National Library of Energy BETA

Sample records for features regenerative braking

  1. Regenerative braking device

    DOE Patents [OSTI]

    Hoppie, Lyle O. (Birmingham, MI)

    1982-01-12

    Disclosed are several embodiments of a regenerative braking device for an automotive vehicle. The device includes a plurality of rubber rollers (24, 26) mounted for rotation between an input shaft (14) connectable to the vehicle drivetrain and an output shaft (16) which is drivingly connected to the input shaft by a variable ratio transmission (20). When the transmission ratio is such that the input shaft rotates faster than the output shaft, the rubber rollers are torsionally stressed to accumulate energy, thereby slowing the vehicle. When the transmission ratio is such that the output shaft rotates faster than the input shaft, the rubber rollers are torsionally relaxed to deliver accumulated energy, thereby accelerating or driving the vehicle.

  2. Combined hydraulic and regenerative braking system

    DOE Patents [OSTI]

    Venkataperumal, Rama R. (Troy, MI); Mericle, Gerald E. (Mount Clemens, MI)

    1981-06-02

    A combined hydraulic and regenerative braking system and method for an electric vehicle, with the braking system being responsive to the applied hydraulic pressure in a brake line to control the braking of the vehicle to be completely hydraulic up to a first level of brake line pressure, to be partially hydraulic at a constant braking force and partially regenerative at a linearly increasing braking force from the first level of applied brake line pressure to a higher second level of brake line pressure, to be partially hydraulic at a linearly increasing braking force and partially regenerative at a linearly decreasing braking force from the second level of applied line pressure to a third and higher level of applied line pressure, and to be completely hydraulic at a linearly increasing braking force from the third level to all higher applied levels of line pressure.

  3. Variable ratio regenerative braking device

    DOE Patents [OSTI]

    Hoppie, Lyle O. (Birmingham, MI)

    1981-12-15

    Disclosed is a regenerative braking device (10) for an automotive vehicle. The device includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (36) and an output shaft (42), clutches (38, 46) and brakes (40, 48) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. The rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft is clutched to the transmission while the brake on the output shaft is applied, and are torsionally relaxed to deliver energy to the vehicle when the output shaft is clutched to the transmission while the brake on the input shaft is applied. The transmission ratio is varied to control the rate of energy accumulation and delivery for a given rotational speed of the vehicle drivetrain.

  4. Adaptive controller for regenerative and friction braking system

    DOE Patents [OSTI]

    Davis, Roy I. (Ypsilanti, MI)

    1990-01-01

    A regenerative and friction braking system for a vehicle having one or more roadwheels driven by an electric traction motor includes a driver responsive device for producing a brake demand signal having a magnitude corresponding to the level of braking force selected by the driver and friction and regenerative brakes operatively connected with the roadwheels of the vehicle. A system according to this invention further includes control means for operating the friction and regenerative braking subsystems so that maximum brake torques sustainable by the roadwheels of the vehicle without skidding or slipping will not be exceeded.

  5. Adaptive controller for regenerative and friction braking system

    DOE Patents [OSTI]

    Davis, R.I.

    1990-10-16

    A regenerative and friction braking system for a vehicle having one or more road wheels driven by an electric traction motor includes a driver responsive device for producing a brake demand signal having a magnitude corresponding to the level of braking force selected by the driver and friction and regenerative brakes operatively connected with the road wheels of the vehicle. A system according to this invention further includes control means for operating the friction and regenerative braking subsystems so that maximum brake torques sustainable by the road wheels of the vehicle without skidding or slipping will not be exceeded. 8 figs.

  6. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, S.R.

    1995-09-12

    An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydraulic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control. 10 figs.

  7. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, Susan R. (Wixom, MI)

    1995-01-01

    An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydrualic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control.

  8. Regenerative Braking for an Electric Vehicle Using Ultracapacitors and a Buck-Boost Converter

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    Regenerative Braking for an Electric Vehicle Using Ultracapacitors and a Buck-Boost Converter Juan situation (regenerative braking), the battery voltage goes up, and then the control needs to activate regenerative braking can be avoided #12;with the help of ultracapacitors. Besides, ultracapacitors allow

  9. Regenerative braking device with rotationally mounted energy storage means

    DOE Patents [OSTI]

    Hoppie, Lyle O. (Birmingham, MI)

    1982-03-16

    A regenerative braking device for an automotive vehicle includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (30) and an output shaft (32), clutches (50, 56) and brakes (52, 58) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. In a second embodiment the clutches and brakes are dispensed with and the variable ratio transmission is connected directly across the input and output shafts. In both embodiments the rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft rotates faster or relative to the output shaft and are torsionally relaxed to deliver energy to the vehicle when the output shaft rotates faster or relative to the input shaft.

  10. Fuzzy logic electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, S.R.

    1994-10-25

    An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control. 123 figs.

  11. Fuzzy logic electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, Susan R. (Wixom, MI)

    1994-01-01

    An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control.

  12. Regenerative braking on bicycles to power LED safety flashers

    E-Print Network [OSTI]

    Collier, Ian M

    2005-01-01

    This work develops a method for capturing some of the kinetic energy ordinarily lost during braking on bicycles to power LED safety flashers. The system is designed to eliminate: (a) battery changing in popular LED flashers, ...

  13. Hydraulic Drivetrain and Regenerative Braking Team 13: Andrew Brown, Karan Desai, Andrew McGrath, Hurst Nuckols, Grant Wilson Adviser: Dr. Andrew Jackson

    E-Print Network [OSTI]

    Carpick, Robert W.

    Hydraulic Drivetrain and Regenerative Braking Team 13: Andrew Brown, Karan Desai, Andrew Mc Pressure Reservior Filter Variable Vane Pump Motor/Pump Hydraulic Accumulators Solenoid Valve Relief Valve Suction Line Since their development in 2006, hydraulic drivetrain systems have gained considerable

  14. Brake blending strategy for a hybrid vehicle

    DOE Patents [OSTI]

    Boberg, Evan S. (Hazel Park, MI)

    2000-12-05

    A hybrid electric powertrain system is provided including a transmission for driving a pair of wheels of a vehicle and a heat engine and an electric motor/generator coupled to the transmission. A friction brake system is provided for applying a braking torque to said vehicle. A controller unit generates control signals to the electric motor/generator and the friction brake system for controllably braking the vehicle in response to a drivers brake command. The controller unit determines and amount of regenerative torque available and compares this value to a determined amount of brake torque requested for determining the control signals to the electric motor/generator and the friction brake system.

  15. Gravity brake

    DOE Patents [OSTI]

    Lujan, Richard E. (Santa Fe, NM)

    2001-01-01

    A mechanical gravity brake that prevents hoisted loads within a shaft from free-falling when a loss of hoisting force occurs. A loss of hoist lifting force may occur in a number of situations, for example if a hoist cable were to break, the brakes were to fail on a winch, or the hoist mechanism itself were to fail. Under normal hoisting conditions, the gravity brake of the invention is subject to an upward lifting force from the hoist and a downward pulling force from a suspended load. If the lifting force should suddenly cease, the loss of differential forces on the gravity brake in free-fall is translated to extend a set of brakes against the walls of the shaft to stop the free fall descent of the gravity brake and attached load.

  16. Braking system

    DOE Patents [OSTI]

    Norgren, D.U.

    1982-09-23

    A balanced braking system comprising a plurality of braking assemblies located about a member to be braked. Each of the braking assemblies consists of a spring biased piston of a first material fitted into a body of a different material which has a greater contraction upon cooling than the piston material. The piston is provided with a recessed head portion over which is positioned a diaphragm and forming a space therebetween to which is connected a pressurized fluid supply. The diaphragm is controlled by the fluid in the space to contact or withdraw from the member to be braked. A cooling means causes the body within which the piston is fitted to contract more than the piston, producing a tight shrink fit therebetween. The braking system is particularly applicable for selectively braking an arbor of an electron microscope which immobilizes, for example, a vertically adjustable low temperature specimen holder during observation. The system provides balanced braking forces which can be easily removed and re-established with minimal disturbance to arbor location.

  17. Hybrid: Braking

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center HomeVehicle Replacement VouchersBraking

  18. Research Councils UK Regenerative

    E-Print Network [OSTI]

    Crowther, Paul

    Research Councils UK Regenerative medicine #12;Regenerative medicine, the approach that seeks, is not a new discipline. Decades of RCUK-funded research has led to successes in the fields of tissue testing to make safer medicines. Success in this research field has also led to economic growth for the UK

  19. A Coordinated Train Control Algorithm to Improve Regenerative Energy Receptivity in Metro Transit Systems

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    regenerative energy receptivity and energy savings in a bi-directional metro transit network, this paper formulates a coordinated train control algorithm based on genetic algorithm techniques. The energy saving is a braking mechanism that decelerates the vehicle by converting its kinetic energy into electric energy

  20. Full Hybrid: Braking

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center HomeVehicle Replacement VouchersBraking button highlighted Stopped

  1. Regenerative feedback resonant circuit

    SciTech Connect (OSTI)

    Jones, A. Mark; Kelly, James F.; McCloy, John S.; McMakin, Douglas L.

    2014-09-02

    A regenerative feedback resonant circuit for measuring a transient response in a loop is disclosed. The circuit includes an amplifier for generating a signal in the loop. The circuit further includes a resonator having a resonant cavity and a material located within the cavity. The signal sent into the resonator produces a resonant frequency. A variation of the resonant frequency due to perturbations in electromagnetic properties of the material is measured.

  2. Brake System Modeling, Control And Integrated Brake/throttle Switching Phase I

    E-Print Network [OSTI]

    Hedrick, Karl; Et. al.,

    1997-01-01

    and vacuum chambers, the intake manifold, the secondary brake line at the master cylinder and the front brake on the same hydraulic

  3. Regenerative air heater

    DOE Patents [OSTI]

    Hasselquist, P.B.; Baldner, R.

    1980-11-26

    A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

  4. Regenerative air heater

    DOE Patents [OSTI]

    Hasselquist, Paul B. (Maple Grove, MN); Baldner, Richard (Minnetonka, MN)

    1982-01-01

    A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

  5. Investigation of a regenerative damping concept 

    E-Print Network [OSTI]

    Fodor, Michael Glenn

    1993-01-01

    This thesis presents a justification for the study of regenerative damping, a general statement of the regenerative damping problem, and a detailed analysis of a specific proposed solution to the regenerative damping problem. Improvement...

  6. Project Profile: Regenerative Carbonate-Based Thermochemical...

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

    Project Profile: Regenerative Carbonate-Based Thermochemical Energy Storage System for Concentrating Solar Power Project Profile: Regenerative Carbonate-Based Thermochemical Energy...

  7. AVCEM: Advanced Vehicle Cost and Energy Use Model. Overview of AVCEM

    E-Print Network [OSTI]

    Delucchi, Mark

    2005-01-01

    accounted separately), regenerative braking, battery thermalthere is no regenerative braking, and vehicle efficiency,iterative calculations. Regenerative braking is represented

  8. AVCEM: Advanced-Vehicle Cost and Energy Use Model

    E-Print Network [OSTI]

    Delucchi, Mark

    2005-01-01

    accounted separately), regenerative braking, battery thermalthere is no regenerative braking, and vehicle efficiency,iterative calculations. Regenerative braking is represented

  9. Simulations of Plug-in Hybrid Vehicles Using Advanced Lithium Batteries and Ultracapacitors on Various Driving Cycles

    E-Print Network [OSTI]

    Burke, Andy; Zhao, Hengbing

    2010-01-01

    capability and thus regenerative braking performancecapability and thus regenerative braking performanceaccept all the regenerative braking energy. This paper is

  10. Regenerative combustion device

    DOE Patents [OSTI]

    West, Phillip B.

    2004-03-16

    A regenerative combustion device having a combustion zone, and chemicals contained within the combustion zone, such as water, having a first equilibrium state, and a second combustible state. Means for transforming the chemicals from the first equilibrium state to the second combustible state, such as electrodes, are disposed within the chemicals. An igniter, such as a spark plug or similar device, is disposed within the combustion zone for igniting combustion of the chemicals in the second combustible state. The combustion products are contained within the combustion zone, and the chemicals are selected such that the combustion products naturally chemically revert into the chemicals in the first equilibrium state following combustion. The combustion device may thus be repeatedly reused, requiring only a brief wait after each ignition to allow the regeneration of combustible gasses within the head space.

  11. Integration and Dynamics of a Renewable Regenerative Hydrogen Fuel Cell System

    E-Print Network [OSTI]

    Victoria, University of

    Integration and Dynamics of a Renewable Regenerative Hydrogen Fuel Cell System by Alvin Peter, hydrogen and electricity storage, and fuel cells. A special design feature of this test bed is the ability of the author. #12;ii Supervisory Committee Integration and Dynamics of a Renewable Regenerative Hydrogen Fuel

  12. Brake Defect Causation and Abatement Study (BDCAS)

    E-Print Network [OSTI]

    cost with proper re- pairs being made the first time and reduction in out-of-service vehicles #12; corrective actions and validate true abatement of initial out-of- service causation the FMCSA began the BDCAS brake efficiency data as new brakes are burnished; and where possible, collect brake efficiency data

  13. 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

  14. Regenerative switching CMOS system

    DOE Patents [OSTI]

    Welch, J.D.

    1998-06-02

    Complementary Metal Oxide Semiconductor (CMOS) Schottky barrier Field Effect Transistor systems, which are a series combination of N and P-Channel MOSFETS, in which Source Schottky barrier junctions of the N and P-Channel Schottky barrier MOSFETS are electrically interconnected, (rather than the Drains as in conventional diffused junction CMOS), which Schottky barrier MOSFET system demonstrates Regenerative Inverting Switching Characteristics in use are disclosed. Both the N and P-Channel Schottky barrier MOSFET devices are unique in that they provide operational Drain Current vs. Drain to Source voltage as a function of Gate voltage only where the polarities of the Drain voltage and Gate voltage are opposite, referenced to the Source as a common terminal, and where the polarity of the voltage applied to the Gate is appropriate to cause Channel inversion. Experimentally derived results which demonstrate and verify the operation of N and P-Channel Schottky barrier MOSFETS actually fabricated on P and N-type Silicon respectively, by a common procedure using vacuum deposited Chromium as a Schottky barrier forming metal, are also provided. 14 figs.

  15. Regenerative switching CMOS system

    DOE Patents [OSTI]

    Welch, James D. (10328 Pinehurst Ave., Omaha, NE 68124)

    1998-01-01

    Complementary Metal Oxide Semiconductor (CMOS) Schottky barrier Field Effect Transistor systems, which are a seriesed combination of N and P-Channel MOSFETS, in which Source Schottky barrier junctions of the N and P-Channel Schottky barrier MOSFETS are electically interconnected, (rather than the Drains as in conventional diffused junction CMOS), which Schottky barrier MOSFET system demonstrates Regenerative Inverting Switching Characteristics in use are disclosed. Both the N and P-Channel Schottky barrier MOSFET devices are unique in that they provide operational Drain Current vs. Drain to Source voltage as a function of Gate voltage only where the polarities of the Drain voltage and Gate voltage are opposite, referenced to the Source as a common terminal, and where the polarity of the voltage applied to the Gate is appropriate to cause Channel inversion. Experimentally derived results which demonstrate and verify the operation of N and P-Channel Schottky barrier MOSFETS actually fabricated on P and N-type Silicon respectively, by a common procedure using vacuum deposited Chromium as a Schottky barrier forming metal, are also provided.

  16. Features

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergy Technologies |Feature Stories

  17. Regenerative Medicine: Learning from Past Examples

    E-Print Network [OSTI]

    Couto, Daniela S.

    Regenerative medicine products have characteristically shown great therapeutic potential, but limited market success. Learning from the past attempts at capturing value is critical for new and emerging regenerative medicine ...

  18. 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

  19. Multidisciplinary design optimization of an automotive magnetorheological brake design

    E-Print Network [OSTI]

    Park, Edward

    Multidisciplinary design optimization of an automotive magnetorheological brake design Edward J to the elec- tromagnet. Key issues involved in the initial design of the automotive MR brake are presented: Magnetorheological fluid; Automotive brake; Finite element analysis; Computational fluid dynamics; Multidisciplinary

  20. A diagnostic system for air brakes in commercial vehicles 

    E-Print Network [OSTI]

    Coimbatore Subramanian, Shankar Ram

    2007-09-17

    ............. 14 4 The S-cam foundation brake ....................... 15 5 A schematic of the drum brake ..................... 16 6 A schematic of the experimental setup ................. 24 7 A sectional view of the treadle valve .................. 26 8 A layout... the disc brake and the drum brake. In this dissertation, the main focus will be restricted to air brake systems that use S-cam drum foundation brakes. A. Background and motivation The safety of vehicles operating on the road depends amongst other things...

  1. Svendborg Brakes | 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 LIST OFAMERICA'SHeavyAgencyTendo New Energy EquipmentSvendborg Brakes Jump to:

  2. TMV Technology Capabilities Brake Stroke Monitor

    E-Print Network [OSTI]

    TMV Technology Capabilities Brake Stroke Monitor Brake monitoring systems are proactive maintenance This technology allows for CMV operators to have knowledge of their steer, drive, and tandem axle group weights setup is required. Current Safety/Enforcement Technologies EOBR (electronic on-board recorder) On

  3. Prioritizing Climate Change Mitigation Alternatives: Comparing Transportation Technologies to Options in Other Sectors

    E-Print Network [OSTI]

    Lutsey, Nicholas P.

    2008-01-01

    crops Full HEV (regenerative braking, battery-electricidle-off and limited regenerative braking Closing/covering

  4. Identifying Options for Deep Reductions in Greenhouse Gas Emissions from California Transportation: Meeting an 80% Reduction Goal in 2050

    E-Print Network [OSTI]

    Yang, Christopher; McCollum, David L; McCarthy, Ryan; Leighty, Wayne

    2008-01-01

    under low loads, and regenerative braking. Application ofthe entire fleet). Regenerative braking can improve energy

  5. An engine air-brake integration study

    E-Print Network [OSTI]

    Mulchandani, Hiten

    2011-01-01

    The feasibility of operating an engine air-brake (EAB) integrated with a pylon duct bifurcation in a realistic aircraft engine environment has been analyzed. The EAB uses variable exit guide vanes downstream of a high ...

  6. Advanced regenerative absorption refrigeration cycles

    DOE Patents [OSTI]

    Dao, Kim (14 Nace Ave., Piedmont, CA 94611)

    1990-01-01

    Multi-effect regenerative absorption cycles which provide a high coefficient of performance (COP) at relatively high input temperatures. An absorber-coupled double-effect regenerative cycle (ADR cycle) (10) is provided having a single-effect absorption cycle (SEA cycle) (11) as a topping subcycle and a single-effect regenerative absorption cycle (1R cycle) (12) as a bottoming subcycle. The SEA cycle (11) includes a boiler (13), a condenser (21), an expansion device (28), an evaporator (31), and an absorber (40), all operatively connected together. The 1R cycle (12) includes a multistage boiler (48), a multi-stage resorber (51), a multisection regenerator (49) and also uses the condenser (21), expansion device (28) and evaporator (31) of the SEA topping subcycle (11), all operatively connected together. External heat is applied to the SEA boiler (13) for operation up to about 500 degrees F., with most of the high pressure vapor going to the condenser (21) and evaporator (31) being generated by the regenerator (49). The substantially adiabatic and isothermal functioning of the SER subcycle (12) provides a high COP. For higher input temperatures of up to 700 degrees F., another SEA cycle (111) is used as a topping subcycle, with the absorber (140) of the topping subcycle being heat coupled to the boiler (13) of an ADR cycle (10). The 1R cycle (12) itself is an improvement in that all resorber stages (50b-f) have a portion of their output pumped to boiling conduits (71a-f) through the regenerator (49), which conduits are connected to and at the same pressure as the highest pressure stage (48a) of the 1R multistage boiler (48).

  7. Method and apparatus for wind turbine braking

    DOE Patents [OSTI]

    Barbu, Corneliu (Laguna Hills, CA); Teichmann, Ralph (Nishkayuna, NY); Avagliano, Aaron (Houston, TX); Kammer, Leonardo Cesar (Niskayuna, NY); Pierce, Kirk Gee (Simpsonville, SC); Pesetsky, David Samuel (Greenville, SC); Gauchel, Peter (Muenster, DE)

    2009-02-10

    A method for braking a wind turbine including at least one rotor blade coupled to a rotor. The method includes selectively controlling an angle of pitch of the at least one rotor blade with respect to a wind direction based on a design parameter of a component of the wind turbine to facilitate reducing a force induced into the wind turbine component as a result of braking.

  8. Contactless magnetic brake for automotive applications 

    E-Print Network [OSTI]

    Gay, Sebastien Emmanuel

    2009-05-15

    MAGNETIC BRAKE FOR AUTOMOTIVE APPLICATIONS A Dissertation by SEBASTIEN EMMANUEL GAY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY... May 2005 Major Subject: Electrical Engineering CONTACTLESS MAGNETIC BRAKE FOR AUTOMOTIVE APPLICATIONS A Dissertation by SEBASTIEN EMMANUEL GAY Submitted to Texas A&M University in partial fulfillment of the requirements...

  9. CMV Brake Wear and Performance Test Little is known about the brake

    E-Print Network [OSTI]

    inspections were due to brake defects. Additionally, brake maintenance and repair present a significant cost as part of an 18-month Field Operational Test. Parameters Being Measured The PBBT machine uses in Data, Statistical Analysis Geo-Spatial Information Tools Defense Transportation Energy Policy Analysis

  10. Design Restrictions Ground clearance Brake components cannot contact

    E-Print Network [OSTI]

    Provancher, William

    of Mechanical Engineering, University of Utah Test Results Heat Test ­ apply pressure to the rotating brake. The truck and brake must be strong but not heavy. · Temperature ­ The brake will generate a lot of heat. The epoxy, wheels and bearings must all be able to withstand high heat. · Testing of Realistic Conditions

  11. High power regenerative laser amplifier

    DOE Patents [OSTI]

    Miller, J.L.; Hackel, L.A.; Dane, C.B.; Zapata, L.E.

    1994-02-08

    A regenerative amplifier design capable of operating at high energy per pulse, for instance, from 20-100 Joules, at moderate repetition rates, for instance from 5-20 Hertz is provided. The laser amplifier comprises a gain medium and source of pump energy coupled with the gain medium; a Pockels cell, which rotates an incident beam in response to application of a control signal; an optical relay system defining a first relay plane near the gain medium and a second relay plane near the rotator; and a plurality of reflectors configured to define an optical path through the gain medium, optical relay and Pockels cell, such that each transit of the optical path includes at least one pass through the gain medium and only one pass through the Pockels cell. An input coupler, and an output coupler are provided, implemented by a single polarizer. A control circuit coupled to the Pockels cell generates the control signal in timed relationship with the input pulse so that the input pulse is captured by the input coupler and proceeds through at least one transit of the optical path, and then the control signal is applied to cause rotation of the pulse to a polarization reflected by the polarizer, after which the captured pulse passes through the gain medium at least once more and is reflected out of the optical path by the polarizer before passing through the rotator again to provide an amplified pulse. 7 figures.

  12. Regenerative rotary displacer Stirling engine

    SciTech Connect (OSTI)

    Isshiki, Naotsugu; Watanabe, Hiroichi; Raggi, L.; Isshiki, Seita; Hirata, Koichi

    1996-12-31

    A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

  13. Engine brake control in automatic transmission

    SciTech Connect (OSTI)

    Hayasaki, K.; Sugano, K.

    1988-09-13

    This patent describes an engine braking control for a transmission for an automotive vehicle having an engine, the transmission including an input member drivingly coupled to the engine and an output member subject to load from driving wheels of the automotive vehicle, the transmission also including a first rotary member, a second rotary member, a hydraulically operated clutch selectively establishing a drive connection between the first rotary member and the second rotary member, and a one-way clutch arranged in parallel to the hydraulically operated clutch such that when the hydraulically operated clutch is released, the one-way clutch transmits forward torque from the first rotary member to the second rotary member, but interrupts transmission of revers torque to the first rotary member from the second rotary member, the engine braking control comprising: means for providing an engine braking command fluid pressure signal when demanded by a vehicle operator; a valve means for normally discharging hydraulic fluid from the hydraulically operated clutch to deactivate the hydraulically operated clutch, the valve means being fluidly connected to the hydraulically operated clutch, the engine braking command fluid pressure signal providing means and a drain port. The valve means including a valve spool having a first position where the hydraulically operated clutch is allowed to communicate with the drain port to permit discharge of hydraulic fluid therefrom and thus the hydraulically operated clutch is caused to be deactivated and a second position where the hydraulically operated clutch is disconnected from the drain port and allowed to communicate with the engine braking command fluid pressure signal.

  14. Climate and Transportation Solutions: Findings from the 2009 Asilomar Conference on Transportation and Energy Policy

    E-Print Network [OSTI]

    Sperling, Daniel; Cannon, James S.

    2010-01-01

    ef?ciency through regenerative braking. The development of aincluding start/stop with regenerative braking, combustioneffects of regenerative braking. Since the acceleration term

  15. Quantifying the benefits of hybrid vehicles

    E-Print Network [OSTI]

    Turrentine, Tom; Delucchi, Mark; Heffner, Reid R.; Kurani, Kenneth S; Sun, Yongling

    2006-01-01

    coasting through regenerative braking. Second, by downsizingrecharge the battery. Regenerative braking and coasting Onehybrid that uses regenerative braking and some electric

  16. The Rise of Electric Two-wheelers in China: Factors for their Success and Implications for the Future

    E-Print Network [OSTI]

    Weinert, Jonathan X.

    2007-01-01

    management system. Regenerative braking too many products,60V battery systems and regenerative braking. Two companiessell E2Ws with regenerative braking systems. Innovation in

  17. Fuel Cell Powered Vehicles Using Supercapacitors: Device Characteristics, Control Strategies, and Simulation Results

    E-Print Network [OSTI]

    Zhao, Hengbing; Burke, Andy

    2010-01-01

    the capture of regenerative braking energy, which willand frequent capture of regenerative braking energy, thethe stack and the regenerative braking energy and provide a

  18. ELECTROCHEMICAL POWER FOR TRANSPORTATION

    E-Print Network [OSTI]

    Cairns, Elton J.

    2012-01-01

    Improvement from Regenerative Braking on the Copper Electriccomponents. The use of regenerative braking can also have aeasier to add regenerative braking capability, particularly

  19. Transportation and its Infrastructure

    E-Print Network [OSTI]

    2007-01-01

    electrical energy if regenerative braking is available (seerecharged only by regenerative braking and engine charging,systems, store regenerative braking energy and to operate

  20. Optimum Performance of Direct Hydrogen Hybrid Fuel Cell Vehicles

    E-Print Network [OSTI]

    Zhao, Hengbing; Burke, Andy

    2009-01-01

    decelerating through regenerative braking. In the hybridvehicle through regenerative braking. The remaining energya narrow range, such that regenerative braking energy can be

  1. Hybrid Braking System for Non-Drive Axles | Department of Energy

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

    Braking System for Non-Drive Axles Hybrid Braking System for Non-Drive Axles A hybrid braking system is designed to conserve diesel fuel (or alternative fuels) by using...

  2. April 2011 1 Regenerative Fuel Cells

    E-Print Network [OSTI]

    . Economics 2. Electrolyzer Optimization 3. Fuel Cell Optimization 4. What to do with O2? 5. High Pressure Storage 1. Economics 2. Electrolyzer Optimization 3. Fuel Cell Optimization 4. What to do with O2? 5. HighApril 2011 1 Regenerative Fuel Cells for Energy Storage April 2011 Corky Mittelsteadt #12;April

  3. *http://nist.gov/mml/polymers/biomaterials/functional_imaging_regenerative_medicine_workshop. ANNOUNCING Functional Imaging for Regenerative Medicine

    E-Print Network [OSTI]

    *http://nist.gov/mml/polymers/biomaterials/functional_imaging_regenerative_medicine_workshop. cfm ANNOUNCING ­ Functional Imaging for Regenerative Medicine A workshop to be held in Gaithersburg, MD on 31 May ­ 1 June 2012 Tissue Engineering and Regenerative Medicine (TERM) increasingly rely on imaging

  4. Braking system for use with an arbor of a microscope

    DOE Patents [OSTI]

    Norgren, Duane U. (Orinda, CA)

    1984-01-01

    A balanced braking system comprising a plurality of braking assemblies located about a member to be braked. Each of the braking assemblies consists of a spring biased piston of a first material fitted into a body of a different material which has a greater contraction upon cooling than the piston material. The piston is provided with a recessed head portion over which is positioned a diaphragm and forming a space therebetween to which is connected a pressurized fluid supply. The diaphragm is controlled by the fluid in the space to contact or withdraw from the member to be braked. A cooling device causes the body within which the piston is fitted to contract more than the piston, producing a tight shrink fit therebetween. The braking system is particularly applicable for selectively braking an arbor of an electron microscope which immobilizes, for example, a vertically adjustable low temperature specimen holder during observation. The system provides balanced braking forces which can be easily removed and re-established with minimal disturbance to arbor location.

  5. Development of Diagnostic Algorithms for Air Brakes in Trucks 

    E-Print Network [OSTI]

    Dhar, Sandeep

    2011-10-21

    In this dissertation, we focus on development of algorithms for estimating the severity of air leakage and for predicting the out-of-adjustment of pushrod in an air brake system of heavy commercial vehicles. The leakage of air from the brake system...

  6. A pressure control scheme for air brakes in commercial vehicles 

    E-Print Network [OSTI]

    Bowlin, Christopher Leland

    2007-04-25

    This research is focused on developing a control scheme for regulating the pressure in the brake chamber of an air brake system found in most commercial vehicles like trucks, tractor-trailers and buses. Such a control scheme can be used...

  7. Ultracapacitor Technologies and Application in Hybrid and Electric Vehicles

    E-Print Network [OSTI]

    Burke, Andy

    2009-01-01

    recharged during regenerative braking. With these two modes,energy during regenerative braking. In the Honda system, the

  8. Batteries for Plug-in Hybrid Electric Vehicles (PHEVs): Goals and the State of Technology circa 2008

    E-Print Network [OSTI]

    Axsen, Jonn; Burke, Andy; Kurani, Kenneth S

    2008-01-01

    generator or from regenerative braking and uses the energya generator and from regenerative braking, and passes energy

  9. Driving Plug-In Hybrid Electric Vehicles: Reports from U.S. Drivers of HEVs converted to PHEVs, circa 2006-07

    E-Print Network [OSTI]

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

    2008-01-01

    energy through regenerative braking. In contrast, PHEVs canfrom a stop, and regenerative braking—signaled to HEV owners

  10. The Impact of Biomechanics in Tissue Engineering and Regenerative Medicine

    E-Print Network [OSTI]

    Butler, David L.

    Biomechanical factors profoundly influence the processes of tissue growth, development, maintenance, degeneration, and repair. Regenerative strategies to restore damaged or diseased tissues in vivo and create living tissue ...

  11. Airbus A320 Braking as Predicate-Action Peter B. Ladkin

    E-Print Network [OSTI]

    Ladkin, Peter B.

    to interest us and others in the design of the A320 braking system [FI.93a, FI.93b, FI.93c]. This paper]. The Braking System Design of the A320. The braking system design of the A320 is described in the A320 Flight). The brakes and anti-skid system are described in [FCOM, 1.32.30: Landing Gear: Brakes and Anti

  12. A mathematical model for air brake systems in the presence of leaks 

    E-Print Network [OSTI]

    Ramaratham, Srivatsan

    2008-10-10

    of leaks. Brake systems in trucks are crucial for ensuring the safety of vehicles and passengers on the roadways. Most trucks in the US are equipped with S-cam drum brake systems and they are sensitive to maintenance. Brake defects such as leaks are a major... and schematic of operation. . . . . . . . . . . . . 7 3 A typical drum brake assembly. . . . . . . . . . . . . . . . . . . . . . 8 4 Front and rear brake chambers. . . . . . . . . . . . . . . . . . . . . . 8 5 Automatic slack adjuster construction...

  13. One-volt p-InP/n-CdSe regenerative photoelectrochemical cell

    SciTech Connect (OSTI)

    Ang, P.G.P.; Sammells, A.F.

    1983-08-01

    Features and performance of a two-photoelectrode regenerative photoelectrochemical (PEC) cell that yielded a combined photovoltage of more than one volt are reported. The photoanode was n-CdSe, the photocathode was p-InP, and the electrolyte was aqueous sulfide/polysulfide. Details of the fabrication process are provided, including formation of an ohmic contact by sputter deposited gold and then electroplating the photocathode with Zn, followed by a final sputtered gold layer. Tests under 100 mW/sq cm illumination of the unoptimized regenerative cell produced an open circuit voltage of 1.15 V, a short circuit current of 24 mA/sq cm, a fill factor of 0.40, and an overall efficiency of 5.5 percent.

  14. Multiple excitation regenerative amplifier inertial confinement system

    DOE Patents [OSTI]

    George, Victor E. [Livermore, CA; Haas, Roger A. [Pleasanton, CA; Krupke, William F. [Pleasanton, CA; Schlitt, Leland G. [Livermore, CA

    1980-05-27

    The invention relates to apparatus and methods for producing high intensity laser radiation generation which is achieved through an optical amplifier-storage ring design. One or two synchronized, counterpropagating laser pulses are injected into a regenerative amplifier cavity and amplified by gain media which are pumped repetitively by electrical or optical means. The gain media excitation pulses are tailored to efficiently amplify the laser pulses during each transit. After the laser pulses have been amplified to the desired intensity level, they are either switched out of the cavity by some switch means, as for example an electro-optical device, for any well known laser end uses, or a target means may be injected into the regenerative amplifier cavity in such a way as to intercept simultaneously the counterpropagating laser pulses. One such well known end uses to which this invention is intended is for production of high density and temperature plasmas suitable for generating neutrons, ions and x-rays and for studying matter heated by high intensity laser radiation.

  15. Multiple excitation regenerative amplifier inertial confinement system

    DOE Patents [OSTI]

    George, V.E.; Haas, R.A.; Krupke, W.F.; Schlitt, L.G.

    1980-05-27

    The invention relates to apparatus and methods for producing high intensity laser radiation generation which is achieved through an optical amplifier-storage ring design. One or two synchronized, counterpropagating laser pulses are injected into a regenerative amplifier cavity and amplified by gain media which are pumped repetitively by electrical or optical means. The gain media excitation pulses are tailored to efficiently amplify the laser pulses during each transit. After the laser pulses have been amplified to the desired intensity level, they are either switched out of the cavity by some switch means, as for example an electro-optical device, for any well known laser end uses, or a target means may be injected into the regenerative amplifier cavity in such a way as to intercept simultaneously the counterpropagating laser pulses. One such well known end uses to which this invention is intended is for production of high density and temperature plasmas suitable for generating neutrons, ions and x-rays and for studying matter heated by high intensity laser radiation. 11 figs.

  16. Regenerative Process in Life and Mind PETER CARIANIa

    E-Print Network [OSTI]

    Cariani, Peter

    process in life and mind. Annals, New York Acad. Sci., 2000; 91:26-34. #12;27CARIANI: REGENERATIVE PROCESS system, then mental states can be seen as switch- ings between alternative sets of stable, self IN LIFE AND MIND systems.3­6 Regenerative processes in which energy flows, material parts, and func

  17. Design considerations for an automotive magnetorheological brake Kerem Karakoc, Edward J. Park *, Afzal Suleman

    E-Print Network [OSTI]

    Park, Edward

    Design considerations for an automotive magnetorheological brake Kerem Karakoc, Edward J. Park *, Afzal Suleman Department of Mechanical Engineering, University of Victoria, P.O. Box 3055, STN CSC February 2008 Available online xxxx Keywords: Mechatronic design Magnetorheological fluid Automotive brake

  18. Modeling the pneumatic relay valve of an s-cam air brake 

    E-Print Network [OSTI]

    Vilayannur Natarajan, Shankar

    2005-08-29

    Statistics indicate that defects in brake system contribute significantly to fatal crashes involving commercial vehicles. Hence there is a need for developing preventive and active safety measures for assessing the performance of an air brake system...

  19. Braking the Gas in the beta Pictoris Disk

    E-Print Network [OSTI]

    Fern'andez, R; Wu, Y; Brandeker, Alexis; Fern\\'andez, Rodrigo

    2006-01-01

    (Abridged) The main sequence star beta Pictoris hosts the best studied circumstellar disk to date. Nonetheless, a long-standing puzzle has been around since the detection of metallic gas in the disk: radiation pressure from the star should blow the gas away, yet the observed motion is consistent with Keplerian rotation. In this work we search for braking mechanisms that can resolve this discrepancy. We find that all species affected by radiation force are heavily ionized and dynamically coupled into a single fluid by Coulomb collisions, reducing the radiation force on species feeling the strongest acceleration. For a gas of solar composition, the resulting total radiation force still exceeds gravity, while a gas of enhanced carbon abundance could be self-braking. We also explore two other braking agents: collisions with dust grains and neutral gas. Grains surrounding beta Pic are photoelectrically charged to a positive electrostatic potential. If a significant fraction of the grains are carbonaceous (10% in t...

  20. Aalborg Universitet Disturbance Control of the Hydraulic Brake in a Wind Turbine

    E-Print Network [OSTI]

    Yang, Zhenyu

    Aalborg Universitet Disturbance Control of the Hydraulic Brake in a Wind Turbine Jepsen, Frank Brake in a Wind Turbine. In Energy Conference and Exhibition (EnergyCon), 2010 IEEE International . (pp from vbn.aau.dk on: juli 07, 2015 #12;Disturbance Control of the Hydraulic Brake in a Wind Turbine

  1. The Chinese brake fern (Pteris vittata L.), native to China, is widely naturalized in

    E-Print Network [OSTI]

    Ma, Lena

    The Chinese brake fern (Pteris vittata L.), native to China, is widely naturalized in many areas and anatomical aspects of Chinese brake fern (Pteris vittata; Pteridaceae) Bhaskar Bondada1, Cong Tu, and Lena Ma-0290, U.S.A.; e-mail: lqma@ifas.ufl.edu). Sur- face structure and anatomical aspects of Chinese brake fern

  2. Emission Factor for Antimony in Brake Abrasion Dusts as One of the

    E-Print Network [OSTI]

    Short, Daniel

    112-8551, Japan, and Akebono Brake Industry, Co., Ltd., 5-4-71 Higashi, Hanyu, Saitama 348-8509, Japan, and shape distributions, automotive brake abrasion dusts were suspected as one of the important sources factor that originates from automotive braking in order to quantitatively evaluate the contribution

  3. Tyre curve estimation in slip-controlled braking

    E-Print Network [OSTI]

    Miller, Jonathan I.; Cebon, David

    2015-06-09

    identifying a Kalman filter observer for vehicle handling dynamics. IMECHE Part D – J. of Auto. Eng. 2006; 220: 1063–1072. 27. Yi J et al. Emergency braking control with an observer-based dynamic tire/road friction model and wheel angular velocity... also used by Shim et al.15, and Hong et al.16 Unsal and Kachroo17 compared an EKF with a sliding mode observer to estimate vehicle velocity, using this estimated velocity with a nominal slip-friction curve to determine the braking force. The authors...

  4. High power, high beam quality regenerative amplifier

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Dane, Clifford B. (Livermore, CA)

    1993-01-01

    A regenerative laser amplifier system generates high peak power and high energy per pulse output beams enabling generation of X-rays used in X-ray lithography for manufacturing integrated circuits. The laser amplifier includes a ring shaped optical path with a limited number of components including a polarizer, a passive 90 degree phase rotator, a plurality of mirrors, a relay telescope, and a gain medium, the components being placed close to the image plane of the relay telescope to reduce diffraction or phase perturbations in order to limit high peak intensity spiking. In the ring, the beam makes two passes through the gain medium for each transit of the optical path to increase the amplifier gain to loss ratio. A beam input into the ring makes two passes around the ring, is diverted into an SBS phase conjugator and proceeds out of the SBS phase conjugator back through the ring in an equal but opposite direction for two passes, further reducing phase perturbations. A master oscillator inputs the beam through an isolation cell (Faraday or Pockels) which transmits the beam into the ring without polarization rotation. The isolation cell rotates polarization only in beams proceeding out of the ring to direct the beams out of the amplifier. The diffraction limited quality of the input beam is preserved in the amplifier so that a high power output beam having nearly the same diffraction limited quality is produced.

  5. High power, high beam quality regenerative amplifier

    DOE Patents [OSTI]

    Hackel, L.A.; Dane, C.B.

    1993-08-24

    A regenerative laser amplifier system generates high peak power and high energy per pulse output beams enabling generation of X-rays used in X-ray lithography for manufacturing integrated circuits. The laser amplifier includes a ring shaped optical path with a limited number of components including a polarizer, a passive 90 degree phase rotator, a plurality of mirrors, a relay telescope, and a gain medium, the components being placed close to the image plane of the relay telescope to reduce diffraction or phase perturbations in order to limit high peak intensity spiking. In the ring, the beam makes two passes through the gain medium for each transit of the optical path to increase the amplifier gain to loss ratio. A beam input into the ring makes two passes around the ring, is diverted into an SBS phase conjugator and proceeds out of the SBS phase conjugator back through the ring in an equal but opposite direction for two passes, further reducing phase perturbations. A master oscillator inputs the beam through an isolation cell (Faraday or Pockels) which transmits the beam into the ring without polarization rotation. The isolation cell rotates polarization only in beams proceeding out of the ring to direct the beams out of the amplifier. The diffraction limited quality of the input beam is preserved in the amplifier so that a high power output beam having nearly the same diffraction limited quality is produced.

  6. Braking index of isolated pulsars: open questions and ways forward

    E-Print Network [OSTI]

    Hamil, Oliver

    2015-01-01

    Isolated pulsars are rotating neutron stars with accurately measured angular velocities $\\Omega$, and their time derivatives which show unambiguously that the pulsars are slowing down. Although the exact mechanism of the spin-down is a question of debate, the commonly accepted view is that it arises either through emission of magnetic dipole radiation (MDR) from a rotating magnetized body, through emission of a relativistic particle wind, or via higher order magnetic multipole or gravitational quadrupole radiation. The calculated energy loss by a rotating pulsar is model dependent and leads to the power law $\\dot{\\Omega}$ = -K $\\Omega^{\\rm n}$ where $n$ is called the braking index. The theoretical value for braking index is $n = 1, 3, 5$ for wind, MDR, quadrupole radiation respectively. The accepted view is that pulsar braking is strongly dominated by MDR. Highly precise observations of isolated pulsars yield braking index values in the range $1 < n < 2.8$ which are consistently less than the value pred...

  7. Active Pedestrian Safety by Automatic Braking and Evasive Steering

    E-Print Network [OSTI]

    Gavrila, Dariu M.

    1 Active Pedestrian Safety by Automatic Braking and Evasive Steering C. Keller, T. Dang, H. Fritz of crashes. This paper presents a novel active pedestrian safety system, which combines sensing, situation two complementary approaches for added robustness: motion-based object detection and pedestrian

  8. Heavy and Overweight Vehicle Brake Testing: Five-Axle Combination Tractor-Flatbed Final Report

    SciTech Connect (OSTI)

    Lascurain, Mary Beth; Capps, Gary J; Franzese, Oscar

    2013-10-01

    The Federal Motor Carrier Safety Administration, in coordination with the Federal Highway Administration, sponsored the Heavy and Overweight Vehicle Brake Testing (HOVBT) program in order to provide information about the effect of gross vehicle weight (GVW) on braking performance. Because the Federal Motor Carrier Safety Regulations limit the number of braking system defects that may exist for a vehicle to be allowed to operate on the roadways, the examination of the effect of brake defects on brake performance for increased loads is also relevant. The HOVBT program seeks to provide relevant information to policy makers responsible for establishing load limits, beginning with providing test data for a combination tractor/trailer. This testing was conducted on a five-axle combination vehicle with tractor brakes meeting the Reduced Stopping Distance requirement rulemaking. This report provides a summary of the testing activities, the results of various analyses of the data, and recommendations for future research. Following a complete brake rebuild, instrumentation, and brake burnish, stopping tests were performed from 20 and 40 mph with various brake application pressures (15 psi, 25 psi, 35 psi, 45 psi, 55 psi, and full system pressure). These tests were conducted for various brake conditions at the following GVWs: 60,000, 80,000, 91,000, 97,000, 106,000, and 116,000 lb. The 80,000-lb GVWs included both balanced and unbalanced loads. The condition of the braking system was also varied. To introduce these defects, brakes (none, forward drive axle, or rear trailer axle) were made inoperative. In addition to the stopping tests, performance-based brake tests were conducted for the various loading and brake conditions. Analysis of the stopping test data showed the stopping distance to increase with load (as expected) and also showed that more braking force was generated by the drive axle brakes than the trailer axle brakes. The constant-pressure stopping test data revealed a linear relationship between brake application pressure and was used to develop an algorithm to normalize stopping data for weight and initial speed.

  9. Ignition feedback regenerative free electron laser (FEL) amplifier

    DOE Patents [OSTI]

    Kim, Kwang-Je (Burr Ridge, IL); Zholents, Alexander (Walnut Creek, CA); Zolotorev, Max (Oakland, CA)

    2001-01-01

    An ignition feedback regenerative amplifier consists of an injector, a linear accelerator with energy recovery, and a high-gain free electron laser amplifier. A fraction of the free electron laser output is coupled to the input to operate the free electron laser in the regenerative mode. A mode filter in this loop prevents run away instability. Another fraction of the output, after suitable frequency up conversion, is used to drive the photocathode. An external laser is provided to start up both the amplifier and the injector, thus igniting the system.

  10. Energy Efficiency in Heavy Vehicle Tires, Drivetrains, and Braking Systems

    SciTech Connect (OSTI)

    Peter J. Blau

    2000-04-26

    This document was prepared to support the primary goals of the Department of Energy, Office of Heavy Vehicle Technologies. These were recently stated as follows: ''Develop by 2004 the enabling technologies for a class 7-8 truck with a fuel efficiency of 10 mpg (at 65 mph) which will meet prevailing emission standards. For Class 3-6 trucks operating on an urban driving cycle, develop by 2004 commercially viable vehicles that achieve at least double the fuel economy of comparable current vehicles (1999), and as a research goal, reduce criteria pollutants to 30% below EPA standards. Develop by 2004 the diesel engine enabling technologies to support large-scale industry dieselization of Class 1 and 2 trucks, achieving a 35 % fuel efficiency improvement over comparable gasoline-fueled trucks, while meeting applicable emissions standards.'' The enabling technologies for improving the fuel efficiency of trucks, include not only engine technologies but also technologies involved with lowering the rolling resistance of tires, reducing vehicle aerodynamic drag, improving thermal management, and reducing parasitic frictional losses in drive train components. Opportunities also exist for making better use of the energy that might ordinarily be dissipated during vehicle braking. Braking systems must be included in this evaluation since safety in truck operations is vital, and braking requirements are greater for vehicles having lowered resistance to rolling. The Office of Heavy Vehicle Technologies has initiated a program to improve the aerodynamics of heavy vehicles through wind tunnel testing, computational modeling, and on-road evaluations. That activity is described in a separate multi-year plan; therefore, emphasis in this document will be on tires, drive trains, and braking systems. Recent, dramatic fluctuations in diesel fuel prices have emphasized the importance of effecting savings in truck fuel economy by implementing new component designs and materials.

  11. Braking the Gas in the beta Pictoris Disk

    E-Print Network [OSTI]

    Rodrigo Fernández; Alexis Brandeker; Yanqin Wu

    2006-01-11

    (Abridged) The main sequence star beta Pictoris hosts the best studied circumstellar disk to date. Nonetheless, a long-standing puzzle has been around since the detection of metallic gas in the disk: radiation pressure from the star should blow the gas away, yet the observed motion is consistent with Keplerian rotation. In this work we search for braking mechanisms that can resolve this discrepancy. We find that all species affected by radiation force are heavily ionized and dynamically coupled into a single fluid by Coulomb collisions, reducing the radiation force on species feeling the strongest acceleration. For a gas of solar composition, the resulting total radiation force still exceeds gravity, while a gas of enhanced carbon abundance could be self-braking. We also explore two other braking agents: collisions with dust grains and neutral gas. Grains surrounding beta Pic are photoelectrically charged to a positive electrostatic potential. If a significant fraction of the grains are carbonaceous (10% in the midplane and larger at higher altitudes), ions can be slowed down to satisfy the observed velocity constraints. For neutral gas to brake the coupled ion fluid, we find the minimum required mass to be $\\approx$ 0.03 $M_\\earth$, consistent with observed upper limits of the hydrogen column density, and substantially reduced relative to previous estimates. Our results favor a scenario in which metallic gas is generated by grain evaporation in the disk, perhaps during grain-grain collisions. We exclude a primordial origin for the gas, but cannot rule out the possibility of its production by falling evaporating bodies near the star. We discuss the implications of this work for observations of gas in other debris disks.

  12. SPINDOWN OF ISOLATED NEUTRON STARS: GRAVITATIONAL WAVES OR MAGNETIC BRAKING?

    SciTech Connect (OSTI)

    Staff, Jan E.; Jaikumar, Prashanth; Chan, Vincent; Ouyed, Rachid

    2012-05-20

    We study the spindown of isolated neutron stars from initially rapid rotation rates, driven by two factors: (1) gravitational wave emission due to r-modes and (2) magnetic braking. In the context of isolated neutron stars, we present the first study including self-consistently the magnetic damping of r-modes in the spin evolution. We track the spin evolution employing the RNS code, which accounts for the rotating structure of neutron stars for various equations of state. We find that, despite the strong damping due to the magnetic field, r-modes alter the braking rate from pure magnetic braking for B {<=} 10{sup 13} G. For realistic values of the saturation amplitude {alpha}{sub sat}, the r-mode can also decrease the time to reach the threshold central density for quark deconfinement. Within a phenomenological model, we assess the gravitational waveform that would result from r-mode-driven spindown of a magnetized neutron star. To contrast with the persistent signal during the spindown phase, we also present a preliminary estimate of the transient gravitational wave signal from an explosive quark-hadron phase transition, which can be a signal for the deconfinement of quarks inside neutron stars.

  13. Frequency-Domain Analysis of Super-Regenerative Amplifiers

    E-Print Network [OSTI]

    Dawson, Joel L.

    Since its invention in 1922, the super-regenerative amplifier (SRA) has been used in a variety of short-range, low-power, and/or low-cost wireless systems due to its simple implementation and excellent performance for a ...

  14. Development of Supported Bifunctional Electrocatalysts for Unitized Regenerative Fuel Cells

    E-Print Network [OSTI]

    . Unitized regenerative fuel cells URFCs are promising energy storage systems for uninterrupted power supplies, solar-powered air- craft, satellites and micro-spacecraft, and certain terrestrial vehicles. They are also potentially useful for load leveling of distributed power generation from sources such as wind

  15. Regenerative memory in time-delayed neuromorphic photonic systems

    E-Print Network [OSTI]

    Romeira, B; Figueiredo, José M L; Barland, S; Javaloyes, J

    2015-01-01

    We investigate a regenerative memory based upon a time-delayed neuromorphic photonic oscillator and discuss the link with temporal localized structures. Our experimental implementation is based upon a optoelectronic system composed of a nanoscale nonlinear resonant tunneling diode coupled to a laser that we link to the paradigm of neuronal activity, the FitzHugh-Nagumo model with delayed feedback.

  16. Real-Time Dynamic Brake Assessment Proof of Concept Final Report

    SciTech Connect (OSTI)

    Lascurain, Mary Beth [ORNL; Franzese, Oscar [ORNL; Capps, Gary J [ORNL

    2011-11-01

    This proof-of-concept research was performed to explore the feasibility of using real-world braking data from commercial motor vehicles to make a diagnosis of brake condition similar to that of the performance-based brake tester (PBBT). This was done by determining the relationship between pressure and brake force (P-BF), compensating for the gross vehicle weight (GVW). The nature of this P-BF relationship (e.g., low braking force for a given brake application pressure) may indicate brake system problems. In order to determine the relationship between brake force and brake application pressure, a few key parameters of duty cycle information were collected. Because braking events are often brief, spanning only a few seconds, a sample rate of 10 Hz was needed. The algorithm under development required brake application pressure and speed (from which deceleration was calculated). Accurate weight estimation was also needed to properly derive the braking force from the deceleration. In order to ensure that braking force was the predominant factor in deceleration for the segments of data used in analysis, the data was screened for grade as well. Also, the analysis needed to be based on pressures above the crack pressure. The crack pressure is the pressure below which the individual brakes are not applied due the nature of the mechanical system. This value, which may vary somewhat from one wheel end to another, is approximately 10 psi. Therefore, only pressures 15 psi and above were used in the analysis. The Department of Energy s Medium Truck Duty Cycle research has indicated that under the real-world circumstances of the test vehicle brake pressures of up to approximately 30 psi can be expected. Several different types of data were collected during the testing task of this project. Constant-pressure stopping tests were conducted at several combinations of brake application pressure (15, 20, 25, and 30 psi), load conditions (moderately and fully laden), and speeds (20 and 30 mph). Data was collected at 10 Hz. Standard and stepped-pressure performance-based brake tests with brake pressure transducers were performed for each loading condition. The stepped-pressure test included the constant-pressure intervals of brake application at 15, 20, 25, and 30 psi. The PBBT data files included 10 Hz streaming data collected during the testing of each axle. Two weeks of real-world duty cycle (driving and braking) data was also collected at 10 Hz. Initial analysis of the data revealed that the data collected in the field (i.e., day-to-day operations) provided the same information as that obtained from the controlled tests. Analysis of the data collected revealed a strong linear relationship between brake application pressure and deceleration for given GVWs. As anticipated, initial speed was not found to be a significant factor in the deceleration-pressure relationship, unlike GVW. The positive results obtained from this proof of concept test point to the need for further research to expand this concept. A second phase should include testing over a wider range of speeds and include medium brake application pressures in addition to the low pressures tested in this research. Testing on multiple vehicles would also be of value. This future phase should involve testing to determine how degradation of braking performance affects the pressure-deceleration relationship.

  17. Advanced regenerative thermal oxidation (RTO) technology for air toxics control - selected case histories

    SciTech Connect (OSTI)

    Seiwert, J.J. Jr.

    1997-12-31

    Advanced design regenerative thermal oxidation (RTO) systems have been developed and are in commercial scale use for control of process emissions containing air toxics (HAPs) and VOCs. High operating temperatures coupled with high thermal energy recovery efficiencies inherent with RTO technology provide for high destruction efficiencies while minimizing formation of objectionable combustion byproducts. These results are achieved with low system operating costs. This paper covers development of advanced design commercial RTO systems for control of air emissions from several important commercial processes: total reduced sulfur (TRS) and other HAPs/VOC emissions from pulp mill processes. Chlorinated organics and other HAPs/VOC emissions from pharmaceutical manufacturing operations. The data presented represent the first commercial scale application of RTO technology to abate emissions from these processes. Particular design features required for each specific process, in order to provide reliable, safe and effective systems, are reviewed. Emissions abatement performance, as well as operational data, are presented for the systems.

  18. Tachyon cosmology, supernovae data and the Big Brake singularity

    E-Print Network [OSTI]

    Z. Keresztes; L. Á. Gergely; V. Gorini; U. Moschella; A. Yu. Kamenshchik

    2009-04-21

    We compare the existing observational data on type Ia Supernovae with the evolutions of the universe predicted by a one-parameter family of tachyon models which we have introduced recently in paper \\cite{we-tach}. Among the set of the trajectories of the model which are compatible with the data there is a consistent subset for which the universe ends up in a new type of soft cosmological singularity dubbed Big Brake. This opens up yet another scenario for the future history of the universe besides the one predicted by the standard $\\Lambda$CDM model.

  19. Adaptive Torque Control of Electro-Rheological Fluid Brakes Used in Active Knee Rehabilitation Devices

    E-Print Network [OSTI]

    Mavroidis, Constantinos

    1 Adaptive Torque Control of Electro-Rheological Fluid Brakes Used in Active Knee Rehabilitation-rheological fluid (ERF) based variable resistance brakes that are used in compact and portable rehabilitation Control, Actuators for Rehabilitation Robotics I. INTRODUCTION Electro-rheological fluids (ERFs

  20. Modeling the pneumatic subsystem of a S-cam air brake system 

    E-Print Network [OSTI]

    Coimbatore Subramanian, Shankar

    2004-09-30

    The air brake system is one of the critical components in ensuring the safe operation of any commercial vehicle. This work is directed towards the development of a fault-free model of the pneumatic subsystem of the air brake system. This model can...

  1. On The Use of Eddy Current Brakes as Tunable, Fast Turn-On Viscous Dampers For Haptic Rendering

    E-Print Network [OSTI]

    Hayward, Vincent

    On The Use of Eddy Current Brakes as Tunable, Fast Turn-On Viscous Dampers For Haptic RenderingGill University, Montr´eal, Canada ABSTRACT We describe the use of eddy current brakes as fast turn-on, tunable, linear dampers for haptic rendering using a prototype haptic device outfitted with eddy current brakes

  2. A nonextensive view of the stellar braking indices

    E-Print Network [OSTI]

    de Freitas, D B; Soares, B B; Silva, J R P

    2015-01-01

    The present work is based on a description for the angular mometum loss rate due to magnetic braking for main-sequence stars on the relationship between stellar rotation and age. In general, this loss rate denoted by $\\mathrm dJ/\\mathrm dt$ depends on angular velocity $\\Omega$ in the form $\\mathrm dJ/\\mathrm dt\\propto\\Omega^{q}$, where $q$ is a parameter extracted from nonextensive statistical mechanics. Already, in context of stellar rotation, this parameter is greater than unity and it is directly related to the braking index. For $q$ equal to unity, the scenario of saturation of the magnetic field is recovered, otherwise $q$ indicates an unsaturated field. This new approach have been proposed and investigated by de Freitas \\& De Medeiros for unsaturated field stars. In present work, we propose a nonextensive approach for the stellar rotational evolution based on the Reiners \\& Mohanthy model. In this sense, we developed a nonextensive version of Reiners \\& Mohanthy torque and also compare this ...

  3. REGENERATIVE STORMWATER CONVEYANCE (RSC) AS AN INTEGRATED APPROACH TO SUSTAINABLE STORMWATER PLANNING ON LINEAR PROJECTS

    E-Print Network [OSTI]

    Berg, Joe; Underwood, Keith

    2009-01-01

    Maryland, USA Abstract Stormwater conveyance practices areor outfall. Conventional stormwater outfalls cause erosion,Introduction Regenerative Stormwater Conveyance is a large

  4. Design Principles of a flywheel Regenerative Braking System (f-RBS) for Formula SAE type racecar and system testing on a Virtual Test Rig modeled on MSC ADAMS

    E-Print Network [OSTI]

    Pochiraju, Anirudh

    2012-08-31

    to these advantages, flywheels are being used for Energy storage in various applications some of which are: 1. Uninterrupted Power Supply (UPS) systems [5, 18]. 2. Grid energy systems like the Beacon Flywheel Power Storage Plant in Stephentown, New York [19]. 3... for Uninterrupted Power Supply (UPS) systems, grid power storage requirements and pulse power requirements. In comparison, the application of FES in the field of transportation has been more of a recent phenomenon. Safety issues with rotating steel flywheels...

  5. Theoretical and experimental study on regenerative rotary displacer Stirling engine

    SciTech Connect (OSTI)

    Raggi, L.; Katsuta, Masafumi; Isshiki, Naotsugu; Isshiki, Seita

    1997-12-31

    Recently a quite new type of hot air engine called rotary displacer engine, in which the displacer is a rotating disk enclosed in a cylinder, has been conceived and developed. The working gas, contained in a notch excavated in the disk, is heated and cooled alternately, on account of the heat transferred through the enclosing cylinder that is heated at one side and cooled at the opposite one. The gas temperature oscillations cause the pressure fluctuations that get out mechanical power acting on a power piston. In order to attempt to increase the performances for this kind of engine, the authors propose three different regeneration methods. The first one comprises two coaxial disks that, revolving in opposite ways, cause a temperature gradient on the cylinder wall and a regenerative axial heat conduction through fins shaped on the cylinder inner wall. The other two methods are based on the heat transferred by a proper closed circuit that in one case has a circulating liquid inside and in the other one is formed by several heat pipes working each one for different temperatures. An engine based on the first principle, the Regenerative Tandem Contra-Rotary Displacer Stirling Engine, has been realized and experimented. In this paper experimental results with and without regeneration are reported comparatively with a detailed description of the unity. A basic explanation of the working principle of this engine and a theoretical analysis investigating the main influential parameters for the regenerative effect are done. This new rotating displacer Stirling engines, for their simplicity, are expected to attain high rotational speed especially for applications as demonstration and hobby unities.

  6. Propellant feed system of a regeneratively cooled scramjet

    SciTech Connect (OSTI)

    Kanda, Takeshi; Masuya, Goro; Wakamatsu, Yoshio )

    1991-04-01

    An expander cycle for an airframe-integrated hydrogen-fueled scramjet is analyzed to study regenerative cooling characteristics and overall specific impulse. Below Mach 10, the specific impulse and thrust coincide with the reference values. At Mach numbers above 10, a reduction of the specific impulse occurs due to the coolant flow rate requirement, which is accompanied by an increase of thrust. It is shown that the thrust may be increased by injecting excess fuel into the combustor to compensate for the decrease of the specific impulse. 9 refs.

  7. Evaluation of driver braking performance to an unexpected object in the roadway 

    E-Print Network [OSTI]

    Picha, Dale Louis

    1994-01-01

    ) in 1940, incorporates two components into geometric design, a perception-response time (PRT) component and a braking distance component. Because of the importance of sight distance on highways, previous research has questioned the assumptions of these two...

  8. Injection Timing Effects on Brake Fuel Conversion Efficiency and Engine System's Respones 

    E-Print Network [OSTI]

    McLean, James Elliott

    2011-10-21

    Societal concerns on combustion-based fuel consumption are ever-increasing. With respect to internal combustion engines, this translates to a need to increase brake fuel conversion efficiency (BFCE). Diesel engines are a relatively efficient...

  9. A study of factors affecting foot movement time in a braking maneuver 

    E-Print Network [OSTI]

    Berman, Andrea Helene

    1994-01-01

    The nature of foot movement time (MT) in an actual braking maneuver and in a stationary vehicle was investigated regarding the effects of age and gender of the driver and nature of the stimulus to which the driver was ...

  10. Combined fast valving and braking resistor application to improve transient stability 

    E-Print Network [OSTI]

    Chen, Jen-Yeu Thomas

    1982-01-01

    COMBINED FAST VALVING AND BRAKING RESISTOR APPLICATION TO IMPROVE TRANSIENT STABILITY A Thesis by Submitted to the Graduate College of' Texas A&M University in Partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May... 1982 Major Subjecta Electrical Engineering COMBINED FAST VALVING AND BRAKING RESISTOR APPLICATION TO IMPROVE TRANSIENT STABILITY A Thesis by Approved as to style and content by& herman oY mm ee ad of' De tment Member May 1982 ABSTRACT...

  11. Performance Analysis of Markov Regenerative Reward Mikl'os Telek, Andr'as Pfening

    E-Print Network [OSTI]

    Telek, Miklós

    is based on the Markov renewal theory [5] and therefore the applica­ tion of MRGPs in stochastic modelingPerformance Analysis of Markov Regenerative Reward Models ? Mikl'os Telek, Andr'as Pfening the performance of a finite queueing system is analyzed. Key words: Stochastic reward models, Markov regenerative

  12. Improving the efficiency and availability analysis of a modified reheat regenerative Rankine cycle

    SciTech Connect (OSTI)

    Bassily, A.M.

    1999-07-01

    Reheating in a reheat regenerative steam power cycle increases efficiency by increasing the average temperature of heat reception, but also increases the irreversibility of feed water heaters by raising the temperature of the superheated steam used for the regenerative process. This paper introduces some modifications to the regular reheat regenerative steam power cycle that reduce the irreversibility of the regenerative process. An availability analysis of the modified cycle and the regular reheat regenerative cycle as well as a comparison study between both cycles is done. The results indicate that a gain in energy efficiency of up to 2.5% as the steam generator pressure varies is obtained when applying such modifications at the same conditions of pressure, temperature's number of reheating stages, and feed water heaters. The availability analysis showed that such increase in efficiency is due to the reduction of the irreversibility of the regeneration process of the modified cycle.

  13. Braking index of isolated uniformly rotating magnetized pulsars

    E-Print Network [OSTI]

    Hamil, Oliver; Urbanec, Martin; Urbancova, Gabriela

    2015-01-01

    Isolated pulsars are rotating neutron stars with accurately measured angular velocities $\\Omega$, and their time derivatives which show unambiguously that the pulsars are slowing down. Although the exact mechanism of the spin-down is a question of debate in detail, the commonly accepted view is that it arises through emission of magnetic dipole radiation (MDR) from a rotating magnetized body. Other processes, including the emission of gravitational radiation, and of relativistic particles (pulsar wind), are also being considered. The calculated energy loss by a rotating pulsar with a constant moment of inertia is assumed proportional to a model dependent power of $\\Omega$. This relation leads to the power law $\\dot{\\Omega}$ = -K $\\Omega^{\\rm n}$ where $n$ is called the braking index. The MDR model predicts $n$ exactly equal to 3. Selected observations of isolated pulsars provide rather precise values of $n$, individually accurate to a few percent or better, in the range 1$ <$ n $ < $ 2.8, which is consi...

  14. Performance of Networked Control Systems under Sporadic Feedback

    E-Print Network [OSTI]

    Lemmon, Michael

    Regenerative Braking power inverter storage Micro-Grid Renewable Generation PHEV Smart Grid - Distributed

  15. Journal of Power Sources 210 (2012) 286291 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Arnold, Craig B.

    2012-01-01

    solar and wind sys- tems and regenerative braking in cars. New battery chemistries and control systems

  16. 194 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 56, NO. 1, JANUARY 2009 PWM Method to Eliminate Power Sources in a

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    unidirectional if the machine is not using regenerative braking. In this paper, these nine power supplies

  17. n CAPABILITY STATEMENT Centre for Sustainable

    E-Print Network [OSTI]

    Liley, David

    , control systems, battery charging, battery capacity indication, regenerative braking. Modelling of wear

  18. Computation of Optimal Current References for Flux-weakening of Multi-Phase Synchronous

    E-Print Network [OSTI]

    Boyer, Edmond

    the start-stop concept, a regenerative braking and torque assistance. The torque boost makes possible

  19. SOC/SIP for energy management Bernard COURTOIS

    E-Print Network [OSTI]

    Boyer, Edmond

    consumption with stop-start, with the use of electrical power for acceleration, with regenerative braking

  20. Performance analysis of reciprocating regenerative magnetic heat pumping. Final report

    SciTech Connect (OSTI)

    Chen, D.T. [Oak Ridge Associated Universities, Inc., TN (United States); Murphy, R.W.; Mei, V.C.; Chen, F.C.; Lue, J.W.; Lubell, M.S. [Oak Ridge National Lab., TN (United States)

    1994-02-01

    Transient flow phenomena in the regenerator tube of reciprocating magnetic heat pumps have been studied numerically and experimentally. In the numerical study, two approaches were taken: (1) solving the energy balance equations for fluid through a porous bed directly and (2) solving the Navier-Stokes equations with a buoyancy force term in the momentum equation. A flow thermal mixing problem was found in both approaches because of the piston-like motion of the regenerator tube that hinders the development of the temperature. The numerical study results show that a 45 K temperature span can be reached in 10 minutes of charge time through the use of a 7-Tesla magnetic field. Using the second numerical approach, temperature stratification in the regenerator fluid column was clearly indicated through temperature rasters. The study also calculates regenerator efficiency and energy delivery rates when heating load and cooling load are applied. Piecewise variation of the regenerator tube moving speed has been used in the present numerical study to control the mass flow rate, reduce thermal mixing of the flow and thus the regenerative losses. The gadolinium`s adiabatic temperature has been measured under 6.5 Tesla of magnet field and different of operating temperatures ranging from 285 K to 320 K. Three regenerative heat pumping tests have also been conducted based on the Reynolds number of the regenerator tube flow, namely Re=300, Re=450, and Re=750 without loads. Maximum temperature span are 12 & 11 K and 9 K for the case of Re=300, Re=450 and Re=750, respectively. Experimental data are in good agreement with the numerical calculation results, and have been used to calibrate the numerical results and to develop a design database for reciprocating-type room-temperature magnetic heat pumps.

  1. Initial results using Eddy Current Brakes as Fast Turn-on, Programmable Physical Dampers for Haptic Rendering

    E-Print Network [OSTI]

    Hayward, Vincent

    Initial results using Eddy Current Brakes as Fast Turn-on, Programmable Physical Dampers for Haptic Machines McGill University, Montr´eal, Qu´ebec, Canada ABSTRACT We demonstrate the use of eddy current propose an alternate method to create damping in a haptic interface that uses eddy current brakes. 2 EDDY

  2. Energy-Saving Control of an Unstable Valve with a MR Brake QingHui Yuan and Perry Y. Li

    E-Print Network [OSTI]

    Li, Perry Y.

    as a brake does not imply heat reduction. In this paper, we propose a new type of actuator in which a dual lead to heat reduction. In [6], we use a dual-solenoid actuator and design a controller to minimizeEnergy-Saving Control of an Unstable Valve with a MR Brake QingHui Yuan and Perry Y. Li Abstract

  3. Cell Microenvironment Engineering and Monitoring for Tissue Engineering and Regenerative Medicine: The Recent Advances

    E-Print Network [OSTI]

    Barthes, Julien

    In tissue engineering and regenerative medicine, the conditions in the immediate vicinity of the cells have a direct effect on cells’ behaviour and subsequently on clinical outcomes. Physical, chemical, and biological ...

  4. REPORT on the TRUCK BRAKE LINING WORKSHOP and FLEET OPERATORS' SURVEY

    SciTech Connect (OSTI)

    Blau, P.J.

    2003-02-03

    The report summarizes what transpired during brake linings-related workshop held at the Fall 2003 meeting of the Technology and Maintenance Council (TMC) in Charlotte, NC. The title of the workshop was ''Developing a Useful Friction Material Rating System''. It was organized by a team consisting of Peter Blau (Oak Ridge National Laboratory), Jim Britell (National Highway Traffic Safety Administration), and Jim Lawrence (Motor and Equipment Manufacturers Association). The workshop was held under the auspices of TMC Task Force S6 (Chassis), chaired by Joseph Stianche (Sanderson Farms, Inc.). Six invited speakers during the morning session provided varied perspectives on testing and rating aftermarket automotive and truck brake linings. They were: James R. Clark, Chief Engineer, Foundation Brakes and Wheel Equipment, Dana Corporation, Spicer Heavy Axle and Brake Division; Charles W. Greening, Jr, President, Greening Test Labs; Tim Duncan, General Manager, Link Testing Services;Dennis J. McNichol, President, Dennis NationaLease; Jim Fajerski, Business Manager, OE Sales and Applications Engineering, Federal Mogul Corporation; and Peter J. Blau, Senior Materials Development Engineer, Oak Ridge National Laboratory. The afternoon break-out sessions addressed nine questions concerning such issues as: ''Should the federal government regulate aftermarket lining quality?''; ''How many operators use RP 628, and if so, what's good or bad about it?''; and ''Would there be any value to you of a vocation-specific rating system?'' The opinions of each discussion group, consisting of 7-9 participants, were reported and consolidated in summary findings on each question. Some questions produced a greater degree of agreement than others. In general, the industry seems eager for more information that would allow those who are responsible for maintaining truck brakes to make better, more informed choices on aftermarket linings. A written fleet operator survey was also conducted during the TMC meeting. Twenty-one responses were received, spanning fleet sizes between 12 and 170,000 vehicles. Responses are summarized in a series of tables separated into responses from small (100 or fewer powered vehicles), medium (101-1000 vehicles), and large fleets (>1000 vehicles). The vast majority of fleets do their own brake maintenance, relying primarily on experience and lining manufactures to select aftermarket linings. At least half of the responders are familiar to some extent with TMC Recommended Practice 628 on brake linings, but most do not use this source of test data as the sole criterion to select linings. Significant shortfalls in the applicability of TMC RP 628 to certain types of brake systems were noted.

  5. System for lubrication of a brake air compressor associated with a turbocharged internal combustion engine

    SciTech Connect (OSTI)

    Spencer, J.C.

    1992-10-13

    This patent describes a system for use with a vehicle which includes a turbocharged internal combustion engine having a lubricating system wherein lubricating oil from an engine oil reservoir is circulated within the engine and also to and from an associated brake system air compressor which supplies compressed air for operation of the vehicle air braking system. This patent describes improvement in passing supercharged air to an oil crankcase of the air compressor to cause lubricating oil to drain therefrom and return to the engine oil reservoir.

  6. Achieving Consistent Maximum Brake Torque with Varied Injection Timing in a DI Diesel Engine 

    E-Print Network [OSTI]

    Kroeger, Timothy H

    2013-09-19

    The brake torque of a direct-injection diesel engine is known to plateau over a range of injection timings. Injection timing affects the engine’s ignition delay and the fractions of fuel which burn in premixed and diffusion modes. Therefore...

  7. ORBITAL AND MASS RATIO EVOLUTION OF PROTOBINARIES DRIVEN BY MAGNETIC BRAKING

    SciTech Connect (OSTI)

    Zhao, Bo; Li, Zhi-Yun

    2013-01-20

    The majority of stars reside in multiple systems, especially binaries. The formation and early evolution of binaries is a longstanding problem in star formation that is not yet fully understood. In particular, how the magnetic field observed in star-forming cores shapes the binary characteristics remains relatively unexplored. We demonstrate numerically, using an MHD version of the ENZO AMR hydro code, that a magnetic field of the observed strength can drastically change two of the basic quantities that characterize a binary system: the orbital separation and mass ratio of the two components. Our calculations focus on the protostellar mass accretion phase, after a pair of stellar 'seeds' have already formed. We find that in dense cores magnetized to a realistic level, the angular momentum of the material accreted by the protobinary is greatly reduced by magnetic braking. Accretion of strongly braked material shrinks the protobinary separation by a large factor compared to the non-magnetic case. The magnetic braking also changes the evolution of the mass ratio of unequal-mass protobinaries by producing material of low specific angular momentum that accretes preferentially onto the more massive primary star rather than the secondary. This is in contrast with the preferential mass accretion onto the secondary previously found numerically for protobinaries accreting from an unmagnetized envelope, which tends to drive the mass ratio toward unity. In addition, the magnetic field greatly modifies the morphology and dynamics of the protobinary accretion flow. It suppresses the traditional circumstellar and circumbinary disks that feed the protobinary in the non-magnetic case; the binary is fed instead by a fast collapsing pseudodisk whose rotation is strongly braked. The magnetic braking-driven inward migration of binaries from their birth locations may be constrained by high-resolution observations of the orbital distribution of deeply embedded protobinaries, especially with ALMA and JVLA.

  8. Use of an auditory signal in a rear-end collision warning system: effects on braking force and reaction time 

    E-Print Network [OSTI]

    Hopkins, Jennifer Susan

    1995-01-01

    This simulator experiment is a preliminary study examining the effects of different auditory signals on braking force and reaction time in a rear-end collision warning system. A driving simulator was built in which subjects operated a computer...

  9. Featured Announcements

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergy Technologies |Feature Stories Three ways Ames

  10. Nonlinear analysis of time series of vibration data from a friction brake: SSA, PCA, and MFDFA

    E-Print Network [OSTI]

    Nikolay K. Vitanov; Norbert P. Hoffmann; Boris Wernitz

    2014-10-23

    We use the methodology of singular spectrum analysis (SSA), principal component analysis (PCA), and multi-fractal detrended fluctuation analysis (MFDFA), for investigating characteristics of vibration time series data from a friction brake. SSA and PCA are used to study the long time-scale characteristics of the time series. MFDFA is applied for investigating all time scales up to the smallest recorded one. It turns out that the majority of the long time-scale dynamics, that is presumably dominated by the structural dynamics of the brake system, is dominated by very few active dimensions only and can well be understood in terms of low dimensional chaotic attractors. The multi-fractal analysis shows that the fast dynamical processes originating in the friction interface are in turn truly multi-scale in nature.

  11. DOES MAGNETIC-FIELD-ROTATION MISALIGNMENT SOLVE THE MAGNETIC BRAKING CATASTROPHE IN PROTOSTELLAR DISK FORMATION?

    SciTech Connect (OSTI)

    Li Zhiyun [Astronomy Department, University of Virginia, Charlottesville, VA (United States); Krasnopolsky, Ruben; Shang, Hsien [Academia Sinica, Theoretical Institute for Advanced Research in Astrophysics, Taipei, Taiwan (China)

    2013-09-01

    Stars form in dense cores of molecular clouds that are observed to be significantly magnetized. In the simplest case of a laminar (non-turbulent) core with the magnetic field aligned with the rotation axis, both analytic considerations and numerical simulations have shown that the formation of a large, 10{sup 2} AU scale, rotationally supported protostellar disk is suppressed by magnetic braking in the ideal MHD limit for a realistic level of core magnetization. This theoretical difficulty in forming protostellar disks is termed the ''magnetic braking catastrophe''. A possible resolution to this problem, proposed by Hennebelle and Ciardi and Joos et al., is that misalignment between the magnetic field and rotation axis may weaken the magnetic braking enough to enable disk formation. We evaluate this possibility quantitatively through numerical simulations. We confirm the basic result of Joos et al. that the misalignment is indeed conducive to disk formation. In relatively weakly magnetized cores with dimensionless mass-to-flux ratio {approx}> 4, it enabled the formation of rotationally supported disks that would otherwise be suppressed if the magnetic field and rotation axis are aligned. For more strongly magnetized cores, disk formation remains suppressed, however, even for the maximum tilt angle of 90 Degree-Sign . If dense cores are as strongly magnetized as indicated by OH Zeeman observations (with a mean dimensionless mass-to-flux ratio {approx}2), it would be difficult for the misalignment alone to enable disk formation in the majority of them. We conclude that, while beneficial to disk formation, especially for the relatively weak field case, misalignment does not completely solve the problem of catastrophic magnetic braking in general.

  12. Semiactive Virtual Control Method for Robots with Regenerative Energy-Storing

    E-Print Network [OSTI]

    Simon, Dan

    Bogert et al. (2012), where simultaneous con- trol and energy regeneration are achieved for a hydraulic or hydraulic energy conversion, modulation and storage can be unified in a single approach. The frameworkSemiactive Virtual Control Method for Robots with Regenerative Energy-Storing Joints Hanz Richter

  13. Enhancing Low-Grade Thermal Energy Recovery in a Thermally Regenerative Ammonia Battery Using

    E-Print Network [OSTI]

    Enhancing Low-Grade Thermal Energy Recovery in a Thermally Regenerative Ammonia Battery Using of renewable energy that is carbon neutral and sustainable.[1] Low-grade thermal energy from either industrial processes or natural solar or geothermal pro- cesses becomes attractive as a possible energy source because

  14. Bone regenerative potential of mesenchymal stem cells on a micro-structured titanium processed by wire-type electric discharge machining

    E-Print Network [OSTI]

    Tamaki, Yukimichi; Miyazaki, Takashi

    2010-01-01

    A new strategy with bone tissue engineering by mesenchymal stem cell transplantation on titanium implant has been dawn attention. The surface scaffold properties of titanium surface play an important role in bone regenerative potential of cells. The surface topography and chemistry are postulated to be two major factors increasing the scaffold properties of titanium implants. This study aimed to evaluate the osteogenic gene expression of mesenchymal stem cells on titanium processed by wire-type electric discharge machining. Some amount of roughness and distinctive irregular features were observed on titanium processed by wire-type electric discharge machining. The thickness of suboxide layer was concomitantly grown during the processing. Since the thickness of oxide film and micro-topography allowed an improvement of mRNA expression of cells, titanium processed by wire-type electric discharge machining is a promising candidate for mesenchymal stem cell based functional restoration of implants.

  15. Probability of failure of the waste hoist brake system at the Waste Isolation Pilot Plant (WIPP)

    SciTech Connect (OSTI)

    Greenfield, M.A. [Univ. of California, Los Angeles, CA (United States); Sargent, T.J. [Univ. of Chicago, IL (United States)]|[Stanford Univ., CA (United States). Hoover Institution

    1998-01-01

    In its most recent report on the annual probability of failure of the waste hoist brake system at the Waste Isolation Pilot Plant (WIPP), the annual failure rate is calculated to be 1.3E({minus}7)(1/yr), rounded off from 1.32E({minus}7). A calculation by the Environmental Evaluation Group (EEG) produces a result that is about 4% higher, namely 1.37E({minus}7)(1/yr). The difference is due to a minor error in the US Department of Energy (DOE) calculations in the Westinghouse 1996 report. WIPP`s hoist safety relies on a braking system consisting of a number of components including two crucial valves. The failure rate of the system needs to be recalculated periodically to accommodate new information on component failure, changes in maintenance and inspection schedules, occasional incidents such as a hoist traveling out-of-control, either up or down, and changes in the design of the brake system. This report examines DOE`s last two reports on the redesigned waste hoist system. In its calculations, the DOE has accepted one EEG recommendation and is using more current information about the component failures rates, the Nonelectronic Parts Reliability Data (NPRD). However, the DOE calculations fail to include the data uncertainties which are described in detail in the NPRD reports. The US Nuclear Regulatory Commission recommended that a system evaluation include mean estimates of component failure rates and take into account the potential uncertainties that exist so that an estimate can be made on the confidence level to be ascribed to the quantitative results. EEG has made this suggestion previously and the DOE has indicated why it does not accept the NRC recommendation. Hence, this EEG report illustrates the importance of including data uncertainty using a simple statistical example.

  16. Solar tracker motor having a fixed caliper and a translating caliper each with an electromagnetic brake system

    DOE Patents [OSTI]

    Rau, Scott James

    2013-01-29

    Concepts and technologies described herein provide for an accurate and cost-effective method for rotating a solar array disk for tracking the movement of the sun. According to various aspects, a motor includes a fixed caliper and a translating caliper positioned adjacent to one another. Electromagnetically controlled brakes on the translating caliper grip the solar array disk while adjacent, but spaced apart, electromagnets on the fixed caliper and the translating caliper are energized to create an attractive force that pulls the translating caliper with the solar array disk toward the fixed caliper. After reaching the fixed caliper, brakes on the fixed caliper are engaged with the disk, brakes on the translating caliper are released from the disk, and the translating caliper is pushed back to the starting location where the process repeats until the desired rotation is completed.

  17. Radio frequency regenerative oscillations in monolithic high-Q/V heterostructured photonic crystal cavities

    SciTech Connect (OSTI)

    Yang, Jinghui E-mail: tg2342@columbia.edu; Gu, Tingyi E-mail: tg2342@columbia.edu; Zheng, Jiangjun; Wei Wong, Chee; Yu, Mingbin; Lo, Guo-Qiang; Kwong, Dim-Lee

    2014-02-10

    We report temporal and spectral domain observation of regenerative oscillation in monolithic silicon heterostructured photonic crystals cavities with high quality factor to mode volume ratios (Q/V). The results are interpreted by nonlinear coupled mode theory (CMT) tracking the dynamics of photon, free carrier population, and temperature variations. We experimentally demonstrate effective tuning of the radio frequency tones by laser-cavity detuning and laser power levels, confirmed by the CMT simulations with sensitive input parameters.

  18. Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    from regenerative braking, or with scarce power capacity for fast acceleration. The experimental HEV to accept energy from regenerative braking. For this reason, hybrid systems use an auxiliary energy system

  19. 614 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 53, NO. 2, APRIL 2006 Energy-Management System for a Hybrid Electric

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    with a poor ability to recover energy from a regenerative braking, or with a scarce power capacity for a fast batteries, are unable to accept energy from the regen- erative braking. For this reason, these vehicles may

  20. 1642 IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, VOL. 14, NO. 4, DECEMBER 2013 Minimal-Energy Driving Strategy for High-Speed

    E-Print Network [OSTI]

    Tong, Lang

    , including the extended speed range, energy efficiency, and regenerative braking. Based on this model, train the regenerative brake to feed back the kinetic energy, etc. On the other hand, a proper driving strategy can also

  1. EDITED BY CAROLINE ASH CREDITS(TOPTOBOTTOM):BURMANNETAL.;MATZELETAL.

    E-Print Network [OSTI]

    Leake, Mark C.

    , such as in regenerative braking in hybrid cars. For very small power requirements, capaci- tors have not been competitive

  2. ARES NW Power and Conservation Council Presentation

    E-Print Network [OSTI]

    Shortfall of power, due to high demand, energy supplied into the grid by regenerative braking of shuttle

  3. Hybrid: Braking

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center Home PageBlenderBusiness Case for E85CaliforniaCleanUNITEDNREL

  4. Hybrid: Braking

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center Home PageBlenderBusiness Case for E85CaliforniaCleanUNITEDNRELButton

  5. Uncertainty-Enabled Design of a Rocket Sled Track Switch Drs. Jordan E. Massad and Matthew R. Brake

    E-Print Network [OSTI]

    Uncertainty-Enabled Design of a Rocket Sled Track Switch Drs. Jordan E. Massad and Matthew R. Brake Sandia National Laboratories, New Mexico Rocket sled tracks provide a dynamically rich environment acceleration profile, the switch closes to complete a circuit for instrument activation. Preliminary tests

  6. CityCarControl : an electric vehicle drive-by-wire solution for distributed steering, braking and throttle control

    E-Print Network [OSTI]

    Brown, Thomas B., M. Eng. Massachusetts Institute of Technology

    2010-01-01

    In this paper, we propose CityCarControl, a system to manage the steering, braking, and throttle of a new class of intra-city electric vehicles. These vehicles have a focus on extreme light-weight and a small parking ...

  7. Energy-Saving Control of an Unstable Valve with a MR Brake QingHui Yuan and Perry Y. Li

    E-Print Network [OSTI]

    Li, Perry Y.

    Energy-Saving Control of an Unstable Valve with a MR Brake QingHui Yuan and Perry Y. Li Abstract controller is then developed to achieve position tracking and energy-saving. Simulation verifies that using. INTRODUCTION Energy-saving is an important issue in fluid power indus- try. The research of energy efficiency

  8. Monitoring System for Testing the Performance of an Electric Vehicle Using Ultracapacitors

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    , efficiency, state of charge, regenerative braking. 1. Introduction Ultracapacitors are a new technology, or fast charge during regenerative braking can be avoided with the help of ultracapacitors. Besides, ultracapacitors allow regenerative braking even when the batteries are fully charged. This paper describes

  9. DSP Based Ultracapacitor System for Hybrid-Electric Vehicles Juan W. Dixon

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    regenerative braking, or with scarce power capacity for fast acceleration. The ratings of the ultracapacitor, regenerative braking is disconnected from the main computer of the traction drive system, and the battery", "Regenerative Braking". 1. Introduction Throughout the years hybrid vehicles have proofed themselves the shorter

  10. MAGNETIC BRAKING FORMULATION FOR SUN-LIKE STARS: DEPENDENCE ON DIPOLE FIELD STRENGTH AND ROTATION RATE

    SciTech Connect (OSTI)

    Matt, Sean P.; Pinsonneault, Marc H.; Greene, Thomas P. E-mail: kmac@ucar.edu E-mail: thomas.p.greene@nasa.gov

    2012-08-01

    We use two-dimensional axisymmetric magnetohydrodynamic simulations to compute steady-state solutions for solar-like stellar winds from rotating stars with dipolar magnetic fields. Our parameter study includes 50 simulations covering a wide range of relative magnetic field strengths and rotation rates, extending from the slow- and approaching the fast-magnetic-rotator regimes. Using the simulations to compute the angular momentum loss, we derive a semi-analytic formulation for the external torque on the star that fits all of the simulations to a precision of a few percent. This formula provides a simple method for computing the magnetic braking of Sun-like stars due to magnetized stellar winds, which properly includes the dependence on the strength of the magnetic field, mass loss rate, stellar radius, surface gravity, and spin rate, and which is valid for both slow and fast rotators.

  11. A one-volt p-InP/n-CdSe regenerative photoelectrochemical cell

    SciTech Connect (OSTI)

    Ang, P.G.P.; Sammells, A.F.

    1983-08-01

    Photoelectrochemical (PEC) cells have the potential utility of being used for either the direct conversion of solar energy to electricity as in regenerative devices or to generate stored redox species which can later be electrochemically discharged in a suitable cell. This latter approach has been particularly intriguing over the last few years. However, although several photoelectrochemical storage cells have been discussed, it has become increasingly desirable to have a high-voltage (approx. =1 V) PEC cell, so that the storage cell with which it is associated has some hope of being competitive with presently available commercial batteries.

  12. 668 OPTICS LETTERS / Vol. 21, No. 9 / May 1, 1996 Generation of 18-fs, multiterawatt pulses by regenerative pulse

    E-Print Network [OSTI]

    Guo, Ting

    668 OPTICS LETTERS / Vol. 21, No. 9 / May 1, 1996 Generation of 18-fs, multiterawatt pulses by regenerative pulse shaping and chirped-pulse amplification C. P. J. Barty, T. Guo, C. Le Blanc, F. Raksi, C-limited, 18-fs pulses of 4.4-TW peak power are produced in a Ti:sapphire-based chirped-pulsed amplification

  13. A Preliminary Study of Energy Recovery in Vehicles by Using Regenerative Magnetic Shock Absorbers

    SciTech Connect (OSTI)

    R. B. Goldner; P. Zerigian; J. R. Hull

    2001-05-14

    Road vehicles can expend a significant amount of energy in undesirable vertical motions that are induced by road bumps, and much of that is dissipated in conventional shock absorbers as they dampen the vertical motions. Presented in this paper are some of the results of a study aimed at determining the effectiveness of efficiently transforming that energy into electrical power by using optimally designed regenerative electromagnetic shock absorbers. In turn, the electrical power can be used to recharge batteries or other efficient energy storage devices (e.g., flywheels) rather than be dissipated. The results of the study are encouraging - they suggest that a significant amount of the vertical motion energy can be recovered and stored.

  14. Regenerative Fuel Cells: Renewable Energy Storage Devices Based on Neutral Water Input

    SciTech Connect (OSTI)

    2010-09-01

    GRIDS Project: Proton Energy Systems is developing an energy storage device that converts water to hydrogen fuel when excess electricity is available, and then uses hydrogen to generate electricity when energy is needed. The system includes an electrolyzer, which generates and separates hydrogen and oxygen for storage, and a fuel cell which converts the hydrogen and oxygen back to electricity. Traditional systems use acidic membranes, and require expensive materials including platinum and titanium for key parts of the system. In contrast, Proton Energy Systems’ new system will use an inexpensive alkaline membrane and will contain only inexpensive metals such as nickel and stainless steel. If successful, Proton Energy Systems’ system will have similar performance to today’s regenerative fuel cell systems at a fraction of the cost, and can be used to store electricity on the electric grid.

  15. Regeneratively cooled coal combustor/gasifier with integral dry ash removal

    DOE Patents [OSTI]

    Beaufrere, A.H.

    1982-04-30

    A coal combustor/gasifier is disclosed which produces a low or medium combustion gas fired furnances or boilers. Two concentric shells define a combustion air flows to provide regenerative cooling of the inner shell for dry ash operation. A fuel flow and a combustion air flow having opposed swirls are mixed and burned in a mixing-combustion portion of the combustion volume and the ash laden combustion products flow with a residual swirl into an ash separation region. The ash is cooled below the fusion temperature and is moved to the wall by centrifugal force where it is entrained in the cool wall boundary layer. The boundary layer is stabilized against ash re-entrainment as it is moved to an ash removal annulus by a flow of air from the plenum through slots in the inner shell, and by suction on an ash removal skimmer slot.

  16. ACCEPTED AUTHORS' DRAFT, THE FINAL VERSION TO APPEAR IN THE IEEE/ASME TRANSACTIONS ON MECHATRONICS, VOL. 13, NO. 6, 669677, 2008. 1 Eddy Current Brakes for Haptic Interfaces

    E-Print Network [OSTI]

    Hayward, Vincent

    , VOL. 13, NO. 6, 669­677, 2008. 1 Eddy Current Brakes for Haptic Interfaces: Design, Identification describe the design of an eddy current brake for use as programmable viscous damper for haptic interfaces actuators for haptic interfaces. We overview the governing physical relationships, and describe design

  17. Extracellular matrix and growth factor engineering for controlled angiogenesis in regenerative medicine

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Martino, Mikael M.; Brkic, Sime; Bovo, Emmanuela; Burger, Maximilian; Schaefer, Dirk J.; Wolff, Thomas; Gurke, Lorenz; Briquez, Priscilla S.; Larsson, Hans M.; Gianni-Barrera, Roberto; et al

    2015-04-01

    In this study, blood vessel growth plays a key role in regenerative medicine, both to restore blood supply to ischemic tissues and to ensure rapid vascularization of clinical-size tissue-engineered grafts. For example, vascular endothelial growth factor (VEGF) is the master regulator of physiological blood vessel growth and is one of the main molecular targets of therapeutic angiogenesis approaches. However, angiogenesis is a complex process and there is a need to develop rational therapeutic strategies based on a firm understanding of basic vascular biology principles, as evidenced by the disappointing results of initial clinical trials of angiogenic factor delivery. In particular,more »the spatial localization of angiogenic signals in the extracellular matrix (ECM) is crucial to ensure the proper assembly and maturation of new vascular structures. Here, we discuss the therapeutic implications of matrix interactions of angiogenic factors, with a special emphasis on VEGF, as well as provide an overview of current approaches, based on protein and biomaterial engineering that mimic the regulatory functions of ECM to optimize the signaling microenvironment of vascular growth factors.« less

  18. Regeneratively cooled coal combustor/gasifier with integral dry ash removal

    DOE Patents [OSTI]

    Beaufrere, Albert H. (Huntington, NY)

    1983-10-04

    A coal combustor/gasifier is disclosed which produces a low or medium combustion gas for further combustion in modified oil or gas fired furnaces or boilers. Two concentric shells define a combustion volume within the inner shell and a plenum between them through which combustion air flows to provide regenerative cooling of the inner shell for dry ash operation. A fuel flow and a combustion air flow having opposed swirls are mixed and burned in a mixing-combustion portion of the combustion volume and the ash laden combustion products flow with a residual swirl into an ash separation region. The ash is cooled below the fusion temperature and is moved to the wall by centrifugal force where it is entrained in the cool wall boundary layer. The boundary layer is stabilized against ash re-entrainment as it is moved to an ash removal annulus by a flow of air from the plenum through slots in the inner shell, and by suction on an ash removal skimmer slot.

  19. DVU Featured Training & Events ...

    Energy Savers [EERE]

    Featured Training & Events Form Please complete this form in its entirety and email to AskTheDvu@hq.doe.gov 1. Course Title: 2. Course StartEnd Date: 3. StartEnd Time (Time zone...

  20. features Utility Generator

    E-Print Network [OSTI]

    Chang, Shih-Fu

    #12;#12;#12;#12;features function utility Training Pool Utility Generator Per-frame function content utility classes utility classes utility Tree Decision Generator Module Utility Clustering Adaptive

  1. Hopper Featured Announcements

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

    Announcements Hopper Featured Announcements Hopper OS upgrade and new SW set to default next Wed, Feb 27 February 21, 2013 by Helen He | 0 Comments 1) There will be a scheduled...

  2. ZEBRA plus ultracapacitors: A good match for energy efficient EVs Juan Dixon, Micah Ortzar, Eduardo Arcos and Ian Nakashima.

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    to be improved for fast acceleration and good regenerative braking. With this purpose in mind, an ultra capacitor of batteries show reduced acceleration and reduced regenerative braking capability. One example of this kind be observed, the ZEBRA does not have a good specific power for braking and acceleration [2]. To improve

  3. Report on Fire Event Originated by Ultracapacitors in an Experimental Electric Vehicle

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    and sudden battery discharge during acceleration, or fast charge during regenerative braking can be avoided with the help of ultracapacitors. Besides, ultracapacitors allow regenerative braking even when the batteries (acceleration and regeneration during braking). The Ultracapacitor Bank and Battery Pack were connected using

  4. Investigation on the two-stage active magnetic regenerative refrigerator for liquefaction of hydrogen

    SciTech Connect (OSTI)

    Park, Inmyong; Park, Jiho; Jeong, Sangkwon; Kim, Youngkwon

    2014-01-29

    An active magnetic regenerative refrigerator (AMRR) is expected to be useful for hydrogen liquefaction due to its inherent high thermodynamic efficiency. Because the temperature of the cold end of the refrigerator has to be approximately liquid temperature, a large temperature span of the active magnetic regenerator (AMR) is indispensable when the heat sink temperature is liquid nitrogen temperature or higher. Since magnetic refrigerants are only effective in the vicinity of their own transition temperatures, which limit the temperature span of the AMR, an innovative structure is needed to increase the temperature span. The AMR must be a layered structure and the thermophysical matching of magnetic field and flow convection effects is very important. In order to design an AMR for liquefaction of hydrogen, the implementation of multi-layered AMR with different magnetic refrigerants is explored with multi-staging. In this paper, the performance of the multi-layered AMR using four rare-earth compounds (GdNi{sub 2}, Gd{sub 0.1}Dy{sub 0.9}Ni{sub 2}, Dy{sub 0.85}Er{sub 0.15}Al{sub 2}, Dy{sub 0.5}Er{sub 0.5}Al{sub 2}) is investigated. The experimental apparatus includes two-stage active magnetic regenerator containing two different magnetic refrigerants each. A liquid nitrogen reservoir connected to the warm end of the AMR maintains the temperature of the warm end around 77 K. High-pressure helium gas is employed as a heat transfer fluid in the AMR and the maximum magnetic field of 4 T is supplied by the low temperature superconducting (LTS) magnet. The temperature span with the variation of parameters such as phase difference between magnetic field and mass flow rate of magnetic refrigerants in AMR is investigated. The maximum temperature span in the experiment is recorded as 50 K and several performance issues have been discussed in this paper.

  5. Regenerative fuel cells for High Altitude Long Endurance Solar Powered Aircraft

    SciTech Connect (OSTI)

    Mitlitsky, F.; Colella, N.J.; Myers, B. [Lawrence Livermore National Lab., CA (United States); Anderson, C.J. [Aero Vironment, Inc., Monrovia, CA (United States)

    1993-06-02

    High Altitude Long Endurance (HALE) unmanned missions appear to be feasible using a lightweight, high efficiency, span-loaded, Solar Powered Aircraft (SPA) which includes a Regenerative Fuel Cell (RFC) system and novel tankage for energy storage. An existing flightworthy electric powered flying wing design was modified to incorporate present and near-term technologies in energy storage, power electronics, aerodynamics, and guidance and control in order to design philosophy was to work with vendors to identify affordable near-term technological opportunities that could be applied to existing designs in order to reduce weight, increase reliability, and maintain adequate efficiency of components for delivery within 18 months. The energy storage subsystem for a HALE SPA is a key driver for the entire vehicle because it can represent up to half of the vehicle weight and most missions of interest require the specific energy to be considerably higher than 200 W-hr/kg for many cycles. This stringent specific energy requirement precludes the use of rechargeable batteries or flywheels and suggests examination of various RFC designs. An RFC system using lightweight tankage, a single fuel cell (FC) stack, and a single electrolyzer (EC) stack separated by the length of a spar segment (up to 39 ft), has specific energy of {approximately}300 W-hr/kg with 45% efficiency, which is adequate for HALE SPA requirements. However, this design has complexity and weight penalties associated with thermal management, electrical wiring, plumbing, and structural weight. A more elegant solution is to use unitized RFC stacks (reversible stacks that act as both FCs and ECs) because these systems have superior specific energy, scale to smaller systems more favorably, and have intrinsically simpler thermal management.

  6. Finite element analysis of the effect of up-armouring on the off-road braking and sharp-turn performance

    E-Print Network [OSTI]

    Grujicic, Mica

    Finite element analysis of the effect of up-armouring on the off-road braking and sharp-mobility multi-purpose wheeled vehicle, off-road vehicle performance, finite element modelling and simulations revision for publication on 15 June 2009. DOI: 10.1243/09544070JAUTO1187 Abstract: A comprehensive finite

  7. Implementation and Evaluation of an Ultracapacitor-Based Auxiliary Energy System for Electric Vehicles

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    (W/kg) for acceleration, and power reversal capability for regenerative braking [3, 4]. Most hybrid regenerative braking capability and better efficiency. These two energy storage devices can be connected System" (AES). The MES provides extended driving range and the AES good acceleration and regenerative

  8. An analysis of the annual probability of failure of the waste hoist brake system at the Waste Isolation Pilot Plant (WIPP)

    SciTech Connect (OSTI)

    Greenfield, M.A. [Univ. of California, Los Angeles, CA (United States); Sargent, T.J.

    1995-11-01

    The Environmental Evaluation Group (EEG) previously analyzed the probability of a catastrophic accident in the waste hoist of the Waste Isolation Pilot Plant (WIPP) and published the results in Greenfield (1990; EEG-44) and Greenfield and Sargent (1993; EEG-53). The most significant safety element in the waste hoist is the hydraulic brake system, whose possible failure was identified in these studies as the most important contributor in accident scenarios. Westinghouse Electric Corporation, Waste Isolation Division has calculated the probability of an accident involving the brake system based on studies utilizing extensive fault tree analyses. This analysis conducted for the U.S. Department of Energy (DOE) used point estimates to describe the probability of failure and includes failure rates for the various components comprising the brake system. An additional controlling factor in the DOE calculations is the mode of operation of the brake system. This factor enters for the following reason. The basic failure rate per annum of any individual element is called the Event Probability (EP), and is expressed as the probability of failure per annum. The EP in turn is the product of two factors. One is the {open_quotes}reported{close_quotes} failure rate, usually expressed as the probability of failure per hour and the other is the expected number of hours that the element is in use, called the {open_quotes}mission time{close_quotes}. In many instances the {open_quotes}mission time{close_quotes} will be the number of operating hours of the brake system per annum. However since the operation of the waste hoist system includes regular {open_quotes}reoperational check{close_quotes} tests, the {open_quotes}mission time{close_quotes} for standby components is reduced in accordance with the specifics of the operational time table.

  9. Consulting Services Featured Companies

    E-Print Network [OSTI]

    Park, Byungwoo

    industry. These featured patents are promising in the global intellectual property marketplace. Scientist Profile Scientists who have been involved in the energy industry are interviewed by REGI to share in the renewable energy industry. Home » Key Scientific Articles The effect of a blocking layer on the photovoltaic

  10. Polar-Molecule-Dominated Electrorheological Fluids Featuring High Yield Stresses

    E-Print Network [OSTI]

    Zexian, Cao

    , brakes and shock absorbers, and many novel uses such as in accurate polishing, robotics, haptic Laboratory for Condensed Matter Physics, Institute of Physics Chinese Academy of Sciences, Beijing 100190 (P

  11. 2009 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONe β+-Decay EvaluatedThe6 Feature2007809

  12. 2010 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONe β+-Decay EvaluatedThe6search for09W0 Feature

  13. 2012 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONe β+-DecayUpgrade P.July 31,2 Feature Stories

  14. 2013 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril 30, 2013 9:30 am - 2:003 Audit33 Feature

  15. 2006 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONe β+-Decay EvaluatedThe6 Feature Stories The

  16. 2007 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONe β+-Decay EvaluatedThe6 Feature StoriesList7

  17. 2008 Feature Stories | NREL

    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 RoomPreservationBio-InspiredAtmosphericdevicesPPONe β+-Decay EvaluatedThe6 Feature2007 News7A74 FR8

  18. FED reactor engineering features

    SciTech Connect (OSTI)

    Sager, P.H.; Brown, T.G.; Fuller, G.M.; Smith, G.E.

    1982-01-01

    The Fusion Engineering Device (FED) Baseline design incorporates a number of features which were selected to enhance its maintainability, as well as limit cost and achieve reliable operation. An installation of ten TF coils and ten torus sectors was selected on the basis of plasma chamber segmentation studies and TF coil cost tradeoff studies, permitting removal of a torus sector with a single radial motion. The design also features a shield sector support spool which provides a plasma chamber vacuum boundary and access to the shield sectors. The vacuum seals are made at the outboard face of the torus so that they can be readily cut and rewelded. A pumped limiter provides plasma edge definition and impurity control. Ten individual blades are inserted through the shield sector in an arrangement that permits replacement without sector removal. ICRH is used for plasma bulk heating. Two EF coils, which are located inside the TF coil bore, are segmented so that they can be removed if necessary. The removal of the superconducting lower outboard EF coil, which is trapped under the TF coil assembly, presents a problem; consideration is being given to increasing its diameter and relocating it so that it can be lifted up around the TF coils.

  19. We Brake for Mars Hi! My name is Mike Meacham. I'm an engineer here at the Jet Propulsion Laboratory and

    E-Print Network [OSTI]

    Waliser, Duane E.

    We Brake for Mars Hi! My name is Mike Meacham. I'm an engineer here at the Jet Propulsion a really big parachute. To make these large parachutes you have to test them before you go. You need a way've got to test big here on Earth. You got to be a little crazy sometimes if you want to do crazy things

  20. Saving Fuel, Reducing Emissions

    E-Print Network [OSTI]

    Kammen, Daniel M.; Arons, Samuel M.; Lemoine, Derek M.; Hummel, Holmes

    2009-01-01

    regenerative braking, as do Saving Fuel, Reducing Emissionsconditions, the expected savings in fuel costs are notis whether the fuel cost savings over the lifetime of the

  1. News Features | ornl.gov

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

    Features News Features 1-10 of 18 Results Prev 12 Next Shape-shifting plastic May 20, 2015 - Not all plastics are created equal. Malleable thermoplastics can be easily melted and...

  2. Third-Party Evaluation of Petro Tex Hydrocarbons, LLC, ReGen Lubricating Oil Re-refining Process

    SciTech Connect (OSTI)

    Compere, A L; Griffith, William {Bill} L

    2009-04-01

    This report presents an assessment of market, energy impact, and utility of the PetroTex Hydrocarbons, LLC., ReGen process for re-refining used lubricating oil to produce Group I, II, and III base oils, diesel fuel, and asphalt. PetroTex Hydrocarbons, LLC., has performed extensive pilot scale evaluations, computer simulations, and market studies of this process and is presently evaluating construction of a 23 million gallon per year industrial-scale plant. PetroTex has obtained a 30 acre site in the Texas Industries RailPark in Midlothian Texas. The environmental and civil engineering assessments of the site are completed, and the company has been granted a special use permit from the City of Midlothian and air emissions permits for the Texas Commission on Environmental Quality.

  3. An analytical approach to multi-cylinder regenerative machines with application to 3-cylinder heat-aided Stirling heat pump

    SciTech Connect (OSTI)

    Yagyu, Sumio; Fujishima, Ichiro; Corey, J.; Isshiki, Naotsugu

    1996-12-31

    This paper describes a method for analysis and optimization of multi-cylinder regenerative machines. The authors have devised this method in a project at KUBOTA to develop an improved gas engine-driven heat pump using both shaft power and exhaust heat sources. Based on combinations of included Stirling cycles, this analytical approach allows use of well-established and validated Stirling simulation models to optimize partial systems. The technique further provides a method of integrating such optimal partial-system Stirling cycles into a complex combination system. It is shown that this remains an optimum solution for the three-cylinder heat-assisted heat pump case. Results from hardware tests of the main Stirling heat pump cycle (2-cylinders) are given and compared with analytical expectations using Sage simulation code. This is extended to validate Sage modeling of 3-cylinder machines.

  4. Micropower chemical fuel-to-electric conversion : a "regenerative flip" hydrogen concentration cell promising near carnot efficiency.

    SciTech Connect (OSTI)

    Wally, Karl

    2006-05-01

    Although battery technology is relatively mature, power sources continue to impose serious limitations for small, portable, mobile, or remote applications. A potentially attractive alternative to batteries is chemical fuel-to-electric conversion. Chemical fuels have volumetric energy densities 4 to 10 times those of batteries. However, realizing this advantage requires efficient chemical fuel-to-electric conversion. Direct electrochemical conversion would be the ideal, but, for most fuels, is generally not within the state-of-the-science. Next best, chemical-to-thermal-to-electric conversion can be attractive if efficiencies can be kept high. This small investigative project was an exploration into the feasibility of a novel hybrid (i.e., thermal-electrochemical) micropower converter of high theoretical performance whose demonstration was thought to be within near-term reach. The system is comprised of a hydrogen concentration electrochemical cell with physically identical hydrogen electrodes as anode and cathode, with each electrode connected to physically identical hydride beds each containing the same low-enthalpy-of-formation metal hydride. In operation, electrical power is generated by a hydrogen concentration differential across the electrochemical cell. This differential is established via coordinated heating and passive cooling of the corresponding hydride source and sink. Heating is provided by the exothermic combustion (i.e., either flame combustion or catalytic combustion) of a chemical fuel. Upon hydride source depletion, the role of source and sink are reversed, heating and cooling reversed, electrodes commutatively reversed, cell operation reversed, while power delivery continues unchanged. This 'regenerative flip' of source and sink hydride beds can be cycled continuously until all available heating fuel is consumed. Electricity is efficiently generated electrochemically, but hydrogen is not consumed, rather the hydrogen is regeneratively cycled as an electrochemical 'working fluid'.

  5. The Catalog View Feature dataset

    E-Print Network [OSTI]

    The Catalog View Feature dataset Hydrography Geometric network HYDRO_NET Polygon feature class defines by FIPS 103, next six digits is a randomly assigned sequential number unique within a CatalogingSeep FCode 485 Water IntakeOutflow Resolution Resolution FCode 48500 Water IntakeOutflow FCode 487 Waterfall

  6. FEATURE SELECTION AND CLASSIFICATION OF

    E-Print Network [OSTI]

    Kuncheva, Ludmila I.

    in the veterinary domain is important with regard to agriculture, the health sector and the economy, various feature selection techniques were applied and compared in this study in order to select a reducedFEATURE SELECTION AND CLASSIFICATION OF NON-TRADITIONAL DATA. EXAMPLES FROM VETERINARY MEDICINE Zo

  7. Regenerative amplification of femtosecond pulses: Design and construction of a sub-100fs, {mu}J laser system

    SciTech Connect (OSTI)

    Schumacher, A.B. |

    1996-10-01

    Femtosecond lasers are a powerful tool for a wealth of applications in physics, chemistry and biology. In most cases, however, their use is fundamentally restricted to a rather narrow spectral range. This thesis deals with the construction and characterization of a femtosecond light source for spectroscopic applications which overcomes that restriction. It is demonstrated how the output of a continuously pumped Ti:sapphire femtosecond oscillator is amplified to the {mu}J level, while the pulse duration remains below 100fs. A combination of continuous pumping, acousto-optic switching and Ti:Al{sub 2}O{sub 3} as a gain medium allows amplification at high repetition rates. By focusing the high energy pulses into a sapphire crystal, a broad-band continuum can be generated, extended in wavelengths over several hundred nanometers. To accomplish amplification of three orders of magnitude while maintaining the pulse length, a regenerative multipass amplifier system was built. The thesis describes theoretical design, realization and characterization of the system. Theoretical calculations and preliminary measurements were carried out and allow a critical evaluation of the final performance.

  8. Regenerative Amplification of Femtosecond Pulses: Design andConstruction of a sub-100fs, muon J Laser System

    SciTech Connect (OSTI)

    Schumacher, Andreas B.

    1996-10-01

    Femtosecond lasers are a powerful tool for a wealth of applications in physics, chemistry and biology. In most cases, however, their use is fundamentally restricted to a rather narrow spectral range. This thesis deals with the construction and characterization of a femtosecond light source for spectroscopic applications which overcomes that restriction. It is demonstrated how the output of a continuously pumped Ti:sapphire femtosecond oscillator is amplified to the {mu}J level,while the pulse duration remains below 100 fs. A combination of continuous pumping, acousto-optic switching and Ti:Al{sub 2}O{sub 3} as a gain medium allows amplification at high repetition rates. By focusing the high energy pulses into a sapphire crystal, a broad-band continuum can be generated, extended in wavelengths over several hundred nanometers. To accomplish amplification of three orders of magnitude while maintaining the pulse length, a regenerative multipass amplifier system was built. The thesis describes theoretical design, realization and characterization of the system. Theoretical calculations and preliminary measurements were carried out and allow a critical evaluation of the final performance.

  9. HOGgles: Visualizing Object Detection Features

    E-Print Network [OSTI]

    Vondrick, Carl Martin

    We introduce algorithms to visualize feature spaces used by object detectors. The tools in this paper allow a human to put on 'HOG goggles' and perceive the visual world as a HOG based object detector sees it. We found ...

  10. Nature Climate Change features Los

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

    Nature Climate Change features Los Alamos forest research February 27, 2013 New print edition of journal tags tree-stress project for cover story LOS ALAMOS, N.M., Feb. 27,...

  11. Parametric Feature Detection CUCS02895

    E-Print Network [OSTI]

    , efficient search, feature detection, parameter estimation, step edges, roof edges, corners, lines, discs. The concepts of parameter reduction by normalization, dimension reduction, pattern rejection, and efficient search are employed to achieve high efficiency. Detectors have been implemented for five specific

  12. ARM - Features and Releases Archive

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae2Gathering andNovember 16, 2015CenterFeaturesFeatures

  13. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientific Userflow phenomena inSciTechFeatureFeature

  14. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientific Userflow phenomenaFeature StoriesFeature

  15. NIF featured on BBC "Horizon"

    SciTech Connect (OSTI)

    Brian Cox

    2010-01-12

    The National Ignition Facility, the world's largest laser system, located at Lawrence Livermore National Laboratory, was featured in the BBC broadcast "Horizon" hosted by physicist Brian Cox. Here is the NIF portion of the program, which was entitled "Can We Make A Star On Earth?" This video is used with the express permission of the BBC.

  16. FEATURE ARTICLES Group Decision Making

    E-Print Network [OSTI]

    FEATURE ARTICLES Group Decision Making in Honey Bee Swarms When 10,000 bees go house hunting, how a neighboring colony. A striking example of decision mak- ing by an animal group is the choice of a nesting site paper on house hunting by honey bees. Lindauer was then a postdtx:toral stu- dent at the University

  17. NIF featured on BBC "Horizon"

    ScienceCinema (OSTI)

    Brian Cox

    2010-09-01

    The National Ignition Facility, the world's largest laser system, located at Lawrence Livermore National Laboratory, was featured in the BBC broadcast "Horizon" hosted by physicist Brian Cox. Here is the NIF portion of the program, which was entitled "Can We Make A Star On Earth?" This video is used with the express permission of the BBC.

  18. Functionally distinct subsets of lineage-biased multipotent progenitors control blood production in normal and regenerative condition

    E-Print Network [OSTI]

    Pietras, Eric M.; Reynaud, Damien; Kang, Yoon-A; Carlin, Daniel; Calero-Nieto, Fernando J.; Leavitt, Andrew D.; Stuart, Joshua M.; Göttgens, Berthold; Passegué, Emmanuelle

    2015-01-01

    , while MPP3 signature was enriched for myeloid differentiation genes and MPP2 signature for genes related to hemostasis. Consistently, MPP2 showed features of an active MegE transcription program, with high expression levels of Gfi1b, Gata1 and Fog1...

  19. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvan Racah861 ANNUAL|FacilityAboutHeatFe(A) Fe(B)Feature

  20. Features | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    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 NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReport for the t-) S/,,5 'aExecutive Positions |EnergyFeatures |

  1. Feature Stories | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergy Technologies |Feature Stories Three ways Ames

  2. Featured Webinars | 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 LIST OFAMERICA'SHeavy ElectricalsFTL Solar Jump to: navigation, searchFalckFeatured

  3. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientific Userflow phenomena inSciTechFeature

  4. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientific Userflow phenomenaFeature Stories Topic -

  5. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientific Userflow phenomenaFeature Stories Topic

  6. Feature Stories | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientific Userflow phenomenaFeature Stories

  7. GM-Ford-Chrysler: IFR Consolidated Application Feature | Department...

    Office of Environmental Management (EM)

    Consolidated Application Feature GM-Ford-Chrysler: IFR Consolidated Application Feature IFR Consolidated Application Feature GM-Ford-Chrysler: IFR Consolidated Application Feature...

  8. @ work' video segment features Robotic Software Engineer

    ScienceCinema (OSTI)

    Idaho National Laboratory

    2010-01-08

    @ work highlights Idaho National Laboratory employees and the jobs they perform.This segment features Robotic Software Engineer Miles Walton.

  9. Facial Feature Extraction Using a Probabilistic Mustafa Berkay Yilmaza

    E-Print Network [OSTI]

    Erdogan, Hakan

    approaches in facial feature extraction accuracy. Keywords: facial feature extraction, probabilistic method feature extraction methods in the literature Facial feature extraction from a face image has beenFacial Feature Extraction Using a Probabilistic Approach Mustafa Berkay Yilmaza , Hakan Erdogana

  10. Abstract Features in Feature Modeling Thomas Thum, Christian Kastner, Sebastian Erdweg, and Norbert Siegmund

    E-Print Network [OSTI]

    Kaestner, Christian

    , feature modeling, feature model, automated analyses. I. INTRODUCTION A software product line is a set--A software product line is a set of program variants, typically generated from a common code base. Feature models describe variability in product lines by documenting features and their valid combinations

  11. Flexible feature interface for multimedia sources

    DOE Patents [OSTI]

    Coffland, Douglas R. (Livermore, CA)

    2009-06-09

    A flexible feature interface for multimedia sources system that includes a single interface for the addition of features and functions to multimedia sources and for accessing those features and functions from remote hosts. The interface utilizes the export statement: export "C" D11Export void FunctionName(int argc, char ** argv,char * result, SecureSession *ctrl) or the binary equivalent of the export statement.

  12. Upper and lower limits on the Crab pulsar's astrophysical parameters set from gravitational wave observations by LIGO: braking index and energy considerations

    E-Print Network [OSTI]

    Giovanni Santostasi

    2008-07-16

    The Laser Interferometer Gravitational Observatory (LIGO) has recently reached the end of its fifth science run (S5), having collected more than a year worth of data. Analysis of the data is still ongoing but a positive detection of gravitational waves, while possible, is not realistically expected for most likely sources. This is particularly true for what concerns gravitational waves from known pulsars. In fact, even under the most optimistic (and not very realistic) assumption that all the pulsar's observed spin-down is due to gravitational waves, the gravitational wave strain at earth from all the known isolated pulsars (with the only notable exception of the Crab pulsar) would not be strong enough to be detectable by existing detectors. By August 2006, LIGO had produced enough data for a coherent integration capable to extract signal from noise that was weaker than the one expected from the Crab pulsar's spin-down limit. No signal was detected, but beating the spin-down limit is a considerable achievement for the LIGO Scientific Collaboration (LSC). It is customary to translate the upper limit on strain from a pulsar into a more astrophysically significant upper limit on ellipticity. Once the spin-down limit has been beaten, it is possible to release the constraint that all the spin-down is due to gravitational wave emission. A more complete model with diverse braking mechanisms can be used to set limits on several astrophysical parameters of the pulsar. This paper shows possible values of such parameters for the Crab pulsar given the current limit on gravitational waves from this neutron star.

  13. A Science Service Feature Released upon receipt

    E-Print Network [OSTI]

    A Science Service Feature Released upon receipt but intended f o r use January 21, 1933 7 WHY THE W?ATHER

  14. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    (PCs) were used to map surface geothermal features at the Bradys Hot Springs and Salt Wells geothermal systems, Churchill County, Nevada, in less time and with greater...

  15. An efficient online feature extraction algorithm for neural networks

    E-Print Network [OSTI]

    Bozorgmehr, Pouya

    2009-01-01

    facial feature extraction method. Neurocomputing, 2008. [21]Many feature extraction methods have been proposed that3]. Most feature extraction methods assume access to the

  16. Nature Climate Change features Los Alamos forest research

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

    Nature Climate Change Features Forest Research Nature Climate Change features Los Alamos forest research The print issue features as its cover story the tree-stress research of...

  17. Regression on feature projections H. Altay Guvenir

    E-Print Network [OSTI]

    Güvenir, H. Altay

    Regression on feature projections H. Altay Guvenir * Uysal a Department Computer Engineering ######## This paper describes machine learning method, called Regression Feature Projections (RFP), predicting real with KNN based-regression algorithms. Results real sets achieves or comparable accuracy and is both Rule

  18. Data Centering in Feature Space Marina Meila

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Data Centering in Feature Space Marina Meila Department of Statistics University of Washington- cial data show the beneficial effects of the centering methods and reveal further insights-linear kernel machine. In its simplest version, this method of data centering in feature space has been in use

  19. Adaptive Background Estimation using Intensity Independent Features

    E-Print Network [OSTI]

    Lunds Universitet

    Adaptive Background Estimation using Intensity Independent Features Håkan Ardö, Rikard Berthilsson to rapid changes in lighting conditions. Furthermore, the features can be computed very efficiently using reliable way, also in outdoor scenes where the lighting conditions is changing rapidly due to passing

  20. Food Image Recognition with Deep Convolutional Features

    E-Print Network [OSTI]

    Yanai, Keiji

    Food Image Recognition with Deep Convolutional Features Yoshiyuki KAWANO Department of Informatics food recognition accuracy greatly by integrating it with conventional hand-crafted image features accuracy and 92.00% as the top-5 accuracy for the 100-class food dataset, UEC-FOOD100, which outperforms

  1. Modularity in Distributed Feature Composition Pamela Zave

    E-Print Network [OSTI]

    Greenberg, Albert

    , there is an abundance of experi- ence to draw upon. DFC was designed to support modular development of features; Section is an adaptation of the pipes-and-filters architectural style to telecommunication applications. This kind is an overview of pipes-and-filters modularity as realized in DFC. The benefit of feature modularity comes

  2. Life cycle inventory analysis of regenerative thermal oxidation of air emissions from oriented strand board facilities in Minnesota - a perspective of global climate change

    SciTech Connect (OSTI)

    Nicholson, W.J.

    1997-12-31

    Life cycle inventory analysis has been applied to the prospective operation of regenerative thermal oxidation (RTO) technology at oriented strand board plants at Bemidji (Line 1) and Cook, Minnesota. The net system destruction of VOC`s and carbon monoxide, and at Cook a small quantity of particulate, has a very high environmental price in terms of energy and water use, global warming potential, sulfur and nitrogen oxide emissions, solids discharged to water, and solid waste deposited in landfills. The benefit of VOC destruction is identified as minor in terms of ground level ozone at best and possibly slightly detrimental. Recognition of environmental tradeoffs associated with proposed system changes is critical to sound decision-making. There are more conventional ways to address carbon monoxide emissions than combustion in RTO`s. In an environment in which global warming is a concern, fuel supplemental combustion for environmental control does not appear warranted. Consideration of non-combustion approaches to address air emission issues at the two operations is recommended. 1 ref., 5 tabs.

  3. Development of a He{sup 3}?He{sup 4} sub Kelvin active magnetic regenerative refrigerator (AMRR) with no moving parts

    SciTech Connect (OSTI)

    Jahromi, A. E. [Ph.D. student, University of Wisconsin -1500 Engineering Drive, 1335 ERB, Madison, WI, 53706 (United States); Miller, F. K. [Assistant Professor of Mechanical Engineering, University of Wisconsin - 1500 Engineering Drive, 1341 ERB Madison, WI 53706 (United States)

    2014-01-29

    Current state of the art particle and photon detectors such as Transition Edge Sensors (TES) and Microwave Kinetic Inductance Detectors (MKID) use large arrays of sensors or detectors for space science missions. As the size of these space science detectors increases, future astrophysics missions will require sub-Kelvin cooling over larger areas. This leads to not only increased cooling power requirements, but also a requirement for distributed sub-Kelvin cooling. We propose an active Magnetic Regenerative Refrigerator (AMRR) that uses a Superfluid Magnetic Pump (SMP) to circulate liquid He{sup 3}?He{sup 4} through a magnetic regenerator to provide the necessary cooling at sub-Kelvin temperatures. Such system will be capable of distributing the cooling load to a relatively large array of objects. One advantage of using a fluid for heat transfer in such systems is to isolate components such as the superconducting magnets from detectors that are sensitive to magnetic fields. Another advantage of the proposed tandem AMRR is that it does not need Gas Gap Heat Switches (GGHS) to transfer heat during various stages of the magnetic cooling. Our proposed system consists of four superconducting magnets, one superleak, and three heat exchangers. It will operate continuously with no moving parts and it will be capable of providing the necessary cooling at sub-Kelvin temperatures for future space science applications.

  4. Vibration Isolation of a Locomotive Mounted Energy Storage Flywheel 

    E-Print Network [OSTI]

    Zhang, Xiaohua

    2011-02-22

    Utilizing flywheels to store and reuse energy from regenerative braking on locomotives is a new technology being developed in the Vibration Control and Electromechanics Lab at Texas A&M. This thesis focuses on the motion analysis of a locomotive...

  5. Stormwater Management for UMore Park Molly McClung

    E-Print Network [OSTI]

    Amin, S. Massoud

    from brake dust, oils on asphalt, and pesticides and fertilizer from landscaping. These compounds ground water sources on site. To support the current goals of creating a sustainable, regenerative

  6. Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and

    E-Print Network [OSTI]

    Boyer, Edmond

    (1) are used. One such application is regenerative brak- ing, used to recover power in cars and electric mass transit vehicles that would otherwise lose braking energy as heat. However, super- capacitors

  7. CALL FOR PAPERS & PRESENTATIONS Abstracts due by September 15, 2014

    E-Print Network [OSTI]

    Su, Xiao

    Energy conservation and efficiency, energy storage modeling, hybrid vehicles, emissions reduction savings, energy storage devices, regenerative braking, smart electrical supply Abstract can be submitted System safety approaches, safety data management, risk analysis approaches, accident avoidance, accident

  8. CHEN, LOY, GONG, XIANG: FEATURE MINING FOR LOCALISED CROWD COUNTING 1 Feature Mining for Localised Crowd

    E-Print Network [OSTI]

    Gong, Shaogang

    CHEN, LOY, GONG, XIANG: FEATURE MINING FOR LOCALISED CROWD COUNTING 1 Feature Mining for Localised Crowd Counting Ke Chen1 cory@eecs.qmul.ac.uk Chen Change Loy2 ccloy@visionsemantics.com Shaogang Gong1 in print or electronic forms. #12;2 CHEN, LOY, GONG, XIANG: FEATURE MINING FOR LOCALISED CROWD COUNTING

  9. Demand-Driven Construction of Structural Features in ILP

    E-Print Network [OSTI]

    Kramer, Stefan

    Demand-Driven Construction of Structural Features in ILP Stefan Kramer Institute for Computer features in a rather unspeci#12;c way. That is, they do not construct features \\on demand", but rather and feature construction episodes in or- der to construct structural features \\on demand". In a feature

  10. Hybrid Solutions to the Feature Interaction Problem

    E-Print Network [OSTI]

    Calder, M.

    Calder,M. Kolberg,M. Magill,E. Marples,D. Reiff-Marganiec,S. Feature Interactions in Telecommunications and Software Systems VII pp 295-312 IOS Press

  11. 2015 ORNL News Features | ornl.gov

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

    5 2015 ORNL News Features 1-23 of 23 Results Rigors of the road: ORNL invention will support licensing and transport of spent nuclear fuel July 28, 2015 - Moving rods of spent...

  12. Picture Detection in RSVP: Features or Identity?

    E-Print Network [OSTI]

    Potter, Mary C.

    A pictured object can be readily detected in a rapid serial visual presentation sequence when the target is specified by a superordinate category name such as animal or vehicle. Are category features the initial basis for ...

  13. A Science Service Feature WHY THE WEATHER

    E-Print Network [OSTI]

    A Science Service Feature WHY THE WEATHER -__c T -- By Dr. Charles F. Brooks of Clark University States, .during which spell of dry weather teqeratures f e l l at no tiire more than a few degrees below

  14. -A Scienqe Service Feature ? WHY THE WEATHER ?

    E-Print Network [OSTI]

    No- 362 July 9 -A Scienqe Service Feature ? WHY THE WEATHER ? Dr, Charles F, Brooks of Cl? Sir Frederic Stupart of Canada has made a study of pressure and weather conditions on days on which

  15. Finite state machines from feature grammars 

    E-Print Network [OSTI]

    Black, Alan W

    1989-01-01

    This paper describes the conversion of a set of feature grammar rules into a deterministic finite state machine that accepts the same language (or at least a well-defined related language).

  16. Features . . . Cover Crop Value to Cotton

    E-Print Network [OSTI]

    Watson, Craig A.

    .............................................................................................Page 6 Fuel Prices Projections - Encouraging News .......................Page 7 Agronomy Notes VolumeFeatures . . . Cotton Cover Crop Value to Cotton Cotton Price and Rotation ..............................................................Page 5 Miscellaneous Large differences in nitrogen prices.......................................Page 6

  17. Feature Clustering for Accelerating Parallel Coordinate Descent

    SciTech Connect (OSTI)

    Scherrer, Chad; Tewari, Ambuj; Halappanavar, Mahantesh; Haglin, David J.

    2012-12-06

    We demonstrate an approach for accelerating calculation of the regularization path for L1 sparse logistic regression problems. We show the benefit of feature clustering as a preconditioning step for parallel block-greedy coordinate descent algorithms.

  18. Feature extraction for structural dynamics model validation

    SciTech Connect (OSTI)

    Hemez, Francois [Los Alamos National Laboratory; Farrar, Charles [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory; Nishio, Mayuko [UNIV OF TOKYO; Worden, Keith [UNIV OF SHEFFIELD; Takeda, Nobuo [UNIV OF TOKYO

    2010-11-08

    This study focuses on defining and comparing response features that can be used for structural dynamics model validation studies. Features extracted from dynamic responses obtained analytically or experimentally, such as basic signal statistics, frequency spectra, and estimated time-series models, can be used to compare characteristics of structural system dynamics. By comparing those response features extracted from experimental data and numerical outputs, validation and uncertainty quantification of numerical model containing uncertain parameters can be realized. In this study, the applicability of some response features to model validation is first discussed using measured data from a simple test-bed structure and the associated numerical simulations of these experiments. issues that must be considered were sensitivity, dimensionality, type of response, and presence or absence of measurement noise in the response. Furthermore, we illustrate a comparison method of multivariate feature vectors for statistical model validation. Results show that the outlier detection technique using the Mahalanobis distance metric can be used as an effective and quantifiable technique for selecting appropriate model parameters. However, in this process, one must not only consider the sensitivity of the features being used, but also correlation of the parameters being compared.

  19. Feature recognition applications in mesh generation

    SciTech Connect (OSTI)

    Tautges, T.J.; Liu, S.S.; Lu, Y.; Kraftcheck, J.; Gadh, R.

    1997-06-01

    The use of feature recognition as part of an overall decomposition-based hexahedral meshing approach is described in this paper. The meshing approach consists of feature recognition, using a c-loop or hybrid c-loop method, and the use of cutting surfaces to decompose the solid model. These steps are part of an iterative process, which proceeds either until no more features can be recognized or until the model has been completely decomposed into meshable sub-volumes. This method can greatly reduce the time required to generate an all-hexahedral mesh, either through the use of more efficient meshing algorithms on more of the geometry or by reducing the amount of manual decomposition required to mesh a volume.

  20. Feature Diagrams and Logics: There and Back Again Krzysztof Czarnecki

    E-Print Network [OSTI]

    Czarnecki, Krzysztof

    Feature Diagrams and Logics: There and Back Again Krzysztof Czarnecki University of Waterloo fami- lies. In their basic form, feature models contain manda- tory/optional features, feature groups in prod- uct families [15, 11, 4]. In their basic form, feature mod- els contain mandatory

  1. www.cambridge.org/9781107025417 Featured Book!

    E-Print Network [OSTI]

    Bigoni, Davide

    expires 4/30/2013 Save 25% July 2012 544 pp. 235 b/w illus. | 18 color illus. | 10 tables Hardback | 978-1-107-02541-7 List Price: USD 135.00 Discounted Price: USD 101.25 #12;www.cambridge.org/9781107025417 Key Features

  2. Sequential Pattern Classification Without Explicit Feature Extraction

    E-Print Network [OSTI]

    Krovi, Venkat

    classification framework of SVM. We present experiments with off­line digit images where the pixels are simplySequential Pattern Classification Without Explicit Feature Extraction by Hansheng Lei October 21st. A suitable similarity measure can also be used to increase the classification efficiency of traditional

  3. Available instrumentation: Instrument Model/features Analysis

    E-Print Network [OSTI]

    Eberhard, Marc O.

    Available instrumentation: Instrument Model/features Analysis ICP-MS Perkin Elmer ELAN-DRCe with optional front-end Perkin Elmer series 200 HPLC. Available DRC gases include NH3 and O2. Virtually any element, notably metals. The instrument is equipped with a dedicated HPLC that allows differentiation

  4. INTEGRATION: An Overview of Traffic Simulation Features

    E-Print Network [OSTI]

    Hellinga, Bruce

    emissions, and more recently the combined modeling of traffic and communications subsystems. However, all, such as the addition of car-following logic, lane-changing logic, and more dynamic traffic assignment routines. However plazas, vehicle emissions, weaving sections, and HOVs. In addition, some features, such as the real

  5. Data Foundations Data Attributes and Features

    E-Print Network [OSTI]

    Fang, Shiaofen

    1 Data Foundations Data Attributes and Features Data Pre-processing Data Storage Data Analysis 1 Data Attributes Describing data content and characteristics Representing data dimensions Set of all attributes: attribute vector or attribute array. 2 #12;2 Attribute Types 3 Nominal Data Sortable

  6. FEATURE ARTICLE 2 Midwifery in colonial India

    E-Print Network [OSTI]

    Rambaut, Andrew

    FEATURE ARTICLE 2 Midwifery in colonial India WORK IN PROGRESS 4 Religion, medicine and gender- century German medical text detailing the examination of wine. Midwifery in colonial India The role of traditional birth attendants in colonial India. In 1902, the first Midwives Act was passed in England

  7. Food Image Recognition with Deep Convolutional Features

    E-Print Network [OSTI]

    Yanai, Keiji

    Food Image Recognition with Deep Convolutional Features Yoshiyuki Kawano, Keiji Yanai and diseases. If there is a food recommendation system, it is work to keep people in good health. A food recognition engine is needed to build a automatic food recommendation system. Food recognition: Deep

  8. Feature iOS Android Announcements

    E-Print Network [OSTI]

    Ooi, Wei Tsang

    Feature iOS Android Announcements Discussion Forums Workbin Grade Book Roster MultimediaBook Forum What's New Course Description Text and Readings Announcements iOS Android View Notification: Notify students as soon as announcement is posted Discussion Forums iOS Android View Discussion

  9. Heart Failure Cardiovascular Features of Heart Failure

    E-Print Network [OSTI]

    Morrell, Christopher H.

    Heart Failure Cardiovascular Features of Heart Failure With Preserved Ejection Fraction Versus of patients with heart failure with preserved ejection fraction (HFpEF) that differ from those in individuals failure. Background Heart failure with preserved ejection fraction often develops in HLVH patients

  10. Authorization in Trust Management: Features and Foundations

    E-Print Network [OSTI]

    Wang, Xiaoyang "Sean"

    Authorization in Trust Management: Features and Foundations Peter C. Chapin University of Vermont and Christian Skalka University of Vermont and X. Sean Wang University of Vermont Trust management systems' addresses: Peter Chapin, University of Vermont, Department of Computer Science, Burlington, VT 05405

  11. -A Scienq Service Feature \\VHY THE WEATHER ?

    E-Print Network [OSTI]

    No. 408 Sept, 1 -A Scienq Service Feature \\VHY THE WEATHER ? By Dr, Charles E'. Brooks of Clark University. HOT RAILRDAD TRAINS Especially i n warm weather the railroad train i s likely to lose passengers Weather) I All rights reserved by Science Service Science Service, B and 21st Sts,, Washington, D .C #12;

  12. Science Service Feature' ? WHy THE WEATHER P

    E-Print Network [OSTI]

    Science Service Feature' ? WHy THE WEATHER P By nr, 'Charles F, Brooks of Clark University or 300 miles i n width. The speed with which the Weather Clears, A fI10w" or storm area malY Vary Since s as ---------- (Tomorrow: Honey ':Weather A l l rights reserved by Science Service SCIENCE SERVICE , B and 21st Sts

  13. A Sciexice Service Feature ? \\THY "HE WEATHER ?

    E-Print Network [OSTI]

    No. $84 Jan. 26 A Sciexice Service Feature ? \\THY "HE WEATHER ? By Dr. Charles F, Brooks of Clark walk more briskly; every preparation i s made for a spell Of hard cold weather .I' If i t is raining are turned up; hands are put into When a cold wave is expected, some Weather Bureau stations display a square

  14. -A Science Service Feature 7 BHYTRZ WEATHER ?

    E-Print Network [OSTI]

    -A Science Service Feature 7 BHYTRZ WEATHER ? Dr. Charles F. Brooks, of Clark University, t e l l s of SEVERE EARLY WINTER WEATHER In marked contrast t o the mildness of November and December i n eastern, western and southern Europe were experiencing even stormier weather than our Southwest. lanches

  15. service Feature 7 VHY THE WEATHER 7

    E-Print Network [OSTI]

    No, 445 Oct. 14 service Feature 7 VHY THE WEATHER 7 By Dr, Charles F. Brooks of C l a r k, without reaching the ground, Therefore, the sur- face weather is calm and quiet, though clouds may, usually c d l e d Indian Surmer ;vhen it lasts for a few days togethar. The q u i e t weather of October

  16. Automating Energy Optimization with Features Norbert Siegmund

    E-Print Network [OSTI]

    Apel, Sven

    Automating Energy Optimization with Features Norbert Siegmund University of Magdeburg Magdeburg, Germany nsiegmun@ovgu.de Marko Rosenmüller University of Magdeburg Magdeburg, Germany rosenmue@ovgu.de Sven Apel University of Passau Passau, Germany apel@uni-passau.de ABSTRACT Mobile devices such as cell

  17. -A Science &Feature ? TRY THE WEATHER ?

    E-Print Network [OSTI]

    -A Science &Feature ? TRY THE WEATHER ? By Dr. Charles F. Brook8 of Clark University. Dl mountains both i n quiet weather and i n windy is coolad t o temperatures lower than those elsewhere, density and movoments of such clouds t e l l much as t o the trend of the weather, mountains where

  18. -A Science Service Feature ? WHY THE WEATHER ?

    E-Print Network [OSTI]

    No. 772 Oct. 31 -A Science Service Feature ? WHY THE WEATHER ? By Dr. Charles B. Brooks of Clark University. FORECASTING WEATHER FOR BEES Many people consult the Weather Bureau before planning a picnic o r the service. In the f a l l of 1923 the Weather Bureau started a Special service In theregion north

  19. -A --Science --Service Feature ? WHY THE WEATHER ?

    E-Print Network [OSTI]

    I\\?O.564 March 2 -A --Science --Service Feature ? WHY THE WEATHER ? By Dr. Charles F. Brooks address over the radio, the weather of Inauguration my becores less a matter of concern, But those who intend t o be i n Washington for the ceremonies may le interested i n some weather Probabilities

  20. A, Science Service Feature ? WHY TRE WEATHER ?

    E-Print Network [OSTI]

    No. 228 May 80 A, Science Service Feature ? WHY TRE WEATHER ? Dr, Charles E', Brooks of C 1ark% carefully follow the Weather Bureau's forecast. Tho khserver at the central office c)f ,the Weather Bureau unnecessarily, neither does he get wet. Though the weather rilanls wife scoffs at his forecasts, she always asks

  1. A, Science Service Feature Released upon receipt

    E-Print Network [OSTI]

    A, Science Service Feature Released upon receipt but intended for use July 21, 1933 ? WHY THE J every summer i n the United States and southern Canada. A citizen of South Dakota, where the mercury, i a population Of 120,000. ( A l l rights reserved by Science Service, Inc.) SCIENCE SBVICE Washington, D.C. 21st

  2. MEBSURIXG CLOUD MOVEMENTS A Science Service Feature

    E-Print Network [OSTI]

    -.- - MEBSURIXG CLOUD MOVEMENTS I A Science Service Feature Released upon receist but intended on Meteorology Vatching the clouds drift by, a traditional pastime of idle people, i s part Of the professional his head. He makes his cloud observations w i t h the aid of an instrument known as a nei

  3. A Fast Texture FeatureA Fast Texture Feature Extraction Method for RegionExtraction Method for Region--

    E-Print Network [OSTI]

    Fritts, Jason

    A Fast Texture FeatureA Fast Texture Feature Extraction Method for RegionExtraction Method-level Texture Features #12;Fast Texture Feature Extraction Basic Idea · Usually the neighboring pixels texture solid color #12;Fast Texture Feature Extraction Basic Steps 1. Divide the target image into high

  4. 3736 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 59, NO. 8, OCTOBER 2010 Asymmetrical Multilevel Inverter for Traction Drives

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    reduces these nine sources to only one: the battery car. The topology also permits full regenerative braking working as a three-level converter. The proposed system is intended for ap- plication in EVs from levels of voltage, bidirectional power supplies are required, and the same happens when regenerative

  5. Final Week of National Energy Action Month Features Technological...

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

    Week of National Energy Action Month Features Technological Advances in Clean Energy and DOE Support of Scientific Research Final Week of National Energy Action Month Features...

  6. Berkeley Lab's New Computing Sciences Facility Features First...

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

    Berkeley Lab's New Computing Sciences Facility Features First-of-Its-Kind Seismic Floor Berkeley Lab's New Computing Sciences Facility Features First-of-Its-Kind Seismic Floor...

  7. Regenerative Boiler Feedwater Heater Economics 

    E-Print Network [OSTI]

    Viar, W. L.

    1986-01-01

    heater stage. INTRODUCTION The evolution of power plant cycles has been characterized by advancements in materials of cunstruction, and constrained by economics of the times. Our understanding of the physical laws (e.g., first and second laws... 11 ion. For an es:t imated installed cost of $350,000, the NROI will ~pproach 130 percent. Somewhere. be tween these two ;points. the real investment probably lies. CASE STUDY 2 In this eva luat iq'n, the high-pressure feed preheater...

  8. Regen SW | 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 ECoop Inc Jump to:Newberg,Energy LLCALLETEREFURecent contentSW Jump to: navigation,

  9. Semantic Features for Classifying Referring Search Terms

    SciTech Connect (OSTI)

    May, Chandler J.; Henry, Michael J.; McGrath, Liam R.; Bell, Eric B.; Marshall, Eric J.; Gregory, Michelle L.

    2012-05-11

    When an internet user clicks on a result in a search engine, a request is submitted to the destination web server that includes a referrer field containing the search terms given by the user. Using this information, website owners can analyze the search terms leading to their websites to better understand their visitors needs. This work explores some of the features that can be used for classification-based analysis of such referring search terms. We present initial results for the example task of classifying HTTP requests countries of origin. A system that can accurately predict the country of origin from query text may be a valuable complement to IP lookup methods which are susceptible to the obfuscation of dereferrers or proxies. We suggest that the addition of semantic features improves classifier performance in this example application. We begin by looking at related work and presenting our approach. After describing initial experiments and results, we discuss paths forward for this work.

  10. MAMA Software Features: Visual Examples of Quantification

    SciTech Connect (OSTI)

    Ruggiero, Christy E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Porter, Reid B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-05-20

    This document shows examples of the results from quantifying objects of certain sizes and types in the software. It is intended to give users a better feel for some of the quantification calculations, and, more importantly, to help users understand the challenges with using a small set of ‘shape’ quantification calculations for objects that can vary widely in shapes and features. We will add more examples to this in the coming year.

  11. Structural features of dielectric oxide laser ceramics

    SciTech Connect (OSTI)

    Kaminskii, Alexandr A; Taranov, A V; Khazanov, E N; Akchurin, M Sh

    2012-10-31

    The relation between the transport characteristics of subterahertz thermal phonons and the structural features of singlephase dielectric crystalline laser ceramics based on cubic oxides synthesised in different technological regimes is studied. The effect of plastic deformation on the formation of the grain structure and intergrain layers (boundaries), as well as on the thermophysical, acoustic, optical, and laser characteristics of the materials is analysed. (active media)

  12. Linear feature selection for multipopulation classification 

    E-Print Network [OSTI]

    Havens, Kathryn Anne

    1974-01-01

    ) December 1974 ABSTRACT Linear Feature Selection for Multipopulation Classification. (December 1974) Kathryn A. Havens, B. S. , Lamar University Chairman of Advisory Committee: Dr. L. F. Guseman, Jr. A classification procedure for n...-dimensional normally distributed observation vectors which belong to one of three populations is de- scribed. In particular, a computational procedure is presented for finding a lxn vector B which minimizes the probability of misclassification with respect...

  13. Testing of Critical Features of Polysilicon MEMS

    SciTech Connect (OSTI)

    LAVAN,DAVID A.; BUCHHEIT,THOMAS E.

    1999-12-02

    The behavior of MEMS devices is limited by the strength of critical features such as thin ligaments, oxide cuts joining layers, pin joints and hinges. Devices fabricated at Sandia's Microelectronic Development Laboratory have been successfully tested to investigate these features. A series of measurements were performed on samples with gage lengths of 15 to 1000 microns, using conventional and tungsten coated samples as well as samples that include the critical features of standard components in the test section. Specimens have a freely moving pin joint on one end that anchors the sample to the silicon die to allow rotation to reduce effects of bending. Each sample is loaded in uniaxial tension by pulling laterally with a flat tipped diamond in a computer-controlled Nanoindenter. Load is calculated by resolving the measured lateral and normal forces into the applied tensile force and frictional losses. The specimen cross section and gage length dimensions were verified by measuring against a standard in the SEM. Multiple tests can be programmed at one time and performed without operator assistance allowing the collection of significant populations of data.

  14. Segmentation and Visualization of Multivariate Features using Feature-Local Distributions

    E-Print Network [OSTI]

    Gruchalla, Kenny

    Gruchalla1,2 , Mark Rast2,3 , Elizabeth Bradley2 , and Pablo Mininni4,3 1 National Renewable Energy on their local statistical properties (e.g., central moments of the feature-local distributions), which

  15. Simultaneous Feature Extraction and Selection Using a Masking Genetic Algorithm

    E-Print Network [OSTI]

    1 Simultaneous Feature Extraction and Selection Using a Masking Genetic Algorithm Michael L. Raymer: identification of functional water molecules bound to protein surfaces, and diagnosis of thyroid deficiency of feature extraction ­ defining new features in terms of the original feature set to facilitate more

  16. Determining Vision Graphs for Distributed Camera Networks Using Feature Digests

    E-Print Network [OSTI]

    Radke, Rich

    1 Determining Vision Graphs for Distributed Camera Networks Using Feature Digests Zhaolin Cheng and the length of each feature descriptor are substantially reduced to form a fixed-length "feature digest" that is broadcast to the rest of the network. Each receiver camera decompresses the feature digest to recover

  17. Minimum Redundancy Feature Selection from Microarray Gene Expression Data

    E-Print Network [OSTI]

    Peng, Hanchuan

    features or characteristics that can help identify and monitor the target diseases or function types

  18. Quantum features of consciousness, computers and brain

    E-Print Network [OSTI]

    Michael B. Mensky

    2009-10-22

    Many people believe that mysterious phenomenon of consciousness may be connected with quantum features of our world. The present author proposed so-called Extended Everett's Concept (EEC) that allowed to explain consciousness and super-consciousness (intuitive knowledge). Brain, according to EEC, is an interface between consciousness and super-consciousness on the one part and body on the other part. Relations between all these components of the human cognitive system are analyzed in the framework of EEC. It is concluded that technical devices improving usage of super-consciousness (intuition) may exist.

  19. ENGINEERED BARRIER SYSTEM FEATURES, EVENTS AND PROCESSES

    SciTech Connect (OSTI)

    Jaros, W.

    2005-08-30

    The purpose of this report is to evaluate and document the inclusion or exclusion of engineered barrier system (EBS) features, events, and processes (FEPs) with respect to models and analyses used to support the total system performance assessment for the license application (TSPA-LA). A screening decision, either Included or Excluded, is given for each FEP along with the technical basis for exclusion screening decisions. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.114 (d, e, and f) [DIRS 173273]. The FEPs addressed in this report deal with those features, events, and processes relevant to the EBS focusing mainly on those components and conditions exterior to the waste package and within the rock mass surrounding emplacement drifts. The components of the EBS are the drip shield, waste package, waste form, cladding, emplacement pallet, emplacement drift excavated opening (also referred to as drift opening in this report), and invert. FEPs specific to the waste package, cladding, and drip shield are addressed in separate FEP reports: for example, ''Screening of Features, Events, and Processes in Drip Shield and Waste Package Degradation'' (BSC 2005 [DIRS 174995]), ''Clad Degradation--FEPs Screening Arguments (BSC 2004 [DIRS 170019]), and Waste-Form Features, Events, and Processes'' (BSC 2004 [DIRS 170020]). For included FEPs, this report summarizes the implementation of the FEP in the TSPA-LA (i.e., how the FEP is included). For excluded FEPs, this analysis provides the technical basis for exclusion from TSPA-LA (i.e., why the FEP is excluded). This report also documents changes to the EBS FEPs list that have occurred since the previous versions of this report. These changes have resulted due to a reevaluation of the FEPs for TSPA-LA as identified in Section 1.2 of this report and described in more detail in Section 6.1.1. This revision addresses updates in Yucca Mountain Project (YMP) administrative procedures as they pertain to this report; the current procedures are addressed in Section 2. This revision also addresses updates to the technical basis in supporting analysis and model reports and corroborative documentation, as presented in Sections 4 and 6 of this report. Finally, Sections 4, 5, and 6 of this report provide additional information pertaining to the relevant FEPs-related Acceptance Criteria presented in ''Yucca Mountain Review Plan, Final Report'' (YMRP) (NRC 2003 [DIRS 163274], Sections 2.2.1.2.1.3 and 2.2.1.3.3.3).

  20. LEDSGP/tools/features | 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: EnergyKulpsville,LEDSGP/activities <LEDSGP/home <LEDSGP/tools/features <

  1. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR2 pre-CGAJanuary 3,November2,1,Feature

  2. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR2 pre-CGAJanuary 3,November2,1,Feature28,

  3. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR2 pre-CGAJanuaryAugust 1, 2005 [Feature

  4. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR2 pre-CGAJanuaryAugust 1,3, 2012 [Feature

  5. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR26, 2015 [Facility News, Feature Stories

  6. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR26, 2015 [Facility News, Feature

  7. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR26, 2015 [Facility News, FeatureJanuary

  8. ARM - Feature Stories and Releases Article

    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 Comments? WeDatastreamstps DocumentationAtlanticENA ContactsProductsSACR26, 2015 [Facility News,3, 2015 [Feature

  9. ARM - Feature Stories and Releases Article

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae2Gathering andNovember 16, 2015 [Feature Stories and

  10. ARM - Feature Stories and Releases Article

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae2Gathering andNovember 16, 2015 [Feature Stories

  11. ARM - Feature Stories and Releases Article

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae2Gathering andNovember 16, 2015 [Feature

  12. ARM - Feature Stories and Releases Article

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae2Gathering andNovember 16, 2015 [FeatureScientists

  13. Latest Feature Video | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat PumpsTechnologies | Blandine JeromeLatest Feature Video

  14. DVU Featured Training & Events Form

    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 c i pStateDOEAnalysis,Department of U.S.DURA URBAN HOUSE PeopleFeatured

  15. Method of identifying features in indexed data

    DOE Patents [OSTI]

    Jarman, Kristin H. (Richland, WA) [Richland, WA; Daly, Don Simone (Richland, WA) [Richland, WA; Anderson, Kevin K. (Richland, WA) [Richland, WA; Wahl, Karen L. (Richland, WA) [Richland, WA

    2001-06-26

    The present invention is a method of identifying features in indexed data, especially useful for distinguishing signal from noise in data provided as a plurality of ordered pairs. Each of the plurality of ordered pairs has an index and a response. The method has the steps of: (a) providing an index window having a first window end located on a first index and extending across a plurality of indices to a second window end; (b) selecting responses corresponding to the plurality of indices within the index window and computing a measure of dispersion of the responses; and (c) comparing the measure of dispersion to a dispersion critical value. Advantages of the present invention include minimizing signal to noise ratio, signal drift, varying baseline signal and combinations thereof.

  16. Component with inspection-facilitating features

    SciTech Connect (OSTI)

    Marra, John J; Zombo, Paul J

    2014-02-11

    A turbine airfoil can be formed with features to facilitate measurement of its wall thickness. An outer wall of the airfoil can include an outer surface and an inner surface. The outer surface of the airfoil can have an outer inspection target surface, and the inner surface of the airfoil can have an inner inspection target surface. The inner and outer target surfaces can define substantially flat regions in surfaces that are otherwise highly contoured. The inner and outer inspection target surfaces can be substantially aligned with each other. The inner and outer target surfaces can be substantially parallel to each other. As a result of these arrangements, a highly accurate measurement of wall thickness can be obtained. In one embodiment, the outer inspection target surface can be defined by an innermost surface of a groove formed in the outer surface of the outer wall of the airfoil.

  17. Matching Sets of Features for Efficient Retrieval and Recognition

    E-Print Network [OSTI]

    Grauman, Kristen Lorraine

    2006-08-11

    In numerous domains it is useful to represent a single example by the collection of local features or parts that comprise it. In computer vision in particular, local image features are a powerful way to describe images of ...

  18. Matching sets of features for efficient retrieval and recognition

    E-Print Network [OSTI]

    Grauman, Kristen Lorraine, 1979-

    2006-01-01

    In numerous domains it is useful to represent a single example by the collection of local features or parts that comprise it. In computer vision in particular, local image features are a powerful way to describe images of ...

  19. On the semantics of phi features on pronouns

    E-Print Network [OSTI]

    Sudo, Yasutada, Ph. D. Massachusetts Institute of Technology

    2012-01-01

    This thesis investigates three topics relating to the semantics of phi features on pronouns. Part I focuses on gender features on pronouns. Following previous studies (Cooper 1983, Heim & Kratzer 1998), I claim that they ...

  20. Geothermal Heating and Cooling Systems Featured on NBC Nightly...

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

    Heating and Cooling Systems Featured on NBC Nightly News Geothermal Heating and Cooling Systems Featured on NBC Nightly News April 13, 2009 - 11:24am Addthis NBC Nightly News...

  1. Detection of Phonological Features in Continuous Speech using Neural Networks 

    E-Print Network [OSTI]

    King, Simon; Taylor, Paul

    which uses binary features, 2) a multi valued (MV) feature system which uses traditional phonetic categories such as manner, place etc, and 3) Government Phonology (GP) which uses a set of structured primes. All experiments used recurrent neural networks...

  2. Geothermal Energy Featured on NBC's Today Show | Department of...

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

    Featured on NBC's Today Show Geothermal Energy Featured on NBC's Today Show November 18, 2008 - 2:49pm Addthis In Iceland, there are five major geothermal power plants which...

  3. A hybrid ANN/DBN approach to articulatory feature recognition 

    E-Print Network [OSTI]

    Frankel, Joe; King, Simon

    2005-01-01

    Artificial neural networks (ANN) have proven to be well suited to the task of articulatory feature (AF) recognition. Previous studies have taken a cascaded approach where separate ANNs are trained for each feature group, ...

  4. : A Model of Refactoring Physically and Virtually Separated Features

    E-Print Network [OSTI]

    Kaestner, Christian

    for SPLs. We distinguish [26] between implementation approaches that physically separate features (a.k.a that virtually separate features (a.k.a. virtual separation of concerns) by annotating code fragments in a common

  5. Feb. 9 Event at Jefferson Lab Features Chemistry Demonstrations...

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

    Feb. 9 Event at Jefferson Lab Features Chemistry Demonstrations Set to Pop Music NEWPORT NEWS, Va., Feb. 2, 2010 - Jefferson Lab's Feb. 9 Science Series event will feature members...

  6. Unsupervised Overlapping Feature Selection for Conditional Random Fields Learning

    E-Print Network [OSTI]

    ) model for Chinese word segmentation (CWS). These features include character-based N-gram (CNG), Accessor

  7. Water Management at UBC Okanagan Part 2: Water Features

    E-Print Network [OSTI]

    Water Management at UBC Okanagan Part 2: Water Features UBC Okanagan 2007 Angele Clarke A SEEDS and Objectives 2 Methods 3 The Symbolic and Cultural Values of Water 3 Landscape Aesthetics Relationship to Water 5 UBC-Okanagan Campus Landscape and Water Features 8 Water Features and the Built Environment Campus

  8. Feature Mining Paradigms for Scientific Data Tat-Sang Choy

    E-Print Network [OSTI]

    Wilkins, John

    Feature Mining Paradigms for Scientific Data Ming Jiang Tat-Sang Choy Sameep Mehta Matt Coatney techniques that can mine, track, and visualize the important features in the data. In this paper, we present to their complex evolution. Our framework includes two paradigms for feature mining, and the choice of one over

  9. MIREX 2005: COMBINED FLUCTUATION FEATURES FOR MUSIC GENRE

    E-Print Network [OSTI]

    Rauber,Andreas

    Histogram) to the MIREX 2005 audio genre classification task. All feature sets are based on fluctuation, which is rank 5. 1 IMPLEMENTATION 1.1 Feature Extraction We extract 3 feature sets from audio data, using algorithms implemented in MATLAB. The algorithms process audio tracks in standard digital PCM

  10. Manufacturing Feature Instances: Which Ones to Recognize? Satyandra K. Gupta

    E-Print Network [OSTI]

    Nau, Dana S.

    Manufacturing Feature Instances: Which Ones to Recognize? Satyandra K. Gupta Mechanical Engineering@src.umd.edu William C. Regliy National Institute of Standards and Technology Manufacturing Systems Integration-81. Abstract Manufacturing features and feature-based representations have become an integral part of research

  11. Features, Events, and Processes: system Level

    SciTech Connect (OSTI)

    D. McGregor

    2004-10-15

    The purpose of this analysis report is to evaluate and document the inclusion or exclusion of the system-level features, events, and processes (FEPs) with respect to modeling used to support the total system performance assessment for the license application (TSPA-LA). A screening decision, either Included or Excluded, is given for each FEP along with the technical basis for screening decisions. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.113 (d, e, and f) (DIRS 156605). The system-level FEPs addressed in this report typically are overarching in nature, rather than being focused on a particular process or subsystem. As a result, they are best dealt with at the system level rather than addressed within supporting process-level or subsystem-level analyses and models reports. The system-level FEPs also tend to be directly addressed by regulations, guidance documents, or assumptions listed in the regulations; or are addressed in background information used in development of the regulations. For included FEPs, this analysis summarizes the implementation of the FEP in the TSPA-LA (i.e., how the FEP is included). For excluded FEPs, this analysis provides the technical basis for exclusion from the TSPA-LA (i.e., why the FEP is excluded). The initial version of this report (Revision 00) was developed to support the total system performance assessment for site recommendation (TSPA-SR). This revision addresses the license application (LA) FEP List (DIRS 170760).

  12. Features, Events, and Processes: Disruptive Events

    SciTech Connect (OSTI)

    P. Sanchez

    2004-11-08

    The purpose of this analysis report is to evaluate and document the inclusion or exclusion of the disruptive events features, events, and processes (FEPs) with respect to modeling used to support the total system performance assessment for license application (TSPA-LA). A screening decision, either ''Included'' or ''Excluded,'' is given for each FEP, along with the technical basis for screening decisions. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.114 (d), (e), and (f) [DIRS 156605]. The FEPs addressed in this report deal with both seismic and igneous disruptive events, such as fault displacements through the repository and an igneous intrusion into the repository. For included FEPs, this analysis summarizes the implementation of the FEP in TSPA-LA (i.e., how the FEP is included). For excluded FEPs, this analysis provides the technical basis for exclusion from TSPA-LA (i.e., why the FEP is excluded). Previous versions of this report were developed to support the total system performance assessments (TSPA) for various prior repository designs. This revision addresses the repository design for the license application (LA).

  13. Clinical variation in epidermal features of ubiquitous plants 

    E-Print Network [OSTI]

    Cabral, Adolfo Celestino

    1990-01-01

    epidermis attributes. Three dicots; Proso is ladulosa Torr. , Celtis ~1' t M'lid. , d ' ' ' M'll. , d f t B t*1 t' d 1 M' h . . ~t' d 1 El mus canadensis L. var. canadensis, Sti a leucotricha f . & R p . , d ~ h' h . . ~f (C. E. Hubb. ) Gould were... Quantitative Features. Observed Qualitative Features. . ~Sti a leucotricha. Observed Quantitative Features. 63 63 63 67 68 68 72 73 73 CHAP TER Observed Qualitative Features. . . 1 t'* t Observed Quantitative Features. . Observed Qualitative...

  14. Lerner et al.:Feature Extraction by NN Nonlinear Mapping 1 Feature Extraction by Neural Network Nonlinear Mapping

    E-Print Network [OSTI]

    Lerner, Boaz

    of feature extraction methods based on statistical pattern recognition or on artificial neural networks(x) and by the criteria they have to optimize. Feature extraction methods can be grouped into four categories [4] based, unsupervized methods are the only way to perform feature extraction. In other cases, supervized paradigms

  15. Physics Features of TRU-Fueled VHTRs

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lewis, Tom G.; Tsvetkov, Pavel V.

    2009-01-01

    The current waste management strategy for spent nuclear fuel (SNF) mandated by the US Congress is the disposal of high-level waste (HLW) in a geological repository at Yucca Mountain. Ongoing efforts on closed-fuel cycle options and difficulties in opening and safeguarding such a repository have led to investigations of alternative waste management strategies. One potential strategy for the US fuel cycle would be to make use of fuel loadings containing high concentrations of transuranic (TRU) nuclides in the next-generation reactors. The use of such fuels would not only increase fuel supply but could also potentially facilitate prolonged operation modes (viamore »fertile additives) on a single fuel loading. The idea is to approach autonomous operation on a single fuel loading that would allow marketing power units as nuclear batteries for worldwide deployment. Studies have already shown that high-temperature gas-cooled reactors (HTGRs) and their Generation IV (GEN IV) extensions, very-high-temperature reactors (VHTRs), have encouraging performance characteristics. This paper is focused on possible physics features of TRU-fueled VHTRs. One of the objectives of a 3-year U.S. DOE NERI project was to show that TRU-fueled VHTRs have the possibility of prolonged operation on a single fuel loading. A 3D temperature distribution was developed based on conceivable operation conditions of the 600?MWth VHTR design. Results of extensive criticality and depletion calculations with varying fuel loadings showed that VHTRs are capable for autonomous operation and HLW waste reduction when loaded with TRU fuel.« less

  16. Feature Integration as an Operation of Theory Change Hannah Harris

    E-Print Network [OSTI]

    Ryan, Mark

    of its subscribers be called A, B and C. Two possible features of POTS are CFB and CW. CFB (Call Forward

  17. Better Buildings Multi-Family Peer Exchange Call Featuring: Stewards...

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

    7, 2011 BetterBuildings Multi-Family Peer Exchange Call Featuring: Stewards of Affordable Housing for the Future Call Slides and Discussion Summary Agenda * Call logistics and...

  18. Special Feature: Reducing Energy Costs with Better Batteries

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

    Reducing Energy Costs with Better Batteries Special Feature: Reducing Energy Costs with Better Batteries September 9, 2013 Contact: Linda Vu, +1 510 495 2402, lvu@lbl.gov...

  19. New Features of the Edison XC30 - Differences from Hopper

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

    New Features of the Edison XC30 While the Edison and Hopper systems have similar programming environments and software, there are some key architectural differences between the...

  20. Automatic Lung Vessel Segmentation via Stacked Multiscale Feature Learning

    E-Print Network [OSTI]

    Toronto, University of

    Automatic Lung Vessel Segmentation via Stacked Multiscale Feature Learning Ryan Kiros, Karteek We introduce a representation learning approach to segmenting vessels in the lungs. Our algorithm

  1. busso@utdallas.edu ANALYSIS OF FACIAL FEATURES OF

    E-Print Network [OSTI]

    Busso, Carlos

    @utdallas.edu MSP - CRSS 13 Feature Extraction · Low level features · CERT AUs · CERT head pose ·High level@UTDALLS.EDU #12;busso@utdallas.edu MSP - CRSS 4 Are They Distracted??? Driver's facial and head movement can head/ facial movement and driver distraction MSP@UTDALLS.EDU #12;busso@utdallas.edu MSP - CRSS 6

  2. DEEP LEARNING FOR ROBUST FEATURE GENERATION IN AUDIOVISUAL EMOTION RECOGNITION

    E-Print Network [OSTI]

    Cafarella, Michael J.

    DEEP LEARNING FOR ROBUST FEATURE GENERATION IN AUDIOVISUAL EMOTION RECOGNITION Yelin Kim, Honglak features or alternatively require the use of labeled data. In this paper we focus on deep learning- actions in multimodal data. We propose and evaluate a suite of Deep Belief Network models, and demonstrate

  3. Feature selection in high dimensional regression problems for genomics

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Feature selection in high dimensional regression problems for genomics Julie Hamon1,2,3 , Clarisse, France julien.jacques@lifl.fr Abstract. In the context of genomic selection in animal breeding and "closed to real" datasets. Keywords: Feature selection, combinatorial optimization, regression, genomic. 1

  4. ON FEATURE BASED AUTOMATIC CLASSIFICATION OF SINGLE AND MULTITONE SIGNALS

    E-Print Network [OSTI]

    Arabshahi, Payman

    ON FEATURE BASED AUTOMATIC CLASSIFICATION OF SINGLE AND MULTITONE SIGNALS Arindam K. Das, Payman of interest has not been previ- ously observed; it is not part of a library of known signals; and no automated demonstrating the feasibility of the above features for au- tomatic classification purposes of single

  5. Constrained LDA for Grouping Product Features in Opinion Mining

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    different words and phrases to describe the same product feature. For example, "picture" and "photo" refer to the same feature for cameras. Grouping such synonyms is critical for opinion summary. Although World, but they are not synonyms in camera reviews as "picture" is more likely to be synonymous to "photo" while "movie" to "video

  6. Categorization of Display Ads using Image and Landing Page Features

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Categorization of Display Ads using Image and Landing Page Features Andrew Kae Department the problem of automatically categorizing display ad images into a taxonomy of relevant interest categories. In particu- lar, we focus on the efficacy of using image features extracted by OCR techniques from the ad

  7. Programming Language Feature Agglomeration Jeremy Singer Callum Cameron Marc Alexander

    E-Print Network [OSTI]

    Singer, Jeremy

    Programming Language Feature Agglomeration Jeremy Singer Callum Cameron Marc Alexander University systems. In this paper, we argue that feature-creep also occurs in the domain of programming languages in modern languages that have evolved from earlier languages. 1. Introduction As programming language theory

  8. Automatically Extracting Features for Concept Learning from the Web

    E-Print Network [OSTI]

    Murphy, Robert F.

    Automatically Extracting Features for Concept Learning from the Web William W. Cohen wcohen propose a simple, general-purpose method that takes as input a set of instances and a collection of web, for example, the gen- erated feature g classical might be true for all instances that appear in a web page

  9. Translating Orc Features into Petri nets and the Join Calculus

    E-Print Network [OSTI]

    Bruni, Roberto

    Translating Orc Features into Petri nets and the Join Calculus Roberto Bruni1, Hern´an Melgratti2@di.unipi.it, hernan.melgratti@imtlucca.it, et52@mcs.le.ac.uk Abstract. Cook and Misra's Orc is an elegant language the key novel features of Orc by comparing it with variations of Petri nets. The comparison shows that Orc

  10. Translating Orc Features into Petri nets and the Join Calculus #

    E-Print Network [OSTI]

    Bruni, Roberto

    Translating Orc Features into Petri nets and the Join Calculus # Roberto Bruni 1 , Hern@di.unipi.it, hernan.melgratti@imtlucca.it, et52@mcs.le.ac.uk Abstract. Cook and Misra's Orc is an elegant language the key novel features of Orc by comparing it with variations of Petri nets. The comparison shows that Orc

  11. Termination Semantics of Logic Programs with Cut and Related Features

    E-Print Network [OSTI]

    Giesl, Juergen

    Termination Semantics of Logic Programs with Cut and Related Features Jamie Andrews Dept of termination for logic programs. I am particularly interested in the termination of logic programs which use practical features such as the Prolog ``cut''. In order to prove termination of such programs

  12. Topics in Biomedical Optics: introduction to the feature issue

    E-Print Network [OSTI]

    Larson-Prior, Linda

    Topics in Biomedical Optics: introduction to the feature issue Joseph P. Culver,1, * Wolfgang; accepted 25 March 2009; posted 25 March 2009 (Doc. ID 109253); published 30 March 2009 This Applied Optics feature issue on Topics in Biomedical Optics highlights papers presented at the 2008 Biomedical Topical

  13. MODELING SECOND-ORDER VOLUMETRIC FEATURES Robert B. Fisher

    E-Print Network [OSTI]

    Fisher, Bob

    MODELING SECOND-ORDER VOLUMETRIC FEATURES Robert B. Fisher Department of Artificial Intelligence Edinburgh University ABSTRACT Model creation using SMS's volumetric primitives revealed that many models eight second-order volumetric features that add detail to models, as might be required in a recog

  14. Compare C++ Syntax and Features with Java Here is a brief summary that compares C++ syntax and features with Java

    E-Print Network [OSTI]

    Liang, Y. Daniel

    and features with Java C++ Java cout int x; cin >> x dynamically p->getArea(); or (*p).getArea() c.getArea(); delete p; c = null; Automatically removed PassCompare C++ Syntax and Features with Java Here is a brief summary that compares C++ syntax

  15. Entry for FIW'00 Feature Interaction Contest Malte Plath and Mark Ryan

    E-Print Network [OSTI]

    Ryan, Mark

    for CFB, etc). The script can be used to apply a feature to an already-featured system, giving systems

  16. Feature Extraction and Classification of Clouds in High Resolution Panchromatic Satellite Imagery /

    E-Print Network [OSTI]

    Sharghi, Elan

    2013-01-01

    3 3. Feature Extraction Methods and ProposedChapter 3 Feature Extraction Methods and Proposed AlgorithmExtraction Methods..

  17. Integrating Articulatory Features into HMM-based Parametric Speech Synthesis 

    E-Print Network [OSTI]

    Ling, Zhenhua; Richmond, Korin; Yamagishi, Junichi; Wang, Ren-Hua

    2009-01-01

    This paper presents an investigation of ways to integrate articulatory features into Hidden Markov Model (HMM)-based parametric speech synthesis, primarily with the aim of improving the performance of acoustic parameter ...

  18. Efficient Learning and Feature Selection in High Dimensional Regression 

    E-Print Network [OSTI]

    Ting, Jo-Anne; D'Souza, Aaron; Vijayakumar, Sethu; Schaal, Stefan

    2010-01-01

    We present a novel algorithm for efficient learning and feature selection in high-dimensional regression problems. We arrive at this model through a modification of the standard regression model, enabling us to derive a probabilistic version...

  19. Science in St. Louis featuring Dr. Daniel Giammar | Photosynthetic...

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

    Daniel Giammar Science in St. Louis featuring Dr. Daniel Giammar The Chemistry and Engineering for Producing and Supplying Clean Drinking Water November 22, 2014 - 10:30am Brauer...

  20. Better Buildings Low Income Peer Exchange CallFeaturing: Case...

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

    14, 2011 BetterBuildings Low Income Peer Exchange Call Featuring: Case study on integration of income-qualified programs into Michigan's BetterBuildings program Call Slides and...

  1. Intrinsic feature-based pose measurement for imaging motion compensation

    DOE Patents [OSTI]

    Baba, Justin S.; Goddard, Jr., James Samuel

    2014-08-19

    Systems and methods for generating motion corrected tomographic images are provided. A method includes obtaining first images of a region of interest (ROI) to be imaged and associated with a first time, where the first images are associated with different positions and orientations with respect to the ROI. The method also includes defining an active region in the each of the first images and selecting intrinsic features in each of the first images based on the active region. Second, identifying a portion of the intrinsic features temporally and spatially matching intrinsic features in corresponding ones of second images of the ROI associated with a second time prior to the first time and computing three-dimensional (3D) coordinates for the portion of the intrinsic features. Finally, the method includes computing a relative pose for the first images based on the 3D coordinates.

  2. Feature Detection, Characterization and Confirmation Methodology: Final Report

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2009-01-01

    of vertical borehole flow. The geothermal gradient is thegeothermal temperature gradient that is consistent with temperature profiles observed in boreholesgeothermal gradient) Fracture, porosity, lithology Velocity of intact granite, faults and fracture zone fractures, continuity and geometry of features between boreholes

  3. Searching for Interacting Features Zheng Zhao and Huan Liu

    E-Print Network [OSTI]

    Liu, Huan

    poses a challenge to learning tasks such as classification. In the presence of many irrele- vant on its correlation with the class; but when combined with other features, it becomes very rele- vant

  4. Discrete Feature Approach for Heterogeneous Reservoir Production Enhancement

    SciTech Connect (OSTI)

    Dershowitz, William S.; Curran, Brendan; Einstein, Herbert; LaPointe, Paul; Shuttle, Dawn; Klise, Kate

    2002-07-26

    The report presents summaries of technology development for discrete feature modeling in support of the improved oil recovery (IOR) for heterogeneous reservoirs. In addition, the report describes the demonstration of these technologies at project study sites.

  5. Journal Impact and Proximity: An Assessment Using Bibliographic Features

    E-Print Network [OSTI]

    Menczer, Filippo

    Journal Impact and Proximity: An Assessment Using Bibliographic Features Chaoqun Ni1 , Debora Oxford College of Emory University ABSTRACT Journals in the "Information Science and Library Science" category of Journal Citation Reports (JCR) were compared using both bibliometric and bibliographic

  6. Efficiently Matching Sets of Features with Random Histograms

    E-Print Network [OSTI]

    Makarychev, Konstantin

    advanced search systems for audio [23], video [29] and sensor data also use sets of unordered high-dimensional feature vec- tors as their metadata representations, thus it is important to develop a flexible, effective

  7. GOOGLE EARTH QUICK GUIDE (1)Google Earth Features

    E-Print Network [OSTI]

    Smith-Konter, Bridget

    GOOGLE EARTH QUICK GUIDE (1)Google Earth Features The Google Earth of the Google Earth window. Often when opening up the Google Earth program, the view screen will be a view of the entire Earth from space. Navigation bar

  8. Science in St. Louis featuring Dr. Ursula Goodenough | Photosynthetic...

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

    Ursula Goodenough Science in St. Louis featuring Dr. Ursula Goodenough Developing Algae As Producers of Jet Fuel November 15, 2014 - 10:30am Brauer Hall 012, Washington University...

  9. Multistream Articulatory Feature-Based Models for Visual Speech Recognition

    E-Print Network [OSTI]

    Glass, James R.

    We study the problem of automatic visual speech recognition (VSR) using dynamic Bayesian network (DBN)-based models consisting of multiple sequences of hidden states, each corresponding to an articulatory feature (AF) such ...

  10. 9 science Service Feature 1 WHY THE WEATHER ?

    E-Print Network [OSTI]

    9 science Service Feature 1 WHY THE WEATHER ? Dr, Charles I?, Brooks, of Clark TJniversity, -&A of being the ''hailiest" Weather Bureau station i n the United States. storms, but only 10 per cent

  11. A, Science Service Feature ? V.%Y THE WEATHER ?

    E-Print Network [OSTI]

    A, Science Service Feature ? V.%Y THE WEATHER ? Dr. Charles F. BrQoks, discusses: Secretary, American Meteorological Society HJW HOT IS IT? In extreme hot weather we find some solace in comparing t h

  12. A Science Service Feature 'I ,\\WY THE WEATHER ?

    E-Print Network [OSTI]

    mo. .L73 Dec. 1 A Science Service Feature 'I ,\\WY THE WEATHER ? Dr. Charles F. Bbooks, Secretary temperatures occasionally Occur. me weather Bureau's low record for the month is 50 below zero i n north

  13. -A Science Service Feature 7 WHY TIIE WEATHER 7

    E-Print Network [OSTI]

    No. 338 June 11 -A Science Service Feature 7 WHY TIIE WEATHER 7 Dr. Charles F. Brooks, of Clark ocean temperatures, and dry, cold weather - i n short they fee* that 1924 may be like the famous 1816, I

  14. c -A Science Service Feature 7 WHY THE WEATHER p

    E-Print Network [OSTI]

    NO, 381 July 31 c -A Science Service Feature 7 WHY THE WEATHER p By Dr. Charles F. Brooks of Clark August Weather) , A l l rights reserved by Science Service 9cience Service, B and 21st Sts., Washington

  15. Feature-Based Statistical Analysis of Combustion Simulation Data

    SciTech Connect (OSTI)

    Bennett, J; Krishnamoorthy, V; Liu, S; Grout, R; Hawkes, E; Chen, J; Pascucci, V; Bremer, P T

    2011-11-18

    We present a new framework for feature-based statistical analysis of large-scale scientific data and demonstrate its effectiveness by analyzing features from Direct Numerical Simulations (DNS) of turbulent combustion. Turbulent flows are ubiquitous and account for transport and mixing processes in combustion, astrophysics, fusion, and climate modeling among other disciplines. They are also characterized by coherent structure or organized motion, i.e. nonlocal entities whose geometrical features can directly impact molecular mixing and reactive processes. While traditional multi-point statistics provide correlative information, they lack nonlocal structural information, and hence, fail to provide mechanistic causality information between organized fluid motion and mixing and reactive processes. Hence, it is of great interest to capture and track flow features and their statistics together with their correlation with relevant scalar quantities, e.g. temperature or species concentrations. In our approach we encode the set of all possible flow features by pre-computing merge trees augmented with attributes, such as statistical moments of various scalar fields, e.g. temperature, as well as length-scales computed via spectral analysis. The computation is performed in an efficient streaming manner in a pre-processing step and results in a collection of meta-data that is orders of magnitude smaller than the original simulation data. This meta-data is sufficient to support a fully flexible and interactive analysis of the features, allowing for arbitrary thresholds, providing per-feature statistics, and creating various global diagnostics such as Cumulative Density Functions (CDFs), histograms, or time-series. We combine the analysis with a rendering of the features in a linked-view browser that enables scientists to interactively explore, visualize, and analyze the equivalent of one terabyte of simulation data. We highlight the utility of this new framework for combustion science; however, it is applicable to many other science domains.

  16. The effective field theory of inflation models with sharp features

    SciTech Connect (OSTI)

    Bartolo, Nicola; Cannone, Dario; Matarrese, Sabino E-mail: dario.cannone@pd.infn.it

    2013-10-01

    We describe models of single-field inflation with small and sharp step features in the potential (and sound speed) of the inflaton field, in the context of the Effective Field Theory of Inflation. This approach allows us to study the effects of features in the power-spectrum and in the bispectrum of curvature perturbations, from a model-independent point of view, by parametrizing the features directly with modified ''slow-roll'' parameters. We can obtain a self-consistent power-spectrum, together with enhanced non-Gaussianity, which grows with a quantity ? that parametrizes the sharpness of the step. With this treatment it is straightforward to generalize and include features in other coefficients of the effective action of the inflaton field fluctuations. Our conclusion in this case is that, excluding extrinsic curvature terms, the only interesting effects at the level of the bispectrum could arise from features in the first slow-roll parameter ? or in the speed of sound c{sub s}. Finally, we derive an upper bound on the parameter ? from the consistency of the perturbative expansion of the action for inflaton perturbations. This constraint can be used for an estimation of the signal-to-noise ratio, to show that the observable which is most sensitive to features is the power-spectrum. This conclusion would change if we consider the contemporary presence of a feature and a speed of sound c{sub s} < 1, as, in such a case, contributions from an oscillating folded configuration can potentially make the bispectrum the leading observable for feature models.

  17. Multi-tube fuel nozzle with mixing features

    DOE Patents [OSTI]

    Hughes, Michael John

    2014-04-22

    A system includes a multi-tube fuel nozzle having an inlet plate and a plurality of tubes adjacent the inlet plate. The inlet plate includes a plurality of apertures, and each aperture includes an inlet feature. Each tube of the plurality of tubes is coupled to an aperture of the plurality of apertures. The multi-tube fuel nozzle includes a differential configuration of inlet features among the plurality of tubes.

  18. Volume Decomposition and Feature Recognition for Hexahedral Mesh Generation

    SciTech Connect (OSTI)

    GADH,RAJIT; LU,YONG; TAUTGES,TIMOTHY J.

    1999-09-27

    Considerable progress has been made on automatic hexahedral mesh generation in recent years. Several automatic meshing algorithms have proven to be very reliable on certain classes of geometry. While it is always worth pursuing general algorithms viable on more general geometry, a combination of the well-established algorithms is ready to take on classes of complicated geometry. By partitioning the entire geometry into meshable pieces matched with appropriate meshing algorithm the original geometry becomes meshable and may achieve better mesh quality. Each meshable portion is recognized as a meshing feature. This paper, which is a part of the feature based meshing methodology, presents the work on shape recognition and volume decomposition to automatically decompose a CAD model into meshable volumes. There are four phases in this approach: (1) Feature Determination to extinct decomposition features, (2) Cutting Surfaces Generation to form the ''tailored'' cutting surfaces, (3) Body Decomposition to get the imprinted volumes; and (4) Meshing Algorithm Assignment to match volumes decomposed with appropriate meshing algorithms. The feature determination procedure is based on the CLoop feature recognition algorithm that is extended to be more general. Results are demonstrated over several parts with complicated topology and geometry.

  19. Master Thesis High torque, high impact braking

    E-Print Network [OSTI]

    Daraio, Chiara

    to add a break in each actuated joint, so it is not necesary to wasted energy during the stoped time to any sort of actuator, e.g., hidraulic, electric, . . . Even though they have been deeply studied

  20. Microscale Confinement features in microfluidic devices can affect biofilm

    SciTech Connect (OSTI)

    Kumar, Aloke; Karig, David K; Neethirajan, Suresh; Acharya, Rajesh K; Mukherjee, Partha P; Retterer, Scott T; Doktycz, Mitchel John

    2013-01-01

    Biofilms are aggregations of microbes that are encased by extra-cellular polymeric substances (EPS) and adhere to surfaces and interfaces. Biofilm development on abiotic surfaces is a dynamic process, which typically proceeds through an initial phase of adhesion of plankntonic microbes to the substrate, followed by events such as growth, maturation and EPS secretion. However, the coupling of hydrodynamics, microbial adhesion and biofilm growth remain poorly understood. Here, we investigate the effect of semiconfined features on biofilm formation. Using a microfluidic device and fluorescent time-lapse microscopy, we establish that confinement features can significantly affect biofilm formation. Biofilm dynamics change not only as a function of confinement features, but also of the total fluid flow rate, and our combination of experimental results and numerical simulations reveal insights into the link between hydrodynamics and biofilm formation.

  1. SOLAR MAGNETIC TRACKING. IV. THE DEATH OF MAGNETIC FEATURES

    SciTech Connect (OSTI)

    Lamb, D. A.; Howard, T. A.; DeForest, C. E.; Parnell, C. E.; Welsch, B. T.

    2013-09-10

    The removal of magnetic flux from the quiet-Sun photosphere is important for maintaining the statistical steady state of the magnetic field there, for determining the magnetic flux budget of the Sun, and for estimating the rate of energy injected into the upper solar atmosphere. Magnetic feature death is a measurable proxy for the removal of detectable flux, either by cancellation (submerging or rising loops, or reconnection in the photosphere) or by dispersal of flux. We used the SWAMIS feature tracking code to understand how nearly 2 Multiplication-Sign 10{sup 4} magnetic features die in an hour-long sequence of Hinode/SOT/NFI magnetograms of a region of the quiet Sun. Of the feature deaths that remove visible magnetic flux from the photosphere, the vast majority do so by a process that merely disperses the previously detected flux so that it is too small and too weak to be detected, rather than completely eliminating it. The behavior of the ensemble average of these dispersals is not consistent with a model of simple planar diffusion, suggesting that the dispersal is constrained by the evolving photospheric velocity field. We introduce the concept of the partial lifetime of magnetic features, and show that the partial lifetime due to Cancellation of magnetic flux, 22 hr, is three times slower than previous measurements of the flux turnover time. This indicates that prior feature-based estimates of the flux replacement time may be too short, in contrast with the tendency for this quantity to decrease as resolution and instrumentation have improved. This suggests that dispersal of flux to smaller scales is more important for the replacement of magnetic fields in the quiet Sun than observed bipolar cancellation. We conclude that processes on spatial scales smaller than those visible to Hinode dominate the processes of flux emergence and cancellation, and therefore also the quantity of magnetic flux that threads the photosphere.

  2. Sample Spaces and Feature Models: There and Back Again Krzysztof Czarnecki, Steven She

    E-Print Network [OSTI]

    Czarnecki, Krzysztof

    Sample Spaces and Feature Models: There and Back Again Krzysztof Czarnecki, Steven She University of feature configurations, each representing a particular product in the family. Basic feature models had propagation and auto- completion [13], and feature model refactoring [2]. Although basic feature models

  3. WebFEATURE: An interactive web tool for identifying and visualizing functional sites on macromolecular structures

    E-Print Network [OSTI]

    Brutlag, Doug

    1 WebFEATURE: An interactive web tool for identifying and visualizing functional sites University, Stanford CA 94305 USA Abstract WebFEATURE (http://feature.stanford.edu/webfeature/) is a web and nucleic acids. WebFEATURE is the public interface to the scanning algorithm of the FEATURE package

  4. Kernel Machine Based Feature Extraction Algorithms for Regression Problems

    E-Print Network [OSTI]

    Szepesvari, Csaba

    Kernel Machine Based Feature Extraction Algorithms for Regression Problems Csaba Szepesv´ari 1 and Andr´as Kocsor and Korn´el Kov´acs 2 Abstract. In this paper we consider two novel kernel machine based performance of the algorithm. The second algo- rithm combines kernel machines with average derivative

  5. SPATIAL POINT PROCESSES AND GRAPH BASED STATISTICAL FEATURES

    E-Print Network [OSTI]

    Jyväskylä, University of

    2010 2000 Mathematics Subject Classification. 60G55, 62-07, 62M30. ISSN 1457-9235 #12;SPATIAL POINT Classification. 60G55, 62-07, 62M30. 1 #12;Spatial point processes and graph based statistical features Tuomas library has been developed for the computation of the graph-based summaries. Keywords: Spatial point

  6. ENGINEERING FEATURES OF THE FUSION IGNITION RESEARCH EXPERIMENT (FIRE)

    E-Print Network [OSTI]

    ENGINEERING FEATURES OF THE FUSION IGNITION RESEARCH EXPERIMENT (FIRE) R.J. Thomea and P.J. Heitzenroederb for the FIRE Design Team a MIT Plasma Science and Fusion Center, 185 Albany St, Cambridge, MA, USA Box 451, Princeton, NJ, USA 08543 The FIRE tokamak is an option for the next step in the US magnetic

  7. Regression Given input data (features), predict value of a

    E-Print Network [OSTI]

    Giger, Christine

    Regression #12;Regression ! · Given input data (features), predict value of a continuous quantity;! · Assumption: linear relation between input and output Linear regression y = 0 + 1x y = > x x = 1 x > #12 ^ = (XX> ) 1 Xy etc. #12;! · Many relations are not linear · The complete graph Non-linear regression #12

  8. Regression Given input data (features), predict value of a

    E-Print Network [OSTI]

    Giger, Christine

    Regression #12;Regression · Given input data (features), predict value of a continuous quantity;· Assumption: linear relation between input and output Linear regression y = 0 + 1x x = 1 x1 x2 . . . xn y · The complete graph Non-linear regression #12;· Need to fit non-linear functions · example: polynomials Non

  9. Nonlinear feature identification of impedance-based structural health monitoring

    SciTech Connect (OSTI)

    Rutherford, A. C. (Amanda C.); Park, G. H. (Gyu Hae); Sohn, H. (Hoon); Farrar, C. R. (Charles R.)

    2004-01-01

    The impedance-based structural health monitoring technique, which utilizes electromechanical coupling properties of piezoelectric materials, has shown feasibility for use in a variety of structural health monitoring applications. Relying on high frequency local excitations (typically > 30 kHz), this technique is very sensitive to minor changes in structural integrity in the near field of piezoelectric sensors. Several damage sensitive features have been identified and used coupled with the impedance methods. Most of these methods are, however, limited to linearity assumptions of a structure. This paper presents the use of experimentally identified nonlinear features, combined with impedance methods, for structural health monitoring. Their applicability to damage detection in various frequency ranges is demonstrated using actual impedance signals measured from a portal frame structure. The performance of the nonlinear feature is compared with those of conventional impedance methods. This paper reinforces the utility of nonlinear features in structural health monitoring and suggests that their varying sensitivity in different frequency ranges may be leveraged for certain applications.

  10. Southwest Climate Outlook, March 2012 3 | Feature Article

    E-Print Network [OSTI]

    Fay, Noah

    Southwest Climate Outlook, March 2012 3 | Feature Article http://climas half of Arizona, New Mexico, Texas, and Oklahoma com- bined. When all was said and done, damages in the highest 1 percent blanketed almost all of Texas, western Oklahoma, and eastern New Mexico and covered

  11. Modeling Social Cues: Effective Features for Predicting Listener Nods

    E-Print Network [OSTI]

    Zhu, Xiaojin "Jerry"

    Modeling Social Cues: Effective Features for Predicting Listener Nods Faisal Khan, Bilge Mutlu, we present preliminary work in modeling a particular communicative mechanism--listener nods observations of verbal and nonverbal cues from the speaker and listener nods and a hidden sub- structure

  12. IBVS -novel features of a small OA astronomical journal

    E-Print Network [OSTI]

    Holl, András

    IBVS - novel features of a small OA astronomical journal András Holl, Konkoly Observatory, Budapest journal. Since 1961 it has been serving the variable star community. An Open Access electronic version, and ADS for author names) for search. Considerable efforts have been made to interconnect the journal

  13. Feature Interaction: A Critical Review and Considered Forecast

    E-Print Network [OSTI]

    Reiff-Marganiec, Stephan

    , Glasgow G12 8QQ, United Kingdom bDepartment of Computing Science and Mathematics, University of Stirling, Stirling FK9 4LA, United Kingdom Abstract The state of the art of the field of feature interactions in telecommunications ser- vices is reviewed, concentrating on three major research trends: software engineering

  14. FEATURE FOCUS: Fuels & Combustion a new dawn for

    E-Print Network [OSTI]

    FEATURE FOCUS: Fuels & Combustion a new dawn for diesel Will Americans pay the price to put light diesels of 30 years ago. Taking advantage of electronic controls and advances in fuel injection, today's light-duty diesels are quiet and clean, and they provide excellent low-end torque and superior fuel

  15. Routing for Wireless Multi Hop Networks Unifying and Distinguishing Features

    E-Print Network [OSTI]

    Graham, Nick

    -to-end communication, wireless communication provides flexible deployment and use, cost reduction, mobility, network dynamic network conditions due to interference, loss of signal power with distance and freedom of mobilityRouting for Wireless Multi Hop Networks ­ Unifying and Distinguishing Features Technical Report

  16. Fast Viscoelastic Behavior with Thin Features Chris Wojtan

    E-Print Network [OSTI]

    Turk, Greg

    Fast Viscoelastic Behavior with Thin Features Chris Wojtan Georgia Institute of Technology Greg Turk Georgia Institute of Technology Abstract We introduce a method for efficiently animating a wide simulations of complex elastic and plastic behavior. We signifi- cantly expand the range of physical

  17. Surface Topography Quantification by Integral and Feature-related Parameters

    E-Print Network [OSTI]

    Smid, Michiel

    Surface Topography Quantification by Integral and Feature-related Parameters Quantifizieren von microscopy, the topography of brittle fracture surfaces and wire- eroded surfaces was quantified. The global-related parameters in topographies, which uses methods of computational geometry. The software was tested using

  18. Nature Climate Change features Los Alamos forest research

    E-Print Network [OSTI]

    - 1 - Nature Climate Change features Los Alamos forest research February 27, 2013 New print edition of journal tags tree-stress project for cover story LOS ALAMOS, N.M., Feb. 27, 2013--The print issue of Los Alamos National Laboratory scientist A. Park Williams and partners from the U.S. Geological Survey

  19. A Science Service Feature 1 WHY THEtWTHER 1

    E-Print Network [OSTI]

    Vnivarsity, BARING BETTER THAN SEEZBG IN ,FOGS One of the most impressive features of a fog i s the abnormal rarely noticed on clen,r days sound startlingly nem i n d fog. 1%Seerls if the fog vere an amplifier. !the fog itself i a , however, merely a normal accomprtninent of the invergion 09 tenpercture

  20. Disjunctions and Inheritance in the Context Feature Structure System

    E-Print Network [OSTI]

    as there is no logical necessity for de- ciding. 1 Introduction The Context Feature Structure System (CFS) [BSttcher disjunctions and dynamically definable types for structure inheritance. CFS is currently used to develop computational treatment. The unification algorithm of CFS and the con- cept of virtual agreements for structure

  1. FEATURE FOCUS: Fuels & Combustion a new dawn for

    E-Print Network [OSTI]

    and a gap between the price of diesel and more expensive gasoline. Diesel engines are more expensive than gasoline engines and the lower fuel prices in FEATURE FOCUS: Fuels & Combustion a new dawn for diesel Will Americans pay the price to put light

  2. Context Interchange: New Features and Formalisms for the Intelligent Integration

    E-Print Network [OSTI]

    Bressan, Stéphane

    mediated data access to both traditional and web-based information sources. Categories and Subject information sources and receivers has grown at an unprecedented rate in the last few years, contributedContext Interchange: New Features and Formalisms for the Intelligent Integration of Information

  3. WellcomeHistoryISSUE 44 SUMMER 2010 Feature articles 2

    E-Print Network [OSTI]

    Rambaut, Andrew

    VieWs 21 #12;2 Exeter unit WellcomeHistory Issue 41 The `disease of Brazil' Above: Carlos Chagas tendingWellcomeHistoryISSUE 44 SUMMER 2010 Feature articles 2 Chagas' disease in Brazil GlasGOW ceNtre 4 in this field (such as the OCI) were created in Brazil, Chagas' `triple discovery' of a vector, pathogen

  4. New Augmented Reality Taxonomy : Technologies and Features of

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Chapter 1 New Augmented Reality Taxonomy : Technologies and Features of Augmented Environment to define augmented reality (AR) en- vironments and secondly, based on our definition, a new taxonomy space combining the real environment and a virtual environment. Below we present our functional taxonomy

  5. UAB's four campus buildings featuring green vegetative roofs have performed

    E-Print Network [OSTI]

    Bedwell, David M.

    UAB's four campus buildings featuring green vegetative roofs have performed well through the years vegetative roof on the second floor of the Hill University Center. The roof is the first pilot-scale green Maintenance, Campus Services & Grounds, and Energy Management and student groups including Science

  6. Stacked Convolutional Auto-Encoders for Hierarchical Feature Extraction

    E-Print Network [OSTI]

    Schmidhuber, Juergen

    convolutional auto-encoder (CAE) for unsupervised feature learning. A stack of CAEs forms a convolutional neural network (CNN). Each CAE is trained using conventional on-line gradient descent without additional with those found by previous approaches. Initializing a CNN with filters of a trained CAE stack yields

  7. Investigation of Automated Feature Extraction Using Multiple Data Sources

    E-Print Network [OSTI]

    Theiler, James

    multiple data sources and 3) fusion of results from multiple individual data sources. Keywords: supervised classification, data fusion, support vector machines, feature extraction, machine learning, multispectral 1 of data fusion is a hot-bed of activity. It is the aim of data fusion to integrate the data available from

  8. Contents Volume 10, Number 5 October 2008 Special features

    E-Print Network [OSTI]

    -424 authorized improvements to tsunami warn- ing systems, ______________________________________________________________________________________________________________________________ Special features Arthur C. Clarke's 2005 letter (printed version only) 1 Review of the tsunami warning and forecast system 4 Review committee bios 4 Tofino [B.C.] to go it alone on tsunami sirens 12 Tsunamis! Coast

  9. A General Method for Feature Matching and Model Extraction

    E-Print Network [OSTI]

    Olson, Clark F.

    A General Method for Feature Matching and Model Extraction Clark F. Olson Jet Propulsion Laboratory is extracted from or #12;t to data that draws bene#12;ts from both generate-and-test methods and those based that are ecient and robust. We apply this method to object recognition, geometric primitive extraction, robust

  10. Quickly Boosting Decision Trees -Pruning Underachieving Features Early -

    E-Print Network [OSTI]

    Perona, Pietro

    @caltech.edu Caltech, Pasadena, CA 91125 USA Thomas Fuchs fuchs@caltech.edu Caltech, Pasadena, CA 91125 USA Piotr Doll such as computer vi- sion, behavior analysis, and document ranking to name a few (Doll´ar et al., 2012; Burgos exemplars, an entire set of features can be pruned based on the performance of its exemplar. (Doll´ar et al

  11. Learning Rotational Features for Filament Detection German Gonzalez

    E-Print Network [OSTI]

    Fleuret, François

    Learning Rotational Features for Filament Detection Germ´an Gonz´alez CVLab, EPFL EPFL-I&C -Cv filament-like structures in noisy images rely on filters optimized for sig- nals of a particular shape fea- tures, we can outperform state-of-the-art filament detection techniques on many different kinds

  12. Improving Word Sense Discrimination with Gloss Augmented Feature Vectors

    E-Print Network [OSTI]

    Pedersen, Ted

    Improving Word Sense Discrimination with Gloss Augmented Feature Vectors Amruta Purandare1 and Ted USA http://senseclusters.sourceforge.net Abstract. This paper presents a method of unsupervised word with information from the glosses found in a ma- chine readable dictionary. Each content word that occurs

  13. Recent MARS15 Developments, New Features and Event Generator Modes

    E-Print Network [OSTI]

    McDonald, Kirk

    Recent MARS15 Developments, New Features and Event Generator Modes Fermilab Accelerator Physics-28, 2013 Nikolai Mokhov 8 MARS15 EXCLUSIVE EVENT GENERATORS Improved Cascade-Exciton Model code, CEM03. Mokhov, "CEM03.03 and LAQGSM03.03 Event Generators for the MCNP6, MCNPX and MARS15 Transport Codes", LANL

  14. LOGICAL QUERY COMPOSITION FROM LOCAL VISUAL FEATURE THESAURUS

    E-Print Network [OSTI]

    Fauqueur, Julien

    LOGICAL QUERY COMPOSITION FROM LOCAL VISUAL FEATURE THESAURUS Julien FAUQUEUR and Nozha BOUJEMAA photometric thesaurus. It gives an overview of the database content in the query interface. Unsupervised generation of this thesaurus is based on grouping similar regions into "region categories". The user can

  15. advertising feature an4 | December 2008 | nature methods

    E-Print Network [OSTI]

    Cai, Long

    density. Then we pumped in nitrogen gas to create an anaero- bic environment for inducing ethanol vessel with pH, dissolved oxygen (DO) and redox (OPR) probes (5), and a nitrogen gas tank (6). ©2008advertising feature an4 | December 2008 | nature methods application notes cell Biology be operated

  16. Topical Influence on Twitter: A Feature Construction Approach

    E-Print Network [OSTI]

    Kosters, Walter

    the introduction of Web 2.0 [1]. Especially through online social networks [6], it has become extremely easy) our features, we assume a definition of influence based on the sales funnel [3], as used by internet: it can help us to determine who we should definitely follow on TWITTER if we are interested in a certain

  17. Unreliable supplies offeedstock FEATURE I DESPERATELY SEEKING MOLY

    E-Print Network [OSTI]

    Danon, Yaron

    the radioactive isotopes used in medical diagnostics, none pl ays a more pivotal role than technct ium-99m. Each depletes it by halfevelY six hours. The feedstock that suppli es it- molybdenum-99- also has a rathershortUnreliable supplies offeedstock FEATURE I DESPERATELY SEEKING MOLY Des erately for widely used

  18. ORNL Lightweighting Research Featured on MotorWeek

    SciTech Connect (OSTI)

    2014-04-15

    PBS MotorWeek, television's longest running automotive series, featured ORNL lightweighting research for vehicle applications in an episode that aired in early April 2014. The crew captured footage of research including development of new metal alloys, additive manufacturing, carbon fiber production, advanced batteries, power electronics components, and neutron imaging applications for materials evaluation.

  19. ARQ PROTOCOL FEATURES FOR HF RADIO LINKS Eric E. Johnson

    E-Print Network [OSTI]

    Johnson, Eric E.

    ARQ PROTOCOL FEATURES FOR HF RADIO LINKS Eric E. Johnson New Mexico State University ABSTRACT The explosion of interest in using Internet-style applica- tions over wireless links prompts investigation links with Internet-style workloads. The investigation is focused on high-frequency radio links

  20. UT Arlington > Features Building tiny robots to deliver medicine

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    UT Arlington > Features Building tiny robots to deliver medicine Coming from a family of doctors systems. "I've always been interested in medicine and medical-related fields," she says. So much so in India, Rao had only two options: dental school or engineering. Considering her interest in medicine, she

  1. Homological methods in feature extraction of multidimensional images

    E-Print Network [OSTI]

    Mrozek, Marian

    are studied in the analysis of blood vessel images in various other settings [17], [18], [19]), as well) and the appearance (or lack of appearance) of holes may be used to test certain features of the image via the study two concrete issues: the analysis of 2D colonoscope images of blood vessels in colon mucosa [14], [15

  2. BLIND EXTRACTION OF SOURCE SIGNALS WITH SPECIFIED STOCHASTIC FEATURES

    E-Print Network [OSTI]

    Vialatte, François

    interestinmanyapplicationssuchas biomedical signal processing (ECG or EEG), speech recog- nition (cocktail party problem), imageBLIND EXTRACTION OF SOURCE SIGNALS WITH SPECIFIED STOCHASTIC FEATURES Ruck THAWONMAS 3 and Andrzej a neural-network approach which allows se- quential extraction of source signals from a linear mixture

  3. BLIND EXTRACTION OF SOURCE SIGNALS WITH SPECIFIED STOCHASTIC FEATURES

    E-Print Network [OSTI]

    Thawonmas, Ruck

    is a problem of interest in many applications such as biomedical signal processing (ECG or EEG), speech recogBLIND EXTRACTION OF SOURCE SIGNALS WITH SPECIFIED STOCHASTIC FEATURES Ruck THAWONMAS 3 and Andrzej a neural­network approach which allows se­ quential extraction of source signals from a linear mixture

  4. WellcomeHistoryISSUE 43 SPRING 2010 Feature articles 2

    E-Print Network [OSTI]

    Rambaut, Andrew

    dispensary in India. Right: Cowpats, used for fuel, dying on a house in Bihar. Cow manure is also a vector by the disease. UNICEF provided additional assistance for publicity The return of kala-azar in India #12WellcomeHistoryISSUE 43 SPRING 2010 Feature articles 2 Kala-azar in India The cause of Oriental

  5. Towards Probabilistic Acceptors and Transducers for Feature Structures Daniel Quernheim

    E-Print Network [OSTI]

    Reyle, Uwe

    and reference ("who did what to whom"). Feature structures provide an attractive, well-studied, standard format acceptors and transducers for #12; INSTANCE charge THEME 1 INSTANCE person NAME "Pascale" PRED INSTANCE and OP1 INSTANCE resist AGENT 1 THEME INSTANCE arrest

  6. A Science Service Feature 1 VWY THE WEATHER ?

    E-Print Network [OSTI]

    A Science Service Feature 1 VWY THE WEATHER ? Dr. Charles F, Brooke, Secretary, American N~tsorologicalSociety, describes : Plant l i f e playa an important part i n weather by assisting i n the eVaporatia Of moisture i

  7. A Scieacc Service Feature p WHY THE WEATHER ?

    E-Print Network [OSTI]

    NO, 546 Feb. 9 A Scieacc Service Feature p WHY THE WEATHER ? - -- By Cr. Charles F , Brooks of Clark Univarsity,,, DOUCET DoucBt, Quebec, El weather s t a t i o n t h a t only recently began reporting t o the U. S, Weather Bureau, is EL new cold wave guardian f o r the northeastern United States

  8. -A Science Service Feature ? M Y THE WEATHER ?

    E-Print Network [OSTI]

    No. 507 Dec. 25 -A Science Service Feature ? M Y THE WEATHER ? By D r , Charles F. Brooks of Clark as weather vanes, Fhat do the different mind directions c o l ~ o n l y indicate? Throughout most of the United States our general f a i r weather Finds are ivesterly, i n sumaer sovhhmssterly, except

  9. A Science Service Feature--7 WHY THE WEATHER ?

    E-Print Network [OSTI]

    No. 1m Nov. 2 A Science Service Feature-- 7 WHY THE WEATHER ? Dr. Charles F. Brooks, Secretary on the eastern shores often occur several days i n S U C C ~ S S ~ O ~ ,while the weather on the westerly shores

  10. -A Science Service Feature WHY THE WEATHER 7

    E-Print Network [OSTI]

    NO. 382 Aug. 1 -A Science Service Feature WHY THE WEATHER 7 By Dr. Charles F, Brooks of Clark University AVERAGE AUGUST WEATDR A Weather Bureau summary says of August weather: "The average *'` is `lieht of the ROCW Mountains the weather usually occurs i n the upper Lake region and the Northeastern States where

  11. -A Science Service Feature WHY THE WEATHER 1

    E-Print Network [OSTI]

    No. 377 July 26 -A Science Service Feature WHY THE WEATHER 1 Dr. Charles F. Brooks, of Clark University, describe$1 TH?l RAIN TREE Prof. C. F. Talman, of the U. S, Weather Bureau, t e l l s the story considerable quantities, This process, "guttation", Occurs chiefly at night, or i n cloudy fir foggy weather, i

  12. -A Science Service Feature 7 ViHY THE WEATHER

    E-Print Network [OSTI]

    No. 370 July 18 -A Science Service Feature 7 ViHY THE WEATHER Dr. Charles F. Brooks, of Cla , 1923. having a normal clear weather v i s i b i l i t y not exceeding 22 miles, were distinctly Bee

  13. A Science Service Feature...------* ? "Y THE WEATHER 7

    E-Print Network [OSTI]

    A Science Service Feature...------* ? "Y THE WEATHER 7 By Dr. Charles F. Brooks of Clark University. "FULL MOON EATS CLOUDS" Although the moon has no established direct effect on the weather, several old regarding the moon and the weather have meteorological significance. One 0.' them, "the full moon eats

  14. Discriminative MR Image Feature Analysis for Automatic Schizophrenia and Alzheimer's

    E-Print Network [OSTI]

    neuroradiologists. Most work in automatic or semi- automatic MR neuroimage classification [1,5,14,7,16] has beenDiscriminative MR Image Feature Analysis for Automatic Schizophrenia and Alzheimer's Disease Classification Yanxi Liu1 , Leonid Teverovskiy1 , Owen Carmichael1 , Ron Kikinis2 , Martha Shenton2 , Cameron S

  15. SPECIAL FEATURE FORUM THE TREE OF LIFE IN ECOSYSTEMS

    E-Print Network [OSTI]

    Thomas, David D.

    SPECIAL FEATURE ­ FORUM THE TREE OF LIFE IN ECOSYSTEMS The world-wide `fast­slow' plant economics, Penrith, NSW 2751, Australia Summary 1. The leaf economics spectrum (LES) provides a useful framework described, involved only two key resources (carbon and nutrients) and one of three economically important

  16. 38 renewable energy focus July/August 2009 Feature article

    E-Print Network [OSTI]

    Hampshire, Damian

    38 renewable energy focus July/August 2009 Feature article Compact electrical generators.: Illustration shows magnified view of high temperature superconductor cable. #12;renewable energy focus July/August 2009 39 Renewable energy/infrastructure there has been excitement about superconductivity. The sting

  17. On the Potential Inadequacy of Mutual Information for Feature Selection

    E-Print Network [OSTI]

    Verleysen, Michel

    Place du Levant 3, 1348 Louvain-la-Neuve - Belgium Abstract. Despite its popularity as a relevance learning and data mining applications, feature selection is a task of major importance. In particular, many. Bruges (Belgium), 25-27 April 2012, i6doc.com publ., ISBN 978-2-87419-049-0. Available from http://www.i6

  18. Mutual information for feature selection with missing data

    E-Print Network [OSTI]

    Verleysen, Michel

    -la-Neuve - Belgium Abstract. Feature selection is an important task for many machine learning applications; moreover are likely to occur in machine learning and data mining. The origin of this missingness can be as diverse Intelligence and Machine Learning. Bruges (Belgium), 27-29 April 2011, i6doc.com publ., ISBN 978

  19. Feature Selection with Mutual Information for Uncertain Data

    E-Print Network [OSTI]

    Verleysen, Michel

    -la-Neuve, Belgium {gauthier.doquire,michel.verleysen}@uclouvain.be http://www.ucl.ac.be/mlg Abstract. In many real, feature selection, mutual information. 1 Introduction Nowadays, many machine learning and data mining to uncertainty. All these reasons explain the recent interest in the development of data mining tools

  20. -A Science. Service Feature 1 WHY THE WEATHER 1

    E-Print Network [OSTI]

    No. 340 June 13 -A Science. Service Feature 1 WHY THE WEATHER 1 Dr, Charles F. Brooks, of Clark University, says: In summer, the cloudy, rainy weather i s typically cooler than the clear, sunny spells. the coldest weather, mhile "lows11 are relatively warm, of W Particular day can be thmght of as dependent

  1. ORNL Lightweighting Research Featured on MotorWeek

    ScienceCinema (OSTI)

    None

    2014-06-03

    PBS MotorWeek, television's longest running automotive series, featured ORNL lightweighting research for vehicle applications in an episode that aired in early April 2014. The crew captured footage of research including development of new metal alloys, additive manufacturing, carbon fiber production, advanced batteries, power electronics components, and neutron imaging applications for materials evaluation.

  2. Technical Section Feature-aligned harmonic volumetric mapping using MFS

    E-Print Network [OSTI]

    Li, Xin "Shane"

    Technical Section Feature-aligned harmonic volumetric mapping using MFS Xin Li a,b,Ã, Huanhuan Xu a Correspondence and registration Harmonic volumetric mapping a b s t r a c t We present an efficient adaptive method to compute the harmonic volumetric mapping, which establishes a smooth correspondence between two

  3. PLAN FEATURES Deductible (per calendar year) None Individual

    E-Print Network [OSTI]

    INSURANCE COMPANY Required Unlimited Once Family Payment Limit is met, all family members will be consideredPLAN FEATURES Deductible (per calendar year) None Individual None Family Member Coinsurance Applies to all expenses unless otherwise stated. Payment Limit (per calendar year) $2,000 Employee $4,000 Family

  4. Mathematical features of Whitehead's point-free geometry

    E-Print Network [OSTI]

    Gerla, Giangiacomo

    1 Mathematical features of Whitehead's point- free geometry In HANDBOOK OF WHITEHEADIAN PROCESS quote computability theory, lat- tice theory, computer science. Now, the basic ideas of point over' and is the symbol for the fundamental relation of extension." Moreover, Whitehead in PNK lists

  5. NREL: A Year in Clean Energy Innovations; A Review of NREL's 2011 Feature Stories

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    This document is a compilation of articles featuring NREL research and development, deployment, commercialization, and outreach activities in 2011. The feature stories can be found online at http:www.nrel.gov/features/.

  6. European Doctoral Academy in Regenerative Engineering

    E-Print Network [OSTI]

    Cesare, Bernardo

    project that is placed along the inter- sectorial innovation pipeline of a number of tissue engineering products and technologies, addressing the clinical needs of cardiac valve repair and replacement technologies. Full descriptions of the research projects available can be found at www

  7. New Regenerative Cycle for Vapor Compression Refrigeration

    SciTech Connect (OSTI)

    Bergander, Mark J [Magnetic Development, Inc.; Butrymowicz, Dariusz [Polish Academy of Scinces

    2010-01-26

    This project was a continuation of Category 1 project, completed in August 2005. Following the successful bench model demonstration of the technical feasibility and economic viability, the main objective in this stage was to fabricate the prototype of the heat pump, working on the new thermodynamic cycle. This required further research to increase the system efficiency to the level consistent with theoretical analysis of the cycle. Another group of objectives was to provide the foundation for commercialization and included documentation of the manufacturing process, preparing the business plan, organizing sales network and raising the private capital necessary to acquire production facilities.

  8. Regen Powertech Pvt 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:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA)OptionsEquivalent URIGum Pvt Ltd

  9. dry-regen | netl.doe.gov

    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-effectWorkingLos AlamosSimulationdetonation detectionDouglas

  10. Biosensor method and system based on feature vector extraction

    DOE Patents [OSTI]

    Greenbaum, Elias; Rodriguez, Jr., Miguel; Qi, Hairong; Wang, Xiaoling

    2013-07-02

    A system for biosensor-based detection of toxins includes providing at least one time-dependent control signal generated by a biosensor in a gas or liquid medium, and obtaining a time-dependent biosensor signal from the biosensor in the gas or liquid medium to be monitored or analyzed for the presence of one or more toxins selected from chemical, biological or radiological agents. The time-dependent biosensor signal is processed to obtain a plurality of feature vectors using at least one of amplitude statistics and a time-frequency analysis. At least one parameter relating to toxicity of the gas or liquid medium is then determined from the feature vectors based on reference to the control signal.

  11. Biosensor method and system based on feature vector extraction

    DOE Patents [OSTI]

    Greenbaum, Elias (Knoxville, TN); Rodriguez, Jr., Miguel (Oak Ridge, TN); Qi, Hairong (Knoxville, TN); Wang, Xiaoling (San Jose, CA)

    2012-04-17

    A method of biosensor-based detection of toxins comprises the steps of providing at least one time-dependent control signal generated by a biosensor in a gas or liquid medium, and obtaining a time-dependent biosensor signal from the biosensor in the gas or liquid medium to be monitored or analyzed for the presence of one or more toxins selected from chemical, biological or radiological agents. The time-dependent biosensor signal is processed to obtain a plurality of feature vectors using at least one of amplitude statistics and a time-frequency analysis. At least one parameter relating to toxicity of the gas or liquid medium is then determined from the feature vectors based on reference to the control signal.

  12. Polar features in the flagellar propulsion of E. coli bacteria

    E-Print Network [OSTI]

    Bianchi, S; Lepore, A; Di Leonardo, R

    2015-01-01

    E. coli bacteria swim following a run and tumble pattern. In the run state all flagella join in a single helical bundle that propels the cell body along approximately straight paths. When one or more flagellar motors reverse direction the bundle unwinds and the cell randomizes its orientation. This basic picture represents an idealization of a much more complex dynamical problem. Although it has been shown that bundle formation can occur at either pole of the cell, it is still unclear whether this two run states correspond to asymmetric propulsion features. Using holographic microscopy we record the 3D motions of individual bacteria swimming in optical traps. We find that most cells possess two run states characterised by different propulsion forces, total torque and bundle conformations. We analyse the statistical properties of bundle reversal and compare the hydrodynamic features of forward and backward running states. Our method is naturally multi-particle and opens up the way towards controlled hydrodynam...

  13. Spatial feature tracking impedence sensor using multiple electric fields

    DOE Patents [OSTI]

    Novak, James L. (Albuquerque, NM)

    1998-01-01

    Linear and other features on a workpiece are tracked by measuring the fields generated between electrodes arrayed in pairs. One electrode in each pair operates as a transmitter and the other as a receiver, and both electrodes in a pair are arrayed on a carrier. By combining and subtracting fields between electrodes in one pair and between a transmitting electrode in one pair and a receiving electrode in another pair, information describing the location and orientation of the sensor relative to the workpiece in up to six degrees of freedom may be obtained. Typical applications will measure capacitance, but other impedance components may be measured as well. The sensor is designed to track a linear feature axis or a protrusion or pocket in a workpiece. Seams and ridges can be tracked by this non-contact sensor. The sensor output is useful for robotic applications.

  14. Classification of interstitial lung disease patterns with topological texture features

    E-Print Network [OSTI]

    Huber, Markus B; Leinsinger, Gerda; Ray, Lawrence A; Wismüller, Axel; 10.1117/12.844318

    2010-01-01

    Topological texture features were compared in their ability to classify morphological patterns known as 'honeycombing' that are considered indicative for the presence of fibrotic interstitial lung diseases in high-resolution computed tomography (HRCT) images. For 14 patients with known occurrence of honey-combing, a stack of 70 axial, lung kernel reconstructed images were acquired from HRCT chest exams. A set of 241 regions of interest of both healthy and pathological (89) lung tissue were identified by an experienced radiologist. Texture features were extracted using six properties calculated from gray-level co-occurrence matrices (GLCM), Minkowski Dimensions (MDs), and three Minkowski Functionals (MFs, e.g. MF.euler). A k-nearest-neighbor (k-NN) classifier and a Multilayer Radial Basis Functions Network (RBFN) were optimized in a 10-fold cross-validation for each texture vector, and the classification accuracy was calculated on independent test sets as a quantitative measure of automated tissue characteriza...

  15. Spatial feature tracking impedence sensor using multiple electric fields

    DOE Patents [OSTI]

    Novak, J.L.

    1998-08-11

    Linear and other features on a workpiece are tracked by measuring the fields generated between electrodes arrayed in pairs. One electrode in each pair operates as a transmitter and the other as a receiver, and both electrodes in a pair are arrayed on a carrier. By combining and subtracting fields between electrodes in one pair and between a transmitting electrode in one pair and a receiving electrode in another pair, information describing the location and orientation of the sensor relative to the workpiece in up to six degrees of freedom may be obtained. Typical applications will measure capacitance, but other impedance components may be measured as well. The sensor is designed to track a linear feature axis or a protrusion or pocket in a workpiece. Seams and ridges can be tracked by this non-contact sensor. The sensor output is useful for robotic applications. 10 figs.

  16. Reactor safety analysis computer program features that enhance user productivity

    SciTech Connect (OSTI)

    Burnett, T.W.T. [Westinghouse Electric Corp., Pittsburgh, PA (United States); Cleaver, B.H. [ABB Government Services, Inc. (United States); Fields, C.C.; McKinney, J.S.; Wooten, L.A. [Westinghouse Savannah River Co., Aiken, SC (United States); Finfrock, S.H. [Westinghouse Hanford Co., Richland, WA (United States)

    1993-09-01

    This paper describes several design features of the MARY computer program that increase user productivity. The MARY program was used to analyze behavior of the Savannah River Site (SRS) K Reactor during postulated nuclear and thermal-hydraulic transients, such as overpower and underflow events, before K Reactor was placed in cold standby in 1993. These analyses provide the bases for portions of the accident chapter of the K-Reactor Safety Analysis Report.

  17. Geographical features of global water cycle during warm geological epochs

    SciTech Connect (OSTI)

    Georgiadi, A.G.

    1996-12-31

    The impact of global warming on the water cycle can be extremely complex and diverse. The goal of the investigation was to estimate the geographic features of the mean annual water budget of the world during climatic optimums of the Holocene and the Eemian interglacial periods. These geological epochs could be used as analogs of climatic warming on 1 degree, centigrade and 2 degrees, centigrade. The author used the results of climatic reconstructions based on a simplified version of a GCM.

  18. Absorption Features in Spectra of Magnetized Neutron Stars

    SciTech Connect (OSTI)

    Suleimanov, V.; Hambaryan, V.; Neuhaeuser, R.; Potekhin, A. Y.; Pavlov, G. G.; Adelsberg, M. van; Werner, K.

    2011-09-21

    The X-ray spectra of some magnetized isolated neutron stars (NSs) show absorption features with equivalent widths (EWs) of 50-200 eV, whose nature is not yet well known.To explain the prominent absorption features in the soft X-ray spectra of the highly magnetized (B{approx}10{sup 14} G) X-ray dim isolated NSs (XDINSs), we theoretically investigate different NS local surface models, including naked condensed iron surfaces and partially ionized hydrogen model atmospheres, with semi-infinite and thin atmospheres above the condensed surface. We also developed a code for computing light curves and integral emergent spectra of magnetized neutron stars with various temperature and magnetic field distributions over the NS surface. We compare the general properties of the computed and observed light curves and integral spectra for XDINS RBS 1223 and conclude that the observations can be explained by a thin hydrogen atmosphere above the condensed iron surface, while the presence of a strong toroidal magnetic field component on the XDINS surface is unlikely.We suggest that the harmonically spaced absorption features in the soft X-ray spectrum of the central compact object (CCO) 1E 1207.4-5209 (hereafter 1E 1207) correspond to peaks in the energy dependence of the free-free opacity in a quantizing magnetic field, known as quantum oscillations. To explore observable properties of these quantum oscillations, we calculate models of hydrogen NS atmospheres with B{approx}10{sup 10}-10{sup 11} G(i.e., electron cyclotron energy E{sub c,e}{approx}0.1-1 keV) and T{sub eff} = 1-3 MK. Such conditions are thought to be typical for 1E 1207. We show that observable features at the electron cyclotron harmonics with EWs {approx_equal}100-200 eV can arise due to these quantum oscillations.

  19. An Ontology Design Pattern for Surface Water Features

    SciTech Connect (OSTI)

    Sinha, Gaurav; Mark, David; Kolas, Dave; Varanka, Dalia; Romero, Boleslo E; Feng, Chen-Chieh; Usery, Lynn; Liebermann, Joshua; Sorokine, Alexandre

    2014-01-01

    Surface water is a primary concept of human experience but concepts are captured in cultures and languages in many different ways. Still, many commonalities can be found due to the physical basis of many of the properties and categories. An abstract ontology of surface water features based only on those physical properties of landscape features has the best potential for serving as a foundational domain ontology. It can then be used to systematically incor-porate concepts that are specific to a culture, language, or scientific domain. The Surface Water ontology design pattern was developed both for domain knowledge distillation and to serve as a conceptual building-block for more complex surface water ontologies. A fundamental distinction is made in this on-tology between landscape features that act as containers (e.g., stream channels, basins) and the bodies of water (e.g., rivers, lakes) that occupy those containers. Concave (container) landforms semantics are specified in a Dry module and the semantics of contained bodies of water in a Wet module. The pattern is imple-mented in OWL, but Description Logic axioms and a detailed explanation is provided. The OWL ontology will be an important contribution to Semantic Web vocabulary for annotating surface water feature datasets. A discussion about why there is a need to complement the pattern with other ontologies, es-pecially the previously developed Surface Network pattern is also provided. Fi-nally, the practical value of the pattern in semantic querying of surface water datasets is illustrated through a few queries and annotated geospatial datasets.

  20. Features of an Atkinson two-stroke engine

    SciTech Connect (OSTI)

    Brooks, J.; Lane, A.

    1994-09-01

    A two-stroke Atkinson cycle engine is described. The engine has uniflow stratified mixture scavenging with a variably phased spherical rotary valve in the cylinder head and exhaust ports in the cylinder wall. These features combined in this configuration result in reduced fuel consumption, higher specific power output, less vibration, and smooth part load operation albeit increased size and cost compared to simple two-stroke engines used in power tools. 29 refs., 4 figs., 1 tab.

  1. WellcomeHistoryISSUE 40 SPRING 2009 Feature article 2

    E-Print Network [OSTI]

    Rambaut, Andrew

    WellcomeHistoryISSUE 40 SPRING 2009 Feature article 2 Child mortality in Uruguay oxFord uNit 5 Wor and the people reSearcH reSourceS 18 Broadmoor Hospital archive booK revieWS 20 caleNdar 24 #12;2 Manchester unit: Radcliffe Square in Oxford. Line engraving after James Gibbs. See pages 5­15 on the Oxford Wellcome Unit

  2. Linear feature selection and the probability of misclassification 

    E-Print Network [OSTI]

    Darcey, Louise Wilson

    1974-01-01

    ) (Member) May 1974 ABSTRACT Linear Feature Selecti. on and the Probability of Misclassification. (May 1974) Louise Wilson Darcey, B. S. , University of Texas at Austin Chairman of Advisory Committee: Dr. L. F. Guseman, Jr. A classifi. cation... procedure for n-dimensional normally distributed observation vectors which belong to one of two populations is described. In particular, a computational procedure is presented for finding a lxn vector B which minimizes the probability...

  3. Deep PDF parsing to extract features for detecting embedded malware.

    SciTech Connect (OSTI)

    Munson, Miles Arthur; Cross, Jesse S. (Missouri University of Science and Technology, Rolla, MO)

    2011-09-01

    The number of PDF files with embedded malicious code has risen significantly in the past few years. This is due to the portability of the file format, the ways Adobe Reader recovers from corrupt PDF files, the addition of many multimedia and scripting extensions to the file format, and many format properties the malware author may use to disguise the presence of malware. Current research focuses on executable, MS Office, and HTML formats. In this paper, several features and properties of PDF Files are identified. Features are extracted using an instrumented open source PDF viewer. The feature descriptions of benign and malicious PDFs can be used to construct a machine learning model for detecting possible malware in future PDF files. The detection rate of PDF malware by current antivirus software is very low. A PDF file is easy to edit and manipulate because it is a text format, providing a low barrier to malware authors. Analyzing PDF files for malware is nonetheless difficult because of (a) the complexity of the formatting language, (b) the parsing idiosyncrasies in Adobe Reader, and (c) undocumented correction techniques employed in Adobe Reader. In May 2011, Esparza demonstrated that PDF malware could be hidden from 42 of 43 antivirus packages by combining multiple obfuscation techniques [4]. One reason current antivirus software fails is the ease of varying byte sequences in PDF malware, thereby rendering conventional signature-based virus detection useless. The compression and encryption functions produce sequences of bytes that are each functions of multiple input bytes. As a result, padding the malware payload with some whitespace before compression/encryption can change many of the bytes in the final payload. In this study we analyzed a corpus of 2591 benign and 87 malicious PDF files. While this corpus is admittedly small, it allowed us to test a system for collecting indicators of embedded PDF malware. We will call these indicators features throughout the rest of this report. The features are extracted using an instrumented PDF viewer, and are the inputs to a prediction model that scores the likelihood of a PDF file containing malware. The prediction model is constructed from a sample of labeled data by a machine learning algorithm (specifically, decision tree ensemble learning). Preliminary experiments show that the model is able to detect half of the PDF malware in the corpus with zero false alarms. We conclude the report with suggestions for extending this work to detect a greater variety of PDF malware.

  4. 1 Copyright 2014 by ASME Proceedings of the 2014 Joint Rail Conference

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    operations, regenerative braking is one practical way for saving energy because it enables the kinetic energy-unit railcars are converted into generators, and electricity generated from kinetic energy of the train trains, the excess energy must be dissipated by the resistors on-board the train where electrical power

  5. Cost Analysis of Fuel Cell Systems for Transportation

    E-Print Network [OSTI]

    /FreedomCar guidelines. Packaging (Piping, Electrical, .....) Start-up Power (battery); Anode Tailgas Burner Included in DOE PEMFC System Analyzed Fuel Tank · Power Conditioning · Electric Motor · Electric Drive Train · Regenerative Braking System (Battery) Managers (Controllers and Sensors) Air Thermal Water Safety Other: · AC

  6. JOURNAL OF NATURAL RESOURCES & LIFE SCIENCES EDUCATION VOLUME 38 2009 87 exceeds the harvesting rate, forest carbon uptake during

    E-Print Network [OSTI]

    Grogan, Paul

    , and lifestyle/ social dimensions. For example, is an energy-efficient hybrid car (with regenerative braking the harvesting rate, forest carbon uptake during growth of new trees in the harvested forest or woodlot offsets, Increasing energy costs as well as concerns about climate change associated with fossil fuel use have

  7. Feature Selection for Disruption Prediction from Scratch in JET by using Genetic Algorithms and Probabilistic Predictors

    E-Print Network [OSTI]

    Feature Selection for Disruption Prediction from Scratch in JET by using Genetic Algorithms and Probabilistic Predictors

  8. FEATURE EXTRACTION FOR INTEGRATED PATTERN RECOGNITION SYSTEMS X. Wang and K. K. Paliwal

    E-Print Network [OSTI]

    methods. However, the drawback of independent feature extraction algorithms is that their optimization criFEATURE EXTRACTION FOR INTEGRATED PATTERN RECOGNITION SYSTEMS X. Wang and K. K. Paliwal School is achieved in two steps: parameter extraction and feature extraction. Feature extraction and pattern

  9. Some New Features for Protein Fold Prediction Nikhil Ranjan Pal and Debrup Chakraborty

    E-Print Network [OSTI]

    Chakraborty, Debrup

    sets of features based on hydrophobicity of amino acids. Each such set has 400 features which properties of the amino acids are used as features. For example, they used the relative hydrophobicity are motivated by folding energy modeling. To define these features we have considered pair-wise amino acids (AA

  10. Electrochemical planarization of copper surfaces with submicron features

    SciTech Connect (OSTI)

    Chalupa, R.; Andryushchenko, T.; Han, J.; Ghosh, T.; Shankar, S.; Fischer, P. [Design Technology Solutions Department, Intel Corporation, Hillsboro, Oregon 97124 (United States); Components Research Department, Intel Corporation, Hillsboro, Oregon 97124 (United States); Design Technology Solutions Department, Intel Corporation, Hillsboro, Oregon 97124 (United States); Components Research Department, Intel Corporation, Hillsboro, Oregon 97124 (United States)

    2007-07-15

    Electrochemical planarization (ECP) of copper surfaces in a phosphoric acid-based electrolyte solution is discussed. A first-principles, quantum chemistry modeling work is presented that further validates the water-facilitated (and water rate limited) chemistry model for copper oxidation at the anode. This model has been previously deduced by other researchers [R. Vidal and A. West, J. Electrochem. Soc. 142, 2689 (1995); B. Du and I. I. Suni, J. Appl. Electrochem. 34, 1215 (2004); R. Vidal and A. West J. Electrochem. Soc. 142, 2682 (1995)] based on electrochemical experiments. Resulting water-limited model is validated against experimental data and applied to study the planarization behavior of a set of surface features. Aspect ratios and dimensions of these features were chosen to represent realistic (nonidealized, low aspect ratio structures) post-Damascene electroplate surface topography. Results are presented in a form of remaining feature amplitude versus mean copper thickness removed [A. C. West et al., J. Electrochem. Soc. 152, C652 (2005)]--allowing at-a-glance evaluation of the process against desired targets. The dominant effects of the mass transport boundary layer (BL) thickness on this planarization efficiency are discussed as are the challenges seen at typical flow conditions in ECP systems. Impact of changing the BL thickness and the requisite modulation of flow conditions analysis is included. Insights into practical challenges associated with BL buildup transient and associated surface roughening are summarized [D. Padhi et al., J. Electrochem. Soc. 150, 610 (2003)]. Challenges of applying ECP as a straightforward substitute to the robust chemical mechanical polish (CMP) process are significant. Practical modifications to upstream process flow to enable ECP would include optimized electroplating process or a CMP preprocessing step.

  11. Photovoltaic building sheathing element with anti-slide features

    DOE Patents [OSTI]

    Keenihan, James R.; Langmaid, Joseph A.; Lopez, Leonardo C.

    2015-09-08

    The present invention is premised` upon an assembly that includes at least a photovoltaic building sheathing element capable of being affixed on a building structure, the photovoltaic building sheathing element. The element including a photovoltaic cell assembly, a body portion attached to one or more portions of the photovoltaic cell assembly; and at feast a first and a second connector assembly capable of directly or indirectly electrically connecting the photovoltaic cell assembly to one or more adjoining devices; wherein the body portion includes one or more geometric features adapted to engage a vertically adjoining device before installation.

  12. Alignment of LC-MS Data Using Peptide Features 

    E-Print Network [OSTI]

    Tang, Xincheng

    2012-02-14

    Desorption Ionization MS Mass Spectrometry MS/MS Tandem Mass Spectrometry M/Z Mass-To-Charge Ratio PNNL Paci c Northwest National Laboratory RT Retention Time SELDI Surface Enhanced Laser Desorption Ionization TOF Time-Of-Flight vi TABLE OF CONTENTS... the raw spectrum data and the information of the detected peak features for peptide alignment. In this paper, two Shewanella datasets are obtained from Paci c Northwest Na- tional Laboratory (PNNL) and they were analyzed by SEQUEST on di erent days...

  13. Towards general patterns of features in multi-field inflation

    E-Print Network [OSTI]

    Xian Gao; Jinn-Ouk Gong

    2015-06-29

    We investigate the consequences of general curved trajectories in multi-field inflation. After setting up a completely general formalism using the mass basis, which naturally accommodates the notion of light and heavy modes, we study in detail the simple case of two successive turns in two-field system. We find the power spectrum of the curvature perturbation receives corrections that exhibit oscillatory features sinusoidal in the logarithm of the comoving wavenumber without slow-roll suppression. We show that this is because of the resonance of the heavy modes inside and outside the mass horizon.

  14. 5f Magnetism--Specific Features And Boundaries

    SciTech Connect (OSTI)

    Havela, Ladislav; Maskova, Silvie; Adamska, Anna; Pesicka, J.; Andreev, Alexander V.; Shick, Alexander; Gouder, Thomas; Kim-Ngan, N.-H.; Balogh, Adam G.

    2011-06-30

    Magnetism of light actinides exhibits fascinating and potentially useful features. One of them is a giant anisotropy of the two-ion type, apparent mostly in U-based systems. Here we demonstrate on the example of U{sub 2}Ni{sub 2}Sn and its hydride the anisotropy switches over the direction of U moments on a very fine scale. The study of amorphous sputter deposited UFe{sub x} films reveals how the Curie temperature can be tuned so as to exceed the room temperature.

  15. Featured Projects: Center for Materials at Irradiation and Mechanical

    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 of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergy Technologies |Feature Stories ThreeExtremes:

  16. Primordial features due to a step in the inflaton potential

    SciTech Connect (OSTI)

    Hazra, Dhiraj Kumar; Sriramkumar, L. [Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211 019 (India); Aich, Moumita; Souradeep, Tarun [IUCAA, Post Bag 4, Ganeshkhind, Pune 411 007 (India); Jain, Rajeev Kumar, E-mail: dhiraj@hri.res.in, E-mail: moumita@iucaa.ernet.in, E-mail: rajeev.jain@unige.ch, E-mail: sriram@hri.res.in, E-mail: tarun@iucaa.ernet.in [Department of Theoretical Physics, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211, Geneva 4 (Switzerland)

    2010-10-01

    Certain oscillatory features in the primordial scalar power spectrum are known to provide a better fit to the outliers in the cosmic microwave background data near the multipole moments of l = 22 and 40. These features are usually generated by introducing a step in the popular, quadratic potential describing the canonical scalar field. Such a model will be ruled out, if the tensors remain undetected at a level corresponding to a tensor-to-scalar ratio of, say, r ? 0.1. In this work, in addition to the popular quadratic potential, we investigate the effects of the step in a small field model and a tachyon model. With possible applications to future datasets (such as PLANCK) in mind, we evaluate the tensor power spectrum exactly, and include its contribution in our analysis. We compare the models with the WMAP (five as well as seven-year), the QUaD and the ACBAR data. As expected, a step at a particular location and of a suitable magnitude and width is found to improve the fit to the outliers (near l = 22 and 40) in all these cases. We point out that, if the tensors prove to be small (say, r?<0.01), the quadratic potential and the tachyon model will cease to be viable, and more attention will need to be paid to examples such as the small field models.

  17. Polar features in the flagellar propulsion of E. coli bacteria

    E-Print Network [OSTI]

    S. Bianchi; F. Saglimbeni; A. Lepore; R. Di Leonardo

    2015-06-30

    E. coli bacteria swim following a run and tumble pattern. In the run state all flagella join in a single helical bundle that propels the cell body along approximately straight paths. When one or more flagellar motors reverse direction the bundle unwinds and the cell randomizes its orientation. This basic picture represents an idealization of a much more complex dynamical problem. Although it has been shown that bundle formation can occur at either pole of the cell, it is still unclear whether this two run states correspond to asymmetric propulsion features. Using holographic microscopy we record the 3D motions of individual bacteria swimming in optical traps. We find that most cells possess two run states characterised by different propulsion forces, total torque and bundle conformations. We analyse the statistical properties of bundle reversal and compare the hydrodynamic features of forward and backward running states. Our method is naturally multi-particle and opens up the way towards controlled hydrodynamic studies of interacting swimming cells.

  18. Silicate features in Galactic and extragalactic post-AGB discs

    E-Print Network [OSTI]

    Gielen, C; Van Winckel, H; Evans, T Lloyd; Woods, P M; Kemper, F; Marengo, M; Meixner, M; Sloan, G C; Tielens, A G G M

    2011-01-01

    Aims. In this paper we study the Spitzer and TIMMI2 infrared spectra of post-AGB disc sources, both in the Galaxy and the LMC. Using the observed infrared spectra we determine the mineralogy and dust parameters of the discs, and look for possible differences between the Galactic and extragalactic sources. Methods. Modelling the full spectral range observed allows us to determine the dust species present in the disc and different physical parameters such as grain sizes, dust abundance ratios, and the dust and continuum temperatures. Results. We find that all the discs are dominated by emission features of crystalline and amorphous silicate dust. Only a few sample sources show features due to CO2 gas or carbonaceous molecules such as PAHs and C60 fullerenes. Our analysis shows that dust grain processing in these discs is strong, resulting in large average grain sizes and a very high crystallinity fraction. However, we do not find any correlations between the derived dust parameters and properties of the central...

  19. THE THOMSON SURFACE. III. TRACKING FEATURES IN 3D

    SciTech Connect (OSTI)

    Howard, T. A.; DeForest, C. E.; Tappin, S. J.; Odstrcil, D.

    2013-03-01

    In this, the final installment in a three-part series on the Thomson surface, we present simulated observations of coronal mass ejections (CMEs) observed by a hypothetical polarizing white light heliospheric imager. Thomson scattering yields a polarization signal that can be exploited to locate observed features in three dimensions relative to the Thomson surface. We consider how the appearance of the CME changes with the direction of trajectory, using simulations of a simple geometrical shape and also of a more realistic CME generated using the ENLIL model. We compare the appearance in both unpolarized B and polarized pB light, and show that there is a quantifiable difference in the measured brightness of a CME between unpolarized and polarized observations. We demonstrate a technique for using this difference to extract the three-dimensional (3D) trajectory of large objects such as CMEs. We conclude with a discussion on how a polarizing heliospheric imager could be used to extract 3D trajectory information about CMEs or other observed features.

  20. Automated feature detection and identification in digital point-ordered signals

    DOE Patents [OSTI]

    Oppenlander, Jane E. (Burnt Hills, NY); Loomis, Kent C. (Clifton Park, NY); Brudnoy, David M. (Albany, NY); Levy, Arthur J. (Schenectady, NY)

    1998-01-01

    A computer-based automated method to detect and identify features in digital point-ordered signals. The method is used for processing of non-destructive test signals, such as eddy current signals obtained from calibration standards. The signals are first automatically processed to remove noise and to determine a baseline. Next, features are detected in the signals using mathematical morphology filters. Finally, verification of the features is made using an expert system of pattern recognition methods and geometric criteria. The method has the advantage that standard features can be, located without prior knowledge of the number or sequence of the features. Further advantages are that standard features can be differentiated from irrelevant signal features such as noise, and detected features are automatically verified by parameters extracted from the signals. The method proceeds fully automatically without initial operator set-up and without subjective operator feature judgement.

  1. Non-contact feature detection using ultrasonic Lamb waves

    DOE Patents [OSTI]

    Sinha, Dipen N. (Los Alamos, NM)

    2011-06-28

    Apparatus and method for non-contact ultrasonic detection of features on or within the walls of hollow pipes are described. An air-coupled, high-power ultrasonic transducer for generating guided waves in the pipe wall, and a high-sensitivity, air-coupled transducer for detecting these waves, are disposed at a distance apart and at chosen angle with respect to the surface of the pipe, either inside of or outside of the pipe. Measurements may be made in reflection or transmission modes depending on the relative position of the transducers and the pipe. Data are taken by sweeping the frequency of the incident ultrasonic waves, using a tracking narrow-band filter to reduce detected noise, and transforming the frequency domain data into the time domain using fast Fourier transformation, if required.

  2. Feature-preserving interpolation and filtering of environmental time series

    E-Print Network [OSTI]

    Mariethoz, Gregoire; Jougnot, Damien; Rezaee, Hassan

    2015-01-01

    We propose a method for filling gaps and removing interferences in time series for applications involving continuous monitoring of environmental variables. The approach is non-parametric and based on an iterative pattern-matching between the affected and the valid parts of the time series. It considers several variables jointly in the pattern matching process and allows preserving linear or non-linear dependences between variables. The uncertainty in the reconstructed time series is quantified through multiple realizations. The method is tested on self-potential data that are affected by strong interferences as well as data gaps, and the results show that our approach allows reproducing the spectral features of the original signal. Even in the presence of intense signal perturbations, it significantly improves the signal and corrects bias introduced by asymmetrical interferences. Potential applications are wide-ranging, including geophysics, meteorology and hydrology.

  3. Critical-like Features of Stress Response in Frictional Packings

    E-Print Network [OSTI]

    Abdullah Cakir; Leonardo E. Silbert

    2015-02-25

    The mechanical response of static, unconfined, overcompressed face centred cubic, granular arrays is studied using large-scale, discrete element method simulations. Specifically, the stress response due to the application of a localised force perturbation - the Green function technique - is obtained in granular packings generated over several orders of magnitude in both the particle friction coefficient and the applied forcing. We observe crossover behaviour in the mechanical state of the system characterised by the changing nature of the resulting stress response. The transition between anisotropic and isotropic stress response exhibits critical-like features through the identification of a diverging length scale that distinguishes the spatial extent of anisotropic regions from those that display isotropic behaviour. A multidimensional phase diagram is constructed that parameterises the response of the system due to changing friction and force perturbations.

  4. Powerline Communications Channel Modelling Methodology Based on Statistical Features

    E-Print Network [OSTI]

    Tan, Bo

    2012-01-01

    This paper proposes a new channel modelling method for powerline communications networks based on the multipath profile in the time domain. The new channel model is developed to be applied in a range of Powerline Communications (PLC) research topics such as impulse noise modelling, deployment and coverage studies, and communications theory analysis. To develop the methodology, channels are categorised according to their propagation distance and power delay profile. The statistical multipath parameters such as path arrival time, magnitude and interval for each category are analyzed to build the model. Each generated channel based on the proposed statistical model represents a different realisation of a PLC network. Simulation results in similar the time and frequency domains show that the proposed statistical modelling method, which integrates the impact of network topology presents the PLC channel features as the underlying transmission line theory model. Furthermore, two potential application scenarios are d...

  5. Generic emergence of classical features in quantum Darwinism

    E-Print Network [OSTI]

    Fernando G. S. L. Brandao; Marco Piani; Pawel Horodecki

    2015-08-26

    Quantum Darwinism explains the emergence of classical reality from the underlying quantum reality by the fact that a quantum system is observed indirectly, by looking at parts of its environment, so that only specific information about the system that is redundantly proliferated to many parts of the environment becomes accessible and objective. However it is not clear under what conditions this mechanism holds true. Here we rigorously prove that the emergence of classicality is a general feature of any quantum dynamics: observers who acquire information about a quantum system indirectly have access at most to classical information about one and the same measurement of the quantum system; moreover, if such information is available to many observers, they necessarily agree. Remarkably, our analysis goes beyond the system-environment categorization. We also provide a full characterization of the so-called quantum discord in terms of local redistribution of correlations.

  6. Features, Events, and Processes in UZ and Transport

    SciTech Connect (OSTI)

    P. Persoff

    2004-11-06

    The purpose of this report is to evaluate and document the inclusion or exclusion of the unsaturated zone (UZ) features, events, and processes (FEPs) with respect to modeling that supports the total system performance assessment (TSPA) for license application (LA) for a nuclear waste repository at Yucca Mountain, Nevada. A screening decision, either ''Included'' or ''Excluded'', is given for each FEP, along with the technical basis for the screening decision. This information is required by the U.S. Nuclear Regulatory Commission (NRC) in 10 CFR 63.114 (d, e, and f) [DIRS 156605]. The FEPs deal with UZ flow and radionuclide transport, including climate, surface water infiltration, percolation, drift seepage, and thermally coupled processes. This analysis summarizes the implementation of each FEP in TSPA-LA (that is, how the FEP is included) and also provides the technical basis for exclusion from TSPA-LA (that is, why the FEP is excluded). This report supports TSPA-LA.

  7. Features, Events and Processes in UZ Flow and Transport

    SciTech Connect (OSTI)

    P. Persoff

    2005-08-04

    The purpose of this report is to evaluate and document the inclusion or exclusion of the unsaturated zone (UZ) features, events, and processes (FEPs) with respect to modeling that supports the total system performance assessment (TSPA) for license application (LA) for a nuclear waste repository at Yucca Mountain, Nevada. A screening decision, either Included or Excluded, is given for each FEP, along with the technical basis for the screening decision. This information is required by the U.S. Nuclear Regulatory Commission (NRC) in 10 CFR 63.114 (d, e, and f) [DIRS 173273]. The FEPs deal with UZ flow and radionuclide transport, including climate, surface water infiltration, percolation, drift seepage, and thermally coupled processes. This analysis summarizes the implementation of each FEP in TSPA-LA (that is, how the FEP is included) and also provides the technical basis for exclusion from TSPA-LA (that is, why the FEP is excluded). This report supports TSPA-LA.

  8. Centrifugal Casting Features/Metallurgical Characterization of Aluminum Alloys

    SciTech Connect (OSTI)

    Chirita, G.; Soares, D.; Cruz, D.; Silva, F. S. [Mechanical Engineering Department, School of Engineering, Minho University (Portugal); Stefanescu, I. [Faculty of Mechanical Engineering, Dunarea de Jos University Galati (Romania)

    2008-02-15

    This paper deals with the study of centrifugal effects on aluminium castings under high G values. Most of the studies in this domain (FGMs obtained by centrifugal casting) deal with functionally graded composites reinforced with a solid phase such as silicon particles or others. However, in this study it will be shown that unreinforced aluminium alloys may be significantly influenced by the centrifugal effect and that functionally graded castings are also obtained. It has been observed that the centrifugal effect may increase in some alloys, depending on the relative position in the castings, the rupture strength by approx. 50%, and rupture strain by about 300%, as compared to the gravity casting technique. The Young's modulus may also increase by about 20%. It has also been reported that in vertical centrifugal castings there are mainly three aspects that affect the components thus obtained, namely: fluid dynamics; vibration (inherent to the system); and centrifugal force. These features have a different effect on the castings depending on the aluminium alloy. In this paper, an analysis of the most important effects of the centrifugal casting process on metallurgical features is conducted. A solidification characterization at several points along the mould will be made in order to have an accurate idea of both the fluid dynamics inside the mould during the casting and the solidification behavior in different parts of the component. These two analyses will be related to the metallurgical properties (phase distribution; SDAS; eutectic silicon content and shape, pores density and shape) along the component and mainly along the direction of the centrifugal pressure. A comparison between castings obtained by both centrifugal casting technique and gravity casting technique is made for reference (gravity casting)

  9. Feature Shape and Elevation Based Road Classification and Extraction on High Spatial

    E-Print Network [OSTI]

    Carbonara, Joaquin

    Feature Shape and Elevation Based Road Classification and Extraction on High Spatial Resolution #12; 2 Abstract: Classification and extraction of geospatial features from high spatial resolution. However, the conventional method of human interpretation and digitizing cannot fulfill the requirements

  10. Implementation of efficient algorithms for the computation of morphological texture features 

    E-Print Network [OSTI]

    Patel, Manish J

    1998-01-01

    restraining factors in the use of morphological granulometric features. These features are increasingly being found to be elective in applications such as medical image interpretation. Hence, there is a need to find efficient ways to compute grey...

  11. Features and numerical Tools Laplace Biharmonic Helmholtz Maxwell Solving Fredholm second kind integral equations

    E-Print Network [OSTI]

    Kim, Yong Jung

    Features and numerical Tools Laplace Biharmonic Helmholtz Maxwell Solving Fredholm second kind and numerical Tools Laplace Biharmonic Helmholtz Maxwell Outline Recursively Compressed Inverse Preconditioning. There are, of course, other methods. #12;Features and numerical Tools Laplace Biharmonic Helmholtz Maxwell

  12. Maximum a Posteriori Models for Cortical Modeling: Feature Detectors, Topography and Modularity

    E-Print Network [OSTI]

    Weber, Cornelius

    Maximum a Posteriori Models for Cortical Modeling: Feature Detectors, Topography and Modularity Modeling: Feature Detectors, Topography and Modularity PhD Thesis by Cornelius Weber, Berlin, July 31, 2000

  13. AUDIO GENRE CLASSIFICATION USING PERCUSSIVE PATTERN CLUSTERING COMBINED WITH TIMBRAL FEATURES

    E-Print Network [OSTI]

    Tzanetakis, George

    characterize different genres and styles of music directly from audio signals. In previous research, timbralAUDIO GENRE CLASSIFICATION USING PERCUSSIVE PATTERN CLUSTERING COMBINED WITH TIMBRAL FEATURES Emiru features. Index Terms-- Audio genre classification, Percussive sound, Dynamic programming, Pattern

  14. Nasal codas in Standard Chinese : a study in the framework of the distinctive feature theory

    E-Print Network [OSTI]

    Mou, Xiaomin, 1977-

    2006-01-01

    Nasal codas in English and Standard Chinese (SC) are compared to distinguish between the acoustic correlates of language-universal distinctive features and language-specific enhancing attributes. The distinctive feature ...

  15. A Feature-Based, Robust, Hierarchical Algorithm for Registering Pairs of Images

    E-Print Network [OSTI]

    Radke, Rich

    overlaps compare favorably with retinal image registration techniques published in the literature. Index TermsÐRobust estimation, registration, transformation estimation, image mosaic, retinal imaging, feature extraction, feature refinement, multiscale methods, ophthalmic image processing, biomedical image processing

  16. PRELUDE TO SUSTAINABILIT Y: ENDING OVERFISHING IN U.S. FISHERIES FEATURE ARTICLE 1

    E-Print Network [OSTI]

    to Sustainability: Ending Overfishing in u.S. fisheries Feature Article 1 GALEN R. TROMBLE DEBRA M. LAMBERT LEE R

  17. PHYSICAL, MAGNETIC, SEDIMENTOLOGICAL, GEOCHEMICAL, ISOTOPIC AND MICROPALEONTOLOGICAL FEATURES OF RAPIDLY DEPOSITED

    E-Print Network [OSTI]

    PHYSICAL, MAGNETIC, SEDIMENTOLOGICAL, GEOCHEMICAL, ISOTOPIC AND MICROPALEONTOLOGICAL FEATURES Sediments, Québec City. Symposium preceedings: 103-108. ABSTRACT: Sedimentological, geochemical, isotopic

  18. NREL: A Year in Clean Energy Innovations: A Review of NREL's Feature Stories

    SciTech Connect (OSTI)

    Not Available

    2010-01-01

    The publication is a compilation of various feature stories published on NREL's public Web site, nrel.gov, throughout 2009.

  19. | JANUARY/FEBRUARY 2014 | Hydro INTERNATIONAL22 symbols and features used on a

    E-Print Network [OSTI]

    New Hampshire, University of

    | JANUARY/FEBRUARY 2014 | Hydro INTERNATIONAL22 symbols and features used on a nautical chart #12;Hydro INT

  20. Articulatory features for speech-driven head motion synthesis Atef Ben-Youssef 1

    E-Print Network [OSTI]

    Edinburgh, University of

    the very low frame-wise correlations they found between the speech and head motion features, it was shownArticulatory features for speech-driven head motion synthesis Atef Ben-Youssef 1 , Hiroshi investigates the use of articulatory features for speech-driven head motion synthesis as opposed to prosody fea

  1. Distribution and Habitat Associations of Billfish and Swordfish Larvae across Mesoscale Features in the Gulf

    E-Print Network [OSTI]

    Rooker, Jay R.

    Distribution and Habitat Associations of Billfish and Swordfish Larvae across Mesoscale Features additive models (GAMs). Mesoscale features in the NGoM affected the distribution and abundance of billfish and Swordfish Larvae across Mesoscale Features in the Gulf of Mexico. PLoS ONE 7(4): e34180. doi:10.1371/journal

  2. Sequence-driven features for prediction of subcellular localization of proteins

    E-Print Network [OSTI]

    Choi, Seungjin

    Sequence-driven features for prediction of subcellular localization of proteins Jong Kyoung Kim of a protein plays an important role in inferring the function of the protein. Feature extraction is a critical features from protein sequence data. The method employs local and global pairwise sequence alignment scores

  3. Visual Servoing for Tracking Features in Urban Areas Using an Autonomous Helicopter

    E-Print Network [OSTI]

    Sukhatme, Gaurav S.

    Visual Servoing for Tracking Features in Urban Areas Using an Autonomous Helicopter Abstract of a vision-based feature tracker for an autonomous helicopter. Using vision in the control loop allows estimating the position and velocity of a set of features with respect to the helicopter. The helicopter

  4. Detection and Tracking of External Features in an Urban Environment Using an Autonomous

    E-Print Network [OSTI]

    Sukhatme, Gaurav S.

    Detection and Tracking of External Features in an Urban Environment Using an Autonomous Helicopter-based approach to detect and track features in a structured environment using an autonomous helicopter. Using vision as a sensor enables the helicopter to track features in an urban environment. We use vision

  5. Application of a Probability-Based Algorithm to Extraction of Product Features from Online Reviews

    E-Print Network [OSTI]

    shopper wants a digital camera--perhaps one with good image quality and battery life. Unfortunately that discuss the right features (battery life and image quality) rather than other features (such as lenses ("digital camera") and present a set of de- sired features ("image quality and battery life"). The user

  6. Semantic Film Preview Classification Using Low-Level Computable Features Zeeshan Rasheed Yaser Sheikh Mubarak Shah

    E-Print Network [OSTI]

    Sheikh, Yaser Ajmal

    Semantic Film Preview Classification Using Low-Level Computable Features Zeeshan Rasheed Yaser Orlando, Fl 32826, USA Abstract This paper presents a framework for the classification of feature films- mantic film interpretation, currently using low-level video features and knowledge of ubiquitous

  7. Introduction Lyrics feature sets Experiments Conclusions and future work Combination of Audio &

    E-Print Network [OSTI]

    Rauber,Andreas

    to `traditional' bag-of-words · Compare to audio features · Rhythm Patterns (RP) · Rhythm Histograms (RHIntroduction Lyrics feature sets Experiments Conclusions and future work Combination of Audio & Lyrics Features for Genre Classication in Digital Audio Collections Rudolf Mayer, Andreas Rauber Vienna

  8. A Fast Texture Feature Extraction Method for Region-based Image Segmentation

    E-Print Network [OSTI]

    Fritts, Jason

    A Fast Texture Feature Extraction Method for Region-based Image Segmentation Hui Zhang* , Jason E. In this paper, we propose a novel fast texture feature extraction method which takes advantage a novel fast texture feature extraction method which takes advantage of the similarities between

  9. Comparative Studies on Feature Extraction Methods for Multispectral Remote Sensing Image Classification

    E-Print Network [OSTI]

    Lyu, Michael R.

    Comparative Studies on Feature Extraction Methods for Multispectral Remote Sensing Image, it is necessary to study methods regarding how to extract the main features of the image effectively to extract the most available features. These methods include the Euclid distance measurement (EDM

  10. Lung Sound Recognition Using Model-Theory Based Feature Selection and Fusion

    E-Print Network [OSTI]

    Kokar, Mieczyslaw M.

    Lung Sound Recognition Using Model-Theory Based Feature Selection and Fusion Zbigniew Korona recognition methodology to the recognition of lung sounds. Two main features of this method- ology are features using an entropy-based criterion. To evaluate the methodology we used both normal lung sounds

  11. Features as Service Transformers Glenn Bruns and Peter Mataga and Ian Sutherland

    E-Print Network [OSTI]

    Bruns, Glenn

    Features as Service Transformers Glenn Bruns and Peter Mataga and Ian Sutherland Software of telecommunications companies is to reduce time to market. An obstacle to this goal in telephone switching equipment a feature is seen as a service transformer. We then define two notions of feature inter­ action

  12. An SVM-based algorithm for identification of photosynthesis-specific genome features

    E-Print Network [OSTI]

    An SVM-based algorithm for identification of photosynthesis-specific genome features Gong-Xin Yua for identification and functional characterization of "key" genome features responsible for a particular biochemical process of interest. The central idea behind our algorithm is that individual genome features (or

  13. Feature Detection, Characterization and Confirmation Methodology: Final Report

    SciTech Connect (OSTI)

    Karasaki, Kenzi; Apps, John; Doughty, Christine; Gwatney, Hope; Onishi, Celia Tiemi; Trautz, Robert; Tsang, Chin-Fu

    2007-03-01

    This is the final report of the NUMO-LBNL collaborative project: Feature Detection, Characterization and Confirmation Methodology under NUMO-DOE/LBNL collaboration agreement, the task description of which can be found in the Appendix. We examine site characterization projects from several sites in the world. The list includes Yucca Mountain in the USA, Tono and Horonobe in Japan, AECL in Canada, sites in Sweden, and Olkiluoto in Finland. We identify important geologic features and parameters common to most (or all) sites to provide useful information for future repository siting activity. At first glance, one could question whether there was any commonality among the sites, which are in different rock types at different locations. For example, the planned Yucca Mountain site is a dry repository in unsaturated tuff, whereas the Swedish sites are situated in saturated granite. However, the study concludes that indeed there are a number of important common features and parameters among all the sites--namely, (1) fault properties, (2) fracture-matrix interaction (3) groundwater flux, (4) boundary conditions, and (5) the permeability and porosity of the materials. We list the lessons learned from the Yucca Mountain Project and other site characterization programs. Most programs have by and large been quite successful. Nonetheless, there are definitely 'should-haves' and 'could-haves', or lessons to be learned, in all these programs. Although each site characterization program has some unique aspects, we believe that these crosscutting lessons can be very useful for future site investigations to be conducted in Japan. One of the most common lessons learned is that a repository program should allow for flexibility, in both schedule and approach. We examine field investigation technologies used to collect site characterization data in the field. An extensive list of existing field technologies is presented, with some discussion on usage and limitations. Many of the technologies on the list were in fact used during the characterization of Yucca Mountain and elsewhere by LBNL personnel. The study also includes emerging technologies and identifies the need to develop better estimation of important parameters for repository siting. Notable emerging technologies include 3-D seismic and satellite-based remote sensing and wireless micro electro mechanical systems (MEMS) sensors. They enable cost-effective and ubiquitous monitoring to be applied for site characterization. We list and classify the types of uncertainties involved in site characterization. Uncertainties can exist in all aspects of site characterization: data, interpretation, conceptualization, and modeling. We use the Swedish program to exemplify such uncertainties. We also devote a chapter on geochemical issues regarding the interaction between groundwater and natural and engineered barrier materials. A recommendation has been made to take advantage of the recent advancement in geochemical modeling capabilities in natural systems. Although it is not of immediate relevance at the preliminary investigation stage, it serves as a good reminder that geochemical investigation efforts should not be overlooked at any stage in the repository program. We construct a synthetic preliminary-investigation site based on an extensive data set available from a geoscientific project in Japan, which we use as a 'real' site to evaluate uncertainties resulting from hydrogeological modeling and examine strategies for characterizing a new site. We plan various preliminary-investigation configurations and conduct preliminary numerical investigations at the synthetic site. We construct a model of the 'real' site for each PI configuration, make predictions of particle travel times, and compare against the 'real' data obtained from the 'real' model. We conclude that drilling as many as nine boreholes does not necessarily improve the understanding of the site compared to drilling as few as three boreholes, unless there is an underlying structure that is larger than the spacing of the boreholes. The

  14. A Tale of Three Mysterious Spectral Features in Carbon-Rich Evolved Stars: The 21 Micrometer, 30 Micrometer, and "Unidentified Infrared" Emission Features

    E-Print Network [OSTI]

    Mishra, Ajay; Jiang, B W

    2015-01-01

    The mysterious "21 micrometer" emission feature seen almost exclusively in the short-lived protoplanetary nebula (PPN) phase of stellar evolution remains unidentified since its discovery two decades ago. This feature is always accompanied by the equally mysterious, unidentified "30 micrometer" feature and the so-called "unidentified infrared" (UIR) features at 3.3, 6.2, 7.7, 8.6, and 11.3 micrometer which are generally attributed to polycyclic aromatic hydrocarbon (PAH) molecules. The 30 micrometer feature is commonly observed in all stages of stellar evolution from the asymptotic giant branch (AGB) through PPN to the planetary nebula phase. We explore the interrelations among the mysterious 21 micrometer, 30 micrometer, and UIR features in the Galactic and Magellanic Cloud of the 21 micrometer sources. We derive the fluxes emitted in the observed UIR, 21 micrometer, and 30 micrometer features from published ISO or Spitzer/IRS spectra. We find that none of these spectral features correlate with each other. Th...

  15. Nickel-hydrogen battery with oxygen and electrolyte management features

    DOE Patents [OSTI]

    Sindorf, John F. (Pewaukee, WI)

    1991-10-22

    A nickel-hydrogen battery or cell having one or more pressure vessels containing hydrogen gas and a plurality of cell-modules therein. Each cell-module includes a configuration of cooperatively associated oxygen and electrolyte mangement and component alignment features. A cell-module having electrolyte includes a negative electrode, a positive electrode adapted to facilitate oxygen diffusion, a separator disposed between the positive and negative electrodes for separating them and holding electrolyte for ionic conductivity, an absorber engaging the surface of the positive electrode facing away from the separator for providing electrolyte to the positive electrode, and a pair of surface-channeled diffusion screens for enclosing the positive and negative electrodes, absorber, and separator and for maintaining proper alignment of these components. The screens, formed in the shape of a pocket by intermittently sealing the edges together along as many as three sides, permit hydrogen gas to diffuse therethrough to the negative electrodes, and prevent the edges of the separator from swelling. Electrolyte is contained in the cell-module, absorbhed by the electrodes, the separator and the absorber.

  16. BUILDING ROBUST APPEARANCE MODELS USING ON-LINE FEATURE SELECTION

    SciTech Connect (OSTI)

    PORTER, REID B. [Los Alamos National Laboratory; LOVELAND, ROHAN [Los Alamos National Laboratory; ROSTEN, ED [Los Alamos National Laboratory

    2007-01-29

    In many tracking applications, adapting the target appearance model over time can improve performance. This approach is most popular in high frame rate video applications where latent variables, related to the objects appearance (e.g., orientation and pose), vary slowly from one frame to the next. In these cases the appearance model and the tracking system are tightly integrated, and latent variables are often included as part of the tracking system's dynamic model. In this paper we describe our efforts to track cars in low frame rate data (1 frame/second) acquired from a highly unstable airborne platform. Due to the low frame rate, and poor image quality, the appearance of a particular vehicle varies greatly from one frame to the next. This leads us to a different problem: how can we build the best appearance model from all instances of a vehicle we have seen so far. The best appearance model should maximize the future performance of the tracking system, and maximize the chances of reacquiring the vehicle once it leaves the field of view. We propose an online feature selection approach to this problem and investigate the performance and computational trade-offs with a real-world dataset.

  17. Stylized features of single-nucleon momentum distributions

    E-Print Network [OSTI]

    Vanhalst, Maarten; Ryckebusch, Jan

    2014-01-01

    [Background:] Nuclear short-range correlations (SRC) typically manifest themselves in the tail parts of the single-nucleon momentum distributions. [Purpose:] To develop an approximate flexible method for computing the single-nucleon momentum distributions throughout the whole mass table, thereby including the majority of the effects of SRC. To use this method to study the mass and isospin dependence of SRC. [Method:] The low-order cluster approximation (LCA) adopted in this work, corrects mean-field models for correlations by shifting the complexity induced by the SRC from the wave functions to the operators. Due to the local character of the SRC, it is argued that the expansion of these operators can be truncated to a low order. [Results:] After inclusion of the central and tensor correlations, the LCA can generate the SRC-related features of the single-nucleon momentum distribution like the high-momentum tails. These are dominated by correlations operating on mean-field pairs with vanishing relative radial ...

  18. Basic features of the pion valence-quark distribution function

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Chang, Lei; Mezrag, Cédric; Moutarde, Hervé; Roberts, Craig D.; Rodríguez-Quintero, Jose; Tandy, Peter C.

    2014-10-07

    The impulse-approximation expression used hitherto to define the pion's valence-quark distribution function is flawed because it omits contributions from the gluons which bind quarks into the pion. A corrected leading-order expression produces the model-independent result that quarks dressed via the rainbow–ladder truncation, or any practical analogue, carry all the pion's light-front momentum at a characteristic hadronic scale. Corrections to the leading contribution may be divided into two classes, responsible for shifting dressed-quark momentum into glue and sea-quarks. Working with available empirical information, we use an algebraic model to express the principal impact of both classes of corrections. This enables amore »realistic comparison with experiment that allows us to highlight the basic features of the pion's measurable valence-quark distribution, q?(x); namely, at a characteristic hadronic scale, q?(x)~(1-x)2 for x?0.85; and the valence-quarks carry approximately two-thirds of the pion's light-front momentum.« less

  19. Features, Events, and Processes in SZ Flow and Transport

    SciTech Connect (OSTI)

    S. Kuzio

    2005-08-20

    This analysis report evaluates and documents the inclusion or exclusion of the saturated zone (SZ) features, events, and processes (FEPs) with respect to modeling used to support the total system performance assessment (TSPA) for license application (LA) of a nuclear waste repository at Yucca Mountain, Nevada. A screening decision, either Included or Excluded, is given for each FEP along with the technical basis for the decision. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.11(d), (e), (f) [DIRS 173273]. This scientific report focuses on FEP analysis of flow and transport issues relevant to the SZ (e.g., fracture flow in volcanic units, anisotropy, radionuclide transport on colloids, etc.) to be considered in the TSPA model for the LA. For included FEPs, this analysis summarizes the implementation of the FEP in TSPA-LA (i.e., how the FEP is included). For excluded FEPs, this analysis provides the technical basis for exclusion from TSPA-LA (i.e., why the FEP is excluded).

  20. Features, Events, and Processes in SZ Flow and Transport

    SciTech Connect (OSTI)

    K. Economy

    2004-11-16

    This analysis report evaluates and documents the inclusion or exclusion of the saturated zone (SZ) features, events, and processes (FEPs) with respect to modeling used to support the total system performance assessment (TSPA) for license application (LA) of a nuclear waste repository at Yucca Mountain, Nevada. A screening decision, either ''Included'' or ''Excluded'', is given for each FEP along with the technical basis for the decision. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.114 (d), (e), (f) (DIRS 156605). This scientific report focuses on FEP analysis of flow and transport issues relevant to the SZ (e.g., fracture flow in volcanic units, anisotropy, radionuclide transport on colloids, etc.) to be considered in the TSPA model for the LA. For included FEPs, this analysis summarizes the implementation of the FEP in TSPA-LA (i.e., how the FEP is included). For excluded FEPs, this analysis provides the technical basis for exclusion from TSPA-LA (i.e., why the FEP is excluded).