damping in the motor is bm. The motor produces a torque Tm = Kmi where Km is the motor's torque constant and i is the current from the power supply. a

  3. Three phase AC motor controller

    DOE Patents [OSTI]

    Vuckovich, Michael (Elizabeth, PA); Wright, Maynard K. (Bethel Park, PA); Burkett, John P. (South Huntington Township, Westmoreland County, PA)

    1984-03-20

    A motor controller for a three phase AC motor (10) which is adapted to operate bidirectionally from signals received either from a computer (30) or a manual control (32). The controller is comprised of digital logic circuit means which implement a forward and reverse command signal channel (27, 29) for the application of power through the forward and reverse power switching relays (16, 18, 20, 22). The digital logic elements are cross coupled to prevent activation of both channels simultaneously and each includes a plugging circuit (65, 67) for stopping the motor upon the removal of control signal applied to one of the two channels (27, 29) for a direction of rotation desired. Each plugging circuit (65, 67) includes a one-shot pulse signal generator (88, 102) which outputs a single pulse signal of predetermined pulsewidth which is adapted to inhibit further operation of the application of power in the channel which is being activated and to apply a reversal command signal to the other channel which provides a reversed phase application of power to the motor for a period defined by the pulse-width output of the one-shot signal generator to plug the motor (10) which will then be inoperative until another rotational command signal is applied to either of the two channels.

  4. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor DomainDynein Motor

  5. DYNAMICS OF FUNCTIONAL CONNECTIVITY WITHIN CORTICAL MOTOR NETWORK DURING MOTOR LEARNING IN STROKE - CORRELATIONS WITH "TRUE" MOTOR RECOVERY

    E-Print Network [OSTI]

    BANI-AHMED, ALI

    2013-08-31

    investigate the changes in cortical motor function at two levels, regional (micro-circuitry, regional activation) and network (macro-circuitry, functional connectivity), following an arm-focused motor training in chronic stroke survivors and how these brain...

  6. Homopolar motor with dual rotors

    DOE Patents [OSTI]

    Hsu, J.S.

    1998-12-01

    A homopolar motor has a field rotor mounted on a frame for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor mounted for rotation on said frame within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor. The two rotors are coupled through a 1:1 gearing mechanism, so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed. 7 figs.

  7. Thermoelectric generator for motor vehicle

    DOE Patents [OSTI]

    Bass, John C. (6121 La Pintra Dr., La Jolla, CA 92037)

    1997-04-29

    A thermoelectric generator for producing electric power for a motor vehicle from the heat of the exhaust gasses produced by the engine of the motor vehicle. The exhaust gasses pass through a finned heat transfer support structure which has seat positions on its outside surface for the positioning of thermoelectric modules. A good contact cylinder provides a framework from which a spring force can be applied to the thermoelectric modules to hold them in good contact on their seats on the surface of the heat transfer support structure.

  8. Efficient, Inexpensive Motors: A New Trend in The Motors Market†

    E-Print Network [OSTI]

    Wroblewksi, R. G.

    2001-01-01

    criteria ABB 0 100Baldor GE 50 83 Part of Marathon Grainger!Dayton Leeson Lincoln 81 67 46 78 12 24 51 60 67 62 54 Magnetek Marathon Reliance Siemens Sterling Tatung Teco/Westinghouse Toshiba U.S. Motors WEG Table 3 is a list...

  9. Policy Flash 2013-51 311 Notice Aquisition Letter 2013-05 Financial...

    Energy Savers [EERE]

    Policy Flash 2013-51 311 Notice Aquisition Letter 2013-05 Financial Assistance Letter 2013-03 Policy Flash 2013-51 311 Notice Aquisition Letter 2013-05 Financial Assistance Letter...

  10. Policy Flash 2014-20 / Acquisition Letter 2014-05 / Financial...

    Energy Savers [EERE]

    0 Acquisition Letter 2014-05 Financial Acquisition Letter 2014-02 Policy Flash 2014-20 Acquisition Letter 2014-05 Financial Acquisition Letter 2014-02 DATE: March 10, 2014...

  11. Author's personal copy Surface Science Letters

    E-Print Network [OSTI]

    De Micheli, Giovanni

    as hydroxyl groups for repelling non-speci c DNA. This letter proposes a new kind of ethylene-glycol silane Special ethylene-glycol silanes terminated with amine and methoxyl groups were designed by us

  12. ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2012)

    E-Print Network [OSTI]

    Gerber, Edwin

    2012-01-01

    ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2012) Published online in Wiley Online Library using National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP) concentrations and sea- surface temperatures (SSTs). These integrations enable the relative role of ozone

  13. BIOGEOCHEMISTRY LETTERS Chronic nitrogen additions suppress decomposition

    E-Print Network [OSTI]

    Templer, Pamela

    BIOGEOCHEMISTRY LETTERS Chronic nitrogen additions suppress decomposition and sequester soil carbon dioxide emis- sions, offsetting a substantial portion of greenhouse gas forcing of the climate system. Although a number of factors are responsible for this terrestrial carbon sink, atmospheric nitrogen

  14. NNSA Policy Letter: NAP-4B

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

    Policy Letter: NAP-4B Date: June 30,2008 TITLE: Corporate Performance Evaluation Process for M&O Contractors I. OBJECTIVE: To establish and implement a uniform, corporate process...

  15. Letters

    E-Print Network [OSTI]

    our readers, From

    2012-01-01

    Bill. Today, UCís land- grant university thrives as the Agricultural Experiment Stations at UC Berkeley, Davis

  16. Letters

    E-Print Network [OSTI]

    Readers, Our

    2013-01-01

    and Solar Energy Co-Production Project. On page 62, ďNitrogen fertilizer use in California: Assessing the data,

  17. Letter

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E C H N ILessonsLessons

  18. Motor Energy Saving Opportunities in an Industrial Plant†

    E-Print Network [OSTI]

    Kumar, B.; Elwell, A.

    1999-01-01

    Industrial plants have enormous energy saving opportunities with electric motors. Improving motor efficiency is a conventional wisdom to save energy. Re-engineering affords far greater savings opportunities than motor efficiency improvement. Motor...

  19. Writing Motor Specifications - How to Include Efficiency†

    E-Print Network [OSTI]

    Quartermaine, B. J.

    1980-01-01

    The escalating cost of electric power coupled with the rapid depletion of our non-renewable resources makes consideration of motor efficiency good sense both from economic and conservation viewpoints. The efficiency of an electric motor can...

  20. Impact of Motor Failures on Payback Periods†

    E-Print Network [OSTI]

    Cheek, K. F.; Pillay, P.; Dudley, K. J.

    1995-01-01

    This paper uses MotorMaster and Vaughen's Complete Price Guide to determine payback periods for different motor failure scenarios. Some scenarios considered are rewinds, reconditions, and replacement of bearings. Prices for these repairs...

  1. Sensorless performance evaluation of induction motors

    E-Print Network [OSTI]

    Ahmed, Shehab

    2000-01-01

    In this thesis, various aspects of induction motor performance are discussed. The importance of the speed-torque curve for an induction motor system and its various applications are emphasized. Difficulties in the presently available methods...

  2. Learning Motor Skills: From Algorithms to Robot

    E-Print Network [OSTI]

    Learning Motor Skills: From Algorithms to Robot Experiments Erlernen Motorischer Fšhigkeiten: Von Algorithmen zu Roboter-Experimenten Zur Erlangung des akademischen Grades Doktor-Ingenieur (Dr Motor Skills: From Algorithms to Robot Experiments Erlernen Motorischer Fšhigkeiten: Von Algorithmen zu

  3. Self-bearing motor design & control

    E-Print Network [OSTI]

    Imani Nejad, Mohammad

    2013-01-01

    This thesis presents the design, implementation and control of a new class of self-bearing motors. The primary thesis contributions include the design and experimental demonstration of hysteresis self-bearing motors, novel ...

  4. Replacing an Oversized and Underloaded Electric Motor

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

    interpolation between a motor's full- and half-load current values. The modified equation, useful for estimating loads in the 50% to full-load range, is: Motor Load 0.5 +...

  5. 3M's Motor Challenge Showcase Demonstration Project†

    E-Print Network [OSTI]

    Schultz, S. C.

    1998-01-01

    Challenge is a U.S. Department of Energy initiative to promote the efficient use of energy in electric motor systems. Showcase Demonstration Projects are used to exemplify the benefits that motor system optimization can provide. This Showcase Project...

  6. Frequency modulation drive for a piezoelectric motor

    DOE Patents [OSTI]

    Mittas, Anthony (Albuquerque, NM)

    2001-01-01

    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.

  7. Motorized control for mirror mount apparatus

    DOE Patents [OSTI]

    Cutburth, Ronald W. (Tracy, CA)

    1989-01-01

    A motorized control and automatic braking system for adjusting mirror mount apparatus is disclosed. The motor control includes a planetary gear arrangement to provide improved pitch adjustment capability while permitting a small packaged design. The motor control for mirror mount adjustment is suitable for laser beam propagation applications. The brake is a system of constant contact, floating detents which engage the planetary gear at selected between-teeth increments to stop rotation instantaneously when the drive motor stops.

  8. Using MotorMaster to Track Motor Inventory and Analyze Purchasing Decisions†

    E-Print Network [OSTI]

    Brown, M.; Meffort, W.

    2007-01-01

    MotorMaster 4.0 can be a useful software package for electric motor management decisions in industrial facilities. To be successful, the MotorMaster database must be populated with detailed motor nameplate information. Georgia Tech worked with a...

  9. Conducting a Motor Survey: Key Step for Establishing a Motor Management Policy†

    E-Print Network [OSTI]

    Miller, R. B.

    2002-01-01

    Roughly 70% of the energy consumed by manufacturing processes is used by electric motors. According to the U.S. Department of Energy, greater attention to motor systems management can reduce motor-related energy costs by 18%. Establishing a motor...

  10. Coupling between motor proteins determines dynamic behaviors of motor protein assemblies

    E-Print Network [OSTI]

    Coupling between motor proteins determines dynamic behaviors of motor protein assemblies Jonathan W of intracellular cargos by multiple microtubule motor proteins is believed to be a common and significant phenomenon in vivo, yet signatures of the microscopic dynamics of multiple motor systems are only now

  11. Data Needs for Evolving Motor Vehicle Emission Modeling Approaches

    E-Print Network [OSTI]

    Guensler, Randall

    1993-01-01

    Agency; Highway Vehicle Emission Estimates; Office offor Evolving Motor Vehicle Emission Modeling Approachesfor Evolving Motor Vehicle Emission Modeling Approaches

  12. Electric Motor What happens if we put

    E-Print Network [OSTI]

    Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

    Electric Motor What happens if we put a loop of wire carrying a current in a B field ? FB on opposite sides of the loop produce a torque on the loop causing it to rotate. Electric motor ≠ a commutator. #12;Electric Motor Define normal n to plane using right-hand rule Torque tends to rotate loop to align

  13. Lithographically Patterned Channels Spatially Segregate Kinesin Motor

    E-Print Network [OSTI]

    Hancock, William O.

    Lithographically Patterned Channels Spatially Segregate Kinesin Motor Activity and Effectively Received March 25, 2003 ABSTRACT To extract useful work from biological motor proteins, it is necessary microfabrication to construct 1.5-Ķm-deep channels in SU-8 photoresist patterned on glass. Although motor proteins

  14. INDUCTION MOTOR FAULT DIAGNOSTIC AND MONITORING METHODS

    E-Print Network [OSTI]

    Povinelli, Richard J.

    INDUCTION MOTOR FAULT DIAGNOSTIC AND MONITORING METHODS by Aderiano M. da Silva, B.S. A Thesis;i Abstract Induction motors are used worldwide as the "workhorse" in industrial applications material. However, induction motor faults can be detected in an initial stage in order to prevent

  15. General Motors Clean Combustion Engines Advanced

    E-Print Network [OSTI]

    Siefert, Chris

    General Motors Clean Combustion Engines Advanced with Predictive Simulation Tools Sandia National Laboratories (SNL) has been working with General Motors (GM) for over 30 years. In the last few years General Motors n Daniel Dedrick, an SNL researcher, handles a complex metal hydride within an inert

  16. Microtubule Motors in Microfluidics Maruti Uppalapati,

    E-Print Network [OSTI]

    Hancock, William O.

    CHAPTER 1 3 Microtubule Motors in Microfluidics Maruti Uppalapati, 1 Ying-Ming Huang, 2 Shankar-mail: wohbio@engr.psu.edu 311 Abstract Kinesin motor proteins carry out a range of transport functions that successfully integrates microtubule-based transport. Key terms kinesin microtubule transport motor protein

  17. Letter of Evaluation For: ______________________________ Furman ID# __________________ Letter requested for admittance into the profession of ___________________________________

    E-Print Network [OSTI]

    requested for admittance into the profession of ___________________________________ Applicant: Before you are required to submit letters of evaluation that detail that student's fitness for the profession. Schools are best suited to this demanding profession. Below are some suggestions for writing a letter of evaluation

  18. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

    DOE Patents [OSTI]

    Casada, Donald A. (Oak Ridge, TN)

    1996-01-01

    A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization.

  19. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

    DOE Patents [OSTI]

    Casada, D.A.

    1996-01-16

    A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization. 14 figs.

  20. Motor protein accumulation on antiparallel microtubule overlaps

    E-Print Network [OSTI]

    Hui-Shun Kuan; M. D. Betterton

    2015-09-24

    Biopolymers serve as one-dimensional tracks on which motor proteins move to perform their biological roles. Motor protein phenomena have inspired theoretical models of one-dimensional transport, crowding, and jamming. Experiments studying the motion of Xklp1 motors on reconstituted antiparallel microtubule overlaps demonstrated that motors recruited to the overlap walk toward the plus end of individual microtubules and frequently switch between filaments. We study a model of this system that couples the totally asymmetric simple exclusion process (TASEP) for motor motion with switches between antiparallel filaments and binding kinetics. We determine steady-state motor density profiles for fixed-length overlaps using exact and approximate solutions of the continuum differential equations and compare to kinetic Monte Carlo simulations. The center region, far from the overlap ends, has a constant motor density as one would na\\"ively expect. However, rather than following a simple binding equilibrium, the center motor density depends on total overlap length, motor speed, and motor switching rate. The size of the crowded boundary layer near the overlap ends is also dependent on the overlap length and switching rate in addition to the motor speed and bulk concentration. The antiparallel microtubule overlap geometry may offer a novel mechanism for biological regulation of protein concentration and consequent activity.

  1. Chemistry in Motion: Tiny Synthetic Motors

    E-Print Network [OSTI]

    Peter H. Colberg; Shang Yik Reigh; Bryan Robertson; Raymond Kapral

    2014-11-03

    In this Account, we describe how synthetic motors that operate by self-diffusiophoresis make use of a self-generated concentration gradient to drive motor motion. A description of propulsion by self-diffusiophoresis is presented for Janus particle motors comprising catalytic and noncatalytic faces. The properties of the dynamics of chemically powered motors are illustrated by presenting the results of particle-based simulations of sphere-dimer motors constructed from linked catalytic and noncatalytic spheres. The geometries of both Janus and sphere-dimer motors with asymmetric catalytic activity support the formation of concentration gradients around the motors. Because directed motion can occur only when the system is not in equilibrium, the nature of the environment and the role it plays in motor dynamics are described. Rotational Brownian motion also acts to limit directed motion, and it has especially strong effects for very small motors. We address the following question: how small can motors be and still exhibit effects due to propulsion, even if only to enhance diffusion? Synthetic motors have the potential to transform the manner in which chemical dynamical processes are carried out for a wide range of applications.

  2. Motor protein accumulation on antiparallel microtubule overlaps

    E-Print Network [OSTI]

    Kuan, Hui-Shun

    2015-01-01

    Biopolymers serve as one-dimensional tracks on which motor proteins move to perform their biological roles. Motor protein phenomena have inspired theoretical models of one-dimensional transport, crowding, and jamming. Experiments studying the motion of Xklp1 motors on reconstituted antiparallel microtubule overlaps demonstrated that motors recruited to the overlap walk toward the plus end of individual microtubules and frequently switch between filaments. We study a model of this system that couples the totally asymmetric simple exclusion process (TASEP) for motor motion with switches between antiparallel filaments and binding kinetics. We determine steady-state motor density profiles for fixed-length overlaps using exact and approximate solutions of the continuum differential equations and compare to kinetic Monte Carlo simulations. The center region, far from the overlap ends, has a constant motor density as one would na\\"ively expect. However, rather than following a simple binding equilibrium, the center ...

  3. Traffic by small teams of molecular motors

    E-Print Network [OSTI]

    Melanie J. I. MŁller; Janina Beeg; Rumiana Dimova; Stefan Klumpp; Reinhard Lipowsky

    2008-07-07

    Molecular motors transport various cargos along cytoskeletal filaments, analogous to trucks on roads. In contrast to vehicles, however, molecular motors do not work alone but in small teams. We describe a simple model for the transport of a cargo by one team of motors and by two teams of motors, which walk into opposite directions. The cooperation of one team of motors generates long-range transport, which we observed experimentally in vitro. Transport by two teams of motors leads to a variety of bidirectional motility behaviour and to dynamic instabilities reminiscent of spontaneous symmetry breaking. We also discuss how cargo transport by teams of motors allows the cell to generate robust long-range bidirectional transport.

  4. DOE Directives and NNSA Policy Letters Enforceable under 10 C...

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

    DOE Directives and NNSA Policy Letters Enforceable under 10 C.F.R. Part 824 DOE Directives and NNSA Policy Letters Enforceable under 10 C.F.R. Part 824 June 26, 2015 - 2:24pm...

  5. Policy Flash 20 Acquisition Letter 2014-05/Financial Acquisition...

    Office of Environmental Management (EM)

    301 Contract Award letter FY2014 March 5.pdf Attachment 2A1 DOE Section 301 Financial Assistance Letter FY2014 March 5 2014.pdf Attachment 2A2 DOE Section 301 Financial Assistance...

  6. System and method for motor speed estimation of an electric motor

    DOE Patents [OSTI]

    Lu, Bin (Kenosha, WI); Yan, Ting (Brookfield, WI); Luebke, Charles John (Sussex, WI); Sharma, Santosh Kumar (Viman Nagar, IN)

    2012-06-19

    A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. The processing unit is also configured to estimate a motor speed based on the voltage value, the frequency value, the load value, and the set of nameplate data and also store the motor speed on the computer readable storage medium.

  7. HEALTH PROFESSIONS LETTER OF EVALUATION REQUEST TRUMAN STATE UNIVERSITY

    E-Print Network [OSTI]

    Gering, Jon C.

    HEALTH PROFESSIONS LETTER OF EVALUATION REQUEST TRUMAN STATE UNIVERSITY: Date: I hereby give permission for the Truman Health Professions

  8. Sandia aids FBI in investigation of anthrax letters

    SciTech Connect (OSTI)

    Paul Kotula and Joe Michael

    2008-11-19

    Paul Kotula and Joe Michael of Sandia National Laboratories discuss their work in the FBI anthrax letters investigation.

  9. Sandia aids FBI in investigation of anthrax letters

    ScienceCinema (OSTI)

    Paul Kotula and Joe Michael

    2010-01-08

    Paul Kotula and Joe Michael of Sandia National Laboratories discuss their work in the FBI anthrax letters investigation.

  10. Reduced vibration motor winding arrangement

    DOE Patents [OSTI]

    Slavik, C.J.; Rhudy, R.G.; Bushman, R.E.

    1997-11-11

    An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of {radical}3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency. 4 figs.

  11. Reduced vibration motor winding arrangement

    DOE Patents [OSTI]

    Slavik, Charles J. (Rexford, NY); Rhudy, Ralph G. (Scotia, NY); Bushman, Ralph E. (Lathem, NY)

    1997-01-01

    An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of .sqroot.3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency.

  12. Electrostatic generator/motor configurations

    DOE Patents [OSTI]

    Post, Richard F

    2014-02-04

    Electrostatic generators/motors designs are provided that generally may include a first cylindrical stator centered about a longitudinal axis; a second cylindrical stator centered about the axis, a first cylindrical rotor centered about the axis and located between the first cylindrical stator and the second cylindrical stator. The first cylindrical stator, the second cylindrical stator and the first cylindrical rotor may be concentrically aligned. A magnetic field having field lines about parallel with the longitudinal axis is provided.

  13. The effects of mnemonics on letter recognition and letter sound acquisition of at-risk kindergarten students†

    E-Print Network [OSTI]

    White, Teresa

    2009-05-15

    This study examined the effectiveness of embedded picture mnemonic alphabet cards on the acquisition of letter name and letter sound knowledge with at-risk kindergarten students in a rural Texas public school. The study ...

  14. Montana State University 1 College of Letters and

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    /cell-biology-neuroscience/phd-neuroscience) Department of Chemistry and Biochemistry (http:// catalog.montana.edu/graduate/letters-science/chemistry- biochemistry) ∑ M.S. in Chemistry (http://catalog.montana.edu/graduate/letters- science/chemistry-biochemistry/ms-chemistry) ∑ M.S. in Biochemistry (http://catalog.montana.edu/graduate/letters- science/chemistry

  15. Letter Spirit: Recognition and Creation of Letterforms Based

    E-Print Network [OSTI]

    Indiana University

    of the word. Letter Spirit explores creativity through the use of a design task, the art of letter design. Like most visual design tasks, letter design is deeply tied to the conceptual level. Artificial for stir≠fry beef and broccoli by substi≠ tuting ``broccoli'' for ``green beans'' in a recipe that it has

  16. Method for assessing in-service motor efficiency and in-service motor/load efficiency

    DOE Patents [OSTI]

    Kueck, John D. (Oak Ridge, TN); Otaduy, Pedro J. (Oak Ridge, TN)

    1997-01-01

    A method and apparatus for assessing the efficiency of an in-service motor. The operating characteristics of the in-service motor are remotely measured. The operating characteristics are then applied to an equivalent circuit for electrical motors. Finally the equivalent circuit is evaluated to determine the performance characteristics of said in-service motor. Based upon the evaluation an individual is able to determine the rotor speed, power output, efficiency, and toque of the in-service motor. Additionally, an individual is able to confirm the calculations by comparing measured values with values obtained as a result of the motor equivalent circuit evaluation.

  17. Half a Century of Physical Review Letters

    ScienceCinema (OSTI)

    Garisto, Robert

    2010-01-08

    Fifty years ago, Sam Goudsmit started an experiment: the journal Physical Review Letters. †Since 1958, the experiment has thrived. PRL has gone through many changes, published many important papers, and become a leader in international scientific publication. †I will trace the rise of PRL from its early 20th century roots as "Letters to the Editor," through changes in editorial process and advents of new technology. Along the way I'll show what has gone on behind the scenes, and give a glimpse of our plans for the future. †I'll also give some advice to would-be authors and referees, illustrated with interesting correspondence we've received.

  18. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB PacketDieselAbsorption Techniques |Dr.Dr.Durathon(tm)Dynein Motor

  19. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor Domain Shows

  20. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor Domain ShowsDynein

  1. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor Domain

  2. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14Dynein Motor DomainDynein

  3. Efficient Motor System Tools Sponsored by the DOE Motor Challenge Program†

    E-Print Network [OSTI]

    Blazewicz, S.; McCoy, G. A.; Olszewski, M.; Scheihing, P.

    1995-01-01

    The Department of Energy's (DOE) Motor Challenge program is an industry/government collaborative that is working to increase the market penetration of efficient motor-driven systems. In support of the program's Showcase Demonstrations, a variety...

  4. When Should Inverter-Duty Motors Be Specified? - Motor Tip Sheet #14

    SciTech Connect (OSTI)

    2008-07-01

    Electronic adjustable speed drives (ASDs) used to be marketed as ďusable with any standard motor.Ē However, premature failures of motor insulation systems began to occur with the introduction of fast-switching pulse-width modulated (PWM) drives.

  5. System and method for determining stator winding resistance in an AC motor using motor drives

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G; Zhang, Pinjia

    2013-02-26

    A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.

  6. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E. (Durham, CT); Perry, Carl A. (Middletown, CT); Wassell, Mark E. (Kingwood, TX); Barbely, Jason R. (Middletown, CT); Burgess, Daniel E. (Middletown, CT); Cobern, Martin E. (Cheshire, CT)

    2010-07-27

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  7. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E. (Durham, CT); Perry, Carl A. (Middletown, CT); Wassell, Mark E. (Kingwood, TX); Barbely, Jason R. (Middletown, CT); Burgess, Daniel E. (Middletown, CT); Cobern, Martin E. (Cheshire, CT)

    2008-06-24

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  8. Application Guidelines for Energy Efficient Motors

    E-Print Network [OSTI]

    Cowern, E. H.

    1983-01-01

    GUIDELINES FOR ENERGY EFFICIENT MOTORS" Edward H. Cowern, P. E. Baldor Electric Company Hallingford, CT Abstract - Rapidly rlslng power costs have promp ted industrial motor users to consider specifying motors having efficiencies higher than the norm... and marketing posi tions. He is currently the New England District Manager for Baldor Electric Company and pre~ident of EMS, Inc. 480 ESL-IE-83-04-73 Proceedings from the Fifth Industrial Energy Technology Conference Volume II, Houston, TX, April 17...

  9. MotorMaster+ | 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 RankADVANCED MANUFACTURING OFFICESpecialAPPENDIX F WetlandsofOpen-AccessMotor Systems Motor MotorMaster+

  10. Motor Fleet Request/Authorization Page 1 UNCW Travel System

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Motor Fleet Request/Authorization Page 1 UNCW Travel System Motor Fleet Request/Travel Authorization ENTER THE MOTOR FLEET REQUEST IN THE TRANSPORTATION SECTION OF THE TRAVEL AUTHORIZATION. PRESS CLICK TO ADD AND SELECT MOTOR FLEET FROM THE DROP-DOWN BOX. #12;Motor Fleet Request/Authorization Page 2

  11. Electric Motor Remanufacturing and Energy Savings Sahil Sahni1

    E-Print Network [OSTI]

    Gutowski, Timothy

    Electric Motor Remanufacturing and Energy Savings Sahil Sahni1 , Avid Boustani1 , Timothy Gutowski to this study. #12;Contents 1 Introduction to Electric Motors 1 1.1 Motor Classifications . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Performance of Motors . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Impact of motor

  12. Cooperative transport by small teams of molecular motors

    E-Print Network [OSTI]

    Stefan Klumpp; Melanie J. I. Muller; Reinhard Lipowsky

    2006-12-04

    Molecular motors power directed transport of cargoes within cells. Even if a single motor is sufficient to transport a cargo, motors often cooperate in small teams. We discuss the cooperative cargo transport by several motors theoretically and explore some of its properties. In particular we emphasize how motor teams can drag cargoes through a viscous environment.

  13. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, Michael Alan (Toledo, OH)

    1999-01-01

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor.

  14. Estimating Motor Efficiency in the Field

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

    testing procedures as described in Institute of Electrical and Electronics Engineers (IEEE) Standard 112-2004 (Test Method B). Field measurements for determining motor efficiency...

  15. Buying an Energy-Efficient Electric Motor

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

    efficiency testing protocol is the Institute of Electrical and Elec- tronics Engineers (IEEE ) 112 Method B, which uses a dynamometer to measure motor output under load. Different...

  16. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, M.A.

    1999-07-20

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor. 2 figs.

  17. GREEK LETTERS Learn the names of Greek letters not just the obvious ones like alpha,

    E-Print Network [OSTI]

    Lozano-Robledo, Alvaro

    GREEK LETTERS Learn the names of Greek letters ¬≠ not just the obvious ones like alpha, beta, and pi A ¬ī (alpha) a B ¬ī (beta) b ¬ī¬Ķ¬Ķ (gamma) g ¬ī (delta) d E ¬īo (epsilon) e Z ¬ī (zeta) z H ¬ī (eta) ee ¬ī (theta atom ¬īo book ¬īo basic Bo ¬ī Boston ¬Ķ¬ī geometry ¬ī language ¬ī French ¬Ķo¬ī democracy ¬īo tooth ¬ī energy E

  18. 3.1. MOTOR SYSTEM 35 3.1 Motor System

    E-Print Network [OSTI]

    Toronto, University of

    3.1. MOTOR SYSTEM 35 3.1 Motor System The motor system comprises the dynamic model of the fish fish's brain. Since our goal is to animate an animal realistically and at reasonable computational cost controllers by gleaning information from the fish biomechanics literature (Blake, 1983; Alexander, 1992

  19. Motor VFDs | 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 QA:QAsource History ViewMayo, Maryland: EnergyInformation MontanaOhio:Hill,Morrisville, NewMoshanirMotor

  20. BSA Motors | 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 QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to:Greece: EnergyMontana)District Office JumpBRMFBSA Motors

  1. Aurica Motors | 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 QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A SOpenAshley,AtlantisstromAugusta County,Aurica Motors Jump

  2. Electric Motors and Critical Materials

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n cEnergy (AZ,Local Government Nonprofit ResidentialofUlrich -andandMOTORS

  3. How to Build a Motor

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.Food Drive HolidayHoursa Wind Turbine WorksMotor

  4. Motor Pool Guidelines for Geosciences A completed Motor Pool Request form must be submitted to Denise for

    E-Print Network [OSTI]

    Fay, Noah

    Motor Pool Guidelines for Geosciences ∑ A completed Motor Pool Request form must be submitted on the Geosciences website under the forms link. http://www.geo.arizona.edu/pdf/motor_pool_request.pdf ∑ If the trip be submitted with the Motor Pool Request. ∑ A list of passengers and drivers is for all motor pool travel (this

  5. 1999 Macmillan Magazines Ltd letters to nature

    E-Print Network [OSTI]

    Seideman, Tamar

    © 1999 Macmillan Magazines Ltd letters to nature 52 NATURE |VOL 401 |2 SEPTEMBER 1999 |www Research Council of Canada, Ottawa, Ontario, Canada K1A 0R6. The vibrational resolution of our photoelectron spectra allows for a direct observation of the underlying nuclear

  6. Canadian Nuclear Astrophysics Institute Letter of Intent

    E-Print Network [OSTI]

    Herwig, Falk

    1 Canadian Nuclear Astrophysics Institute Letter of Intent Final version April 29, 2011), astrophysics and nuclear physics theory and computational simulation (TC) as well as nuclear physics Nuclear astrophysics investigates the origin of the elements in all astrophysical environments, as well

  7. ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2013)

    E-Print Network [OSTI]

    Lee, Sukyoung

    2013-01-01

    ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2013) Published online in Wiley Online Library Sciences, Seoul National University, Seoul, South Korea *Correspondence to: C. Yoo, Center for Atmosphere). A number of studies have shown that the MJO plays an important role in modulating the extratropical cir

  8. IEEE SIGNAL PROCESSING LETTERS 1 Optimum Update

    E-Print Network [OSTI]

    Girod, Bernd

    energy in motion-compensated predictive cod- ing. The appropriate motion compensation for the update stepIEEE SIGNAL PROCESSING LETTERS 1 Optimum Update for Motion-Compensated Lifting Bernd Girod, Fellow-compensated lifting, the update step typically reverses the motion vectors from the prediction step. Where motion

  9. Academic Integrity: A Letter to My Students

    E-Print Network [OSTI]

    McQuade, D. Tyler

    , or the possibility of advancement, or our esteem in the eyes of others? Personal integrity is not a quality weAcademic Integrity: A Letter to My Students ¬Ļ Here at the beginning of the semester I want to say something to you about academic integrity. I'm deeply convinced that integrity is an essential part of any

  10. Sample Job Offer Letter Best Company, Inc.

    E-Print Network [OSTI]

    Awtar, Shorya

    Sample Job Offer Letter Best Company, Inc. 1553 Job Street, Ann Arbor, MI 48105 (Tel) (734) 000 would like to offer (student's name here) an internship position. Below is the information you requested: 1553 Job Street, Ann Arbor, MI 48105 Number of hours worked per week: 40 Official offer beginning

  11. Development of Ulta-Efficient Electric Motors

    SciTech Connect (OSTI)

    Shoykhet, B.; Schiferl, R.; Duckworth, R.; Rey, C.M.; Schwenterly, S.W.; Gouge, M.J.

    2008-05-01

    Electric motors utilize a large amount of electrical energy in utility and industrial applications. Electric motors constructed with high temperature superconducting (HTS) materials have the potential to dramatically reduce electric motor size and losses. HTS motors are best suited for large motor applications at ratings above 1000 horsepower (hp), where the energy savings from the efficiency improvement can overcome the additional power required to keep the superconductors on the rotor cooled. Large HTS based motors are expected to be half the volume and have half the losses of conventional induction motors of the same rating. For a 5000 hp industrial motor, this energy savings can result in $50,000 in operating cost savings over the course of a single year of operation. Since large horsepower motors utilize (or convert) about 30% of the electrical power generated in the United States and about 70% of large motors are candidates for replacement by HTS motors, the annual energy savings potential through the utilization of HTS motors can be up to $1 Billion in the United States alone. Research in the application of HTS materials to electric motors has lead to a number of HTS motor prototypes yet no industrial HTS motor product has yet been introduced. These motor demonstrations have been synchronous motors with HTS field windings, on the rotor. Figure 1-1 shows a solid model rendering of this type of motor. The rotor winding is made with HTS coils that are held at cryogenic temperature by introducing cooling fluid from the cryocooler to the rotor through a transfer coupling. The stator winding is made of copper wire. The HTS winding is thermally isolated from the warm armature and motor shafts by a vacuum insulation space and through the use of composite torque tubes. The stator in Figure 1-1 is an air core stator in that the stator teeth and a small part of the yoke is made up of nonmagnetic material so the magnetic fields distribute themselves as if in air. Between the HTS field winding and the physical air gap is a series of concentric cylinders that act as vacuum insulation space walls as well as conducting paths for induced currents to flow in order to shield the HTS winding and the rotor cold space from time dependent fields. These time dependent fields may be caused by rotor hunting, during a change in motor load, or by non-fundamental component voltages and currents applied by the inverter. These motors are variable speed controlled by the inverter. Common large motor utility and industrial applications are pump and fan drives that are best suited by a variable speed motor. Inverter control of the HTS motor eliminates the need to design the rotor for line starting, which would dump a large amount of heat into the rotor that would then heavily tax the cryogenic cooling system. The field winding is fed by a brushless exciter that provides DC current to the HTS rotor winding. The stator winding is air or water cooled. Technical and commercial hurdles to industrial HTS motor product introduction and customer acceptance include (1) the high cost of HTS wire and the cryogenic cooling system components, (2) customer concerns about reliability of HTS motors, and (3) the ability to attain the loss reduction potential of large HTS motors. Reliance Electric has demonstrated a number of HTS based electric motors up to a 1000 hp, variable speed synchronous motor with an HTS field winding in the year 2000. In 2001 this motor was tested to 1600 hp with a sinusoidal (constant frequency) supply. Figure 1-2 shows the HTS motor on the dynamometer test stand in the Reliance Electric test lab. The extensive test program of the 1000 hp motor successfully demonstrated the technical feasibility of large HTS motors and the basic technologies involved, however the test results did indicate the need for design refinements. In addition, test results served to identify other more fundamental critical technology issues, and revealed the need to continue research efforts in order to improve future HTS motor first cost, reliability, and performa

  12. The US Motor Systems Market Assessment: Baseline and Survey Methods†

    E-Print Network [OSTI]

    Rosenberg, M.

    1997-01-01

    This paper summarizes the current status of the US Motor Systems Market Assessment. This component of the Department of Energy's Motor Challenge program will provide a detailed portrait of the inventory of motor systems currently in use in US...

  13. What does motor efference copy represent? evidence from speech production

    E-Print Network [OSTI]

    Niziolek, CA; Nagarajan, SS; Houde, JF

    2013-01-01

    What does motor efference copy represent? Evidence fromAbbreviated title: What does motor efference copy represent?SJ, Wang X (2003) Sensory-Motor Interaction in the Primate

  14. Motor Neurons Controlling Fluid Ingestion in Drosophila melanogaster

    E-Print Network [OSTI]

    Manzo, Andrea

    2011-01-01

    coordination of rhythmic motor patterns. J Neurophysiol 90:Figure 3.5. Individual motor neurons project to eitherGraphs as in (C-D) for MN12 motor neurons. n=10-13 flies per

  15. On the Costs of Air Pollution from Motor Vehicles

    E-Print Network [OSTI]

    Small, Kenneth A.; Kazimi, Camilla

    1995-01-01

    Costs of Air Pollution fromMotor Vehicles By Kenneth A.we have found, motor vehicle pollution sterns best addressedCosts of Air Pollution from Motor Vehicles K A Small and Cį

  16. BPM Motors in Residential Gas Furnaces: What are the Savings?

    E-Print Network [OSTI]

    Lutz, James; Franco, Victor; Lekov, Alex; Wong-Parodi, Gabrielle

    2006-01-01

    Power curves show blower motor input power as a function ofOverall, it appears the BPM motors used in furnaces offerThe impact of ECM furnace motors on natural gas use and

  17. MOTORIZED WINTER RECREATION IMPACTS ON SNOWPACK PROPERTIES Submitted by

    E-Print Network [OSTI]

    Anderson, Charles W.

    THESIS MOTORIZED WINTER RECREATION IMPACTS ON SNOWPACK PROPERTIES Submitted by Jared Tucker Heath 2011 All Rights Reserved #12;ii ABSTRACT MOTORIZED WINTER RECREATION IMPACTS ON SNOWPACK PROPERTIES interactions. Motorized winter recreation in the backcountry compacts the snow possibly influencing

  18. Influence of direct motor-motor interaction in models for cargo transport by a single team of motors

    E-Print Network [OSTI]

    Sebastian Bouzat; Fernando Falo

    2010-12-14

    We analyze theoretically the effects of excluded-volume interactions between motors on the dynamics of a cargo driven by multiple motors. The model considered shares many commons with other recently proposed in the literature, with the addition of direct interaction between motors and motor back steps. The cargo is assumed to follow a continuum Langevin dynamics, while individual motors evolve following a Monte Carlo algorithm based on experimentally accessible probabilities for discrete forward and backward jumps, and attachment and detachment rates. The links between cargo and motors are considered as non linear springs. By means of numerical simulations we compute the relevant quantities characterizing the dynamical properties of the system, and we compare the results to those for non interacting motors. We find that interactions lead to quite relevant changes in the force-velocity relation for cargo, with a considerable reduction of the stall force, and cause also a notable decrease of the run length. These effects are mainly due to traffic-like phenomena in the microtubule. The consideration of several parallel tracks for motors reduces such effects. However, we find that for realistic values of the number of motors and the number of tracks, the influence of interactions on the global parameters of transport of cargo are far from being negligible. Our studies provide also an analysis of the relevance of motor back steps on the modeling, and of the influence of different assumptions for the detachment rates. In particular, we discuss these two aspects in connection with the possibility of observing processive back motion of cargo at large load forces.

  19. Rare-Earth-Free Traction Motor: Rare Earth-Free Traction Motor for Electric Vehicle Applications

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike todayís large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldorís motor could be light, compact, contain no rare earth materials, and have the potential to deliver more torque at a substantially lower cost. Key innovations in this project include the use of a unique motor design, incorporation of an improved cooling system, and the development of advanced materials manufacturing techniques. These innovations could significantly reduce the cost of an electric motor.

  20. Total Economics of Energy Efficient Motors

    E-Print Network [OSTI]

    Nester, A. T.

    1984-01-01

    Due to the large increases in cost of electrical energy in recent years, the energy savings attainable with the use of energy-efficient motors is very attractive to all motor users. But energy and electric demand charge savings tell only part...

  1. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

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

    1988-01-01

    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.

  2. Commercial Motor Vehicle Brake Assessment Tools

    E-Print Network [OSTI]

    Commercial Motor Vehicle Brake Assessment Tools Commercial Motor Vehicle Roadside Technology to deceleration in g's ≠ Passing score: BE43.5 ∑ Enforcement tool for only 3 years. ∑ Based solely on brake Brake Research ∑ CMVRTC research built on these enforcement tools ≠ Correlation Study ≠ Level-1 / PBBT

  3. Molecular Motors Interacting with Their Own Tracks

    E-Print Network [OSTI]

    Max N. Artyomov; Alexander Yu. Morozov; Anatoly B. Kolomeisky

    2007-12-20

    Dynamics of molecular motors that move along linear lattices and interact with them via reversible destruction of specific lattice bonds is investigated theoretically by analyzing exactly solvable discrete-state ``burnt-bridge'' models. Molecular motors are viewed as diffusing particles that can asymmetrically break or rebuild periodically distributed weak links when passing over them. Our explicit calculations of dynamic properties show that coupling the transport of the unbiased molecular motor with the bridge-burning mechanism leads to a directed motion that lowers fluctuations and produces a dynamic transition in the limit of low concentration of weak links. Interaction between the backward biased molecular motor and the bridge-burning mechanism yields a complex dynamic behavior. For the reversible dissociation the backward motion of the molecular motor is slowed down. There is a change in the direction of the molecular motor's motion for some range of parameters. The molecular motor also experiences non-monotonic fluctuations due to the action of two opposing mechanisms: the reduced activity after the burned sites and locking of large fluctuations. Large spatial fluctuations are observed when two mechanisms are comparable. The properties of the molecular motor are different for the irreversible burning of bridges where the velocity and fluctuations are suppressed for some concentration range, and the dynamic transition is also observed. Dynamics of the system is discussed in terms of the effective driving forces and transitions between different diffusional regimes.

  4. Duty-ratio of cooperative molecular motors

    E-Print Network [OSTI]

    Nadiv Dharan; Oded Farago

    2012-01-22

    Molecular motors are found throughout the cells of the human body, and have many different and important roles. These micro-machines move along filament tracks, and have the ability to convert chemical energy into mechanical work that powers cellular motility. Different types of motors are characterized by different duty-ratios, which is the fraction of time that a motor is attached to its filament. In the case of myosin II - a non-processive molecular machine with a low duty ratio - cooperativity between several motors is essential to induce motion along its actin filament track. In this work we use statistical mechanical tools to calculate the duty ratio of cooperative molecular motors. The model suggests that the effective duty ratio of non-processive motors that work in cooperation is lower than the duty ratio of the individual motors. The origin of this effect is the elastic tension that develops in the filament which is relieved when motors detach from the track.

  5. Entropic Studies of Cytoskeletal Motors Jamming

    E-Print Network [OSTI]

    C. M. Arizmendi; H. G. E. Hentschel; F. Family

    2007-04-28

    Can the different causes for disruption of intracellular transport be traced from the trajectories of the molecular motors on the cytoskeletal filaments? We will attempt to answer this important question in a Monte Carlo model of microtubule-motor protein interaction from the point of view of information theory.

  6. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, J.M.; Sereshteh, A.

    1988-08-30

    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. Nanoconfined catalytic ŇngstrŲm-size motors

    E-Print Network [OSTI]

    Peter H. Colberg; Raymond Kapral

    2015-01-13

    Chemically-powered synthetic micron and nano-scale motors that propel themselves in solution are being intensively studied because of the wide range of potential applications that exploit their directed motion. Recent experiments have shown that, even on the molecular scale, small-molecule catalysts and single enzyme molecules exhibit properties that have been attributed to self-propulsion. Simulations of very small {\\AA}ngstr\\"om-size synthetic motors in bulk solution have shown similar effects. Applications of such small motors in the cell or in microfluidic devices require knowledge of how these motors interact with boundaries. Molecular dynamics is used to investigate the properties of {\\AA}ngstr\\"om-size synthetic chemically-powered motors confined between walls separated by distances of tens of nanometers. Evidence for strong structural ordering of the motors between the walls, which reflects the finite size of solvent molecules and depends on solvent exclusion forces, is provided. Dynamical properties, such as average motor velocity, orientational relaxation and mean square displacement, are anisotropic and depend on the distance from the walls. This research presents information needed for potential applications that use these motors in the complex confined geometries encountered in biology and the laboratory.

  8. Performance improvement of permanent magnet ac motors

    E-Print Network [OSTI]

    Parsa, Leila

    2005-08-29

    positively to output torque, a five-phase permanent magnet motor with quasi-rectangular back-EMF waveform is supplied with combined fundamental and third harmonic of currents. For modeling and analysis of the motor a 0 3 3 1 1 q d q d frame of reference...

  9. A Five-Leg Inverter for Driving a Traction Motor and a Compressor Motor

    SciTech Connect (OSTI)

    Su, Gui-Jia; Hsu, John S

    2006-01-01

    This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in EV/HEV applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further cost savings are made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

  10. Improve Motor System Efficiency with MotorMaster+, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2008-12-01

    This fact sheet describes how the Industrial Technologies Program MotorMaster+ software tool aids industrial plants with finding energy-efficient motor replacement options and managing motor systems.

  11. The China Motor Systems Energy Conservation Program: A major national initiative to reduce motor system energy use in China

    E-Print Network [OSTI]

    Nadel, Steven; Wang, Wanxing; Liu, Peter; McKane, Aimee T.

    2001-01-01

    Motor Systems Energy Conservation Program: A Major Nationalnational program tentatively called the China Motor Systems Energy Conservation Program.a major national program to reduce motor system energy use.

  12. ŇngstrŲm-scale chemically powered motors

    E-Print Network [OSTI]

    Peter H. Colberg; Raymond Kapral

    2014-05-16

    Like their larger micron-scale counterparts, {\\AA}ngstr\\"om-scale chemically self-propelled motors use asymmetric catalytic activity to produce self-generated concentration gradients that lead to directed motion. Unlike their micron-scale counterparts, the sizes of {\\AA}ngstr\\"om-scale motors are comparable to the solvent molecules in which they move, they are dominated by fluctuations, and they operate on very different time scales. These new features are studied using molecular dynamics simulations of small sphere dimer motors. We show that the ballistic regime is dominated by the thermal speed but the diffusion coefficients of these motors are orders of magnitude larger than inactive dimers. Such small motors may find applications in nano-confined systems or perhaps eventually in the cell.

  13. High-speed electrical motor evaluation

    SciTech Connect (OSTI)

    Not Available

    1989-02-03

    Under this task, MTI conducted a general review of state-of-the-art high-speed motors. The purpose of this review was to assess the operating parameters, limitations and performance of existing motor designs, and to establish commercial sources for a motor compatible with the requirements of the Brayton-cycle system. After the motor requirements were established, a list of motor types, manufacturers and designs capable of achieving the requisite performance was compiled. This list was based on an in-house evaluation of designs. Following the establishment of these options, a technical evaluation of the designs selected was conducted. In parallel with their evaluations, MTI focused on the establishment of commercial sources.

  14. Best Practices in Non-Motorized Transport Planning, Implementation...

    Open Energy Info (EERE)

    Best Practices in Non-Motorized Transport Planning, Implementation and Maintenance Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Best Practices in Non-Motorized...

  15. Improve Motor Operation at Off-Design Voltages

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  16. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  17. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems

  18. When Should Inverter-Duty Motors Be Specified?

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  19. Carbonyl Emissions from Gasoline and Diesel Motor Vehicles

    E-Print Network [OSTI]

    Jakober, Chris A.

    2008-01-01

    fraction of light-duty gasoline vehicle particulate matterQuinone emissions from gasoline and diesel motor vehicles.32 organic compounds from gasoline- powered motor vehicles.

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

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

    sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes...

  1. United States Industrial Motor Systems Market Opportunities Assessment...

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

    Motor Systems Market Opportunities Assessment: Executive Summary United States Industrial Motor Systems Market Opportunities Assessment: Executive Summary In addition to serving...

  2. Continuous Energy Improvement in Motor Driven Systems - A Guidebook...

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

    Energy Improvement in Motor Driven Systems - A Guidebook for Industry Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry This guidebook provides a...

  3. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, Donald A. (Knoxville, TN)

    1996-01-01

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device.

  4. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    2010-06-25

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems.

  5. United States Industrial Motor-Driven Systems Market Assessment...

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

    United States Industrial Motor-Driven Systems Market Assessment: Charting a Roadmap to Energy Savings for Industry United States Industrial Motor-Driven Systems Market Assessment:...

  6. When Should Inverter-Duty Motors Be Specified? | Department of...

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

    power semiconductors can lead to voltage overshoots. These voltage spikes can rapidly damage a motor's insulation system, resulting in premature motor failure. This tip sheet...

  7. Advanced Power Electronics and Electric Motors R&D

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

    (PM) Motors Reduce cost by 75% - required to meet 2020 target Motor design optimization may reduce cost by 25% to 40%. Magnet Materials Magnet material costs are 50%...

  8. Premium Efficiency Motor Selection and Application Guide - A...

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

    identifying energy and cost savings that can come from replacing motors with premium efficiency units. The handbook provides an overview of current motor use in the industrial...

  9. New rocket propellant and motor design offer high-performance...

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

    New rocket propellant and motor design offer high-performance and safety New rocket propellant and motor design offer high-performance and safety Scientists recently flight tested...

  10. Ultra-Efficient and Power-Dense Electric Motors

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

    Ultra-Efficient and Power-Dense Electric Motors Advanced Electric Motors Offer Large Energy Savings in Industrial Applications Pumps, fans, and compressors use more than 60% of...

  11. Exposure to motor vehicle emissions: An intake fraction approach

    E-Print Network [OSTI]

    Marshall, Julian D.

    2002-01-01

    on California Light-Duty Vehicle Emissions." EnvironmentalGasoline on Motor Vehicle Emissions. 2. Volatile OrganicGasoline on Motor Vehicle Emissions. I. Mass Emission

  12. Sept 2001 Rough Draft OFFM Policy Letter 02-1.doc | Department...

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

    Sept 2001 Rough Draft OFFM Policy Letter 02-1.doc Sept 2001 Rough Draft OFFM Policy Letter 02-1.doc Sept 2001 Rough Draft OFFM Policy Letter 02-1.doc More Documents & Publications...

  13. Electrostatic generator/motor configurations

    DOE Patents [OSTI]

    Post, Richard Freeman

    2012-09-11

    Electrostatic generators/motors designs are provided that include a stator fixedly connected to a first central support centered about a central axis. The stator elements are attached to the first central support. Similarly, a second stator is connected to a central support centered about the central axis, and the second stator has stator elements attached to the second central support. A rotor is located between the first stator and the second stator and includes an outer support, where the rotor is rotatably centered about the central axis, the rotor having elements in contact with the outer support, each rotor element having an extending rotor portion that extends radially from the outer support toward the axis of rotation.

  14. Honda motor company's CVCC engine

    SciTech Connect (OSTI)

    Abernathy, W.J.; Ronan, L.

    1980-07-01

    Honda Motor Company of Japan in a four-year period from 1968 to 1872 designed, tested, and mass-produced a stratified charge engine, the CVCC, which in comparison to conventional engines of similar output at the time was lower in CO, HC and NO/sub x/ emissions and higher in fuel economy. Honda developed the CVCC engine without government assistance or outside help. Honda's success came at a time when steadily increasing fuel costs and the various provisions of the Clean Air Act had forced US automakers to consider possible alternatives to the conventional gasoline engine. While most major engine manufacturers had investigated some form of stratified charge engine, Honda's CVCC was the only one to find successful market application. This case study examines the circumstances surrounding the development of the CVCC engine and its introduction into the Japanese and American markets.

  15. Letter from Commonwealth to Mirant Potomac River Concerning Serious...

    Office of Environmental Management (EM)

    to Mirant Potomac River Concerning Serious Violations of the National Ambient Air Quality Standards for Sulfur Dioxide Letter from Commonwealth to Mirant Potomac River Concerning...

  16. Sample Letter of Inquiry Ready Reference F-4

    E-Print Network [OSTI]

    Sample Letter of Inquiry Ready Reference F-4 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of Engineering, Architecture & Technology Career

  17. Sample Status Inquiry Letter Ready Reference F-9

    E-Print Network [OSTI]

    Sample Status Inquiry Letter Ready Reference F-9 College of Engineering, Architecture & Technology Career Services Oklahoma State University College of College of Engineering, Architecture & Technology

  18. Letter from Plumbing Manufacturers Institute to Department of...

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

    Letter from Plumbing Manufacturers Institute to Department of Energy re: Ex Parte Communication More Documents & Publications Supplemental Comments of the Plumbing Manufacturers...

  19. Letter from Secretary Samuel Bodman's to President of the Senate...

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

    of provisions to facilitate the licensing, construction, and operation of a repository at Yucca Mountain. Letter from Secretary Samuel Bodman's to President of the Senate Richard...

  20. Letter to Congress RE: Office of Civilian Radioactive Waste Management...

    Office of Environmental Management (EM)

    to Congress RE: Office of Civilian Radioactive Waste Management's Annual Financial Report Letter to Congress RE: Office of Civilian Radioactive Waste Management's Annual Financial...

  1. TransmittalLetter.pdf | 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 RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavingsTransmission SEABTransmittalLetter.pdf

  2. Policy Flash 2015-14 - Acquisition Letter 2015-03/Financial Assistance...

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

    Letter 2015-03Financial Acquisition Letter 2015-02 Congressional Notifications and Quarterly Reporting to the Appropriations Committees Subject to Energy and Water Development and...

  3. Post-Closure Inspection Letter Report for Corrective Action Units on the Nevada National Security Site

    SciTech Connect (OSTI)

    Boehlecke, Robert F.

    2013-05-28

    This letter serves as the post-closure inspection letter report for corrective action units on the Nevada Naational Security Site for calendar year 2012.

  4. Policy Flash 2015-14 Acquisition Letter 2015-03/Financial Acquisition...

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

    4 Acquisition Letter 2015-03Financial Acquisition Letter 2015-02 Congressional Notifications and Quarterly Reporting to the Appropriations Committees Subject to Energy and Water...

  5. Policy Flash 2013-64 Acquisition Letter 10 and Class Deviation...

    Energy Savers [EERE]

    64 Acquisition Letter 10 and Class Deviation for Nondisplacement of Qualified Workers Policy Flash 2013-64 Acquisition Letter 10 and Class Deviation for Nondisplacement of...

  6. Policy Flash 2014-29 Acquisition Letter 2014-07 - Benchmark Compensati...

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

    Letter 2014-07 - Benchmark Compensation Amount for Individual Executive Salary Actions Policy Flash 2014-29 Acquisition Letter 2014-07 - Benchmark Compensation Amount for...

  7. The efficiency of the molecular motors

    E-Print Network [OSTI]

    Yunxin Zhang

    2009-02-12

    Molecular motors convert chemical energy into mechanical work while operating in an environment dominated by Brownian motion. The aim of this paper is to explore the flow of energy between the molecular motors and its surroundings, in particular, its efficiency. Based on the Fokker-Planck equation with either $N$ or infinite chemical states, we find that the energy efficiency of the molecular motors, whether the Stokes efficiency or the usual thermodynamic efficiency, is strictly bounded by 1, because of the dissipation of the energy in both the overdamped surroundings and in the process of the chemical reaction.

  8. Extended core for motor/generator

    DOE Patents [OSTI]

    Shoykhet, Boris A.

    2006-08-22

    An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.

  9. Extended core for motor/generator

    DOE Patents [OSTI]

    Shoykhet, Boris A.

    2005-05-10

    An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.

  10. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque

    DOE Patents [OSTI]

    Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

    2014-10-28

    A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.

  11. Homopolar dc motor and trapped flux brushless dc motor using high temperature superconductor materials

    SciTech Connect (OSTI)

    Crapo, A.D.; Lloyd, J.D. (Emerson Electric Co., St. Louis, MO (US))

    1991-03-01

    This paper reports on two motors designed and built for use with high temperature superconductor (HTSC) materials. They are a homopolar DC motor that will use HTSC field windings and a brushless DC motor that will use bulk HTSC material to trap flux in steel rotor poles. The HTSC field windings of the homopolar DC motor are designed to operate at 1000 Amperes/cm{sup 2} in a 0.010 Tesla (100 Gauss) field. In order to maximize torque in the homopolar DC motor, an iron magnetic circuit with small air gaps gives maximum flux for minimum Ampere turns in the field. A copper field winding version of the homopolar DC motor has been tested while the authors wait for 575 Ampere turn HTSC coils.

  12. Report on Toyota Prius Motor Thermal Management

    SciTech Connect (OSTI)

    Hsu, J.S.

    2005-02-11

    In the current hybrid vehicle market, the Toyota Prius drive system is considered the leader in electrical, mechanical, and manufacturing innovations. It is a significant accomplishment that Toyota is able to manufacture and sell the vehicle for a profit. The Toyota Prius traction motor design approach for reducing manufacturing costs and the motor s torque capability have been studied and tested. The findings were presented in two previous Oak Ridge National Laboratory (ORNL) reports. The conclusions from this report reveal, through temperature rise tests, that the 2004 Toyota Prius (THSII) motor is applicable only for use in a hybrid automobile. It would be significantly undersized if used in a fuel cell vehicle application. The power rating of the Prius motor is limited by the permissible temperature rise of the motor winding (170 C) and the motor cooling oil (158 C). The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. They are approximately 15 kW with 105 C coolant and 21 kW with 35 C coolant. These continuous ratings are much lower than the 30 kW specified as a technical motor target of the U.S. Department of Energy FreedomCAR Program. All tests were conducted at about 24 C ambient temperature. The load angle of each torque adjustment was monitored to prevent a sudden stop of the motor if the peak torque were exceeded, as indicated by the load angle in the region greater than 90 electrical degrees. For peak power with 400 Nm torque at 1200 rpm, the permissible running time depends upon the initial winding temperature condition. The projected rate of winding temperature rise is approximately 2.1 C/sec. The cooling-oil temperature does not change much during short peak power operation. For light and medium load situations, the efficiency varies from 80% to above 90%, and the power factor varies from 70% to above 90%, depending on the load and speed. When the motor is loaded heavily near the peak-torque (400-Nm) region, the efficiency goes down to the 40-50% range, and the power factor is nearly 100%. The efficiency is not a major concern at the high-torque region. The water-ethylene-glycol heat exchanger attached to the motor is small. During continuous operation, it dissipates about 76% of the total motor heat loss with 35 C coolant. The heat exchanger is less effective when the coolant temperature increases. With 75 C coolant, the heat exchanger dissipates about 38% of the motor heat. When the coolant temperature is 105 C, the heat exchanger not only stops cooling the motor but also adds heat to the large motor housing that acts as an air-cooled heat sink. From start to the base speed, 400 Nms of torque can be produced by the Prius motor with a reasonably low stator current. However, the permissible running time of the motor depends on the load drawn from the motor and the coolant temperature. In the Toyota Prius hybrid configuration, if the motor gets too hot and cannot keep running, the load can be shifted back to the engine. The motor acts to improve the system efficiency without being overly designed. A detailed thermal model was developed to help predict the temperature levels in key motor components. The model was calibrated and compared with the experimentally measured temperatures. Very good agreement was obtained between model and experiment. This model can now be used to predict the temperature of key motor components at a variety of operating conditions and to evaluate the thermal characteristics of new motor designs. It should be pointed out that a fuel-cell motor does not have an engine to fall back on to provide the needed wheel power. Therefore, the design philosophy of a fuel-cell motor is very different from that of a hybrid Prius motor. Further thermal management studies in the high-speed region of the Prius motor, fed by its inverter, are planned.

  13. Motor transport of self-assembled cargos in crowded environments

    E-Print Network [OSTI]

    Ross, Jennifer

    Motor transport of self-assembled cargos in crowded environments Leslie Conwaya , Derek Woodb is performed by multiple motors working in concert. However, the mechanism of motor association to cargos is unknown. It is also unknown how long individual motors stay attached, how many are active, and how

  14. Inferring Motor Programs from Images of Handwritten Digits

    E-Print Network [OSTI]

    Hinton, Geoffrey E.

    Inferring Motor Programs from Images of Handwritten Digits Geoffrey Hinton and Vinod Nair whose stiffnesses are controlled by a motor program. We show how neural networks can be trained to infer the motor programs required to accurately reconstruct the MNIST digits. The inferred motor programs can

  15. Motor Fleet Approval Process Page 1 UNCW Travel System

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Motor Fleet Approval Process Page 1 UNCW Travel System Motor Fleet Approval Process Preparer submits the motor fleet vehicle request; and the request is automatically routed to the traveler an e-mail notifying them there are pending motor fleet signatures. If you are both supervisor

  16. 38 CHAPTER 1. ASSEMBLY MANUAL BiDirectional Motor

    E-Print Network [OSTI]

    38 CHAPTER 1. ASSEMBLY MANUAL Bi≠Directional Motor and Infrared Beacon Uni≠Directional Motor, LED to build reliable cables and connectors for the motors and sensors that will plug into the robot more reliable overall and will ease development difficulties. Sensors and motors are built

  17. Convective Cooling and Passive Stack Improvements in Motors (Presentation)

    SciTech Connect (OSTI)

    Bennion, K.

    2014-06-01

    This presentation discusses current research at NREL in convective cooling and passive stack improvements in motors.

  18. Case Histories of Energy Efficient Motors

    E-Print Network [OSTI]

    Riley, J. C.; Comiskey, W. T

    1985-01-01

    A number of new energy efficient (EE) motors have been installed at the Port Neches SBR plant in the past few years. Some of these installations presented many problems. The measurement of dollars saved has been difficult. Easy installations...

  19. High speed linear induction motor efficiency optimization

    E-Print Network [OSTI]

    Johnson, Andrew P. (Andrew Peter)

    2005-01-01

    One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies. This has restricted the ...

  20. Selected Bibliography on Electric Motor Repair

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

    Bethel, Noah, P., "Fault Zone Analysis Identifies Motor Defects in Detail." Pulp & Paper, Vol. 72, No. 2, February 1998, p. 87-93. Discussion of 5 fault zones to look at...

  1. Scaling Reinforcement Learning Paradigms for Motor Control†

    E-Print Network [OSTI]

    Vijayakumar, Sethu; Peters, Jan; Schaal, Stefan

    Reinforcement learning offers a general framework to explain reward related learning in artificial and biological motor control. However, current reinforcement learning methods rarely scale to high dimensional movement systems ...

  2. Solid State AC Motor Drives - Conservation Perspectives†

    E-Print Network [OSTI]

    Mohan, N.; Ferraro, R. J.

    1982-01-01

    Variable Frequency Solid-State Inverters: can control the speed of ac motors by producing adjustable frequency ac voltage, with an enormous potential for energy conservation in pumps and air handling systems. 3. Other Variable Frequency Drives: include...

  3. Total Energy Management in General Motors

    E-Print Network [OSTI]

    DeKoker, N.

    1979-01-01

    This paper presents an overview of General Motors' energy management program with special emphasis on energy conservation. Included is a description of the total program organization, plant guidelines, communication and motivation techniques...

  4. Method and apparatus for large motor control

    DOE Patents [OSTI]

    Rose, Chris R. (Santa Fe, NM); Nelson, Ronald O. (White Rock, NM)

    2003-08-12

    Apparatus and method for providing digital signal processing method for controlling the speed and phase of a motor involves inputting a reference signal having a frequency and relative phase indicative of a time based signal; modifying the reference signal to introduce a slew-rate limited portion of each cycle of the reference signal; inputting a feedback signal having a frequency and relative phase indicative of the operation of said motor; modifying the feedback signal to introduce a slew-rate limited portion of each cycle of the feedback signal; analyzing the modified reference signal and the modified feedback signal to determine the frequency of the modified reference signal and of the modified feedback signal and said relative phase between said modified reference signal and said modified feedback signal; and outputting control signals to the motor for adjusting said speed and phase of the motor based on the frequency determination and determination of the relative phase.

  5. Desk for Lynn Motors Mgrs. Office†

    E-Print Network [OSTI]

    Raiford Stripling Associates, Inc.; Stripling, Raiford L.

    2011-08-29

    This paper introduces an air-conditioning water system in a hotel building in Harbin, finishes its air-conditioning energy consumption measurement in summer conditions, and presents an estimation index of performance of chiller, pump and motor...

  6. Modeling and optimization of permanent magnetic motors

    E-Print Network [OSTI]

    Pinkham, Andrew P

    2008-01-01

    This thesis develops analytic models for the prediction and optimization of radial-flux permanent magnet motor torque and efficiency. It also facilitates the design optimization of electromagnetically-powered rotorcraft ...

  7. ac-driven atomic quantum motor

    E-Print Network [OSTI]

    A. V. Ponomarev; S. Denisov; P. Hanggi

    2009-06-09

    We invent an ac-driven quantum motor consisting of two different, interacting ultracold atoms placed into a ring-shaped optical lattice and submerged in a pulsating magnetic field. While the first atom carries a current, the second one serves as a quantum starter. For fixed zero-momentum initial conditions the asymptotic carrier velocity converges to a unique non-zero value. We also demonstrate that this quantum motor performs work against a constant load.

  8. Equivalent Circuit Modeling of Hysteresis Motors

    SciTech Connect (OSTI)

    Nitao, J J; Scharlemann, E T; Kirkendall, B A

    2009-08-31

    We performed a literature review and found that many equivalent circuit models of hysteresis motors in use today are incorrect. The model by Miyairi and Kataoka (1965) is the correct one. We extended the model by transforming it to quadrature coordinates, amenable to circuit or digital simulation. 'Hunting' is an oscillatory phenomenon often observed in hysteresis motors. While several works have attempted to model the phenomenon with some partial success, we present a new complete model that predicts hunting from first principles.

  9. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1995-07-11

    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.

  10. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R. (Salt Lake City, UT)

    1995-01-01

    A high-torque, low speed, positive-drive field actuator motor 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.

  11. Loose mechanochemical coupling of molecular motors

    E-Print Network [OSTI]

    Yunxin Zhang

    2011-05-05

    In living cells, molecular motors convert chemical energy into mechanical work. Its thermodynamic energy efficiency, i.e. the ratio of output mechanical work to input chemical energy, is usually high. However, using two-state models, we found the motion of molecular motors is loosely coupled to the chemical cycle. Only part of the input energy can be converted into mechanical work. Others is dissipated into environment during substeps without contributions to the macro scale unidirectional movement.

  12. Trapped field internal dipole superconducting motor generator

    DOE Patents [OSTI]

    Hull, John R. (Downers Grove, IL)

    2001-01-01

    A motor generator including a high temperature superconductor rotor and an internally disposed coil assembly. The motor generator superconductor rotor is constructed of a plurality of superconductor elements magnetized to produce a dipole field. The coil assembly can be either a conventional conductor or a high temperature superconductor. The superconductor rotor elements include a magnetization direction and c-axis for the crystals of the elements and which is oriented along the magnetization direction.

  13. Motor Thermal Control | 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 RankADVANCED MANUFACTURING OFFICESpecialAPPENDIX F WetlandsofOpen-AccessMotor Systems Motor Systems

  14. MotorMaster+ International | 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 RankADVANCED MANUFACTURING OFFICESpecialAPPENDIX F WetlandsofOpen-AccessMotor Systems Motor Systems

  15. Are motor proteins power strokers, Brownian motors or Brian Geislingera, Erin Darnellb, Kimberly Farrisc, and Ryoichi Kawaia

    E-Print Network [OSTI]

    Kawai, Ryoichi

    Are motor proteins power strokers, Brownian motors or both? Brian Geislingera, Erin Darnellb Baccalaureate, Birmingham, AL 35210 ABSTRACT About a decade ago Brownian motors were introduced as a possible mechanism for motor protein mobility. Since then many theoretical and experimental papers have been

  16. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, Bernard T. (Livermore, CA); Dreifuerst, Gary R. (Livermore, CA); Post, Richard F. (Walnut Creek, CA)

    1998-01-01

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

  17. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, B.T.; Dreifuerst, G.R.; Post, R.F.

    1998-01-06

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An ``inside-out`` design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then ``switched`` or ``commutated`` to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives. 17 figs.

  18. Molecular motors: design, mechanism and control

    E-Print Network [OSTI]

    Debashish Chowdhury

    2008-01-10

    Biological functions in each animal cell depend on coordinated operations of a wide variety of molecular motors. Some of the these motors transport cargo to their respective destinations whereas some others are mobile workshops which synthesize macromolecules while moving on their tracks. Some other motors are designed to function as packers and movers. All these motors require input energy for performing their mechanical works and operate under conditions far from thermodynamic equilibrium. The typical size of these motors and the forces they generate are of the order of nano-meters and pico-Newtons, respectively. They are subjected to random bombardments by the molecules of the surrounding aqueous medium and, therefore, follow noisy trajectories. Because of their small inertia, their movements in the viscous intracellular space exhibits features that are characteristics of hydrodynamics at low Reynold's number. In this article we discuss how theoretical modeling and computer simulations of these machines by physicists are providing insight into their mechanisms which engineers can exploit to design and control artificial nano-motors.

  19. Mathematics as a Profession: A Letter to Students Hassan Azad

    E-Print Network [OSTI]

    Azad, Hassan

    1 Mathematics as a Profession: A Letter to Students Hassan Azad (This letter was written originally the university with clear ideas about a profession in engineering or business. I have been teaching mathematics obvious mathematical talents. For such students, adopting mathematics as a profession would be more

  20. LETTERS TO THE EDITOR This Letters section is for publishing (a) brief acoustical research or applied acoustical reports, (b)

    E-Print Network [OSTI]

    Gerstoft, Peter

    or applied acoustical reports, (b) comments on articles or letters previously published in this Journal, and (c) a reply by the article author to criticism by the Letter author in (b). Extensive reports should to a single fre- quency plane wave. The conventional response is given by2 C = wT Rw, 1 where w

  1. Analysis of a 10% RPS - Response letter summarizing principal conclusions of supplement

    Reports and Publications (EIA)

    2003-01-01

    Transmittal letter for the supplement to the Service Report 'Analysis of a 10% Renewable Portfolio Standard'.

  2. USRussianLetter.pdf | Department of Energy

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinal design andBiofuels for MilitaryUSRussianLetter.pdf

  3. U.S. Department of Energy's Motor Challenge Program: A National...

    Office of Environmental Management (EM)

    Energy's Motor Challenge Program: A National Strategy for Energy Efficient Industrial Motor-Driven Systems U.S. Department of Energy's Motor Challenge Program: A National Strategy...

  4. Impact of California Reformulated Gasoline On Motor Vehicle Emissions. 1. Mass Emission Rates

    E-Print Network [OSTI]

    Kirchstetter, Thomas W.; Singer, Brett C.; Harley, Robert A.

    1999-01-01

    California reformulated gasoline on motor vehicle emissions.Impact of California Reformulated Gasoline OIl Motor Vehicleprogress, increased vehicle Gasoline Motor on Vehicle travel

  5. Descriptions of Motor Vehicle Collisions by Participants in Emergency DepartmentĖBased Studies: Are They Accurate?

    E-Print Network [OSTI]

    2012-01-01

    reports in determining motor vehicle crash characteristics.R ESEARCH Descriptions of Motor Vehicle Collisions byThe immediate aftermath of motor vehicle collisions. In:

  6. Motor Response Selection in Overt Sentence Production: A Functional MRI Study

    E-Print Network [OSTI]

    Tremblay, Pascale; Small, Steven L.

    2011-01-01

    The development of oral motor control and language. DownsRelative www.frontiersin.org Motor response selection instruc- tures participating in motor prepa- ration in humans:

  7. Impacts of motor vehicle operation on water quality - Clean-up Costs and Policies

    E-Print Network [OSTI]

    Nixon, Hilary; Saphores, Jean-Daniel M

    2007-01-01

    preventing water pollution from motor vehicles would be muchgroundwater pollution; motor-vehicle transportation;the environmental costs of motor vehicle transportation in

  8. Facilitation of motor and bladder function after spinal cord injury via epidural stimulation and pharmacology

    E-Print Network [OSTI]

    Gad, Parag

    2013-01-01

    lumbar spinal cord learn a motor task?. Medicine & ScienceExternal urethral sphincter motor unit recruitment patterns304. Grillner, S. (2003). The motor infrastructure: from ion

  9. The Cost of Crop Damage Caused by Ozone Air Pollution From Motor Vehicles

    E-Print Network [OSTI]

    Delucchi, Mark A.; Murphy, James; Kim, Jin; McCubbin, Donald R.

    1996-01-01

    without motor-vehicle related pollution. This diagram is forBY OZONE AIR POLLUTION FROM MOTOR VEHICLES Report #12 in thePOLLUTION FROM MOTOR VEHICLES

  10. Impacts of motor vehicle operation on water quality - Clean-up Costs and Policies

    E-Print Network [OSTI]

    Nixon, Hilary; Saphores, Jean-Daniel M

    2007-01-01

    groundwater pollution; motor-vehicle transportation;pads. Second, as motor vehicle pollution is often created apreventing water pollution from motor vehicles would be much

  11. The Cost of Reduced Visibility Due to Particulate Air Pollution From Motor Vehicles

    E-Print Network [OSTI]

    Delucchi, Mark A.; Murphy, James; McCubbin, Donald R.; Kim, Jin

    1996-01-01

    of all anthropogenic TSP pollution, and of motor-vehicle TSPPARTICULATE AIR POLLUTION FROM MOTOR VEHICLES Report #13 inPOLLUTION FROM MOTOR VEHICLES

  12. Multi-sensor Wireless System for Fault Detection in Induction Motors

    E-Print Network [OSTI]

    Tarkesh Esfahani, Ehsan

    2012-01-01

    2 Faults in Motors 2.1 Bearing Faultcombined faults in induction motors,Ē IEEE Transactions onV. Climente-Alarcon, ďInduction motor diagnosis based on a

  13. Health Monitoring of Drive Connected Three-Phase Induction Motors ----- From Wired Towards Wireless Sensor Networks

    E-Print Network [OSTI]

    Xue, Xin

    2009-01-01

    bars in operating induction motors," Energy Conversion, IEEEbe set up between several motors in a large facility. Multi-for in-service induction motors," Industry Applications,

  14. Intake fraction of primary pollutants: motor vehicle emissions in the South Coast Air Basin

    E-Print Network [OSTI]

    Marshall, J D; Riley, W J; McKone, T E; Nazaroff, William W

    2003-01-01

    gasoline on motor vehicle emissions: 2. volatile organicgasoline on motor vehicle emissions: 1. mass emission rates.Exposure to Motor Vehicle Emissions: An Intake Fraction

  15. California Motor Vehicle Standards and Federalism: Lessons for the European Union

    E-Print Network [OSTI]

    Carlson, Ann E.

    2008-01-01

    to Reduce Motor Vehicle Emissions in Major Metropolitanin establishing motor vehicle emissions controls. The stateprocess in setting motor vehicle emissions standards has led

  16. Cooperative molecular motors moving back and forth

    E-Print Network [OSTI]

    David Gillo; Barak Gur; Anne Bernheim-Groswasser; Oded Farago

    2009-08-05

    We use a two-state ratchet model to study the cooperative bidirectional motion of molecular motors on cytoskeletal tracks with randomly alternating polarities. Our model is based on a previously proposed model [Badoual et al., {\\em Proc. Natl. Acad. Sci. USA} {\\bf 99}, 6696 (2002)] for collective motor dynamics and, in addition, takes into account the cooperativity effect arising from the elastic tension that develops in the cytoskeletal track due to the joint action of the walking motors. We show, both computationally and analytically, that this additional cooperativity effect leads to a dramatic reduction in the characteristic reversal time of the bidirectional motion, especially in systems with a large number of motors. We also find that bidirectional motion takes place only on (almost) a-polar tracks, while on even slightly polar tracks the motion is unidirectional. We argue that the origin of these observations is the sensitive dependence of the cooperative dynamics on the difference between the number of motors typically working in and against the instantaneous direction of motion.

  17. Motor function in interpolar microtubules during metaphase

    E-Print Network [OSTI]

    J. M. Deutsch; Ian P. Lewis

    2013-07-22

    We analyze experimental observations of microtubules undergoing small fluctuations about a "balance point" when mixed in solution of two different kinesin motor proteins, KLP61F and Ncd. It has been proposed that the microtubule movement is due to stochastic variations in the densities of the two species of motor proteins. We test this hypothesis here by showing how it maps onto a one-dimensional random walk in a random environment. Our estimate of the amplitude of the fluctuations agrees with experimental observations. We point out that there is an initial transient in the position of the microtubule where it will typically move of order its own length. We compare the physics of this gliding assay to a recent theory of the role of antagonistic motors on restricting interpolar microtubule sliding of a cell's mitotic spindle during prometaphase. It is concluded that randomly positioned antagonistic motors can restrict relative movement of microtubules, however they do so imperfectly. A variation in motor concentrations is also analyzed and shown to lead to greater control of spindle length.

  18. Improving Motor and Drive System Performance Ė A Sourcebook for Industry

    SciTech Connect (OSTI)

    2014-02-01

    This sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: (1) Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and drive systems. (2) Performance Opportunity Road Map: Details the key components of well-functioning motor and drive systems and opportunities for energy performance opportunities. (3) Motor System Economics: Offers recommendations on how to propose improvement projects based on corporate priorities, efficiency gains, and financial payback periods. (4) Where to Find Help: Provides a directory of organizations associated with motors and drives, as well as resources for additional information, tools, software, videos, and training opportunities.

  19. Letter report: Cold crucible melter assessment

    SciTech Connect (OSTI)

    Elliott, M.L.

    1996-03-01

    One of the activities of the PNL Vitrification Technology Development (PVTD) Project is to assist the Tank Waste Remediation Systems (TWRS) Program in determining which melter systems should be performance tested for potential implementation in the high-level waste (HLW) vitrification plant. The Richland Operations Office (RL) has recommended that the Cold Crucible Melter (CCM) be evaluated as a candidate ``next generation`` melter. As a result, the CCM System Evaluation cost account was established under the PVTD Project so that the CCM could be initially assessed on a high-priority basis. This letter report summarizes a brief initial review and assessment of the CCM. Using the recommendations made in this document, Westinghouse Hanford Company (WHC) and RL will make a decision regarding the urgency of performance testing the CCM. If the decision is favorable, a subcontract will be negotiated for performance testing of a CCM using Hanford HLW simulants in a pilot-scale facility. Because of the aggressive nature of the schedule, the CCM evaluation was not rigorous. The evaluation consisted of a literature review and interviews with proponents of the technology during a recent trip to France. This letter report summarizes the evaluation and makes recommendations regarding further work in this area.

  20. The Role of Reluctance in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-06-16

    The international research community has lately focused efforts on interior permanent magnet (IPM) motors to produce a traction motor for hybrid electric vehicles (HEV). One of the beneficial features of this technology is the additional torque produced by reluctance. The objective of this report is to analytically describe the role that reluctance plays in permanent magnet (PM) motors, to explore ways to increase reluctance torque without sacrificing the torque produced by the PMs, and to compare three IPM configurations with respect to torque, power, amount of magnet material required (cost), and percentage of reluctance torque. Results of this study will be used to determine future research directions in utilizing reluctance to obtain maximum torque and power while using a minimum amount of magnet material.

  1. 3000 Horsepower super conductive field acyclic motor

    SciTech Connect (OSTI)

    Marshall, R.

    1983-05-01

    A 3000 hp acyclic motor was assembled and tested utilizing superconducting field coils. The magnet assembly is designed as a quadrupole magnet, utilizing a multifilamentary niobium titanium superconductor. Each magnet coil is 18 inches in diameter and 10 inches long, and operates at rated current of 200 amperes, providing 5.8 tesla in the bore of the coils in the motor configuration. The average winding current density is 10,600 A/cm/sup 2/. The acyclic motor is of a drum-type design with liquid metal current collectors, and is designed to model full-scale machinery for ship propulsion applications. Laboratory test data verified the electrical and electromagnetic design to be within three percent of the calculated values.

  2. Soft-commutated direct current motor

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-07-27

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

  3. Soft-commutated direct current motor

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    1999-01-01

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

  4. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, B.P.; Sleefe, G.E.; Striker, R.P.

    1993-02-23

    A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  5. Case Studies of High Efficiency Electric Motor Applicability†

    E-Print Network [OSTI]

    Wagner, J. R.

    1985-01-01

    Much has been written about the advantages and disadvantages of high efficiency electric motors. For a given motor application it is possible to find literature that enables a plant engineer to make an informed choice between a standard efficiency...

  6. Electric Motor Maintenance & Repair for Long Term Efficiency†

    E-Print Network [OSTI]

    Brithinee, W. P.

    1997-01-01

    department, for example) may use microprocessor-based devices (for logic control); power electronics (for motor speed control); and specially-built electric motors. These devices may require different maintenance procedures than the equipment used in the past...

  7. Transport by molecular motors in the presence of static defects

    E-Print Network [OSTI]

    Yan Chai; Reinhard Lipowsky; Stefan Klumpp

    2009-05-07

    The transport by molecular motors along cytoskeletal filaments is studied theoretically in the presence of static defects. The movements of single motors are described as biased random walks along the filament as well as binding to and unbinding from the filament. Three basic types of defects are distinguished, which differ from normal filament sites only in one of the motors' transition probabilities. Both stepping defects with a reduced probability for forward steps and unbinding defects with an increased probability for motor unbinding strongly reduce the velocities and the run lengths of the motors with increasing defect density. For transport by single motors, binding defects with a reduced probability for motor binding have a relatively small effect on the transport properties. For cargo transport by motors teams, binding defects also change the effective unbinding rate of the cargo particles and are expected to have a stronger effect.

  8. New Energy Efficiency Standards for Electric Motors and Walk...

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

    Motors and Walk-in Coolers and Freezers to Save on Energy Bills and Reduce Carbon Pollution New Energy Efficiency Standards for Electric Motors and Walk-in Coolers and Freezers...

  9. HMAX ģ:Active Energy Control for Electric Motors | Department...

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

    :Active Energy Control for Electric Motors Real-Time Sensing and Control of Electric Motor Operation Optimizes Energy Efficiency In 2011, the U.S. industrial sector consumed 3.7...

  10. 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...

  11. Modeling and characterization of a voice coil motor

    E-Print Network [OSTI]

    Brown, Ashley (Ashley A.)

    2012-01-01

    This thesis describes the development of a voice-coil motor that will allow viscous fluids to be delivered via a portable needle-free injection device. The chosen motor design features opposing magnets whose flux is channeled ...

  12. Collective alignment of polar filaments by molecular motors.

    SciTech Connect (OSTI)

    Ziebert, F.; Aranson, I. S.; Vershinin, M.; Gross, S. P.; Materials Science Division; Univ. of California at Irvine

    2009-04-01

    We study the alignment of polar biofilaments, such as microtubules and actin, subject to the action of multiple molecular motors attached simultaneously to more than one filament. Focusing on a paradigm model of only two filaments interacting with multiple motors, we were able to investigate in detail the alignment dynamics. While almost no alignment occurs in the case of a single motor, the filaments become rapidly aligned due to the collective action of the motors. Our analysis shows that the alignment time is governed by the number of bound motors and the magnitude of the motors stepping fluctuations. We predict that the time scale of alignment is in the order of seconds, much faster than that reported for passive crosslink-induced bundling. In vitro experiments on the alignment of microtubules by multiple-motor covered beads are in qualitative agreement. We also discuss another mode of fast alignment of filaments, namely the cooperation between motors and passive crosslinks.

  13. Overview: Advanced Power Electronics and Electric Motors (APEEM...

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

    Overview: Advanced Power Electronics and Electric Motors (APEEM) R&D Overview: Advanced Power Electronics and Electric Motors (APEEM) R&D Presentation from the U.S. DOE Office of...

  14. 9.373 Somatosensory and Motor Systems, Spring 2002

    E-Print Network [OSTI]

    Bizzi, Emilio

    General principles of motor control in biological systems. Structure and function of sensory receptors. Muscle structure and reflex arcs. Spinal cord. Locomotion. Oculomotor control. Cerebellar structure and function. Motor ...

  15. Congestion Pricing and Motor Vehicle Emissions: An Initial Review

    E-Print Network [OSTI]

    Guensler, Randall; Sperling, Daniel

    1994-01-01

    CRC-APRAC On Road Vehicle Emissions Workshop. CoordinatingCoast On-Road Motor Vehicle Emission Inventory Process.W.R. Pierson. 1991. Motor Vehicle Emissions Modeling Issues.

  16. An Examination of Motor Skills in Children who Stutter†

    E-Print Network [OSTI]

    2012-10-19

    Recently, research has postulated that stuttering is a motor disorder that results from brain abnormalities within the central nervous system. Based on evidence of numerous irregularities within various motor systems, it ...

  17. Modeling Reluctance-Assisted PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2006-01-13

    This report contains a derivation of the fundamental equations used to calculate the base speed, torque delivery, and power output of a reluctance-assisted PM motor which has a saliency ratio greater than 1 as a function of its terminal voltage, current, voltage-phase angle, and current-phase angle. The equations are applied to model Motor X using symbolically-oriented methods with the computer tool Mathematica to determine: (1) the values of current-phase angle and voltage-phase angle that are uniquely determined once a base speed has been selected; (2) the attainable current in the voltage-limited region above base speed as a function of terminal voltage, speed, and current-phase angle; (3) the attainable current in the voltage-limited region above base speed as a function of terminal voltage, speed, and voltage-phase angle; (4) the maximum-power output in the voltage-limited region above base speed as a function of speed; (5) the optimal voltage-phase angle in the voltage-limited region above base speed required to obtain maximum-power output; (6) the maximum-power speed curve which was linear from rest to base speed in the current limited region below base speed; (7) the current angle as a function of saliency ratio in the current-limited region below base speed; and (8) the torque as a function of saliency ratio which is almost linear in the current-limited region below base speed. The equations were applied to model Motor X using numerically-oriented methods with the computer tool LabVIEW. The equations were solved iteratively to find optimal current and voltage angles that yield maximum power and maximum efficiency from rest through the current-limited region to base speed and then through the voltage-limited region to high-rotational speeds. Currents, voltages, and reluctance factors were all calculated and external loops were employed to perform additional optimization with respect to PM pitch angle (magnet fraction) and with respect to magnet strength. The conclusion was that the optimal-magnet fraction for Motor X is 0.72 which corresponds to a PM pitch angle of 130{sup o}, a value close to the maximum-saliency ratio in a plot of saliency ratio versus PM pitch angle. Further, the strength of Motor X magnets may be lowered to 80% of full strength without significantly impacting motor performance for PM pitch angles between the peak saliency (130{sup o}) and peak-characteristic current (160{sup o}). It is recommended that future research involve maximizing a driving-cycle-weighted efficiency based on the Federal Urban Driving Cycle and the Federal Highway Driving Cycle as criteria for selecting the final optimal-PM fraction and magnet strength for this inset PM motor. Results of this study indicate that the reduction in PM torque due to reduced-magnet fraction will be more than compensated by the reluctance torque resulting from the higher saliency ratio. It seems likely that the best overall performance will require saliency; consequently, we think the best motor will be a reluctance-assisted PM motor. This should be explored for use with other types of PM motors, such as fractional-slot motors with concentrated windings.

  18. NEMA Lighting, CCE Overview and Update presentation, dated 05...

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

    Lighting, CCE Overview and Update, date - May 25, 2011. nemalightingpresentaion.pdf More Documents & Publications Energy Conservation Program for Consumer Products and...

  19. Microsoft Word - Regulatory Burden RFI NEMA Comments regarding...

    Energy Savers [EERE]

    Electrical Manufacturers Association 1300 North 17th Street, Suite 900 - Rosslyn, VA 22209 November 28, 2 July 17, 2015 VIA EMAIL TO: Regulatory.Review@hq.doe.gov Mr. Aaron...

  20. NEMA Comments on Reducing Regulatory Burden | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergy Managing SwimmingMicrosoft The basics of

  1. NEMA Distribution Transformers, CCE Overview and Update presentation, dated

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergy Managing SwimmingMicrosoft The basics of05/24/2011 | Department of

  2. QER - Comment of NEMA 2 | 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 RankADVANCED MANUFACTURINGEnergy BillsNo. 195 - Oct. 7, 2011 |1 DOE Hydrogen andMay 2012Katy Eiseman 1

  3. National Electrical Manufacturers Association (NEMA) Response to Smart Grid

    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 DeliciousMathematicsEnergyInterested Parties -Department ofDepartment of Energy San DiegoEXECUTIVEWesternRFI |

  4. Assessing the Energy Efficiency Potential of Industrial Motor Systems

    E-Print Network [OSTI]

    McKane, Aimee

    2014-01-01

    variable speed drive Replace pump with more energy efficient type Replace motor with more energy efficient type Initiate predictive maintenance

  5. Motor Packaging with Consideration of Electromagnetic and Material...

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

    Documents & Publications Motor Packaging with Consideration of Electromagnetic and Material Characteristics Alnico and Ferrite Hybrid Excitation Electric Machines Wireless Charging...

  6. High Temperature, Buried Permanent Magnet, Brushless DC Motor

    E-Print Network [OSTI]

    Zhang, Zhengxin

    2010-10-12

    Outputs, Back EMF and Phase Current in One Electric Cycle ................ 31 Fig. 3-9 Hall Effect Sensor Positions ............................................................................. 33 Fig. 3-10 State One... 1- HIGH LEVEL HALL SENSOR INPUT 0- LOW LEVEL HALL SENSOR INPUT H- HIGH OR SWITCHING MOTOR OUTPUT L- LOW MOTOR OUTPUT X- MOTOR OUTPUT IS OFF (FLOATING) In one electrical cycle, the Hall Effect sensor outputs, Back EMF, Motor Phase inputs have a...

  7. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    1999-01-01

    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.

  8. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-03-23

    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.

  9. Enforcement Letter, NEL-2013-02 - February 12, 2013 | Department...

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

    NEL-2013-02 - February 12, 2013 Enforcement Letter, NEL-2013-02 - February 12, 2013 February 12, 2013 Issued to Los Alamos National Security, LLC related to a Radiological...

  10. 4 December 1998 Z .Chemical Physics Letters 297 1998 357364

    E-Print Network [OSTI]

    Tretiak, Sergei

    4 December 1998 Z .Chemical Physics Letters 297 1998 357≠364 R eal-Space Analysis of Electronic's biosphere harvests the sunlight energy. The primary pigments of photosynthesis are porphyrins [1]. Because

  11. Enforcement Letter, Lockheed Martin Energy Systems, Inc. - September...

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

    to Lockheed Martin Energy Systems, Inc. related to the improper transfer of mixed waste ash from K-25 to a landfill at Y-12 for disposal. Enforcement Letter, Lockheed Martin...

  12. Parallel Processing Letters fc World Scientific Publishing Company

    E-Print Network [OSTI]

    Mavronicolas, Marios

    Parallel Processing Letters fc World Scientific Publishing Company THE PRICE OF ANARCHY of Computer Science, Electrical Engineering and Mathematics, University of Paderborn, D-33102 Paderborn, Germany ß Department of Computer Science, University of Cyprus, Nicosia CY-1678, Cyprus Received (received

  13. GEOPHYSICAL RESEARCH LETTERS Supporting Information for "Eddy-mediated

    E-Print Network [OSTI]

    Stewart, Andrew

    GEOPHYSICAL RESEARCH LETTERS Supporting Information for "Eddy-mediated transport of warm, and over- turning circulation. 1 Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, Los Angeles, California, USA. 2 Environmental Sciences and Engineering, California

  14. Mechanochemistry of a Viral DNA Packaging Motor , Jeffrey Moffitt1

    E-Print Network [OSTI]

    Oster, George

    Mechanochemistry of a Viral DNA Packaging Motor Jin Yu1 , Jeffrey Moffitt1 , Craig L. Hetherington1 The pentameric ATPase motor gp16 packages double-stranded DNA into the bacteriophage 29 virus capsid to explain how the packaging motor translocates the DNA in bursts of four 2.5 bp power strokes, while

  15. Renting Vehicles Renting Vehicles from MSU Motor Pool

    E-Print Network [OSTI]

    Lawrence, Rick L.

    Renting Vehicles Renting Vehicles from MSU Motor Pool Motor Pool/Transportation Services Motor Pool vehicles may ONLY be used for club-related travel). 2) Valid U.S. driver's license in good standing; 3) Completed Vehicle Use Authorization form for all drivers; and 4) Personal medical insurance

  16. VIRTUAL E-MOTOR AS A TOOL FOR THE DEVELOPMENT

    E-Print Network [OSTI]

    Noť, Reinhold

    VIRTUAL E-MOTOR AS A TOOL FOR THE DEVELOPMENT OF POWERTRAIN CONTROLLERS The introduction of electric motors in powertrains provides many possibilities to influence the vehicle driveability using the inverter. The high dynamic response of electric motors can be put to use for the compensation of powertrain

  17. Motor signs predict poor outcomes in Alzheimer disease

    E-Print Network [OSTI]

    CME Motor signs predict poor outcomes in Alzheimer disease N. Scarmeas, MD; M. Albert, PhD; J--Objective: To examine whether the presence of motor signs has predictive value for important outcomes in Alzheimer months for a total of 3,149 visit-assessments, average 5.9 per patient), the presence of motor signs

  18. Tunable-focus liquid lens controlled using a servo motor

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Tunable-focus liquid lens controlled using a servo motor Hongwen Ren, David Fox, P. Andrew Anderson be controlled by a servo motor. The lens cell is composed of elastic membrane, planar glass plate, a periphery by an exterior rubber membrane. The arm of a servo motor is used to deform the elastic rubber. Squeezing

  19. MOTOR SCHEMAS IN ROBOT LEARNING Lynne E. Parker

    E-Print Network [OSTI]

    Parker, Lynne E.

    MOTOR SCHEMAS IN ROBOT LEARNING Lynne E. Parker Department of Electrical Engineering and Computer in robot learning; Macro actions in robot learning; Basis behaviors for robot learning. Definition Motor, or a task. Motor schemas in robot learning are also known as movement primitives, basis behaviors, units

  20. MOTOR VEHICLE POLICY University Policy No: AD2315

    E-Print Network [OSTI]

    Victoria, University of

    1 MOTOR VEHICLE POLICY University Policy No: AD2315 Classification: Administration Approving is to provide for the economic acquisition, maintenance, replacement and operation of motor Vehicles used for University Business. DEFINITIONS For the purposes of this policy: 2.00 Hybrid means a self propelled motor

  1. Motor primitives in vertebrates and invertebrates Tamar Flash1

    E-Print Network [OSTI]

    Hochner, Binyamin

    Motor primitives in vertebrates and invertebrates Tamar Flash1 and Binyamin Hochner2 In recent years different lines of evidence have led to the idea that motor actions and movements in both vertebrates and invertebrates are composed of elementary building blocks. The entire motor repertoire can

  2. Molecular motors interacting with their own tracks Max N. Artyomov

    E-Print Network [OSTI]

    Molecular motors interacting with their own tracks Max N. Artyomov Department of Chemistry; published 17 April 2008 Dynamics of molecular motors that move along linear lattices and interact with them exactly solvable discrete-state "burnt- bridge" models. Molecular motors are viewed as diffusing particles

  3. Interactions of semiflexible filaments and molecular motors Dmitry Karpeev,1

    E-Print Network [OSTI]

    Tsimring, Lev S.

    Interactions of semiflexible filaments and molecular motors Dmitry Karpeev,1 Igor S. Aranson,2 Lev by a molecular motor. The filaments are modeled as flexible rods, and the results are applicable to microtubules-scale structures in multifilament systems. Simulations for soft filaments show that the action of the motor can

  4. Efficiency of Brownian motors in terms of entropy production rate

    E-Print Network [OSTI]

    Feng, Jianfeng

    OFFPRINT Efficiency of Brownian motors in terms of entropy production rate Min Qian, Xuejuan Zhang) 10014 www.epljournal.org doi: 10.1209/0295-5075/84/10014 Efficiency of Brownian motors in terms a novel approach to the investigation of the efficiency of Brownian motors in the framework

  5. Bifurcation and control of chaos in Induction motor drives

    E-Print Network [OSTI]

    Krishnendu Chakrabarty; Urmila Kar

    2014-10-24

    The induction motor controlled by Indirect Field Oriented Control (IFOC) is known to have high performance and better stability. This paper reports the dynamical behavior of an indirect field oriented control (IFOC) induction motor drive in the light of bifurcation theory. The speed of high performance induction motor drive is controlled by IFOC method. The knowledge of qualitative change of the behavior of the motor such as equilibrium points, limit cycles and chaos with the change of motor parameters and load torque are essential for proper control of the motor. This paper provides a numerical approach to understand better the dynamical behavior of an indirect field oriented control of a current-fed induction motor. The focus is on bifurcation analysis of the IFOC motor, with a particular emphasis on the change that affects the dynamics and stability under small variations of Proportional Integral controller (PI) parameters, load torque and k, the ratio of the rotor time constant and its estimate etc. Bifurcation diagrams are computed. This paper also attempts to discuss various types of the transition to chaos in the induction motor. The results of the obtained bifurcation simulations give useful guidelines for adjusting both motor model and PI controller parameters. It is also important to ensure desired operation of the motor when the motor shows chaotic behavior. Infinite numbers of unstable periodic orbits are embedded in a chaotic attractor. Any unstable periodic orbit can be stabilized by proper control algorithm. The delayed feedback control method to control chaos has been implemented in this system.

  6. Enhancing the stability of kinesin motors for microscale transport applications{

    E-Print Network [OSTI]

    Hancock, William O.

    Enhancing the stability of kinesin motors for microscale transport applications{ Maruti Uppalapati714989a Biomolecular motors, such as kinesins, have great potential for micro-actuation and micro life of these motor proteins and their associated protein filaments is a barrier

  7. Molecular Motors DOI: 10.1002/anie.201006946

    E-Print Network [OSTI]

    Leigh, David A.

    Molecular Motors DOI: 10.1002/anie.201006946 Synthetic Molecular Bipeds** Emilio M. Pōrez* dynamic covalent chemistry ∑ macrocycles ∑ molecular devices ∑ molecular motors ∑ photo- chemistry unawareness of Aus- tralian fauna, led Plato to famously define humans as "featherless bipeds".[1] Among motor

  8. Induction motor modeling in stability simulation: Final report

    SciTech Connect (OSTI)

    Carlson, D.L.; Fedora, C.M.

    1988-12-01

    The objective of this project is to help utilities choose models of large motor loads when simulating electric system transient stability behavior during severe contingencies. Various motor models were evaluated through comparisons between simulations and field recordings obtained in this project. Guidelines are developed to assist engineers in applying typically available data describing large motors. 10 refs., 35 figs.

  9. Reducing current reversal time in electric motor control

    DOE Patents [OSTI]

    Bredemann, Michael V

    2014-11-04

    The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

  10. Working With Your Motor Service Center†

    E-Print Network [OSTI]

    Yung, C.

    2002-01-01

    center is important to ensure that the end user gets the level of quality desired without paying too much for unnecessary features. The amount of testing and documentation required by the motor end user varies widely by industry. Additional testing takes...

  11. Winter Motor-Vehicle EMISSIONS in

    E-Print Network [OSTI]

    Denver, University of

    Winter Motor-Vehicle EMISSIONS in Yellowstone National Park A ir-pollution emissions from off- road recreational vehicles have ris- en in national importance, even as emissions from these vehicles have declined of lawsuits, a new study shows that reductions in snowmobile emissions highlight the need for the snowcoach

  12. On-Road Motor Vehicle Emissions Measurements

    E-Print Network [OSTI]

    Denver, University of

    On-Road Motor Vehicle Emissions Measurements Worldwide -------- www.feat.biochem.du.edu Sajal S but ... Measured grams pollutant per kg of fuel from RSD -quantifiable uncertainty Fuel sales from tax department(tons/day) RSD IM MOBILE5b #12;Implications ∑ RSD method ideal for realistic on-road mobile source emissions

  13. Physical context management for a motor vehicle

    DOE Patents [OSTI]

    Dixon, Kevin R. (Albuquerque, NM); Forsythe, James C. (Sandia Park, NM); Lippitt, Carl E. (Albuquerque, NM); Lippitt, legal representative, Lois Diane (Albuquerque, NM)

    2009-10-27

    Computer software for and a method of enhancing safety for an operator of a motor vehicle comprising employing a plurality of sensors of vehicle and operator conditions, matching collective output from the sensors against a plurality of known dangerous conditions, and preventing certain activity of the operator if a known dangerous condition is detected.

  14. Minimize Adverse Motor and Adjustable Speed Drive Interactions - Motor Tip Sheet #15

    SciTech Connect (OSTI)

    2008-07-01

    Electronic adjustable speed drives (ASDs) are an extremely efficient and valuable asset to motor systems. They allow precise process control and provide energy savings within systems that do not need to continuously operate at full output.

  15. 11 February 1999 Z .Physics Letters B 447 1999 240245

    E-Print Network [OSTI]

    11 February 1999 Z .Physics Letters B 447 1999 240≠245 0 Search for the decay K TMp nnL KTe@fnal.gov 0370-2693r99r$ - see front matter q 1999 Published by Elsevier Science B.V. All rights reserved. Z .PII: S0370-2693 98 01593-7 #12;( )J. Adams et al.rPhysics Letters B 447 1999 240≠245 241 j Rutgers Uni

  16. Simple cost model for EV traction motors

    SciTech Connect (OSTI)

    Cuenca, R.M.

    1995-02-01

    A simple cost model has been developed that allows the calculation of the OEM cost of electric traction motors of three different types, normalized as a function of power in order to accommodate different power and size. The model includes enough information on the various elements integrated in the motors to allow analysis of individual components and to factor-in the effects of changes in commodities prices. A scalable cost model for each of the main components of an electric vehicle (EV) is a useful tool that can have direct application in computer simulation or in parametric studies. For the cost model to have wide usefulness, it needs to be valid for a range of values of some parameter that determines the magnitude or size of the component. For instance, in the case of batteries, size may be determined by energy capacity, usually expressed in kilowatt-hours (kWh), while in the case of traction motors, size is better determined by rated power, usually expressed in kilowatts (kW). The simplest case is when the cost of the component in question is a direct function of its size; then cost is simply the product of its specific cost ($/unit size) and the number of units (size) in the vehicle in question. Batteries usually fall in this category (cost = energy capacity x $/kWh). But cost is not always linear with size or magnitude; motors (and controllers), for instance, become relatively less expensive as power rating increases. Traction motors, one of the main components for EV powertrains are examined in this paper, and a simplified cost model is developed for the three most popular design variations.

  17. Motor Patterns and Kinematics During Backward Walking in the Pacific Giant Salamander: Evidence for Novel Motor Output

    E-Print Network [OSTI]

    Lauder, George V.

    Motor Patterns and Kinematics During Backward Walking in the Pacific Giant Salamander: Evidence for Novel Motor Output MIRIAM A. ASHLEY-ROSS AND GEORGE V. LAUDER Department of Ecology and Evolutionary-Ross, Miriam A. and George V. Lauder. Motor patterns and that the basic pattern of forward locomotion may

  18. Traffic of cytoskeletal motors with disordered attachment rates

    E-Print Network [OSTI]

    H. Grzeschik; R. J. Harris; L. Santen

    2010-02-19

    Motivated by experimental results on the interplay between molecular motors and tau proteins, we extend lattice-based models of intracellular transport to include a second species of particle which locally influences the motor-filament attachment rate. We consider various exactly solvable limits of a stochastic multi-particle model before focusing on the low-motor-density regime. Here, an approximate treatment based on the random walk behaviour of single motors gives good quantitative agreement with simulation results for the tau-dependence of the motor current. Finally, we discuss the possible physiological implications of our results.

  19. Efficient, High-Torque Electric Vehicle Motor: Advanced Electric Vehicle Motors with Low or No Rare Earth Content

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: QM Power will develop a new type of electric motor with the potential to efficiently power future generations of EVs without the use of rare-earth-based magnets. Many of todayís EV motors use rare earth magnets to efficiently provide torque to the wheels. QM Powerís motors would contain magnets that use no rare earth minerals, are light and compact, and can deliver more power with greater efficiency and at reduced cost. Key innovations in this project include a new motor design with iron-based magnetic materials, a new motor control technique, and advanced manufacturing techniques that substantially reduce the cost of the motor. The ultimate goal of this project is to create a cost-effective EV motor that offers the rough peak equivalent of 270 horsepower.

  20. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, Herbert S. (Asheville, NC)

    1984-01-01

    A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level.

  1. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-07-31

    A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level. 6 figs.

  2. 12. USE OF MOTOR VEHICLES ON THE UNIVERSITY SITE 12.1 No motor vehicle may be driven or parked within the University grounds unless it is

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    12. USE OF MOTOR VEHICLES ON THE UNIVERSITY SITE 12.1 No motor vehicle may be driven or parked campus may not park motor vehicles on University property, unless granted a permit, or on public roads

  3. Discussion of Induction Motor Effect on Rotordynamics†

    E-Print Network [OSTI]

    Han, Xu 1986-

    2015-05-13

    air gap flux density on the system natural frequency. Also jumping phenomenon was observed in the whirling amplitude-frequency relationship for forced vibration. The influence of radial eccentric force on hydropower generator was studied in [36... significantly. In [37], the authors further extended the hydropower generator model with importing the radial and tangential eccentric forces under whirling condition. Bifurcation was observed besides jumping phenomenon in [36]. Since the motor eccentric...

  4. Training: Motor Systems | 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 RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitleJuly 2012 TrainingMechanicalMotor

  5. POLICY FLASH 2015-31 - Acquisition Letter No. AL 2015-07, Performance...

    Office of Environmental Management (EM)

    1 - Acquisition Letter No. AL 2015-07, Performance of Inherently Governmental and Critical Functions POLICY FLASH 2015-31 - Acquisition Letter No. AL 2015-07, Performance of...

  6. Policy Flash 2015-05 - Acquisition Letter 2015-02 - Revision...

    Office of Environmental Management (EM)

    5 - Acquisition Letter 2015-02 - Revision of DOE O 350.1 and Special H Clause Policy Flash 2015-05 - Acquisition Letter 2015-02 - Revision of DOE O 350.1 and Special H Clause DATE:...

  7. 2014-02 Acquistion Letter 2014-01: Management and Operating Contractor...

    Energy Savers [EERE]

    2014-02 Acquistion Letter 2014-01: Management and Operating Contractors' Audit Coverage of Cost-Reimbursement Subcontracts 2014-02 Acquistion Letter 2014-01: Management and...

  8. Microsoft Word - AL 2010-07 Acquistion Letters Remaining in Effect...

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

    2010-07 Acquistion Letters Remaining in Effect May 2010 revision 1 June 2010 Microsoft Word - AL 2010-07 Acquistion Letters Remaining in Effect May 2010 revision 1 June 2010...

  9. Fluctuations, Responses and Energetics of Molecular Motors

    E-Print Network [OSTI]

    Takahiro Harada; Shin-ichi Sasa

    2006-10-27

    A novel equality relating the rate of energy dissipation to a degree of violation of the fluctuation-response relation (FRR) in nonequilibrium Langevin systems is described. The FRR is a relation between the correlation function of the fluctuations and the response function of macroscopic variables. Although it has been established that the FRR holds in equilibrium, physical significance of violation of the FRR in nonequilibrium systems has been under debate. Recently, the authors have found that an extent of the FRR violation is related in a simple equality to the rate of energy dissipation into the environment in nonequilibrium Langevin systems. In this paper, we fully explain the FRR, the FRR violation, and the new equality with regard to a Langevin model termed a Brownian motor model, which is considered as a simple model of a biological molecular motor. Furthermore, applications of our result to experimental studies of molecular motors are discussed, and, as an illustration, we predict the value of a new time constant regarding the motion of a KIF1A, which is a kind of single-headed kinesin.

  10. Variable current speed controller for eddy current motors

    DOE Patents [OSTI]

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

    1982-03-12

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

  11. Transport of organelles by elastically coupled motor proteins

    E-Print Network [OSTI]

    Deepak Bhat; Manoj Gopalakrishnan

    2014-12-17

    Motor-driven intracellular transport is a complex phenomenon where multiple motor proteins attached to a cargo are simultaneously engaged in pulling activity, often leading to tug-of-war and bidirectional motion. However, most mathematical and computational models ignore the details of the motor-cargo interaction. A few papers have studied more realistic models of cargo transport by including elastic motor-cargo coupling, but either restricts the number of motors and/or uses purely phenomenological forms for energy-dependent hopping rates. Here, we study a generic Model In which N motors are elastically coupled to a cargo, which itself is subject to thermal noise in the cytoplasm and an additional external applied force. The motor-hopping rates are chosen to satisfy detailed balance with respect to the energy of stretching. The master equation is converted to a linear Fokker-Planck equation (LFPE), which yields the average positions of the cargo and motors, as well as their fluctuations and correlation functions. We apply this formalism to two specific forms of the hopping rates. Analytical results are obtained for mean cargo velocity, diffusion coefficient and the average force experienced by each motor for arbitrary N, and compared with numerical simulations. The expansion procedure also allows us to quantify load-sharing features among the cargo-bound motors. In general, we observe significant deviations between analytical predictions based on LFPE and the corresponding numerical results, which suggests a prominent role for higher order corrections.

  12. Secretary Chu Letter to 2nd US-China EE Forum

    Broader source: Energy.gov [DOE]

    English and Chinese translation of Secretary Chu's letter to participants in the 2nd US-China EE Forum.

  13. Letter to Chairman Darrell Issa from Eric Fygi, Deputy General Counsel-- July 24, 2013

    Broader source: Energy.gov [DOE]

    On July 24, 2013, Energy Department Deputy General Counsel Eric Fygi sent this letter to Chairman Darrell Issa.

  14. Method and apparatus for generating motor current spectra to enhance motor system fault detection

    DOE Patents [OSTI]

    Linehan, D.J.; Bunch, S.L.; Lyster, C.T.

    1995-10-24

    A method and circuitry are disclosed for sampling periodic amplitude modulations in a nonstationary periodic carrier wave to determine frequencies in the amplitude modulations. The method and circuit are described in terms of an improved motor current signature analysis. The method insures that the sampled data set contains an exact whole number of carrier wave cycles by defining the rate at which samples of motor current data are collected. The circuitry insures that a sampled data set containing stationary carrier waves is recreated from the analog motor current signal containing nonstationary carrier waves by conditioning the actual sampling rate to adjust with the frequency variations in the carrier wave. After the sampled data is transformed to the frequency domain via the Discrete Fourier Transform, the frequency distribution in the discrete spectra of those components due to the carrier wave and its harmonics will be minimized so that signals of interest are more easily analyzed. 29 figs.

  15. Method and apparatus for generating motor current spectra to enhance motor system fault detection

    DOE Patents [OSTI]

    Linehan, Daniel J. (Knoxville, TN); Bunch, Stanley L. (Oak Ridge, TN); Lyster, Carl T. (Knoxville, TN)

    1995-01-01

    A method and circuitry for sampling periodic amplitude modulations in a nonstationary periodic carrier wave to determine frequencies in the amplitude modulations. The method and circuit are described in terms of an improved motor current signature analysis. The method insures that the sampled data set contains an exact whole number of carrier wave cycles by defining the rate at which samples of motor current data are collected. The circuitry insures that a sampled data set containing stationary carrier waves is recreated from the analog motor current signal containing nonstationary carrier waves by conditioning the actual sampling rate to adjust with the frequency variations in the carrier wave. After the sampled data is transformed to the frequency domain via the Discrete Fourier Transform, the frequency distribution in the discrete spectra of those components due to the carrier wave and its harmonics will be minimized so that signals of interest are more easily analyzed.

  16. IEMDC - In-Line Electric Motor Driven Compressor

    SciTech Connect (OSTI)

    Michael J. Crowley

    2004-03-31

    This report covers the fifth quarter (01/01/04 to 03/31/04) of the In-Line Electric Motor Driven Compressor (IEMDC) project. Design efforts on the IEMDC continued with compressor efforts focused on performing aerodynamic analyses. These analyses were conducted using computational fluid dynamics. Compressor efforts also entailed developing mechanical designs of components through the use of solid models and working on project deliverables. Electric motor efforts focused on the design of the magnetic bearing system, motor pressure housing, and the motor-compressor interface. The mechanical evaluation of the main interface from both the perspective of the compressor manufacturer and electric motor manufacturer indicates that an acceptable design has been achieved. All mechanical and aerodynamic design efforts have resulted in considerable progress being made towards the completion of the compressor and electric motor design and towards the successful completion of the IEMDC unit.

  17. A Master equation approach to modeling an artificial protein motor

    E-Print Network [OSTI]

    Nathan J. Kuwada; Gerhard A. Blab; Heiner Linke

    2010-04-07

    Linear bio-molecular motors move unidirectionally along a track by coordinating several different processes, such as fuel (ATP) capture, hydrolysis, conformational changes, binding and unbinding from a track, and center-of-mass diffusion. A better understanding of the interdependencies between these processes, which take place over a wide range of different time scales, would help elucidate the general operational principles of molecular motors. Artificial molecular motors present a unique opportunity for such a study because motor structure and function are a priori known. Here we describe use of a Master equation approach, integrated with input from Langevin and molecular dynamics modeling, to stochastically model a molecular motor across many time scales. We apply this approach to a specific concept for an artificial protein motor, the Tumbleweed.

  18. Renewal processes and fluctuation analysis of molecular motor stepping

    E-Print Network [OSTI]

    Jaime E. Santos; Thomas Franosch; Andrea Parmeggiani; Erwin Frey

    2005-11-13

    We model the dynamics of a processive or rotary molecular motor using a renewal processes, in line with the work initiated by Svoboda, Mitra and Block. We apply a functional technique to compute different types of multiple-time correlation functions of the renewal process, which have applications to bead-assay experiments performed both with processive molecular motors, such as myosin V and kinesin, and rotary motors, such as F1-ATPase.

  19. Enhanced catalyst for conversion of syngas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, Peter K. (Yorktown Heights, NY); Rabo, Jule A. (Armonk, NY)

    1985-01-01

    Synthesis gas comprising carbon monoxide and hydrogen is converted to C.sub.5.sup.+ hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the selectivity of said conversion to motor fuel range hydrocarbons and the quality of the resulting motor fuel product. The catalyst composition employs a Fischer-Tropsch catalyst, together with a co-catalyst/support component comprising SAPO silicoaluminophosphate, non-zeolitic molecular sieve catalyst.

  20. Enhanced catalyst for conversion of syngas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, P.K.; Rabo, J.A.

    1985-12-03

    Synthesis gas comprising carbon monoxide and hydrogen is converted to C[sub 5][sup +] hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the selectivity of said conversion to motor fuel range hydrocarbons and the quality of the resulting motor fuel product. The catalyst composition employs a Fischer-Tropsch catalyst, together with a co-catalyst/support component comprising a SAPO silicoaluminophosphate, non-zeolitic molecular sieve catalyst.

  1. Enhanced conversion of syngas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, Peter K. (Yorktown Heights, NY); Rabo, Jule A. (Armonk, NY)

    1986-01-01

    Synthesis gas comprising carbon monoxide and hydrogen is converted to C.sub.5.sup.+ hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the selectivity of said conversion to motor fuel range hydrocarbons and the quality of the resulting motor fuel product. The catalyst composition employs a Fischer-Tropsch catalyst, together with a co-catalyst/support component comprising SAPO silicoaluminophosphate, non-zeolitic molecular sieve catalyst.

  2. A motor drive control system for the Lidar Polarimeter†

    E-Print Network [OSTI]

    Leung, Waiming

    1977-01-01

    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...

  3. Motor Modeling and Position Control Lab Week 3: Closed Loop Control

    E-Print Network [OSTI]

    Krovi, Venkat

    Motor Modeling and Position Control Lab Week 3: Closed Loop Control 1. Review In the first week of motor modeling lab, a mathematical model of a DC motor from first principles was derived to obtain specifically for this motor model. In the second week, a physical DC motor (Quanser SRV-02) was used for open

  4. A new model for myosin dimeric motors incorporating Brownian ratchet and powerstroke mechanisms

    E-Print Network [OSTI]

    Kawai, Ryoichi

    A new model for myosin dimeric motors incorporating Brownian ratchet and powerstroke mechanisms motor proteins in general. A single motor domain is modeled using our previous work on hybrid motors that exhibit elements of both a powerstroke and a Brownian motor mechanism. The different behavior observed

  5. Stochastic simulations of cargo transport by processive molecular motors Christian B. Korn,1

    E-Print Network [OSTI]

    Schwarz, Ulrich

    Stochastic simulations of cargo transport by processive molecular motors Christian B. Korn,1 Stefan kinesin-like processive motors. Our newly developed adhesive motor dynamics algorithm combines motors. The Langevin part includes diffusive motion, the action of the pulling motors, and hydrodynamic

  6. Design and rule base reduction of a fuzzy lter for the estimation of motor currents

    E-Print Network [OSTI]

    Simon, Dan

    ģltering to motor winding current estimation in permanent magnet synchronous motors. Motor winding current estimation of the current is needed. Motor winding currents are notoriously noisy because of electrical noiseģcation for motor winding current estimation. With the assumption that the membership functions are triangular (but

  7. Impacts of Motor Vehicle Operation on Water Quality in the United States - Clean-up Costs and Policies

    E-Print Network [OSTI]

    Nixon, Hilary; Saphores, Jean-Daniel

    2007-01-01

    groundwater pollution; motor-vehicle transportation;Non-point Source Water Pollution Motor vehicles are a majorSecond, as motor vehicle pollution is often released in tiny

  8. Assessing the Energy Efficiency Potential of Industrial Motor Systems

    E-Print Network [OSTI]

    McKane, Aimee

    2014-01-01

    Stavins, R. N. , 1994. The energy-efficiency gap: What doesit mean? Energy PolicyP. ; Bertoldi, P. , 2003. Energy-efficient motor systems in

  9. Neuromuscular modularity and behavioral correlates of motor control

    E-Print Network [OSTI]

    Overduin, Simon Alexander

    2006-01-01

    I studied organizational principles that may subserve the control and learning of forelimb movements. Among these principles, I focused on muscular coordination patterns, motor cortical excitability, and sensorimotor ...

  10. Carbonyl Emissions from Gasoline and Diesel Motor Vehicles

    E-Print Network [OSTI]

    Jakober, Chris A.

    2008-01-01

    emissions from gasoline and diesel motor vehicles. Environ.of four dilutions of diesel engine exhaust for a subchronicautomobiles and heavy-duty diesel trucks. Environ. Sci.

  11. United States Industrial Motor-Driven Systems Market Assessment...

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

    sectors. United States Industrial Motor-Driven Systems Market Assessment: Charting a Roadmap to Energy Savings for Industry (June 1998) More Documents & Publications U.S....

  12. Save Energy Now in Your Motor-Driven Systems

    SciTech Connect (OSTI)

    2006-01-01

    This DOE Industrial Technologies Program fact sheet describes how manufacturing plants can save energy and money by making energy efficiency improvements to their industrial motor-driven systems.

  13. Unusual ASD Motor Conversions in a Carpet Yarn Plant†

    E-Print Network [OSTI]

    Brown, M.; Meffert, W.

    2006-01-01

    ,000 operating hours per year yields an energy cost savings of $2,374/year. With an estimated installation cost of $7,675/motor for a VSD controller or $15,350 per two motor twister, the simple payback for this application is 6.5 years. In industrial... screw forcing polymeric material through a die is not a pump, an AC motor is generally more efficient than a DC thus there should be some amount of energy saved even if it is small. Furthermore, ASD control of synchronous motors should offer some...

  14. Next Generation Electric Machines: Megawatt Class Motors FOA Informational Webinar

    Broader source: Energy.gov [DOE]

    The Next Generation Electric Machines: Megawatt Class Motors FOA Informational Webinar†will discuss standard procedures regarding the EERE Office and FOA process.

  15. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    Information AdministrationPetroleum Marketing Annual 1998 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  16. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    Petroleum Marketing Annual 1998 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  17. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    Information AdministrationPetroleum Marketing Annual 1998 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  18. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    250 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  19. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

    Gasoline and Diesel Fuel Update (EIA)

    Information AdministrationPetroleum Marketing Annual 1999 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  20. Ameren Illinois (Electric) - Custom, HVAC and Motor Business...

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

    Water Heaters Chillers Heat Pumps Air conditioners Heat recovery Compressed air Motor VFDs Agricultural Equipment CustomOthers pending approval Other EE Tankless Water...

  1. Integration of Novel Flux Coupling Motor and Current Source Inverter...

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

    Current Source Inverters for HEVs and FCVs Vehicle Technologies Office Merit Review 2014: Wireless Charging Integration of Novel Flux Coupling Motor and Current Source Inverter...

  2. DOE Issues Notice of Proposed Rulemaking for Electric Motors...

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

    regarding energy conservation standards for certain commercial and industrial electric motors, under subpart B of Title 10 of the Code of Federal Regulations, Part 431, including a...

  3. Stochastic simulations of cargo transport by processive molecular motors

    E-Print Network [OSTI]

    Christian B. Korn; Stefan Klumpp; Reinhard Lipowsky; Ulrich S. Schwarz

    2009-12-11

    We use stochastic computer simulations to study the transport of a spherical cargo particle along a microtubule-like track on a planar substrate by several kinesin-like processive motors. Our newly developed adhesive motor dynamics algorithm combines the numerical integration of a Langevin equation for the motion of a sphere with kinetic rules for the molecular motors. The Langevin part includes diffusive motion, the action of the pulling motors, and hydrodynamic interactions between sphere and wall. The kinetic rules for the motors include binding to and unbinding from the filament as well as active motor steps. We find that the simulated mean transport length increases exponentially with the number of bound motors, in good agreement with earlier results. The number of motors in binding range to the motor track fluctuates in time with a Poissonian distribution, both for springs and cables being used as models for the linker mechanics. Cooperativity in the sense of equal load sharing only occurs for high values for viscosity and attachment time.

  4. Integration of Novel Flux Coupling Motor and Current Source Inverter...

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

    Machine without Permanent Magnets John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines and Switched Reluctance Motors to Replace Permanent Magnets in Electric Vehicles...

  5. EV Everywhere Workshop: Electric Motors and Critical Materials...

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

    EV Everywhere Workshop: Power Electronics and Thermal Management Breakout Session Report Electric Motors and Critical Materials EV Everywhere - Charge to Breakout Sessions...

  6. Motor Packaging with Consideration of Electromagnetic and Material...

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

    ape035millerp.pdf More Documents & Publications Alnico and Ferrite Hybrid Excitation Electric Machines Motor Packaging with Consideration of Electromagnetic and Material...

  7. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

    Gasoline and Diesel Fuel Update (EIA)

    Information AdministrationPetroleum Marketing Annual 2000 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) -...

  8. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    AdministrationPetroleum Marketing Annual 1998 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) -...

  9. Renewable Motor Fuel Production Capacity Under H.R.4

    Reports and Publications (EIA)

    2002-01-01

    This paper analyzes renewable motor fuel production capacity with the assumption that ethanol will be used to meet the renewable fuels standard.

  10. The rebuilding and repairing of electric motors and generators

    E-Print Network [OSTI]

    Ridenour, Roy Everett

    1918-01-01

    Motor After Coils had been Put Back in Place In the repairing and rebuilding of electric motors and generators there are three principal factors which must be considered. These factors are, service, cost and reliability. If a machine can easily... motor. This motor had been through a fire in a Cripple Creek mine. The insulation had been burned from the coils except in the slots where mica had been used. The solder was*melted from the rotor and the babbitt from the bearings. Water had been...

  11. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    of table. 134 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per...

  12. Trexa Motor Corporation TMC | 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| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergyTrail CanyonsourceRiver Solar |Trexa Motor Corporation

  13. Electric machine for hybrid motor vehicle

    DOE Patents [OSTI]

    Hsu, John Sheungchun (Oak Ridge, TN)

    2007-09-18

    A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator, a permanent magnet rotor, an uncluttered rotor spaced from the permanent magnet rotor, and at least one secondary core assembly. The power system also has a gearing arrangement for coupling the internal combustion engine to wheels on the vehicle thereby providing a means for the electric machine to both power assist and brake in relation to the output of the internal combustion engine.

  14. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, Bruce P. (Sandoval County, NM); Sleefe, Gerard E. (Bernalillo County, NM); Striker, Richard P. (Bernalillo County, NM)

    1993-01-01

    A borehole seismic tool including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric meter in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  15. Honda Motor Co Ltd | 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 QA:QAsource History View NewTexas: Energy Resources JumpNew Jersey: EnergyHollyHomaHometown, Illinois:EngineeringMotor

  16. MotorMaster+ Tool | 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:Financing Tool Fits the BillDepartmentSites KDF Social Media ÔāßEnergy | Department ofMotorMaster+

  17. Motor Wave Group | 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 QA:QAsource History ViewMayo, Maryland: EnergyInformation MontanaOhio:Hill,Morrisville, NewMoshanirMotorWave Group

  18. Magnet Motor Corp | 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 QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5 <Kentucky:York: EnergyMagnet Motor Corp Jump to:

  19. List of Motors Incentives | 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 QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressed airGeothermalList ofList of Motor

  20. Coupling of Two Motor Proteins: A New Motor Can Move Faster Evgeny B. Stukalin, Hubert Phillips III, and Anatoly B. Kolomeisky

    E-Print Network [OSTI]

    Coupling of Two Motor Proteins: A New Motor Can Move Faster Evgeny B. Stukalin, Hubert Phillips III February 2005; published 13 June 2005) We study the effect of a coupling between two motor domains in highly processive motor protein complexes. A simple stochastic discrete model, in which the two parts

  1. A. MOTOR POOL VEHICLE GUIDELINES The goal of Notre Dame's Motor Pool is to make available a variety of vehicles for rent

    E-Print Network [OSTI]

    Buechler, Steven

    A. MOTOR POOL VEHICLE GUIDELINES The goal of Notre Dame's Motor Pool is to make available a variety University business. When vehicle needs are sporadic, use of the Motor Pool should be a convenient of Motor Pool vehicles: 1. Authorization Current University employees, students or authorized personnel may

  2. Lab 1 -Motor Spin Down Test The angular speed ! of a motor is governed by the rst order di erential equation

    E-Print Network [OSTI]

    Stanford University

    Lab 1 - Motor Spin Down Test PRE-LAB The angular speed ! of a motor is governed by the rst order di erential equation I _! + b! = 0 where I is the moment of inertia of the motor and attachments about the motor's axis and b is the linear viscous damping constant. a. The rate of the exponential decay of !t

  3. motor proteins, which hydrolyze adenine triphosphate (ATP). In order to under-stand the underlying principles of motor-driven filament dynamics it is necessary to

    E-Print Network [OSTI]

    Kierfeld, Jan

    the underlying principles of motor-driven filament dynamics it is necessary to study simple model systems description with kinetic equations for filament density and orientation fields and a motor-density field myosin motor mini-filaments12 it has also been suggested that the effect of motor ac- tivity can

  4. Nature Macmillan Publishers Ltd 1998 letters to nature

    E-Print Network [OSTI]

    Steller, Hermann

    - rofilaments in motor neuron perikarya. For the two mouse models of neuronal disease investigated here, neither-fixed in 1% osmium tetroxide for 1 h, washed in 0.1 M phosphate buffer, and dehydrated in ethanol

  5. DNA-Based Optomechanical Molecular Motor

    SciTech Connect (OSTI)

    McCullagh, Martin; Franco, Ignacio; Ratner, Mark A.; Schatz, George C.

    2011-03-16

    An azobenzene-capped DNA hairpin coupled to an AFM is presented as an optically triggered single-molecule motor. The photoinduced trans to cis isomerization of azobenzene affects both the overall length of the molecule and the ability of the DNA bases to hybridize. Using a combination of molecular dynamics simulations and free energy calculations the unfolding of both isomers along the O5'-O3' extension coordinate is monitored. The potentials of mean force (PMFs) along this coordinate indicate that there are two major differences induced by photoisomerization. The first is that the interbase hydrogen bond and stacking interactions are stable for a greater range of extensions in the trans system than in the cis system. The second difference is due to a decreased chain length of the cis isomer with respect to the trans isomer. These differences are exploited to extract work in optomechanical cycles. The disruption of the hairpin structure gives a maximum of 3.4 kcal mol-1 of extractable work per cycle with an estimated maximum efficiency of 2.4%. Structure-function insights into the operation of this motor are provided, and the effect of the cantilever stiffness on the extractable work is characterized.

  6. The United States Industrial Electric Motor Systems Market Opportunities Assessment: Key Results†

    E-Print Network [OSTI]

    Rosenberg, M.

    1999-01-01

    presents key findings from the Market Assessment in regard to patterns of motor energy use, saturation of energy efficiency measures such as efficient motors and adjustable speed drives, and motor system purchase and maintenance practices....

  7. 2006 Special issue Perceiving the unusual: Temporal properties of hierarchical motor

    E-Print Network [OSTI]

    Demiris, Yiannis

    2006 Special issue Perceiving the unusual: Temporal properties of hierarchical motor of demonstrated actions to the observer robot's equivalent motor representations (Alissandrakis, Nehaniv visual information and retrieving motor representations, differ in the way that the perceptual

  8. Do Motor-Vehicle Users in the US Pay Their Way?

    E-Print Network [OSTI]

    Delucchi, Mark

    2007-01-01

    expenditures related to motor-vehicle use is a key factor insuch as highway patrol, for motor-vehicle users (Delucchi,fees speci?cally related to motor-vehicle use A2.1. Taxes

  9. Speech motor control variables in the production of voicing contrasts and emphatic accent†

    E-Print Network [OSTI]

    Mills, Timothy Ian Pandachuck

    2009-11-26

    This dissertation looks at motor control in speech production. Two specific questions emerging from the speech motor control literature are studied: the question of articulatory versus acoustic motor control targets, and ...

  10. A role for motor neurons in the development and function of the spinal circuitry governing locomotion

    E-Print Network [OSTI]

    Gallarda, Benjamin William

    2010-01-01

    F. (2010). A neural basis for motor primitives in the spinal2008). Segregation of axial motor and sensory pathways viaT. M. (2008). Hox repertoires for motor neuron diversity and

  11. The Cost of Crop Damage Caused by Ozone Air Pollution From Motor Vehicles

    E-Print Network [OSTI]

    Murphy, James; Delucchi, Mark; McCubbin, Donald; Kim, H.J.

    1999-01-01

    Effects of Motor-Vehicle Air Pollution. UCD-ITS-RR-96-3 (by Ozone Air Pollution from Motor-Vehicles. UCD- ITS-RR-96-by ozone air pollution from motor vehicles J. J. MurphyÜ?,

  12. The Contribution of Motor Vehicles and Other Sources to Ambient Air Pollution

    E-Print Network [OSTI]

    Delucchi, Mark A.; McCubbin, Donald R.

    1996-01-01

    general, but not to motor-vehicle pollution specifically. Wedue to all motor vehicle pollution, such as we make here,of eliminating motor-vehicle pollution. For example, the

  13. Productive Cooperation among Processive Motors Depends Inversely on Their Mechanochemical Efficiency

    E-Print Network [OSTI]

    Productive Cooperation among Processive Motors Depends Inversely on Their Mechanochemical, Texas ABSTRACT Subcellular cargos are often transported by teams of processive molecular motors, which raises questions regarding the role of motor cooperation in intracellular transport. Although our ability

  14. How Molecular Motors Are Arranged on a Cargo Is Important for Vesicular Transport

    E-Print Network [OSTI]

    Erickson, Robert P; Jia, Zhiyuan; Gross, Steven P; Yu, Clare C; Bausch, Andreas R

    2011-01-01

    transport by molecular motors with opposite polarities. Physof the cytoplasmic dynein motor. Nat Cell Biol 2: 20Ė24.of a cargo hauled by motor proteins along a microtubule. (

  15. Thinking and behaviour in motor neurone disease : a clinical neuropsychological investigation†

    E-Print Network [OSTI]

    Dunlop, Alan

    2007-01-01

    Traditionally Motor Neurone Disease (MND) has been thought of as a syndrome exclusively affecting the motor regions of the cortex only. However, recent research has found evidence of extra-motor involvement in patients ...

  16. Inhalation of primary motor vehicle emissions: Effects of urban population and land area

    E-Print Network [OSTI]

    Marshall, Julian D.; McKone, Thomas E.; Nazaroff, William W.

    2004-01-01

    and inhalation of motor vehicle emissions JD Marshall et al.pollutants: motor vehicle emissions in the South Coast AirAn on-road motor vehicle emissions inventory for Denver: an

  17. Inhalation of motor vehicle emissions: effects of urban population and land area

    E-Print Network [OSTI]

    Marshall, J D; McKone, T E; Deakin, E; Nazaroff, William W

    2005-01-01

    and inhalation of motor vehicle emissions JD Marshall et al.pollutants: motor vehicle emissions in the South Coast Airand inhalation of motor vehicle emissions JD Marshall et al.

  18. Letter Report RELATIVE BIOLOGICAL EFFECTIVENESS OF LOWENERGY ELECTRONS AND

    E-Print Network [OSTI]

    Letter Report RELATIVE BIOLOGICAL EFFECTIVENESS OF LOWENERGY ELECTRONS for electrons and photons based on the cumulative fraction of absorbed dose below 5 keV. The approach is empirical and employs Monte Carlo simulation of individual electron tracks passing through the absorbing

  19. 26 May 2000 Z .Chemical Physics Letters 322 2000 321326

    E-Print Network [OSTI]

    Liu, Jie

    26 May 2000 Z .Chemical Physics Letters 322 2000 321≠326 www.elsevier.nlrlocatercplett A scalable 2000; in final form 20 March 2000 Abstract Z .Single-walled carbon nanotubes SWNT are known to possess is greater than 200% the weight of the catalysts. q 2000 Elsevier Science B.V. All rights reserved. 1

  20. 17 March 2000 Z .Chemical Physics Letters 319 2000 247252

    E-Print Network [OSTI]

    Agmon, Noam

    17 March 2000 Z .Chemical Physics Letters 319 2000 247≠252 www.elsevier.nlrlocatercplett Mechanism, The Hebrew Uni’ersity, Jerusalem 91904, Israel Received 29 November 1999; in final form 15 January 2000, can be rationalized in the framework of the above model. q 2000 Elsevier Science B.V. All rights

  1. 21 April 2000 Z .Chemical Physics Letters 321 2000 4348

    E-Print Network [OSTI]

    Hong, Mei

    21 April 2000 Z .Chemical Physics Letters 321 2000 43≠48 www and Engineering, Uni’ersity of Massachusetts, Amherst, MA 01003, USA Received 27 January 2000; in final form 6 March 2000 Abstract A solid-state NMR exchange technique for detecting slow segmental dynamics

  2. 17 April 2000 Z .Physics Letters A 268 2000 241246

    E-Print Network [OSTI]

    D'Ariano, Giacomo Mauro

    17 April 2000 Z .Physics Letters A 268 2000 241≠246 www.elsevier.nlrlocaterphysleta Isotropic phase 23 December 1999; accepted 9 March 2000 Communicated by P.R. Holland Abstract We prove that isotropic squeezing of the phase is equivalent to reversing the arrow of time. q 2000 Published by Elsevier Science B

  3. 22 September 2000 Z .Chemical Physics Letters 328 2000 197202

    E-Print Network [OSTI]

    Ashworth, Stephen H.

    22 September 2000 Z .Chemical Physics Letters 328 2000 197≠202 www.elsevier.nlrlocatercplett Sub BS8 1TS, UK Received 4 July 2000; in final form 2 August 2000 Abstract A preliminary version with a discussion of the bonding in PF as revealed by the hyperfine constants. q 2000 Elsevier Science B.V. All

  4. 7 April 2000 Z .Chemical Physics Letters 320 2000 262268

    E-Print Network [OSTI]

    Agmon, Noam

    7 April 2000 Z .Chemical Physics Letters 320 2000 262≠268 www.elsevier.nlrlocatercplett Dual Received 6 December 1999; in final form 4 February 2000 Abstract The kinetics of excited-state proton for this diffusion-in- fluenced reaction. q 2000 Elsevier Science B.V. All rights reserved. 1. Introduction The study

  5. 12 May 2000 Z .Chemical Physics Letters 322 2000 111118

    E-Print Network [OSTI]

    Augustine, Mathew P.

    12 May 2000 Z .Chemical Physics Letters 322 2000 111≠118 www.elsevier.nlrlocatercplett Noise Departments of Chemistry and Physics, Uni’ersity of California, Berkeley, CA 94720, USA Received 14 March 2000; in final form 23 March 2000 Abstract Spontaneous radiation damping in nuclear magnetic resonance

  6. 10 April 2000 Z .Physics Letters A 268 2000 151157

    E-Print Network [OSTI]

    D'Ariano, Giacomo Mauro

    10 April 2000 Z .Physics Letters A 268 2000 151≠157 www.elsevier.nlrlocaterphysleta Universal 2000; accepted 28 February 2000 Communicated by P.R. Holland Abstract A general method is presented which apply to different physical contexts. q 2000 Elsevier Science B.V. All rights reserved. PACS: 03

  7. 14 April 2000 Z .Chemical Physics Letters 320 2000 499506

    E-Print Network [OSTI]

    Butler, Laurie J.

    14 April 2000 Z .Chemical Physics Letters 320 2000 499≠506 www.elsevier.nlrlocatercplett A combined, Albuquerque, NM 87131-1096, USA Received 12 October 1999; in final form 24 February 2000 Abstract ~ 1 Z and agree well with an earlier experiment. q 2000 Elsevier Science B.V. All rights reserved. 1. Introduction

  8. 1 September 2000 Z .Chemical Physics Letters 327 2000 6975

    E-Print Network [OSTI]

    1 September 2000 Z .Chemical Physics Letters 327 2000 69≠75 www.elsevier.nlrlocatercplett Enhanced and Astronomy, Uni’ersity of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA Received 9 May 2000; in final form 13 July 2000 Abstract Z .The effects of processing on the structure and morphology of single

  9. 17 July 2000 Z .Physics Letters A 272 2000 3238

    E-Print Network [OSTI]

    D'Ariano, Giacomo Mauro

    17 July 2000 Z .Physics Letters A 272 2000 32≠38 www.elsevier.nlrlocaterpla Bell measurements Studi di Pa’ia and INFM Unita di Pa’ia, ’ia A. Bassi 6, I-27100 Pa’ia, Italy` ` Received 27 April 2000; received in revised form 30 May 2000; accepted 12 June 2000 Communicated by P.R. Holland Abstract A general

  10. 11 August 2000 Z .Chemical Physics Letters 326 2000 110

    E-Print Network [OSTI]

    Apkarian, V. Ara

    11 August 2000 Z .Chemical Physics Letters 326 2000 1≠10 www.elsevier.nlrlocatercplett Imaging-2025, USA Received 20 April 2000; in final form 7 June 2000 The memory of Kent R. Wilson, one of whose many-frequency plane. We illustrate this for the rovibronic coherence of molecular iodine in the gas phase. q 2000

  11. 1 September 2000 Z .Chemical Physics Letters 327 2000 3844

    E-Print Network [OSTI]

    Cao, Jianshu

    1 September 2000 Z .Chemical Physics Letters 327 2000 38≠44 www.elsevier.nlrlocatercplett Event of Technology, Cambridge, MA 02139, USA Received 14 April 2000; in final form 5 July 2000 Abstract A modulated N function reveals the nature of conformational landscapes. q 2000 Elsevier Science B.V. All rights reserved

  12. 26 May 2000 Z .Chemical Physics Letters 322 2000 351357

    E-Print Network [OSTI]

    Kim, Myung Soo

    26 May 2000 Z .Chemical Physics Letters 322 2000 351≠357 www.elsevier.nlrlocatercplett Classical March 2000 Abstract Intramolecular dynamics of HOD was investigated by the classical trajectory method and mode selective chemistry is discussed. q 2000 Elsevier Science B.V. All rights reserved. 1

  13. 22 September 2000 Z .Chemical Physics Letters 328 2000 129134

    E-Print Network [OSTI]

    Lindsay, C. Michael

    22 September 2000 Z .Chemical Physics Letters 328 2000 129≠134 www 2000; in final form 29 June 2000 Abstract We have developed a method to observe the destruction rate constants. q 2000 Elsevier Science B.V. All rights reserved. 1. Introduction Hollow cathode and positive

  14. 11 September 2000 Z .Physics Letters A 274 2000 6468

    E-Print Network [OSTI]

    11 September 2000 Z .Physics Letters A 274 2000 64≠68 www.elsevier.nlrlocaterpla Effect of quantum’ersity, Department of Astrophysical Sciences, Princeton, N.J. 08540, USA Received 16 March 2000; received in revised form 21 July 2000; accepted 21 July 2000 Communicated by M. Porkolab Abstract w Z . x

  15. 4 August 2000 Z .Chemical Physics Letters 325 2000 619626

    E-Print Network [OSTI]

    Fayer, Michael D.

    4 August 2000 Z .Chemical Physics Letters 325 2000 619≠626 www, Indian Institute of Science, Bangalore-560034, India Received 7 April 2000; in final form 2 June 2000, in agreement with theoretical calculations. q 2000 Published by Elsevier Science B.V. 1. Introduction

  16. 1 September 2000 Z .Chemical Physics Letters 327 2000 2937

    E-Print Network [OSTI]

    Mukamel, Shaul

    1 September 2000 Z .Chemical Physics Letters 327 2000 29≠37 www.elsevier.nlrlocatercplett Coherent, Uni’ersity of Rochester, Rochester, NY 14627, USA Received 1 February 2000; in final form 7 June 2000. The sensitivity of the density matrix to the parameters is demonstrated. q 2000 Published by Elsevier Science B

  17. 31 March 2000 Z .Chemical Physics Letters 320 2000 186193

    E-Print Network [OSTI]

    Truong, Thanh N.

    31 March 2000 Z .Chemical Physics Letters 320 2000 186≠193 www.elsevier.nlrlocatercplett Liquid 1999; in final form 22 January 2000 Abstract Z .We calculated the structure of water in contact as a constituent of a self-consistent description of chemical processes at a metal oxide≠water interface. q 2000

  18. 7 April 2000 Z .Chemical Physics Letters 320 2000 339344

    E-Print Network [OSTI]

    Zare, Richard N.

    7 April 2000 Z .Chemical Physics Letters 320 2000 339≠344 www.elsevier.nlrlocatercplett Spatial’ersity, Stanford CA 94305, USA Received 22 February 2000 Abstract Spatial concentration and temperature profiles x w xfilament the H r H ratio is determined to be 0.011"0.003. q 2000 Elsevier Science B.V. All

  19. 30 June 2000 Z .Chemical Physics Letters 324 2000 101107

    E-Print Network [OSTI]

    Baer, Roi

    30 June 2000 Z .Chemical Physics Letters 324 2000 101≠107 www.elsevier.nlrlocatercplett Ab 2000; in final form 10 May 2000 Abstract The shifted-contour auxiliary field Monte Carlo method applied the error bars. Several theoretical and methodological issues are discussed. q 2000 Elsevier Science B

  20. 17 March 2000 Z .Chemical Physics Letters 319 2000 273277

    E-Print Network [OSTI]

    Kais, Sabre

    17 March 2000 Z .Chemical Physics Letters 319 2000 273≠277 www.elsevier.nlrlocatercplett Dataī ī ī ī ī b Department of Chemistry, Purdue Uni’ersity, West Lafayette, IN 47907, USA Received 4 January 2000; in final form 17 January 2000 Abstract We present a data-collapse study for quantum few-body problems. Our