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


1

Microsoft Word - ffort-07.html  

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

8SK100655 Seating Capacity: 2 Adults Features: AMFM Stereo, Battery Thermal Management, Power Steering, Power Brakes, Front Disc Brakes & Anti-Lock Brakes DIMENSIONS Wheelbase:...

2

Microsoft Word - ffort-11.html  

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

Seating Capacity: 2 Adults Features: AC, Power Steering AMFM Stereo, Power Brakes, Battery Thermal Management, Anti-Lock Brakes & Heater DIMENSIONS Wheelbase: 117.4 inches...

3

Hybrid: Braking  

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

button highlighted Stopped Button subbanner graphic: gray bar BRAKING: PART 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in...

4

Gravity brake  

DOE Patents (OSTI)

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.

Lujan, Richard E. (Santa Fe, NM)

2001-01-01T23:59:59.000Z

5

Braking system  

DOE Patents (OSTI)

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.

Norgren, D.U.

1982-09-23T23:59:59.000Z

6

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

1 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in the battery. In regenerative braking, the electric motor is reversed so that, instead of using electricity to turn the wheels, the rotating wheels turn the motor and create electricity. Using energy from the wheels to turn the motor slows the vehicle down. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the electric motor to the battery. Main stage: See through car with battery, engine, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the electric motor to the battery.

7

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

2 2 If additional stopping power is needed, conventional friction brakes (e.g., disc brakes) are also applied automatically. Go back… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

8

Hybrid: Braking  

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

Button Stopped button highlighted subbanner graphic: gray bar Button Stopped button highlighted subbanner graphic: gray bar STOPPED When the vehicle is stopped, such as at a red light, the gasoline engine and electric motor shut off automatically so that energy is not wasted in idling. The battery continues to power auxillary systems, such as the air conditioning and dashboard displays. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

9

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Button Stopped button highlighted subbanner graphic: gray bar Button Stopped button highlighted subbanner graphic: gray bar STOPPED When the vehicle is stopped, such as at a red light, the gasoline engine and electric motor shut off automatically so that energy is not wasted in idling. The battery continues to power auxillary systems, such as the air conditioning and dashboard displays. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

10

Full Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Braking button highlighted Stopped button Braking button highlighted Stopped button BRAKING PART 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in the battery. In regenerative braking, the electric motor is reversed so that, instead of using electricity to turn the wheels, the rotating wheels turn the motor and create electricity. Using energy from the wheels to turn the motor slows the vehicle down. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the power split device to the electric motor to the battery. Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the power split device to the electric motor to the battery.

11

Vehicle brake testing system  

SciTech Connect

This invention relates to a force measuring system capable of measuring forces associated with vehicle braking and of evaluating braking performance. The disclosure concerns an invention which comprises a first row of linearly aligned plates, a force bearing surface extending beneath and beside the plates, vertically oriented links and horizontally oriented links connecting each plate to a force bearing surface, a force measuring device in each link, a transducer coupled to each force measuring device, and a computing device coupled to receive an output signal from the transducer indicative of measured force in each force measuring device. The present invention may be used for testing vehicle brake systems.

Stevens, Samuel S [Harriman, TN; Hodgson, Jeffrey W [Lenoir City, TN

2002-11-19T23:59:59.000Z

12

Svendborg Brakes | Open Energy Information  

Open Energy Info (EERE)

energy Product Denmark-based manufacturer of braking systems for the wind industry, as well as for the oil sector. References Svendborg Brakes1 LinkedIn Connections CrunchBase...

13

Combined hydraulic and regenerative braking system  

DOE Patents (OSTI)

A combined hydraulic and regenerative braking system and method for an electric vehicle is disclosed. The braking system is 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.

Venkataperumal, R.R.; Mericle, G.E.

1979-08-09T23:59:59.000Z

14

Combined hydraulic and regenerative braking system  

DOE Patents (OSTI)

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.

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

1981-06-02T23:59:59.000Z

15

Regenerative braking device  

DOE Patents (OSTI)

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.

Hoppie, Lyle O. (Birmingham, MI)

1982-01-12T23:59:59.000Z

16

Variable ratio regenerative braking device  

DOE Patents (OSTI)

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.

Hoppie, Lyle O. (Birmingham, MI)

1981-12-15T23:59:59.000Z

17

Commercial Motor Vehicle Brake Assessment Tools  

E-Print Network (OSTI)

Commercial Motor Vehicle Brake Assessment Tools Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor #12;Overview · Commercial Motor Vehicle (CMV) Air Brake System · North American Standard Level-1

18

Brake blending strategy for a hybrid vehicle  

DOE Patents (OSTI)

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.

Boberg, Evan S. (Hazel Park, MI)

2000-12-05T23:59:59.000Z

19

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 Center for Transportation Analysis (CTA) Research Areas Aviation Safety Air Traffic Management Analysis Environmental Policy Analysis Highway Safety Intelligent Transportation Systems Logistics Management Supply

20

Improved braking torque generation capacity of an eddy current brake with time varying magnetic fields: A numerical study  

Science Conference Proceedings (OSTI)

Eddy current brakes (ECB) are electrically controlled and non-contact actuators used as assistive brakes in vehicles. ECBs exhibit insufficient generated braking torque at low speeds. In order to overcome this, the use of AC magnetic fields with fixed ... Keywords: Automotive applications, Brake-by-wire, Eddy current brakes, Finite element analysis, Time-varying magnetic field

Kerem Karakoc; Edward J. Park; Afzal Suleman

2012-10-01T23:59:59.000Z

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


21

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

22

Multidisciplinary design optimization of an automotive magnetorheological brake design  

Science Conference Proceedings (OSTI)

This paper presents the development of a new electromechanical brake system using magnetorheological (MR) fluid. The proposed brake system consists of rotating disks immersed in a MR fluid and enclosed in an electromagnet, where the yield stress of the ... Keywords: Automotive brake, Computational fluid dynamics, Electric brake actuator, Finite element analysis, Magnetorheological fluid, Multidisciplinary design optimization

Edward J. Park; Luis Falco da Luz; Afzal Suleman

2008-02-01T23:59:59.000Z

23

The Application of Fuzzy Logic in Regenerative Braking of EV  

Science Conference Proceedings (OSTI)

Regenerative braking can improve energy usage efficiency and prolong the driving distance of electric vehicle per charge, effectively. In the paper, we design a sugenos fuzzy logic controller which has four inputs including drivers braking ... Keywords: regenerative braking, fuzzy logic control, braking force distribution, ADVISOR

Zijian Zhang; Guoqing Xu; Weimin Li; Liang Zheng

2010-08-01T23:59:59.000Z

24

Method and apparatus for wind turbine braking  

DOE Patents (OSTI)

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.

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)

2009-02-10T23:59:59.000Z

25

Adaptive controller for regenerative and friction braking system  

DOE Patents (OSTI)

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.

Davis, Roy I. (Ypsilanti, MI)

1990-01-01T23:59:59.000Z

26

Adaptive controller for regenerative and friction braking system  

DOE Patents (OSTI)

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.

Davis, R.I.

1990-10-16T23:59:59.000Z

27

Model and Simulation of a Super-capacitor Braking Energy Recovery System for Urban Railway Vehicles  

Science Conference Proceedings (OSTI)

In this paper, a braking energy recovery system based on super-capacitor was presented. The method use super-capacitor and the conventional braking resistance constitute a new braking unit to realize the regenerative energy recovery, when braking, braking ... Keywords: Urban railway transportation, regeneration braking, super-capacitor, energy recovery, electric traction

Chen Xiao-li; Yang Jian; Fang Yu

2010-08-01T23:59:59.000Z

28

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

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.

Cikanek, Susan R. (Wixom, MI)

1995-01-01T23:59:59.000Z

29

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

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.

Cikanek, S.R.

1995-09-12T23:59:59.000Z

30

Collapse and Fragmentation of Molecular Cloud Cores. X. Magnetic Braking of Prolate and Oblate Cores  

E-Print Network (OSTI)

The collapse and fragmentation of initially prolate and oblate, magnetic molecular clouds is calculated in three dimensions with a gravitational, radiative hydrodynamics code. The code includes magnetic field effects in an approximate manner: magnetic pressure, tension, braking, and ambipolar diffusion are all modelled. The parameters varied for both the initially prolate and oblate clouds are the initial degree of central concentration of the radial density profile, the initial angular velocity, and the efficiency of magnetic braking (represented by a factor $f_{mb} = 10^{-4}$ or $10^{-3}$). The oblate cores all collapse to form rings that might be susceptible to fragmentation into multiple systems. The outcome of the collapse of the prolate cores depends strongly on the initial density profile. Prolate cores with central densities 20 times higher than their boundary densities collapse and fragment into binary or quadruple systems, whereas cores with central densities 100 times higher collapse to form single...

Boss, Alan P

2009-01-01T23:59:59.000Z

31

The Research of Traction Motor Energy-Saving Regenerative Braking Control Technology  

Science Conference Proceedings (OSTI)

In all the motor braking control systems, regenerative braking is the only way of energy-saving braking control mode. It can convert dynamic energy which generate during braking period into electric energy, then return to the grid. In this paper, through ... Keywords: regenerative braking, traction motor, direct torque, stator flux, slip frequency

Yuhua Wang; Jianlin Miao; Yuanfang Wei

2010-05-01T23:59:59.000Z

32

Niobium Alloying in Grey Cast Iron for Vehicle Brake Discs  

Science Conference Proceedings (OSTI)

Presentation Title, Niobium Alloying in Grey Cast Iron for Vehicle Brake Discs. Author(s) ... Microtexture Analysis of a Hot Rolled Silicon Electric Steel Niobium

33

Braking system for use with an arbor of a microscope  

DOE Patents (OSTI)

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.

Norgren, Duane U. (Orinda, CA)

1984-01-01T23:59:59.000Z

34

Study on Regenerative Brake Method of Hybrid Electric Drive System of Armored Vehicle  

Science Conference Proceedings (OSTI)

Aiming at characteristics of regenerative brake of hybrid electric drive system of tracked armored vehicle, mechanism of regenerative brake by pulse width modulation is in-depth analyzed, motor speed, brake current, feedback current, feedback energy ... Keywords: hybrid electric drive, motor, regenerative brake

Li Hua; Zhong Meng-chun; Zhang Jian; Xu Da; Lin Hai

2011-10-01T23:59:59.000Z

35

VEHICLE SPECIFICATIONS Vehicle Features Base Vehicle: 2010 Honda  

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

Honda Honda Civic Hybrid VIN: JHMFA3F24AS005577 Seatbelt Positions: 5 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Disc Brakes Front Wheel Drive Regenerative Braking Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD State of Charge Meter 1 Weights Design Curb Weight: 2877 lb Delivered Curb Weight: 2982 lb Distribution F/R (%): 57/43 GVWR: 3792 lb GAWR F/R: 1973/1841 lb Payload 2 : 810 lb Performance Goal: 400 lb Dimensions Wheelbase: 106.3 in Track F/R: 59.1/60.2 in Length: 177.3 in Width: 69.0 in Height: 56.3 in Ground Clearance: 6.0 in Performance Goal: 5.0 in Tires Manufacturer: Bridgestone

36

Computational model design and performance estimation in registration brake control  

Science Conference Proceedings (OSTI)

Electric motorcycles are applicable to both toys and real motorcycles, and also is a reference for constructing larger electrical vehicles. A design computational model of regenerative braking control of electric motorcycles and an experimental identification ...

P. S. Pa; S. C. Chang

2009-06-01T23:59:59.000Z

37

Regenerative braking on bicycles to power LED safety flashers  

E-Print Network (OSTI)

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, ...

Collier, Ian M

2005-01-01T23:59:59.000Z

38

Investigation of aerodynamic braking devices for wind turbine applications  

DOE Green Energy (OSTI)

This report documents the selection and preliminary design of a new aerodynamic braking system for use on the stall-regulated AWT-26/27 wind turbines. The goal was to identify and design a configuration that offered improvements over the existing tip brake used by Advanced Wind Turbines, Inc. (AWT). Although the design objectives and approach of this report are specific to aerodynamic braking of AWT-26/27 turbines, many of the issues addressed in this work are applicable to a wider class of turbines. The performance trends and design choices presented in this report should be of general use to wind turbine designers who are considering alternative aerodynamic braking methods. A literature search was combined with preliminary work on device sizing, loads and mechanical design. Candidate configurations were assessed on their potential for benefits in the areas of cost, weight, aerodynamic noise, reliability and performance under icing conditions. As a result, two configurations were identified for further study: the {open_quotes}spoiler-flap{close_quotes} and the {open_quotes}flip-tip.{close_quotes} Wind tunnel experiments were conducted at Wichita State University to evaluate the performance of the candidate aerodynamic brakes on an airfoil section representative of the AWT-26/27 blades. The wind tunnel data were used to predict the braking effectiveness and deployment characteristics of the candidate devices for a wide range of design parameters. The evaluation was iterative, with mechanical design and structural analysis being conducted in parallel with the braking performance studies. The preliminary estimate of the spoiler-flap system cost was $150 less than the production AWT-26/27 tip vanes. This represents a reduction of approximately 5 % in the cost of the aerodynamic braking system. In view of the preliminary nature of the design, it would be prudent to plan for contingencies in both cost and weight.

Griffin, D.A. [R. Lynette & Associates, Seattle, WA (United States)

1997-04-01T23:59:59.000Z

39

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

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.

Cikanek, S.R.

1994-10-25T23:59:59.000Z

40

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

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.

Cikanek, Susan R. (Wixom, MI)

1994-01-01T23:59:59.000Z

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


41

Regenerative braking device with rotationally mounted energy storage means  

DOE Patents (OSTI)

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.

Hoppie, Lyle O. (Birmingham, MI)

1982-03-16T23:59:59.000Z

42

VEHICLE SPECIFICATIONS Vehicle Features Base Vehicle: 2010 Smart  

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

Smart Smart Fortwo MHD VIN: WME4513341K406476 Seatbelt Positions: 2 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Drum Brakes Rear Wheel Drive Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD player Weights Design Curb Weight:1,818 lb Delivered Curb Weight: 1.742 lb Distribution F/R (%):44/56 GVWR: 2,244 lb GAWR F/R: 968/1,452 lb Payload 1 : 426 lb Performance Goal: 400 lb Dimensions Wheelbase: 73.5 in Track F/R: 50.5/54.5 in Length: 106.1 in Width: 61.4 in Height: 60.7 in Ground Clearance: 6.25 in Performance Goal: 5.0 in Tires Manufacturer: Continental Model: ContiproContact Size: Front -P155/60/R15

43

VEHICLE SPECIFICATIONS Vehicle Features  

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

Mazda 3 Mazda 3 VIN: JMZBLA4G601111865 Seatbelt Positions: 5 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Disc Brakes Front Wheel Drive Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD Weights Design Curb Weight: 2,954 lb Delivered Curb Weight: 2,850 lb Distribution F/R (%): 63/37 GVWR: 4,050 lb GAWR F/R: 2,057/1,896 lb Payload 1 : 1,096 lb Performance Goal: 400 lb Dimensions Wheelbase: 103.9 in Track F/R: 60.4/59.8 in Length: 175.6 in Width: 69.1 in Height: 57.9 in Ground Clearance: 6.1 in Performance Goal: 5.0 in Tires Manufacturer: Yokohama Model: YK520 Size: P205/55R17 Pressure F/R: 35/33 psi

44

Oxygen-Diffused Titanium as a Candidate Brake Rotor Material  

SciTech Connect

Titanium alloys are one of several candidate materials for the next generation of truck disk brake rotors. Despite their advantages of lightweight relative to cast iron and good strength and corrosion resistance, titanium alloys are unlikely to be satisfactory brake rotor materials unless their friction and wear behavior can be significantly improved. In this study, a surface engineering process oxygen diffusion was applied to titanium rotors and has shown very encouraging results. The oxygen diffused Ti-6Al-4V (OD-Ti) was tested on a sub-scale brake tester against a flat block of commercial brake lining material and benchmarked against several other Ti-based materials, including untreated Ti-6Al-4V, ceramic particle-reinforced Ti composites (MMCs), and a thermal-spray-coated Ti alloy. With respect to friction, the OD-Ti outperformed all other candidate materials under the imposed test conditions with the friction coefficient remaining within a desirable range of 0.35-0.50, even under the harshest conditions when the disk surface temperature reached nearly 600 ?C. In addition, the OD-Ti showed significantly improved wear-resistance over the non-treated one and was even better than the Ti-based composite materials.

Qu, Jun [ORNL; Blau, Peter Julian [ORNL; Jolly, Brian C [ORNL

2009-01-01T23:59:59.000Z

45

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

Science Conference Proceedings (OSTI)

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.

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

2013-10-01T23:59:59.000Z

46

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

DOE Green Energy (OSTI)

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.

Peter J. Blau

2000-04-26T23:59:59.000Z

47

Brake rotor design and comparison using finite element analysis : an investigation in topology optimization.  

E-Print Network (OSTI)

??Disc brake technology used for mountain bikes, and mountain bike technology in general, has improved significantly as the sport of mountain biking has evolved. Disc (more)

Domond, Kenneth

2010-01-01T23:59:59.000Z

48

Numerical Simulation of Brake Discs of CRH3 High-Speed Trains ...  

Science Conference Proceedings (OSTI)

... the research object?the course of emergency brake was simulated by ANSYS. .... Energy X-Ray Diffraction Microscopy Studies of Bulk Polycrystal Responses.

49

Tachyon cosmology, supernovae data, and the big brake singularity  

SciTech Connect

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 [Phys. Rev. D 69, 123512 (2004)]. 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.

Keresztes, Z.; Gergely, L. A.; Gorini, V.; Moschella, U.; Kamenshchik, A. Yu. [Department of Theoretical Physics, University of Szeged, Tisza Lajos krt 84-86, Szeged 6720 (Hungary); Department of Experimental Physics, University of Szeged, Dom Ter 9, Szeged 6720 (Hungary); Department of Theoretical Physics, University of Szeged, Tisza Lajos krt 84-86, Szeged 6720 (Hungary); Department of Experimental Physics, University of Szeged, Dom Ter 9, Szeged 6720 (Hungary); Department of Applied Science, London South Bank University, 103 Borough Road, London SE1 OAA (United Kingdom); Dipartimento di Scienze Fisiche e Mathematiche, Universita dell'Insubria, Via Valleggio 11, 22100 Como (Italy); INFN, sezione di Milano, Via Celoria 16, 20133 Milano (Italy); Dipartimento di Fisica and INFN, via Irnerio 46, 40126 Bologna (Italy); L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Kosygin street 2, 119334 Moscow (Russian Federation)

2009-04-15T23:59:59.000Z

50

Dual-channel Haptic Synthesis of Viscoelastic Tissue Properties using Programmable Eddy Current Brakes  

Science Conference Proceedings (OSTI)

We describe a novel method for haptic synthesis of viscoelastic responses which employs a dual-channel haptic interface. It has motors that generate torque independently of velocity and brakes that generate viscous torque independently of position. ... Keywords: eddy current brakes, haptic simulation, viscoelastic simulation

Andrew H. C. Gosline; Vincent Hayward

2009-10-01T23:59:59.000Z

51

Simulation of PSO Fuzzy Control Stratety for Regenerative Braking of HEV  

Science Conference Proceedings (OSTI)

Based on particle swarm optimization algorithm, a new fuzzy controller was constructed and a fuzzy control strategy of regenerative braking for HEV was proposed. A model of a parallel hybrid electric vehicle was built. The performance of the default ... Keywords: hybrid electric vehicle, fuzzy control, regenerative braking, particle swarm optimization

Wang Chun; Tang Lan

2012-04-01T23:59:59.000Z

52

Operation Pattern Recognition and Control for Super Capacitor Braking Energy Regeneration System of Micro EV  

Science Conference Proceedings (OSTI)

Super capacitor has some advantages of high charge-discharge rate, long life, simple structure and reliable performance, and it is especially suitable as braking energy renewable energy storage device for electric vehicle and hybrid electric vehicle. ... Keywords: Super capacitor, braking energy regeneration, micro EV, pattern recognition and control

Jinyu Qu; Liyan Liang; Zhongyu Yang

2009-12-01T23:59:59.000Z

53

Microsoft PowerPoint - Real-Time Dynamic Brake Assessment poster.ppt [Compatibility Mode]  

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

Dynamic Brake Assessment Dynamic Brake Assessment Purpose Conduct a proof-of-concept test to examine the feasibility of developing an on-board system to assess a vehicle's ability to stop based on typical low-pressure in-service braking events. Partnerships H.T. Hackney Company MGM Brakes Overview Funded through the Federal Motor Carrier Safety Administration's Vehicle and Roadside Operations Division Concept stemming from on the Department of Energy's Medium Truck Duty Cycle research as well as previous research conducted for the National Highway Transportation Safety Administration. Signals to be collected Real-time brake application pressure Vehicle speed and acceleration GPS location and grade information Vehicle weight (current load) Engine parameters such as RPM and torque To be conducted October 2010 -

54

Wind turbine trailing-edge aerodynamic brake design  

DOE Green Energy (OSTI)

This report describes the design of a centrifugally actuated aerodynamic-overspeed device for a horizontal-axis wind turbine. The device will meet the following criteria; (1) It will be effective for airfoil angles of attack 0{degrees} to 45{degrees}. (2) It will be stowed inside the blade profile prior to deployment. (3) It will be capable of offsetting the positive torque produced by the overall blade. (4) Hinge moments will be minimized to lower actuator loads and cost. (5) It will be evaluated as a potential power modulating active rotor-control system. A literature review of aerodynamic braking devices was conducted. Information from the literature review was used to conceptualize the most effective devices for subsequent testing and design. Wind-tunnel test data for several braking devices are presented in this report. Using the data for the most promising configuration, a preliminary design was developed for a MICON 65/13 wind turbine with Phoenix 7.9-m rotor blades.

Quandt, G.

1996-01-01T23:59:59.000Z

55

OLAP dimension constraints  

Science Conference Proceedings (OSTI)

In multidimensional data models intended for online analytic processing (OLAP), data are viewed as points in a multidimensional space. Each dimension has structure, described by a directed graph of categories, a set of members for each category, and ...

Carlos A. Hurtado; Alberto O. Mendelzon

2002-06-01T23:59:59.000Z

56

Gravity, Dimension, Equilibrium, & Thermodynamics  

E-Print Network (OSTI)

Is it actually possible to interpret gravitation as space's property in a pure classical way. Then, we note that extended self-gravitating system equilibrium depends directly on the number of dimension of the space in which it evolves. Given those precisions, we review the principal thermodynamical knowledge in the context of classical gravity with arbitrary dimension of space. Stability analyses for bounded 3D systems, namely the Antonov instability paradigm, are then rapproched to some amazing properties of globular clusters and galaxies.

Jerome Perez

2006-03-30T23:59:59.000Z

57

Nonlinear Control Synthesis for a Self-energizing Electro-Hydraulic Brake  

E-Print Network (OSTI)

Nonlinear control algorithm for a self-energizing electro-hydraulic brake is analytically designed. The desired closed-loop system behavior is reached via a synthesized nonlinear controller.

Starykh, Alexey

2010-01-01T23:59:59.000Z

58

2009 BMW MINI EVAmerica fact sheet.pdf  

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

3230 lb 3230 lb Delivered Curb Weight: 3306 lb Distribution F/R: 51/49 % GVWR: 3660 lb Payload 2 : 354 lb Performance Goal: 400 lb DIMENSIONS Wheelbase: 97.1 inches Track F/R: 57.4/57.8 inches Length: 145.6 inches Width: 66.3 inches Height: 55.4 inches Ground Clearance: 6.0 inches Performance Goal: 5.0 inches CHARGER Level 1: Location: On-board Type: Conductive Input Voltages: 120VAC Level 2: Location: Off-board Type: Conductive Input Voltages: 240 VAC © 2009 Electric Transportation Applications All Rights Reserved BASE VEHICLE: 2009 BMW MINI E Seatbelt Positions: Two Standard Features: Front Wheel Drive Front Disc and Rear Disc Brakes Regenerative Braking With Coast Down Three-Point Safety Belts Speedometer Odometer State-Of-Charge Meter BATTERY Type: Lithium Ion Number of Modules: 48

59

Microsoft Word - solcar95.html  

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

FORCE FORCE VEHICLE SPECIFICATIONS CONVERTED VEHICLE Base Vehicle: 1995 Geo Metro VIN:2C1MR529XS6783464 Seatbelt Positions: Three Standard Features: Power Brakes Front Disk Brakes Front Wheel Drive Dual Air Bags AM/FM Stereo Radio w/Cassette Electric Heater Options as Tested: None BATTERY Manufacturer: GM Ovonic Type: 13.2EV85 Nickel Metal Hydride Number of Modules: 14 Weight of Module: 18 kg Weight of Pack(s): 254 kg Pack Locations: Undertrunk/Underhood Nominal Module Voltage: 13.2 V Nominal System Voltage: 185 V Nominal Capacity (1C): 85 Ah WEIGHTS Design Curb Weight: 2246 lbs Delivered Curb Weight: 2304 lbs Distribution F/R: 50/50 % GVWR: 2755 lbs GAWR F/R: 1432/1366 lbs Payload: 451 lbs Performance Goal: 664 lbs DIMENSIONS Wheelbase: 93.5 inches

60

The Particle Adventure | Unsolved Mysteries | Extra dimensions  

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

Unsolved Mysteries - Extra dimensions Extra dimensions String theory and other new proposals require more than three space dimensions. These extra dimensions could be very small,...

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


61

Control of a dynamic brake to reduce turbine-generator shaft transient torques  

SciTech Connect

A resistive, thyristor-controlled brake is used to damp transient torques in large thermo-electric generators supplying series-compensated transmission lines. Emphasis is placed on developing a suitable control algorithm and testing the algorithm through a wide variety of different operating configurations. Discrete-level Generalized Predictive Control is examined as one possible approach to optimal control of the brake. Some problems with implementation of GPC on the system are discussed. Prony analysis is used to identify system transfer functions which are then related to control design considerations and robustness properties.

Donnelly, M.K.; Smith, J.R.; Johnson, R.M. (Montana State Univ., Bozeman, MT (United States)); Hauer, J.F. (Bonneville Power Administration, Kalispell, MT (United States)); Brush, R.W. (Montana Power Co., Butte, MT (United States)); Adapa, R. (Electric Power Research Inst., Palo Alto, CA (United States))

1993-02-01T23:59:59.000Z

62

Beta function and anomalous dimensions  

Science Conference Proceedings (OSTI)

We demonstrate that it is possible to determine the coefficients of an all-orders beta-function linear in the anomalous dimensions using as data the 2-loop coefficients together with the first one of the anomalous dimensions which are universal. The beta function allows us to determine the anomalous dimension of the fermion masses at the infrared fixed point, and the resulting values compare well with the lattice determinations.

Pica, Claudio; Sannino, Francesco [CP3-Origins, University of Southern Denmark, Campusvej 55, DK-5230 Odense M (Denmark)

2011-06-01T23:59:59.000Z

63

Hidden Photons in Extra Dimensions  

E-Print Network (OSTI)

Additional U(1) gauge symmetries and corresponding vector bosons, called hidden photons, interacting with the regular photon via kinetic mixing are well motivated in extensions of the Standard Model. Such extensions often exhibit extra spatial dimensions. In this note we investigate the effects of hidden photons living in extra dimensions. In four dimensions such a hidden photon is only detectable if it has a mass or if there exists additional matter charged under it. We note that in extra dimensions suitable masses for hidden photons are automatically present in form of the Kaluza-Klein tower.

Chris J. Wallace; Joerg Jaeckel; Sabyasachi Roy

2013-11-25T23:59:59.000Z

64

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

E-Print Network (OSTI)

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 driving game. Superimposed on the game screen was the image of a car which appeared to the driver to be ahead of him/her. The image enlarged in size, appearing to be a car applying its brakes. The participant was instructed to react as he would in a real driving situation by applying his/her brakes. Closing velocities of 10 miles per hour and 30 miles per hour were used. Braking times and forces were measured for four different warning sounds: 1) no warning; 2) a pulsed warning sound that increased in repetition rate; 3) a sound that increased in frequency; and, 4) a sound that increased in intensity. Results suggested that an auditory warning signal would decrease reaction time and increase maximum braking force applied. The sound that increased in frequency and the sound that increased in intensity provided the greatest savings in reaction time, approximately one quarter second, when compared to the no warning condition. The pulsed warning sound provided the greatest increase in braking force. Participants preferred the pulsed sound over the other warning sounds. Further research must be done to determine if the warning sounds decrease the reaction time enough to cause a significant reduction in accidents.

Hopkins, Jennifer Susan

1995-01-01T23:59:59.000Z

65

Variations in gear fatigue life for different wind turbine braking strategies  

SciTech Connect

A large number of gearbox failures have occurred in the wind industry in a relatively short period, many because service loads were underestimated. High-torque transients that occur during starting and stopping are difficult to predict and may be overlooked in specifying gearbox design. Although these events comprise a small portion of total load cycles, they can be the most damaging. The severity of these loads varies dramatically with the specific configuration of the wind turbine. The large number of failures in Danish-designed Micon 65 wind turbines prompted this investigation. The high-speed and low-speed shaft torques were measured on a two-stage helical gearbox of a single Micon 65 turbine. Transient events and normal running loads were combined statistically to obtain a typical annual load spectrum. The pitting and bending fatigue lives of the gear teeth were calculated by using Miner's rule for four different high-speed shaft brake configurations. Each breaking scenario was run for both a high- and a low-turbulence normal operating load spectrum. The analysis showed increases in gear life by up to a factor of 25 when the standard high-speed shaft brake is replaced with a dynamic brake or modified with a damper. 9 refs., 9 figs., 3 tabs.

McNiff, B.P. (Second Wind, Inc., Somerville, MA (USA)); Musial, W.D. (Solar Energy Research Inst., Golden, CO (USA)); Errichello, R. (GEARTECH, Albany, CA (USA))

1991-06-01T23:59:59.000Z

66

How Many CVs are Crossing the Period Gap? A Test for the Disruption of Magnetic Braking  

E-Print Network (OSTI)

We apply population synthesis techniques to calculate the present day number of two types of white dwarf-main sequence star (WDMS) binaries within the cataclysmic variable period gap. The first are post-common envelope binaries with secondary stars that have masses between 0.17 and 0.36 Msun (gPCEBs), such that they will commence mass transfer within the period gap. The second type are systems that were CVs at some point in their past, but detached once they evolved down in orbital period to ~3 h as a consequence of disrupted magnetic braking, and are crossing the period gap via gravitational radiation (dCVs). Full population synthesis calculations are performed where we assume either constant, global values of the common envelope ejection efficiency, or consider the ejection efficiency as a function of secondary mass. Several forms of magnetic braking are also considered. We predict an excess of dCVs over gPCEBs within the period gap of ~4 to ~13 assuming an ejection efficiency between 0.1 and 0.6, and a flat initial mass ratio distribution. This excess is revealed as a prominent peak at the location of the period gap in the orbital period distribution of the combined gPCEB and dCV population. We suggest that if such a feature is observed in the orbital period distribution of an observed sample of short orbital period WDMS binaries, this would strongly corroborate the disruption of magnetic braking.

P. J. Davis; U. Kolb; B. Willems; B. T. Gnsicke

2008-05-30T23:59:59.000Z

67

Variations in gear fatigue life for different wind turbine braking strategies  

DOE Green Energy (OSTI)

A large number of gearbox failures have occurred in the wind industry in a relatively short period, many because service loads were underestimated. High-torque transients that occur during starting and stopping are difficult to predict and may be overlooked in specifying gearbox design. Although these events comprise a small portion of total load cycles, they can be the most damaging. The severity of these loads varies dramatically with the specific configuration of the wind turbine. The large number of failures in Danish-designed Micon 65 wind turbines prompted this investigation. The high-speed and low-speed shaft torques were measured on a two-stage helical gearbox of a single Micon 65 turbine. Transient events and normal running loads were combined statistically to obtain a typical annual load spectrum. The pitting and bending fatigue lives of the gear teeth were calculated by using Miner's rule for four different high-speed shaft brake configurations. Each breaking scenario was run for both a high- and a low-turbulence normal operating load spectrum. The analysis showed increases in gear life by up to a factor of 25 when the standard high-speed shaft brake is replaced with a dynamic brake or modified with a damper. 9 refs., 9 figs., 3 tabs.

McNiff, B.P. (Second Wind, Inc., Somerville, MA (USA)); Musial, W.D. (Solar Energy Research Inst., Golden, CO (USA)); Errichello, R. (GEARTECH, Albany, CA (USA))

1991-06-01T23:59:59.000Z

68

String universality in six dimensions  

E-Print Network (OSTI)

In six dimensions, cancellation of gauge, gravitational, and mixed anomalies strongly constrains the set of quantum field theories, which can be coupled consistently to gravity. We show that for some classes of six-dimensional ...

Kumar, Vijay

69

Domain Bubbles of Extra Dimensions  

E-Print Network (OSTI)

``Dimension bubbles'' of the type previously studied by Blau and Guendelman [S.K. Blau and E.I. Guendelman, Phys. Rev. D40, 1909 (1989)], which effectively enclose a region of 5d spacetime and are surrounded by a region of 4d spacetime, can arise in a 5d theory with a compact extra dimension that is dimensionally reduced to give an effective 4d theory. These bubbles with thin domain walls can be stabilized against total collapse in a rather natural way by a scalar field which, as in the case with ``ordinary'' nontopological solitons, traps light scalar particles inside the bubble.

J. R. Morris

2002-11-19T23:59:59.000Z

70

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

Science Conference Proceedings (OSTI)

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.

Rau, Scott James

2013-01-29T23:59:59.000Z

71

TIRES Tire Mfg: Triangle Tire Model: Radial...  

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

505 lb Delivered Curb Weight: 2498 lb Distribution FR: 5149 % GVWR: 2998 lb GAWR FR: 17001550 lb Payload 2 : 500 lb Performance Goal: 400 lb DIMENSIONS Wheelbase: 97.0 inches...

72

TIRES Tire Mfg: Triangle Tire Model: Radial...  

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

472 lb Delivered Curb Weight: 2472 lb Distribution FR: 5149 % GVWR: 2998 lb GAWR FR: 17971562 lb Payload 2 : 526 lb Performance Goal: 400 lb DIMENSIONS Wheelbase: 98.0 inches...

73

26 ford 4-p car data sheet.indd  

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

92 lb Delivered Curb Weight: 1431 lb Distribution FR: 4654% GVWR: 2300 lb GAWR FR: 8401530 lb Payload: 899 lb 3 Performance Goal: 400 lb DIMENSIONS Wheelbase: 77.9 inches Track...

74

29 nash car data sheet.indd  

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

54 lb Delivered Curb Weight: 1961 lb Distribution FR: 5050 % GVWR: 2593 lb GAWR FR: 11041489 lb Payload: 640 lb 2 Performance Goal: 400 lb DIMENSIONS Wheelbase: 86.6 Track FR:...

75

25 ford 2-p car sheet data.indd  

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

48 lb Delivered Curb Weight: 1355 lb Distribution FR: 4456% GVWR: 1900 lb GAWR FR: 7501230 lb Payload: 551 lb 3 Performance Goal: 400 lb DIMENSIONS Wheelbase: 67.9 inches Track...

76

Critical Gravity in Four Dimensions  

SciTech Connect

We study four-dimensional gravity theories that are rendered renormalizable by the inclusion of curvature-squared terms to the usual Einstein action with a cosmological constant. By choosing the parameters appropriately, the massive scalar mode can be eliminated and the massive spin-2 mode can become massless. This ''critical'' theory may be viewed as a four-dimensional analogue of chiral topologically massive gravity, or of critical 'new massive gravity' with a cosmological constant, in three dimensions. We find that the on-shell energy for the remaining massless gravitons vanishes. There are also logarithmic spin-2 modes, which have positive energy. The mass and entropy of standard Schwarzschild-type black holes vanish. The critical theory might provide a consistent toy model for quantum gravity in four dimensions.

Lue, H. [China Economics and Management Academy, Central University of Finance and Economics, Beijing 100081 (China); Institute for Advanced Study, Shenzhen University, Nanhai Avenue 3688, Shenzhen 518060 (China); Pope, C. N. [George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, College Station, Texas 77843 (United States); DAMTP, Centre for Mathematical Sciences, Cambridge University, Wilberforce Road, Cambridge CB3 OWA (United Kingdom)

2011-05-06T23:59:59.000Z

77

Dark Energy From Fifth Dimension  

E-Print Network (OSTI)

Observational evidence for the existence of dark energy is strong. Here we suggest a model which is based on a modified gravitational theory in 5D and interpret the 5th dimension as a manifestation of dark energy in the 4D observable universe. We also obtain an equation of state parameter which varies with time. Finally, we match our model with observations by choosing the free parameters of the model.

H. Alavirad; N. Riazi

2008-01-21T23:59:59.000Z

78

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

E-Print Network (OSTI)

based on eddy current brakes because they are inexpensive, friction- e-mail: andrewg@cim.mcgill.ca e-mail: champ@cim.mcgill.ca e-mail: hayward@cim.mcgill.ca free, capable of fast turn-on time, and linear

Hayward, Vincent

79

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

E-Print Network (OSTI)

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 ...

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

2010-01-01T23:59:59.000Z

80

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

E-Print Network (OSTI)

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 internal combustion engine to consider for numerous applications, but associated actions to mitigate certain exhaust emissions have generally deteriorated engine efficiency. Conventionally, diesel engine emission control has centered on in-cylinder techniques. Although these continue to hold promise, the industry trend is presently favoring the use of after-treatment devices which create new opportunities to improve the diesel engine's brake fuel conversion efficiency. This study focuses on injection timing effects on the combustion processes, engine efficiency, and the engine system's responses. The engine in the study is a medium duty diesel engine (capable of meeting US EPA Tier III off road emission standards) equipped with common rail direct fuel injection, variable geometry turbo charging, and interfaced with a custom built engine controller. The study found that injection timing greatly affected BFCE by changing the combustion phasing. BFCE would increase up to a maximum then begin to decrease as phasing became less favorable. Combustion phasing would change from being mostly mixing controlled combustion to premixed combustion as injection timing would advance allowing more time for fuel to mix during the ignition delay. Combustion phasing, in turn, would influence many other engine parameters. As injection timing is advanced, in-cylinder temperatures and pressures amplify, and intake and exhaust manifold pressures deteriorate. Rate of heat release and rate of heat transfer increase when injection timing is advanced. Turbocharger speed falls with the advancing injection timing. Torque, however, rose to a maximum then fell off again even though engine speed and fueling rate were held constant between different injection timings. Interestingly, the coefficient of heat transfer changes from a two peak curve to a smooth one peak curve as the injection timing is advanced further. The major conclusion of the study is that injection advance both positively and negatively influences the diesel engine's response which contributes to the brake fuel conversion efficiency.

McLean, James Elliott

2011-08-01T23:59:59.000Z

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


81

Quantum Dimensions and Quantum Galois Theory  

E-Print Network (OSTI)

The quantum dimensions of modules for vertex operator algebras are defined and their properties are discussed. The possible values of the quantum dimensions are obtained for rational vertex operator algebras. A criterion for simple currents of a rational vertex operator algebra is given. A full Galois theory for rational vertex operator algebras is established using the quantum dimensions.

Dong, Chongying; Xu, Feng

2012-01-01T23:59:59.000Z

82

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

E-Print Network (OSTI)

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 responding. ANOVAs showed that the nature of the stimulus was not a significant factor in length of MT, but distance between pedals and age-gender levels were found to have significant effects. For the actual braking maneuver, gender and the gender-by-age interaction were significant; in the stationary vehicle portion of the study, they were not. Mean foot MT for both genders over all conditions were 0.28 seconds for women and 0.22 seconds for men. For older drivers, over all conditions, the mean foot MT was 0.25 seconds, and, for the younger drivers, 0.24 seconds. Linear regressions revealed high intra-subject variation in MT, which was corroborated by comparing with data from other parts of the study. Poor r2 values for fitting the data to Fitts' Law and to a modification of Fitts' Law were attributed to this high intra-subject variation and to obtaining data from only two different movement amplitudes. It was found that drivers' foot MTs tended to converge to a common value when controlling the vehicle at 88 km/hr (55 mph) as opposed to sitting in the driver's seat while the vehicle was stationary; mean foot MT for each subject group decreased, and differences between genders and age groups significantly diminished while the car was in motion.

Berman, Andrea Helene

1994-01-01T23:59:59.000Z

83

Toy Stars in two dimensions  

E-Print Network (OSTI)

Toy Stars are gas masses where the compressibility is treated without approximations but gravity is replaced by a force which, for any pair of masses, is along their line of centres and proportional to their separation. They provide an invaluable resource for testing the suitability of numerical codes for astrophysical gas dynamics. In this paper we derive the equations for both small amplitude oscillations and non linear solutions for rotating and pulsating Toy Stars in two dimensions, and show that the solutions can be reduced to a small number of ordinary differential equations. We compare the accurate solutions of these equations with Smoothed Particle Hydrodynamics (SPH) simulations. The two dimensional Toy Star solutions are found to provide an excellent benchmark for SPH algorithms, highlighting many of the strengths and also some weaknesses of the method.

J. J. Monaghan; D. J. Price

2005-10-25T23:59:59.000Z

84

Black-body radiation in extra dimensions  

E-Print Network (OSTI)

The general form of the Stefan-Boltzmann law for the energy density of black-body radiation is generalized to a spacetime with extra dimensions using standard kinetic and thermodynamic arguments. From statistical mechanics one obtains an exact formula. In a field-theoretic derivation, the Maxwell field must be quantized. The notion of electric and magnetic fields is different in spacetimes with more than four dimensions. While the energy-momentum tensor for the Maxwell field is traceless in four dimensions, it is not so when there are extra dimensions. But it is shown that its thermal average is traceless and in agreement with the thermodynamic results.

H. Alnes; F. Ravndal; I. K. Wehus

2005-06-16T23:59:59.000Z

85

Higgs Bosons in Extra Dimensions  

E-Print Network (OSTI)

In this paper, motivated by the recent discovery of a Higgs-like boson at the LHC with a mass m_H\\simeq 126 GeV, we review different models where the hierarchy problem is solved by means of a warped extra dimension. In the Randall-Sundrum model electroweak observables provide very strong bounds on the mass of KK modes which motivates extensions to overcome this problem. Two extensions are briefly discussed. One particular extension is based on the deformation of the metric such that it strongly departs from the AdS_5 structure in the IR region while it goes asymptotically to AdS_5 in the UV brane. This model has the IR brane close to a naked metric singularity (which is outside the physical interval) characteristic of soft-walls constructions. The proximity of the singularity provides a strong wave-function renormalization for the Higgs field which suppresses the T and S parameters. The second class of considered extensions are based on the introduction of an extra gauge group in the bulk such that the custodial SU(2)_R symmetry is gauged and protects the T parameter. By further enlarging the bulk gauge symmetry one can find models where the Higgs is identified with the fifth component of gauge fields and for which the Higgs potential, along with the Higgs mass, can be dynamically determined by the Coleman-Weinberg mechanism.

Mariano Quiros

2013-11-12T23:59:59.000Z

86

VC-dimension and shortest path algorithms  

Science Conference Proceedings (OSTI)

We explore the relationship between VC-dimension and graph algorithm design. In particular, we show that set systems induced by sets of vertices on shortest paths have VC-dimension at most two. This allows us to use a result from learning theory to improve ...

Ittai Abraham; Daniel Delling; Amos Fiat; Andrew V. Goldberg; Renato F. Werneck

2011-07-01T23:59:59.000Z

87

Automatic detection of dimension errors in spreadsheets  

Science Conference Proceedings (OSTI)

We present a reasoning system for inferring dimension information in spreadsheets. This system can be used to check the consistency of spreadsheet formulas and thus is able to detect errors in spreadsheets. Our approach is based on three static analysis ... Keywords: Dimension, Error detection, Inference rule, Spreadsheet, Static analysis, Unit of measurement

Chris Chambers; Martin Erwig

2009-08-01T23:59:59.000Z

88

On SIC-POVMs in Prime Dimensions  

E-Print Network (OSTI)

The generalized Pauli group and its normalizer, the Clifford group, have a rich mathematical structure which is relevant to the problem of constructing symmetric informationally complete POVMs (SIC-POVMs). To date, almost every known SIC-POVM fiducial vector is an eigenstate of a "canonical" unitary in the Clifford group. I show that every canonical unitary in prime dimensions p > 3 lies in the same conjugacy class of the Clifford group and give a class representative for all such dimensions. It follows that if even one such SIC-POVM fiducial vector is an eigenvector of such a unitary, then all of them are (for a given such dimension). I also conjecture that in all dimensions d, the number of conjugacy classes is bounded above by 3 and depends only on d mod 9, and I support this claim with computer computations in all dimensions < 48.

Steven T. Flammia

2006-05-04T23:59:59.000Z

89

Solar energy generation in three dimensions  

E-Print Network (OSTI)

We formulate, solve computationally and study experimentally the problem of collecting solar energy in three dimensions. We demonstrate that absorbers and reflectors can be combined in the absence of sun tracking to build ...

Bernardi, Marco

90

Dark Energy, Inflation and Extra Dimensions  

E-Print Network (OSTI)

We consider how accelerated expansion, whether due to inflation or dark energy, imposes strong constraints on fundamental theories obtained by compactification from higher dimensions. For theories that obey the null energy condition (NEC), we find that inflationary cosmology is impossible for a wide range of compactifications; and a dark energy phase consistent with observations is only possible if both Newton's gravitational constant and the dark energy equation-of-state vary with time. If the theory violates the NEC, inflation and dark energy are only possible if the NEC-violating elements are inhomogeneously distributed in thecompact dimensions and vary with time in precise synchrony with the matter and energy density in the non-compact dimensions. Although our proofs are derived assuming general relativity applies in both four and higher dimensions and certain forms of metrics, we argue that similar constraints must apply for more general compactifications.

Paul J. Steinhardt; Daniel Wesley

2008-11-11T23:59:59.000Z

91

Rotating Black Holes in Higher Dimensions  

E-Print Network (OSTI)

The properties of higher-dimensional black holes can differ significantly from those of black holes in four dimensions, since neither the uniqueness theorem, nor the staticity theorem or the topological censorship theorem generalize to higher dimensions. We first discuss black holes of Einstein-Maxwell theory and Einstein-Maxwell-Chern-Simons theory with spherical horizon topology. Here new types of stationary black holes are encountered. We then discuss nonuniform black strings and present evidence for a horizon topology changing transition.

Burkhard Kleihaus; Jutta Kunz; Francisco Navarro-Lerida

2007-10-11T23:59:59.000Z

92

A preliminary assessment of asbestos awareness and control measures in brake and clutch repair services in Knoxville and Knox County, Tennessee  

SciTech Connect

The pending OSHA standard revision proposed in 1990 to lower the asbestos Permissible Exposure Limit (PEL) and to mandate effective asbestos control measures (ACM) in brake and clutch assembly work may have a profound effect on industries involved in such operations. Health protection of workers will be improved and costs of improved control methods and training will increase. Considering these facts, this preliminary study was designed to assess the level of worker and management awareness of asbestos hazards associated with brake and clutch repair and to determine what ACM had been implemented by businesses in Knoxville and Knox County, Tennessee. The study, in a metropolitan area of approximately 336,000 people, revealed eight different categories of businesses conducting brake and clutch repair work with an estimated 363 potentially exposed employees. Results of the study suggest that managers and employees of the 80 businesses studied were in need of asbestos hazard awareness training and more adequate asbestos control measures.

Phillips, C.C. (Oak Ridge National Lab., TN (United States)); Hamilton, C.B.

1994-04-01T23:59:59.000Z

93

symmetry magazine | dimensions of particle physics  

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

symmetry magazine symmetry magazine symmetry magazine dimensions of particle physics dimensions of particle physics A joint Fermilab/SLAC publication Search form Search Search Facebook Twitter RSS Feed subscribe masthead contact Home Departments application breaking commentary contest Day in the life Deconstruction Essay explain it in 60 seconds feature gallery Logbook Signal to background Science Topics applied science astrophysics Cosmic Frontier dark energy dark matter Energy Frontier extra dimensions Higgs boson Intensity Frontier neutrinos underground science Image Bank Archives Full Archives PDF Issues Print Editions sections subscribe application breaking commentary contest day in the life deconstruction essay explain it in 60 seconds feature gallery logbook signal to background Full Archives PDF Issues Print Editions

94

Integrable theories in any dimension: a perspective  

E-Print Network (OSTI)

We review the developments of a recently proposed approach to study integrable theories in any dimension. The basic idea consists in generalizing the zero curvature representation for two-dimensional integrable models to space-times of dimension $d+1$ by the introduction of a $d$-form connection. The method has been used to study several theories of physical interest, like self-dual Yang-Mills theories, Bogomolny equations, non-linear sigma models and Skyrme-type models. The local version of the generalized zero curvature involves a Lie algebra and a representation of it, leading to a number of conservation laws equal to the dimension of that representation. We discuss the conditions a given theory has to satisfy in order for its associated zero curvature to admit an infinite dimensional (reducible) representation. We also present the theory in the more abstract setting of the space of loops, which gives a deeper understanding and a more simple formulation of integrability in any dimension.

Orlando Alvarez; L. A. Ferreira; J. Sanchez Guillen

1999-03-19T23:59:59.000Z

95

Integrable theories in any dimension: a perspective  

Science Conference Proceedings (OSTI)

We review the developments of a recently proposed approach to study integrable theories in any dimension. The basic idea consists in generalizing the zero curvature representation for two-dimensional integrable models to space-times of dimension d+1 by the introduction of a d-form connection. The method has been used to study several theories of physical interest, like self-dual Yang-Mills theories, Bogomolny equations, non-linear sigma models and Skyrme-type models. The local version of the generalized zero curvature involves a Lie algebra and a representation of it, leading to a number of conservation laws equal to the dimension of that representation. We discuss the conditions a given theory has to satisfy in order for its associated zero curvature to admit an infinite dimensional (reducible) representation. We also present the theory in the more abstract setting of the space of loops, which gives a deeper understanding and a more simple formulation of integrability in any dimension.

Alvarez, Orlando [Department of Physics, University of Miami, P.O. Box 248046, Coral Gables, Florida 33124 (United States); Ferreira, L. A. [Instituto de Fisica Teorica-IFT/UNESP, Rua Pamplona 145, 01405-900 Sao Paulo-SP (Brazil); Guillen, J. Sanchez [Departamento de Fisica de Particulas, Facultad de Fisica, Universidad de Santiago, E-15706 Santiago de Compostela (Spain)

1999-07-13T23:59:59.000Z

96

Characterizing 3D shapes using fractal dimension  

Science Conference Proceedings (OSTI)

Developments in techniques for modeling and digitizing have made the use of 3D models popular to a large number of new applications. With the diffusion and spreading of 3D models employment, the demand for efficient search and retrieval methods is high. ... Keywords: 3D shape descriptor, complexity, fractal dimension

Danilo Medeiros Eler; Rosane Minghim; Odemir Martinez Bruno / Andr Ricardo Backes

2010-11-01T23:59:59.000Z

97

General quantum key distribution in higher dimension  

E-Print Network (OSTI)

We study a general quantum key distribution protocol in higher dimension. In this protocol, quantum states in arbitrary g+1 (1?g?d) out of all d+1 mutually unbiased bases in a d-dimensional system can be used for the key ...

Shi, Han-Duo

98

SIC-POVMs exist in all dimensions  

E-Print Network (OSTI)

It has been shown that a SIC-POVM is equivalent to spherical 2-design with n=d^2 elements. We use existence results for spherical 2-designs to show that SIC-POVMs exist for all dimensions d>1.

Hall, Joanne L

2007-01-01T23:59:59.000Z

99

Dimensioning optical networks under traffic growth models  

Science Conference Proceedings (OSTI)

In this paper, we consider the problem of dimensioning a large optical wavelength-division multiplexing (WDM) network assuming the traffic is growing over time. Traffic between pairs of nodes is carried through lightpaths which are high-bandwidth end-to-end ... Keywords: capacity allocation, capacity exhaustion probability, stochastic modeling, traffic growth model

Tapan Kumar Nayak; Kumar N. Sivarajan

2003-12-01T23:59:59.000Z

100

Broken Scale Invariance and Anomalous Dimensions  

DOE R&D Accomplishments (OSTI)

Mack and Kastrup have proposed that broken scale invariance is a symmetry of strong interactions. There is evidence from the Thirring model and perturbation theory that the dimensions of fields defined by scale transformations will be changed by the interaction from their canonical values. We review these ideas and their consequences for strong interactions.

Wilson, K. G.

1970-05-00T23:59:59.000Z

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


101

Interactivity dimension: media, contents, and user perception  

Science Conference Proceedings (OSTI)

This research explores interactivity dimension in the portal media (such as Yahoo, Naver, Daum, Paran, and Nate). The research is designed to measure user's perception of interactivity in the portal site at the three levels including 1) media 2) contents, ... Keywords: CMC, HCI, communication, community, hypertext, interactivity, interface

Sang Hee Kweon; Eun Joung Cho; Eun Mee Kim

2008-09-01T23:59:59.000Z

102

Enhancing Gabor wavelets using volumetric fractal dimension  

Science Conference Proceedings (OSTI)

Texture plays an important role on image analysis and computer vision. Local spatial variations of intensity and color indicate significant differences among several types of surfaces. One of the most widely adopted algorithms for texture analysis is ... Keywords: feature extraction, gabor wavelets, texture analysis, volumetric fractal dimension

Alvaro Gomez Zuniga; Odemir Martinez Bruno

2010-11-01T23:59:59.000Z

103

Main dimensions of human practical directives system  

SciTech Connect

A hypothesis is made that due to the uncertainty and complexity of the practical inference schemes, the acting subject exerts his/her own system of beliefs about efficient ways of attaining the given goals. These beliefs are termed here: Practical Directives, and their system: Practical Attitude. An attempt was made to reconstruct such a system and its main dimensions. To this end, an instrument was constructed: the Questionnaire of Practical Directives (QPD), which is meant as an operational definition of Practical Attitude. A group of 218 subjects was tested with the aid of QPD and the factor analysis of the results revealed nine factors interpreted as main dimensions of the system of Practical Directives. 19 refs.

Lewicka-Strzalecka, A.

1992-12-31T23:59:59.000Z

104

White dwarf cooling and large extra dimensions  

E-Print Network (OSTI)

Theories of fundamental interactions with large extra dimensions have recently become very popular. Astrophysical bounds from the Sun, red-giants and SN1987a have already been derived by other authors for the theory proposed by Arkani-Hamed, Dimopoulos and Dvali. In this paper we consider G117-B15A pulsating white dwarf (ZZ Ceti star) for which the secular rate at which the period of its fundamental mode increases has been accurately measured and claimed that this mode of G117-B15A is perhaps the most stable oscillation ever recorded in the optical band. Because an additional channel of energy loss (Kaluza-Klein gravitons) would speed up the cooling rate, one is able to use the aforementioned stability to derive a bound on theories with large extra dimensions. Within the framework of the theory with large extra dimensions proposed by Arkani-Hamed, Dimopoulos and Dvali we find the lower bound on string comapctification scale which is more stringent than solar or red-giant bounds.

Marek Biesiada; Beata Malec

2001-09-28T23:59:59.000Z

105

On Type II Strings in Two Dimensions  

E-Print Network (OSTI)

We consider type IIA/B strings in two-dimensions and their projection with respect to the nilpotent space-time supercharge. Based on the ground ring structure, we propose a duality between perturbed type II strings and the topological B-model on deformed Calabi-Yau singularities. Depending on the type II spectra, one has either the conifold or the suspended pinch point geometry. Using the corresponding quiver gauge theory, obtained by D-branes wrapping in the resolved suspended pinch point geometry, we propose the all orders perturbative partition function.

Harald Ita; Harald Nieder; Yaron Oz

2005-02-21T23:59:59.000Z

106

Instantons and Massless Fermions in Two Dimensions  

DOE R&D Accomplishments (OSTI)

The role of instantons in the breakdown of chiral U(N) symmetry is studied in a two dimensional model. Chiral U(1) is always destroyed by the axial vector anomaly. For N = 2 chiral SU(N) is also spontaneously broken yielding massive fermions and three (decoupled) Goldstone bosons. For N greater than or equal to 3 the fermions remain massless. Realistic four dimensional theories are believed to behave in a similar way but the critical N above which the fermions cease to be massive is not known in four dimensions.

Callan, C. G. Jr.; Dashen, R.; Gross, D. J.

1977-05-00T23:59:59.000Z

107

INVISIBLE HIGGS IN LARGE EXTRA DIMENSION MODELS  

E-Print Network (OSTI)

In large extra dimension models the presence of an interaction between the Ricci scalar curvature and the Higgs doublet of the Standard Model can give rise to an invisible decay of the Higgs to Kaluza Klein graviscalars. The corresponding invisible width can cause a suppression of the LHC rates of a light Higgs in the visible channels below 5? in some regions of the parameter space of the model. However in such regions the Higgs can be discovered through its invisible decay. The combination of the measurements done at the LHC and the LC can determine to some accuracy the parameters of the model. 1

Daniele Dominici

2004-01-01T23:59:59.000Z

108

On SIC-POVMs and MUBs in Dimension 6  

E-Print Network (OSTI)

We provide a partial solution to the problem of constructing mutually unbiased bases (MUBs) and symmetric informationally complete POVMs (SIC-POVMs) in non-prime-power dimensions. An algebraic description of a SIC-POVM in dimension six is given. Furthermore it is shown that several sets of three mutually unbiased bases in dimension six are maximal, i.e., cannot be extended.

Markus Grassl

2004-06-23T23:59:59.000Z

109

Accelerating Universe as Window for Extra Dimensions  

E-Print Network (OSTI)

Homogeneous cosmological solutions are obtained in five dimensional space time assuming equations of state $ p = k\\rho $ and $ p_{5}= \\gamma\\rho$ where p is the isotropic 3 - pressure and $p_{5}$, that for the fifth dimension. Using different values for the constants k and $\\gamma$ many known solutions are rediscovered. Further the current acceleration of the universe has led us to investigate higher dimensional gravity theory, which is able to explain acceleration from a theoretical view point without the need of introducing dark energy by hand. We argue that the terms containing higher dimensional metric coefficients produce an extra negative pressure that apparently drives an acceleration of the 3D space, tempting us to suggest that the accelerating universe seems to act as a window to the existence of extra spatial dimensions. Interestingly the 5D matter field remains regular while the \\emph{effective} negative pressure is responsible for the inflation. Relaxing the assumptions of two equations of state we also present a class of solutions which provide early deceleration followed by a late acceleration in a unified manner. Interesting to point out that in this case our cosmology apparently mimics the well known quintessence scenario fuelled by a generalised Chaplygin-type of fluid where a smooth transition from a dust dominated model to a de Sitter like one takes place.

D. Panigrahi; Y. Z. Zhang; S. Chatterjee

2006-04-19T23:59:59.000Z

110

Solar Energy Generation in Three Dimensions  

E-Print Network (OSTI)

Optimizing the conversion of solar energy to electricity is central to the World's future energy economy. Flat photovoltaic panels are commonly deployed in residential and commercial rooftop installations without sun tracking systems and using simple installation guidelines to optimize solar energy collection. Large-scale solar energy generation plants use bulky and expensive sun trackers to avoid cosine losses from photovoltaic panels or to concentrate sunlight with mirrors onto heating fluids.[1,2] However, none of these systems take advantage of the three-dimensional nature of our biosphere, so that solar energy collection largely occurs on flat structures in contrast with what is commonly observed in Nature.[3,4] Here we formulate, solve computationally and study experimentally the problem of collecting solar energy in three-dimensions.[5] We demonstrate that absorbers and reflectors can be combined in the absence of sun tracking to build three-dimensional photovoltaic (3DPV) structures that can generate ...

Bernardi, Marco; Wan, Jin H; Villalon, Rachelle; Grossman, Jeffrey C

2011-01-01T23:59:59.000Z

111

DDI, The Data and Dimensions Interface  

SciTech Connect

The Data and Dimensions Interface (DDI) addresses a significant problem in the visualization of large datasets: Extracting only the relevant data and providing it to a chosen destination in the required form without significant effort. Many different research communities have developed formats for storing and retrieving scientific data and its associated information. These format, while similar in their intent, are not intercompatible. Lack of support for these formats in commercial visualization systems has been an impediment to their use. Data file size may also cause problems; while sometimes generated on supercomputers, these files are often visualized on smaller machines. DDI was developed as a collaboration between the Program for Climate Model Diagnosis and Intercomparison (PCMDI) and the National Energy Research Supercomputer Center (NERSC), both of Lawrence Livermore National Laboratory (LLNL). DDI was inspired by the PCMDI Graphics Package, as well as NCSA Collage.

Anderson, C.L.; Drach, R.; Williams, D.N.

1994-04-01T23:59:59.000Z

112

Integrable Chiral Theories in 2+1 Dimensions  

E-Print Network (OSTI)

Following a recent proposal for integrable theories in higher dimensions based on zero curvature, new Lorentz invariant submodels of the principal chiral model in 2+1 dimensions are found. They have infinite local conserved currents, which are explicitly given for the su(2) case. The construction works for any Lie algebra and in any dimension, and it is given explicitly also for su(3). We comment on the application to supersymmetric chiral models.

D. Gianzo; J. O. Madsen; J. Sanchez Guillen

1998-05-15T23:59:59.000Z

113

One Loop Effects in Various Dimensions and D-Branes  

E-Print Network (OSTI)

We calculate some one loop corrections to the effective action of theories in $d$ dimensions that arise on the dimensional reduction of a Weyl fermion in $D$ dimensions. The terms that we are interested in are of a topological nature. Special attention is given to the effective actions of the super Yang Mills theories that arise on dimensional reduction of the N=1 theory in six dimensions or on the dimensional reduction of the N=1 theory in ten dimensions. In the latter case we suggest an interpretation of the quantum effect as a coupling of the gauge field on the brane to a relative background gauge field.

Chaouki Boulahouache; George Thompson

1998-01-13T23:59:59.000Z

114

The Size of Compact Extra Dimensions from Blackbody Radiation Laws  

E-Print Network (OSTI)

In this work we generalize the Stefan-Boltzmann and Wien's displacement laws for a D-dimensional spacetime composed by 4 non-compact dimensions and D-4 compact dimensions. The electromagnetic field is assumed to pervade all compact and non-compact dimensions. In particular, the total radiated power becomes R(T) = \\sigma_B T^4 + \\sigma_D (a) T^D, where a is the size of compact extra dimensions. For D=10, predicted from String Theory, and D=11, from M-Theory, the outcomes agree with available experimental data for a as high as 2 x 10^{-7} m.

Ramaton Ramos; Henrique Boschi-Filho

2011-11-10T23:59:59.000Z

115

The Size of Compact Extra Dimensions from Blackbody Radiation Laws  

E-Print Network (OSTI)

In this work we generalize the Stefan-Boltzmann and Wien's displacement laws for a D-dimensional spacetime composed by 4 non-compact dimensions and D-4 compact dimensions. The electromagnetic field is assumed to pervade all compact and non-compact dimensions. In particular, the total radiated power becomes R(T) = \\sigma_B T^4 + \\sigma_D (a) T^D, where a is the size of compact extra dimensions. For D=10, predicted from String Theory, and D=11, from M-Theory, the outcomes agree with available experimental data for a as high as 2 x 10^{-7} m.

Ramos, Ramaton

2011-01-01T23:59:59.000Z

116

Metastable Gravitons and Infinite Volume Extra Dimensions  

E-Print Network (OSTI)

We address the issue of whether extra dimensions could have an infinite volume and yet reproduce the effects of observable four-dimensional gravity on a brane. There is no normalizable zero-mode graviton in this case, nevertheless correct Newton's law can be obtained by exchanging bulk gravitons. This can be interpreted as an exchange of a single {\\it metastable} 4D graviton. Such theories have remarkable phenomenological signatures since the evolution of the Universe becomes high-dimensional at very large scales. Furthermore, the bulk supersymmetry in the infinite volume limit might be preserved while being completely broken on a brane. This gives rise to a possibility of controlling the value of the bulk cosmological constant. Unfortunately, these theories have difficulties in reproducing certain predictions of Einstein's theory related to relativistic sources. This is due to the van Dam-Veltman-Zakharov discontinuity in the propagator of a massive graviton. This suggests that all theories in which contributions to effective 4D gravity come predominantly from the bulk graviton exchange should encounter serious phenomenological difficulties.

G. Dvali; G. Gabadadze; M. Porrati

2000-02-22T23:59:59.000Z

117

Blackbody radiation with compact and non-compact extra dimensions  

E-Print Network (OSTI)

The problem of blackbody radiation in flat space with non-compact extra dimensions was analysed recently. In the present article we reanalyse this problem with compact (and non-compact) extra dimensions in flat space to observe the consequences of this approach upon Wien's displacement and Stefan-Boltzmann law.

Ramaton Ramos; Henrique Boschi-Filho

2009-10-08T23:59:59.000Z

118

Software application implement in java for electrical lines dimensioning  

Science Conference Proceedings (OSTI)

In this paper it was present a software package implemented in java useful for dimensioning of low voltage lines mono phase and three phases (AC and DC). The modeled networks are tree type. This software with graphical user interface allows the estimation ... Keywords: computer software, electrical lines, java, optimal dimensioning

Cristian Abrudean; Manuela Panoiu

2008-11-01T23:59:59.000Z

119

Estimating the Fractal Dimension and the Predictability of the Atmosphere  

Science Conference Proceedings (OSTI)

The fractal dimension, Lyapunov-exponent spectrum, Kolmogorov entropy, and predictability are analyzed for chaotic attractors in the atmosphere by analyzing the time series of daily surface temperature and pressure over several regions of the ...

X. Zeng; R. A. Pielke; R. Eykholt

1992-04-01T23:59:59.000Z

120

A Conservative Front Tracking Method in N-Dimensions  

Science Conference Proceedings (OSTI)

We propose a fully conservative Front Tracking algorithm for systems of nonlinear conservation laws. The algorithm can be applied uniformly in one, two, three and N dimensions. Implementation details for this algorithm ... Keywords: Front tracking, conservation, discontinuity

Jinjie Liu; Hyun-Kyung Lim; James Glimm; Xiaolin Li

2007-05-01T23:59:59.000Z

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


121

Symmetry-Protected Quantum Spin Hall Phases in Two Dimensions  

E-Print Network (OSTI)

Symmetry-protected topological (SPT) states are short-range entangled states with symmetry. Nontrivial SPT states have symmetry-protected gapless edge excitations. In 2 dimension (2D), there are an infinite number of ...

Liu, Zheng-Xin

122

The Higgs boson as a gauge field in extra dimensions  

E-Print Network (OSTI)

I review, at a general non-technical level, the main properties of models in extra dimensions where the Higgs field is identified with some internal component of a gauge field.

Marco Serone

2005-08-01T23:59:59.000Z

123

DeWitt-Schwinger Renormalization of $$ in $d$ Dimensions  

E-Print Network (OSTI)

A compact expression for the DeWitt-Schwinger renormalization terms suitable for use in even-dimensional space-times is derived. This formula should be useful for calculations of $$ and $$ in even dimensions.

Robert T. Thompson; Jos P. S. Lemos

2010-11-11T23:59:59.000Z

124

Einstein's Dream of Unified Forces - extra dimensions | U.S....  

Office of Science (SC) Website

are they hidden? What are the new particles associated with extra dimensions? Through the production of new particles that move in the extra space, the LHC experiments will have...

125

Electric and magnetic Weyl tensors in higher dimensions  

E-Print Network (OSTI)

Recent results on purely electric (PE) or magnetic (PM) spacetimes in n dimensions are summarized. These include: Weyl types; diagonalizability; conditions under which direct (or warped) products are PE/PM.

Sigbjrn Hervik; Marcello Ortaggio; Lode Wylleman

2013-01-16T23:59:59.000Z

126

Estimating the Dimensions of Weather and Climate Attractors  

Science Conference Proceedings (OSTI)

The dimensions of attractors are estimated from phase space trajectories of observed weather and climate variables (local surface pressure and relative sunshine duration, zonal wave amplitude; a ?18O-record). They provide primary information for ...

Klaus Fraedrich

1986-03-01T23:59:59.000Z

127

Lightcone fluctuations in quantum gravity and extra dimensions  

E-Print Network (OSTI)

We discuss how compactified extra dimensions may have potentially observable effects which grow as the compactification scale decreases. This arises because of lightcone fluctuations in the uncompactified dimensions which can result in the broadening of the spectral lines from distant sources. We analyze this effect in a five dimensional model, and argue that data from gamma ray burst sources require the compactification length to be greater than about $10^5$ cm in this model.

Hongwei Yu; L. H. Ford

1999-07-08T23:59:59.000Z

128

Dimension: an instrumentation tool for virtual execution environments  

E-Print Network (OSTI)

Translation-based virtual execution environments (VEEs) are becoming increasingly popular because of their usefulness. With dynamic translation, a program in a VEE has two binaries: an input source binary and a dynamically generated target binary. Program analysis is important for these binaries, and both the developers and users of VEEs need an instrumentation system to customize program analysis tools. However, existing instrumentation systems for use in VEEs have two drawbacks. First, they are tightly bound with a specific VEE and thus are difficult to reuse without a lot of effort. Second, most of them can not support instrumentation on both the source and target binaries. This paper presents Dimension, a flexible tool that provides instrumentation services for a variety of VEEs. To our knowledge, it is the first stand-alone instrumentation tool that is specially designed for use in VEEs. Given an instrumentation specification, Dimension can be used by a VEE to provide customized instrumentation, enabling analyses on both the source and target binaries. We present two case studies demonstrating that Dimension can be reused easily by different VEEs. We experiment with the two cases and show that the same instrumentation provided by Dimension does not lose efficiency compared to its manual implementation for that particular VEE (the average performance difference is within 2%). We also illustrate that by interfacing with a special VEE that has the same source and target binary formats, Dimension can be used to build an efficient dynamic instrumentation system for traditional execution environments.

Jing Yang; Shukang Zhou; Mary Lou Soffa

2006-01-01T23:59:59.000Z

129

Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon |  

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

Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon July 14, 2011 - 11:57am Addthis Team Massachusetts' Project Manager Spencer Culhane puts the finishing touches on the team's design model. | Courtesy of the Team Massachusetts Flickr photostream Team Massachusetts' Project Manager Spencer Culhane puts the finishing touches on the team's design model. | Courtesy of the Team Massachusetts Flickr photostream Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy In honor of the U.S. Department of Energy Solar Decathlon -- which challenges 20 collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive -- we are

130

Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon |  

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

Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon Team Massachusetts Brings a Fourth Dimension to the Solar Decathlon July 14, 2011 - 11:57am Addthis Team Massachusetts' Project Manager Spencer Culhane puts the finishing touches on the team's design model. | Courtesy of the Team Massachusetts Flickr photostream Team Massachusetts' Project Manager Spencer Culhane puts the finishing touches on the team's design model. | Courtesy of the Team Massachusetts Flickr photostream Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy In honor of the U.S. Department of Energy Solar Decathlon -- which challenges 20 collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive -- we are

131

Affordability Contest Adds New Dimension to Solar Decathlon 2011 |  

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

Affordability Contest Adds New Dimension to Solar Decathlon 2011 Affordability Contest Adds New Dimension to Solar Decathlon 2011 Affordability Contest Adds New Dimension to Solar Decathlon 2011 September 27, 2011 - 10:20am Addthis Matt Hansen reviews each team’s design drawings and construction specifications to estimate the total construction cost of its house. (Credit: Alexis Power/U.S. Department of Energy Solar Decathlon) Matt Hansen reviews each team's design drawings and construction specifications to estimate the total construction cost of its house. (Credit: Alexis Power/U.S. Department of Energy Solar Decathlon) Alexis Powers EDITOR'S NOTE: Originally posted on the Solar Decathlon News Blog on September 26, 2011. The big buzz word in Washington, D.C., these days is budget. In the solar village at West Potomac Park, cost savings are top of mind for the

132

CKM pattern from localized Generations in Extra Dimension  

E-Print Network (OSTI)

We revisit the issue of the quark masses and mixing angles in the framework of large extra dimension. We consider three identical standard model families resulting from higher-dimensional fields localized on different branes embedded in a large extra dimension. Furthermore we use a decaying profile in the bulk different form previous works. With the Higgs field also localized on a different brane, the hierarchy of masses between the families results from their different positions in the extra space. When the left-handed doublet and the right-handed singlets are localized with different couplings on the branes, we found a set of brane locations in one extra dimension which leads to the correct quark masses and mixing angles with the sufficient strength of CP-violation. We see that the decaying profile of the Higgs field plays a crucial role for producing the hierarchies in a rather natural way.

C. Matti

2006-06-14T23:59:59.000Z

133

The gravitational cusp anomalous dimension from AdS space  

E-Print Network (OSTI)

Recently a new picture has been developed for examining Wilson lines, and the corresponding anomalous dimensions which govern their renormalization properties. By making a particular coordinate transform, the calculation of the cusp anomalous dimension in QED or QCD can be related to the energy of a pair of static charges in Euclidean Anti-de-Sitter (AdS) space. This paper shows how the same picture can be used to describe Wilson lines in quantum gravity. We show how the relevant cusp anomalous dimension (which has recently been shown to be one loop exact) can be obtained using the Newtonian limit of General Relativity. We also show how both the QED and gravity cases emerge as special cases of a general formulation, and that a continuous parameter exists which interpolates between them. The results may be useful in examining the relations between gauge and gravity theories.

Miller, D J

2012-01-01T23:59:59.000Z

134

A New Approach to Integrable Theories in any Dimension  

E-Print Network (OSTI)

The zero curvature representation for two dimensional integrable models is generalized to spacetimes of dimension d+1 by the introduction of a d-form connection. The new generalized zero curvature conditions can be used to represent the equations of motion of some relativistic invariant field theories of physical interest in 2+1 dimensions (BF theories, Chern-Simons, 2+1 gravity and the CP^1 model) and 3+1 dimensions (self-dual Yang-Mills theory and the Bogomolny equations). Our approach leads to new methods of constructing conserved currents and solutions. In a submodel of the 2+1 dimensional CP^1 model, we explicitly construct an infinite number of previously unknown nontrivial conserved currents. For each positive integer spin representation of sl(2) we construct 2j+1 conserved currents leading to 2j+1 Lorentz scalar charges.

Orlando Alvarez; Luiz A. Ferreira; J. Sanchez Guillen

1997-10-18T23:59:59.000Z

135

The gravitational cusp anomalous dimension from AdS space  

E-Print Network (OSTI)

Recently a new picture has been developed for examining Wilson lines, and the corresponding anomalous dimensions which govern their renormalization properties. By making a particular coordinate transform, the calculation of the cusp anomalous dimension in QED or QCD can be related to the energy of a pair of static charges in Euclidean Anti-de-Sitter (AdS) space. This paper shows how the same picture can be used to describe Wilson lines in quantum gravity. We show how the relevant cusp anomalous dimension (which has recently been shown to be one loop exact) can be obtained using the Newtonian limit of General Relativity. We also show how both the QED and gravity cases emerge as special cases of a general formulation, and that a continuous parameter exists which interpolates between them. The results may be useful in examining the relations between gauge and gravity theories.

D. J. Miller; C. D. White

2012-01-11T23:59:59.000Z

136

On the selection of dimension reduction techniques for scientific applications  

Science Conference Proceedings (OSTI)

Many dimension reduction methods have been proposed to discover the intrinsic, lower dimensional structure of a high-dimensional dataset. However, determining critical features in datasets that consist of a large number of features is still a challenge. In this paper, through a series of carefully designed experiments on real-world datasets, we investigate the performance of different dimension reduction techniques, ranging from feature subset selection to methods that transform the features into a lower dimensional space. We also discuss methods that calculate the intrinsic dimensionality of a dataset in order to understand the reduced dimension. Using several evaluation strategies, we show how these different methods can provide useful insights into the data. These comparisons enable us to provide guidance to a user on the selection of a technique for their dataset.

Fan, Y J; Kamath, C

2012-02-17T23:59:59.000Z

137

Spectral dimension in graph models of causal quantum gravity  

E-Print Network (OSTI)

The phenomenon of scale dependent spectral dimension has attracted special interest in the quantum gravity community over the last eight years. It was first observed in computer simulations of the causal dynamical triangulation (CDT) approach to quantum gravity and refers to the reduction of the spectral dimension from 4 at classical scales to 2 at short distances. Thereafter several authors confirmed a similar result from different approaches to quantum gravity. Despite the contribution from different approaches, no analytical model was proposed to explain the numerical results as the continuum limit of CDT. In this thesis we introduce graph ensembles as toy models of CDT and show that both the continuum limit and a scale dependent spectral dimension can be defined rigorously. First we focus on a simple graph ensemble, the random comb. It does not have any dynamics from the gravity point of view, but serves as an instructive toy model to introduce the characteristic scale of the graph, study the continuum limit and define the scale dependent spectral dimension. Having defined the continuum limit, we study the reduction of the spectral dimension on more realistic toy models, the multigraph ensembles, which serve as a radial approximation of CDT. We focus on the (recurrent) multigraph approximation of the two-dimensional CDT whose ensemble measure is analytically controlled. The latter comes from the critical Galton-Watson process conditioned on non-extinction. Next we turn our attention to transient multigraph ensembles, corresponding to higher-dimensional CDT. Firstly we study their fractal properties and secondly calculate the scale dependent spectral dimension and compare it to computer simulations. We comment further on the relation between Horava-Lifshitz gravity, asymptotic safety, multifractional spacetimes and CDT-like models.

Georgios Giasemidis

2013-10-30T23:59:59.000Z

138

Exploring small extra dimensions at the large hadron collider.  

E-Print Network (OSTI)

been shown that the ATLAS detector at the Large Hadron Collider can identify such narrow states up to a mass of 2080 GeV in the decay mode G ? e+e?, using a conservative model. This work extends the study of the e+e? channel over the full accessible... , the underlying parameters can be extracted. In one test model, the size of the extra dimension can be determined to a precision in length of 7 10?33 m. Keywords: Hadronic Colliders, Beyond Standard Model, Extra Large Dimensions. Contents 1. Introduction 1 2...

Allanach, B C; Odagiri, Kosuke; Palmer, M J; Parker, Michael A; Sabetfakhri, A; Webber, Bryan R

139

Countintg Extra Dimensions: Magnetic Cherenkov Radiation from High Energy Neutrinos  

E-Print Network (OSTI)

In theories which require a space of dimension d>4, there is a natural mechanism of suppressing neutrino masses: while Standard Model fields are confined to a 3-brane, right handed neutrinos live in the bulk. Due to Kaluza-Klein excitations, the effective magnetic moments of neutrinos are enhanced. The effective magnetic moment is a monotonically growing function of the energy of the neutrino: consequently, high energy neutrinos can emit observable amounts of magnetic Cherenkov radiation. By observing the energy dependence of the magnetic Cherenkov radiation, one may be able to determine the number of compactified dimensions.

G. Domokos; Andrea Erdas; S. Kovesi-Domokos

2002-12-30T23:59:59.000Z

140

Search for Universal Extra Dimensions with the D0 Experiment  

E-Print Network (OSTI)

A search for signs of universal extra dimensions (UED) has been performed with the D0 experiment, using events with two same-sign muons. The considered minimal UED model includes one extra dimension, and has a stable lightest Kaluza-Klein particle (LKP) which is a dark matter candidate. In the search, 7.3 fb^{-1} of D0 data, collected in p\\bar{p} collisions at the Fermilab Tevatron collider at \\surd\\bar{s} = 1.96 TeV, have been used.

Mansour, Jason D

2011-01-01T23:59:59.000Z

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


141

Search for Universal Extra Dimensions with the D0 Experiment  

SciTech Connect

A search for signs of universal extra dimensions (UED) has been performed with the D0 experiment, using events with two same-sign muons. The considered minimal UED model includes one extra dimension, and has a stable lightest Kaluza-Klein particle (LKP) which is a dark matter candidate. In the search, 7.3 fb{sup -1} of D0 data, collected in p{bar p} collisions at the Fermilab Tevatron collider at {radical}s = 1.96 TeV, have been used.

Mansour, Jason D.

2011-10-01T23:59:59.000Z

142

A procedure to Estimate the Fractal Dimension of Waveforms  

E-Print Network (OSTI)

A method is described for calculating the approximate fractal dimension from a set of N values y sampled from a waveform between time zero and t. The waveform was subjected to a double linear transformation that maps it into a unit square.

Carlos Sevcik

2010-03-27T23:59:59.000Z

143

Multi-element probabilistic collocation method in high dimensions  

Science Conference Proceedings (OSTI)

We combine multi-element polynomial chaos with analysis of variance (ANOVA) functional decomposition to enhance the convergence rate of polynomial chaos in high dimensions and in problems with low stochastic regularity. Specifically, we employ the multi-element ... Keywords: Domain decomposition, Sparse grids, Stochastic partial differential equations

Jasmine Foo; George Em Karniadakis

2010-03-01T23:59:59.000Z

144

Estimating the Correlation Dimension of Atmospheric Time Series  

Science Conference Proceedings (OSTI)

The correlation dimension D is commonly used to quantify the chaotic structure of atmospheric time series. The standard algorithm for estimating the value of D is based on finding the slope of the curve obtained by plotting ln C(r) versus ln r, ...

Hampton N. Shirer; Christian J. Fosmire; Robert Wells; Laurentia Suciu

1997-01-01T23:59:59.000Z

145

Dimensioning and operating wind-hydrogen plants in power markets  

Science Conference Proceedings (OSTI)

This paper presents a two-step method for dimensioning and time-sequential operation of Wind-hydrogen (H2) plants operating in power markets. Step 1 involves identification of grid constraints and marginal power losses through load flow simulations. ... Keywords: distributed generation, hydrogen, quadratic optimization, renewable energy, weak grids, wind power

Christopher J. Greiner; Magnus Korps; Terje Gjengedal

2008-07-01T23:59:59.000Z

146

VC-Dimension Analysis of Object Recognition Tasks  

Science Conference Proceedings (OSTI)

We analyze the amount of data needed to carry out various model-based recognition tasks in the context of a probabilistic data collection model. We focus on objects that may be described as semi-algebraic subsets of a Euclidean space. This is a very ... Keywords: PAC, Vapnik-Chervonenkis dimension, computer vision, learning theory, localization, model-based recognition

Michael Lindenbaum; Shai Ben-David

1999-01-01T23:59:59.000Z

147

Scale-dependent mass anomalous dimension from Dirac eigenmodes  

E-Print Network (OSTI)

We investigate the eigenmodes of the massless Dirac operator to extract the scale-dependent fermion mass anomalous dimension gamma_m(mu). By combining simulations on multiple lattice volumes, and when possible several gauge couplings, we are able to measure the anomalous dimension across a wide range of energy scales. The method that we present is universal and can be applied to any lattice model of interest, including both conformal or chirally broken systems. We consider SU(3) lattice gauge theories with Nf=4, 8 and 12 light or massless fermions. The 4-flavor model behaves as expected for a QCD-like system and demonstrates that systematic effects are manageable in practical lattice calculations. Our 12-flavor results are consistent with the existence of an infrared fixed point, at which we predict the scheme-independent mass anomalous dimension gamma_m^*=0.32(3). For the 8-flavor model we observe a large anomalous dimension across a wide range of energy scales. Further investigation is required to determine whether Nf=8 is chirally broken and walking, or if it possesses a strongly-coupled conformal fixed point.

Anqi Cheng; Anna Hasenfratz; Gregory Petropoulos; David Schaich

2013-01-07T23:59:59.000Z

148

Keeping up appearances: understanding the dimensions of incidental information privacy  

Science Conference Proceedings (OSTI)

We conducted a survey of 155 participants to examine privacy concerns relating to the viewing of incidental information (i.e. traces of previous activity unrelated to the task at hand) in web browsers. We have identified several dimensions of privacy ... Keywords: collaboration, incidental information, privacy, survey, web browsing

Kirstie Hawkey; Kori M. Inkpen

2006-04-01T23:59:59.000Z

149

Probing the 5th Dimension with the QCD String  

E-Print Network (OSTI)

A salient feature of String/Gauge duality is an extra 5th dimension. Here we study the effect of confining deformations of AdS5 and compute the spectrum of a string stretched between infinitely massive quarks and compare it with the quantum states of the QCD flux as determined by Kuti, Juge and Morningstar in lattice simulations. In the long flux tube limit the AdS string probes the metric near the IR cutoff of the 5th dimension with a spectrum approximated by a Nambu-Goto string in 4-d flat space, whereas at short distance the string moves to the UV region with a discrete spectrum for pure AdS5. We also review earlier results on glueballs states and the cross-over between hard and soft diffractive scattering that support this picture.

Richard C. Brower; Chung-I Tan; Ethan Thompson

2005-03-29T23:59:59.000Z

150

SIC-POVMs and MUBs: Geometrical Relationships in Prime Dimension  

E-Print Network (OSTI)

The paper concerns Weyl-Heisenberg covariant SIC-POVMs (symmetric informationally complete positive operator valued measures) and full sets of MUBs (mutually unbiased bases) in prime dimension. When represented as vectors in generalized Bloch space a SIC-POVM forms a d^2-1 dimensional regular simplex (d being the Hilbert space dimension). By contrast, the generalized Bloch vectors representing a full set of MUBs form d+1 mutually orthogonal d-1 dimensional regular simplices. In this paper we show that, in the Weyl-Heisenberg case, there are some simple geometrical relationships between the single SIC-POVM simplex and the d+1 MUB simplices. We go on to give geometrical interpretations of the minimum uncertainty states introduced by Wootters and Sussman, and by Appleby, Dang and Fuchs, and of the fiduciality condition given by Appleby, Dang and Fuchs.

D. M. Appleby

2009-05-09T23:59:59.000Z

151

SIC-POVMs and MUBs: Geometrical Relationships in Prime Dimension  

E-Print Network (OSTI)

The paper concerns Weyl-Heisenberg covariant SIC-POVMs (symmetric informationally complete positive operator valued measures) and full sets of MUBs (mutually unbiased bases) in prime dimension. When represented as vectors in generalized Bloch space a SIC-POVM forms a d^2-1 dimensional regular simplex (d being the Hilbert space dimension). By contrast, the generalized Bloch vectors representing a full set of MUBs form d+1 mutually orthogonal d-1 dimensional regular simplices. In this paper we show that, in the Weyl-Heisenberg case, there are some simple geometrical relationships between the single SIC-POVM simplex and the d+1 MUB simplices. We go on to give geometrical interpretations of the minimum uncertainty states introduced by Wootters and Sussman, and by Appleby, Dang and Fuchs, and of the fiduciality condition given by Appleby, Dang and Fuchs.

Appleby, D M

2009-01-01T23:59:59.000Z

152

Large Extra Dimensions, Sterile Neutrinos and Solar Neutrino Data  

Science Conference Proceedings (OSTI)

Solar, atmospheric, and LSND neutrino oscillation results require a light sterile neutrino, {nu}{sub B} , which can exist in the bulk of extra dimensions. Solar {nu}{sub e} , confined to the brane, can oscillate in the vacuum to the zero mode of {nu}{sub B} and via successive Mikheyev-Smirnov-Wolfenstein transitions to Kaluza-Klein states of {nu}{sub B} . This new way to fit solar data is provided by both low and intermediate string scale models. From average rates seen in the three types of solar experiments, the Super-Kamiokande spectrum is predicted with 73% probability, but dips characteristic of the 0.06 mm extra dimension should be seen in the SNO spectrum.

Caldwell, D. O.; Mohapatra, R. N.; Yellin, S. J.

2001-07-23T23:59:59.000Z

153

Destabilization of Neutron Stars by Type I Dimension Bubbles  

E-Print Network (OSTI)

An inhomogeneous compactification of a higher dimensional spacetime can result in the formation of type I dimension bubbles, i.e., nontopological solitons which tend to absorb and entrap massive particle modes. We consider possible consequences of a neutron star that harbors such a soliton. The astrophysical outcome depends upon the model parameters for the dimension bubble, with a special sensitivity to the bubble's energy scale. For relatively small energy scales, the bubble tends to rapidly consume the star without forming a black hole. For larger energy scales, the bubble grows to a critical mass, then forms a black hole within the star, which subsequently causes the remaining star to collapse. It is possible that the latter scenario is associated with core collapse explosions and gamma ray bursts.

E. I. Guendelman; J. R. Morris

2005-01-16T23:59:59.000Z

154

CP phase from twisted Higgs VEV in extra dimension  

E-Print Network (OSTI)

We propose a new mechanism for generating CP phase via Higgs vacuum expectation value originating from geometry of an extra dimension. Allowing a twisted boundary condition for the Higgs doublet drives us into an extra-dimension-coordinate-dependent vacuum expectation value containing a CP phase degree of freedom. With this mechanism, we construct a phenomenological model on S1 which can simultaneously and naturally explain the origin of fermion generation, quark mass hierarchy, and the structure of the Cabibbo-Kobayashi-Maskawa matrix with the CP phase. By introducing point interactions, which are additional boundary points on S1, the 5D quarks realize the three generations. Our situation is phenomenologically-preferred one since all the flavor structures are realized with good precision and almost all dimensionless scaled parameters take values of natural O(10) magnitudes. An almost exponential vacuum expectation value profile of a scalar singlet, which appears in the Yukawa sector, helps the naturalness in...

Fujimoto, Yukihiro; Sakamoto, Makoto

2013-01-01T23:59:59.000Z

155

Universal four-component Fermi gas in one dimension  

SciTech Connect

A four-component Fermi gas in one dimension with a short-range four-body interaction is shown to exhibit a one-dimensional analog of the BCS-BEC crossover. Its low-energy physics is governed by a Tomonaga-Luttinger liquid with three spin gaps. The spin gaps are exponentially small in the weak coupling (BCS) limit where they arise from the charge-density-wave instability, and become large in the strong coupling (BEC) limit because of the formation of tightly bound tetramers. We investigate the ground-state energy, the sound velocity, and the gap spectrum in the BCS-BEC crossover and discuss exact relationships valid in our system. We also show that a one-dimensional analog of the Efimov effect occurs for five bosons while it is absent for fermions. Our work opens up a very rich field of universal few-body and many-body physics in one dimension.

Nishida, Yusuke [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Son, Dam T. [Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550 (United States)

2010-10-15T23:59:59.000Z

156

Dimensioning Guidelines for Applying Insulators in Contaminated Environments  

Science Conference Proceedings (OSTI)

A particular weakness of outdoor substations is the external insulation. The insulation is particularly susceptible to failure if proper attention has not been given to its design, condition monitoring, and maintenance. In regions characterized by high contamination levels, appropriate dimensioning, regular maintenance, and the application of palliative measures can be critical to ensure that the system meets its outage performance targets. This can involve pure maintenance measures such as ...

2013-12-17T23:59:59.000Z

157

String-corrected dilatonic black holes in d dimensions  

Science Conference Proceedings (OSTI)

We solve the dilaton field equation in the background of a spherically symmetric black hole in bosonic or heterotic string theory with curvature-squared corrections in arbitrary d spacetime dimensions. We then apply this result to obtain a spherically symmetric black hole solution with dilatonic charge and curvature-squared corrections in bosonic or heterotic string theory compactified on a torus. For this black hole, we obtain its free energy, entropy, temperature, specific heat, and mass.

Moura, Filipe [Centro de Matematica da Universidade do Minho, Escola de Ciencias, Campus de Gualtar, 4710-057 Braga (Portugal)

2011-02-15T23:59:59.000Z

158

Extended Poincare supersymmetry in three dimensions and supersymmetric anyons  

SciTech Connect

We classify the unitary representations of the extended Poincare supergroups in three dimensions. Irreducible unitary representations of any spin can appear, which correspond to supersymmetric anyons. Our results also show that all irreducible unitary representations necessarily have physical momenta. This is in sharp contrast to the ordinary Poincare group that admits in addition irreducible unitary representations with nonphysical momenta, which are discarded on physical grounds.

Chaichian, M.; Tureanu, A. [Department of Physics, University of Helsinki, P.O. Box 64, 00014 Helsinki (Finland) and School of Mathematics and Statistics, University of Sydney, Sydney (Australia); Zhang, R. B. [School of Mathematics and Statistics, University of Sydney, Sydney (Australia)

2012-07-15T23:59:59.000Z

159

SIC~POVMs and Clifford groups in prime dimensions  

E-Print Network (OSTI)

We show that in prime dimensions not equal to three, each group covariant symmetric informationally complete positive operator valued measure (SIC~POVM) is covariant with respect to a unique Heisenberg--Weyl (HW) group. Moreover, the symmetry group of the SIC~POVM is a subgroup of the Clifford group. Hence, two SIC~POVMs covariant with respect to the HW group are unitarily or antiunitarily equivalent if and only if they are on the same orbit of the extended Clifford group. In dimension three, each group covariant SIC~POVM may be covariant with respect to three or nine HW groups, and the symmetry group of the SIC~POVM is a subgroup of at least one of the Clifford groups of these HW groups respectively. There may exist two or three orbits of equivalent SIC~POVMs for each group covariant SIC~POVM, depending on the order of its symmetry group. We then establish a complete equivalence relation among group covariant SIC~POVMs in dimension three, and classify inequivalent ones according to the geometric phases associated with fiducial vectors. Finally, we uncover additional SIC~POVMs by regrouping of the fiducial vectors from different SIC~POVMs which may or may not be on the same orbit of the extended Clifford group.

Huangjun Zhu

2010-03-18T23:59:59.000Z

160

SIC-POVMs and Clifford groups in prime dimensions  

E-Print Network (OSTI)

We show that in prime dimensions not equal to 3, each group covariant symmetric informationally complete positive operator valued measure (SIC-POVM) is covariant with respect to a unique Heisenberg-Weyl (HW) group. Moreover, the symmetry group of the SIC-POVM is a subgroup of the Clifford group. And two SIC-POVMs covariant with respect to the HW group are unitary or antiunitary equivalent if and only if they are on the same orbit of the extended Clifford group. In dimension 3, each group covariant SIC-POVM may be covariant with respect to 3 or 9 HW groups, and the symmetry group of the SIC-POVM is a subgroup of at least one of the Clifford groups of these HW groups respectively. There may exist 2 or 3 equivalent orbits for each group covariant SIC-POVM. We also establish a complete equivalence relationship of group covariant SIC-POVMs in dimension 3, and classify all inequivalent ones according to the geometric phases associated with fiducial vectors.

Zhu, Huangjun

2010-01-01T23:59:59.000Z

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


161

Bounds on models with one latticized extra dimension  

E-Print Network (OSTI)

We study an extension of the standard model with one latticized extra dimension accessible to all fields. The model is characterized by the size of the extra dimension and the number of sites, and contains a tower of massive particles. At energies lower than the mass of the new particles there are no tree-level effects. Therefore, bounds on the scale of new physics can only be set from one-loop processes. We calculate several observables sensitive to loop-effects, such as the $\\rho$ parameter, $b\\to s \\gamma$, $Z\\to b\\bar b$, and the $B^0\\rightleftharpoons\\bar{B}^0$ mixing, and use them to set limits on the lightest new particles for different number of sites. It turns out that the continuous result is rapidly reached when the extra dimension is discretized in about 10 to 20 sites only. For small number of sites the bounds placed on the usual continuous scenario can be reduced by roughly a factor of 10%--25%, which means that the new particles can be as light as $320 {GeV}$. Finally, we briefly discuss an alternative model in which fermions do not have additional modes.

J. F. Oliver; J. Papavassiliou; A. Santamaria

2003-06-30T23:59:59.000Z

162

Spin in the worldline path integral in 2 + 1 dimensions  

Science Conference Proceedings (OSTI)

We present a constructive derivation of a worldline path integral for the effective action and the propagator of a Dirac field in 2 + 1 dimensions, in terms of spacetime and SU(2) paths. After studying some general properties of this representation, we show that the auxiliary gauge-group variable can be integrated, deriving a worldline action depending only on x({tau}), the spacetime paths. We then show that the functional integral automatically imposes the constraint x{sup .2}({tau})=1, while there is a spin action, which agrees with the one one should expect for a spin-1/2 field.

Fosco, C.D. [Centro Atomico Bariloche and Instituto Balseiro, Comision Nacional de Energia Atomica, 8400 Bariloche (Argentina); Sanchez-Guillen, J. [Departamento de Fisica de Particulas, Facultad de Fisica and Instituto Galego de Fisica de Altas Energias, Universidad de Santiago, E-15782 Santiago de Compostela (Spain); Vazquez, R.A. [Departamento de Fisica de Particulas, Facultad de Fisica and Instituto Galego de Fisica de Altas Energias, Universidad de Santiago, E-15782 Santiago de Compostela (Spain)], E-mail: vazquez@fpaxp1.usc.es

2008-02-15T23:59:59.000Z

163

Massive gravity with mass term in three dimensions  

Science Conference Proceedings (OSTI)

We analyze the effect of the Pauli-Fierz mass term on a recently established, new massive gravity theory in three space-time dimensions. We show that the Pauli-Fierz mass term makes the new massive gravity theory nonunitary. Moreover, although we add the gravitational Chern-Simons term to this model, the situation remains unchanged and the theory stays nonunitary despite that the structure of the graviton propagator is greatly changed. Thus, the Pauli-Fierz mass term is not allowed to coexist with mass-generating higher-derivative terms in the new massive gravity.

Nakasone, Masashi; Oda, Ichiro [Department of Physics, Faculty of Science, University of the Ryukyus, Nishihara, Okinawa 903-0213 (Japan)

2009-05-15T23:59:59.000Z

164

Large Dimension Homomorphism Spaces Between Specht Modules for Symmetric Groups  

E-Print Network (OSTI)

Let $F$ be a field of characteristic $p$. We show that $\\Hom_{F\\Sigma_n}(S^\\lambda, S^\\mu)$ can have arbitrarily large dimension as $n$ and $p$ grow, where $S^\\lambda$ and $S^\\mu$ are Specht modules for the symmetric group $\\Sigma_n$. Similar results hold for the Weyl modules of the general linear group. Every previously computed example has been at most one-dimensional, with the exception of Specht modules over a field of characteristic two. The proof uses the work of Chuang and Tan, providing detailed information about the radical series of Weyl modules in Rouquier blocks.

Dodge, Craig J

2011-01-01T23:59:59.000Z

165

Radion stabilization from the vacuum on flat extra dimensions  

Science Conference Proceedings (OSTI)

Volume stabilization in models with flat extra dimensions could follow from vacuum energy residing in the bulk when translational invariance is spontaneously broken. We study a simple toy model that exemplifies this mechanism which considers a massive scalar field with nontrivial boundary conditions at the end points of the compact space, and includes contributions from brane and bulk cosmological constants. We perform our analysis in the conformal frame where the radion field, associated with volume variations, is defined, and present a general strategy for building stabilization potentials out of those ingredients. We also provide working examples for the interval and the T{sup n}/Z{sub 2} orbifold configuration.

Santos, Eli [Departamento de Fisica, Universidad Autonoma Metropolitana, Apartado Postal 55-534, C. P. 09340 Mexico, D.F. (Mexico); Secretaria Academica de Fisica y Matematicas, Fac. de Ingenieria, Universidad Autonoma de Chiapas, Calle 4a. Oriente, Norte 1428, 29000 Tuxtla Gutierrez, Chiapas (Mexico); Perez-Lorenzana, A. [Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del I.P.N., Apartado Postal 14-740, 07000, Mexico, D.F. (Mexico); Pimentel, Luis O. [Departamento de Fisica, Universidad Autonoma Metropolitana, Apartado Postal 55-534, C. P. 09340 Mexico, D.F. (Mexico)

2008-01-15T23:59:59.000Z

166

Near field optical probe for critical dimension measurements  

DOE Patents (OSTI)

A resonant planar optical waveguide probe for measuring critical dimensions on an object in the range of 100 nm and below is disclosed. The optical waveguide includes a central resonant cavity flanked by Bragg reflector layers with input and output means at either end. Light is supplied by a narrow bandwidth laser source. Light resonating in the cavity creates an evanescent electrical field. The object with the structures to be measured is translated past the resonant cavity. The refractive index contrasts presented by the structures perturb the field and cause variations in the intensity of the light in the cavity. The topography of the structures is determined from these variations. 8 figs.

Stallard, B.R.; Kaushik, S.

1999-05-18T23:59:59.000Z

167

Search for universal extra dimensions in ppbar collisions  

Science Conference Proceedings (OSTI)

We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of 7.3 fb{sup -1}, collected by the D0 detector at a p{bar p} center of mass energy of 1.96 TeV. The decay chain of KK particles can lead to a final state with two muons of the same charge. This signature is used to set a lower limit on the compactification scale of R{sup -1} > 260 GeV in a minimal UED model.

Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; /Oklahoma U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, Mark Raymond; /Illinois U., Chicago; Adams, Todd; /Florida State U.; Alexeev, Guennadi D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Augustana Coll., Sioux Falls; Alverson, George O.; /Northeastern U.; Aoki, Masato; /Fermilab; Askew, Andrew Warren; /Florida State U. /Stockholm U.

2011-12-01T23:59:59.000Z

168

European CommissionModernisation of Higher Education in Europe: Funding and the Social Dimension  

E-Print Network (OSTI)

Available in English (Modernisation of Higher Education in Europe 2011: Funding and the Social Dimension), French (La modernisation de l'enseignement suprieur en Europe 2011: financement et dimension sociale) and German (Modernisierung der Hochschulbildung in Europa: Finanzierung und soziale Dimension). ISBN 978-92-9201-205-2 doi:10.2797/67665 This document is also available on the Internet

Cation In Europe

2011-01-01T23:59:59.000Z

169

Realization of stripes and slabs in two and three dimensions  

E-Print Network (OSTI)

We consider Ising models in two and three dimensions with nearest neighbor ferromagnetic interactions and long range, power law decaying, antiferromagnetic interactions. If the strength of the ferromagnetic coupling J is larger than a critical value J_c, then the ground state is homogeneous and ferromagnetic. As the critical value is approached from smaller values of J, it is believed that the ground state consists of a periodic array of stripes (d=2) or slabs (d=3), all of the same size and alternating magnetization. Here we prove rigorously that the ground state energy per site converges to that of the optimal periodic striped/slabbed state, in the limit that J tends to the ferromagnetic transition point. While this theorem does not prove rigorously that the ground state is precisely striped/slabbed, it does prove that in any suitably large box the ground state is striped/slabbed with high probability.

Alessandro Giuliani; Elliott H. Lieb; Robert Seiringer

2013-05-23T23:59:59.000Z

170

Fermi gases in one dimension: From Bethe Ansatz to experiments  

E-Print Network (OSTI)

This article reviews theoretical and experimental developments for one-dimensional Fermi gases. Specifically, the experimentally realized two-component delta-function interacting Fermi gas -- the Gaudin-Yang model -- and its generalisations to multi-component Fermi systems with larger spin symmetries. The exact results obtained for Bethe ansatz integrable models of this kind enable the study of the nature and microscopic origin of a wide range of quantum many-body phenomena driven by spin population imbalance, dynamical interactions and magnetic fields. This physics includes Bardeen-Cooper-Schrieffer-like pairing, Tomonaga-Luttinger liquids, spin-charge separation, Fulde-Ferrel-Larkin-Ovchinnikov-like pair correlations, quantum criticality and scaling, polarons and the few-body physics of the trimer state (trions). The fascinating interplay between exactly solved models and experimental developments in one dimension promises to yield further insight into the exciting and fundamental physics of interacting Fermi systems.

Xi-Wen Guan; Murray T. Batchelor; Chaohong Lee

2013-01-28T23:59:59.000Z

171

Hyperscaling violation for scalar black branes in arbitrary dimensions  

E-Print Network (OSTI)

We extend to black branes (BB) in arbitrary dimensions the results of Ref. [1] about hyperscaling violation and phase transition for scalar black 2-branes. We derive the analytic form of the (d+1)-dimensional scalar soliton interpolating between a conformal invariant AdS vacuum in the infrared and a scale covariant metric in the ultraviolet. We show that the thermodynamical system undergoes a phase transition between Schwarzschild-AdS and a scalar-dressed BB. We calculate the critical exponent and the hyperscaling violation parameter in the two phases. We show that our scalar BB solutions generically emerge as compactifications of p-brane solutions of supergravity theories. We also derive the short distance form of the correlators for the scalar operators corresponding to an UV exponential potential supporting our black brane solution. We show that also for negative values of the hyperscaling violation parameter these correlators have a short distance power-law behavior.

Mariano Cadoni; Matteo Serra

2012-09-20T23:59:59.000Z

172

Hausdorff dimension of quark trajectories from SCSB and confinement  

Science Conference Proceedings (OSTI)

The quark condensate is calculated using the effective-action formalism, by imposing an ansatz for the Wilson loop, which interpolates between the area-law for large loops and the area-squared law for small loops. For 3 colors and 2 light flavors, a lower bound of 460 MeV for the constituent quark mass is found to be accessible, provided an effective scale-dependent string tension of a light quark falls off linearly with the Schwinger proper time. This behavior of the effective string tension yields the Hausdorff dimension of a light-quark trajectory equal to 4, which shows that these trajectories are similar to branched polymers. A gluonic chain based on such trajectories provides an example of a model describing weak first-order deconfinement phase transition, which takes place in SU(3) Yang-Mills theory.

Antonov, D.; Ribeiro, J. E. F. T. [Departamento de Fisica and Centro de Fisica das Interaccoes Fundamentais, Instituto Superior Tecnico, UT Lisboa, Av. Rovisco Pais, 1049-001 Lisboa (Portugal)

2011-05-23T23:59:59.000Z

173

Effects of Extra Dimensions on Unitarity and Higgs Boson Mass  

E-Print Network (OSTI)

We study the unitarity constraint on the two body Higgs boson elastic scattering in the presence of extra dimensions. The contributions from exchange of spin-2 and spin-0 Kaluza-Klein states can have large effect on the partial wave amplitude. Unitarity condition restrict the maximal allowed value for the ratio r of the center of mass energy to the gravity scale to be less than one. Although the constraint on the standard Higgs boson mass for r of order one is considerably relaxed, for small r the constraint is similar to that in the Standard Model. The resulting bound on the Higgs boson mass is not dramatically altered if perturbative calculations are required to be valid up to the maximal allowed value for r.

Xiao-gang He

1999-01-01T23:59:59.000Z

174

A Novel Superstring in Four Dimensions and Grand Unification  

E-Print Network (OSTI)

A string in four dimensions is constructed by supplementing it with forty four Majorana fermions. The central charge is 26. The fermions are grouped in such a way that the resulting action is supersymmetric. The energy momentum and current generators satisfy the super-Virasoro algebra. The tachyonic ground state decouples from the physical states. GSO projections are necessary for proving modular invariance. Space-time supersymmetry provides reasons to discard the tachyons and is substantiated for modes of zero mass. The symmetry group of the model descends to the low energy standard model group $SU (3) \\times SU_L (2) \\times U_Y (1)$ through the Pati-Salam group. Left right symmetry is broken spontaneously and the mass of the tau neutrino is calculated to be about 1/25 electron volt.

B. B. Deo

2000-02-26T23:59:59.000Z

175

Nonlinear Grassmann Sigma Models in Any Dimension and An Infinite Number of Conserved Currents  

E-Print Network (OSTI)

We first consider nonlinear Grassmann sigma models in any dimension and next construct their submodels. For these models we construct an infinite number of nontrivial conserved currents. Our result is independent of time-space dimensions and, therfore, is a full generalization of that of authors (Alvarez, Ferreira and Guillen). Our result also suggests that our method may be applied to other nonlinear sigma models such as chiral models, $G/H$ sigma models in any dimension.

Kazuyuki Fujii; Yasushi Homma; Tatsuo Suzuki

1998-06-11T23:59:59.000Z

176

DIMENSION STABILIZED FIXED PHOTOGRAPHIC TYPE EMULSION AND A METHOD FOR PRODUCING SAME  

DOE Patents (OSTI)

A process is given for stabilizing the dimensions of fixed gelatin-base photographic type emulsions containing silver halide, and particularly to such emulsions containing large amounts of silver chloride for use as nuclear track emulsions, so that the dimensions of the final product are the same as or in a predetermined fixed ratio to the dimensions of the emulsions prior to exposure. The process comprises contacting an exposed, fixed emulsion with a solution of wood rosin dissolved in ethyl alcohol for times corresponding to the dimensions desired, and thereafter permitting the alcohol to evaporate. (AEC)

Gilbert, F.C.

1962-03-13T23:59:59.000Z

177

Three loop MSbar transversity operator anomalous dimensions for fixed moment n <= 8  

E-Print Network (OSTI)

We compute the anomalous dimensions of the transversity operator at three loops in the MSbar scheme for fixed moment n where n n <= 7.

J. A. Gracey

2006-11-07T23:59:59.000Z

178

String-Inspired Chern-Simons Modified Gravity In 4-Dimensions  

E-Print Network (OSTI)

Chern-Simons modified gravity models in 4-dimensions are shown to be special cases of low energy effective string models to first order in the string constant.

Adak, M

2008-01-01T23:59:59.000Z

179

Mechanical and Hydraulic Press Brakes  

Science Conference Proceedings (OSTI)

...drives, with mechanical linkages from motor to flywheel to clutch to gears to crankshaft to crank arm to ram (Fig. 4). They all have one thing in common: a crankshaft action that converts rotary motion into straight, reciprocating motion (Fig. 5). During a stroke cycle, the crank arm drives the ram down...

180

Brake System Modeling and Control  

E-Print Network (OSTI)

of 3447 kPa Upper Left: Volts vs. Angular Position, showingone cycle. Lower Right: Volts vs. Position at several brakewith a magnitude of several volts. The INA118, a precision

Hedrick, J. K.; Uchanski, M.

2001-01-01T23:59:59.000Z

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


181

Dimensions of Usability: Cougaar, Aglets and Adaptive Agent Architecture (AAA)  

Science Conference Proceedings (OSTI)

Research and development organizations are constantly evaluating new technologies in order to implement the next generation of advanced applications. At Pacific Northwest National Laboratory, agent technologies are perceived as an approach that can provide a competitive advantage in the construction of highly sophisticated software systems in a range of application areas. An important factor in selecting a successful agent architecture is the level of support it provides the developer in respect to developer support, examples of use, integration into current workflow and community support. Without such assistance, the developer must invest more effort into learning instead of applying the technology. Like many other applied research organizations, our staff are not dedicated to a single project and must acquire new skills as required, underlining the importance of being able to quickly become proficient. A project was instigated to evaluate three candidate agent toolkits across the dimensions of support they provide. This paper reports on the outcomes of this evaluation and provides insights into the agent technologies evaluated.

Haack, Jereme N.; Cowell, Andrew J.; Gorton, Ian

2004-06-20T23:59:59.000Z

182

Higgs phenomenology in warped extra dimensions with a fourth generation  

Science Conference Proceedings (OSTI)

We study a warped extra-dimension scenario where the standard model fields lie in the bulk, with the addition of a fourth family of fermions. We concentrate on the flavor structure of the Higgs couplings with fermions in the flavor anarchy ansatz. Even without a fourth family, these couplings will be generically misaligned with respect to the standard model fermion mass matrices. The presence of the fourth family typically enhances the misalignment effects and we show that one should expect them to be highly nonsymmetrical in the (34) intergenerational mixing. The radiative corrections from the new fermions and their flavor-violating couplings to the Higgs affect negligibly known experimental precision measurements such as the oblique parameters and Z{yields}bb or Z{yields}{mu}{sup +}{mu}{sup -}. On the other hand, {Delta}F=1, 2 processes, mediated by tree-level Higgs exchange, as well as radiative corrections to b{yields}s{gamma} and {mu}{yields}e{gamma} put some generic pressure on the allowed size of the flavor-violating couplings. But more importantly, these couplings will alter the Higgs decay patterns as well as those of the new fermions, and produce very interesting new signals associated to Higgs phenomenology in high energy colliders. These signals might become very important indirect signals for these type of models as they would be present even when the KK mass scale is high and no heavy KK particle is discovered.

Frank, Mariana; Korutlu, Beste; Toharia, Manuel [Department of Physics, Concordia University, 7141 Sherbrooke St. West, Montreal Quebec, H4B 1R6 (Canada)

2011-10-01T23:59:59.000Z

183

Thermodynamics of SU(3) Gauge Theory in 2 + 1 Dimensions  

E-Print Network (OSTI)

The pressure, and the energy and entropy densities are determined for the SU(3) gauge theory in $2 + 1$ dimensions from lattice Monte Carlo calculations in the interval $0.6 \\leq T/T_c \\leq 15$. The finite temperature lattices simulated have temporal extent $N_\\tau = 2, 4, 6$ and 8, and spatial volumes $N_S^2$ such that the aspect ratio is $N_S/N_\\tau = 8$. To obtain the thermodynamical quantities, we calculate the averages of the temporal plaquettes $P_\\tau$ and the spatial plaquettes $P_S$ on these lattices. We also need the zero temperature averages of the plaquettes $P_0$, calculated on symmetric lattices with $N_\\tau = N_S$. We discuss in detail the finite size ($N_S$-dependent) effects. These disappear exponentially. For the zero temperature lattices we find that the coefficient of $N_S$ in the exponent is of the order of the glueball mass. On the finite temperature lattices it lies between the two lowest screening masses. For the aspect ratio equal to eight, the systematic errors coming from the finite size effects are much smaller than our statistical errors. We argue that in the continuum limit, at high enough temperature, the pressure can be parametrized by the very simple formula $p=a-bT_c/T$ where $a$ and $b$ are two constants. Using the thermodynamical identities for a large homogeneous system, this parametrization then determines the other thermodynamical variables in the same temperature range.

P. Bialas; L. Daniel; A. Morel; B. Petersson

2008-07-07T23:59:59.000Z

184

Self-accelerated brane Universe with warped extra dimension  

E-Print Network (OSTI)

We propose a cosmological model which exhibits the phenomenon of self-acceleration: the Universe is attracted to the phase of accelerated expansion at late times even in the absence of the cosmological constant. The self-acceleration is inevitable in the sense that it cannot be neutralized by any negative explicit cosmological constant. The model is formulated in the framework of brane-world theories with a warped extra dimension. The key ingredient of the model is the brane-bulk energy transfer which is carried by bulk vector fields with a sigma-model-like boundary condition on the brane. We explicitly find the 5-dimensional metric corresponding to the late-time de Sitter expansion on the brane; this metric describes an AdS_5 black hole with growing mass. The present value of the Hubble parameter implies the scale of new physics of order 1 TeV, where the proposed model has to be replaced by putative UV-completion. The mechanism leading to the self-acceleration has AdS/CFT interpretation as occurring due to specific dynamics of conformal matter interacting with external "electric" fields. The Universe expansion history predicted by the model is distinguishable from the standard LambdaCDM cosmology.

D. S. Gorbunov; S. M. Sibiryakov

2008-04-14T23:59:59.000Z

185

Extra Dimensions: 3D and Time in PDF Documentation  

Science Conference Proceedings (OSTI)

High energy physics is replete with multi-dimensional information which is often poorly represented by the two dimensions of presentation slides and print media. Past efforts to disseminate such information to a wider audience have failed for a number of reasons, including a lack of standards which are easy to implement and have broad support. Adobe's Portable Document Format (PDF) has in recent years become the de facto standard for secure, dependable electronic information exchange. It has done so by creating an open format, providing support for multiple platforms and being reliable and extensible. By providing support for the ECMA standard Universal 3D (U3D) file format in its free Adobe Reader software, Adobe has made it easy to distribute and interact with 3D content. By providing support for scripting and animation, temporal data can also be easily distributed to a wide audience. In this talk, we present examples of HEP applications which take advantage of this functionality. We demonstrate how 3D detector elements can be documented, using either CAD drawings or other sources such as GEANT visualizations as input. Using this technique, higher dimensional data, such as LEGO plots or time-dependent information can be included in PDF files. In principle, a complete event display, with full interactivity, can be incorporated into a PDF file. This would allow the end user not only to customize the view and representation of the data, but to access the underlying data itself.

Graf, Norman A.; /SLAC

2011-11-10T23:59:59.000Z

186

Extra Dimensions: 3D and Time in PDF Documentation  

SciTech Connect

Experimental science is replete with multi-dimensional information which is often poorly represented by the two dimensions of presentation slides and print media. Past efforts to disseminate such information to a wider audience have failed for a number of reasons, including a lack of standards which are easy to implement and have broad support. Adobe's Portable Document Format (PDF) has in recent years become the de facto standard for secure, dependable electronic information exchange. It has done so by creating an open format, providing support for multiple platforms and being reliable and extensible. By providing support for the ECMA standard Universal 3D (U3D) file format in its free Adobe Reader software, Adobe has made it easy to distribute and interact with 3D content. By providing support for scripting and animation, temporal data can also be easily distributed to a wide, non-technical audience. We discuss how the field of radiation imaging could benefit from incorporating full 3D information about not only the detectors, but also the results of the experimental analyses, in its electronic publications. In this article, we present examples drawn from high-energy physics, mathematics and molecular biology which take advantage of this functionality. We demonstrate how 3D detector elements can be documented, using either CAD drawings or other sources such as GEANT visualizations as input.

Graf, N.A.; /SLAC

2012-04-11T23:59:59.000Z

187

Global Fits of the Minimal Universal Extra Dimensions Scenario  

SciTech Connect

In theories with Universal Extra-Dimensions (UED), the {gamma}{sub 1} particle, first excited state of the hypercharge gauge boson, provides an excellent Dark Matter (DM) candidate. Here we use a modified version of the SuperBayeS code to perform a Bayesian analysis of the minimal UED scenario, in order to assess its detectability at accelerators and with DM experiments. We derive in particular the most probable range of mass and scattering cross sections off nucleons, keeping into account cosmological and electroweak precision constraints. The consequences for the detectability of the {gamma}{sub 1} with direct and indirect experiments are dramatic. The spin-independent cross section probability distribution peaks at {approx} 10{sup -11} pb, i.e. below the sensitivity of ton-scale experiments. The spin-dependent cross-section drives the predicted neutrino flux from the center of the Sun below the reach of present and upcoming experiments. The only strategy that remains open appears to be direct detection with ton-scale experiments sensitive to spin-dependent cross-sections. On the other hand, the LHC with 1 fb{sup -1} of data should be able to probe the current best-fit UED parameters.

Bertone, Gianfranco; /Zurich U. /Paris, Inst. Astrophys.; Kong, Kyoungchul; /SLAC /Kansas U.; de Austri, Roberto Ruiz; /Valencia U., IFIC; Trotta, Roberto; /Imperial Coll., London

2012-06-22T23:59:59.000Z

188

Human dimensions in cyber operations research and development priorities.  

SciTech Connect

Within cyber security, the human element represents one of the greatest untapped opportunities for increasing the effectiveness of network defenses. However, there has been little research to understand the human dimension in cyber operations. To better understand the needs and priorities for research and development to address these issues, a workshop was conducted August 28-29, 2012 in Washington DC. A synthesis was developed that captured the key issues and associated research questions. Research and development needs were identified that fell into three parallel paths: (1) human factors analysis and scientific studies to establish foundational knowledge concerning factors underlying the performance of cyber defenders; (2) development of models that capture key processes that mediate interactions between defenders, users, adversaries and the public; and (3) development of a multi-purpose test environment for conducting controlled experiments that enables systems and human performance measurement. These research and development investments would transform cyber operations from an art to a science, enabling systems solutions to be engineered to address a range of situations. Organizations would be able to move beyond the current state where key decisions (e.g. personnel assignment) are made on a largely ad hoc basis to a state in which there exist institutionalized processes for assuring the right people are doing the right jobs in the right way. These developments lay the groundwork for emergence of a professional class of cyber defenders with defined roles and career progressions, with higher levels of personnel commitment and retention. Finally, the operational impact would be evident in improved performance, accompanied by a shift to a more proactive response in which defenders have the capacity to exert greater control over the cyber battlespace.

Forsythe, James Chris; Silva, Austin Ray; Stevens-Adams, Susan Marie; Bradshaw, Jeffrey [Institute for Human and Machine Cognition] Institute for Human and Machine Cognition

2012-11-01T23:59:59.000Z

189

Stable Calabi--Yau dimension of self-injective algebras of finite type.  

E-Print Network (OSTI)

We give an equivalent definition of the stable Calabi--Yau dimension in terms of bimodule syzygies and so-called stably inner automorphisms. Using it, we complete the computation of the stable Calabi--Yau dimensions of the self-injective algebras of finite representation type which was started by K. Erdmann, A. Skowro?ski, J. Bia\\lkowski and A. Dugas.

S. O. Ivanov; Y. V. Volkov

190

Oriented matroid theory and loop quantum gravity in (2+2) and eight dimensions  

E-Print Network (OSTI)

We establish a connection between oriented matroid theory and loop quantum gravity in (2+2) (two time and two space dimensions) and 8-dimensions. We start by observing that supersymmetry implies that the structure constants of the real numbers, complex numbers, quaternions and octonions can be identified with the chirotope concept. This means, among other things, that normed divisions algebras, which are only possible in 1,2, 4 or 8-dimensions, are linked to oriented matroid theory. Therefore, we argue that the possibility for developing loop quantum gravity in 8-dimensions must be taken as important alternative. Moreover, we show that in 4-dimensions, loop quantum gravity theories in the (1+3) or (0+4) signatures are not the only possibilities. In fact, we show that loop quantum gravity associated with the (2+2)-signature may also be an interesting physical structure.

J. A. Nieto

2010-03-24T23:59:59.000Z

191

Hawking Radiation from Squashed Kaluza-Klein Black Holes -- A Window to Extra Dimensions --  

E-Print Network (OSTI)

We explore the obsevability of extra dimensions through 5-dimensional squashed Kaluza-Klein black holes residing in the Kaluza-Klein spacetime. With the expectation that the Hawking radiation reflects the 5-dimensional nature of the squashed horizon, we study the Hawking radiation of a scalar field in the squashed black hole background. As a result, we show that the luminosity of Hawking radiation tells us the size of the extra dimension, namely, the squashed Kaluza-Klein black holes open a window to extra dimensions.

Hideki Ishihara; Jiro Soda

2007-02-22T23:59:59.000Z

192

The dimensions of the policy debate over transportation energy: The case of hydrogen in the United States  

E-Print Network (OSTI)

from natural gas with sequestration re?ected in this policy-policy- preference dimension. The option of natural gas withpolicy dimension. The positive loading on the item Natural gas

Collantes, Gustavo O

2008-01-01T23:59:59.000Z

193

Rajesh Maingi adds a new strategic dimension to fusion and plasma...  

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

Rajesh Maingi adds a new strategic dimension to fusion and plasma physics research By John Greenwald March 14, 2013 Tweet Widget Facebook Like Google Plus One Rajesh Maingi (Photo...

194

Searches for extra dimensions in the CMS experiment at the Large Hadron Collider (LHC)  

Science Conference Proceedings (OSTI)

Predictions of multidimensonal theories are analyzed, and the possibility of detecting signals from extra spatial dimensions in the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) is studied.

Shmatov, S. V., E-mail: shmatov@cern.ch [Joint Institute for Nuclear Research (Russian Federation); Collaboration: CMS Collaboration

2011-03-15T23:59:59.000Z

195

On the Effects of Cumulus Dimensions on Longwave Irradiance and Heating Rate Calculations  

Science Conference Proceedings (OSTI)

A model of a cumulus cloud field, parameterized as right circular cylinders, has been used to estimate the uncertainties in longwave radiation calculations of irradiances and heating rates caused by neglecting the dimensions of the clouds. The ...

Robert G. Ellingson

1982-04-01T23:59:59.000Z

196

Scattering of Internal Waves at Finite Topography in Two Dimensions. Part I: Theory and Case Studies  

Science Conference Proceedings (OSTI)

The scattering of internal gravity waves at finite topography in two dimensions is studied theoretically and numerically for a finite depth ocean. A formal solution is derived using a mapping function based on ray tracing. The solution satisfies ...

Peter Mller; Xianbing Liu

2000-03-01T23:59:59.000Z

197

Magnetic and Electric Dipole Constraints on Extra Dimensions and Magnetic Fluxes  

E-Print Network (OSTI)

The propagation of charged particles and gauge fields in a compact extra dimension contributes to $g-2$ of the charged particles. In addition, a magnetic flux threading this extra dimension generates an electric dipole moment for these particles. We present constraints on the compactification size and on the possible magnetic flux imposed by the comparison of data and theory of the magnetic moment of the muon and from limits on the electric dipole moments of the muon, neutron and electron.

Aaron J. Roy; Myron Bander

2008-05-10T23:59:59.000Z

198

Apparatus and method for tracking a molecule or particle in three dimensions  

SciTech Connect

An apparatus and method were used to track the movement of fluorescent particles in three dimensions. Control software was used with the apparatus to implement a tracking algorithm for tracking the motion of the individual particles in glycerol/water mixtures. Monte Carlo simulations suggest that the tracking algorithms in combination with the apparatus may be used for tracking the motion of single fluorescent or fluorescently labeled biomolecules in three dimensions.

Werner, James H. (Los Alamos, NM); Goodwin, Peter M. (Los Alamos, NM); Lessard, Guillaume (Santa Fe, NM)

2009-03-03T23:59:59.000Z

199

Fractal dimension and time factors of sawdust pattern formation in sawmills  

Science Conference Proceedings (OSTI)

This paper presents the application of fractal theory, especially fractal dimension to the formation of sawdust particles during operation with four detailed cases, which helps us to understand the distribution of the sawdust particles inhaled by sawmill ... Keywords: aggregation, chaotic dynamics, fractal dimension, fractal theory, occupational health, particle inhalation, pattern formation, random walk, sawdust particles, sawdust patterns, sawmill workers, sawmills, small scale industries, time factors, toxicity, woodworking problems

Tajudeen A. O. Salau; S. A. Oke

2010-03-01T23:59:59.000Z

200

Rotating charged hairy black hole in (2+1) dimensions and particle acceleration  

E-Print Network (OSTI)

In this paper we construct rotating charged hairy black hole in (2+1) dimensions for infinitesimal black hole charge and rotation parameters. Then we consider this black hole as particle accelerator and calculate the center-of-mass energy of two colliding test particles near the rotating charged hairy black hole in (2+1) dimensions. As we expected, the center-of-mass energy has infinite value.

Sadeghi, J; Farahani, H

2013-01-01T23:59:59.000Z

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


201

Rotating charged hairy black hole in (2+1) dimensions and particle acceleration  

E-Print Network (OSTI)

In this paper we construct rotating charged hairy black hole in (2+1) dimensions for infinitesimal black hole charge and rotation parameters. Then we consider this black hole as particle accelerator and calculate the center-of-mass energy of two colliding test particles near the rotating charged hairy black hole in (2+1) dimensions. As we expected, the center-of-mass energy has infinite value.

J. Sadeghi; B. Pourhassan; H. Farahani

2013-10-26T23:59:59.000Z

202

Reactor Searches for Neutrino Magnetic Moment as a Probe of Extra Dimensions  

E-Print Network (OSTI)

We present calculations of the magnetic moment contribution to neutrino electron scattering in large extra dimension brane-bulk models (LED) with three bulk neutrinos. We discuss the cases with two and three large extra dimensions of sizes $R$. The calculations are done using reactor flux from Uranium, $^{235}U$ as the neutrino source. We find that if the electron neutrino mass is chosen to be in the range of one eV, the differential cross section for $\\bar{\

Mohapatra, Rabindra N; Yu, Haibo; Ng, Siew-Phang; Yu, Haibo

2004-01-01T23:59:59.000Z

203

Reactor Searches for Neutrino Magnetic Moment as a Probe of Extra Dimensions  

E-Print Network (OSTI)

We present calculations of the magnetic moment contribution to neutrino electron scattering in large extra dimension brane-bulk models (LED) with three bulk neutrinos. We discuss the cases with two and three large extra dimensions of sizes $R$. The calculations are done using reactor flux from Uranium, $^{235}U$ as the neutrino source. We find that if the electron neutrino mass is chosen to be in the range of one eV, the differential cross section for $\\bar{\

R. N. Mohapatra; Siew-Phang Ng; Haibo Yu

2004-04-29T23:59:59.000Z

204

Twistor transform in d dimensions and a unifying role for twistors  

SciTech Connect

Twistors in four dimensions d=4 have provided a convenient description of massless particles with any spin, and this led to remarkable computational techniques in Yang-Mills field theory. Recently it was shown that the same d=4 twistor provides also a unified description of an assortment of other particle dynamical systems, including special examples of massless or massive particles, relativistic or nonrelativistic, interacting or noninteracting, in flat space or curved spaces. In this paper, using 2T-physics as the primary theory, we derive the general twistor transform in d-dimensions that applies to all cases, and show that these more general twistor transforms provide d dimensional holographic images of an underlying phase space in flat spacetime in d+2 dimensions. Certain parameters, such as mass, parameters of spacetime metric, and some coupling constants, appear as moduli in the holographic image while projecting from d+2 dimensions to (d-1)+1 dimensions or to twistors. We also extend the concept of twistors to include the phase space of D-branes, and give the corresponding twistor transform. The unifying role for the same twistor that describes an assortment of dynamical systems persists in general, including D-branes. Except for a few special cases in low dimensions that exist in the literature, our twistors are new.

Bars, Itzhak [Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484 (United States); Picon, Moises [Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484 (United States); Departamento de Fisica Teorica, University of Valencia and IFIC (CSIC-UVEG), 46100-Burjasot (Valencia) (Spain)

2006-03-15T23:59:59.000Z

205

Scalar and fermionic vacuum currents in de Sitter spacetime with compact dimensions  

E-Print Network (OSTI)

Vacuum expectation values (VEVs) of the current densities for charged scalar and Dirac spinor fields are investigated in (D+1)-dimensional de Sitter (dS) spacetime with toroidally compactified spatial dimensions. Along compact dimensions we impose quasiperiodicity conditions with arbitrary phases. In addition, the presence of a classical constant gauge field is assumed. The VEVs of the charge density and of the components for the current density along noncompact dimensions vanish. The gauge field leads to Aharonov-Bohm-like oscillations of the components along compact dimensions as functions of the magnetic flux. For small values of the comoving length of a compact dimension, compared with the dS curvature scale, the current density is related to the corresponding current in the Minkowski spacetime by a conformal relation. For large values of the comoving length and for a scalar field, depending on the mass of the field, two different regimes are realized with the monotonic and oscillatory damping of the current density. For a massive spinor field, the decay of the current density is always oscillatory. In supersymmetric models on the background of Minkowski spacetime with equal number of scalar and fermionic degrees of freedom and with the same phases in the periodicity conditions, the total current density vanishes due to the cancellation between the scalar and fermionic parts. The background gravitational field modifies the current densities for scalar and fermionic fields in different ways and for massive fields there is no cancellation in the dS spacetime.

S. Bellucci; A. A. Saharian; H. A. Nersisyan

2013-02-07T23:59:59.000Z

206

DeWitt-Schwinger Renormalization and Vacuum Polarization in d Dimensions  

E-Print Network (OSTI)

Calculation of the vacuum polarization, $$, and expectation value of the stress tensor, $$, has seen a recent resurgence, notably for black hole spacetimes. To date, most calculations of this type have been done only in four dimensions. Extending these calculations to $d$ dimensions includes $d$-dimensional renormalization. Typically, the renormalizing terms are found from Christensen's covariant point splitting method for the DeWitt-Schwinger expansion. However, some manipulation is required to put the correct terms into a form that is compatible with problems of the vacuum polarization type. Here, after a review of the current state of affairs for $$ and $$ calculations and a thorough introduction to the method of calculating $$, a compact expression for the DeWitt-Schwinger renormalization terms suitable for use in even-dimensional spacetimes is derived. This formula should be useful for calculations of $$ and $$ in even dimensions, and the renormalization terms are shown explicitly for four and six dimensions. Furthermore, use of the finite terms of the DeWitt-Schwinger expansion as an approximation to $$ for certain spacetimes is discussed, with application to four and five dimensions.

Robert T. Thompson; Jos P. S. Lemos

2008-11-24T23:59:59.000Z

207

Fermionic and Bosonic Stabilizing Effects for Type I and Type II Dimension Bubbles  

E-Print Network (OSTI)

We consider two types of "dimension bubbles", which are viewed as 4d nontopological solitons that emerge from a 5d theory with a compact extra dimension. The size of the extra dimension varies rapidly within the domain wall of the soliton. We consider the cases of type I (II) bubbles where the size of the extra dimension inside the bubble is much larger (smaller) than outside. Type I bubbles with thin domain walls can be stabilized by the entrapment of various particle modes whose masses become much smaller inside than outside the bubble. This is demonstrated here for the cases of scalar bosons, fermions, and massive vector bosons, including both Kaluza-Klein zero modes and Kaluza-Klein excitation modes. Type II bubbles expel massive particle modes but both types can be stabilized by photons. Plasma filled bubbles containing a variety of massless or nearly massless radiation modes may exist as long-lived metastable states. Furthermore, in contrast to the case with a "gravitational bag", the metric for a fluid-filled dimension bubble does not exhibit a naked singularity at the bubble's center.

J. R. Morris

2004-05-21T23:59:59.000Z

208

Einstein's Dream of Unified Forces - extra dimensions | U.S. DOE Office  

Office of Science (SC) Website

Are there extra dimensions of space? Are there extra dimensions of space? The Tevatron .jpg file (220KB) At Fermilab's Tevatron, physicists study such exotic phenomena as extra dimensions, paving the way for scientific discoveries. The revolutionary concept of string theory is a bold realization of Einstein's dream of an ultimate explanation for everything from the tiniest quanta of particle physics to the cosmos itself. String theory unifies physics by producing all known forces and particles as different vibrations of a single substance called superstrings. String theory brings quantum consistency to physics with an elegant mathematical construct that appears to be unique. Do superstrings exist? The strings themselves are probably too tiny to observe directly, but string theory makes a number of testable predictions.

209

The d-bar approach to approximate inverse scattering at fixed energy in three dimensions  

E-Print Network (OSTI)

We develop the d-bar approach to inverse scattering at fixed energy in dimensions $d\\ge 3$ of [Beals, Coifman 1985] and [Henkin, Novikov 1987]. As a result we propose a stable method for nonlinear approximate finding a potential $v$ from its scattering amplitude $f$ at fixed energy $E>0$ in dimension $d=3$. In particular, in three dimensions we stably reconstruct n-times smooth potential $v$ with sufficient decay at infinity, $n>3$, from its scattering amplitude $f$ at fixed energy $E$ up to $O(E^{-(n-3-\\epsilon)/2})$ in the uniform norm as $E\\to +\\infty$ for any fixed arbitrary small $\\epsilon >0$ (that is with almost the same decay rate of the error for $E\\to +\\infty$ as in the linearized case near zero potential).

Roman Novikov

2005-05-10T23:59:59.000Z

210

Spherical collapse of a heat conducting fluid in higher dimensions without horizon  

E-Print Network (OSTI)

We consider a scenario where the interior spacetime,described by a heat conducting fluid sphere is matched to a Vaidya metric in higher dimensions.Interestingly we get a class of solutions, where following heat radiation the boundary surface collapses without the appearance of an event horizon at any stage and this happens with reasonable properties of matter field.The non-occurrence of a horizon is due to the fact that the rate of mass loss exactly counterbalanced by the fall of boundary radius.Evidently this poses a counter example to the so-called cosmic censorship hypothesis.Two explicit examples of this class of solutions are also given and it is observed that the rate of collapse is delayed with the introduction of extra dimensions.The work extends to higher dimensions our previous investigation in 4D.

A. banerjee; S. Chatterjee

2004-06-08T23:59:59.000Z

211

Spherical collapse of a heat conducting fluid in higher dimensions without horizon  

E-Print Network (OSTI)

We consider a scenario where the interior spacetime,described by a heat conducting fluid sphere is matched to a Vaidya metric in higher dimensions.Interestingly we get a class of solutions, where following heat radiation the boundary surface collapses without the appearance of an event horizon at any stage and this happens with reasonable properties of matter field.The non-occurrence of a horizon is due to the fact that the rate of mass loss exactly counterbalanced by the fall of boundary radius.Evidently this poses a counter example to the so-called cosmic censorship hypothesis.Two explicit examples of this class of solutions are also given and it is observed that the rate of collapse is delayed with the introduction of extra dimensions.The work extends to higher dimensions our previous investigation in 4D.

Banerjee, A

2004-01-01T23:59:59.000Z

212

The Ground State Energy of a Dilute Bose Gas in Dimension n >3  

E-Print Network (OSTI)

We consider a Bose gas in spatial dimension $n>3$ with a repulsive, radially symmetric two-body potential $V$. In the limit of low density $\\rho$, the ground state energy per particle in the thermodynamic limit is shown to be $(n-2)|\\mathbb S^{n-1}|a^{n-2}\\rho$, where $|\\mathbb S^{n-1}|$ denotes the surface measure of the unit sphere in $\\mathbb{R}^n$ and $a$ is the scattering length of $V$. Furthermore, for smooth and compactly supported two-body potentials, we derive upper bounds to the ground state energy with a correction term $(1+\\gamma)8\\pi^4a^6\\rho^2|\\ln(a^4\\rho)|$ in dimension $n=4$, where $0<\\gamma\\leq C\\|V\\|_{\\infty}^{1/2}\\|V\\|_1^{1/2}$, and a correction term which is $\\mathcal{O}(\\rho^2)$ in higher dimensions.

Anders Aaen

2014-01-23T23:59:59.000Z

213

Search for Large Extra Dimensions in the Diphoton Final State at the Large Hadron Collider  

E-Print Network (OSTI)

A search for large extra spatial dimensions via virtual-graviton exchange in the diphoton channel has been carried out with the CMS detector at the LHC. No excess of events above the standard model expectations is found using a data sample collected in proton-proton collisions at sqrt(s) = 7 TeV and corresponding to an integrated luminosity of 36 inverse picobarns. New lower limits on the effective Planck scale in the range of 1.6-2.3 TeV at the 95% confidence level are set, providing the most restrictive bounds to date on models with more than two large extra dimensions.

CMS Collaboration

2011-03-22T23:59:59.000Z

214

The Linet-Tian solution with a positive cosmological constant in four and higher dimensions  

E-Print Network (OSTI)

The static, apparently cylindrically symmetric vacuum solution of Linet and Tian for the case of a positive cosmological constant $\\Lambda$ is shown to have toroidal symmetry and, besides $\\Lambda$, to include three arbitrary parameters. It possesses two curvature singularities, of which one can be removed by matching it across a toroidal surface to a corresponding region of the dust-filled Einstein static universe. In four dimensions, this clarifies the geometrical properties, the coordinate ranges and the meaning of the parameters in this solution. Some other properties and limiting cases of this space-time are described. Its generalisation to any higher number of dimensions is also explicitly given.

J. B. Griffiths; J. Podolsky

2010-02-22T23:59:59.000Z

215

Conformal Null Infinity Does Not Exist for Radiating Solutions in Odd Spacetime Dimensions  

E-Print Network (OSTI)

We show that for general relativity in odd spacetime dimensions greater than 4, all components of the unphysical Weyl tensor for arbitrary smooth, compact spatial support perturbations of Minkowski spacetime fail to be smooth at null infinity at leading nonvanishing order. This implies that for nearly flat radiating spacetimes, the non-smoothness of the unphysical metric at null infinity manifests itself at the same order as it describes deviations from flatness of the physical metric. Therefore, in odd spacetime dimensions, it does not appear that conformal null infinity can be in any way useful for describing radiation.

Stefan Hollands; Robert M. Wald

2004-07-02T23:59:59.000Z

216

Credit derivatives : market dimensions, correlation with equity and implied option volatility, regression modeling and statistical price risk  

E-Print Network (OSTI)

This research thesis explores the market dimensions of credit derivatives including the prevalent product structures, leading participants, market applications and the issues confronting this relatively new product. We ...

Kureshy, Imran, A., 1965-

2004-01-01T23:59:59.000Z

217

Electrochemical detection of single molecules using abiotic nanopores having electrically tunable dimensions  

DOE Patents (OSTI)

A barrier structure for use in an electrochemical stochastic membrane sensor for single molecule detection. The sensor is based upon inorganic nanopores having electrically tunable dimensions. The inorganic nanopores are formed from inorganic materials and an electrically conductive polymer. Methods of making the barrier structure and sensing single molecules using the barrier structure are also described.

Sansinena, Jose-Maria (Los Alamos, NM); Redondo, Antonio (Los Alamos, NM); Olazabal, Virginia (Los Alamos, NM); Hoffbauer, Mark A. (Los Alamos, NM); Akhadov, Elshan A. (Los Alamos, NM)

2009-12-29T23:59:59.000Z

218

Statistical modeling of root geometrical dimensions of gas turbine blade in creep feed grinding process  

Science Conference Proceedings (OSTI)

Creep feed grinding is widely used in manufacturing suppe-ralloy materials. The main objectives of this research deal with the influences of major process parameters and their interactions of creep feed grinding process such as wheel speed, workpiece ... Keywords: analysis of variance, creep feed grinding, interactive effect, regression, root geometrical dimensions

A. R. Fazeli Nahrekhalaji

2010-04-01T23:59:59.000Z

219

Teaching databases in compliance with the European dimension of higher education: Best practices for better competences  

Science Conference Proceedings (OSTI)

The Convergence process in which European Union (EU) universities are at present involved supposes that these institutions not only have to re-structure their degree programmes, but also their teaching and learning methodologies. We study the impact ... Keywords: Databases, European convergence in higher education, European dimension of higher education

M. Mercedes Martnez-Gonzlez; Grald Duffing

2007-12-01T23:59:59.000Z

220

A computer program for fractal dimension (FRACEK) with application on type of mass movement characterization  

Science Conference Proceedings (OSTI)

The aim of this study is to develop a computer program (FRACEK) for fractal dimensions of amorphous areas, and to apply this program on various mass movements. FRACEK has been developed using Java technology with an object-oriented approach. The input ... Keywords: Debris flow, Fractal, JAVA, Mass movement, Rotational failure, Translational failure

Ebru Sezer

2010-03-01T23:59:59.000Z

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221

Nonlinear Sigma Models in (1+2)-Dimensions and An Infinite Number of Conserved Currents  

E-Print Network (OSTI)

We treat in this paper non-linear sigma models such as $CP^1$-model, $QP^1$-model and etc, in 1+2 dimensions. For submodels of such ones we definitely construct an infinite number of nontrivial conserved currents. Our result is a generalization of that of authors (Alvarez, Ferreira and Guillen).

Kazuyuki Fujii; Tatsuo Suzuki

1998-02-14T23:59:59.000Z

222

Nonlinear Sigma Models in (1+2)-Dimensions and an Infinite Number of Conserved Currents  

E-Print Network (OSTI)

We treat in this paper non-linear sigma models such as $CP^1$-model, $QP^1$-model and etc, in 1+2 dimensions. For submodels of such ones we definitely construct an infinite number of nontrivial conserved currents. Our result is a generalization of that of authors (Alvarez, Ferreira and Guillen).

Fujii, K; Fujii, Kazuyuki; Suzuki, Tatsuo

1998-01-01T23:59:59.000Z

223

Typical fault mode determination for rotor test rig based on correlation dimension and Kolmogorov entropy  

Science Conference Proceedings (OSTI)

This paper experimentally investigates the vibration faults of rotor, such as the unbalance, the loosening and the friction, using the rotor test rig. According to the theory of fractal and chaos, the vibration signal series are reconstructed. By the ... Keywords: Kolmogorov entropy, correlation dimension, fractal and chaos, vibration fault

Fengling Zhang; Yanting Ai; Fei Liu

2009-08-01T23:59:59.000Z

224

Energy Harvesting Enabled Wireless Sensor Networks: Energy Model and Battery Dimensioning  

E-Print Network (OSTI)

Energy Harvesting Enabled Wireless Sensor Networks: Energy Model and Battery Dimensioning Raul to energy require- ments. The Self-Powered WSN approach aims to extend the sensor node life by means of Energy Harvesting. How- ever, the low power density that these energy sources pro- vide compared

Cabellos-Aparicio, Albert

225

DIMENSION REDUCTION NUMERICAL CLOSURE METHOD FOR ADVECTION-DIFFUSION-REACTION SYSTEMS  

SciTech Connect

Many natural physical processes exhibit a multiscale behavior, that is the same processes allow different mathematical description on different scales. The microscale description is usually based on fundamental conservation laws that form a closed system of ordinary differential equations (ODEs) or partial differential equations (PDEs) but the numerical discretization of these equations may produce a system of ODEs with an enormous number of unknowns. Furthermore, a time integration of the microscale equations usually requires time steps that are smaller than the observation time by many orders of magnitude. A direct solution of these ODEs can be extremely expensive. This necessitates development of advanced algorithms for model (or dimension) reduction. Often, we are only interested in the average behavior of the system rather than the exact solution of the ODEs. Here we developed a novel dimension reduction method that gives an approximate solution of the ODEs and gives an accurate prediction of the average behavior. The method relies on a computational closure of averaged evolution balance equations. The computational closure is achieved via short bursts of microscale simulation. The dimension reduction model was used to simulate flow and transport with mixing controlled reactions and mineral precipitation. A pore-scale model was used as a microscale model. A good agreement between microscale simulations and the accelerated microscale simulations confirms the accuracy and computational efficiency of the dimension reduction model. The method significant accelerates microscale simulations, while providing accurate approximation of the solution and accurate prediction of the average behavior of the system.

Tartakovsky, Alexandre M.; Scheibe, Timothy D.

2011-11-30T23:59:59.000Z

226

Relationship between Coal Reservoir Permeability and Fractal Dimension and Its Significance  

Science Conference Proceedings (OSTI)

Permeability of coal reservoir is one of important parameters for coal bed methane (CBM) development. Because of strong heterogeneity of coal reservoir, ascertaining permeability distribution is critical to productivity prediction of CBM. Based on Darcy's ... Keywords: coalbed methane, coal reservoir, permeability, fractal dimension, correlation degree

Hongyu Guo; Xianbo Su; Daping Xia

2010-10-01T23:59:59.000Z

227

Electroweak Precision Measurements and Collider Probes of the Standard Model with Large Extra Dimensions  

SciTech Connect

The elementary particles of the Standard Model may live in more than 3+1 dimensions. We study the consequences of large compactified dimensions on scattering and decay observables at high-energy colliders. Our analysis includes global fits to electroweak precision data, indirect tests at high-energy electron-positron colliders (LEP2 and NLC), and direct probes of the Kaluza-Klein resonances at hadron colliders (Tevatron and LHC). The present limits depend sensitively on the Higgs sector, both the mass of the Higgs boson and how many dimensions it feels. If the Higgs boson is trapped on a 3+1 dimensional wall with the fermions, large Higgs masses (up to 500 GeV) and relatively light Kaluza-Klein mass scales (less than 4 TeV) can provide a good fit to precision data. That is, a light Higgs boson is not necessary to fit the electroweak precision data, as it is in the Standard Model. If the Higgs boson propagates in higher dimensions, precision data prefer a light Higgs boson (less than 260 GeV), and a higher compactification scale (greater than 3.8 TeV). Future colliders can probe much larger scales. For example, a 1.5 TeV electron-positron linear collider can indirectly discover Kaluza-Klein excitations up to 31 TeV if 500 fb{sup {minus}1} integrated luminosity is obtained.

Rizzo, Thomas G.

1999-06-03T23:59:59.000Z

228

Estimate for the size of the compactification radius of a one extra dimension universe  

SciTech Connect

In this work, we use the Casimir effect to probe the existence of one extra dimension. We begin by evaluating the Casimir pressure between two plates in a M{sup 4} x S{sup 1} manifold, and then use an appropriate statistical analysis in order to compare the theoretical expression with a recent experimental data and set bounds for the compactification radius.

Da Rosa, Felipe S [Los Alamos National Laboratory; Pascoal, F [DEPARTAMENTO DE FISICA; Oliveira, L F [CIDADE UNIV; Farina, C [INSTITUTO DE FISICA

2008-01-01T23:59:59.000Z

229

Single-Scan NMR Spectroscopy at Arbitrary Dimensions Yoav Shrot and Lucio Frydman*  

E-Print Network (OSTI)

Single-Scan NMR Spectroscopy at Arbitrary Dimensions Yoav Shrot and Lucio Frydman* Contribution resonance (NMR) provides one of the foremost analytical tools available to elucidate the structure a parametric incrementation of their values throughout independent experiments. Two-dimensional (2D) NMR

Frydman, Lucio

230

N-Dimensions, Parallel Realities, And Their Relations To Human Perception And Development  

Science Conference Proceedings (OSTI)

This paper delineates a new conceptualization of the integration of technology, psychology, medicine, and science, with an emphasis on quantum physics. The focus is on developing a new paradigm to comprehend the ultimate reality and its relation to the ... Keywords: human perception and development, neuroimaging, neuroplasticity, parallel dimensions and realities, superstring theory

Majid M. Naini; Joan F. Naini

2009-01-01T23:59:59.000Z

231

Universal dimensions of human mate preferences Todd K. Shackelford a,*, David P. Schmitt b  

E-Print Network (OSTI)

Universal dimensions of human mate preferences Todd K. Shackelford a,*, David P. Schmitt b , David (for reviews, see Buss, 1998, 2003; Gangestad & Simpson, 2000; Okami & Shackelford, 0191-8869/$ - see author. Tel.: +1 954 236 1179; fax: +1 954 236 1099. E-mail address: tshackel@fau.edu (T.K. Shackelford

Pillow, Jonathan

232

AdS collapse of a scalar field in higher dimensions  

Science Conference Proceedings (OSTI)

We show that the weakly turbulent instability of anti-de Sitter space, recently found in P. Bizon and A. Rostworowski, Phys. Rev. Lett. 107, 031102 (2011) for 3+1-dimensional spherically symmetric Einstein-massless-scalar field equations with negative cosmological constant, is present in all dimensions d+1 for d{>=}3.

Jalmuzna, Joanna [Institute of Mathematics, Jagiellonian University, Krakow (Poland); Rostworowski, Andrzej; Bizon, Piotr [Institute of Physics, Jagiellonian University, Krakow (Poland)

2011-10-15T23:59:59.000Z

233

Probe of SUSY and Extra Dimensions by the Brookhaven g-2 Experiment  

E-Print Network (OSTI)

A brief review is given of $a_{\\mu}=(g_{\\mu}-2)/2$ as a probe of supersymmetry and of extra dimensions. It is known since the early to mid nineteen eightees that the supersymmetric electro-weak correction to $a_{\\mu}$ can be as large or larger than the Standard Model electro-weak correction and thus any experiment that proposes to test the Standard Model electro-weak correction will also test the supersymmetric correction and constrain supersymmetric models. The new physics effect seen in the Brookhaven (BNL) experiment is consistent with these early expectations. Detailed analyses within the well motivated supergravity unified model show that the size of the observed difference ($a_{\\mu}^{exp}-a_{\\mu}^{SM}$) seen at Brookhaven implies upper limits on sparticle masses in a mass range accessible to the direct observation of these particles at the Large Hadron Collider. Further, analyses also show that the BNL data is favorable for the detection of supersymmeteric dark matter in direct dark matter searches. The effect of large extra dimensions on $a_{\\mu}$ is also discussed. It is shown that with the current limits on the size of extra dimensions, which imply that the inverse size of such dimensions lies in the TeV region, their effects on $a_{\\mu}$ relative to the supersymmetric contribution is small and thus extra dimensions do not produce a serious background to the supersymmetric contribution. It is concluded that the analysis of the additional data currently underway at Brookhaven as well as a reduction of the hadronic error will help pin down the scale of weak scale supersymmetry even more precisely.

Pran Nath

2001-05-09T23:59:59.000Z

234

Characterization of quantum correlations with local dimension constraints and its device-independent applications  

E-Print Network (OSTI)

The future progress of semi-device independent quantum information science depends crucially on our ability to bound the strength of the nonlocal correlations achievable with finite dimensional quantum resources. In this work, we characterize quantum nonlocality under local dimension constraints via a complete hierarchy of semidefinite programming relaxations. In the bipartite case, we find that the first level of the hierarchy returns non-trivial bounds in all cases considered, allowing to study nonlocality scenarios with four measurement settings on one side and twelve (12) on the other in a normal desktop. In the tripartite case, we apply the hierarchy to derive a Bell-type inequality that can only be violated when each of the three parties has local dimension greater than two, hence certifying three-dimensional tripartite entanglement in a device independent way. Finally, we show how the new method can be trivially modified to detect non-separable measurements in two-qubit scenarios.

Miguel Navascues; Gonzalo de la Torre; Tamas Vertesi

2013-08-15T23:59:59.000Z

235

Use of metallic glasses for fabrication of structures with submicron dimensions  

DOE Patents (OSTI)

Patterned structures of submicron dimension formed of supported or unsupported amorphous metals having submicron feature sizes characterized by etching behavior sufficient to allow delineation of sharp edges and smooth flat flanks, resistance to time-dependent dimensional changes caused by creep, flow, in-diffusion of unwanted impurities, out-diffusion of constituent atoms, void formation, grain growth or phase separation and resistance to phase transformations or compound formation.

Wiley, John D. (Madison, WI); Perepezko, John H. (Madison, WI)

1986-01-01T23:59:59.000Z

236

General Relativity in two dimensions: a Hamilton-Jacobi constraint analysis  

E-Print Network (OSTI)

We will analyze the constraint structure of the Einstein-Hilbert first-order action in two dimensions using the Hamilton-Jacobi approach. We will be able to find a set of involutive, as well as a set of non-involutive constraints. Using generalized brackets we will show how to assure integrability of the theory, to eliminate the set of non-involutive constraints, and to build the field equations.

M. C. Bertin; B. M. Pimentel; P. J. Pompeia

2009-11-11T23:59:59.000Z

237

Accelerating black hole in 2+1 dimensions and 3+1 black (st)ring  

E-Print Network (OSTI)

A C-metric type solution for general relativity with cosmological constant is presented in 2+1 dimensions. It is interpreted as a three-dimensional black hole accelerated by a strut. Positive values of the cosmological constant are admissible too. Some embeddings of this metric in the 3+1 space-time are considered: accelerating BTZ black string and a black ring where the gravitational force is sustained by the acceleration.

Astorino, Marco

2011-01-01T23:59:59.000Z

238

Light Sterile Neutrino from extra dimensions and Four-Neutrino Solutions to Neutrino Anomalies  

E-Print Network (OSTI)

We propose a four-neutrino model which can reconcile the existing data coming from underground experiments in terms of neutrino oscillations, together with the hint from the LSND experiment and a possible neutrino contribution to the hot dark matter of the Universe. It applies the idea that extra compact dimensions, probed only by gravity and possibly gauge-singlet fields, can lower the fundamental scales such as the Planck, string or unification scales. Our fourth light neutrino $\

A. Ioannisian; J. W. F. Valle

1999-11-14T23:59:59.000Z

239

The correlation dimension of rat hearts in an experimentally controlled environment  

Science Conference Proceedings (OSTI)

The electric response of several isolated rat hearts in a controlled environment was studied experimentally. The correlation dimension D 2 was estimated and was found to be between 4 and 6.5 when the response was nearly periodic. The variation of D 2 with the concentration of calcium was studied and a general trend of its increase with increasing concentration was found. Two types of ventricular fibrillation (VF) were observed

Guy Dori; Shmuel Fishman; S. A. Ben-Haim

2000-01-01T23:59:59.000Z

240

FAQ 15-What are the dimensions of a depleted uranium hexafluoride cylinder?  

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

are the dimensions of a depleted uranium hexafluoride cylinder? are the dimensions of a depleted uranium hexafluoride cylinder? What are the dimensions of a depleted uranium hexafluoride cylinder? Several different cylinder types are in use, although the vast majority of cylinders are designed to contain 14-tons (12-metric tons) of depleted UF6. The 14-ton-capacity cylinders are 12 ft (3.7 m) long by 4 ft (1.2 m) in diameter, with most having an initial wall thickness of 5/16 in. (0.79 cm) of steel. The cylinders have external stiffening rings that provide support. Lifting lugs for handling are attached to the stiffening rings. A small percentage of the cylinders have skirted ends (extensions of the cylinder walls past the rounded ends of the cylinder). Each cylinder has a single valve for filling and emptying located on one end at the 12 o'clock position. Similar, but slightly smaller, cylinders designed to contain 10 tons (9 metric tons) of depleted UF6 are also in use. Cylinders are manufactured in accordance with an American National Standards Institute standard (ANSI N14.1, American National Standard for Nuclear Materials - Uranium Hexafluoride - Packaging for Transport) as specified in 49 CFR 173.420, the federal regulations governing transport of depleted UF6.

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


241

Constraints on extra-dimensions and variable constants from cosmological gamma ray bursts  

E-Print Network (OSTI)

The observation of the time delay between the soft emission and the high-energy radiation from cosmological gamma ray bursts can be used as an important observational test of multi-dimensional physical theories. The main source of the time delay is the variation of the electromagnetic coupling, due to dimensional reduction, which induces an energy dependence of the speed of light. For photons with energies around 1 TeV, the time delay could range from a few seconds in the case of Kaluza-Klein models to a few days for models with large extra-dimensions. Based on these results we suggest that the detection of the 18-GeV photon $ \\sim $4500 s after the keV/MeV burst in GRB 940217 provides a strong evidence for the existence of extra-dimensions. The time delay of photons, if observed by the next generation of high energy detectors, like, for example, the SWIFT and GLAST satellite based detectors, or the VERITAS ground-based TeV gamma-ray instrument, could differentiate between the different models with extra-dimensions.

T. Harko; K. S. Cheng

2004-07-20T23:59:59.000Z

242

THE FRACTAL DIMENSION OF STAR-FORMING REGIONS AT DIFFERENT SPATIAL SCALES IN M33  

Science Conference Proceedings (OSTI)

We study the distribution of stars, H II regions, molecular gas, and individual giant molecular clouds in M33 over a wide range of spatial scales. The clustering strength of these components is systematically estimated through the fractal dimension. We find scale-free behavior at small spatial scales and a transition to a larger correlation dimension (consistent with a nearly uniform distribution) at larger scales. The transition region lies in the range {approx}500-1000 pc. This transition defines a characteristic size that separates the regime of small-scale turbulent motion from that of large-scale galactic dynamics. At small spatial scales, bright young stars and molecular gas are distributed with nearly the same three-dimensional fractal dimension (D {sub f,3D} {approx}< 1.9), whereas fainter stars and H II regions exhibit higher values, D {sub f,3D} {approx_equal} 2.2-2.5. Our results indicate that the interstellar medium in M33 is on average more fragmented and irregular than in the Milky Way.

Sanchez, Nestor; Alfaro, Emilio J. [Instituto de Astrofisica de AndalucIa, CSIC, Apdo. 3004, E-18080, Granada (Spain); Anez, Neyda [Departamento de Fisica, Facultad Experimental de Ciencias, Universidad del Zulia, Maracaibo (Venezuela, Bolivarian Republic of); Odekon, Mary Crone, E-mail: nestor@iaa.e [Department of Physics, Skidmore College, Saratoga Springs, NY 12866 (United States)

2010-09-01T23:59:59.000Z

243

Exploring interests: are there relationships among general interests, reading interests, and personality dimensions?  

E-Print Network (OSTI)

This study explored the relationships among high school students general interests, reading interests, and personality dimensions. Two hundred and fifty one 9th, 10th, 11th, and 12th grade students in a rural school district in east central Texas completed three questionnaires. General interests were determined by the Strong Interest Explorer, personality dimensions were determined by the Big Five Inventory, and book reading interests were determined by the Reading Interest Rating Scale. The reading interest scores were adjusted for reading ability based on Texas Assessment of Knowledge and Skills (TAKS) English/Language Arts scale scores. A factor analysis including six general interest variables, five personality variables, and four reading interest variables was conducted. The analysis yielded five factors. Factor 1 had the highest loadings from Hollands general interest types. Factor 2 was dominated by the book categories (Contemporary Fiction, Fact-based Literature, Poetry, and Modern Fantasy). Factors 3, 4, and 5 had the highest loadings from the personality dimensions. Factor 3 included Openness, Factor 4 included Conscientiousness, Agreeableness, and Neuroticism, and Factor 5 included Extraversion. Factor 3, which accounted for 11.67% of the variance, was the only factor where a personality variable (Openness), a general interest variable (Artistic), and a reading interest variable (Modern Fantasy) loaded moderately to highly together. In this particular case alone, teachers may help students select materials that match their personal needs and personalities (Lau & Cheung, 1988) by recommending texts in the modern fantasy genre to those who exhibit openness and value artistic expression. With the exception of Openness, none of the Big Five Personality Dimensions loaded with a book category. There was also only one strong book category and general interest loading. Reading interests appear to be exclusive of general life interests and personality dimensions. Based on the findings, it appears that text-based situational interest is evoked by topics or ideas that are universally appealing (Hidi & Anderson, 1992). Since text-based interest can be controlled by teachers to some degree (Krapp, Hidi, & Renninger, 1992; Schraw, Flowerday, & Lehman, 2001), promoting student independence and choice should broaden students interests and help increase intrinsic motivation to read (Deci, 1992).

West, Courtney Ann

2008-08-01T23:59:59.000Z

244

PERFORMANCE STATISTICS WEIGHTS  

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

90 lbs 90 lbs Delivered Curb Weight: 2936 lbs Distribution F/R: 59/41 % GVWR: 3795 lbs GAWR F/R: 2335/2250 lbs Payload: 905 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 106 inches Track F/R: 59/58 inches Length: 175 inches Width: 67 inches Height: 57.8 inches Ground Clearance: 4.3 inches Performance Goal: 5.0 inches TIRES Tire Mfg: Goodyear Tire Model: Integrity Tire Size: P185/65R15 Tire Pressure F/R: 35/33 psi

245

PERFORMANCE STATISTICS WEIGHTS  

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

27 lbs 27 lbs Delivered Curb Weight: 3618 lbs Distribution F/R: 58/42 % GVWR: 4680 lbs GAWR F/R: 2440/2440 lbs Payload: 1062 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 103.2 inches Track F/R: 61.1/60.2 inches Length: 174.5 inches Width: 71.4 inches Height: 69.5 inches Ground Clearance: 7.8 inches Performance Goal: 5.0 inches TIRES Tire Mfg: Continental Tire Model: EcoPlus Tire Size: P235/70R16

246

Insight REV dbk.indd  

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

67 lbs 67 lbs Delivered Curb Weight: 1959 lbs Distribution F/R: 61/39 % GVWR: 2380 lbs GAWR F/R: 1355/1035 lbs Payload: 411 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 94.5 inches Track F/R: 56.5/52.2 inches Length: 155.1 inches Width: 66.7 inches Height: 51.5 inches Ground Clearance: 4.6 inches Performance Goal: 5.0 inches TIRES Tire Mfg: Bridgestone Tire Model: Potenza Tire Size: 165/65R14

247

PERFORMANCE STATISTICS WEIGHTS  

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

3474 lbs 3474 lbs Delivered Curb Weight: 3435 lbs GVWR: 4718 lbs GAWR F/R: 2491/2436 lbs Distribution F/R: % Payload: 1283 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 106.6 in Track F/R: 61.0/61.0 in Length: 181.3 in Width: 71.6 in Height: 65.3 in Ground Clearance: 7.0 in Performance Goal: 5.0 in TIRES Tire Mfg: General Tire Model: Ameri GS60 Tire Size: P215/70R16 Tire Pressure F/R: 35/35 psi

248

PERFORMANCE STATISTICS WEIGHTS  

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

40 lbs 40 lbs Delivered Curb Weight: 3556 lbs Distribution F/R: 58/42 % GVWR: 4665 lbs GAWR F/R: Unavailable Payload: 1109 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 109.3 in Track F/R: 62.0/61.6 in Length: 189.2 in Width: 71.7 in Height: 57.9 in Ground Clearance: 5.9 in Performance Goal: 5.0 in TIRES Tire Mfg: Michellin Tire Model: Energy MXV458 Tire Size: P215/60R16 Tire Pressure F/R: 32/32

249

PERFORMANCE STATISTICS WEIGHTS  

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

5650 lbs 5650 lbs Delivered Curb Weight: 5579 lbs Distribution F/R: 51.8/48.2 GVWR: 7100 lbs GAWR F/R: 3200/4100 lbs Payload: 1521 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 116.0 in Track F/R: 68.2/67.0 in Length: 202.0 in Width: 79.0 in Height: 74.6 in Ground Clearance: 9.5 in Performance Goal: 5.0 in TIRES Tire Mfg: Bridgestone Tire Model: Dueler H/R Tire Size: P265/65R18 Tire Pressure F/R: 32 psi

250

Table 2.8 Motor Vehicle Mileage, Fuel Consumption, and Fuel ...  

U.S. Energy Information Administration (EIA)

Table 2.8 Motor Vehicle Mileage, Fuel Consumption, and Fuel Economy, 1949-2010: Year: Light-Duty Vehicles, Short Wheelbase 1: Light-Duty Vehicles, Long Wheelbase 2:

251

Dimension Characteristics and Precipitation Efficiency of Cumulonimbus Clouds in the Region Far South from the Mei-Yu Front over the Eastern Asian Continent  

Science Conference Proceedings (OSTI)

Dimension characteristics in precipitation properties of cumulonimbus clouds are basic parameters in understanding the vertical transport of water vapor in the atmosphere. In this study, the dimension characteristics and precipitation efficiency ...

Yukari Shusse; Kazuhisa Tsuboki

2006-07-01T23:59:59.000Z

252

Theoretical Studies of Convectively Forced Mesoscale Flows in Three Dimensions. Part I: Uniform Basic-State Flow  

Science Conference Proceedings (OSTI)

Convectively forced mesoscale flows in three dimensions are theoretically investigated by examining the transient response of a stably stratified atmosphere to convective heating. Solutions for the equations governing small-amplitude ...

Ji-Young Han; Jong-Jin Baik

2009-04-01T23:59:59.000Z

253

The perception of illumination : the phenomenological dimensions of natural light in the making of an urban sanctuary  

E-Print Network (OSTI)

This thesis addresses the experiential dimension of architecture as it relates to the dynamics of light and the universal presence of the phenomenal. The effort is to (re)imagine the environment: to behold the pageantry ...

DeBartolo, Jack, III

1994-01-01T23:59:59.000Z

254

The dimensions of the policy debate over transportation energy: The case of hydrogen in the United States  

E-Print Network (OSTI)

for production from non-renewable sources of energy. Inter-sources of energy. The low-carbon non-renewable productionenergy. The items that de?ne the second of the research policy- preference dimensionsNon-Renewable-

Collantes, Gustavo O

2008-01-01T23:59:59.000Z

255

Severe Downslope Windstorm Calculations in Two and Three Spatial Dimensions Using Anelastic Interactive Grid Nesting: A Possible Mechanism for Gustiness  

Science Conference Proceedings (OSTI)

The Clark nonhydrostatic anelastic code is extended to allow for interactive grid nesting in both two and three spatial dimensions. Tests are presented which investigate the accuracy of three different quadratic interpolation formulae which are ...

Terry L. Clark; R. D. Farley

1984-02-01T23:59:59.000Z

256

Thermodynamics of a charged hairy black hole in (2+1) dimensions  

E-Print Network (OSTI)

In this paper we study thermodynamics, statistics and spectroscopic aspects of a charged black hole with a scalar hair coupled to the gravity in (2+1) dimensions. We obtained effects of the black hole charge and scalar field on the thermodynamical and statistical quantities. We find that scalar charge may increase entropy, temperature and probability, while may decrease black hole mass, free and internal energy. Also electric charge increases probability and decreases temperature and internal energy. Also we investigate stability of the system and find that the thermodynamical stability exists.

J. Sadeghi; H. Farahani

2013-08-05T23:59:59.000Z

257

Search for Universal Extra Dimensions in p(p)over-bar Collisions  

Science Conference Proceedings (OSTI)

We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of 7.3 fb{sup -1}, collected by the D0 detector at a p{bar p} center-of-mass energy of 1.96 TeV. The decay chain of KK particles can lead to a final state with two muons of the same charge. This signature is used to set a lower limit on the compactification scale of R{sup -1} > 260 GeV in a minimal UED model.

Abazov V. M.; Abbott B.; Acharya B. S.; Adams M.; Adams T.; Alexeev G. D.; Alkhazov G.; Alton A.; Alverson G.; Aoki M.; Askew A.; Asman B.; Atkins S.; Atramentov O.; Augsten K.; Avila C.; BackusMayes J.; Badaud F.; Bagby L.; Baldin B.; Bandurin D. V.; Banerjee S.; Barberis E.; Baringer P.; Barreto J.; Bartlett J. F.; Bassler U.; Bazterra V.; Bean A.; Begalli M.; Belanger-Champagne C.; Bellantoni L.; Beri S. B.; Bernardi G.; Bernhard R.; Bertram I.; Besancon M.; Beuselinck R.; Bezzubov V. A.; Bhat P. C.; Bhatia S.; Bhatnagar V.; Blazey G.; Blessing S.; Bloom K.; Boehnlein A.; Boline D.; Boos E. E.; Borissov G.; Bose T.; Brandt A.; Brandt O.; Brock R.; Brooijmans G.; Bross A.; Brown D.; Brown J.; Bu X. B.; Buehler M.; Buescher V.; Bunichev V.; Burdin S.; Burnett T. H.; Buszello C. P.; Calpas B.; Camacho-Perez E.; Carrasco-Lizarraga M. A.; Casey B. C. K.; Castilla-Valdez H.; Chakrabarti S.; Chakraborty D.; Chan K. M.; Chandra A.; Chapon E.; Chen G.; Chevalier-Thery S.; Cho D. K.; Cho S. W.; Choi S.; Choudhary B.; Cihangir S.; Claes D.; Clutter J.; Cooke M.; Cooper W. E.; Corcoran M.; Couderc F.; Cousinou M-C; Croc A.; Cutts D.; Das A.; Davies G.; de Jong S. J.; De La Cruz-Burelo E.; Deliot F.; Demina R.; Denisov D.; Denisov S. P.; Desai S.; Deterre C.; DeVaughan K.; Diehl H. T.; Diesburg M.; Ding P. F.; Dominguez A.; Dorland T.; Dubey A.; Dudko L. V.; Duggan D.; Duperrin A.; Dutt S.; Dyshkant A.; Eads M.; Edmunds D.; Ellison J.; Elvira V. D.; Enari Y.; Evans H.; Evdokimov A.; Evdokimov V. N.; Facini G.; Ferbel T.; Fiedler F.; Filthaut F.; Fisher W.; Fisk H. E.; Fortner M.; Fox H.; Fuess S.; Garcia-Bellido A.; Garcia-Guerra G. A.; Gavrilov V.; Gay P.; Geng W.; Gerbaudo D.; Gerber C. E.; Gershtein Y.; Ginther G.; Golovanov G.; Goryachev V. N.; Goussiou A.; Grannis P. D.; Greder S.; Greenlee H.; Greenwood Z. D.; Gregores E. M.; Grenier G.; Gris Ph; Grivaz J-F; Grohsjean A.; Gruenendahl S.; Gruenewald M. W.; Guillemin T.; Gutierrez G.; Gutierrez P.; Haas A.; Hagopian S.; Haley J.; Han L.; Harder K.; Harel A.; Hauptman J. M.; Hays J.; Head T.; Hebbeker T.; Hedin D.; Hegab H.; Heinson A. P.; Heintz U.; Hensel C.; Heredia-De La Cruz I.; Herner K.; Hesketh G.; Hildreth M. D.; Hirosky R.; Hoang T.; Hobbs J. D.; Hoeneisen B.; Hohlfeld M.; Hubacek Z.; Hynek V.; Iashvili I.; Ilchenko Y.; Illingworth R.; Ito A. S.; Jabeen S.; Jaffre M.; Jamin D.; Jayasinghe A.; Jesik R.; Johns K.; Johnson M.; Jonckheere A.; Jonsson P.; Joshi J.; Jung A. W.; Juste A.; Kaadze K.; Kajfasz E.; Karmanov D.; Kasper P. A.; Katsanos I.; Kehoe R.; Kermiche S.; Khalatyan N.; Khanov A.; Kharchilava A.; Kharzheev Y. N.; Kohli J. M.; Kozelov A. V.; Kraus J.; Kulikov S.; Kumar A.; Kupco A.; Kurca T.; Kuzmin V. A.; Lammers S.; Landsberg G.; Lebrun P.; Lee H. S.; Lee S. W.; Lee W. M.; Lellouch J.; Li H.; Li L.; Li Q. Z.; Lietti S. M.; Lim J. K.; Lincoln D.; Linnemann J.; Lipaev V. V.; Lipton R.; Liu Y.; Lobodenko A.; Lokajicek M.; de Sa R. Lopes; Lubatti H. J.; Luna-Garcia R.; Lyon A. L.; Maciel A. K. A.; Mackin D.; Madar R.; Magana-Villalba R.; Malik S.; Malyshev V. L.; Mansour J.; Maravin Y.; Martinez-Ortega J.; McCarthy R.; McGivern C. L.; Meijer M. M.; Melnitchouk A.; Menezes D.; Mercadante P. G.; Merkin M.; Meyer A.; Meyer J.; et al.

2012-03-30T23:59:59.000Z

258

Gas turbine engine braking and method  

SciTech Connect

A method is described of decelerating a ground vehicle driven by a gas turbine engine having a gas generator section and a free turbine output power section driven by a gas flow from the gas generator section, comprising the steps of: altering the incidence of gas flow from the gas generator section onto the free turbine section whereby said gas flow opposes rotation of the free turbine section; increasing gas generator section speed; and subsequent to said altering and increasing steps, selectively mechanically interconnecting said gas generator and free turbine sections whereby the rotational inertia of the gas generator section tends to decelerate the free turbine section.

Mattson, G.; Woodhouse, G.

1980-07-01T23:59:59.000Z

259

Electric vehicle regenerative antiskid braking and traction ...  

Patent Number: 5,450,324: Issued: September 12, 1995: Official Filing: View the Complete Patent at the US Patent & Trademark Office: Lab: Idaho ...

260

Search for signatures of extra dimensions in the diphoton mass spectrum at the Large Hadron Collider  

SciTech Connect

A search for signatures of extra dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard model expectation is observed using a data sample collected in proton-proton collisions at {radical}s = 7 TeV corresponding to an integrated luminosity of 2.2 fb{sup -1}. In the context of the large-extra-dimensions model, lower limits are set on the effective Planck scale in the range of 2.3-3.8 TeV at the 95% confidence level. These limits are the most restrictive bounds on virtual-graviton exchange to date. The most restrictive lower limits to date are also set on the mass of the first graviton excitation in the Randall-Sundrum model in the range of 0.86-1.84 TeV, for values of the associated coupling parameter between 0.01 and 0.10.

Chatrchyan, Serguei; Khachatryan, Vardan; Sirunyan, Albert M.; Tumasyan, Armen; Adam, Wolfgang; Bergauer, Thomas; Dragicevic, Marko; Erö, Janos; Fabjan, Christian; Friedl, Markus; Fruehwirth, Rudolf; /Yerevan Phys. Inst. /Vienna, OAW /Minsk, High Energy Phys. Ctr. /Antwerp U., WISINF /Vrije U., Brussels /Brussels U. /Gent U. /Louvain U. /UMH, Mons /Rio de Janeiro, CBPF /Rio de Janeiro State U.

2011-12-01T23:59:59.000Z

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


261

The effect of a fifth large-scale space-time dimension on orbital dynamics  

E-Print Network (OSTI)

A model based on simple assumptions about 4-dimensional space-time being closed and isotropic, and embedded in a 5th large-scale dimension, r, representing the radius of curvature of space-time, has been used in an application of Newton's Second Law to describe a system with angular momentum. It has been found that the equations of MOND used to explain the rotation curves of galaxies appear as a limit within this derivation and that there is a universal acceleration constant, ao, with a value, again consistent with that used by MOND. This approach does not require modification of Newtonian dynamics, only its extension into a fifth large-scale dimension. The transition from the classical Newtonian dynamics to the MOND regime emerges naturally and without the introduction of arbitrary fitting functions, if this 5-dimensional model is adopted. The paper also includes the derivation of an effect in 5-dimensional orbital dynamics which is in reasonable agreement with the observed Pioneer Anomaly.

M. B. Gerrard; T. J. Sumner

2006-05-12T23:59:59.000Z

262

Triple $Z^0$-boson production in large extra dimensions model at ILC  

E-Print Network (OSTI)

We investigate the effects induced by the interactions of the Kaluza-Klein (KK) graviton with the standard model (SM) particles on the triple $Z^0$-boson production process at the ILC in the framework of the large extra dimension (LED) model. We present the dependence of the integrated cross sections on the electron-positron colliding energy $\\sqrt{s}$, and various kinematic distributions of final $Z^0$ bosons and their subsequential decay products in both the SM and the LED model. We also provide the relationship between the integrated cross section and the fundamental scale $M_S$ by taking the number of the extra dimensions ($d$) as 3, 4, 5, and 6, respectively. The numerical results show that the LED effect can induce a observable relative discrepancy for the integrated cross section ($\\delta_{LED}$), which can reach the value of $13.11% (9.27%)$ when $M_S = 3.5 (3.8) TeV$ and the colliding energy $\\sqrt{s} = 1 TeV$. We find the relative discrepancy of LED effect can even reach few dozen percent in the high transverse momentum area or the central rapidity region of the final $Z^0$-bosons and muons.

Jiang Ruo-Cheng; Li Xiao-Zhou; Ma Wen-Gan; Guo Lei; Zhang Ren-You

2012-11-29T23:59:59.000Z

263

Electric and magnetic screenings of gluons in a model with dimension-2 gluon condensate  

E-Print Network (OSTI)

Electric and magnetic screenings of the thermal gluons are studied by using the background expansion method in a gluodynamic model with dimension-2 gluon condensate. At low temperature, the electric and magnetic gluons are degenerate. With the increasing of temperature, it is found that the electric and magnetic gluons start to split at certain temperature $T_0$. The electric screening mass changes rapidly with temperature when $T>T_0$, and the Polyakov loop expectation value rises sharply around $T_0$ from zero in the vacuum to a value around 0.8 at high temperature. This suggests that the color electric deconfinement phase transition is driven by electric gluons. It is also observed that the magnetic screening mass keeps almost the same as its vacuum value, which manifests that the magnetic gluons remains confined. Both the screening masses and the Polyakov loop results are qualitatively in agreement with the Lattice calculations.

Fukun Xu; Mei Huang

2011-11-22T23:59:59.000Z

264

The Effective Chiral Lagrangian From Dimension-Six Parity and Time-Reversal Violation  

E-Print Network (OSTI)

We classify the parity- and time-reversal-violating operators involving quark and gluon fields that have effective dimension six: the quark electric dipole moment, the quark and gluon chromo-electric dipole moments, and four four-quark operators. We construct the effective chiral Lagrangian with hadronic and electromagnetic interactions that originate from them, which serves as the basis for calculations of low-energy observables. The form of the effective interactions depends on the chiral properties of these operators. We develop a power-counting scheme and calculate within this scheme, as an example, the parity- and time-reversal-violating pion-nucleon form factor. We also discuss the electric dipole moments of the nucleon and light nuclei.

J. de Vries; E. Mereghetti; R. G. E. Timmermans; U. van Kolck

2012-12-05T23:59:59.000Z

265

Measurement of specimen dimensions and dynamic pressure in dynamic triaxial experiments  

SciTech Connect

Novel experimental techniques are developed to measure the rapid changes in specimen dimensions during dynamic triaxial experiments. A capacitance gage is designed and constructed to measure the diameter change of the specimen inside the pressure chamber at both low and high rates. The length change is determined by a linear variable differential transformer at low rates and by Kolsky bar signals at high rates. The Kolsky bar also measures the dynamic axial stress in the specimen during the high-rate phase of an experiment. A line pressure gage records the hydrostatic pressure in the chamber. The dynamic pressure variation in the chamber during axial impact loading is detected by a manganin gage placed inside the chamber. The feasibility of this new experimental setup is demonstrated by dynamic triaxial experiments on a fine dry sand.

Kabir, Md. E. [School of Aeronautics/Astronautics, Purdue University, 701 West Stadium Avenue, West Lafayette, Indiana 47907-2045 (United States); Chen, Weinong W. [School of Aeronautics/Astronautics, Purdue University, 701 West Stadium Avenue, West Lafayette, Indiana 47907-2045 (United States); School of Materials Engineering, Purdue University, 701 West Stadium Avenue, West Lafayette, Indiana 47907-2045 (United States)

2009-12-15T23:59:59.000Z

266

Measurements of Nb3Sn conductor dimension changes during heat treatment  

SciTech Connect

During the heat treatment of Nb{sub 3}Sn coils the conductor material properties change significantly. These effects together with the changes of the conductor dimensions during heat treatment may introduce large strain in the coils for accelerator magnets. The US LHC Accelerator Research Program (LARP) has initiated a study aiming at understanding the thermal expansion and contraction of Nb3Sn strands, cables and coils during heat treatment. Several measurements on strands and cables were performed in order to have sufficient inputs for finite element simulation of the dimensional changes during heat treatment. In this paper the results of measurements of OST-RRP Nb{sub 3}Sn conductor used in the LARP magnet program are discussed.

Bocian, D.; Ambrosio, G.; Whitson, G.M.; /Fermilab

2011-06-01T23:59:59.000Z

267

Distinguishing Supersymmetry From Universal Extra Dimensions or Little Higgs Models With Dark Matter Experiments  

SciTech Connect

There are compelling reasons to think that new physics will appear at or below the TeV-scale. It is not known what form this new physics will take, however. Although The Large Hadron collider is very likely to discover new particles associated with the TeV-scale, it may be difficult for it to determine the nature of those particles, whether superpartners, Kaluza-Klein modes or other states. In this article, we consider how direct and indirect dark matter detection experiments may provide information complementary to hadron colliders, which can be used to discriminate between supersymmetry, models with universal extra dimensions, and Little Higgs theories. We find that, in many scenarios, dark matter experiments can be effectively used to distinguish between these possibilities.

Hooper, Dan; Zaharijas, Gabrijela; /Fermilab

2006-12-01T23:59:59.000Z

268

Linear collider signals of an invisible Higgs boson in theories of large extra dimensions  

SciTech Connect

We discuss the possibility of detecting a Higgs boson in electron-positron collider experiments if large extra dimensions are realized in nature. In such a case, the Higgs boson can decay invisibly by oscillating into a graviscalar Kaluza-Klein tower. We show that the search for such a Higgs boson at an e{sup +}e{sup -} linear collider entails more complications than are usually thought of in relation to an invisibly decaying Higgs boson. The main sources of such complications are due to the simultaneous presence of a continuum graviton production and the broadening of the Higgs peak. We discuss possible ways of overcoming such difficulties and conclude that the detection of such a Higgs boson might still be a problem beyond the mass range of 250-300 GeV.

Datta, Anindya [INFN, Sezione di Roma, Universita La Sapienza, P. le A. Moro 2, Rome I-00185 (Italy); Huitu, Katri [Helsinki Institute of Physics, P.O. Box 64, FIN-00014 University of Helsinki (Finland); High Energy Physics Division, Department of Physical Sciences, P.O. Box 64, FIN-00014 University of Helsinki (Finland); Laamanen, Jari [Helsinki Institute of Physics, P.O. Box 64, FIN-00014 University of Helsinki (Finland); Mukhopadhyaya, Biswarup [Harish Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad - 211 019 (India)

2004-10-01T23:59:59.000Z

269

Free Energy and Plaquette expectation value for gluons on the lattice, in three dimensions  

E-Print Network (OSTI)

We calculate the perturbative value of the Free Energy in Lattice QCD in three dimensions, up to three loops. Our calculation is performed using the Wilson formulation for gluons in SU(N) gauge theories. The Free Energy is directly related to the average plaquette. To carry out the calculation, we compute the coefficients involved in the perturbative expansion of the Free Energy up to three loops, using an automated set of procedures developed by us in Mathematica. The dependence on N is shown explicitly in our results. For purposes of comparison, we also present the individual contributions from every diagram. These have been obtained by means of two independent calculations, in order to cross check our results.

H. Panagopoulos; A. Skouroupathis; A. Tsapalis

2006-01-06T23:59:59.000Z

270

The graph representation approach to topological field theory in 2 + 1 dimensions  

SciTech Connect

An alternative definition of topological quantum field theory in 2+1 dimensions is discussed. The fundamental objects in this approach are not gauge fields as in the usual approach, but non-local observables associated with graphs. The classical theory of graphs is defined by postulating a simple diagrammatic rule for computing the Poisson bracket of any two graphs. The theory is quantized by exhibiting a quantum deformation of the classical Poisson bracket algebra, which is realized as a commutator algebra on a Hilbert space of states. The wavefunctions in this graph representation'' approach are functionals on an appropriate set of graphs. This is in contrast to the usual connection representation'' approach in which the theory is defined in terms of a gauge field and the wavefunctions are functionals on the space of flat spatial connections modulo gauge transformations.

Martin, S.P.

1991-02-01T23:59:59.000Z

271

Limits on Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT  

Science Conference Proceedings (OSTI)

We present limits for the compactification scale in the theory of Large Extra Dimensions (LED) proposed by Arkani-Hamed, Dimopoulos, and Dvali. We use 11 months of data from the Fermi Large Area Telescope (Fermi-LAT) to set gamma ray flux limits for 6 gamma-ray faint neutron stars (NS). To set limits on LED we use the model of Hannestad and Raffelt (HR) that calculates the Kaluza-Klein (KK) graviton production in supernova cores and the large fraction subsequently gravitationally bound around the resulting NS. The predicted decay of the bound KK gravitons to {gamma}{gamma} should contribute to the flux from NSs. Considering 2 to 7 extra dimensions of the same size in the context of the HR model, we use Monte Carlo techniques to calculate the expected differential flux of gamma-rays arising from these KK gravitons, including the effects of the age of the NS, graviton orbit, and absorption of gamma-rays in the magnetosphere of the NS. We compare our Monte Carlo-based differential flux to the experimental differential flux using maximum likelihood techniques to obtain our limits on LED. Our limits are more restrictive than past EGRET-based optimistic limits that do not include these important corrections. Additionally, our limits are more stringent than LHC based limits for 3 or fewer LED, and comparable for 4 LED. We conclude that if the effective Planck scale is around a TeV, then for 2 or 3 LED the compactification topology must be more complicated than a torus.

Ajello, M.; /SLAC /KIPAC, Menlo Park; Baldini, L.; /INFN, Pisa; Barbiellini, G.; /INFN, Trieste /Trieste U.; Bastieri, D.; /INFN, Padua /Padua U.; Bechtol, K.; /SLAC /KIPAC, Menlo Park; Bellazzini, R.; /INFN, Pisa; Berenji, B.; /SLAC /KIPAC, Menlo Park; Bloom, E.D.; /SLAC /KIPAC, Menlo Park; Bonamente, E.; /INFN, Perugia /Perugia U.; Borgland, A.W.; /SLAC /KIPAC, Menlo Park; Bregeon, J.; /INFN, Pisa; Brigida, M.; /Bari Polytechnic /INFN, Bari; Bruel, P.; /Ecole Polytechnique; Buehler, R.; /SLAC /KIPAC, Menlo Park; Buson, S.; /INFN, Padua /Padua U.; Caliandro, G.A.; /CSIC, Catalunya; Cameron, R.A.; /SLAC /KIPAC, Menlo Park; Caraveo, P.A.; /Brera Observ.; Casandjian, J.M.; /AIM, Saclay; Cecchi, C.; /INFN, Perugia /Perugia U.; Charles, E.; /SLAC /KIPAC, Menlo Park /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /ASDC, Frascati /Perugia U. /SLAC /KIPAC, Menlo Park /Montpellier U. /Stockholm U. /Stockholm U., OKC /Royal Swedish Acad. Sci. /ASDC, Frascati /Udine U. /INFN, Trieste /Bari Polytechnic /INFN, Bari /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /Bari Polytechnic /INFN, Bari /Ecole Polytechnique /NASA, Goddard /Hiroshima U. /Bari Polytechnic /INFN, Bari /INFN, Bari /ASDC, Frascati /INFN, Perugia /Perugia U. /Bari Polytechnic /INFN, Bari /Bari Polytechnic /INFN, Bari /Bologna Observ. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /AIM, Saclay /Alabama U., Huntsville /INFN, Padua; /more authors..

2012-08-17T23:59:59.000Z

272

Search for large extra dimensions in the exclusive photon + missing energy channel in p anti-p collisions  

SciTech Connect

A search was conducted for evidence of large extra dimensions (LED) at Fermi National Accelerator Laboratory's Tevatron using the D0 detector. The Tevatron is a p{bar p} collider at a center of mass energy of 1.96 TeV. Events with particles escaping into extra dimensions will have large missing energy. The search was carried out using data from a total luminosity of 197 {+-} 13 pb{sup -1} with an observable high transverse momentum photon and a large transverse missing energy. The 70 observed events are consistent with photons produced by standard known reactions plus other background processes produced by cosmic muons. The mass limits on the fundamental mass scale at 95% confidence level for large extra dimensions of 2, 4, 6 and 8 are 500 GeV, 581 GeV, 630 GeV, and 668 GeV respectively.

Lazoflores, Jose A.; /Florida State U.

2006-04-01T23:59:59.000Z

273

UMD-PP-04-041 Reactor Searches for Neutrino Magnetic Moment as a Probe of Extra Dimensions  

E-Print Network (OSTI)

We present calculations of the magnetic moment contribution to neutrino electron scattering in large extra dimension brane-bulk models (LED) with three bulk neutrinos. We discuss the cases with two and three large extra dimensions of sizes R. The calculations are done using reactor flux from Uranium, 235 U as the neutrino source. We find that if the electron neutrino mass is chosen to be in the range of one eV, the differential cross section for ? ? e scattering for low electron recoil energy can be of the same order as the presently explored values in reactor experiments. Furthermore the spectral shape for the LED models is different from the four dimensional case. Future higher precision reactor experiments can therefore be used to provide new constraints on a class of large extra dimension theories. 1 I.

R. N. Mohapatra; Siew-phang Ng; Haibo Yu

2004-01-01T23:59:59.000Z

274

Construction of Recurrent Fractal Interpolation Surfaces with Function Scaling Factors and Estimation of Box-counting Dimension on Rectangular Grids  

E-Print Network (OSTI)

We consider a construction of recurrent fractal interpolation surfaces with function vertical scaling factors and estimation of their box-counting dimension. A recurrent fractal interpolation surface (RFIS) is an attractor of a recurrent iterated function system (RIFS) which is a graph of bivariate interpolation function. For any given data set on rectangular grids, we construct general recurrent iterated function systems with function vertical scaling factors and prove the existence of bivariate functions whose graph are attractors of the above constructed RIFSs. Finally, we estimate lower and upper bounds for the box-counting dimension of the constructed RFISs.

Chol-Hui Yun; Hui-Chol Choi; Hyong-Chol O

2013-07-10T23:59:59.000Z

275

Rare B{sub (s)} decays in the standard model and in a scenario with two universal extra dimensions  

SciTech Connect

I consider the exclusive B{yields}K*{gamma}, B{yields}K*{sub 2}{gamma}, B{sub s}{yields}{phi}{gamma} and B{yields}K{eta}{sup ( Prime )}{gamma} radiative decays in the Standard Model and in a scenario with two universal extra dimensions compactified on a chiral square. Computed branching fractions depend on 1/R, the size of the extra dimensions, so that comparison with available data allows to put bounds on such a parameter. The most stringent bound comes from the mode B*{sup 0}{yields}K*{sup 0}{gamma} and reads: 1/R > 710 GeV.

Biancofiore, Pietro [Dipartimento di Fisica, Universita di Bari (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Bari (Italy)

2012-10-23T23:59:59.000Z

276

The Emotional and Spiritual Dimensions of Being a Pastor: Authenticity and Identity  

E-Print Network (OSTI)

Emotional labor and its influence on authenticity and identity amongst human service workers has been the focus of numerous studies. Often these studies viewed identity as a stable sense of self. This study set out to examine emotional labor amongst clergy and how it may differ from the emotional labor experienced in other occupations, with the premise that individuals have multiple identities that shift and change depending on the situational context. A thematic analysis of interviews conducted with twenty-seven clergy and a textual analysis of denominational/church texts was conducted to examine the following ideas: 1) how clergy negotiated tensions of authenticity and identity in their work; 2) how clergy described the spiritual and emotional dimensions of their work; 3) how denominational texts address issues of spiritual and emotional labor; and, 4) if clergy felt enabled and/or constrained by denominational standards and beliefs. The results of this study indicated that emotional and spiritual labor amongst clergy is unique for several reasons. One, the emotional labor clergy engaged in served a positive function because they see it as means of helping others. Second, clergy were aware that emotional labor was intrinsic to the job and they engaged in activities to preempt or manage the tension they felt when the job required them to mask their true feelings and display organizationally preferred feelings. Finally, clergy enjoyed the spiritual dimension of their jobs; thus they were engaged in spiritual work (authentic spirituality), not spiritual labor (inauthentic spirituality). Results also indicated that denominational texts did convey a preferred identity or ideal for how pastors should behave. Pastors indicated that the denominational expectations and guidelines for pastors both enabled and constrained them. The majority of the pastors felt the freedom to disagree civilly and the denomination/church provided venues in which pastors could communicate their dissenting views. However, in some cases, pastors felt the denominational guidelines for the "ideal pastor" were in conflict with how they saw their own role as pastor and they left the denomination. Results also revealed how pastors identities shifted and changed as the context in which they were ministering changed.

Otey, Penny Addison

2010-08-01T23:59:59.000Z

277

A tale of two houses: the human dimension of demand response enabling technology from a case study of an adaptive wireless thermostat.  

E-Print Network (OSTI)

and Ed Arens. 2008. Demand Response-Enabled ResidentialEfficiency and Demand Response Programs for 2005/2006.The Human Dimension of Demand Response Enabling Technology

Peffer, Therese; Arens, Edward A; Chen, Xue; Jang, Jaehwi; Auslander, David M.

2008-01-01T23:59:59.000Z

278

Energy distribution of the Einstein-Klein-Gordon system for a static spherically symmetric spacetime in (2+1)-dimensions  

E-Print Network (OSTI)

We use Moeller's energy-momentum complex in order to explicitly compute the energy and momentum density distributions for an exact solution of Einstein's field equations with a negative cosmological constant minimally coupled to a static massless scalar field in a static, spherically symmetric background in (2+1)-dimensions.

I. Radinschi; Th. Grammenos

2005-08-01T23:59:59.000Z

279

Second kind integral equations for the first kind Dirichlet problem of the biharmonic equation in three dimensions  

Science Conference Proceedings (OSTI)

A Fredholm second kind integral equation (SKIE) formulation is constructed for the Dirichlet problem of the biharmonic equation in three dimensions. A fast numerical algorithm is developed based on the constructed SKIE. Its performance is illustrated ... Keywords: Biharmonic equation, Dirichlet problem, Second kind integral equation

Shidong Jiang; Bo Ren; Paul Tsuji; Lexing Ying

2011-08-01T23:59:59.000Z

280

A Cartesian grid embedded boundary method for solving the Poisson and heat equations with discontinuous coefficients in three dimensions  

Science Conference Proceedings (OSTI)

We present a method for solving Poisson and heat equations with discontinuous coefficients in two- and three-dimensions. It uses a Cartesian cut-cell/embedded boundary method to represent the interface between materials, as described in Johansen and ... Keywords: Discontinuous coefficient, Finite volume methods, Heat equation, Irregular domain, Jump conditions, Multigrid methods

R. K. Crockett; P. Colella; D. T. Graves

2011-04-01T23:59:59.000Z

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281

An approach towards an event-fed solution for slowly changing dimensions in data warehouses with a detailed case study  

Science Conference Proceedings (OSTI)

From the point of view of a data warehouse system, collecting and receiving information from source systems is crucial for all subsequent business intelligence applications. Incoming information can generally be classified into two types: (1) the state-oriented ... Keywords: Active data warehousing, Data refresh, Event-based data integration, Slowly changing dimension

Tho Manh Nguyen; A. Min Tjoa; Jaromir Nemec; Martin Windisch

2007-10-01T23:59:59.000Z

282

Matrix at slow roll: On the equivalence of the energy spectrum and anomalous dimensions for Yang-Mills models  

E-Print Network (OSTI)

We analyze the low energy limit of the massive version of a BFSS-like matrix model and show that in this limit it is equivalent to the matrix model introduced for description of the spectrum of anomalous dimensions for local gauge invariant composite operators in $\\mathcal{N}=4$ super Yang-Mills

Sochichiu, Corneliu

2010-01-01T23:59:59.000Z

283

The global dimension of the endomorphism ring of a generator-cogenerator for a hereditary artin algebra  

E-Print Network (OSTI)

The global dimension of the endomorphism ring of a generator-cogenerator for a hereditary artin a -module which is both a generator and a cogenerator. We are going to describe the possibilities is called a generator if any projective module belongs to add M; it is called a cogenerator if any injective

Ringel, Claus Michael

284

Neutrino Transfer in Three Dimensions for Core-Collapse Supernovae. I. Static Configurations  

E-Print Network (OSTI)

We develop a numerical code to calculate the neutrino transfer with multi-energy and multi-angle in three dimensions (3D) for the study of core-collapse supernovae. The numerical code solves the Boltzmann equations for neutrino distributions by the discrete-ordinate (S_n) method with a fully implicit differencing for time advance. The Boltzmann equations are formulated in the inertial frame with collision terms being evaluated to the zeroth order of v/c. A basic set of neutrino reactions for three neutrino species is implemented together with a realistic equation of state of dense matter. The pair process is included approximately in order to keep the system linear. We present numerical results for a set of test problems to demonstrate the ability of the code. The numerical treatments of advection and collision terms are validated first in the diffusion and free streaming limits. Then we compute steady neutrino distributions for a background extracted from a spherically symmetric, general relativistic simulation of 15Msun star and compare them with the results in the latter computation. We also demonstrate multi-D capabilities of the 3D code solving neutrino transfers for artificially deformed supernova cores in 2D and 3D. Formal solutions along neutrino paths are utilized as exact solutions. We plan to apply this code to the 3D neutrino-radiation hydrodynamics simulations of supernovae. This is the first article in a series of reports on the development.

Kohsuke Sumiyoshi; Shoichi Yamada

2012-01-11T23:59:59.000Z

285

Critical Dimensions of Water-tamped Slabs and Spheres of Active Material  

DOE R&D Accomplishments (OSTI)

The magnitude and distribution of the fission rate per unit area produced by three energy groups of moderated neutrons reflected from a water tamper into one side of an infinite slab of active material is calculated approximately in section II. This rate is directly proportional to the current density of fast neutrons from the active material incident on the water tamper. The critical slab thickness is obtained in section III by solving an inhomogeneous transport integral equation for the fast-neutron current density into the tamper. Extensive use is made of the formulae derived in "The Mathematical Development of the End-Point Method" by Frankel and Goldberg. In section IV slight alterations in the theory outlined in sections II and III were made so that one could approximately compute the critical radius of a water-tamper sphere of active material. The derived formulae were applied to calculate the critical dimensions of water-tamped slabs and spheres of solid UF{sub 6} leaving various (25) isotope enrichment fractions. Decl. Dec. 16, 1955.

Greuling, E.; Argo, H.: Chew, G.; Frankel, M. E.; Konopinski, E.J.; Marvin, C.; Teller, E.

1946-08-06T23:59:59.000Z

286

Search for Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT  

SciTech Connect

Large extra dimensions (LED) have been proposed to account for the apparent weakness of gravitation. These theories also indicate that the postulated massive Kaluza-Klein (KK) gravitons may be produced by nucleon-nucleon bremsstrahlung in the course of core collapse of supernovae. Hannestad and Raffelt have predicted energy spectra of gamma ray emission from the decay of KK gravitons trapped by the gravity of the remnant neutron stars (NS). These and other authors have used EGRET data on NS to obtain stringent limits on LED. Fermi-LAT is observing radio pulsar positions obtained from radio and x-ray catalogs. NS with certain characteristics are unlikely emitter of gamma rays, and emit in radio and perhaps x-rays. This talk will focus on the blind analysis we plan to perform, which has been developed using the 1st 2 months of all sky data and Monte Carlo simulations, to obtain limits on LED based on about 1 year of Fermi-LAT data. Preliminary limits from this analysis using these first 2 months of data will be also be discussed.

Berenji, Bijan; /Stanford U., Appl. Phys. Dept. /SLAC

2012-09-19T23:59:59.000Z

287

CERN-TH/2001-124 PROBE OF SUSY AND EXTRA DIMENSIONS BY THE BROOKHAVEN g-2 EXPERIMENT  

E-Print Network (OSTI)

A brief review is given of a = (g ? 2)/2 as a probe of supersymmetry and of extra dimensions. It is known since the early to mid nineteen eightees that the supersymmetric electro-weak correction to a can be as large or larger than the Standard Model electro-weak correction and thus any experiment that proposes to test the Standard Model electro-weak correction will also test the supersymmetric correction and constrain supersymmetric models. The new physics effect seen in the Brookhaven (BNL) experiment is consistent with these early expectations. Detailed analyses within the well motivated supergravity unified model show that the size of the observed difference (a exp ? a SM ) seen at Brookhaven implies upper limits on sparticle masses in a mass range accessible to the direct observation of these particles at the Large Hadron Collider. Further, analyses also show that the BNL data is favorable for the detection of supersymmeteric dark matter in direct dark matter searches. The effect of large extra dimensions on a is also discussed. It is shown that with the current limits on the size of extra dimensions, which imply that the inverse size of such dimensions lies in the TeV region, their effects on a relative to Permanent address 1 the supersymmetric contribution is small and thus extra dimensions do not produce a serious background to the supersymmetric contribution. It is concluded that the analysis of the additional data currently underway at Brookhaven as well as a reduction of the hadronic error will help pin down the scale of weak scale supersymmetry even more precisely. 1.

Pran Nath

2001-01-01T23:59:59.000Z

288

1 Noncommutative gravity in three dimensions coupled to point-like sources  

E-Print Network (OSTI)

Noncommutative gravity in three dimensions with no cosmological constant is reviewed. We find a solution which describes the presence of a torsional source. 1 What does noncommutative mean? Please see [1] for a review of noncommutative field theory, if you want to study more. Consider noncommutative coordinates, for example [ x, y] = i ?, (1) where ? is a real constant. Then the uncertainty lies between x and y, namely, ?x?y ? ?, (2) (where a numerical factor has omitted). This means the existence of the minimal length scale. If complex combinations of the coordinates, z = x + iy and z = x ? iy, are introduced, they satisfy [ z, z] = 2?. (3) There are different representations to describe the noncommutativity; the commutative coordinate formalism with the star product, the Fock space (operator) formalism, etc. (see [1] for details). In this talk, we simply use them identically, unless the identification leads to confusions (thus, we do not use ? in this talk). For example, we denote the equalities 1 = |n??n | , z = ? ? ? ? ? ? ? ? 2? n + 1|n??n + 1 | , z = 2? n + 1|n + 1??n | , (4) n=0 n=0 where ket and bra satisfy z|0 ? = 0, z|n ? = ? 2? ? n|n ? 1?, z|n ? = ? 2? ? n + 1|n + 1?, and so on. Another example is 2 (?1) m Lm(2r 2 /?)e ?r2 /? = |m??m | , (5) where r2 = x2 + y2 and Ln(x) is the Lagurre polynomial. For later use, we define 2 the inverse of z, z as ? ? 1 1 1 1 1 ? ? ? |n + 1??n | , ? ? z 2? n + 1 z 2? This definition leads to z 1

Kiyoshi Shiraishi

2002-01-01T23:59:59.000Z

289

Considering the normative, systemic and procedural dimensions in indicator-based sustainability assessments in agriculture  

Science Conference Proceedings (OSTI)

This paper develops a framework for evaluating sustainability assessment methods by separately analyzing their normative, systemic and procedural dimensions as suggested by Wiek and Binder [Wiek, A, Binder, C. Solution spaces for decision-making - a sustainability assessment tool for city-regions. Environ Impact Asses Rev 2005, 25: 589-608.]. The framework is then used to characterize indicator-based sustainability assessment methods in agriculture. For a long time, sustainability assessment in agriculture has focused mostly on environmental and technical issues, thus neglecting the economic and, above all, the social aspects of sustainability, the multi-functionality of agriculture and the applicability of the results. In response to these shortcomings, several integrative sustainability assessment methods have been developed for the agricultural sector. This paper reviews seven of these that represent the diversity of tools developed in this area. The reviewed assessment methods can be categorized into three types: (i) top-down farm assessment methods; (ii) top-down regional assessment methods with some stakeholder participation; (iii) bottom-up, integrated participatory or transdisciplinary methods with stakeholder participation throughout the process. The results readily show the trade-offs encountered when selecting an assessment method. A clear, standardized, top-down procedure allows for potentially benchmarking and comparing results across regions and sites. However, this comes at the cost of system specificity. As the top-down methods often have low stakeholder involvement, the application and implementation of the results might be difficult. Our analysis suggests that to include the aspects mentioned above in agricultural sustainability assessment, the bottom-up, integrated participatory or transdisciplinary methods are the most suitable ones.

Binder, Claudia R., E-mail: claudia.binder@geo.uzh.c [Social and Industrial Ecology, Department of Geography, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland); Institute for System Science, Innovation and Sustainability Research, University of Graz (Austria); Feola, Giuseppe [Social and Industrial Ecology, Department of Geography, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland); Steinberger, Julia K. [Social and Industrial Ecology, Department of Geography, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland); Institute of Social Ecology, Faculty for Interdisciplinary Studies, University of Klagenfurt, Schottenfeldgasse 29, A-1070 Vienna (Austria)

2010-02-15T23:59:59.000Z

290

Testing Minimal Universal Extra Dimensions Using Higgs Boson Searches at the LHC  

E-Print Network (OSTI)

Large Hadron Collider (LHC) searches for the SM Higgs boson provide a powerful limit on models involving Universal Extra Dimensions (UED) where the Higgs production is enhanced. We have evaluated all one-loop diagrams for Higgs production from gluon fusion and decay to two photons within "minimal" UED (mUED), independently confirming previous results, and we have evaluated enhancement factors for Higgs boson production and decay over the mUED parameter space. Using these we have derived limits on the parameter space, combining data from both ATLAS and CMS collaborations for the most recent 7 TeV and 8 TeV LHC data. We have performed a rigorous statistical combination of several Higgs boson search channels which is important because mUED signatures from the Higgs boson are not universally enhanced. We have found that 1/R 1000 GeV) around m_h = 118 GeV are left. The latter is likely to be excluded as more data becomes available whereas the region around 125 GeV is where the recently discovered Higgs-like particle was observed and therefore where the exclusion limit is weaker. It is worth stressing that mUED predicts an enhancement for all channels for Higgs production by gluon fusion and decay while the vector boson fusion process WW/ZZ -> h -> AA is generically suppressed and WW/ZZ -> h -> WW*/ZZ* is standard. Therefore, as more 8 TeV LHC data becomes available, the information on individual Higgs boson production and decay processes provided by the CMS and ATLAS experiments can be effectively used to favour mUED or exclude it further.

Genevieve Belanger; Alexander Belyaev; Matthew Brown; Mitsuru Kakizaki; Alexander Pukhov

2012-07-03T23:59:59.000Z

291

Predicting Pattern Tooling and Casting Dimensions for Investment Casting, Phase III  

Science Conference Proceedings (OSTI)

Efforts during Phase III focused mainly on the shell-alloy systems. A high melting point alloy, 17-4PH stainless steel, was considered. The experimental part of the program was conducted at ORNL and commercial foundries, where wax patterns were injected, molds were invested, and alloys were poured. Shell molds made of fused-silica and alumino-silicates were considered. A literature review was conducted on thermophysical and thermomechanical properties alumino-silicates. Material property data, which were not available from material suppliers, was obtained. For all the properties of 17-4PH stainless steel, the experimental data available in the literature did not cover the entire temperature range necessary for process simulation. Thus, some material properties were evaluated using ProCAST, based on CompuTherm database. A comparison between the predicted material property data and measured property data was made. It was found that most material properties were accurately predicted only over several temperature ranges. No experimental data for plastic modulus were found. Thus, several assumptions were made and ProCAST recommendations were followed in order to obtain a complete set of mechanical property data at high temperatures. Thermal expansion measurements for the 17-4PH alloy were conducted during heating and cooling. As a function of temperature, the thermal expansion for both the alloy and shell mold materials showed different evolution on heating and cooling. Numerical simulations were performed using ProCAST for the investment casting of 17-4PH stainless steel parts in fused silica molds using the thermal expansion obtained on heating and another one with thermal expansion obtained on cooling. Since the fused silica shells had the lowest thermal expansion properties in the industry, the dewaxing phase, including the coupling between wax-shell systems, was neglected. The shell mold was considered to be a pure elastic material. The alloy dimensions were obtained from numerical simulations. For 17-4PH stainless steel parts, the alloy shrinkage factors were over-predicted, as compared with experimental data. Additional R&D focus was placed on obtaining material property data for filled waxes, waxes that are common in the industry. For the first time in the investment casting industry, the thermo-mechanical properties of unfilled and filled waxes were measured. Test specimens of three waxes were injected at commercial foundries. Rheometry measurement of filled waxes was conducted at ORNL. The analysis of the rheometry data to obtain viscoelastic properties was not completed due to the reduction in the budget of the project (approximately 50% funds were received).

Sabau, Adrian S [ORNL

2008-04-01T23:59:59.000Z

292

Asymptotic of the largest and typical dimensions of isotypic components of tensor representations of the symmetric group  

E-Print Network (OSTI)

Vershik and Kerov in \\cite{VK85} gave asymptotical bounds for the maximal and typical dimensions of the irreducible representations of the symmetric group. It was conjectured by Grigori Olshanski that the maximal and typical dimensions of the isotypical components of the representations in the base of Schur-Weyl duality accept similar asymptotical bounds. Using the method of Vershik and Kerov the conjecture of Grigori Olshanski is proven in this paper. More precisely, consider the tensor representation of the symmetric group on $N$ letters on the space $(C^r)^{\\tensor N}$. The isotypical components of this representation are parametrized by Young diagrams with $N$ cells and at most $r$ rows, and the relative dimensions of these components give rise to a measure on the set of such Young diagrams. Philippe Biane in \\cite{Biane2001} found the limit shape of a typical Young diagram with respect to this measure in the limit when $N$ grows and $\\sqrt{N}/r$ converges to a constant. By showing that this limit shape i...

Mkrtchyan, Sevak

2010-01-01T23:59:59.000Z

293

Estimate of the allowable dimensions of diagnosed defects in category III and IV welded pipeline joints{sup 1}  

SciTech Connect

An approach for estimating the permissible dimensions of technological defects in butt welded joints in category III and IV pipelines is described. The allowable size of a welding defect is determined from the condition of compliance with the specifications on strength for a reference cross section (damaged joint) of the pipeline taking into account its weakening by a given defect.With regard to the fairly widespread discovery of technological defects in butt welded joints during diagnostics of auxiliary pipelines for thermal electric power plants, the proposed approach can be used in practice by repair and consulting organizations.

Grin', E. A.; Bochkarev, V. I. [JSC 'All-Russia Thermal Engineering Institute' (JSC 'VTI') (Russian Federation)] [JSC 'All-Russia Thermal Engineering Institute' (JSC 'VTI') (Russian Federation)

2013-01-15T23:59:59.000Z

294

Any l-state solutions of the Woods-Saxon potential in arbitrary dimensions within the new improved quantization rule  

E-Print Network (OSTI)

The approximated energy eigenvalues and the corresponding eigenfunctions of the spherical Woods-Saxon effective potential in $D$ dimensions are obtained within the new improved quantization rule for all $l$-states. The Pekeris approximation is used to deal with the centrifugal term in the effective Woods-Saxon potential. The inter-dimensional degeneracies for various orbital quantum number $l$ and dimensional space $D$ are studied. The solutions for the Hulth\\'{e}n potential, the three-dimensional (D=3), the $% s$-wave ($l=0$) and the cases are briefly discussed.

Sameer M/ Ikhdair; Ramazan Sever

2010-09-26T23:59:59.000Z

295

A Renormalized perturbation theory for problems with nontrivial boundary conditions or backgrounds in two space-time dimensions  

E-Print Network (OSTI)

In this paper we discuss the effects of nontrivial boundary conditions or backgrounds, including non-perturbative ones, on the renormalization program for systems in two dimensions. Here we present an alternative renormalization procedure such that these non-perturbative conditions can be taken into account in a self-contained and, we believe, self-consistent manner. These conditions have profound effects on the properties of the system, in particular all of its $n$-point functions. To be concrete, we investigate these effects in the $\\lambda \\phi^4$ model in two dimensions and show that the mass counterterms turn out to be proportional to the Green's functions which have nontrivial position dependence in these cases. We then compute the difference between the mass counterterms in the presence and absence of these conditions. We find that in the case of nontrivial boundary conditions this difference is minimum between the boundaries and infinite on them. The minimum approaches zero when the boundaries go to i...

Moazzemi, Reza

2008-01-01T23:59:59.000Z

296

EERE PROJECT MANAGEMENT CENTER NFPA DFTFRJ.llNATION RECIPIENT:Growth Dimensions for Belvidere and Boone County Inc.  

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

OFFNERGY OFFNERGY EERE PROJECT MANAGEMENT CENTER NFPA DFTFRJ.llNATION RECIPIENT:Growth Dimensions for Belvidere and Boone County Inc. PROJEcr TITLE: Biobased Materials Automotive Value Chain Market Development Analysis Page 1 of2 STATE: IL Funding Opportunity Announcement Number Procurement Instrument Numbu NEPA Control Number CID Number COP DE-FG36-04G014231 GF()..G014231-0Q9 G014231 Based on my review of the information concerning the proposed action, as NEPA Compliance Officer (authorized under DOE Order 45I.1A). I have made the following determination: ex, EA, EIS APPENDIX AND NUMBER: Description: A9 Information gathering (including, but 001 limited la, literature surveys, inventories. audits), data analysis (including computer modeling), document preparation (such as conceptual design Of feasibility studies, analytical energy supply and

297

Survey of Morphologies Formed in the Wake of an Enslaved Phase-Separation Front in Two Dimensions  

E-Print Network (OSTI)

A phase-separation front will leave in its wake a phase-separated morphology that differs markedly from homogeneous phase-separation morphologies. For a purely diffusive system such a front, moving with constant velocity, will generate very regular, non-equilibrium structures. We present here a numerical study of these fronts using a lattice Boltzmann method. In two dimensions these structures are regular stripes or droplet arrays. In general the kind and orientation of the selected morphology and the size of the domains depends on the speed of the front as well as the composition of the material overtaken by the phase-separation front. We present a survey of morphologies as a function of these two parameters. We show that the resulting morphologies are initial condition dependent. We then examine which of the potential morphologies is the most stable. An analytical analysis for symmetrical compositions predicts the transition point from orthogonal to parallel stripes.

E. M. Foard; A. J. Wagner

2011-03-28T23:59:59.000Z

298

A Renewal Theorem for Strongly Ergodic Markov Chains in Dimension $d\\geq3$ and Centered Case  

E-Print Network (OSTI)

In dimension $d\\geq3$, we present a general assumption under which the renewal theorem established by Spitzer for i.i.d. sequences of centered nonlattice r.v. holds true. Next we appeal to an operator-type procedure to investigate the Markov case. Such a spectral approach has been already developed by Babillot, but the weak perturbation theorem of Keller and Liverani enables us to greatly weaken thehypotheses in terms of moment conditions. Our applications concern the v$-geometrically ergodic Markov chains, the $\\rho$-mixing Markov chains, and the iterative Lipschitz models, for which the renewal theorem of the i.i.d. case extends under the (almost) expected moment condition.

Guibourg, Denis

2010-01-01T23:59:59.000Z

299

Constraints on Lorentz Invariance Violating Quantum Gravity and Large Extra Dimensions Models using High Energy Gamma Ray Observations  

E-Print Network (OSTI)

Observations of the multi-TeV spectra of the nearby BL objects Mkn 421 and Mkn 501 exhibit the high energy cutoffs predicted to be the result of intergalactic annihilation interactions, primarily with infrared photons having a flux level as determined by various astronomical observations. After correction for this absorption effect, the derived intrinsic spectra of these multi-TeV sources can be explained within the framework of simple synchrotron self-Compton emission models. Stecker and Glashow have shown that the existence of such annihilations via electron-positron pair production interactions up to an energy of 20 TeV puts strong constraints on Lorentz invariance violation. Such constraints have important implications for Lorentz invariance violating (LIV) quantum gravity models as well as LIV models involving large extra dimensions. We also discuss the implications of observations of high energy ?-rays from the Crab Nebula on constraining quantum gravity models.

F. W. Stecker

2003-01-01T23:59:59.000Z

300

A new renormalization approach to the Dirichlet Casimir effect for $\\phi^{4}$ theory in (1+1) dimensions  

E-Print Network (OSTI)

The next to the leading order Casimir effect for a real scalar field, within $\\phi^4$ theory, confined between two parallel plates is calculated in one spatial dimension. Here we use the Green's function with the Dirichlet boundary condition on both walls. In this paper we introduce a systematic perturbation expansion in which the counterterms automatically turn out to be consistent with the boundary conditions. This will inevitably lead to nontrivial position dependence for physical quantities, as a manifestation of the breaking of the translational invariance. This is in contrast to the usual usage of the counterterms, in problems with nontrivial boundary conditions, which are either completely derived from the free cases or at most supplemented with the addition of counterterms only at the boundaries. We obtain \\emph{finite} results for the massive and massless cases, in sharp contrast to some of the other reported results. Secondly, and probably less importantly, we use a supplementary renormalization pro...

Moazzemi, Reza

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brakes dimensions wheelbase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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301

String models of glueballs and the spectrum of SU(N) gauge theories in 2+1 dimensions  

E-Print Network (OSTI)

The spectrum of glueballs in 2+1 dimensions is calculated within an extended class of Isgur-Paton flux tube models and is compared to lattice calculations of the low-lying SU(N) glueball mass spectra. Our modifications of the model include a string curvature term and different ways of dealing with the flux tube width. We find that the generic model is remarkably successful at reproducing the positive charge conjugation, C=+, sector of the spectrum. The only large (and robust) discrepancy involves the 0-+ state. This raises the interesting possibility that the lattice spin identification is mistaken and that this state is in fact 4-+. In addition, the Isgur-Paton model does not incorporate any mechanism for splitting C=+ from C=- (in contrast to the case in 3+1 dimensions), while the `observed' spectrum shows a substantial splitting. We explore several modifications of the model in an attempt to incorporate this physics in a natural way. At the qualitative level we find that this constrains our choice to a picture in which the C=+/- splitting is driven by mixing with new states built on closed loops of adjoint flux. However a detailed numerical comparison suggests that a model incorporating an additional direct mixing between loops of opposite orientation is likely to work better; and that, in any case, a non-zero curvature term will be required. We also point out that a characteristic of any string model of glueballs is that the SU(N=infinity) mass spectrum will consist of multiple towers of states that are scaled up copies of each other. To test this will require a lattice mass spectrum that extends to somewhat larger masses than currently available.

Robert W. Johnson; Michael J. Teper

2000-12-21T23:59:59.000Z

302

Two-loop soft anomalous dimensions for single top quark associated production with a W{sup -} or H{sup -}  

SciTech Connect

I present results for the two-loop soft anomalous dimensions for associated production of a single top quark with a W boson or a charged Higgs boson. The calculation uses expressions for the massive cusp anomalous dimension, which are presented in different forms, and it allows soft-gluon resummation at next-to-next-to-leading-logarithm (NNLL) accuracy. From the NNLL resummed cross section I derive approximate NNLO cross sections for bg{yields}tW{sup -} and bg{yields}tH{sup -} at LHC energies of 7, 10, and 14 TeV.

Kidonakis, Nikolaos [Kennesaw State University, Physics no. 1202, 1000 Chastain Road, Kennesaw, Georgia 30144-5591 (United States)

2010-09-01T23:59:59.000Z

303

www.eia.gov  

U.S. Energy Information Administration (EIA)

"MSN","YYYYMM","Value","Column_Order","Description","Unit" "PCMIRUS",197313,9884,1,"Light-Duty Vehicles , Short Wheelbase, Mileage","Miles per Vehicle" ...

304

NIST Global Standards Information WTO TBT Inquiry Point  

Science Conference Proceedings (OSTI)

... In MY 2011, all manufacturers would be required ... product of multiplying a vehicle's wheelbase by ... Vehicles would be divided into footprint categories ...

305

Solid-State Selective 13C Excitation and Spin Diffusion NMR to Resolve Spatial Dimensions in Plant Cell Walls  

Science Conference Proceedings (OSTI)

The average spatial dimensions between major biopolymers within the plant cell wall can be resolved using a solid-state NMR technique referred to as a {sup 13}C cross-polarization (CP) SELDOM (selectively by destruction of magnetization) with a mixing time delay for spin diffusion. Selective excitation of specific aromatic lignin carbons indicates that lignin is in close proximity to hemicellulose followed by amorphous and finally crystalline cellulose. {sup 13}C spin diffusion time constants (T{sub SD}) were extracted using a two-site spin diffusion theory developed for {sup 13}C nuclei under magic angle spinning (MAS) conditions. These time constants were then used to calculate an average lower-limit spin diffusion length between chemical groups within the plant cell wall. The results on untreated {sup 13}C enriched corn stover stem reveal that the lignin carbons are, on average, located at distances {approx}0.7-2.0 nm from the carbons in hemicellulose and cellulose, whereas the pretreated material had larger separations.

Foston, M.; Katahira, R.; Gjersing, E.; Davis, M. F.; Ragauskas, A. J.

2012-02-15T23:59:59.000Z

306

Limitations of ad hoc "SKA+VLBI" configurations & the need to extend SKA to trans-continental dimensions  

E-Print Network (OSTI)

The angular resolution of the proposed Square Kilometre Array, SKA, must be extended towards the milliarcsecond scale if it is to resolve the distant starburst galaxies that are likely to dominate the radio source counts at micro and sub-microJy flux levels. This paper considers the best way of extending SKA's angular resolution towards the milliarcsecond scale. Two possible SKA-VLBI configurations have been investigated and simulated SKA and SKA-VLBI visibility data sets generated. The effects of non-uniform data weighting on the associated images are considered. The results suggest that the preferred option is for SKA to be extended to trans-continental dimensions. By retaining 50% of the array's collecting area within a region no larger than 50 km, the surface brightness sensitivity of the array at arcsec resolution is hardly compromised. In this configuration SKA's capabilities are impressive: in a single 12 hour run, between 100-1000 sources will be simultaneously detected and imaged with arcsecond, sub-arcsecond and milliarcsecond resolution.

M. A. Garrett

1999-08-31T23:59:59.000Z

307

Enhancement of Loop induced 125GeV Higgs pair production through Large-Extra-Dimensions model at the LHC  

E-Print Network (OSTI)

Based on the analysis of 5 fb^-1 of data at the LHC, the ATLAS and CMS collaborations have presented evidence for a Higgs boson with a mass in the 125 GeV range. We consider the 125 GeV neutral Higgs pair production process in the context of large-extra-dimensions(LED) model including the Kaluza-Klein(KK) excited gravitons at the LHC. We take into account the LED effects coming from gluon-gluon fusion and quark-antiquark collision channels as well as their corresponding next-to-leading order(NLO) QCD loop induced corrections. We analyse their impacts on both the total cross section and some key distributions. Indeed,pp -> HH has the clear advantage of a lower standard model(SM) background compare to process like pp -> jj, though its SM prediction is very small, it is shown that the LED model raises the cross section of Higgs pair production compare to its SM prediction and enhance the transverse momentum(pHT) and invariant mass(MHH) Distributions especially at high scales of pH T and MHH. By including the NLO QCD loop corrections, the scale dependence of total cross section can be reduced obviously. Choose suitable decay modes like HH -> bbrr or HH -> bbmumu and some simple cuts, we can strongly reduce the SM background but keep most of the LED effects, leading Higgs pair production a promising channel to search LED effects.

Hao Sun; Ya-Jin Zhou

2012-11-27T23:59:59.000Z

308

Constraints on large-extra-dimensions model through 125 GeV Higgs pair production at the LHC  

E-Print Network (OSTI)

Based on the analysis of 5 fb^-1 of data at the LHC, the ATLAS and CMS collaborations have presented evidence for a Higgs boson with a mass in the 125 GeV range. We consider the 125 GeV neutral Higgs pair production process in the context of large-extra-dimensions (LED) model including the Kaluza-Klein (KK)excited gravitons at the LHC. We consider the standard model(SM) Higgs pair production in gluon-gluon fusion channel and pure LED effects through graviton exchange as well as their interferences. It is shown that such interferences should be included; the LED model raises the transverse momentum (Pt)and invariant mass (M_HH) distributions at high scales of Pt and M_HH of the Higgs pair production. By using the Higgs pair production we could set the discovery limit on the cutoff scale M_S up to 6 TeV for delta = 2 and 4.5 TeV for delta = 6.

Hao Sun; Ya-Jin Zhou; He Chen

2012-11-22T23:59:59.000Z

309

Declassification: Dimensions and principles  

Science Conference Proceedings (OSTI)

Computing systems often deliberately release (or declassify) sensitive information. A principal security concern for systems permitting information release is whether this release is safe: is it possible that the attacker compromises the information ... Keywords: Information flow, declassification

Andrei Sabelfeld; David Sands

2009-10-01T23:59:59.000Z

310

Mechanical and Regenerative Braking Integration for a Hybrid Electric Vehicle.  

E-Print Network (OSTI)

??Hybrid electric vehicle technology has become a preferred method for the automotive industry to reduce environmental impact and fuel consumption of their vehicles. Hybrid electric (more)

DeMers, Steven Michael

2008-01-01T23:59:59.000Z

311

Customer Side Monitoring at an Automobile Brake Manufacturer  

Science Conference Proceedings (OSTI)

This customer-side monitoring project correlated distribution-related power quality (PQ) events with customer-side events and vice-versa and characterized equipment sensitivity to voltage variations. It also characterized overall levels of PQ on the feeder and in the facility and compared these levels with the national baseline sample being gathered for the Distribution Power Quality project.

2003-12-31T23:59:59.000Z

312

Magnetite Formation Observed with TEM on Brake Discs  

Science Conference Proceedings (OSTI)

Carbothermal Production of Zrb2-Zro2 Composite Powder from Zro2-B2O3/B System by ... Lignocellulosic-Based Carbon Fibers from Biofuel Production Wastes.

313

NREL: Continuum Magazine - Putting On the Brakes to Protect America...  

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

beyond. Sustainable Transportation Reaches Across-and Beyond-Parks A photo of three propane buses parked on asphalt road in treed park setting with stone cliffs in the...

314

Critical scaling dimension of D-module representations of N=4,7,8 superconformal algebras and constraints on superconformal mechanics  

Science Conference Proceedings (OSTI)

At critical values of the scaling dimension {lambda}, supermultiplets of the global N-extended one-dimensional supersymmetry algebra induce D-module representations of finite superconformal algebras (the latters being identified in terms of the global supermultiplet and its critical scaling dimension). For N=4,8 and global supermultiplets (k,N,N-k), the exceptional superalgebras D(2, 1;{alpha}) are recovered for N=4, with a relation between {alpha} and the scaling dimension given by {alpha}= (2 -k){lambda}. For N=8 and k{ne} 4 all four N=8 finite superconformal algebras are recovered, at the critical values {lambda}{sub k}=(1/k-4), with the following identifications: D(4, 1) for k= 0, 8, F(4) for k= 1, 7, A(3, 1) for k= 2, 6 and D(2, 2) for k= 3, 5. The N=7 global supermultiplet (1, 7, 7, 1) induces, at {lambda}=-(1/4), a D-module representation of the exceptional superalgebra G(3). D-module representations are applicable to the construction of superconformal mechanics in a Lagrangian setting. The isomorphism of the D(2, 1;{alpha}) algebras under an S{sub 3} group action on {alpha}, coupled with the relation between {alpha} and the scaling dimension {lambda}, induces non-trivial constraints on the admissible models of N=4 superconformal mechanics. The existence of new superconformal models is pointed out. For example, coupled (1, 4, 3) and (3, 4, 1) supermultiplets generate an N=4 superconformal mechanics if {lambda} is related to the golden ratio. The relation between classical versus quantum D-module representations is presented.

Khodaee, Sadi; Toppan, Francesco [CBPF, Rua Dr. Xavier Sigaud 150, Urca, cep 22290-180, Rio de Janeiro (RJ) (Brazil)

2012-10-15T23:59:59.000Z

315

The Substantive Validity of Work Performance Measures: Implications for Relationships Among Work Behavior Dimensions and Construct-Related Validity  

E-Print Network (OSTI)

Performance measurement and criterion theory are critical topics in the fields of I/O psychology, yet scholars continue to note several issues with the criterion, including empirically redundant behaviors, construct and measure proliferation, and definitions that conflict. These interconnected problems hinder the advancement of criterion measurement and theory. The goal of this study was to empirically examine the issues of theory/construct clarity and measurement as they exist regarding work performance behaviors. This study's first objective was to clarify definitions of core performance behaviors, particularly to resolve issues of construct proliferation and conceptual conflict. Universal definitions of four core criterion constructs (i.e., task performance, citizenship performance, counterproductive work behavior, and withdrawal) were developed that integrated existing definitions of similar behaviors. Each definition reflects a parsimonious conceptualization of existing performance behaviors, which serves to clarify existing, and at times divergent, criterion conceptualizations. Importantly, these integrated definitions represent commonly-held definitions of the constructs and replace the largely discrepant accumulation of definitions. The second objective was to determine whether existing items assumed to measure the four core work performance behaviors were judged by raters to represent their respective constructs. The results showed that of the 851 items examined, over half were judged to not represent their respective constructs which, importantly, replicated previous research. Additionally, the results highlight items that match their respective construct definition and contain minimal overlap with non-posited constructs. Finally, the third objective was to determine the implications of using the problematic items for both the empirical relationships among work performance behaviors and evidence of construct-related validity. The results provided preliminary evidence that while nomological networks are minimally affected, relationships among some work performance dimensions are significantly affected when problematic items are removed from measures of performance constructs. This dissertation demonstrated the need for more attention to the construct labels placed on the behaviors described in work performance items, as there are potentially adverse consequences for theory and measurement. Ultimately, the results of this study showed that work performance behaviors/items have often been assigned incorrect construct labels which, subsequently, may cast considerable doubt on the theoretical and empirical understanding of the criterion domain.

Carpenter, Nichelle

2012-08-01T23:59:59.000Z

316

A Framework for Re-Purposing Textbooks Using Learning Outcomes/Methodology, Device Characteristics, Representation and User Dimensions  

E-Print Network (OSTI)

As digital books begin to take center stage in our lives the importance of the old printed book still lingers on. A large number of the books printed on the paper media still have much to offer to readers for various reasons (e.g. less famous authors of prose, old books with interesting and original problems). To help individuals in digitizing and reusing their physical and digital books we decided to build a framework that will help people convert physical and digital books to other formats taking into consideration four dimensions: learning outcomes or methodology, target device characteristics, representation and the user. Our focus is on textbooks in history. Consequently, we do not consider some problems like math formulas. This work has the potential of helping people deal with the huge backlog of physical books that can become invisible as the digital books take off. To show that our platform can help in repurposing books for student study activities, we have developed some transformations. The transformations we have implemented shows that the framework can be used to add study aids to books, optimize books for a target platform (e-reader device and application combination), and supplement available features of a target platform and maintain consistency across various audio/visual devices and e-book formats. One of the important steps in the thesis was determining the study activities that we would support as examples in our implementation. We have chosen to implement support for the survey, question, read and review activities of the SQ3R reading technique. We have also implemented support for additional activities like search. The chosen activities and the support implemented for these activities are examples and are not meant to be complete. Another important decision point was to decide which target platforms (e-reader device and application combination) we need to support. We decided to choose a few representatives and leave the rest as future work. The target devices were selected so as to have a variety of device capabilities like screen size, display technology (e.g. e-ink, VGA), and user interaction styles (e.g. touch-based, button based) combined with application capabilities (e.g. audio only, visual only, audio visual, grayscale, and color). The devices selected were: iPad, iPod, iPhone, Kindle 3rd generation, Kindle Fire, Sony PRS and a laptop. The e-reader applications are the ones that are available for these devices.

Ciftci, Tolga

2013-05-01T23:59:59.000Z

317

Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector  

E-Print Network (OSTI)

A search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at sqrt(s)=7 TeV with the ATLAS experiment at the Large Hadron Collider. Four kinematic regions are explored using a dataset corresponding to an integrated luminosity of 4.7 inverse femtobarn. No excess of events beyond expectations from Standard Model processes is observed, and limits are set on large extra dimensions and the pair production of dark matter particles.

The ATLAS Collaboration

2012-10-16T23:59:59.000Z

318

The effect of a fifth large-scale space-time dimension on the conservation of energy in a four dimensional Universe  

E-Print Network (OSTI)

The effect of introducing a fifth large-scale space-time dimension to the equations of orbital dynamics was analysed in an earlier paper by the authors. The results showed good agreement with the observed flat rotation curves of galaxies and the Pioneer Anomaly. This analysis did not require the modification of Newtonian dynamics, but rather only their restatement in a five dimensional framework. The same analysis derived a acceleration parameter ar, which plays an important role in the restated equations of orbital dynamics, and suggested a value for ar. In this companion paper, the principle of conservation of energy is restated within the same five-dimensional framework. The resulting analysis provides an alternative route to estimating the value of ar, without reference to the equations of orbital dynamics, and based solely on key cosmological constants and parameters, including the gravitational constant, G. The same analysis suggests that: (i) the inverse square law of gravity may itself be due to the conservation of energy at the boundary between a four-dimensional universe and a fifth large-scale space-time dimension; and (ii) there is a limiting case for the Tulley-Fisher relationship linking the speed of light to the mass of the Universe.

M. B. Gerrard; T. J. Sumner

2007-04-03T23:59:59.000Z

319

The Braginskii model of the Rayleigh-Taylor instability. I. Effects of self-generated magnetic fields and thermal conduction in two dimensions  

E-Print Network (OSTI)

(abridged) There exists a substantial disagreement between computer simulation results and high-energy density laboratory experiments of the Rayleigh-Taylor instability Kuranz et al. (2010). We adopt the Braginskii formulation for transport in hot, dense plasma, implement and verify the additional physics modules, and conduct a computational study of a single-mode RTI in two dimensions with various combinations of the newly implemented modules. We find that magnetic fields reach levels on the order of 11 MG in the absence of thermal conduction. We observe denting of the RT spike tip and generation of additional higher order modes as a result of these fields. Contrary to interpretation presented in earlier work Nishiguchi (2002), the additional mode is not generated due to modified anisotropic heat transport effects but due to dynamical effect of self-generated magnetic fields. The main effects of thermal conduction are a reduction of the RT instability growth rate (by about 20% for conditions considered here)...

Modica, Frank; Zhiglo, Andrey

2013-01-01T23:59:59.000Z

320

Accuracy of EGSnrc calculations at {sup 60}Co energies for the response of ion chambers configured with various wall materials and cavity dimensions  

SciTech Connect

In this investigation, five experimental data sets are used to evaluate the ability of the EGSnrc Monte Carlo code to calculate the change in chamber response associated with changes in wall material and cavity dimension at {sup 60}Co energies. Calculations of the ratios of response per unit mass of air as a function of cavity volume for walls ranging from polystyrene to lead are generally within 1%-3% of experiments. A few exceptions, which are discussed, include 20%-30% discrepancies with experiments involving lead-walled chambers used by Attix et al. [J. Res. Natl. Bur. Stand. 60, 235-243 (1958)] and Cormack and Johns [Radiat. Res. 1, 133-157 (1954)], and 5% discrepancies for the graphite chamber of Attix et al. (relative to data for other wall materials). Simulations of the experiment by Whyte [Radiat. Res. 6, 371-379 (1957)], which varied cavity air pressure in a large cylindrical chamber, are generally within 0.5% (wall/electrode materials ranging from beryllium to copper). In all cases, the agreement between measurements and EGSnrc calculations is much better when the response as a function of cavity height or air pressure is considered for each wall material individually. High-precision measurements [Burns et al., Phys. Med. Biol. 52, 7125-7135 (2007)] of the response per unit mass as a function of cavity height for a graphite chamber are also accurately reproduced, and validate previous tests of the transport mechanics of EGSnrc. Based on the general agreement found in this work between corresponding experimental results and EGSnrc calculations it can be concluded that EGSnrc can reliably be used to calculate changes in response with changes in various wall materials and cavity dimensions at {sup 60}Co energies within a accuracy of a few percent or less.

La Russa, Daniel J.; Rogers, D. W. O. [Carleton Laboratory for Radiotherapy Physics, Ottawa Carleton Institute of Physics, Carleton University Campus, Ottawa, Ontario K1S 5B6 (Canada)

2008-12-15T23:59:59.000Z

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


321

Morale: definitions, dimensions and measurement  

E-Print Network (OSTI)

am very grateful to my supervisor, Philip Stiles, for his unstinting support throughout both this research and the MBA and MPhil which preceded it. He was in turn supported by Annick Stiles who kindly reviewed the statistics for me. I am indebted... of different research sites. I am grateful to Penny Bugden, Denise Clements, Richard Dellabarca, Stephen England-Hall, Nerys Evans, Sue Gibson, Kate Hartigan, Caroline Hulks, Helen Ives, Sian Jeffrey, Carole Manship, Tom Ogilvie, Adrian Roberts, Garret...

Hardy, Ben

2010-04-13T23:59:59.000Z

322

Physics with large extra dimensions  

Science Conference Proceedings (OSTI)

scale, the KK excitations of gauge bosons and other standard model (sM) parti- ..... symmetry is broken by the vacuum expectation values of two Higgs doublets,

323

The Local Dimension of Energy  

E-Print Network (OSTI)

expensiveforoneentitytoconsideritalone.In Swedenduringtheearly 1970s, DH networks were heavily dependent on fossil fuels but now over seventy percentoffuelforDHcomesfromrenewablefeedstockssuchasbiomassandmunicipal waste.InFinland,asidefromasmall... made by successful local governments can be narrowed to three key factors. First, they have all recognised the co-benefits of a local energy strategy: a reduction in fuel poverty, increased employment, improved quality of life and mitigation...

Kelly, Scott

2011-01-31T23:59:59.000Z

324

Nuclear War. The moral dimension  

SciTech Connect

U.S. nuclear policy has become the target of increasing criticism during the past decade. Critics often argue that the use of nuclear weapons would be irrational, would destroy humankind, and thus could not serve any rational policy goal. Other critics point to the immortality of the use of nuclear weapons. Both groups condemn U.S. military policy. In Nuclear War, James Child considers and rejects both these lines of criticism. He argues that a policy of deterrence can be both rational and moral; that U.S. nuclear policy is, on balance, based on rational and moral foundations. Child examines near-term consequences of a nuclear war and finds them ghastly but not unthinkable or incomparable to the havoc produced by previous wars. He also analyzes long-term consequences, such as those proposed by the ''nuclear winter'' theory, and finds the fear of total annihilation of humankind to be unfounded.

Child, J.W.

1985-01-01T23:59:59.000Z

325

Dimensions of Wellness Staying Well  

E-Print Network (OSTI)

include Rohypnol, Seconal, Valium, Librium, and Xanax. Long term effects include: dependency, psychosis one sending cards, cooking meals, buying flowers or rearranging your schedule. Don't continue to give

Fernandez, Eduardo

326

California Agriculture: Dimensions and Issues  

E-Print Network (OSTI)

Agriculture 1959. California, Vol. 1, Part 48. ----------.of Population, California, Vol. 1, Part 6. ----------. 1990Vol. 12, No. 67, 1888. California Committee to Survey the

Siebert,, Jerome Editor

2003-01-01T23:59:59.000Z

327

Measurement of groove features and dimensions of the vertical test cathode and the choke joint of the superconducting electron gun cavity of the Energy Recovery LINAC  

Science Conference Proceedings (OSTI)

A testing program for the superconducting electron gun cavity that has been designed for the Energy Recovery LINAC is being planned. The goal of the testing program is to characterize the RF properties of the gun cavity at superconducting temperatures and, in particular, to study multipacting that is suspected to be occurring in the choke joint of the cavity where the vertical test cathode is inserted. The testing program will seek to understand the nature and cause of this multipacting and attempt to eliminate it, if possible, by supplying sufficient voltage to the cavity. These efforts are motivated by the multipacting issues that have been observed in the processing of the fine-grain niobium gun cavity. This cavity, which is being processed at Thomas Jefferson National Laboratory for Brookhaven, has encountered multipacting at a gradient of approximately 3 MV/m and, to date, has resisted efforts at elimination. Because of this problem, a testing program is being established here in C-AD that will use the large-grain niobium gun cavity that currently resides at Brookhaven and has been used for room-temperature measurements. The large-grain and fine-cavities are identical in every aspect of construction and only differ in niobium grain size. Thus, it is believed that testing and conditioning of the large-grain cavity should yield important insights about the fine-grain cavity. One element of this testing program involves characterizing the physical features of the choke joint of the cavity where the multipacting is believed to be occurring and, in particular the grooves of the joint. The configuration of the cavity and the vertical test cathode is shown in Figure 1. In addition, it is important to characterize the groove of the vertical test cathode. The grooved nature of these two components was specifically designed to prevent multipacting. However, it is suspected that, because of the chemical processing that the fine-grain gun cavity underwent along with the vertical test cathode, the geometry of these grooves was altered, presenting the possibility that multipacting may, in fact, be occurring in this area and contributing to the low gradients that have been observed in the fine-grain cavity. Therefore, the Survey and Alignment group in C-AD engaged in measurements of the cavity joint, shown in Figure 2 and the cathode weldment, shown in Figure 3 for the purpose of characterizing the grooves in both the cavity and the vertical test cathode and comparing the dimensions of the cathode with those of the prints supplied by Advanced Energy Systems (AES), the original designer and manufacturer of both the test cathode and the electron gun cavity, in preparation to have a new one manufactured. The goal was to ensure that the articles as built matched the design prints in preparation for manufacturing a new vertical test cathode. This report describes the data collected by the Survey group in these efforts. The endeavor was challenging for the group given the millimeter-scale dimensions of the grooves and the requirement for high precision.

Hammons, L.; Ke, M.

2011-10-13T23:59:59.000Z

328

PRISM 2.0: Regional Energy and Economic Model Development and Initial Application: Phase 2: Electric Sector CO2 Reduction Options to 2050: Dimensions of Technology, Energy Costs, and Environmental Scenarios  

Science Conference Proceedings (OSTI)

EPRI conducted an analysis of electric sector CO2 reduction options to 2050 across a range of scenarios covering dimensions of technology costs and availability, energy costs, and CO2 constraints. Using its U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) model, EPRI calculated the impact of changes in generation portfolio, generation capacity, expenditures, and electricity prices on power sector costs. This analysis estimates different levels of ...

2013-11-06T23:59:59.000Z

329

PERFORMANCE STATISTICS WEIghTS  

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

2650 lbs 2650 lbs Delivered Curb Weight 9 : 2615 lbs Distribution F/R 9 (%): 58.6/41.4 GVWR: 3164 lbs GAWR F/R: 1797/1378lbs Payload 5 : 564 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 95.9 in Track F/R: 59.6/59.1 in Length: 160.6 in Width: 68.5 in Height: 54.9 in Ground Clearance: 5.3 in Performance Goal: 5.0 in TIRES Tire Mfg: Dunlop Tire Model: SP Sport 1000m Tire Size: 195 / 55 R16 86V Tire Pressure F/R: 30/30 psi Spare Installed: Yes ENgINE Model: 1.5 L I4 Output 8 : 122 hp @ 6000 rpm Configuration: Inline Four-cylinder Displacement: 1.5 L Fuel Tank Capacity: 10.6 gal Fuel Type: Unleaded Gasoline © 2010 Electric Transportation Applications All Rights Reserved VEhICLE FEATuRES Base Vehicle: 2011 Honda CRZ EX Hybrid VIN: JHMZF1C64BS002982

330

PERFORMANCE STATISTICS WEIghTS  

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

245 lbs 245 lbs Delivered Curb Weight: 4118 lbs GVWR: 5675 lbs GAWR F/R: 2865/3130 lbs Distribution F/R: 59/41 % Payload: 1557 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 106.7 in Track F/R: 61.9/61.1 in Length: 185.3 in Width: 71.5 in Height: 68.6 in Ground Clearance: 5.9 in Performance Goal: 5.0 in TIRES Tire Mfg: Goodyear Tire Model: Integrity Tire Size: P225/65R17 Tire Pressure F/R: 32/32 Spare Installed: Yes ENgINE Model: 3MZ-FE Output: 208 hp @ 5600 rpm Configuration: V6 Displacement: 3.3 L Fuel Tank Capacity: 17.2 gal Fuel Type: Unleaded Gasoline © 2010 Electric Transportation Applications All Rights Reserved VEhICLE FEATuRES Base Vehicle: 2006 Highlander VIN: JTEDW21A860005681 Seatbelt Positions: Seven Standard Features: Air Conditioning

331

untitled  

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

2723 lbs 2723 lbs Delivered Curb Weight: 2756 lbs Distribution F/R (%): 58/42 GVWR: 3630 lbs GAWR F/R: 1881/1782lbs Payload 5 : 907 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 100.4 in Track F/R: 58.7/58.1 in Length: 172.3 in Width: 66.7 in Height: 56.2 in Ground Clearance: 5.5 in Performance Goal: 5.0 in TIRES Tire Mfg: Dunlop Tire Model: SP31 A/S Tire Size: 175 / 65 R15 84S Tire Pressure F/R: 33/33 psi Spare Installed: Yes ENGINE Model: 1.3 L LDA series I4 Output: 98 hp @ 5800 rpm Configuration: Inline Four-cylinder Displacement: 1.3 L Fuel Tank Capacity: 10.6 gal Fuel Type: Unleaded Gasoline © 2009 Electric Transportation Applications All Rights Reserved VEHICLE FEATURES Base Vehicle: 2010 Honda Insight Hybrid VIN: JHMZE2H78AS010141 Seatbelt Positions: Five Standard Features:

332

untitled  

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

720 lbs 720 lbs Delivered Curb Weight: 3698 lbs Distribution F/R (%): 60.4/39.6 GVWR: 4701 lbs GAWR F/R: 2492/2209 lbs Payload 5 : 850 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 107.4 in Track F/R: 61.7/61.3 in Length: 190.6 in Width: 72.2 in Height: 56.9 in Ground Clearance: 7 in Performance Goal: 5.0 in TIRES Tire Mfg: Michelin Tire Model: Energy MXV4 SS Tire Size: P225/50VR17 Tire Pressure F/R: 33/33 psi Spare Installed: Yes ENGINE Model: 2.5L Atkinson Cycle Output: 156 hp @ 6000 rpm Configuration: Inline Four-cylinder Displacement: 2.5 L Fuel Tank Capacity: 17.5 gal Fuel Type: Unleaded Gasoline © 2009 Electric Transportation Applications All Rights Reserved VEHICLE FEATURES Base Vehicle: 2010 Ford Fusion Hybrid VIN: 3FADP0L34AR144757 Seatbelt Positions: Five

333

PERFORMANCE STATISTICS WEIghTS  

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

365 lbs 365 lbs Delivered Curb Weight: 4510 lbs Distribution F/R: 57/43 % GVWR: 5520 lbs GAWR F/R: 2865/2865 lbs Payload: 1010 lbs Performance Goal: 400 lbs DIMENSIONS Wheelbase: 107.0 inches Track F/R: 62/61.2 inches Length: 187.2 inches Width: 72.6 inches Height: 66.4 inches Ground Clearance: 7.1 inches Performance Goal: 5.0 inches TIRES Tire Mfg: Goodyear Tire Model: Eagle RS-A Tire Size: P215/55R18 Tire Pressure F/R: 30/30 psi Spare Installed: Yes ENgINE Model: 3MZ-FE Output: 208 hp @ 5600 rpm Configuration: DOHC V6 Displacement: 3.3 L Fuel Tank Capacity: 17.2 Gallons Fuel Type: Unleaded Gasoline © 2010 Electric Transportation Applications All Rights Reserved VEhICLE FEATuRES Base Vehicle: 2006 Lexus RX 400h VIN: JTJHW31U160002575 Seatbelt Positions: Five

334

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

E-Print Network (OSTI)

-mail: jdixon@ing.puc.cl *University of Concepción Abstract An ultracapacitor bank control system and decelerations of the vehicle with minimal loss of energy, and minimal degradation of the main battery pack. The system uses an IGBT Buck-Boost converter, which is connected to the ultracapacitor bank at the Boost side

Rudnick, Hugh

335

Equilibrium and Braking of Fully Avalanched Runaway Electron Currents: a New Disruption Mitigation Strategy for ITER  

E-Print Network (OSTI)

Bull. Am. Phys. Soc. 55, 334 (2010)52nd American Physical Society Annual Meeting of Division of Plasma Physics Chicago Illinois, US, 2010999618465

Parks, P.B.

2010-07-27T23:59:59.000Z

336

Pneumatic brake control for precision stopping of heavy-duty vehicles  

E-Print Network (OSTI)

stopping of a 40 foot CNG bus for the Bus Precision Dockingfor two different 40 foot CNG buses (c1 and c2). Althoughpressure of two different CNG buses (c1 and c2) speeds since

Bu, Fanping; Tan, Han-Shue

2007-01-01T23:59:59.000Z

337

Brake rotor design and comparison using finite element analysis : an investigation in topology optimization  

E-Print Network (OSTI)

and Rotor Figures . . . . . . . . . . . . . . . . . .Appendix D Unsatisfactory RotorAppendix G Supplemental Rotor Symmetrical Instance

Domond, Kenneth

2010-01-01T23:59:59.000Z

338

Experimental Verifi cation of Discretely Variable Compression Braking Control for Heavy Duty Vehicles: Final Report  

E-Print Network (OSTI)

Conference, 2002. [14] T.R. Fortescue, L.S. Kershenbaum, andscheme is proposed by Fortescue et al. [14] in which a time-

Vahidi, Ardalan; Stefanopoulou, Anna G.; Wang, Xiaoyong; Tsao, Tsu Chin

2004-01-01T23:59:59.000Z

339

Experimental Verification of Discretely Variable Compression Braking Control for Heavy Duty Vehicles  

E-Print Network (OSTI)

and Control, [11] T.R. Fortescue, L.S. Kershenbaum, and B.E.scheme is proposed by Fortescue et al. [11] in which a time-

Vahidi, Ardalan; Stefanopoulou, Anna G.; Farias, Phil; Tsao, Tsu Chin

2003-01-01T23:59:59.000Z

340

Design, Modeling And Control Of Steering And Braking For An Urban Electric Vehicle  

E-Print Network (OSTI)

service access to small electric cars. The research involvedservice access to small electric cars. The research involvedservice access to small electric cars. This concept has been

Maciua, Dragos

1996-01-01T23:59:59.000Z

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


341

Adaptive brake lights : an investigation into their relative benefits in regards to road safety.  

E-Print Network (OSTI)

??The implementation of In-Vehicle Intelligent Transport Systems (ITS) is becoming a common occurrence in modern vehicles. Automobile manufacturers are releasing vehicles with many forms of (more)

Roughan, Craig

2007-01-01T23:59:59.000Z

342

Experimental analysis of disc thickness variation development in motor vehicle brakes.  

E-Print Network (OSTI)

??Over the past decade vehicle judder caused by Disc Thickness Variation (DTV) has become of major concern to automobile manufacturers worldwide. Judder is usually perceived (more)

Rodriguez, C

2006-01-01T23:59:59.000Z

343

Gearing Up for Electric Cars  

E-Print Network (OSTI)

half the energy lost during braking (regenerative braking),regenerative braking energ~ durmg de- celeration A fl)wheel stores energy

Sperling, Daniel

1994-01-01T23:59:59.000Z

344

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

E-Print Network (OSTI)

accept all the regenerative braking energy. This paper isaccept all the regenerative braking energy. Figure 1 showsaccepts all the regenerative braking energy. In this mode, a

Burke, Andy; Zhao, Hengbing

2010-01-01T23:59:59.000Z

345

Transportation and its Infrastructure  

E-Print Network (OSTI)

systems, store regenerative braking energy and to operate2 emissions. However, regenerative braking energy cannot beas electrical energy if regenerative braking is available (

2007-01-01T23:59:59.000Z

346

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

and to capture regenerative braking energy, or a simplerto recapture regenerative braking energy over a modestto recapture regenerative braking energy and to meet vehicle

Lipman, Timothy Edward

1999-01-01T23:59:59.000Z

347

Implementing sustainability: the behavioral-institutional dimension  

SciTech Connect

Organizations, both public and private sector, are increasingly pursuing strategies to reduce their energy use and increase sustainability. Whether these efforts are based on economic rationale, community spirit, environmental ethics, federal mandates, or other reasons, they predominantly feature strategies that rely on new technologies. If there is any focus on behavior change, it is typically addressed to changing individual behavior. While we recognize the importanceand limitationsof the role of individual behavior in promoting sustainability goals, we are more interested in the role of institutional behavior. We have reviewed the small but growing literature on institutional behavior change, and have identified eight evidence-based principles as a guide for federal agencies to take action. This article presents the principles and illustrates them with examples to suggest ways that they can serve as models for others.

Malone, Elizabeth L.; Diamond, Rick C.; Wolfe, Amy K.; Sanquist, Thomas F.; Payne, Christopher T.; Dion, Jerry

2013-05-10T23:59:59.000Z

348

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

;3.6: Discussion 101 Table 3.10: Irregularity fraction. fracPA frac frack3,5/k1 fracany fracall (1) (2) (3) (4

Ginzel, Matthew

349

Scaling a code in the human dimension  

Science Conference Proceedings (OSTI)

As scientists' needs for computational techniques and tools grow, they cease to be supportable by software developed in isolation. In many cases, these needs are being met by communities of practice, where software is developed by domain scientists to ... Keywords: XSEDE proceedings, community, open source

Matthew J. Turk

2013-07-01T23:59:59.000Z

350

The Human Dimensions of Net Zero Buildings:  

Science Conference Proceedings (OSTI)

... Advanced Metering Initiatives and Residential Feedback Programs: A Meta ... the Rebound Effect with Energy Resource Management and People ...

2012-10-27T23:59:59.000Z

351

Figure 1. Corridor Facility, with Dimensions  

Science Conference Proceedings (OSTI)

... The floor is of brick laid on sand. ... If all the cribs for a given test have the same la-tight loss history as the centrally located crib, the total mass burning ...

2004-07-13T23:59:59.000Z

352

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

HVDC Transmission - An Overview S. K. Chaudhary Department of Energy Technology, Aalborg University - The paper gives an overview of HVAC and HVDC connection of wind farm to the grid, with an emphasis on Voltage Source Converter (VSC)-based HVDC for large wind farms requiring long distance cable connection

Ginzel, Matthew

353

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

along the distances analyzed here is likely to be high-voltage direct current (HVDC), as the electrical losses for AC cables over long distances indicate HVDC is favored for distances greater than 50-100 km, R. L. Hendriks, and R. Vailati (2007), HVDC connection of offshore wind farms to the transmission

Pittendrigh, Barry

354

Control of Dimensions, Finish, and Weight  

Science Conference Proceedings (OSTI)

...The breaker cam shown in Fig. 7 was made of 3.25/3.18 mm (0.128/0.125 in.) thick 1010 cold-rolled special-killed steel. Strips 86 mm (3 in.) wide and 2.4 m (96 in.) long with a maximum hardness of 65 HRB and a No. 2 bright finish were purchased....

355

Wave Mechanics and the Fifth Dimension  

E-Print Network (OSTI)

Replacing 4D Minkowski space by 5D canonical space leads to a clearer derivation of the main features of wave mechanics, including the wave function and the velocity of de Broglie waves. Recent tests of wave-particle duality could be adapted to investigate whether de Broglie waves are basically 4D or 5D in nature.

Paul S. Wesson; James M. Overduin

2013-01-28T23:59:59.000Z

356

Proton radius puzzle and large extra dimensions  

E-Print Network (OSTI)

We propose a theoretical scenario to solve the proton radius puzzle which recently arises from the muonic hydrogen experiment. In this framework, 4 + n dimensional theory is incorporated with modified gravity. The extra gravitational interaction between the proton and muon at very short range provides an energy shift which accounts for the discrepancy between spectroscopic results from muonic and electronic hydrogen experiments. Assuming the modified gravity is a small perturbation to the existing electromagnetic interaction, we find the puzzle can be solved with stringent constraint on the range of the new force. Our result not only provides a possible solution to the proton radius puzzle but also suggest a direction to test new physics at very small length scale.

Li-Bang Wang; Wei-Tou Ni

2013-03-20T23:59:59.000Z

357

Data Transmission in the Fourth Dimension  

E-Print Network (OSTI)

Alice wants to send an arbitrary binary word to Bob. We show here that there is no problem for her to do that with only two bits. Of course, we consider here information like a signal in 4D.

Serge Burckel

2007-11-02T23:59:59.000Z

358

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

, batteries, electro- magnetic shielding materials, artificial noses and muscles, solar cells, electrodes). The treatment of thiophene with butyl lithium provides 2,5-dilithiothiophene that can be polymerized with CuCl2 me- tallation of 15 with lithium diisopropylamide (LDA)[79,80] to generate 16. The organolithium

Ginzel, Matthew

359

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

- nauticalengineering,fromAnalyticalMechan- ics Association, Inc, $68,885, "Integrated Combustion Stability Analysis Assessment." Anderson, William E; aeronautical & astro- nautical engineering, from Missile Defense Agency, $6,490, "Unsteady Hydrodynamic Flows in Injector Passages and Combustion Characterization of Fine Hypergolic Sprays

Holland, Jeffrey

360

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

Sciences Corporation, $75,000, "Composite Missile Case Struc- tural Health Monitoring." Alexeenko of Combustion Dynamics in Low-Emission Systems; Supplement 2 for Grant 105385." Anderson, William E,000, "Measurement of Combustion Response to Transverse Modes at High Pressure-NSTRF Fellowship for Matt Wierman

Holland, Jeffrey

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


361

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

; aeronautical & astronautical engineering, from Missile Defense Agency, $325,609, "Unsteady Hydrodynamic Flows in Injector Passages and Combustion Characterization of Fine Hypergolic Sprays." Anderson, William E

Holland, Jeffrey

362

Born-Infeld gravity in three dimensions  

Science Conference Proceedings (OSTI)

In this paper we explore different aspects of three dimensional Born-Infeld as well as Born-Infeld-Chern-Simons gravity. We show that the models have anti-de Sitter and anti-de Sitter wave vacuum solutions. Moreover, we observe that although Born-Infeld-Chern-Simons gravity admits a logarithmic solution, Born-Infeld gravity does not, though it has a limiting logarithmic solution as we approach the critical point.

Alishahiha, Mohsen [School of physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Naseh, Ali [School of physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Department of Physics, Sharif University of Technology, P.O. Box 11365-9161, Tehran (Iran, Islamic Republic of); Soltanpanahi, Hesam [School of physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); School of Physics and Centre for Theoretical Physics, University of the Witwatersrand, WITS 2050 Johannesburg (South Africa)

2010-07-15T23:59:59.000Z

363

Random hyperplane projection using derived dimensions  

Science Conference Proceedings (OSTI)

Computing the similarity between data objects is a fundamental operation for many distributive applications such as those on the Word Wide Wed, in Peer-to-Peer networks or even in Sensor Networks. Locality Sensitive Hashing (LSH) has been recently proposed ... Keywords: locality sensitive hashing, sensor networks, similarity

Konstantinos Georgoulas; Yannis Kotidis

2010-06-01T23:59:59.000Z

364

Invariants to Convolution in Arbitrary Dimensions  

Science Conference Proceedings (OSTI)

Processing of multidimensional image data which were acquired by a linear imaging system of unknown point-spread function (PSF) is an important problem whose solution usually requires image restoration based on blind deconvolution (BD). Since BD is an ... Keywords: convolution invariants, linear system, moments, multidimensional imaging

Jan Flusser; Ji? Boldy; Barbara Zitov

2000-10-01T23:59:59.000Z

365

Anomalous dimensions of multiquark bound states  

SciTech Connect

The evolution of six-quark color-singlet state distribution amplitudes is formulated as an application of perturbative quantum chromodynamics to nuclear wave functions. We present a general method of solving the evolution equation for multiquark bound states and predict the asymptotic Q/sup 2/ slope for the deuteron charge form factor as a result.

Ji, C.R.

1986-07-01T23:59:59.000Z

366

Fundamental and composite scalars from extra dimensions  

E-Print Network (OSTI)

We discuss a scenario consisting of an effective 4D theory containing fundamental and composite fields. The strong dynamics sector responsible for the compositeness is assumed to be of extra dimensional origin. In the 4D effective theory the SM fermion and gauge fields are taken as fundamental fields. The scalar sector of the theory resembles a bosonic topcolor in the sense there are two scalar Higgs fields, a composite scalar field and a fundamental gauge-Higgs unification scalar. A detailed analysis of the scalar spectrum is presented in order to explore the parameter space consistent with experiment. It is found that, under the model assumptions, the acceptable parameter space is quite constrained. As a part of our phenomenological study of the model, we evaluate the branching ratio of the lightest Higgs boson and find that our model predicts a large FCNC mode h -> tc, which can be as large as O(10^{-3}). Similarly, a large BR for the top FCNC decay is obtained, namely B.R.(t -> c + H) \\simeq 10^{-4}

Alfredo Aranda; J. L. Diaz-Cruz; J. Hernandez-Sanchez; R. Noriega-Papaqui

2007-08-28T23:59:59.000Z

367

Implementing Sustainability: The Behavioral-Institutional Dimension  

Science Conference Proceedings (OSTI)

Organizations, both public and private sector, are increasingly pursuing strategies to reduce their energy use and increase sustainability. Whether these efforts are based on economic rationale, community spirit, environmental ethics, federal mandates, or other reasons, they predominantly feature strategies that rely on new technologies. If there is any focus on behavior change, it is typically addressed to changing individual behavior. While we recognize the importance and limitations of the role of individual behavior in promoting sustainability goals, we are more interested in the role of institutional behavior. We have reviewed the small but growing literature on institutional behavior change, and have identified eight evidence-based principles as a guide for federal agencies to take action. This article presents the principles and illustrates them with examples to suggest ways that they can serve as models for others.

Malone, Elizabeth [Pacific Northwest National Laboratory (PNNL); Diamond, Richard C. [Lawrence Berkeley National Laboratory (LBNL); Wolfe, Amy K [ORNL; Sanquist, Tom [Pacific Northwest National Laboratory (PNNL); Payne, Christopher [Lawrence Berkeley National Laboratory (LBNL); Dion, Jerry [U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy

2013-01-01T23:59:59.000Z

368

The Gram dimension of a graph  

E-Print Network (OSTI)

be a Gram representation of Xi and let U an orthogonal matrix mapping u. (1) j to u. (2) ...... On the Shannon capacity of a graph IEEE Trans. Inform. Th. IT-25:.

369

Gauge-Higgs Unification in six dimensions  

E-Print Network (OSTI)

Motivated by the pressing problem of the ``little hierarchies'', the possibility of realizing a consistent model of Electroweak Symmetry Breaking via the so-called ``Gauge-Higgs Unification Mechanism'' is discussed. We identify a class of 6 dimensional SU(3) gauge models in which a single Higgs doublet originates from the internal components of the gauge fields. The Higgs mass is beautifully predicted at the tree-level to be twice the $W$-boson mass. At the quantum level, a 1-loop quadratically divergent localized operator is generated and it can contribute to the Higgs mass, reintroducing then the little hierarchy problem. We show that, in some particular case, the presence of this operator does not destabilize the Electroweak Symmetry Breaking Scale and we obtain a framework in which realistic models could be formulated.

Andrea Wulzer

2004-05-19T23:59:59.000Z

370

DIMENSIONS of DISCOVERY Sponsored Program Awards  

E-Print Network (OSTI)

Purdue Research Foundation: Office of the Vice President for Research (OVPR), $17,059, "Pur- due Solar (OVPR), $17,059, "Electro- chemical Construction of pn Homojunction Cu2O Solar Cells." Choi, Young D Research in Novel Polymeric Compounds Containing Magnesium." Doudareva, Natalia; horticulture & landscape

Ginzel, Matthew

371

Treating business dimension in software ecosystems  

Science Conference Proceedings (OSTI)

Software Ecosystems (SECOs) have emerged as an approach to improve Software Engineering (SE) in industry considering relations among companies and stakeholders. Companies have opened up their platforms and artifacts to others, including partners and ... Keywords: component-based software engineering, software ecosystems, software reuse, value-based software engineering

Rodrigo Pereira dos Santos; Cludia Werner

2011-11-01T23:59:59.000Z

372

Operational support systems the global dimension  

Science Conference Proceedings (OSTI)

Global activity in the telecommunications industry is increasing as operators look to expand into overseas markets, a trend that is currently being accelerated by the rationalisation of the information technology (IT), telecommunications and entertainment ...

H. Sundaresan

1997-01-01T23:59:59.000Z

373

Embedding Gdel's universe in five dimensions  

E-Print Network (OSTI)

According to the Campbell-Magaard theorem, any analytical spacetime can be locally and analytically embedded into a five-dimensional pseudo-Riemannian Ricci-flat manifold. We find explicitly this embedding for Godel's universe. The embedding space is Ricci-flat and has a non-Lorentzian signature of type (++--). We also show that the embedding found is global.

J. B. Fonseca-Neto; C. Romero; F. Dahia

2005-03-30T23:59:59.000Z

374

Modeling data with multiple time dimensions  

Science Conference Proceedings (OSTI)

A large class of problems in time series analysis can be represented by a set of overlapping time series with different starting times. These time series may be treated as different probes of the same underlying process. Such probes may follow a characteristic ... Keywords: Dendrochronology, Douglas fir, Dual-time dynamics, El Malpais, Generalized additive models, Global climate change, Non-linear dynamics, Non-linear modeling, Pinon pine, Ponderosa pine, Portfolio forecasting, Retail lending, SETI@home, Scenario-based forecasting, Search for extraterrestrial intelligence, Time series, Tree rings

Joseph L. Breeden

2007-05-01T23:59:59.000Z

375

Marginally outer trapped surfaces in higher dimensions  

E-Print Network (OSTI)

We review the basic setup of Kaluza-Klein theory, namely a 5-dimensional vacuum with a cyclic isometry, which corresponds to Einstein-Maxwell-dilaton theory in 4-dimensional spacetime. We first recall the behaviour of Killing horizons and its generators under bundle lift and projection. We then show that the property of compact surfaces of being (stably) marginally trapped is preserved under lift and projection provided the appropriate ("Pauli-") conformal scaling is used for the spacetime metric. We also discuss and compare recently proven area inequalities for stable axially symmetric 2-dimensional and 3-dimensional marginally outer trapped surfaces.

Tim-Torben Paetz; Walter Simon

2013-02-13T23:59:59.000Z

376

Regular black hole in three dimensions  

E-Print Network (OSTI)

We find a new black hole in three dimensional anti-de Sitter space by introducing an anisotropic perfect fluid inspired by the noncommutative black hole. This is a regular black hole with two horizons. We compare thermodynamics of this black hole with that of non-rotating BTZ black hole. The first-law of thermodynamics is not compatible with the Bekenstein-Hawking entropy.

Yun Soo Myung; Myungseok Yoon

2008-10-01T23:59:59.000Z

377

Wave packet scattering in one dimension  

Science Conference Proceedings (OSTI)

... reflected (integrated probability density) Analytical ... nominal energy wall oscillator energy levels ... wavepacket energies reflected wavevector transfer ...

2013-09-27T23:59:59.000Z

378

Apparatus for electroplating particles of small dimension  

DOE Patents (OSTI)

The thickness, uniformity, and surface smoothness requirements for surface coatings of glass microspheres for use as targets for laser fusion research are critical. Because of thier minute size, the microspheres are difficult to manipulate and control in electroplating systems. The electroplating apparatus of the present invention addresses these problems by providing a cathode cell having a cell chamber, a cathode and an anode electrically isolated from each other and connected to an electrical power source. During the plating process, the cathode is controllably vibrated along with solution pulse to maintain the particles in random free motion so as to attain the desired properties.

Yu, C.M.; Illige, J.D.

1980-09-19T23:59:59.000Z

379

Service innovation readiness: Dimensions and performance outcome  

Science Conference Proceedings (OSTI)

This study proposes a higher-order multidimensional construct of service innovation readiness (SIR) based on the organizational change literature and the awareness-motivation-capability perspective. Service innovation is gaining more attention due to ... Keywords: Organizational change, Service innovation, Service innovation performance, Service innovation readiness

Hsiuju Rebecca Yen; Wenkai Wang; Chih-Ping Wei; Sheila Hsuan-Yu Hsu; Hung-Chang Chiu

2012-11-01T23:59:59.000Z

380

Curvelet based face recognition via dimension reduction  

Science Conference Proceedings (OSTI)

Multiresolution ideas, notably the wavelet transform, have been proved quite useful for analyzing the information content of facial images. Numerous papers and research articles have discussed the application of wavelet transform in face recognition. ... Keywords: Digital curvelet transform, LDA, Multiresolution analysis, PCA, Subbands, Wavelet transform

Tanaya Mandal; Q. M. Jonathan Wu; Yuan Yuan

2009-12-01T23:59:59.000Z

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


381

Modeling phosphorus diffusion in three dimensions  

Science Conference Proceedings (OSTI)

A three-dimensional process simulator in which both the standard nonlinear diffusion model and a five-species kinetic model are implemented to model phosphorus diffusion in silicon is described. The reaction-diffusion equations are discretized using ...

W. B. Richardson; G. F. Carey; B. J. Mulvaney

2006-11-01T23:59:59.000Z

382

HOLOGRAPHY AND INFRARED CONFORMALITY IN TWO DIMENSIONS  

E-Print Network (OSTI)

This is a very brief review of some results from Refs. [2] and [3]. In holographic renormalization, we studied the RG flow of a 2d N = (4, 4) CFT perturbed by a relevant operator, flowing to a conformal fixed point in the IR. Here, the supergravity dual is displayed, and the computation of correlators is discussed. The sample stress-energy correlator given here provides an opportunity to explicitly compare Zamolodchikovs C-function to the proposal for a holographic C-function. First, I will recall how to compute correlators holographically, even in the presence of domain walls (for a review, see [1]). As a simple analogy to keep in mind, consider a medieval castle where soldiers are practicing cannon-firing from atop the castle walls into the interior courtyard. Let us say that when the wall has height h0, a horizontally fired cannon ball hits the ground precisely in the middle of the courtyard. A priori the height of the wall h and the angle of firing ?

Marcus Berg

2002-01-01T23:59:59.000Z

383

Weighted locally linear embedding for dimension reduction  

Science Conference Proceedings (OSTI)

The low-dimensional representation of high-dimensional data and the concise description of its intrinsic structures are central problems in data analysis. In this paper, an unsupervised learning algorithm called weighted locally linear embedding (WLLE) ... Keywords: Feature extraction, Locally linear embedding, Manifold learning, Nonlinear dimensionality reduction

Yaozhang Pan; Shuzhi Sam Ge; Abdullah Al Mamun

2009-05-01T23:59:59.000Z

384

Strategische Board Dimension Keep it strategic - Springer  

Science Conference Proceedings (OSTI)

Ferner wiesen wissenschaftliche Untersuchungen nach, dass Unternehmen mit einem ..... Ferrier bergab Suter den gesamten Ergebnisbericht des ameri-.

385

Quantifying cellular traction forces in three dimensions  

E-Print Network (OSTI)

of the gels. Analysis of the normal displacement profiles suggests that normal forces play important roles-dimensional (2-D) analysis and interpretation of cell-matrix interactions. Furthermore, these approaches cal allows a more complete analysis of cellular forces than does consideration of only in-plane (2-D

Stein, Derek

386

Estimating manifold dimension by inversion error  

Science Conference Proceedings (OSTI)

Video and image datasets can often be described by a small number of parameters, even though each image usually consists of hundreds or thousands of pixels. This observation is often exploited in computer vision and pattern recognition by the application ...

Shawn Martin; Alex Bcker

2005-03-01T23:59:59.000Z

387

Dimensions of credibility in models and simulations  

Science Conference Proceedings (OSTI)

Based on the National Aeronautics and Space Administration's (NASA's) work in developing a standard for models and simulations (M&S), the subject of credibility in M&S became a distinct focus. This is an indirect result from the Space Shuttle Columbia ... Keywords: NASA, credibility, models, robustness, simulations, standard, uncertainty, validation, verification

Martin J. Steele

2008-06-01T23:59:59.000Z

388

Assessment of the Greenhouse Gas Emission Reduction Potential of Ultra-Clean Hybrid-Electric Vehicles  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Theunituse of regenerative braking. 4.3 Pulse Power Energy Storage

Burke, A.F.; Miller, M.

1997-01-01T23:59:59.000Z

389

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

E-Print Network (OSTI)

and from regenerative braking, and passes energy to theor from regenerative braking and uses the energy in the

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

2008-01-01T23:59:59.000Z

390

MEP Advisory Board Webcast  

Science Conference Proceedings (OSTI)

Page 1. BRAKES DOORS HVAC February 2012 Page 2. ... Freight / Commercial Vehicles (Trucks, Busses) Brakes / Doors / HVAC Page 3. ...

2012-02-17T23:59:59.000Z

391

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

E-Print Network (OSTI)

by the eddy currents can be neglected, the resistive force is proportional to the speed of the e-mail: champ@cim.mcgill.ca e-mail: andrewg@cim.mcgill.ca e-mail: hayward@cim.mcgill.ca conductor [8]. The physics behind eddy

Hayward, Vincent

392

Roadway Powered Electric Vehicle Project Track Construction And Testing Program Phase 3D  

E-Print Network (OSTI)

lines show energy flow during regenerative braking. Theregenerative braking, the motor (acting as a generator) is supplying as much energyregenerative braking above the base speed of 12 mph. The energy

Systems Control Technology, Inc.

1994-01-01T23:59:59.000Z

393

Microsoft Word - ford99.html  

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

FM Stereo Radio Tilt Steering Wheel Cabin Heat Dual Air Bags Power Steering (electro-hydraulic) Power Brakes Four Wheel Disc Brakes Four Wheel Anti-Lock Brakes Regenerative...

394

Beijing Full Three Dimension Power Engineering Co Ltd FTD | Open...  

Open Energy Info (EERE)

Co Ltd (FTD) Place Beijing, Beijing Municipality, China Zip 100080 Product A steam turbine design and refurbishment service provider. Focus on technical renovation of...

395

Calculated Attractor Dimensions for Low-Order Spectral Models  

Science Conference Proceedings (OSTI)

Advancing knowledge about the phase space topologies of nonlinear hydrodynamic or dynamical systems has raised the question of whether the structure of the attractors in which the solutions are eventually confined can be characterized rigorously ...

Jon M. Nese; John A. Dutton; Robert Wells

1987-08-01T23:59:59.000Z

396

Method for making radioactive metal articles having small dimensions  

SciTech Connect

A method for making a radioactive article such as wire, includes the steps of providing a metal article having a first shape, such a cylinder, that is either radioactive itself or can be converted to a second, radioactive isotope by irradiation; melting the metal article one or more times; optionally adding an alloying metal to the molten metal in order to enhance ductility or other properties; placing the metal article having the first shape (e.g., cylindrical) into a cavity in the interior of an extrusion body (e.g., a cylinder having a cylindrical cavity therein); extruding the extrusion body and the article having the first shape located in the cavity therein, resulting in an elongated extrusion body and an article having a second shape; removing the elongated extrusion body, for example by chemical means, leaving the elongated inner article substantially intact; optionally repeating the extrusion procedure one or more times; and then drawing the elongated article to still further elongate it, into wire, foil, or another desired shape. If the starting metal is enriched in a radioactive isotope or a precursor thereof, the end product can provide a more intense radiation source than conventionally manufactured radioactive wire, foil, or the like.

Ohriner, Evan K. (Knoxville, TN)

2000-01-01T23:59:59.000Z

397

Conservation of Mass in Three Dimensions in Global Analyses  

Science Conference Proceedings (OSTI)

For a number of reasons, conservation of mass in the global analyses on pressure coordinates is violated, yet this constraint is required for budget studies of all kinds. The imbalances arise from postprocessing the variables onto pressure ...

Kevin E. Trenberth; James W. Hurrell; Amy Solomon

1995-04-01T23:59:59.000Z

398

Parity violating quantum kinetic theory in (2+1)-dimensions  

E-Print Network (OSTI)

We study the kinetic theory for a (2+1)-dimensional fermionic system with special emphasis on the parity violating properties associated with the fermion mass. The Wigner function approach is used to derive hydrodynamical transport coefficients to the first spatial derivative order. As a first attempt, the collisions between fermions are neglected. The resulting system is dissipationless. The parity violating Hall electric conductivity has the same temperature and chemical potential dependence as the quantum field theory result at one-loop. Vorticity dependent transport properties, which were not considered before, also emerge naturally in this approach.

Jiunn-Wei Chen; Jian-Hua Gao; Juan Liu; Shi Pu; Qun Wang

2013-05-08T23:59:59.000Z

399

Process Mapping of Melt Pool Dimension Control in Electron Beam ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2011. Symposium, Additive Manufacturing of Metals. Presentation Title, Process Mapping of Melt...

400

Hyperboloidal evolution of test fields in three spatial dimensions  

E-Print Network (OSTI)

We present the numerical implementation of a clean solution to the outer boundary and radiation extraction problems within the 3+1 formalism for hyperbolic partial differential equations on a given background. Our approach is based on compactification at null infinity in hyperboloidal scri fixing coordinates. We report numerical tests for the particular example of a scalar wave equation on Minkowski and Schwarzschild backgrounds. We address issues related to the implementation of the hyperboloidal approach for the Einstein equations, such as nonlinear source functions, matching, and evaluation of formally singular terms at null infinity.

Zenginoglu, Anil

2010-01-01T23:59:59.000Z

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


401

Hyperboloidal evolution of test fields in three spatial dimensions  

E-Print Network (OSTI)

We present the numerical implementation of a clean solution to the outer boundary and radiation extraction problems within the 3+1 formalism for hyperbolic partial differential equations on a given background. Our approach is based on compactification at null infinity in hyperboloidal scri fixing coordinates. We report numerical tests for the particular example of a scalar wave equation on Minkowski and Schwarzschild backgrounds. We address issues related to the implementation of the hyperboloidal approach for the Einstein equations, such as nonlinear source functions, matching, and evaluation of formally singular terms at null infinity.

Anil Zenginoglu; Lawrence E. Kidder

2010-04-06T23:59:59.000Z

402

Dynamic reduction of dimensions of a document vector in a ...  

Agent-Based Software for Gathering and Summarizing Textual and Internet Information: Abstract: The method and system of the invention involves processing each new ...

403

Simulation of dye solar cells: through and beyond one dimension  

Science Conference Proceedings (OSTI)

In this work we present a Computer Aided Design (CAD) software, called TiberCAD, to simulate Dye Sensitized Solar Cells (DSC). DSCs are particularly interesting devices due to their high efficiency (more than 11% on small area and 8% on large area) and ... Keywords: Drift diffusion, Dye sensitized solar cells, Electrochemistry, Finite element methods, Solar cells

Alessio Gagliardi; Matthias Auf Der Maur; Desiree Gentilini; Aldo Carlo

2011-12-01T23:59:59.000Z

404

Tailoring the Third Dimension in Layered Materials: Direct Synthesis ...  

Science Conference Proceedings (OSTI)

On-Site Speaker (Planned), Luyi Sun. Abstract ... Enhancement of Catalytic Performance in the Pt Nanoparticle by Doping Zirconia Support with Y or Ce: A DFT...

405

Dimension-Independent Positive-Partial-Transpose Probability Ratios  

E-Print Network (OSTI)

We conduct quasi-Monte Carlo numerical integrations in two very high (80 and 79)-dimensional domains -- the parameter spaces of rank-9 and rank-8 qutrit-qutrit (9 x 9) density matrices. We, then, estimate the ratio of the probability -- in terms of the Hilbert-Schmidt metric -- that a generic rank-9 density matrix has a positive partial transpose (PPT) to the probability that a generic rank-8 density matrix has a PPT (a precondition to separability/nonentanglement). Close examination of the numerical results generated -- despite certain large fluctuations -- indicates that the true ratio may, in fact, be 2. Our earlier investigation (eprint quant-ph/0410238) also yielded estimates close to 2 of the comparable ratios for qubit-qubit and qubit-qutrit pairs (the only two cases where the PPT condition fully implies separability). Therefore, it merits conjecturing (as Zyczkowski was the first to do) that such Hilbert-Schmidt (rank-NM/rank-(NM-1)) PPT probability ratios are 2 for all NM-dimensional quantum systems.

Paul B. Slater

2005-05-13T23:59:59.000Z

406

Low Bandwidth Video Compression with Variable Dimension Vector Quantization  

E-Print Network (OSTI)

Lambert,R. Fryer,R.J. Cockshott,W.P. Mcgregor,D.R. Proceedings of the First Advanced Digital Video Compression Engineering Conference (Cambridge, UK)

Lambert, R.; Fryer, R.J.; Cockshott, W.P.

407

Neutrino signature of supernova hydrodynamical instabilities in three dimensions  

E-Print Network (OSTI)

The first full-scale three-dimensional (3D) core-collapse supernova (SN) simulations with sophisticated neutrino transport show pronounced effects of the standing accretion shock instability (SASI) for two high-mass progenitors (20 and 27 M_sun). In a low-mass progenitor (11.2 M_sun), large-scale convection is the dominant nonradial hydrodynamic instability in the postshock accretion layer. The SASI-associated modulation of the neutrino signal (80 Hz in our two examples) will be clearly detectable in IceCube or the future Hyper-Kamiokande detector, depending on progenitor properties, distance, and observer location relative to the main SASI sloshing direction. The neutrino signal from the next galactic SN can therefore diagnose the nature of the hydrodynamic instability.

Irene Tamborra; Florian Hanke; Bernhard Mueller; Hans-Thomas Janka; Georg Raffelt

2013-07-30T23:59:59.000Z

408

Approximate Controllability for Linear Stochastic Differential Equations in Infinite Dimensions  

SciTech Connect

The objective of the paper is to investigate the approximate controllability property of a linear stochastic control system with values in a separable real Hilbert space. In a first step we prove the existence and uniqueness for the solution of the dual linear backward stochastic differential equation. This equation has the particularity that in addition to an unbounded operator acting on the Y-component of the solution there is still another one acting on the Z-component. With the help of this dual equation we then deduce the duality between approximate controllability and observability. Finally, under the assumption that the unbounded operator acting on the state process of the forward equation is an infinitesimal generator of an exponentially stable semigroup, we show that the generalized Hautus test provides a necessary condition for the approximate controllability. The paper generalizes former results by Buckdahn, Quincampoix and Tessitore (Stochastic Partial Differential Equations and Applications, Series of Lecture Notes in Pure and Appl. Math., vol. 245, pp. 253-260, Chapman and Hall, London, 2006) and Goreac (Applied Analysis and Differential Equations, pp. 153-164, World Scientific, Singapore, 2007) from the finite dimensional to the infinite dimensional case.

Goreac, D. [Universite Paris-Est, LAMA, UMR 8050 (France)], E-mail: dan.goreac@univ-mlv.fr

2009-08-15T23:59:59.000Z

409

DIMENSIONING WDM OPTICAL NETWORKS WITH MINIMUM MSPP CONFIGURATION  

E-Print Network (OSTI)

optimizing the traffic grooming. The MSPP cost will be estimated through the number of transport blades bandwidth, but rather by the processing capability of electronic switches, routers, and multiplexers to minimize the amount of electronic multiplexing equipment. We present a study on the design of a Tabu Search

Houle, Alain C.

410

Disentangling Dimension Six Operators through Di-Higgs Boson Production  

E-Print Network (OSTI)

Six Operators through Di-Higgs Boson Production Aaron Piercethe production rate and branching ratios of the Higgs boson.Here, we show how Higgs boson pair production can yield

Pierce, Aaron; Thaler, Jesse; Wang, Lian-Tao

2008-01-01T23:59:59.000Z

411

From Two to Three Dimensions: the Mutual Benefits of Cross ...  

Science Conference Proceedings (OSTI)

Contributions of Atom Probe Tomography to the Understanding of Steels ... Investigation of the Microstructure-Property-Processing Relationships in a Series of...

412

Numerical Simulation of a Midlatitude Squall Line in Two Dimensions  

Science Conference Proceedings (OSTI)

A two-dimensional, anelastic cloud model was used in attempts to numerically replicate the observed structure of a midlatitude squall line. Initial conditions were adapted from observations of the 22 May 1976 Oklahoma line. Model simulations were ...

Robert G. Fovell; Yoshi Ogura

1988-12-01T23:59:59.000Z

413

Support assembly having three dimension position adjustment capabilities  

DOE Patents (OSTI)

An assembly for supporting an apparatus such as a microscope or laser to and against a planar surface is disclosed herein. This apparatus includes three specific arrangements for adjusting the positions of three segments of the apparatus so as to adjust the position of the overall apparatus with respect to the planar surface in the x-, y-and z-directions, where the x-direction and the y-direction are both parallel with the planar surface and perpendicular to one another and where the z-direction is perpendicular to the planar surface and the x-and y-directions. Each of two of the three arrangements includes its own means for providing x-, y- and z-adjustments (which includes rotation in the x, y plane) while it is only necessary for the third arrangement to provide adjustments in the z-direction.

Cutburth, Ronald W. (Tracy, CA); House, F. Allen (Livermore, CA)

1987-01-01T23:59:59.000Z

414

Support assembly having three dimension position adjustment capabilities  

DOE Patents (OSTI)

An assembly for supporting an apparatus such as a microscope or laser to and against a planer surface is disclosed herein. This apparatus includes three specific arrangements for adjusting the positions of three segments of the apparatus so as to adjust the position of the overall apparatus with respect to the planer surface in the x-, y- and z-directions, where the x-direction and the y-direction are both parallel with the planer surface and perpendicular to one another and where the z-direction is perpendicular to the planer surface and the x- and y-directions. Each of two of the three arrangements includes its own means for providing x-, y- and z-adjustments (which includes rotation in the x, y plane) while it is only necessary for the third arrangement to provide adjustments in the z-direction.

Cutburth, R.W.; House, F.A.

1985-11-08T23:59:59.000Z

415

Dimensions of symmetry in syntax : agreement and clausal architecture  

E-Print Network (OSTI)

(cont.) are, then, determined at phase levels by late insertion of categorial features. One crucial aspect of the proposed theory of structural symmetry involves interweaving effects, which emerge as categorial determination ...

Hiraiwa, Ken, 1974-

2005-01-01T23:59:59.000Z

416

A Rigorous Path Integral Construction in any Dimension  

E-Print Network (OSTI)

We propose a new rigorous time-slicing construction of the phase space Path Integrals for propagators both in Quantum Mechanics and Quantum Field Theory for a fairly general class of quantum observables (e.g. the Schroedinger hamiltonians with smooth scalar potentials of any power growth). Moreover we allow time-dependent hamiltonians and a great variety of discretizations, in particular, the standard, Weyl, and normal ones.

Alexander Dynin

1998-02-11T23:59:59.000Z

417

for Enclosed Bu()yant Convection in Two Dimensions  

Science Conference Proceedings (OSTI)

... ( 8Ui 8Ui) 8p 82Ui (1) +--pki9 = pv- 8t :J 8xj 8Xi 8x~ (aT 8T) 82T pCp 8t +Uj8xj ... HUMBER OF PRINTED PAGES 39 15. PRICE A03 Page 35. , b ili I'" "'I

2008-12-22T23:59:59.000Z

418

Pricing Carbon for Electricity Generation: National and International Dimensions  

E-Print Network (OSTI)

(CO2 equivalent). This is equivalent to specifying a stock of GHGs, or a quantity limit on the amount of fossil fuel that can be burned over the next 100-200 years. The argument for choosing this quantity target, loosely stated, is that mitigation... treatment), but it is the combination of long timescales and policy risk that is damaging, - While fossil-fuel generation is at the margin and setting the electricity price, conventional generators will be largely hedged against both fuel and carbon price...

Grubb, Michael; Newbery, David

419

Changes related to "Beijing Full Three Dimension Power Engineering...  

Open Energy Info (EERE)

Login | Sign Up Wiki Browse Latinoamrica Buildings Clean Energy Economy Coordinated Low Emissions Assistance Network Geothermal Incentives and Policies International Clean Energy...

420

Pages that link to "Beijing Full Three Dimension Power Engineering...  

Open Energy Info (EERE)

Login | Sign Up Wiki Browse Latinoamrica Buildings Clean Energy Economy Coordinated Low Emissions Assistance Network Geothermal Incentives and Policies International Clean Energy...

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


421

Black Holes in Higher Dimensions (Black Strings and Black Rings)  

E-Print Network (OSTI)

The main focus of this session was the presentation of new higher-dimensional black hole solutions, including black rings, black strings, and multi black holes, and the study of their properties. Besides new asymptotically flat and locally asymptotically flat black objects also new black holes with anti-de Sitter asymptotics were reported. The studies of their properties included the investigation of their stability, their thermodynamics, their analyticity and their existence. Furthermore, the geodesics in such higher-dimensional space-times were investigated.

Kunz, Jutta

2013-01-01T23:59:59.000Z

422

Relativistic Coulomb Green's function in $d$-dimensions  

E-Print Network (OSTI)

Using the operator method, the Green's functions of the Dirac and Klein-Gordon equations in the Coulomb potential $-Z\\alpha/r$ are derived for the arbitrary space dimensionality $d$. Nonrelativistic and quasiclassical asymptotics of these Green's functions are considered in detail.

Lee, R N; Terekhov, I S

2011-01-01T23:59:59.000Z

423

Multi-Element Probabilistic Collocation Method in High Dimensions  

E-Print Network (OSTI)

at the Hanford nuclear waste site under stochastic hydraulic conductivity conditions. Finally, we compare- butions with the numerical construction of generalized polynomial chaos bases on the fly. This approach

Foo, Jasmine

424

The Effect of Specimen Dimensions on the Propensity to Adiabatic ...  

Science Conference Proceedings (OSTI)

Unconventional Short-Term Glow Discharge Nitriding of 316l Austenitic Steel Using Accumulative Roll Bonding to Process Ultrafine Grained...

425

Entanglement spectroscopy of SU(2)-broken phases in two dimensions  

E-Print Network (OSTI)

In magnetically ordered systems the breaking of SU(2) symmetry in the thermodynamic limit is associated with the appearance of a special type of low-lying excitations in finite size energy spectra, the so called tower of states (TOS). In the present work we numerically demonstrate that there is a correspondence between the SU(2) tower of states and the lower part of the ground state entanglement spectrum (ES). Using state-of-the-art DMRG calculations, we examine the ES of the 2D antiferromagnetic J1-J2 Heisenberg model on both the triangular and kagom\\'e lattice. At large ferromagnetic J2 the model exhibits a magnetically ordered ground state. Correspondingly, its ES contains a family of low-lying levels that are reminiscent of the energy tower of states. Their behavior (level counting, finite size scaling in the thermodynamic limit) sharply reflects tower of states features, and is characterized in terms of an effective entanglement Hamiltonian that we provide. At large system sizes TOS levels are divided from the rest by an entanglement gap. Our analysis suggests that (TOS) entanglement spectroscopy provides an alternative tool for detecting and characterizing SU(2)-broken phases using DMRG.

F. Kolley; S. Depenbrock; I. P. McCulloch; U. Schollwck; V. Alba

2013-07-24T23:59:59.000Z

426

Numerical Simulation of Wax Pattern Dimensions in Investment ...  

Science Conference Proceedings (OSTI)

Feb 1, 2002 ... TMS Member price: 10.00. Non-member price: 25.00. TMS Student Member price : 10.00. Product In Stock. Description Dimensional changes...

427

Parallel implementation of the Dirac equation in three Cartesian dimensions  

SciTech Connect

We describe the numerical methods used to solve the time-dependent Dirac equation on a three-dimensional Cartesian lattice. Efficient algorithms are required for computationally intensive studies of vacuum-pair production in relativistic heavy-ion collisions. Discretization is achieved through the lattice-collocation method. All numerical procedures reduce to a series of matrix-vector operations which we perform on the Intel iPSC/860 hypercube, making full use of parallelism. We discuss our solutions to the problems of limited node memory and node-to-node communication overhead inherent in using distributed-memory, multiple-instruction, multiple-data stream parallel computers.

Wells, J.C.; Strayer, M.R. [Oak Ridge National Lab., TN (United States); Oberacker, V.E.; Umar, A.S. [Oak Ridge National Lab., TN (United States)]|[Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy

1994-09-01T23:59:59.000Z

428

Evolution of Fermion Pairing from Three to Two Dimensions  

E-Print Network (OSTI)

We follow the evolution of fermion pairing in the dimensional crossover from three-dimensional to two-dimensional as a strongly interacting Fermi gas of [superscript 6]Li atoms becomes confined to a stack of two-dimensional ...

Sommer, Ariel Tjodolv

429

Analytical Transmission Electron Microscopy in the Third Dimension  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Optical and X-ray Imaging Techniques for Material Characterization.

430

Design and dimensioning of an edge router using Markov model  

Science Conference Proceedings (OSTI)

This paper presents the formulation, modelling and analysis of network traffic for the purpose of designing an edge router. Presuming packet arrival in Poisson's process and departure or service time distribution to be exponential, a Markov model ... Keywords: CTMC, IID, MMPP, Markov modulated Poisson process, QoS, buffer capacity, buffer occupancy, computer networks, continuous time Markov chain, edge routers, independent identically distributed, link speed, load factor, network traffic, quality of service

Partha Bhattacharjee; Goutam Sanyal

2009-06-01T23:59:59.000Z

431

Liouville-Lifshitz theory in 3+1 dimensions  

Science Conference Proceedings (OSTI)

We consider a four-dimensional theory in the z=3 Lifshitz context, with an exponential (Liouville) potential. We determine the exact renormalized potential of the theory and derive the nonperturbative relation between the renormalized and bare couplings. In addition, we show that Lorentz symmetry is naturally generated by quantum fluctuations in the infrared regime, and conclude that the model can be relevant to high energy physics.

Alexandre, J. [King's College London, Department of Physics, WC2R 2LS (United Kingdom); Farakos, K. [Department of Physics, National Technical University of Athens, Zografou Campus, 157 80 Athens (Greece); Tsapalis, A. [Department of Physics, National Technical University of Athens, Zografou Campus, 157 80 Athens (Greece); Hellenic Naval Academy, Hatzikyriakou Avenue, Pireaus 185 39 (Greece)

2010-05-15T23:59:59.000Z

432

Collecting and Analyzing Microstructures in Three Dimensions: A ...  

Science Conference Proceedings (OSTI)

Robo-Met.3D is a fully automated robotic serial sectioning device that was .... It has been established through experimentation that the spatial distribution and/or

433

RESEARCH HIGHLIGHTS A new dimension for particle physics  

E-Print Network (OSTI)

selectivity Rapid cancer detection on a chip Brain waves wax and wane Feeding the flames for fat accumulation on these protein signatures. Unfortunately, cancers ultimately deploy defensive strategies that render the body

Fukai, Tomoki

434

Local stabilizer codes in three dimensions without string logical operators  

Science Conference Proceedings (OSTI)

We suggest concrete models for self-correcting quantum memory by reporting examples of local stabilizer codes in 3D that have no string logical operators. Previously known local stabilizer codes in 3D all have stringlike logical operators, which make the codes non-self-correcting. We introduce a notion of ''logical string segments'' to avoid difficulties in defining one-dimensional objects in discrete lattices. We prove that every stringlike logical operator of our code can be deformed to a disjoint union of short segments, each of which is in the stabilizer group. The code has surfacelike logical operators whose partial implementation has unsatisfied stabilizers along its boundary.

Haah, Jeongwan [Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125 (United States)

2011-04-15T23:59:59.000Z

435

Fitting Functions to Noisy Data in High Dimensions  

E-Print Network (OSTI)

Consider an arbitrary domain of interest in n-dimensional Euclidean space and an unknown function of n arguments defined on that domain. Suppose we are given the value of the function (perhaps perturbed with additive noise) at some set of points. The problem is to find a function that provides a reasonable approximation to the unknown one over the domain of interest. This paper presents a brief review of current methodology aimed at dealing with this problem, and presents a; new technique- multivariate adaptive regression splines- that has the potential to overcome some of the limitations of previous approaches. Suppose a system under study can be described (over some domain D E I?) by where y is a response or dependent variable of interest, ~1,..., 2, are a set of explanatory or inde-pendent variables, and f is a (deterministic) single valued function of its n-dimensional argument. The quantity c is an additive random or stochastic component that (if nonzero) reflects the fact

Jerome H. Friedman

1988-01-01T23:59:59.000Z

436

Um estudo dos mecanismos de desgaste em disco de freio automotivo ventilado de ferro fundido cinzento perltico com grafita lamelar.  

E-Print Network (OSTI)

??The main mechanims of wear, present in ventilated brake disc had been determined, when submited to the braking test in inertial dynamometric simulator. Were measured (more)

Edison Marcelo Serbino

2005-01-01T23:59:59.000Z

437

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

E-Print Network (OSTI)

fleet). Regenerative braking can improve energy efficiencyregenerative braking. Application of these technologies and strategies has the effect of lowering the energy

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

2008-01-01T23:59:59.000Z

438

Fuel Economy: Where the Energy Goes  

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

and lighter-weight technologies. Hybrids, plug-in hybrids, and electric vehicles use regenerative braking to recover some braking energy that would otherwise be lost. more......

439

Stop/Start: Overview  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

a combination of regenerative and conventional friction braking to slow the vehicle. In regenerative braking, energy from the wheels turns the electric generator, creating...

440

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

E-Print Network (OSTI)

the vehmle allows regenerative brakmg energy to be captured,and to capture regenerative braking energy, or a simplerto recapture regenerative braking energy. motor-asstst

Sperling, Daniel; Lipman, Timothy

2003-01-01T23:59:59.000Z

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


441

Optimum Performance of Direct Hydrogen Hybrid Fuel Cell Vehicles  

E-Print Network (OSTI)

such that regenerative braking energy can be efficientlyto recovering energy by regenerative braking. This increaseis to recover energy while decelerating through regenerative

Zhao, Hengbing; Burke, Andy

2009-01-01T23:59:59.000Z

442

A Lifecycle Emissions Model (LEM): Lifecycle Emissions from Transportation Fuels, Motor Vehicles, Transportation Modes, Electricity Use, Heating and Cooking Fuels, and Materials  

E-Print Network (OSTI)

maximum, and restricts regenerative energy to be less thanthe extra energy made available by regenerative braking. Theregenerative braking (for fuel-cell vehicles without electro-chemical energy

Delucchi, Mark

2003-01-01T23:59:59.000Z

443

Emissions of Criteria Pollutants, Toxic Air Pollutants, and Greenhouse Gases, From the Use of Alternative Transportation Modes and Fuels  

E-Print Network (OSTI)

acceleration energy recovered by regenerative braking Heavy-efficiencies, energy use by accessories, use of regenerativeregenerative braking can return up to 20% of propulsion energy;

Delucchi, Mark

1996-01-01T23:59:59.000Z

444

Microsoft Word - ev1.doc  

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

Running Lamps Power Windows, Mirrors & Door Locks AMFM Stereo wCassette and CD Player Regenerative Braking with Coastdown Electro-Hydraulic Braking with ABS Electro Windshield...

445

1999 EV America Technical Specifications  

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

braking and anti-lock brake systems. 4.3 OVERHEATING The vehicle motor and controllerinverter should be capable of continuous operation at maximum vehicle speed andor sustained...

446

Braking the making of a treaty : the role of Spain and Poland in the intergovernmental negotiations on the treaty establishing a Constitution for Europe.  

E-Print Network (OSTI)

??The 2003 Intergovernmental Conference in the EU was halted from December 2003 till March 2004. The reason was the opposition against the proposed new double (more)

Gulbrandsen, Christer

2005-01-01T23:59:59.000Z

447

ELECTROCHEMICAL POWER FOR TRANSPORTATION  

E-Print Network (OSTI)

regenerative braking was much more significant with the separately- excited motor in that the energy

Cairns, Elton J.

2012-01-01T23:59:59.000Z

448

CENTRE NATIONAL DE LA RECHERCHE  

E-Print Network (OSTI)

-wheel motors, EMB : · standard ABS algorithms are not adapted to regenerative braking (Toyota Prius

449

Alloy Groupings by Application or Major Characteristic  

Science Conference Proceedings (OSTI)

...Missile bodies Missile fins Aircraft pylons Aircraft canopies Wing flaps Speed brakes Hatch covers Hydraulic pumps Automotive suspension systems and cross-members Fuel pumps Brake valves Armored cupolas Aerospace structural parts Applications include:...

450

VIN# JHMFA36216S019329 Vehicle Specifications  

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

16S019329 Vehicle Specifications Engine: 1.3 L 4-cylinder Electric Motor: 15 kW Battery: NiMH Seatbelt Positions: Five Payload: 968 lbs Features: Front disk brakes wEBD brake...

451

VIN# JHMFA36246S018725 Vehicle Specifications  

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

46S018725 Vehicle Specifications Engine: 1.3 L 4-cylinder Electric Motor: 15 kW Battery: NiMH Seatbelt Positions: Five Payload: 968 lbs Features: Front disk brakes wEBD brake...

452

file:///E|/ev/test/evps.shtml  

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

is used as a generator to recharge the batteries when the vehicle is slowing down. During regenerative braking, some of the kinetic energy normally absorbed by the brakes and...

453

MHV Fleet Testing - Maintenance Sheet for 2010 Smart Fortwo  

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

472012 47,544 Changed oil and filter 64.33 4112012 47,840 Replaced left front tire (labor) 45.00 4122012 47,847 Replaced front brake pads, adjusted rear brake shoes...

454

Present Status and Marketing Prospects of the Emerging Hybrid-Electric and Diesel Technologies to Reduce CO2 Emissions of New Light-Duty Vehicles in California  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Both theof energy. The batteries are also recharged via regenerative

Burke, Andy

2004-01-01T23:59:59.000Z

455

Feasible Caf Standard Increases Using Emerging Diesel and Hybrid-Electric Technologies for Light-Duty Vehicles in the United States  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Both theof energy. The batteries are also recharged via regenerative

Burke, Andy; Abeles, Ethan

2004-01-01T23:59:59.000Z

456

Feasible CAFE Standard Increases Using Emerging Diesel and Hybrid-Electric Technologies for Light-Duty Vehicles in the United States  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Both theof energy. The batteries are also recharged via regenerative

Burke, Andy; Abeles, Ethan C.

2004-01-01T23:59:59.000Z

457

Clean Diesel: Overcoming Noxious Fumes  

E-Print Network (OSTI)

regenerative braking to capture cially in medium-sized trucks used for deliveries, and fuel-cell energy

Brodrick, Christie-Joy; Sperling, Daniel; Dwyer, Harry A.

2001-01-01T23:59:59.000Z

458

NREL: Vehicle Systems Analysis - Future Automotive Systems Technology...  

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

rolling resistance) Powertrain components (engine, motor, battery, and auxiliary loads) Regenerative braking Energy management strategies Battery life estimates Cost estimates...

459

untitled  

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

petroleum consumption and emissions * Optimized fuel efficiency and performance * Recover energy during regenerative braking * Use existing gas station infrastructure * Minimal...

460

ACCESS Magazine Fall 2001  

E-Print Network (OSTI)

regenerative braking to capture cially in medium-sized trucks used for deliveries, and fuel-cell energy

2001-01-01T23:59:59.000Z

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


461

The Evolution of Sustainable Personal Vehicles  

E-Print Network (OSTI)

as well as energy recovery during regenerative braking. Theenergy is recoverable in an electrically dominant vehicle through regenerative

Jungers, Bryan D

2009-01-01T23:59:59.000Z

462

ETA-HITP06  

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

6 Revision 0 Effective November 1, 2004 Braking Test Prepared by Electric Transportation Applications Prepared by: Date: Garrett...

463

EV America Skid Test Procedure  

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

6 Revision 3 Effective February 1, 2008 Braking Test Prepared by Electric Transportation Applications Prepared by: Date: Derek Peterson...

464

techbriefs  

and a safer position to operate the emergency brake, radio, or provide flag signals to the engineer. The attached

465

Fuel Economy Standards for New Light Trucks (released in AEO2007)  

Reports and Publications (EIA)

In March 2006, NHTSA finalized CAFE standards requiring higher fuel economy performance for light-duty trucks in MY 2008 through 2011. Unlike the proposed CAFE standards discussed in AEO2006 [13], which would have established minimum fuel economy requirements by six footprint size classes, the final reformed CAFE standards specify a continuous mathematical function that determines minimum fuel economy requirements by vehicle footprint, defined as the wheelbase (the distance from the front axle to the center of the rear axle) times the average track width (the distance between the center lines of the tires) of the vehicle in square feet.

Information Center

2007-02-22T23:59:59.000Z

466

Forging the external dimension of the energy policy of the European union  

Science Conference Proceedings (OSTI)

There is a need for a cohesive, EU-wide energy policy to ensure security of supply and reduce demand, hereby reducing the dependence of Europe on foreign energy supplies. But the actual creation of such a policy must overcome a host of obstacles, including member states' wish to protect their sovereignty, protectionism of national industries, and different approaches to Russia among member states. (author)

Nowak, Bartlomiej

2010-01-15T23:59:59.000Z

467

Geometric and combinatorial properties of well-centered triangulations in three and higher dimensions  

Science Conference Proceedings (OSTI)

An n-simplex is said to be n-well-centered if its circumcenter lies in its interior. We introduce several other geometric conditions and an algebraic condition that can be used to determine whether a simplex is n-well-centered. These conditions, together ... Keywords: Acute triangulations, Circumcentric dual, Discrete exterior calculus, Finite element method, Mesh generation

Evan Vanderzee; Anil N. Hirani; Damrong Guoy; Vadim Zharnitsky; Edgar A. Ramos

2013-08-01T23:59:59.000Z

468

... .,-9 .-F ' : .C,.-DIMENSIONING OF THE HEAT BALANCE AND THE SOLAR  

E-Print Network (OSTI)

resources not only for heating of buildings, but also for cooling. Solar fractions therefore need. INTRODUCTION The number of buildings simultaneously equipped with air heat pumps and photovoltaic collectors as an air source for the heat pump. Other authors, as for instance [2], studied photovoltaic solar assisted

Mosegaard, Klaus

469

The Behavior of Forecast Error Covariances for a Kalman Filter in Two Dimensions  

Science Conference Proceedings (OSTI)

A Kalman filter algorithm is implemented for a linearized shallow-water model over the continental United States. It is used to assimilate simulated data from the existing radiosonde network, from the demonstration network of 31 Doppler wind ...

Stephen E. Cohn; David F. Parrish

1991-08-01T23:59:59.000Z

470

Statistics of energy partitions for many-particle systems in arbitrary dimension  

E-Print Network (OSTI)

In some previous articles, we defined several partitions of the total kinetic energy T of a system of N classical particles in the d-dimensional Euclidean space into components corresponding to various modes of motion. In the present paper, we propose formulas for the mean values of these components in the normalization T=1 (for any d and N) under the assumption that the masses of all the particles are equal. These formulas are proven at the "physical level" of rigor and numerically confirmed for planar systems (d=2) at N from 3 through 100. The case where the masses of the particles are chosen at random is also considered. The paper complements our article of 2008 [Russian J Phys Chem B, 2(6), 947-963] where similar numerical experiments were carried out for spatial systems (d=3) at N from 3 through 100.

Vincenzo Aquilanti; Andrea Lombardi; Mikhail B. Sevryuk

2013-01-11T23:59:59.000Z

471

Phenomenological scaling laws relating the observed galactic dimensions to Planck action constant  

E-Print Network (OSTI)

It is shown that the characteristic observed radius, velocity, and temperature of a typical galaxy can be inferred from Planck action constant through a phenomenological scaling law on all cosmological scales.

Salvatore Capozziello; Salvatore De Martino; Silvio De Siena; Fabrizio Illuminati

1999-03-30T23:59:59.000Z

472

A new Einstein-nonlinear electrodynamics solution in 2+1-dimensions  

E-Print Network (OSTI)

We introduce a class of solutions in $2+1-$dimensional Einstein-Power-Maxwell theory for circularly symmetric electric field. The electromagnetic field is considered with an angular component given by $% F_{\\mu \

S. Habib Mazharimousavi; M. Halilsoy; Ozay Gurtug

2013-04-17T23:59:59.000Z

473

Power Density Primer: Understanding the Spatial Dimension of the Unfolding Transition to Renewable  

E-Print Network (OSTI)

-driven process; this will be followed by power densities of three new renewable conversions: a thermal station densities resulting from disparities in coal quality, fuel delivery and power plant operation. The highest capacity of 1 GWe) mine-mouth power plant (supplied by high-capacity conveyors or short-haul trucking

Smil, Vaclav

474

A Cartesian grid embedded boundary method for the heat equation and Poissons equation in three dimensions  

E-Print Network (OSTI)

A Cartesian grid embedded boundary method for the heat equation and Poisson?s equation in three­85] and extends work of McCorquodale, Colella and Johansen [A Cartesian grid embedded boundary method for the heat and time for the heat equation. Cartesian grid methods for elliptic PDE have a long history beginning with the no

475

A cartesian grid embedded boundary method for the heat equation and poisson's equation in three dimensions  

E-Print Network (OSTI)

A Cartesian grid embedded boundary method for the heatA Cartesian Grid Embedded Boundary Method for the HeatError Grid Size Fig. 17. Solution error for heat equation on

Schwartz, Peter; Barad, Michael; Colella, Phillip; Ligocki, Terry

2004-01-01T23:59:59.000Z

476

US-IRANIAN COMPETITION: THE GULF MILITARY BALANCE- I The Conventional and Asymmetric Dimensions TENTH EDITION  

E-Print Network (OSTI)

This analysis draws on the work of Dr. Abdullah Toukan and a series of reports on Iran by Adam Seitz, a Senior Research Associate

H. Cordesman; Er Wilner; Michael Gibbs; Scott Modell; Anthony H. Cordesman

2013-01-01T23:59:59.000Z

477

Public views on multiple dimensions of security : nuclear waepons, terrorism, energy, and the environment : 2007.  

Science Conference Proceedings (OSTI)

We analyze and compare findings from identical national surveys of the US general public on nuclear security and terrorism administered by telephone and Internet in mid-2007. Key areas of investigation include assessments of threats to US security; valuations of US nuclear weapons and nuclear deterrence; perspectives on nuclear proliferation, including the specific cases of North Korea and Iran; and support for investments in nuclear weapons capabilities. Our analysis of public views on terrorism include assessments of the current threat, progress in the struggle against terrorism, preferences for responding to terrorist attacks at different levels of assumed casualties, and support for domestic policies intended to reduce the threat of terrorism. Also we report findings from an Internet survey conducted in mid 2007 that investigates public views of US energy security, to include: energy supplies and reliability; energy vulnerabilities and threats, and relationships among security, costs, energy dependence, alternative sources, and research and investment priorities. We analyze public assessments of nuclear energy risks and benefits, nuclear materials management issues, and preferences for the future of nuclear energy in the US. Additionally, we investigate environmental issues as they relate to energy security, to include expected implications of global climate change, and relationships among environmental issues and potential policy options.

Herron, Kerry Gale (University of Oklahoma, Norman, OK); Jenkins-Smith, Hank C. (University of Oklahoma, Norman, OK)

2008-01-01T23:59:59.000Z

478

Horizon Mechanics and Asymptotic Symmetries with a Immirzi-like Parameter in 2+1 Dimensions  

E-Print Network (OSTI)

Starting with a generalized theory of 2+1 gravity containing an Immirzi like parameter, we derive the modified laws of black hole mechanics using the formalism of weak isolated horizons. Definitions of horizon mass and angular momentum emerge naturally in this framework. We further go on to analyze the asymptotic symmetries, as first discussed by Brown and Henneaux, and analyze their implications in a completely covariant phase space framework.

Rudranil Basu; Ayan Chatterjee

2011-01-14T23:59:59.000Z

479

2D Gravity with Torsion, Oriented Matroids and 2+2 Dimensions  

E-Print Network (OSTI)

We find a link between oriented matroid theory and 2d gravity with torsion. Our considerations may be useful in the context of noncommutative phase space in a target spacetime of signature (2+2) and in a possible theory of gravity ramification.

J. A. Nieto; E. A. Leon

2009-05-21T23:59:59.000Z

480

Markov semigroups with hypocoercive-type generator in Infinite Dimensions I: Ergodicity and Smoothing  

E-Print Network (OSTI)

We prove the existence of infinite dimensional dynamics generated by interacting dissipative Markov operators of hypocoercive type. For such dynamics we study short and long time behaviour of all the derivatives as well as strong ergodicity.

V. Kontis; M. Ottobre; B. Zegarlinski

2013-06-27T23:59:59.000Z

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


481

Markov semigroups with hypocoercive-type generator in Infinite Dimensions II: Applications  

E-Print Network (OSTI)

In this paper we show several applications of the general theory developed in \\cite{MV_I}, where we studied smoothing and ergodicity for infinite dimensional Markovian systems with hypocoercive type generator.

V. Kontis; M. Ottobre; B. Zegarlinski

2013-06-27T23:59:59.000Z

482

Colle-Salvetti-type local density functional for the exchange-correlation energy in two dimensions  

Science Conference Proceedings (OSTI)

We derive an approximate local density functional for the exchange-correlation energy to be used in density-functional calculations of two-dimensional systems. In the derivation we employ the Colle-Salvetti wave function within the scheme of Salvetti and Montagnani [Phys. Rev. A 63, 052109 (2001)] to satisfy the sum rule for the exchange-correlation hole. We apply the functional to the two-dimensional homogeneous electron gas as well as to a set of quantum dots and find a very good agreement with exact reference data.

Sakiroglu, S. [Nanoscience Center, Department of Physics, University of Jyvaeskylae, P. O. Box 35, FI-40014 Jyvaeskylae (Finland); Physics Department, Faculty of Arts and Sciences, Dokuz Eyluel University, 35160 Izmir (Turkey); Raesaenen, E. [Nanoscience Center, Department of Physics, University of Jyvaeskylae, P. O. Box 35, FI-40014 Jyvaeskylae (Finland)

2010-07-15T23:59:59.000Z

483

Real Time Location Tool For Precision Tracking Of Passive UHF RFID Tags In Two Dimensions.  

E-Print Network (OSTI)

??Bredow, Jonathan This thesis addresses this problem of a precise RTLS (Real Time Location System) by implementing a Passive UHF RFID system. A software is (more)

Kenarangui, Nasir

2011-01-01T23:59:59.000Z

484

Dynamics of Viral Packaging: Single-Molecule Observations in Multiple Dimensions  

E-Print Network (OSTI)

unwinding mechanism of HCVNS3 helicase and its coordinationin a replicative hexameric helicase. Nature 442, 270-275.conformation of the E-coli Rep helicase monomer bound to a

Hetherington, Craig Lee

2011-01-01T23:59:59.000Z

485

Gene Expression in the Third Dimension: The ECM-nucleus Connection  

SciTech Connect

Decades ago, we and others proposed that the dynamic interplay between a cell and its surrounding environment dictates cell phenotype and tissue structure. Whereas much has been discovered about the effects of extracellular matrix molecules on cell growth and tissue specific gene expression, the nuclear mechanisms through which these molecules promote these physiological events remain unknown. Using mammary epithelial cells as a model, the purpose of this review is to discuss how the extracellular matrix influences nuclear structure and function in a three-dimensional context to promote epithelial morphogenesis and function in the mammary gland.

Spencer, Virginia A; Xu, Ren; Bissell, Mina

2009-10-01T23:59:59.000Z

486

Pullback of the volume form, integrable models in higher dimensions and exotic textures  

Science Conference Proceedings (OSTI)

A procedure allowing for the construction of Lorentz invariant integrable models living in d+1 dimensional space time and with an n dimensional target space is provided. Here, integrability is understood as the existence of the generalized zero curvature formulation and infinitely many conserved quantities. A close relation between the Lagrange density of the integrable models and the pullback of the pertinent volume form on target space is established. Moreover, we show that the conserved currents are Noether currents generated by the volume-preserving diffeomorphisms. Further, we show how such models may emerge via Abelian projection of some gauge theories. Then we apply this framework to the construction of integrable models with exotic textures. Particularly, we consider integrable models providing exact suspended Hopf maps, i.e., solitons with a nontrivial topological charge of {pi}{sub 4}(S{sup 3}) congruent with Z{sub 2}. Finally, some families of integrable models with solitons of {pi}{sub n}(S{sup n}) type are constructed. Infinitely many exact solutions with arbitrary value of the topological index are found. In addition, we demonstrate that they saturate a Bogomolny bound.

Adam, C.; Klimas, P.; Sanchez-Guillen, J. [Departamento de Fisica de Particulas, Universidad de Santiago, E-15782 Santiago de Compostela (Spain) and Instituto Galego de Fisica de Altas Enerxias (IGFAE), E-15782 Santiago de Compostela (Spain); Wereszczynski, A. [Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland); Niels Bohr Institute, Copenhagen University, Blegdamsvej 17, DK-2100 Copenhagen O (Denmark)

2009-02-15T23:59:59.000Z

487

The symmetries of the Dirac-Pauli equation in two and three dimensions  

Science Conference Proceedings (OSTI)

We calculate all symmetries of the Dirac-Pauli equation in two-dimensional and three-dimensional Euclidean space. Further, we use our results for an investigation of the issue of zero mode degeneracy. We construct explicitly a class of multiple zero modes with their gauge potentials.

Adam, C.; Sanchez-Guillen, J. [Departamento de Fisica de Particulas, Facultad de Fisica, Universidad de Santiago, E-15706 Santiago de Compostela (Spain); Instituto Galego de Fisica de Altas Enerxias, E-15706 Santiago de Compostela (Spain)

2005-05-01T23:59:59.000Z

488

Dimensioning and configuration of EES systems for electric vehicles with boundary-conditioned adaptive scalarization  

Science Conference Proceedings (OSTI)

Electric vehicles (EVs) are widely considered as a solution for efficient, sustainable and intelligent transportation. An electrical energy storage (EES) system is the most important component in an EV in terms of performances and cost. This work proposes ...

Wanli Chang; Martin Lukasiewycz; Sebastian Steinhorst; Samarjit Chakraborty

2013-09-01T23:59:59.000Z

489

The ethnic dimension of alliance formation alignment patterns in the Nagorno-Karabakh conflict .  

E-Print Network (OSTI)

??The purpose of this thesis is to analyze the alignment behaviors of Armenia and Azerbaijan during and after the Nagorno-Karabakh conflict and the effects of (more)

San, Hakan

2007-01-01T23:59:59.000Z

490

The moduli space of hypersurfaces whose singular locus has high dimension  

E-Print Network (OSTI)

Fix integers n and b with n =/> 3 and 1 =/< b < n - 1. Let k be an algebraically closed field. Consider the moduli space X of hypersurfaces in P" of fixed degree I whose singular locus is at least b-dimensional. We prove ...

Slavov, Kaloyan (Kaloyan Stefanov)

2011-01-01T23:59:59.000Z

491

Distinguishing spins in supersymmetric and universal extra dimension models at the large hadron collider.  

E-Print Network (OSTI)

to verify the UED spin assignments if the spectrum is quasi-degenerate like that in table 1. The SUSY mass spectrum, on the other hand, does ?01 ? 0 2 uL eR eL 96 177 537 143 202 Table 2: SUSY masses in GeV, for SPS point 1a. not naturally have the same...

Smillie, Jennifer M; Webber, Bryan R

492

Towards front-tracking based on conservation in two space dimensions III, tracking interfaces  

Science Conference Proceedings (OSTI)

This is the third paper in the series of our conservative front-tracking method. In this paper, we describe how our method tracks fluid interfaces in multi-fluid flows. Two important ingredients in our conservative front-tracking method in tracking fluid ... Keywords: Conservative front-tracking, Fluid interface, Numerical surface dissipation, Velocity and pressure equilibrium

Mohammed Aman Ullah, Wenbin Gao, De-Kang Mao

2013-06-01T23:59:59.000Z

493

Large N QCD in two dimensions with a baryonic chemical potential  

E-Print Network (OSTI)

We consider large N gauge theory on a two dimensional lattice in the presence of a baryonic chemical potential. We work with one copy of naive fermion and argue that reduction holds even in the presence of a chemical potential. Analytical arguments supported by numerical studies show that there is no phase transition as a function of the baryonic chemical potential.

Galvez, Richard; Narayanan, Rajamani

2008-01-01T23:59:59.000Z

494

dimensions Package FiPy 3.0.1-dev144-g950431e ...  

Science Conference Proceedings (OSTI)

... 1 acres = 4046.8564224 m**2 1 amu = 1.6605402e-27 kg 1 Ang = 1e-10 m 1 atm = 101325.0 kg/s**2/m 1 b = 1e-28 m 1 bar = 100000.0 kg/s**2/m ...

2013-07-19T23:59:59.000Z

495

Application of Thin-Plate Splines in Two Dimensions to Oceanographic Tracer Data  

Science Conference Proceedings (OSTI)

This study explores the utility of the thin-plate spline (TPS) as a mapping procedure for oceanographic sections of bottle data in comparison with objective mapping (OM), sometimes referred to as objective interpolation. Standard OM techniques in ...

David S. Trossman; LuAnne Thompson; Susan L. Hautala

2011-11-01T23:59:59.000Z

496

A Simulation Tool for Dimensioning and Performance Evaluation of the UMTS Terrestrial Radio Access Network  

Science Conference Proceedings (OSTI)

The efficient support of multiple traffic classes with different quality of service requirements (end-to-end delay, jitter, loss) poses an extraordinary complexity in the design of third-generation mobile networks. This task becomes especially critical ...

A. B. Garca; E. Garca; Manuel Alvarez-Campana; Julio Berrocal; Enrique Vzquez

2002-11-01T23:59:59.000Z

497

Equilibrium Critical Dimension for a InAs/GaAs Quantum Dot ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, Semiconductor Heterostructures: Theory, Growth, Characterization, and Device...

498

Noisy matrix decomposition via convex relaxation: Optimal rates in high dimensions  

E-Print Network (OSTI)

We analyze a class of estimators based on convex relaxation for solving high-dimensional matrix decomposition problems. The observations are noisy realizations of a linear transformation [bar through "X" symbol] of the sum ...

Agarwal, Alekh

499

Higgs mechanism as a collective effect due to an extra dimension  

Science Conference Proceedings (OSTI)

the chiral lepton SU(2) multiplets, and the dots denote similar terms for quark fields. The minimum of ..... The fields Xi, which may produce nonpositive-norm states, enter the interaction only in the combina- tions. ? = ? ? ..... search (Grant No.

500

Evaluating and Aggregating Data Believability across Quality Sub-Dimensions and Data Lineage  

E-Print Network (OSTI)

Data quality is crucial for operational efficiency and sound decision making. This paper focuses on believability,

Prat, Nicolas

2008-01-11T23:59:59.000Z