Sample records for tilt steering wheel

  1. Control of Sideslip and Yaw Rate inControl of Sideslip and Yaw Rate in 44--Wheel Steering CarsWheel Steering Cars

    E-Print Network [OSTI]

    Williamson, John

    ! "!!# Control of Sideslip and Yaw Rate inControl of Sideslip and Yaw Rate in 44--Wheel Steering Abstract A new steering control structure for cars equipped with 4-wheel steering is presented. This control structure is based on a simplified linear model that captures the main features of the lateral

  2. Electric Power Controller for Steering Wheel Management in Electric Cars

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Electric Power Controller for Steering Wheel Management in Electric Cars Vicente Milanés, Joshué. An electric car has been equipped with the system designed and tests to prove the behavior of the system transportation systems. Among these topics, the automation of the actuators involved in the management of a car

  3. Method for controlling a vehicle with two or more independently steered wheels

    DOE Patents [OSTI]

    Reister, D.B.; Unseren, M.A.

    1995-03-28T23:59:59.000Z

    A method is described for independently controlling each steerable drive wheel of a vehicle with two or more such wheels. An instantaneous center of rotation target and a tangential velocity target are inputs to a wheel target system which sends the velocity target and a steering angle target for each drive wheel to a pseudo-velocity target system. The pseudo-velocity target system determines a pseudo-velocity target which is compared to a current pseudo-velocity to determine a pseudo-velocity error. The steering angle targets and the steering angles are inputs to a steering angle control system which outputs to the steering angle encoders, which measure the steering angles. The pseudo-velocity error, the rate of change of the pseudo-velocity error, and the wheel slip between each pair of drive wheels are used to calculate intermediate control variables which, along with the steering angle targets are used to calculate the torque to be applied at each wheel. The current distance traveled for each wheel is then calculated. The current wheel velocities and steering angle targets are used to calculate the cumulative and instantaneous wheel slip and the current pseudo-velocity. 6 figures.

  4. Method for controlling a vehicle with two or more independently steered wheels

    DOE Patents [OSTI]

    Reister, David B. (Oak Ridge, TN); Unseren, Michael A. (Knoxville, TN)

    1995-01-01T23:59:59.000Z

    A method (10) for independently controlling each steerable drive wheel (W.sub.i) of a vehicle with two or more such wheels (W.sub.i). An instantaneous center of rotation target (ICR) and a tangential velocity target (v.sup.G) are inputs to a wheel target system (30) which sends the velocity target (v.sub.i.sup.G) and a steering angle target (.theta..sub.i.sup.G) for each drive wheel (W.sub.i) to a pseudovelocity target system (32). The pseudovelocity target system (32) determines a pseudovelocity target (v.sub.P.sup.G) which is compared to a current pseudovelocity (v.sub.P.sup.m) to determine a pseudovelocity error (.epsilon.). The steering angle targets (.theta..sup.G) and the steering angles (.theta..sup.m) are inputs to a steering angle control system (34) which outputs to the steering angle encoders (36), which measure the steering angles (.theta..sup.m). The pseudovelocity error (.epsilon.), the rate of change of the pseudovelocity error ( ), and the wheel slip between each pair of drive wheels (W.sub.i) are used to calculate intermediate control variables which, along with the steering angle targets (.theta..sup.G) are used to calculate the torque to be applied at each wheel (W.sub.i). The current distance traveled for each wheel (W.sub.i) is then calculated. The current wheel velocities (v.sup.m) and steering angle targets (.theta..sup.G) are used to calculate the cumulative and instantaneous wheel slip (e, ) and the current pseudovelocity (v.sub.P.sup.m).

  5. Continuous Control Primitive Trajectory Generation and Optimal Motion Splines for All-Wheel Steering Mobile

    E-Print Network [OSTI]

    Kelly, Alonzo

    algorithms based on the Ackermann, differential drive, or omnidirectional steering models. Ackerman with all-wheel steering capability differ from these models in that the velocity vector can be aimed in anyContinuous Control Primitive Trajectory Generation and Optimal Motion Splines for All

  6. MODELING OF SKID-STEERED WHEELED ROBOTIC VEHICLES ON SLOPED TERRAINS

    E-Print Network [OSTI]

    Collins, Emmanuel

    MODELING OF SKID-STEERED WHEELED ROBOTIC VEHICLES ON SLOPED TERRAINS Camilo Ordonez Center radii. This work presents the analysis and experimental verification of a dynamic model for skid-steered for Intelligent Systems, Controls and Robotics (CISCOR) Department of Mechanical Engineering Florida A

  7. Vibrotactile Feedback in Steering Wheel Reduces Navigation Errors during GPS-Guided Car Driving

    E-Print Network [OSTI]

    Basdogan, Cagatay

    vibration motors are mounted onto the steering wheel of a driving simulator and driving experiments-based car navigation system to improve the navigation performance of a driver. In [5], vibration motors were auditory noise and distraction exist in the environment, the navigation errors (making a wrong turn

  8. The role of the cant and lateral position of the steering wheel in the orientation of drivers to the location of the automotive pedals

    E-Print Network [OSTI]

    Sherrod, M. G

    1989-01-01T23:59:59.000Z

    examined the effects of three steering wheel cants and three steering wheel lateral positions on drivers' preferred automotive foot pedal locations and separation distances. The dependent variables were the preferred vertical and horizontal positions... in orienting the driver to the locations of the pedals and should be part of any design recommendations detailing the relationship between the driver and the foot pedals. ACKNOWLEDGEMENTS I would like to thank the chairman of my Advisory Committee, Dr...

  9. Tip-up and stabilization of an autonomous four-wheeled vehicle

    E-Print Network [OSTI]

    Lan, Justin T

    2011-01-01T23:59:59.000Z

    An instrumented four-wheeled robot was constructed to investigate steering-induced tip-up and rollover of four-wheeled vehicles, and the possibility of stabilizing and driving while balanced on two wheels. Using an analogy ...

  10. Steering system for a train of rail-less vehicles

    DOE Patents [OSTI]

    Voight, Edward T. (Worthington, OH)

    1983-01-01T23:59:59.000Z

    A steering system for use with a multiple vehicle train permits tracking without rails of one vehicle after another. This system is particularly useful for moving conveyor systems into and out of curved paths of room and pillar underground mine installations. The steering system features an elongated steering bar pivotally connected to each of adjacent vehicles at end portions of the bar permitting angular orientation of each vehicle in respect to the steering bar and other vehicles. Each end portion of the steering bar is linked to the near pair of vehicle wheels through wheel yoke pivot arms about king pin type pivots. Movement of the steering bar about its pivotal connection provides proportional turning of the wheels to effect steering and tracking of one vehicle following another in both forward and reverse directions.

  11. On Steady-State Cornering Equilibria for Wheeled Vehicles with Drift Efstathios Velenis, Emilio Frazzoli and Panagiotis Tsiotras

    E-Print Network [OSTI]

    Tsiotras, Panagiotis

    wheel steering controller appeared in [14]. The authors of that work used a single-track vehicle model (independent braking control on all four wheels) [1], active steering [2], [3], and, more recently, via including differential braking, traction control, active steering and sus- pension. Alternative means

  12. Modeling an automobile steering system using Axiomatic Design's Design Matrix and the Design Structure Matrix

    E-Print Network [OSTI]

    Bagley, Matthew R., 1966-

    2005-01-01T23:59:59.000Z

    The automobile steering system can be thought of as a system within a system. The steering system has clear functions and requirements as well as many interrelated components and subsystems including the front tires, wheels, ...

  13. Just build it! : a fully functional concept vehicle using robotic wheels

    E-Print Network [OSTI]

    Schmitt, Peter, S.M. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    Interest in electric vehicle drive units is resurging with the proliferation of hybrid and electric vehicles. Currently emerging key-technologies are: in-wheel motors, electric braking, integrated steering activators and ...

  14. Steer Feeding.

    E-Print Network [OSTI]

    Connel, J. H.; Carson, J. W.

    1896-01-01T23:59:59.000Z

    succeeded in feeding 1 pound o f meal to 6 .3 pounds o f hulls with good results. (2) We attempted to reverse this first ration with another pen, and feed as nearly all meal and no hulls as the health o f the steers would permit. We succeeded...' hulls. Cost per pound gained was 6.51 cents. R e m a r k s .? Regardless of the scale of prices here assumed in calcu? lating the cost of rations, the mixture fed pen ? D ,? consisting of a maximum of hulls and a minimum of meal, proved most...

  15. Motion Planning for an Omnidirectional Robot with Steering Constraints

    E-Print Network [OSTI]

    Kabanza, Froduald

    to control the kinematics of a wheeled omnidirectional robot. For AZIMUT, we chose to model the velocityMotion Planning for an Omnidirectional Robot with Steering Constraints Simon Chamberland, Éric manoeuvrability in natural environments. Modeling the kinematics of such robots is a challenging problem

  16. Grinding Wheel System

    DOE Patents [OSTI]

    Malkin, Stephen (Amherst, MA); Gao, Robert (Amherst, MA); Guo, Changsheng (South Windsor, CT); Varghese, Biju (Worthington, OH); Pathare, Sumukh (Waltham, MA)

    2003-08-05T23:59:59.000Z

    A grinding wheel system includes a grinding wheel with at least one embedded sensor. The system also includes an adapter disk containing electronics that process signals produced by each embedded sensor and that transmits sensor information to a data processing platform for further processing of the transmitted information.

  17. Grinding Wheel System

    DOE Patents [OSTI]

    Malkin, Stephen (Amherst, MA); Gao, Robert (Amherst, MA); Guo, Changsheng (South Windsor, CT); Varghese, Biju (Worthington, OH); Pathare, Sumukh (Waltham, MA)

    2006-01-10T23:59:59.000Z

    A grinding wheel system includes a grinding wheel with at least one embedded sensor. The system also includes an adapter disk containing electronics that process signals produced by each embedded sensor and that transmits sensor information to a data processing platform for further processing of the transmitted information.

  18. Wheeled hopping robot

    DOE Patents [OSTI]

    Fischer, Gary J. (Albuquerque, NM)

    2010-08-17T23:59:59.000Z

    The present invention provides robotic vehicles having wheeled and hopping mobilities that are capable of traversing (e.g. by hopping over) obstacles that are large in size relative to the robot and, are capable of operation in unpredictable terrain over long range. The present invention further provides combustion powered linear actuators, which can include latching mechanisms to facilitate pressurized fueling of the actuators, as can be used to provide wheeled vehicles with a hopping mobility.

  19. Vehicle having hydraulic and power steering systems using a single high pressure pump

    DOE Patents [OSTI]

    Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

    2001-06-22T23:59:59.000Z

    A vehicle comprises a plurality of wheels attached to a vehicle housing. Also attached to the vehicle housing is a power steering system, including a fluid flow circuit, which is operably coupled to a number of the wheels. An internal combustion engine attached to the vehicle housing is connected to a hydraulically actuated system that includes a high pressure pump. An outlet of the high pressure pump is in fluid communication with the fluid flow circuit.

  20. Geospatial Science Steering Committee

    Broader source: Energy.gov [DOE]

    The Geospatial Science Steering Committee (GSSC) functions in an advisory role to the DOE national laboratories, major facilities, and to headquarters and field office elements to actively promote...

  1. Modeling and Simulation of a Two wheeled vehicle with suspensions by using Robotic Formalism

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , France (Philippe.chevrel@emn.fr) Abstract: Models, simulators and control strategies are required tools in various situations (e.g. for control application) as simplified model for 3 or 4 wheeled (tilting) cars. In that way, the dynamic model is easy to implement and the system can be used for control applications

  2. The Tilt Intonation Model 

    E-Print Network [OSTI]

    Taylor, Paul

    The tilt intonation model facilitates automatic analysis and synthesis of intonation. The analysis algorithm detects intonational events in F0 contours and parameterises them in terms of the continuously varying parameters. ...

  3. Fault-tolerance in an Embedded Steering Robot: a hybrid approach

    E-Print Network [OSTI]

    Cuijpers, Pieter

    , i.e. using the actual steering wheel, fuel paddle and braking paddle. For such an autonomous robot is a device capable of driving a vehicle fully automatically using the same interface as a human driver does- lab/Simulink to simulate the behavior of the whole system: vehicle, robot and embedded software

  4. Automatic Mechetronic Wheel Light Device

    DOE Patents [OSTI]

    Khan, Mohammed John Fitzgerald (Silver Spring, MD)

    2004-09-14T23:59:59.000Z

    A wheel lighting device for illuminating a wheel of a vehicle to increase safety and enhance aesthetics. The device produces the appearance of a "ring of light" on a vehicle's wheels as the vehicle moves. The "ring of light" can automatically change in color and/or brightness according to a vehicle's speed, acceleration, jerk, selection of transmission gears, and/or engine speed. The device provides auxiliary indicator lights by producing light in conjunction with a vehicle's turn signals, hazard lights, alarm systems, and etc. The device comprises a combination of mechanical and electronic components and can be placed on the outer or inner surface of a wheel or made integral to a wheel or wheel cover. The device can be configured for all vehicle types, and is electrically powered by a vehicle's electrical system and/or battery.

  5. Transmission Issues Policy Steering Committee

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

    Business Practices CommitteesTeams Joint Operating Committee Transmission Issues Policy Steering Committee Customer Training Interconnection Notices Rates Standards of...

  6. Wheel-type magnetic refrigerator

    DOE Patents [OSTI]

    Barclay, John A. (Los Alamos, NM)

    1983-01-01T23:59:59.000Z

    The disclosure is directed to a wheel-type magnetic refrigerator capable of cooling over a large temperature range. Ferromagnetic or paramagnetic porous materials are layered circumferentially according to their Curie temperature. The innermost layer has the lowest Curie temperature and the outermost layer has the highest Curie temperature. The wheel is rotated through a magnetic field perpendicular to the axis of the wheel and parallel to its direction of rotation. A fluid is pumped through portions of the layers using inner and outer manifolds to achieve refrigeration of a thermal load.

  7. Wheel-type magnetic refrigerator

    DOE Patents [OSTI]

    Barclay, J.A.

    1982-01-20T23:59:59.000Z

    The disclosure is directed to a wheel-type magnetic refrigerator capable of cooling over a large temperature range. Ferromagnetic or paramagnetic porous materials are layered circumferentially according to their Curie temperature. The innermost layer has the lowest Curie temperature and the outermost layer has the highest Curie temperature. The wheel is rotated through a magnetic field perpendicular to the axis of the wheel and parallel to its direction of rotation. A fluid is pumped through portions of the layers using inner and outer manifolds to achieve refrigeration of a thermal load.

  8. Wheel-type magnetic refrigerator

    DOE Patents [OSTI]

    Barclay, J.A.

    1983-10-11T23:59:59.000Z

    The disclosure is directed to a wheel-type magnetic refrigerator capable of cooling over a large temperature range. Ferromagnetic or paramagnetic porous materials are layered circumferentially according to their Curie temperature. The innermost layer has the lowest Curie temperature and the outermost layer has the highest Curie temperature. The wheel is rotated through a magnetic field perpendicular to the axis of the wheel and parallel to its direction of rotation. A fluid is pumped through portions of the layers using inner and outer manifolds to achieve refrigeration of a thermal load. 7 figs.

  9. Rim seal for turbine wheel

    DOE Patents [OSTI]

    Glezer, Boris (Del Mar, CA); Boyd, Gary L. (Alpine, CA); Norton, Paul F. (San Diego, CA)

    1996-01-01T23:59:59.000Z

    A turbine wheel assembly includes a disk having a plurality of blades therearound. A ceramic ring is mounted to the housing of the turbine wheel assembly. A labyrinth rim seal mounted on the disk cooperates with the ceramic ring to seal the hot gases acting on the blades from the disk. The ceramic ring permits a tighter clearance between the labyrinth rim seal and the ceramic ring.

  10. Tilted-mirror semiconductor lasers

    SciTech Connect (OSTI)

    Salzman, J.; Lang, R.; Margalit, S.; Yariv, A.

    1985-07-01T23:59:59.000Z

    Broad-area GaAs heterostructure lasers with a tilted mirror were demonstrated for the first time, with the tilted mirror fabricated by etching. These lasers operate in a smooth and stable single lateral mode with a high degree of spatial coherence. The suppression of filamentation manifests itself in a high degree of reproducibility in the near-field pattern.

  11. Control of Motorcycle Steering Instabilities

    E-Print Network [OSTI]

    Cambridge, University of

    Control of Motorcycle Steering Instabilities SIMOS EVANGELOU, DAVID J.N. LIMEBEER, ROBIN S. SHARP, and MALCOLM C. SMITH dvances in modeling bicycle and motor- cycle dynamics are providing improved of these modes are wobble and weave. Wobble is a steering oscillation that is reminis- cent of the caster shimmy

  12. Fluid observers and tilting cosmology

    E-Print Network [OSTI]

    A. A. Coley; S. Hervik; W. C. Lim

    2006-05-24T23:59:59.000Z

    We study perfect fluid cosmological models with a constant equation of state parameter $\\gamma$ in which there are two naturally defined time-like congruences, a geometrically defined geodesic congruence and a non-geodesic fluid congruence. We establish an appropriate set of boost formulae relating the physical variables, and consequently the observed quantities, in the two frames. We study expanding spatially homogeneous tilted perfect fluid models, with an emphasis on future evolution with extreme tilt. We show that for ultra-radiative equations of state (i.e., $\\gamma>4/3$), generically the tilt becomes extreme at late times and the fluid observers will reach infinite expansion within a finite proper time and experience a singularity similar to that of the big rip. In addition, we show that for sub-radiative equations of state (i.e., $\\gamma < 4/3$), the tilt can become extreme at late times and give rise to an effective quintessential equation of state. To establish the connection with phantom cosmology and quintessence, we calculate the effective equation of state in the models under consideration and we determine the future asymptotic behaviour of the tilting models in the fluid frame variables using the boost formulae. We also discuss spatially inhomogeneous models and tilting spatially homogeneous models with a cosmological constant.

  13. Texas Show Steer Breed Classification

    E-Print Network [OSTI]

    Cleere, Jason; Mazurkiewicz, Jim; Hammack, Stephen P.

    2008-02-28T23:59:59.000Z

    . This publication lists the visual characteristics of Angus, Hereford, Polled Hereford, Red Angus, Shorthorn, American Breeds Cross, Brahman, Brangus, Santa Gertrudis, Simbrah, Charolais, Chianina, Limousin, Maine Anjou and Simmental steers....

  14. Aerodynamic Drag Reduction Apparatus For Wheeled Vehicles In Ground Effect

    DOE Patents [OSTI]

    Ortega, Jason M. (Pacifica, CA); Salari, Kambiz (Livermore, CA)

    2005-12-13T23:59:59.000Z

    An apparatus for reducing the aerodynamic drag of a wheeled vehicle in a flowstream, the vehicle having a vehicle body and a wheel assembly supporting the vehicle body. The apparatus includes a baffle assembly adapted to be positioned upstream of the wheel assembly for deflecting airflow away from the wheel assembly so as to reduce the incident pressure on the wheel assembly.

  15. Bradbury Science Museum - Science on Wheels

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

    Bradbury Science Museum - Science on Wheels Our Mission: To stimulate interest in and enthusiasm for science, technology, engineering and mathematics and promote public...

  16. Method for removing tilt control in adaptive optics systems

    DOE Patents [OSTI]

    Salmon, Joseph Thaddeus (Livermore, CA)

    1998-01-01T23:59:59.000Z

    A new adaptive optics system and method of operation, whereby the method removes tilt control, and includes the steps of using a steering mirror to steer a wavefront in the desired direction, for aiming an impinging aberrated light beam in the direction of a deformable mirror. The deformable mirror has its surface deformed selectively by means of a plurality of actuators, and compensates, at least partially, for existing aberrations in the light beam. The light beam is split into an output beam and a sample beam, and the sample beam is sampled using a wavefront sensor. The sampled signals are converted into corresponding electrical signals for driving a controller, which, in turn, drives the deformable mirror in a feedback loop in response to the sampled signals, for compensating for aberrations in the wavefront. To this purpose, a displacement error (gradient) of the wavefront is measured, and adjusted by a modified gain matrix, which satisfies the following equation: G'=(I-X(X.sup.T X).sup.-1 X.sup.T)G(I-A)

  17. Method for removing tilt control in adaptive optics systems

    DOE Patents [OSTI]

    Salmon, J.T.

    1998-04-28T23:59:59.000Z

    A new adaptive optics system and method of operation are disclosed, whereby the method removes tilt control, and includes the steps of using a steering mirror to steer a wavefront in the desired direction, for aiming an impinging aberrated light beam in the direction of a deformable mirror. The deformable mirror has its surface deformed selectively by means of a plurality of actuators, and compensates, at least partially, for existing aberrations in the light beam. The light beam is split into an output beam and a sample beam, and the sample beam is sampled using a wavefront sensor. The sampled signals are converted into corresponding electrical signals for driving a controller, which, in turn, drives the deformable mirror in a feedback loop in response to the sampled signals, for compensating for aberrations in the wavefront. To this purpose, a displacement error (gradient) of the wavefront is measured, and adjusted by a modified gain matrix, which satisfies the following equation: G{prime} = (I{minus}X(X{sup T} X){sup {minus}1}X{sup T})G(I{minus}A). 3 figs.

  18. Fermilab Steering Group Report

    SciTech Connect (OSTI)

    Beier, Eugene; /Pennsylvania U.; Butler, Joel; /Fermilab; Dawson, Sally; /Brookhaven; Edwards, Helen; /Fermilab; Himel, Thomas; /SLAC; Holmes, Stephen; /Fermilab; Kim, Young-Kee; /Fermilab /Chicago U.; Lankford, Andrew; /UC, Irvine; McGinnis, David; /Fermilab; Nagaitsev, Sergei; /Fermilab; Raubenheimer, Tor; /SLAC /Fermilab

    2007-01-01T23:59:59.000Z

    The Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOVA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the industrialization of ILC components in the U.S. and creating an engineering opportunity for ILC cost reductions. It offers an early and tangible application for ILC R&D in superconducting technology, attracting participation from accelerator scientists worldwide and driving forward the technology for still higher-energy accelerators of the future, such as a muon collider. To prepare for a future decision, the Fermilab Steering Group recommends that the laboratory seek R&D support for Project X, in order to produce an overall design of Project X and to spur the R&D and industrialization of ILC linac components needed for Project X. Advice from the High Energy Physics Advisory Panel will guide any future decision to upgrade the Fermilab accelerator complex, taking into account developments affecting the ILC schedule and the continuing evaluation of scientific priorities for U.S. particle physics. Fermilab should also work toward increased resources for longer-term future accelerators such as a muon collider, aiming at higher energies than the ILC would provide.

  19. TILT STABILITY, UNIFORM QUADRATIC GROWTH, AND STRONG ...

    E-Print Network [OSTI]

    2012-05-08T23:59:59.000Z

    Tilt stability, variational analysis, subdifferentials, quadratic growth, strong metric .... Some convex analysis. ..... Example 3.5 (Failure of subdifferential continuity).

  20. Steering Behaviors for Autonomous Cameras Quentin Galvane

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . The system relies on Reynolds' model of steering behaviors to control and locally coordinate a col- lection and Realism--Animation; Keywords: camera control, boids, steering behavior 1 Introduction Crowd simulationsSteering Behaviors for Autonomous Cameras Quentin Galvane INRIA / LJK, Grenoble, France Marc

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

    Energy Savers [EERE]

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

  2. Neurobiological and Physiological Underpinnings of High Voluntary Wheel Running

    E-Print Network [OSTI]

    Kolb, Erik Mason

    2010-01-01T23:59:59.000Z

    for high voluntary wheel running. Physiol. Behav. 83, 515-for high voluntary wheel-running: effect on skeletal musclefor high endurance running increases hindlimb symmetry.

  3. WIF Steering Committee 5/14/12 Steering Committee Attendees

    E-Print Network [OSTI]

    loads also were found to have flexibility. Irrigation, server farms, commercial bldg, cooling systems to the power system to address the oversupply issue. Asked the Steering Committee members to each appoint recommendations for future study. Didn't have resources to delve too deeply, but were able to winnow out those

  4. Notes 16. Analysis of tilting pad bearings

    E-Print Network [OSTI]

    San Andres, Luis

    2010-01-01T23:59:59.000Z

    NOTES 16. STATIC AND DYNAMIC FORCED PERFORMANCE OF TILTING PAD BEARINGS: ANALYSIS INCLUDING PIVOT STIFFNESS Dr. Luis San Andr?s Mast-Childs Professor August 2010 SUMMARY Work in progress ? still a lot of be done Introduction... Figure 1 shows a tilting pad journal bearing comprised of four pads. Each pad tilts about its pivot making a hydrodynamic film that generates a pressure reacting to the static load applied on the spinning journal. This type of bearing is typically...

  5. Balancing a two-wheeled Segway robot

    E-Print Network [OSTI]

    Bageant, Maia R. (Maia Reynolds)

    2011-01-01T23:59:59.000Z

    In this thesis, I designed and constructed hardware for a two-wheeled balancing Segway robot. Because the robot could not be balanced based on a control system derived from the original analytical model, additional system ...

  6. Skid-Steer Loader Safety

    E-Print Network [OSTI]

    Smith, David

    2005-06-28T23:59:59.000Z

    -steer loaders have been used in the construc- tion and landscaping industry for years. They are also common on dairy, beef and swine operations. Unlike conventional tractors, these compact and maneuverable machines allow farmers to enter narrow alleyways... the automatic safety switches. Machine Safeguards Using and maintaining manufacturer-installed safety devices will eliminate many skid-loader injuries and fatalities. Occupational Safety and Health Administration (OSHA) regulations and industry standards...

  7. Optimal planning and control for hazard avoidance of front-wheel steered ground vehicles

    E-Print Network [OSTI]

    Peters, Steven C. (Steven Conrad)

    2012-01-01T23:59:59.000Z

    Hazard avoidance is an important capability for safe operation of robotic vehicles at high speed. It is also an important consideration for passenger vehicle safety, as thousands are killed each year in passenger vehicle ...

  8. Large optics inspection, tilting, and washing stand

    DOE Patents [OSTI]

    Ayers, Marion Jay; Ayers, Shannon Lee

    2012-10-09T23:59:59.000Z

    A large optics stand provides a risk free means of safely tilting large optics with ease and a method of safely tilting large optics with ease. The optics are supported in the horizontal position by pads. In the vertical plane the optics are supported by saddles that evenly distribute the optics weight over a large area.

  9. Large optics inspection, tilting, and washing stand

    DOE Patents [OSTI]

    Ayers, Marion Jay (Brentwood, CA); Ayers, Shannon Lee (Brentwood, CA)

    2010-08-24T23:59:59.000Z

    A large optics stand provides a risk free means of safely tilting large optics with ease and a method of safely tilting large optics with ease. The optics are supported in the horizontal position by pads. In the vertical plane the optics are supported by saddles that evenly distribute the optics weight over a large area.

  10. USAMP/NonDestructive Evaluation Steering Committee (Task Team...

    Energy Savers [EERE]

    USAMPNonDestructive Evaluation Steering Committee (Task Team) USAMPNonDestructive Evaluation Steering Committee (Task Team) Presentation from the U.S. DOE Office of Vehicle...

  11. Risk Management Steering Committee Terms of Reference

    E-Print Network [OSTI]

    Victoria, University of

    Risk Management Steering Committee Terms of Reference October 2009 1.0 Purpose The purposes Facilities Management Risk and Insurance Analyst Associate Vice-President Human Resources Administrative of the Steering Committee are: a) to follow a continuous process to understand and communicate risk from

  12. Reconfigurable wheels : re-inventing the wheel for the next generation of planetary rovers

    E-Print Network [OSTI]

    Baker, Brittany, S.M. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Experiences with Spirit and Opportunity, the twin Mars Exploration Rovers, showed that one of the major issues that needs to be addressed in order to expand the exploration capabilities of planetary rovers is that of wheel ...

  13. Automated beam steering using optimal control

    SciTech Connect (OSTI)

    Allen, C. K. (Christopher K.)

    2004-01-01T23:59:59.000Z

    We present a steering algorithm which, with the aid of a model, allows the user to specify beam behavior throughout a beamline, rather than just at specified beam position monitor (BPM) locations. The model is used primarily to compute the values of the beam phase vectors from BPM measurements, and to define cost functions that describe the steering objectives. The steering problem is formulated as constrained optimization problem; however, by applying optimal control theory we can reduce it to an unconstrained optimization whose dimension is the number of control signals.

  14. Applied grinding wheel performance evaluation for optical fabrication

    SciTech Connect (OSTI)

    Piscotty, M.A.; Taylor, J.S.; Blaedel, K.L.

    1996-06-11T23:59:59.000Z

    We are collaborating with the Center for Optics Manufacturing (Rochester NY) to develop fine diamond grinding wheels for spherical grinding of glass optics. A standardized method for evaluating wheel performance includes in-process acoustic emission (AE). This paper includes recent AE measurements taken during the evaluation of several fine diamond grinding wheels and discusses how this new information might relate to the physical performance of the wheels. An interesting observation is also reported on the surface topography of worn bronze wheels using an interferometric profiler.

  15. Combined Scanning Transmission Electron Microscopy Tilt- and Focal Series

    SciTech Connect (OSTI)

    Dahmen, Tim [German Research Center for Artificial Intelligence (DFKI), Germany] [German Research Center for Artificial Intelligence (DFKI), Germany; Baudoin, Jean-Pierre G [ORNL] [ORNL; Lupini, Andrew R [ORNL] [ORNL; Kubel, Christian [Karlsruhe Institute of Technology, Leopoldshafen, Germany] [Karlsruhe Institute of Technology, Leopoldshafen, Germany; Slusallek, Phillip [German Research Center for Artificial Intelligence (DFKI), Germany] [German Research Center for Artificial Intelligence (DFKI), Germany; De Jonge, Niels [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    In this study, a combined tilt- and focal series is proposed as a new recording scheme for high-angle annular dark-field scanning transmission electron microscopy (STEM) tomography. Three-dimensional (3D) data were acquired by mechanically tilting the specimen, and recording a through-focal series at each tilt direction. The sample was a whole-mount macrophage cell with embedded gold nanoparticles. The tilt focal algebraic reconstruction technique (TF-ART) is introduced as a new algorithm to reconstruct tomograms from such combined tilt- and focal series. The feasibility of TF-ART was demonstrated by 3D reconstruction of the experimental 3D data. The results were compared with a conventional STEM tilt series of a similar sample. The combined tilt- and focal series led to smaller missing wedge artifacts, and a higher axial resolution than obtained for the STEM tilt series, thus improving on one of the main issues of tilt series-based electron tomography.

  16. Tilt assembly for tracking solar collector assembly

    DOE Patents [OSTI]

    Almy, Charles; Peurach, John; Sandler, Reuben

    2012-01-24T23:59:59.000Z

    A tilt assembly is used with a solar collector assembly of the type comprising a frame, supporting a solar collector, for movement about a tilt axis by pivoting a drive element between first and second orientations. The tilt assembly comprises a drive element coupler connected to the drive element and a driver, the driver comprising a drive frame, a drive arm and a drive arm driver. The drive arm is mounted to the drive frame for pivotal movement about a drive arm axis. Movement on the drive arm mimics movement of the drive element. Drive element couplers can extend in opposite directions from the outer portion of the drive arm, whereby the assembly can be used between adjacent solar collector assemblies in a row of solar collector assemblies.

  17. A Wavelet-Based Methodology for Grinding Wheel Condition Monitoring

    SciTech Connect (OSTI)

    Liao, T. W. [Louisiana State University; Ting, C.F. [Louisiana State University; Qu, Jun [ORNL; Blau, Peter Julian [ORNL

    2007-01-01T23:59:59.000Z

    Grinding wheel surface condition changes as more material is removed. This paper presents a wavelet-based methodology for grinding wheel condition monitoring based on acoustic emission (AE) signals. Grinding experiments in creep feed mode were conducted to grind alumina specimens with a resinoid-bonded diamond wheel using two different conditions. During the experiments, AE signals were collected when the wheel was 'sharp' and when the wheel was 'dull'. Discriminant features were then extracted from each raw AE signal segment using the discrete wavelet decomposition procedure. An adaptive genetic clustering algorithm was finally applied to the extracted features in order to distinguish different states of grinding wheel condition. The test results indicate that the proposed methodology can achieve 97% clustering accuracy for the high material removal rate condition, 86.7% for the low material removal rate condition, and 76.7% for the combined grinding conditions if the base wavelet, the decomposition level, and the GA parameters are properly selected.

  18. Mechanical front wheel drive tractors: a field performance study

    E-Print Network [OSTI]

    Babacz, William Adam

    1986-01-01T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . Comparison of 2WD and NFWD Tractors . . . . . . . . . . . . . . . . . . Comparison of NFWD Tractors Operating in FWA and 2WO Modes III TRACTOR PERFORNANCE NONITORING SYSTEM Instrumentation System Rear Axle Torque . Front Axle Driveline Torque Front...-sized tractors and may be operated with the mechanical front wheel drive engaged in a front wheel assist (FWA) mode or disengaged in a two-wheel drive (2WD) mode. The advertised benefits of NFWD are increased traction and reduced fuel consumption. Agricultural...

  19. The cost of noise reduction in commercial tilt rotor aircraft

    E-Print Network [OSTI]

    Faulkner, Henry B.

    1974-01-01T23:59:59.000Z

    The relationship between direct operating cost and departure noise annoyance was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt rotor aircraft designs to meet various ...

  20. abrasive grinding wheels: Topics by E-print Network

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

    with the Autonomous Intelligent Systems Group Behnke, Sven 426 ME 4171 --HOMEWORK: LIFE-CYCLE DESIGN WHEEL SYNOPSIS OF ASSIGNMENT Engineering Websites Summary: are Cokes in 12-pack...

  1. A steering mechanism for phototaxis in Chlamydomonas

    E-Print Network [OSTI]

    Rachel R. Bennett; Ramin Golestanian

    2014-12-19T23:59:59.000Z

    Chlamydomonas shows both positive and negative phototaxis. It has a single eyespot near its equator and as the cell rotates during forward motion the light signal received by the eyespot varies. We use a simple mechanical model of Chlamydomonas that couples the flagellar beat pattern to the light intensity at the eyespot to demonstrate a mechanism for phototactic steering that is consistent with observations. The direction of phototaxis is controlled by a parameter in our model and the steering mechanism is robust to noise. Our model shows switching between directed phototaxis when the light is on and run-and-tumble behaviour in the dark.

  2. Eurospeech 2001 -Scandinavia OASIS Natural Language Call Steering Trial

    E-Print Network [OSTI]

    Fosler-Lussier, Eric

    Eurospeech 2001 - Scandinavia OASIS Natural Language Call Steering Trial Peter J Durston 1 , Mark's call steering banking trials [2]. This paper describes a recent trial of the OASIS call steering system on live traffic from a UK operator centre. This trial is part of an ongoing investigation under the OASIS

  3. Preliminary study on Electronic Power Assistance Steering (EPAS) systems

    E-Print Network [OSTI]

    Boyer, Edmond

    ]. The basic concepts of the Electric Power Steering (EPS) systems with a realistic model for the friction the optimality of these curves (or to develop new ones), we propose a model for the steering column that it is possible to compensate the torsion torque in the steering column with a inner control law. Under

  4. Integrating a Debugger and a Performance Tool for Steering

    E-Print Network [OSTI]

    Miller, Barton P.

    . It allows control and performance tuning to take place dur­ ing program execution. Steering emphasizes modification of programs into a steering tool that can be used for external optimization and control. In addition to the steering configuration, we also iden­ tify a programming model based on the notion

  5. Wheeling, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED JumpHills,2732°,WetzelTechnologies IncEnergyWheeling,

  6. FOURFOUR--QUADRANT POWER SUPPLIESQUADRANT POWER SUPPLIES FOR STEERING ELECTROMAGNETSFOR STEERING ELECTROMAGNETS

    E-Print Network [OSTI]

    Kozak, Victor R.

    FOURFOUR--QUADRANT POWER SUPPLIESQUADRANT POWER SUPPLIES FOR STEERING ELECTROMAGNETSFOR STEERING-3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - DIPOLE CORRECTORS MULTI-POLE CORRECTORS W500P kW2P Cooling: Air Natural IUP = V100U,A6I V100U,A25I.V.Belikov@inp.nsk.su Bulk Power Supply R S C I FOUR- QUADRANT POWER SUPPLIES RECUPERATION VCC H-BI #12;O. Belikov, Ru

  7. The design process for wheel-robot integration

    E-Print Network [OSTI]

    Carvajal, Michael Angelo

    2009-01-01T23:59:59.000Z

    In this thesis, the design process for wheel-robot integration was documented and reflected on. The project focused on redesigned certain aspects a half-scale wheel-robot to be integrated with a half-scale CityCar prototype ...

  8. WHEELS: A CONVERSATIONAL SYSTEM IN THE AUTOMOBILE CLASSIFIEDS DOMAIN

    E-Print Network [OSTI]

    WHEELS: A CONVERSATIONAL SYSTEM IN THE AUTOMOBILE CLASSIFIEDS DOMAIN Helen Meng, Senis WHEELS is a conversational system which provides access to a database of eletronic automobile classified users to search through a database of 5,000 automobile classifieds. The current end-to-end system can re

  9. Wintering Steer Calves at the Spur Station.

    E-Print Network [OSTI]

    Jones, J. H.; Fisher, C. E.; Marion, P. T.

    1956-01-01T23:59:59.000Z

    . LITERATURE CITED 1. Jones, J. H., R. E. Dickson, J. K. Riggs and J. M. Jones. Silage and cottonseed meal for fat- tening yearling steers. Texas Agr. Exp. Sta. Bull. 622. 1942. 2. Mcllvain, E. H., A. L. Baker, W. R. Kneebone and nillard H. Gates. Range...

  10. Ram pressure stripping of tilted galaxies

    E-Print Network [OSTI]

    Jachym, P; Palous, J; Combes, F

    2009-01-01T23:59:59.000Z

    Ram pressure stripping of galaxies in clusters can yield gas deficient disks. Previous numerical simulations based on various approaches suggested that, except for near edge-on disk orientations, the amount of stripping depends very little on the inclination angle. Following our previous study of face-on stripping, we extend the set of parameters with the disk tilt angle and explore in detail the effects of the ram pressure on the interstellar content (ISM) of tilted galaxies that orbit in various environments of clusters, with compact or extended distributions of the intra-cluster medium (ICM). We further study how results of numerical simulations could be estimated analytically. A grid of numerical simulations with varying parameters is produced using the tree/SPH code GADGET with a modified method for calculating the ISM-ICM interaction. These SPH calculations extend the set of existing results obtained from different codes using various numerical techniques. The simulations confirm the general trend of le...

  11. Prediction of tilted capillary barrier performance

    SciTech Connect (OSTI)

    Webb, S.W.; McCord, J.T.; Dwyer, S.F.

    1997-04-01T23:59:59.000Z

    Capillary barriers, consisting of tilted fine-over-coarse layers under unsaturated conditions, have been suggested as landfill covers to divert water infiltration away from sensitive underground regions, especially for arid and semi-arid regions. The Hydrological Evaluation of Landfill Performance (HELP) computer code is an evaluation tool for landfill covers used by designers and regulators. HELP is a quasi-two-dimensional model that predicts moisture movement into and through the underground soil and waste layers. Processes modeled within HELP include precipitation, runoff, evapotranspiration, unsaturated vertical drainage, saturated lateral drainage, and leakage through liners. Unfortunately, multidimensional unsaturated flow phenomena that are necessary for evaluating tilted capillary barriers are not included in HELP. Differences between the predictions of the HELP and those from a multidimensional unsaturated flow code are presented to assess the two different approaches. Comparisons are presented for the landfill covers including capillary barrier configurations at the Alternative Landfill Cover Demonstration (ALCD) being conducted at Sandia.

  12. Stabilizing windings for tilting and shifting modes

    DOE Patents [OSTI]

    Jardin, Stephen C. (Princeton, NJ); Christensen, Uffe R. (Princeton, NJ)

    1984-01-01T23:59:59.000Z

    This invention relates to passive conducting loops for stabilizing a plasma ring against unstable tilting and/or shifting modes. To this end, for example, plasma ring in a spheromak is stabilized by a set of four figure-8 shaped loops having one pair on one side of the plasma and one pair on the other side with each pair comprising two loops whose axes are transverse to each other.

  13. Role of thermal noise in tripartite quantum steering

    E-Print Network [OSTI]

    Meng Wang; Qihuang Gong; Zbigniew Ficek; Qiongyi He

    2014-08-10T23:59:59.000Z

    The influence of thermal noise on bipartite and tripartite quantum steering induced by a short laser pulse in a hybrid three-mode optomechanical system is investigated. The calculation is carried out under the bad cavity limit, the adiabatic approximation of a slowly varying amplitude of the cavity mode, and with the assumption of driving the cavity mode with a blue detuned strong laser pulse. Under such conditions, explicit expressions of the bipartite and tripartite steering parameters are obtained, and the concept of collective tripartite quantum steering, recently introduced by He and Reid [Phys. Rev. Lett. 111, 250403 (2013)], is clearly explored. It is found that both bipartite and tripartite steering parameters are sensitive functions of the initial state of the modes and distinctly different steering behaviour could be observed depending on whether the modes were initially in a thermal state or not. We find that the initial thermal noise is more effective in destroying the bipartite rather than the tripartite steering which, on the other hand, can persist even for a large thermal noise. For the initial vacuum state of a steered mode, the tripartite steering exists over the entire interaction time even if the steering modes are in very noisy thermal states. When the steered mode is initially in a thermal state, it can be collectively steered by the other modes. There are thresholds for the average number of the thermal photons above which the existing tripartite steering appears as the collective steering. Finally, we point out that the collective steering may provide a resource in a hybrid quantum network for quantum secret sharing protocol.

  14. Characterization of grinding wheels: An annotated Bibliography. Final report

    SciTech Connect (OSTI)

    McClung, R.W.

    1995-12-01T23:59:59.000Z

    The characteristics of grinding wheels, after both fabrication and periods of operation, have a significant effect on the processed surface and the mechanical properties of advanced ceramics. An extensive literature survey and review has been conducted to determine and catalogue the various characterization methods that have been investigated and reported. Although many of the references have addressed the grinding of metals, the historical and technical merit justify their inclusion in this bibliography. For convenience, the references have been subdivided into nine subheadings: Nondestructive examination; elasticity and stiffness; wheel hardness; topography and profilometry; observation of texture of wheel surfaces wheel wear; in process monitoring of grinding, acoustic emission, other; characteristics of ground surfaces; and miscellaneous.

  15. SHARED CONTROL BETWEEN HUMAN AND MACHINE: USING A HAPTIC STEERING WHEEL TO AID IN LAND VEHICLE GUIDANCE

    E-Print Network [OSTI]

    Gillespie, Brent

    with an automatic controller. We present a fixed-base driving simulator experiment in which subjects take advantage. INTRODUCTION In man-machine systems, the mechanical response of the control interface (e.g., knob, mouse processing, and fast response. Drivers use automatic control of speed today in autos (cruise control). GPS

  16. automated steering mechanism: Topics by E-print Network

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

    of sharedcollaborative control (steering) of the underlying mechanical system (vehicle). Possibilities range from sharing of control between multiple individual users or...

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

    E-Print Network [OSTI]

    Maciua, Dragos

    1996-01-01T23:59:59.000Z

    Design, Modeling and Control of Steering and Braking for anDesign, Modeling and Control of Steering and Braking for anDesign, Modeling and Control of Steering and Braking for an

  18. Neutral particle beam sensing and steering

    DOE Patents [OSTI]

    Maier, II, William B. (Los Alamos, NM); Cobb, Donald D. (Los Alamos, NM); Robiscoe, Richard T. (Los Alamos, NM)

    1991-01-01T23:59:59.000Z

    The direction of a neutral particle beam (NPB) is determined by detecting Ly.alpha. radiation emitted during motional quenching of excited H(2S) atoms in the beam during movement of the atoms through a magnetic field. At least one detector is placed adjacent the beam exit to define an optical axis that intercepts the beam at a viewing angle to include a volume generating a selected number of photons for detection. The detection system includes a lens having an area that is small relative to the NPB area and a pixel array located in the focal plane of the lens. The lens viewing angle and area pixel array are selected to optimize the beam tilt sensitivity. In one embodiment, two detectors are placed coplanar with the beam axis to generate a difference signal that is insensitive to beam variations other than beam tilt.

  19. Auto-steering apparatus and method

    DOE Patents [OSTI]

    McKay, Mark D.; Anderson, Matthew O.

    2007-03-13T23:59:59.000Z

    A vehicular guidance method involves providing a user interface using which data can be input to establish a contour for a vehicle to follow, the user interface further configured to receive information from a differential global positioning system (DGPS), determining cross track and offset data using information received from the DGPS, generating control values, using at least vehicular kinematics, the cross track, and the offset data, and providing an output to control steering of the vehicle, using the control values, in a direction to follow the established contour while attempting to minimize the cross track and the offset data.

  20. Plasmon switching: Observation of dynamic surface plasmon steering by

    E-Print Network [OSTI]

    Visser, Taco D.

    Plasmon switching: Observation of dynamic surface plasmon steering by selective mode excitation a plasmon steering method that enables us to dynamically control the direction of surface plasmons generated surface plasmons are launched can be controlled. Experiments confirm that it is possible to distribute

  1. Systems-Level Modeling of Particle Steering using Microfluidic Device

    E-Print Network [OSTI]

    Austin, Mark

    Systems-Level Modeling of Particle Steering using Microfluidic Device ENES489P: Hands-On Systems of the device consists of the particles, steering mechanism, optical sensor, control algorithm, computer, fluid tool in modeling many different types of processes. It can be used to simplify complex biological

  2. Exogenous input estimation in Electronic Power Steering (EPS) systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , observation and control towards a new generation of Electrical Power Steering(EPS) systems. In particular.1 (T5.1) for the design of the control law to eliminate the high frequency oscillations of the steering the observer and the control; block 2 includes the tyre-friction model and block 3 includes the reference model

  3. Steering Behaviors for Autonomous Vehicles in Virtual Environments Hongling Wang

    E-Print Network [OSTI]

    Kearney, Joseph K.

    This paper presents steering behaviors that control autonomous ve- hicles populating roadways in virtualSteering Behaviors for Autonomous Vehicles in Virtual Environments Hongling Wang Dept of Computer are modeled as three-dimensional ribbons that make the local orientation of the road explicit and allow

  4. Fattening Steers on Cottonseed Meal and Cottonseed Hulls With and Without Corn; The Influence of Age on Fattening Steers.

    E-Print Network [OSTI]

    Jones, J. M. (John McKinley); Lush, Jay L. (Jay Laurence); Jones, James Hazlitt

    1923-01-01T23:59:59.000Z

    111 llsteers Lot IV 10 steers Third thirty days. ..... 115.6C.S.M 274.6corn ......... 612.8 hulls. ....... 210.2C.S.M ..... 871.1 hulls. ....... I 3.54C.S.M ...... 8.41corn .......... 18.77 hulls. ........ 5.39C.S.M ...... 22.34 hulls.... ........ Lot I11 11 steers Lot IV 10 steers Fourth thirty days. $10.11 8.17 ...... 3.23C.S.M 10.41 corn.. ........ 23.21 hulls. ........ ...... 6.18C.S.M 26.54 hulls. ........ Lot 111 llsteers Lot IV 10 steers (If the steer with the abscess were...

  5. Well-to-Wheels Energy Use and Greenhouse Gas Emissions of Plug...

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

    Well-to-Wheels Energy Use and Greenhouse Gas Emissions of Plug-In Hybrid Electric Vehicles Well-to-Wheels Energy Use and Greenhouse Gas Emissions of Plug-In Hybrid Electric...

  6. The Genetic Architecture of High Voluntary Wheel Running in House Mice

    E-Print Network [OSTI]

    Hannon, Robert Michael

    2010-01-01T23:59:59.000Z

    for high voluntary wheel running. J. Exper. Biol. 212, 238-A. , Garland, T. Jr. (2009). Running behavior and its energyfor high voluntary wheel-running. Behav. Genet. 31, 309-316.

  7. Well-to-Wheels Analysis of Advanced Fuel/Vehicle Systems - A...

    Energy Savers [EERE]

    Well-to-Wheels Analysis of Advanced FuelVehicle Systems - A North American Study of Energy Use, Greenhouse Gas Emissions, and Criteria Pollutant Emissions Well-to-Wheels Analysis...

  8. Analysis and synthesis of intonation using the tilt model 

    E-Print Network [OSTI]

    Taylor, Paul

    This paper introduces the Tilt intonational model and describes how this model can be used to automatically analyze and synthesize intonation. In the model, intonation is represented as a linear sequence of events, which ...

  9. Geometric Model of a Narrow Tilting CAR using Robotics formalism

    E-Print Network [OSTI]

    Boyer, Edmond

    of an Electrical narrow tilting car instead of a large gasoline car should dramatically decrease traffic congestion are the terminal links. Each body Cj is connected to its antecedent Ci (i=a (j)) with a joint that represents

  10. A Neural Network Model of Visual Tilt Aftereffects

    E-Print Network [OSTI]

    1997-01-01T23:59:59.000Z

    RF-LISSOM, a self-organizing model of laterally connected orientation maps in the primary visual cortex, was used to study the psychological phenomenon known as the tilt aftereffect. The same self-organizing processes that are responsible for the long-term development of the map and its lateral connections are shown to result in tilt aftereffects over short time scales in the adult. The model allows observing large numbers of neurons and connections simultaneously, making it possible to relate higher-level phenomenato low-level events, which is difficult to do experimentally. The results give computational support for the idea that direct tilt aftereffects arise from adaptive lateral interactions between feature detectors, as has long been surmised. They also suggest that indirect effects could result from the conservation of synaptic resourcesduring this process. The model thus provides a unified computational explanation of self-organization and both direct and indirect tilt aftereff...

  11. TILT POUR TRIALS AND ANALYSIS Bob Bryant1

    E-Print Network [OSTI]

    Beckermann, Christoph

    TILT POUR TRIALS AND ANALYSIS Bob Bryant1 , Kent D. Carlson2 , Shouzhu Ou2 , Christoph Beckermann2 reduce inclusion severity, compared to standard techniques. Bryant, R., Carlson, K.D., Ou, S

  12. A FINITE ELEMENT APPROACH FOR SIMULATING THE QUENCHING OF LARGE ALUMINIUM COMPRESSOR WHEELS

    E-Print Network [OSTI]

    A FINITE ELEMENT APPROACH FOR SIMULATING THE QUENCHING OF LARGE ALUMINIUM COMPRESSOR WHEELS A FINITE ELEMENT APPROACH FOR SIMULATING THE QUENCHING OF LARGE ALUMINIUM COMPRESSOR WHEELS Dirk Büche Aluminum devices such as compressor wheels are typically heat treated in order to achieve the required

  13. Quasi-Static Analysis of a Leg-Wheel Hybrid Vehicle for Enhancing Stair Climbing Ability

    E-Print Network [OSTI]

    Laksanacharoen, Sathaporn

    Quasi-Static Analysis of a Leg-Wheel Hybrid Vehicle for Enhancing Stair Climbing Ability Pattaramon}@kmutt.ac.th stl@kmitnb.ac.th Abstract - This paper presents quasi-static analysis of a leg- wheel hybrid vehicle. Index Terms - Leg-Wheel hybrid vehicle, Stair climbing ability, Quasi-static analysis I. INTRODUCTION

  14. KINEMATIC CONTROL OF A NONHOLONOMIC WHEELED MOBILE MANIPULATOR A DIFFERENTIAL FLATNESS APPROACH

    E-Print Network [OSTI]

    Krovi, Venkat

    the terminal conditions in the flat output space while control design reduces to a pole-placement problem) electro-mechanical testing. NOMENCLATURE WMR Wheeled Mobile Robot WMM Wheeled Mobile Manipulator ( ),x y Cartesian coordinates of the center of the wheel axle of the WMR Orientation of the WMR with respect

  15. Improving Conifer Timber Steering Group Wednesday 24th

    E-Print Network [OSTI]

    construction timber markets. 2. Opening Discussion On arrival at the Best Western Park Hotel, Falkirk the group Conifer Timber Quality steering group web page link http://fcnotes/fr/INFD- 6KYGHS which went live on 19th

  16. An Advanced Fast Steering Mirror for optical communication

    E-Print Network [OSTI]

    Kluk, Daniel Joseph

    2007-01-01T23:59:59.000Z

    I describe in this thesis the design, fabrication, assembly, and testing of an Advanced Fast Steering Mirror (AFSM) for precision optical platforms. The AFSM consists of a mirror driven in two rotational axes by normal ...

  17. Beam steering via peak power decay in nonlinear waveguide arrays

    E-Print Network [OSTI]

    Droulias, Sotiris

    We report the experimental observation and theoretical analysis of a novel beam-steering effect in periodic waveguide arrays that arises from the interplay between discrete diffraction, Kerr nonlinearity and any mechanism ...

  18. Micromachined actuators/sensors for intratubular positioning/steering

    DOE Patents [OSTI]

    Lee, A.P.; Krulevitch, P.A.; Northrup, M.A.; Trevino, J.C.

    1998-06-30T23:59:59.000Z

    Micromachined thin film cantilever actuators having means for individually controlling the deflection of the cantilevers, valve members, and rudders for steering same through blood vessels, or positioning same within a blood vessel, for example. Such cantilever actuators include tactile sensor arrays mounted on a catheter or guide wire tip for navigation and tissues identification, shape-memory alloy film based catheter/guide wire steering mechanisms, and rudder-based steering devices that allow the selective actuation of rudders that use the flowing blood itself to help direct the catheter direction through the blood vessel. While particularly adapted for medical applications, these cantilever actuators can be used for steering through piping and tubing systems. 14 figs.

  19. Steering and Separating Excitons in Organic Thin Films and Devices...

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

    Steering and Separating Excitons in Organic Thin Films and Devices October 26, 2010 at 3pm36-428 Mark Thompson University of Southern California (USC) thompson abstract: We have...

  20. automatic beam steering: Topics by E-print Network

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

    sensor data, the software calculates a signal for the DC servo motor, that rotates the plunger causing the change in spring loading. The LabView and pinion steering system. Key...

  1. Micromachined actuators/sensors for intratubular positioning/steering

    DOE Patents [OSTI]

    Lee, Abraham P. (Walnut Creek, CA); Krulevitch, Peter A. (Mountain View, CA); Northrup, M. Allen (Berkeley, CA); Trevino, Jimmy C. (French Camp, CA)

    1998-01-01T23:59:59.000Z

    Micromachined thin film cantilever actuators having means for individually controlling the deflection of the cantilevers, valve members, and rudders for steering same through blood vessels, or positioning same within a blood vessel, for example. Such cantilever actuators include tactile sensor arrays mounted on a catheter or guide wire tip for navigation and tissues identification, shape-memory alloy film based catheter/guide wire steering mechanisms, and rudder-based steering devices that allow the selective actuation of rudders that use the flowing blood itself to help direct the catheter direction through the blood vessel. While particularly adapted for medical applications, these cantilever actuators can be used for steering through piping and tubing systems.

  2. POWER AND CONTROL WHEELPOWER AND CONTROL WHEEL AND THREATS

    E-Print Network [OSTI]

    Su, Xiao

    physical VIOLENCE sexual POWER AND CONTROL WHEELPOWER AND CONTROL WHEEL POWER AND CONTROL COERCION's life and circumstances. The Power & Control diagram is a particularly helpful tool in understanding for abusive behavior. Saying she caused it. ISOLATION: Controlling what she does, who she sees and talks to

  3. Hydrodynamic Tesla Wheel Flume for Model and Prototype Testing

    E-Print Network [OSTI]

    Wood, Stephen L.

    The Tesla turbine, U.S. Patent 1,061,206 -- May 6, 1913 was invented by Nikola Tesla as a means to extractHydrodynamic Tesla Wheel Flume for Model and Prototype Testing Spencer Jenkins, Chris Scott, Jacob Engineering department at Florida Institute of Technology (Florida Tech) has developed a Hydrodynamic Tesla

  4. FULL FUEL CYCLE ASSESSMENT WELL TO WHEELS ENERGY INPUTS,

    E-Print Network [OSTI]

    FULL FUEL CYCLE ASSESSMENT WELL TO WHEELS ENERGY INPUTS, EMISSIONS, AND WATER IMPACTS Preparation for the AB 1007 (Pavley) Alternative Transportation Fuels Plan Proceeding Prepared For: California Energy, Project Manager Ray Tuvell, Manager EMERGING FUELS & TECHNOLOGY OFFICE Rosella Shapiro, Deputy Director

  5. Innovative grinding wheel design for cost-effective machining of advanced ceramics. Phase I, final report

    SciTech Connect (OSTI)

    Licht, R.H.; Ramanath, S.; Simpson, M.; Lilley, E.

    1996-02-01T23:59:59.000Z

    Norton Company successfully completed the 16-month Phase I technical effort to define requirements, design, develop, and evaluate a next-generation grinding wheel for cost-effective cylindrical grinding of advanced ceramics. This program was a cooperative effort involving three Norton groups representing a superabrasive grinding wheel manufacturer, a diamond film manufacturing division and a ceramic research center. The program was divided into two technical tasks, Task 1, Analysis of Required Grinding Wheel Characteristics, and Task 2, Design and Prototype Development. In Task 1 we performed a parallel path approach with Superabrasive metal-bond development and the higher technical risk, CVD diamond wheel development. For the Superabrasive approach, Task 1 included bond wear and strength tests to engineer bond-wear characteristics. This task culminated in a small-wheel screening test plunge grinding sialon disks. In Task 2, an improved Superabrasive metal-bond specification for low-cost machining of ceramics in external cylindrical grinding mode was identified. The experimental wheel successfully ground three types of advanced ceramics without the need for wheel dressing. The spindle power consumed by this wheel during test grinding of NC-520 sialon is as much as to 30% lower compared to a standard resin bonded wheel with 100 diamond concentration. The wheel wear with this improved metal bond was an order of magnitude lower than the resin-bonded wheel, which would significantly reduce ceramic grinding costs through fewer wheel changes for retruing and replacements. Evaluation of ceramic specimens from both Tasks 1 and 2 tests for all three ceramic materials did not show evidence of unusual grinding damage. The novel CVD-diamond-wheel approach was incorporated in this program as part of Task 1. The important factors affecting the grinding performance of diamond wheels made by CVD coating preforms were determined.

  6. Laser Guide Star Adaptive Optics without Tip-tilt

    E-Print Network [OSTI]

    R. Davies; S. Rabien; C. Lidman; M. Le Louarn; M. Kasper; N. M. Forster Schreiber; V. Roccatagliata; N. Ageorges; P. Amico; C. Dumas; F. Mannucci

    2008-01-24T23:59:59.000Z

    Adaptive optics (AO) systems allow a telescope to reach its diffraction limit at near infrared wavelengths. But to achieve this, a bright natural guide star (NGS) is needed for the wavefront sensing, severely limiting the fraction of the sky over which AO can be used. To some extent this can be overcome with a laser guide star (LGS). While the laser can be pointed anywhere in the sky, one still needs to have a natural star, albeit fainter, reasonably close to correct the image motion (tip-tilt) to which laser guide stars are insensitive. There are in fact many astronomical targets without suitable tip-tilt stars, but for which the enhanced resolution obtained with the Laser Guide Star Facility (LGSF) would still be very beneficial. This article explores what adaptive optics performance one might expect if one dispenses with the tip-tilt star, and in what situations this mode of observing might be needed.

  7. Method to fabricate a tilted logpile photonic crystal

    DOE Patents [OSTI]

    Williams, John D. (Albuquerque, NM); Sweatt, William C. (Albuquerque, NM)

    2010-10-26T23:59:59.000Z

    A method to fabricate a tilted logpile photonic crystal requires only two lithographic exposures and does not require mask repositioning between exposures. The mask and photoresist-coated substrate are spaced a fixed and constant distance apart using a spacer and the stack is clamped together. The stack is then tilted at a crystallographic symmetry angle (e.g., 45 degrees) relative to the X-ray beam and rotated about the surface normal until the mask is aligned with the X-ray beam. The stack is then rotated in plane by a small stitching angle and exposed to the X-ray beam to pattern the first half of the structure. The stack is then rotated by 180.degree. about the normal and a second exposure patterns the remaining half of the structure. The method can use commercially available DXRL scanner technology and LIGA processes to fabricate large-area, high-quality tilted logpile photonic crystals.

  8. Tilted accretion discs in cataclysmic variables: tidal instabilities and superhumps

    E-Print Network [OSTI]

    J. R. Murray; P. J. Armitage

    1998-09-10T23:59:59.000Z

    We investigate the growth of tidal instabilities in accretion discs in a binary star potential, using three dimensional numerical simulations. As expected from analytic work, the disc is prone to an eccentric instability provided that it is large enough to extend to the 3:1 resonance. The eccentric disc leads to positive superhumps in the light curve. It has been proposed that negative superhumps might arise from a tilted disc, but we find no evidence that the companion gravitational tilt instability can grow fast enough in a fluid disc to create a measurable inclination. The origin of negative superhumps in the light curves of cataclysmic variables remains a puzzle.

  9. Joint measurability, steering and entropic uncertainty

    E-Print Network [OSTI]

    H. S. Karthik; A. R. Usha Devi; A. K. Rajagopal

    2014-12-02T23:59:59.000Z

    The notion of incompatibility of measurements in quantum theory is in stark contrast with the corresponding classical perspective, where all physical observables are jointly measurable. It is of interest to examine if the results of two or more measurements in the quantum scenario can be perceived from a classical point of view or they still exhibit non-classical features. Clearly, commuting observables can be measured jointly using projective measurements and their statistical outcomes can be discerned classically. However, such simple minded association of compatibility of measurements with commutativity turns out to be limited in an extended framework, where the usual notion of sharp projective valued measurements of self adjoint observables gets broadened to include unsharp measurements of generalized observables constituting positive operator valued measures (POVM). There is a surge of research activity recently towards gaining new physical insights on the emergence of classical behavior via joint measurability of unsharp observables. Here, we explore the entropic uncertainty relation for a pair of discrete observables (of Alice's system) when an entangled quantum memory of Bob is restricted to record outcomes of jointly measurable POVMs only. Within the joint measurability regime, the sum of entropies associated with Alice's measurement outcomes - conditioned by the results registered at Bob's end - are constrained to obey an entropic steering inequality. In this case, Bob's non-steerability reflects itself as his inability in predicting the outcomes of Alice's pair of non-commuting observables with better precision, even when they share an entangled state. As a further consequence, the quantum advantage envisaged for the construction of security proofs in key distribution is lost, when Bob's measurements are restricted to the joint measurability regime.

  10. Variation in energy expenditures between growing steers with divergent residual feed intakes 

    E-Print Network [OSTI]

    White, Monte Blaine III

    2006-04-12T23:59:59.000Z

    Objectives of this study were to determine if variation in energy expenditures contributed to differences in feed efficiency between low and high RFI steers. Nine steers with the lowest and highest residual feed intakes ...

  11. Free energy reconstruction from steered dynamics without post-processing

    E-Print Network [OSTI]

    Manuel Athčnes; Mihai-Cosmin Marinica

    2010-06-30T23:59:59.000Z

    Various methods achieving importance sampling in ensembles of nonequilibrium trajectories enable to estimate free energy differences and, by maximum-likelihood post-processing, to reconstruct free energy landscapes. Here, based on Bayes theorem, we propose a more direct method in which a posterior likelihood function is used both to construct the steered dynamics and to infer the contribution to equilibrium of all the sampled states. The method is implemented with two steering schedules. First, using non-autonomous steering, we calculate the migration barrier of the vacancy in Fe-alpha. Second, using an autonomous scheduling related to metadynamics and equivalent to temperature-accelerated molecular dynamics, we accurately reconstruct the two-dimensional free energy landscape of the 38-atom Lennard-Jones cluster as a function of an orientational bond-order parameter and energy, down to the solid-solid structural transition temperature of the cluster and without maximum-likelihood post-processing.

  12. Experimental device-independent verification of quantum steering

    E-Print Network [OSTI]

    Sacha Kocsis; Michael J. W. Hall; Adam J. Bennet; Dylan J. Saunders; G. J. Pryde

    2014-08-07T23:59:59.000Z

    Bell nonlocality between distant quantum systems---i.e., joint correlations which violate a Bell inequality---can be verified without trusting the measurement devices used, nor those performing the measurements. This leads to unconditionally secure protocols for quantum information tasks such as cryptographic key distribution. However, complete verification of Bell nonlocality requires high detection efficiencies, and is not robust to the typical transmission losses that occur in long distance applications. In contrast, quantum steering, a weaker form of quantum correlation, can be verified for arbitrarily low detection efficiencies and high losses. The cost is that current steering-verification protocols require complete trust in one of the measurement devices and its operator, allowing only one-sided secure key distribution. We present device-independent steering protocols that remove this need for trust, even when Bell nonlocality is not present. We experimentally demonstrate this principle for singlet states and states that do not violate a Bell inequality.

  13. Rotordynamic and thermal analyses of compliant flexure pivot tilting pad gas bearings

    E-Print Network [OSTI]

    Sim, Kyu-Ho

    2009-05-15T23:59:59.000Z

    Rotordynamic and thermal analyses of compliant flexure pivot tilting pad gas bearings were performed. First, compliant flexure pivot tilting pad gas bearings with pad radial compliance (CFTPBs) were introduced and designed for high-speed oil...

  14. The cost of noise reduction for departure and arrival operations of commercial tilt rotor aircraft

    E-Print Network [OSTI]

    Faulkner, Henry B.

    1976-01-01T23:59:59.000Z

    The relationship between direct operating cost (DOC) and noise annoyance due to a departure and an arrival operation was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt ...

  15. Sorghum head silage, with and without haylage, for fattening steers

    E-Print Network [OSTI]

    Stilwell, Daniel Emerson

    1963-01-01T23:59:59.000Z

    steers in all treatment groups during the first few days of the trial. A ma)ority of the cases occurred in the group fed soxghum heads and 2 lb. CSM and most of these cases wex'e during the first three days of the experiment when s dry ground mixture..., and 2 lb. CSM (285 lb. ). The steers fed heads, haylage, and 1 lb. CSM had the lowest total gain (254 lb. ), but this was not significantly diffexent from the group fed heads, haylage, and 2 lb. of CSM (264 lb. ), ox the group fed grain, haylage...

  16. IEEE TRANSACTIONS ON ROBOTICS 1 Needle Steering in 3D via Rapid Replanning

    E-Print Network [OSTI]

    Alterovitz, Ron

    Plan Execute Control PredictionActual Model Generate Multiple Plans Fig. 1. Closed-loop needle steeringIEEE TRANSACTIONS ON ROBOTICS 1 Needle Steering in 3D via Rapid Replanning Sachin Patil Member steering system capable of automatically reaching targets in 3D environments while avoiding obstacles

  17. Case Study: Resource Steering in a Visualization System Ed H. Chi?, John Riedl

    E-Print Network [OSTI]

    Chi, Ed Huai-hsin

    similarity reports. We show how our extended steering model enhances the user's ability to control by providing machine resource estimation and control to the user. With resource steering, the user controls steering model by applying it to an information visualization system that analyzes genetic se- quence

  18. Drastic Productivity Gain for Large-Truck Operations with Automated Trailer Steering

    E-Print Network [OSTI]

    Su, Xiao

    ] · A Solution Concept: Automated Trailer Steering · Elimination of Off-tracking (Vehicle Dynamics Only) ­ Models & simulation with ad hoc steering angles [2007] ­ LQR-RWA active control for high speeds [2007] ­ CommandDrastic Productivity Gain for Large-Truck Operations with Automated Trailer Steering via Fuel

  19. 3D steering of a flexible needle by visual servoing Alexandre Krupa

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ://www.irisa.fr/lagadic/welcome-eng.html Abstract. This paper presents a robotic control method for 3D steering of a beveled-tip flexible needle approach and its robustness to model errors. Keywords: Flexible needle steering, visual servoing 1], or the Stochastic roadmap [6]. In [7] a kinematic model was proposed for bevel-tip needle steering by constantly

  20. Wann and Wilkie Steering with an eye to braking Under Submission 1

    E-Print Network [OSTI]

    Royal Holloway, University of London

    visual direction information increases during walking3 and high speed steering1 . Models of Steering Control In order to quantify the combination of this information, mathematical models have been used such a model that steers to the target attractor whilst negotiating a series of obstacles (which are treated

  1. Switched system modeling and robust steering control in a hot strip mill

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Switched system modeling and robust steering control in a hot strip mill I. Malloci J. Daafouz C. Abstract: In this article, a robust steering control for the last phase of the rolling process in a hot. The switchings make the system unstable and the task of the tail end steering control consists in guaranteeing

  2. Toolkit for Teaching Steering Behaviors for 3D Human-like Virtual Agents (Demonstration)

    E-Print Network [OSTI]

    Brom, Cyril

    of steering behaviors for Pogamut toolkit for developing control mechanisms of virtual agents. The second one]: Model Development General Terms Algorithms Keywords Steering behaviors, Human-like virtual agents behavior shows that steering behaviors may not only control low-level navigation, but they may also be used

  3. Switching Mode Generation and Optimal Estimation with Application to Skid-Steering

    E-Print Network [OSTI]

    Hartmann, Mitra J. Z.

    to treat the skid-steered vehicle as a switched system, the vehicle's ground interaction is modeled using; optimal estimation; optimal control; estimation algorithms 1 Introduction The skid-steered vehicle (SSVSwitching Mode Generation and Optimal Estimation with Application to Skid-Steering T. M. Caldwell

  4. Design Considerations for Robotic Needle Steering Robert J. Webster III, Jasenka Memisevic, and Allison M. Okamura

    E-Print Network [OSTI]

    Webster III, Robert James

    and steer around obstacles to reach previously inaccessible locations. Control and planning based on a steering model can compensate for targeting disturbances due to needle bending, error in insertion angleDesign Considerations for Robotic Needle Steering Robert J. Webster III, Jasenka Memisevic

  5. Vision-Based Control on Lie groups with Application to Needle Steering

    E-Print Network [OSTI]

    Vision-Based Control on Lie groups with Application to Needle Steering by Vinutha Kallem steering and (2) kernel-based visual servoing. The core of this thesis is motivated by image-guided control model of flexible bevel-tip needle steering in which the needle is inserted and rotated at its base

  6. Oscillation annealing and driver/tire load torque estimation in Electric Power Steering Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the improved LuGre-tire friction model. Index Terms-- Electric Power Steering systems (EPSs), LQ control, Lu a control framework that includes a realistic model of a steering column accounting for all other torque. The contributions of this paper are: a) Optimal output control feedback: Based on the steer- ing column model

  7. ROLE OF VEHICLE DYNAMIC MODELING FIDELITY WITH HAPTIC COLLABORATION IN STEER BY WIRE

    E-Print Network [OSTI]

    Krovi, Venkat

    ROLE OF VEHICLE DYNAMIC MODELING FIDELITY WITH HAPTIC COLLABORATION IN STEER BY WIRE SYSTEMS control back to the driver. Candidate solutions for mimicking the steering feel have ranged from direct torque prediction schemes based on mathematical dynamics models (of tire-road, suspension, power-steering

  8. Hydrogen Pathways: Cost, Well-to-Wheels Energy Use, and Emissions...

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

    Well-to-Wheels Energy Use, and Emissions for the Current Technology Status of Seven Hydrogen Production, Delivery, and Distribution Scenarios Hydrogen Pathways: Cost,...

  9. On the first Hochschild cohomology group of a cluster-tilted algebra

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On the first Hochschild cohomology group of a cluster-tilted algebra Ibrahim Assem, Mar´ia Julia Redondo and Ralf Schiffler Abstract Given a cluster-tilted algebra B, we study its first Hochschild cohomol- ogy group HH1 (B) with coefficients in the B-B-bimodule B. If C is a tilted algebra such that B

  10. Risk Management Steering Committee Membership 2014/15

    E-Print Network [OSTI]

    Victoria, University of

    Risk Management Steering Committee Membership 2014/15 NAME TITLE / DEPARTMENT Gayle Gorrill (Chair, Facilities Management Kane Kilbey Associate Vice-President, Human Resources and EOC Coordinator Kristi Emergency Planner Andrew Coward Assistant Treasurer Ben McAllister Risk and Insurance Analyst Adrian Round

  11. SSRS Summary for SSRS NE Steering Group 8 September 2011

    E-Print Network [OSTI]

    SSRS Summary for SSRS NE Steering Group 8 September 2011 1. Project Officer Hollie Walker left us modelling expert) ­ to discuss the project monitoring and data analysis protocols that will be used to demonstrate the benefits of grey squirrel control under the Project. As a result of the discussions we revised

  12. An economic analysis of concentrate level in steer feeding

    E-Print Network [OSTI]

    Newman, Clarence Walter

    1958-01-01T23:59:59.000Z

    . Sta. Res. Bul. 32. Knox, J. H. 1951. Amount of grain for fattening yearling steers. N. Mex. Agri. Expt. Sta ~ Bul. 367. Magee, A. C. , P. T. Marion, C. E. Fisher and d. F. Hughes. 1957. Economics of cattle feeding systems for '@est Texas. Tex...

  13. Coordination and partial decoupling in tracking control for wheeled mobile manipulators

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Coordination and partial decoupling in tracking control for wheeled mobile manipulators V. Padois'Azereix, 65016 Tarbes Cedex Abstract We consider tracking control for mobile manipulators built from a wheeled of manipulation, the user has to control the location (position and orientation) of the tool or the grip of his

  14. Functional test procedure, Fifth Wheel: SS-R42351, Issue D

    SciTech Connect (OSTI)

    NONE

    1994-07-12T23:59:59.000Z

    This report describes the equipment required for initial assembly/maintenance and inspection/resetting of the Fifth Wheel system. It also gives a step-by-step procedure for initial assembly/maintenance inspection and procedures for resetting the system and Eager-Pac installation. The Fifth Wheel system is associated with a tractor-type vehicle used for materials handling.

  15. EIS-0039: Motor Gasoline Deregulation and the Gasoline Tilt

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts, including social and economic impacts, that may result from either of two proposed regulatory changes: (1) the exemption of motor gasoline from the Department of Energy's Mandatory Petroleum Price and Allocation Regulations, and (2) the adoption of the gasoline tilt, a proposed regulation that would allow refiners to recover an additional amount of their total increased costs on gasoline.

  16. Splay and tilt energy of bipolar lipid membranes

    E-Print Network [OSTI]

    Timur R. Galimzyanov; Peter I. Kuzmin; Peter Pohl; Sergey A. Akimov

    2014-12-28T23:59:59.000Z

    Archaea organisms are able to survive in extremely aggressive environment. It is thought that such resistance, at least, in part is sustained by unique properties of archaea membrane. The membrane consists of so called bolalipids, which has two polar heads joined by two hydrocarbon chains. Thus bolalipids can exist in two conformations: i) polar heads are located at different sides of bolalipid layer, so called, O-shape; ii) polar heads are located at the same side of the layer, so called, U-shape. Both polar heads and chains are chemically different from those for conventional lipids. In the present study we develop basis for theory of elasticity of bolalipid membranes. Deformations of splay, tilt and Gaussian curvature are considered. We show that energetic contributions of tilt deformation from two surfaces of bolalipid layer are additive, as well as Gaussian curvature, while splay deformations yield a cross-term. The presence of U-shapes is taken into account in terms of the layer spontaneous curvature. Estimation of tilt modulus and possible experiments allowing to measure splay moduli are described.

  17. Rotor bore and turbine rotor wheel/spacer heat exchange flow circuit

    DOE Patents [OSTI]

    Caruso, Philip M. (Selkirk, NY); Eldrid, Sacheverel Quentin (Saratoga Springs, NY); Ladhani, Azad A. (Niskayuna, NY); DeMania, Alan Richard (Niskayuna, NY); Palmer, Gene David (Clifton Park, NY); Wilson, Ian David (Clifton Park, NY); Rathbun, Lisa Shirley (Scotia, NY); Akin, Robert Craig (Schenectady, NY)

    2002-01-01T23:59:59.000Z

    In a turbine having closed-circuit steam-cooling passages about the rim of the rotor during steady-state operation, compressor discharge air is supplied to the rotor bore for passage radially outwardly into the wheel space cavities between the wheels and spacers. Communicating slots and channels in the spacers and wheels at circumferentially spaced positions enable egress of the compressor discharge air into the hot gas flow path. At turbine startup, cooling air flows through the closed-circuit steam passages to cool the outer rim of the rotor while compressor discharge air pre-warms the wheels and spacers. At steady-state, cooling steam is supplied in the closed-circuit steam-cooling passages and compressor discharge air is supplied through the bore and into the wheel space cavities to cool the rotor.

  18. X-ray tube with magnetic electron steering

    DOE Patents [OSTI]

    Reed, Kim W. (Albuquerque, NM); Turman, Bobby N. (Albuquerque, NM); Kaye, Ronald J. (Albuquerque, NM); Schneider, Larry X. (Albuquerque, NM)

    2000-01-01T23:59:59.000Z

    An X-ray tube uses a magnetic field to steer electrons. The magnetic field urges electrons toward the anode, increasing the proportion of electrons emitted from the cathode that reach desired portions of the anode and consequently contribute to X-ray production. The magnetic field also urges electrons reflected from the anode back to the anode, further increasing the efficiency of the tube.

  19. Coherent optical monolithic phased-array antenna steering system

    DOE Patents [OSTI]

    Hietala, Vincent M. (Placitas, NM); Kravitz, Stanley H. (Placitas, NM); Vawter, Gregory A. (Albuquerque, NM)

    1994-01-01T23:59:59.000Z

    An optical-based RF beam steering system for phased-array antennas comprising a photonic integrated circuit (PIC). The system is based on optical heterodyning employed to produce microwave phase shifting by a monolithic PIC constructed entirely of passive components. Microwave power and control signal distribution to the antenna is accomplished by optical fiber, permitting physical separation of the PIC and its control functions from the antenna. The system reduces size, weight, complexity, and cost of phased-array antenna systems.

  20. Commanding lateral acceleration: a natural paradigm for automobile steering

    E-Print Network [OSTI]

    Kenny, Andrew

    1998-01-01T23:59:59.000Z

    of the exhaust tunnel. It is sofi mounted with Velcro which helps to mechanically filter high frequency vibrations from the engine and the road. A 20 Hertz single pole low pass filter also helps to reduce some of the road noise and disturbances. Figure 3... coming &om the pulse generator helps to reduce the noise and iinprove the accuracy of speed sensing. 17 Servomotor The literature review showed that previous researchers have used both hydraulic actuators and electric motors in their steering control...

  1. Steering of a Bosonic Mode with a Double Quantum Dot

    E-Print Network [OSTI]

    T. Brandes; N. Lambert

    2003-02-13T23:59:59.000Z

    We investigate the transport and coherence properties of a double quantum dot coupled to a single damped boson mode. Our numerically results reveal how the properties of the boson distribution can be steered by altering parameters of the electronic system such as the energy difference between the dots. Quadrature amplitude variances and the Wigner function are employed to illustrate how the state of the boson mode can be controlled by a stationary electron current through the dots.

  2. Light steering in a strongly nonlocal nonlinear medium

    SciTech Connect (OSTI)

    Ouyang Shigen; Hu Wei; Guo Qi [Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631 (China)

    2007-11-15T23:59:59.000Z

    With a strongly nonlocal model, we present an analytical solution of the coherent interaction of two Gaussian beams with an arbitrary phase difference and arbitrary incident angles. Numerical simulations show that the analytical solution can describe the interaction of two Gaussian beams very well in the strongly nonlocal case. It is theoretically shown that one can steer lights in strongly nonlocal media by tuning the incident conditions of coherently interacting beams like the phase difference between beams and their relative amplitude.

  3. Microhole Smart Steering and Logging While Drilling System

    SciTech Connect (OSTI)

    John Macpherson; Mathias Moeller; Thomas Gregg; Roland Chemali

    2006-06-30T23:59:59.000Z

    A background to Coiled Tubing Bottom Hole Assemblies (CT-BHA) is given, and the development of a resistivity measurement component, and a rib-steering motor component, is described. The successful operation of these components in both the laboratory and field environment is described. The primary conclusion of this development is that both components operate as anticipated within the CT-BHA, and significantly extend the possibility of drilling with coiled tubing in the microhole environment.

  4. Tilting the Primordial Power Spectrum with Bulk Viscosity

    E-Print Network [OSTI]

    James E. Lidsey

    1993-12-16T23:59:59.000Z

    Within the context of the cold dark matter model, current observations suggest that inflationary models which generate a tilted primordial power spectrum with negligible gravitational waves provide the most promising mechanism for explaining large scale clustering. The general form of the inflationary potential which produces such a spectrum is a hyperbolic function and is interpreted physically as a bulk viscous stress contribution to the energy-momentum of a perfect baryotropic fluid. This is equivalent to expanding the equation of state as a truncated Taylor series. Particle physics models which lead to such a potential are discussed.

  5. Stress response effects on growth, carcass characteristics, and tenderness in Bonsmara-influenced steers 

    E-Print Network [OSTI]

    Falkenberg, Shollie Marie

    2006-08-16T23:59:59.000Z

    Half-blood Bonsmara steers were evaluated for temperament during stressful situations to discover the relationships between behavioral stress responses, growth, carcass characteristics and tenderness. Two experiments were ...

  6. Action Plan and Status of Resolutions for LWRS Steering Committee Recommendations Dated August 13, 2009

    SciTech Connect (OSTI)

    Hongbin Zhang

    2009-08-01T23:59:59.000Z

    The resolutions to the recommendations from the Report of the Steering Committee for the LWRS Program Dated August 13, 2009 are documented.

  7. E-Print Network 3.0 - automatic steering control Sample Search...

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

    Collection: Engineering 7 Shared Control Between Human and Machine: Haptic Display of Automation During Manual Control of Vehicle Heading Summary: of automobile steering. The...

  8. Apparatus and methods for aligning holes through wheels and spacers and stacking the wheels and spacers to form a turbine rotor

    DOE Patents [OSTI]

    Berry, Robert Randolph (Greenville, SC); Palmer, Gene David (Clifton Park, NY); Wilson, Ian David (Clifton Park, NY)

    2000-01-01T23:59:59.000Z

    A gas turbine rotor stacking fixture includes upstanding bolts for reception in aligned bolt holes in superposed aft disk, wheels and spacers and upstanding alignment rods received in openings of the disk, wheels and spacers during the rotor stacking assembly. The axially registering openings enable insertion of thin-walled tubes circumferentially about the rim of the rotor, with tight tolerances to the openings to provide supply and return steam for cooling buckets. The alignment rods have radial dimensions substantially less than their dimensions in a circumferential direction to allow for radial opening misalignment due to thermal expansion, tolerance stack-up and wheel-to-spacer mismatch due to rabbet mechanical growth. The circumferential dimension of the alignment rods affords tightly toleranced alignment of the openings through which the cooling tubes are installed.

  9. Numerical Analysis of the Channel Wheel Fresh Air Ventilator Under Frosting Conditions

    E-Print Network [OSTI]

    Gao, B.; Dong, Z.; Cheng, Z.; Luo, E.

    2006-01-01T23:59:59.000Z

    As new equipment, the channel wheel fresh air ventilator has become increasingly popular in recent years. However, when such equipment is operated under low ambient temperature in the freezing area in winter, the formation of frost on the outdoor...

  10. Development of legged, wheeled, and hybrid rover mobility models to facilitate planetary surface exploration mission analysis

    E-Print Network [OSTI]

    McCloskey, Scott H. (Scott Haddon)

    2007-01-01T23:59:59.000Z

    This work discusses the Mars Surface Exploration (MSE) tool and its adaptation to model rovers featuring legged, wheeled, and hybrid mobility. MSE is a MATLAB based systems engineering tool that is capable of rapidly ...

  11. The effects of gantry tilt on breast dose and image noise in cardiac CT

    SciTech Connect (OSTI)

    Hoppe, Michael E.; Gandhi, Diksha; Schmidt, Taly Gilat [Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin 53233 (United States)] [Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin 53233 (United States); Stevens, Grant M. [GE Healthcare, Waukesha, Wisconsin 53188 (United States)] [GE Healthcare, Waukesha, Wisconsin 53188 (United States); Foley, W. Dennis [Department of Radiology, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee, Wisconsin 53226 (United States)] [Department of Radiology, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee, Wisconsin 53226 (United States)

    2013-12-15T23:59:59.000Z

    Purpose: This study investigated the effects of tilted-gantry acquisition on image noise and glandular breast dose in females during cardiac computed tomography (CT) scans. Reducing the dose to glandular breast tissue is important due to its high radiosensitivity and limited diagnostic significance in cardiac CT scans.Methods: Tilted-gantry acquisition was investigated through computer simulations and experimental measurements. Upon IRB approval, eight voxelized phantoms were constructed from previously acquired cardiac CT datasets. Monte Carlo simulations quantified the dose deposited in glandular breast tissue over a range of tilt angles. The effects of tilted-gantry acquisition on breast dose were measured on a clinical CT scanner (CT750HD, GE Healthcare) using an anthropomorphic phantom with MOSFET dosimeters in the breast regions. In both simulations and experiments, scans were performed at gantry tilt angles of 0°–30°, in 5° increments. The percent change in breast dose was calculated relative to the nontilted scan for all tilt angles. The percent change in noise standard deviation due to gantry tilt was calculated in all reconstructed simulated and experimental images.Results: Tilting the gantry reduced the breast dose in all simulated and experimental phantoms, with generally greater dose reduction at increased gantry tilts. For example, at 30° gantry tilt, the dosimeters located in the superior, middle, and inferior breast regions measured dose reductions of 74%, 61%, and 9%, respectively. The simulations estimated 0%–30% total breast dose reduction across the eight phantoms and range of tilt angles. However, tilted-gantry acquisition also increased the noise standard deviation in the simulated phantoms by 2%–50% due to increased pathlength through the iodine-filled heart. The experimental phantom, which did not contain iodine in the blood, demonstrated decreased breast dose and decreased noise at all gantry tilt angles.Conclusions: Tilting the gantry reduced the dose to the breast, while also increasing noise standard deviation. Overall, the noise increase outweighed the dose reduction for the eight voxelized phantoms, suggesting that tilted gantry acquisition may not be beneficial for reducing breast dose while maintaining image quality.

  12. Some quantitative measurements of intraruminal digestion in steers

    E-Print Network [OSTI]

    Wilson, Stephen

    1971-01-01T23:59:59.000Z

    Butyrate production rates 29 30 Iso-butyrate production rates 31 Valerate production rates 32 Iso-valerate production rates 33 Caproate production rates 34 Changes in chromium concentration of rumen fluid with time (Experiment 9, XB steer, floury... incubations 1, 2, 3) . 63 15 Accumulation of iso-butyrate, in ui tz'o (Experiment 12, H. corneous, 7 ? 23-71, triplicate incubations 1, 2, 3). 64 16 Accumulation of butyrate, in sitz'o (Fxperiment 12, H. corneous, 7-23-71, triplicate incubations 1, 2, 3...

  13. Evolution of the contact network during tilting cycles of a granular pile under gravity

    E-Print Network [OSTI]

    Staron, Lydie

    Evolution of the contact network during tilting cycles of a granular pile under gravity S. Deboeuf of a granular pile undergoing quasi-static tilting cycles in the gravity field. The volumic deformation of granular piles during continuous load in the gravity field (Staron, Vilotte, & Radjai 2002). Far before

  14. Escape configuration lattice near the nematic-isotropic transition: Tilt analogue of blue phases

    E-Print Network [OSTI]

    Buddhapriya Chakrabarti; Yashodhan Hatwalne; N. V. Madhusudana

    2006-04-28T23:59:59.000Z

    We predict the possible existence of a new phase of liquid crystals near the nematic-isotropic ($ NI $) transition. This phase is an achiral, tilt-analogue of the blue phase and is composed of a lattice of {\\em double-tilt}, escape-configuration cylinders. We discuss the structure and the stability of this phase and provide an estimate of the lattice parameter.

  15. Self-Optimization of Antenna Tilt and Pilot Power for Dedicated Channels

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Self-Optimization of Antenna Tilt and Pilot Power for Dedicated Channels Abstract-- In Radio Access Networks (RAN), fixed configurations result in poor network efficiency. This sub- optimal performance present a framework for a self-optimizing RAN, which adapts Antenna Tilt and Pilot Power according

  16. Risk Management Steering Committee MINUTES OF THE MEETING of October 26, 2009

    E-Print Network [OSTI]

    Victoria, University of

    Risk Management Steering Committee MINUTES OF THE MEETING of October 26, 2009 3:00 ­ 4:30 pm ASB scheduled for #12;Risk Management Steering Committee Minutes October 26, 2009 Page 2 November 2nd through 5 would like to include students in residence as a high risk group. 4.2 Risk Register Update and Review

  17. Risk Management Steering Committee MINUTES OF THE MEETING of April 26, 2010

    E-Print Network [OSTI]

    Victoria, University of

    Risk Management Steering Committee MINUTES OF THE MEETING of April 26, 2010 9:30 ­ 11:00 am, ASB to leave" from 4.2 #12;Risk Management Steering Committee Minutes April 26, 2010 Page 2 4. Business Arising: 4.1 Strategic Risk Register Review ­ Mr. Coward Mr. Coward presented an overview of the oversight

  18. A Time-coherent Model for the Steering of Parallel Simulations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Time-coherent Model for the Steering of Parallel Simulations Aur´elien Esnard, Micha¨el Dussere data. Only VASE [3] proposes a high-level model of simulations based on a control-flow graph (CFG an efficient steering envi- ronment which combines both the temporal coherence and a precise model of parallel

  19. Timber Quality Steering Group Meeting at Grizedale Information Centre, Lake District, 23rd

    E-Print Network [OSTI]

    seedling material and that heather control needs to be suppressed. 3.6 Steering Group's Achievements (See1 Timber Quality Steering Group 9th Meeting at Grizedale Information Centre, Lake District, 23rd Drewitt (student) have been looking at external characteristics such as brand model, frequency and angle

  20. On the Trajectories and Coordination of Steered Particles with Time-Periodic Speed Profiles

    E-Print Network [OSTI]

    Leonard, Naomi

    of collective motion and coordinated control to model individual agents as steered particles in the plane contains no frequency content at the turning rate. Steering and speed control laws are derived and analysis of coordinating control laws. This model has been readily adopted in practice because it can

  1. FULL SHEET CONTROL THROUGH THE USE OF STEER-ABLE NIPS Edgar I. Ergueta

    E-Print Network [OSTI]

    Horowitz, Roberto

    FULL SHEET CONTROL THROUGH THE USE OF STEER-ABLE NIPS Edgar I. Ergueta University of California model, and the control law necessary to precisely correct for the lateral and angular positions with the addition of internal loops for the control of the process direction velocity and steering position

  2. Applications in Computational Medicine using SCIRun: A Computational Steering Programming Environment

    E-Print Network [OSTI]

    Utah, University of

    of the model­ ing and simulation process could be controlled graphically within the context of a single steering the simulation interactively as it progresses. The SCIRun system implements a new model is kept to a minimum. Computational steering has been defined as ``the capacity to control the execution

  3. Task-Induced Symmetry and Reduction in Kinematic Systems with Application to Needle Steering

    E-Print Network [OSTI]

    model of steerable bevel-tip nee- dles. The resulting controllers cause the needle tip to track the basis for a new planning and control framework for needle steering. I. INTRODUCTION Consider the motion motivation for the present work is needle steering which has been modeled as a kinematic system, we consider

  4. Experimental testing and modelling of a passive mechanical steering compensator for high-performance motorcycles

    E-Print Network [OSTI]

    Cambridge, University of

    Experimental testing and modelling of a passive mechanical steering compensator for high of the method to the control of motorcycles steer- ing instabilities. Simulation studies have shown-- This paper presents experimental results and a modelling study of a prototype mechanical device that repre

  5. Toward a Computational Steering Environment for Legacy Coupled Simulations Nicolas Richart Aurelien Esnard Olivier Coulaud

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    present an abstract model to steer legacy coupled simulations that follow the Multiple-SPMD paradigm or the client/server paradigm. This model extends our previous work for the steering of classical SPMD sim-level model for the representation of sim- ulations based on a control-flow graph (CFG) and provides a data

  6. Active Gaze Control Improves Optic Flow-Based Segmentation and Steering

    E-Print Network [OSTI]

    Neumann, Heiko

    Active Gaze Control Improves Optic Flow-Based Segmentation and Steering Florian Raudies1,2 *, Ennio research on optic flow revealed its invariant properties and influence on steering control. This early. To support our suggestion we derive an analytical model that shows: Tangentially fixating the outer surface

  7. Feedback Control for Steering Needles Through 3D Deformable Tissue Using Helical Paths

    E-Print Network [OSTI]

    O'Brien, James F.

    Feedback Control for Steering Needles Through 3D Deformable Tissue Using Helical Paths Kris Hauser controller that steers a needle along 3D helical paths, and varies the helix radius to correct a model predictive control framework that chooses a needle twist rate such that the predicted helical

  8. Motion Planning Under Uncertainty for Image-Guided Medical Needle Steering

    E-Print Network [OSTI]

    Branicky, Michael S.

    Process, image-guided medical procedure 1 Introduction Advances in medical imaging modalities such as MRIMotion Planning Under Uncertainty for Image-Guided Medical Needle Steering Ron Alterovitz it to steerable needles, a new class of flexible bevel- tip medical needles that physicians can steer through soft

  9. Integrated vehicle dynamics control via coordination of active front steering and rear braking

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Integrated vehicle dynamics control via coordination of active front steering and rear brakingComputer and Automation Research Institue, Hungarian Academy of Sciences, Kende u. 13-17, H-1111, Budapest, Hungary, Email front steering and rear braking in a driver- assist system for vehicle yaw control. The proposed control

  10. Vehicle yaw control via coordinated use of steering/braking systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Vehicle yaw control via coordinated use of steering/braking systems M. Doumiati, O. Sename, J.sename@gipsa-lab.grenoble-inp.fr) Computer and Automation Research Institute, Hungarian Academy of Sciences, Kende u. 13-17, H-1111, Budapest with steer- ing/braking coordination task for vehicle yaw control. For steerability enhancement, only active

  11. 1 Introduction How do drivers steer their car around the curves of a winding road? On the surface,

    E-Print Network [OSTI]

    Salvucci, Dario D.

    control model of steering Perception, 2004, volume 33, pages 1233 ^ 1248 Dario D Salvucci Department is not effective at fast driving speeds. Instead, steering has been described as a two-level control strategy (eg of the two-level model of steering comes from a driving simulator study in which only small slices

  12. A 3D Trajectory-Following Controller for Bevel-Steered Needles Xianshi Xie and Robert J. Webster III

    E-Print Network [OSTI]

    Webster III, Robert James

    sufficient curvature for control and A. M. Okamura. Nonholonomic Modeling of Needle Steering. Int'l. J. RobA 3D Trajectory-Following Controller for Bevel-Steered Needles Xianshi Xie and Robert J. Webster to obtain: compensating unmodeled disturbances Needle Entry Point Steer Around Obstacles Control Law

  13. Controlling a Robotically Steered Needle in the Presence of Torsional Friction Kyle B. Reed Allison M. Okamura Noah J. Cowan

    E-Print Network [OSTI]

    Controlling a Robotically Steered Needle in the Presence of Torsional Friction Kyle B. Reed Allison the needle is controlled. Our experiments show that several common phantom tissues used in needle steering avoiding obstacles. See [4] for a survey that includes robotically steered needles and insertion modeling

  14. Switched system modeling and robust steering control of the tail end phase in a hot strip mill

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Switched system modeling and robust steering control of the tail end phase in a hot strip mill Ivan`eres-l`es-Metz Cedex, France Abstract In this article, a robust steering control for the last phase of the rolling switched system. The switchings make the system unstable and the task of the tail end steering control

  15. 'Tilting' the Universe with the Landscape Multiverse: The 'Dark' Flow

    E-Print Network [OSTI]

    L. Mersini-Houghton; R. Holman

    2008-10-30T23:59:59.000Z

    The theory for the selection of the initial state of the universe from the landscape multiverse predicts superhorizon inhomogeneities induced by nonlocal entanglement of our Hubble volume with modes and domains beyond the horizon. Here we show these naturally give rise to a bulk flow with correlation length of order horizon size. The modification to the gravitational potential has a characteristic scale $L_{1} \\simeq 10^{3} H^{-1}$, and it originates from the preinflationary remnants of the landscape. The 'tilt' in the potential induces power to the lowest CMB multipoles, with the dominant contribution being the dipole and next, the quadrupole. The induced multipoles $l \\le 2$ are aligned with an axis normal to their alignment plane being oriented along the preferred frame determined by the dipole. The preferred direction is displayed by the velocity field of the bulk flow relative to the expansion frame of the universe. The parameters are tightly constrained thus the derived modifications lead to robust predictions for testing our theory. The 'dark' flow was recently discovered by Kashlinsky et al. to be about $700 km/s$ which seems in good agreement with our predictions for the induced dipole of order $3 \\mu K$. Placed in this context, the discovery of the bulk flow by Kashlinsky et al. becomes even more interesting as it may provide a probe of the preinflationary physics and a window onto the landscape multiverse.

  16. Phonon thermal transport through tilt grain boundaries in strontium titanate

    SciTech Connect (OSTI)

    Zheng, Zexi; Chen, Xiang; Yang, Shengfeng; Xiong, Liming; Chen, Youping [Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611 (United States); Deng, Bowen; Chernatynskiy, Aleksandr [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States)

    2014-08-21T23:59:59.000Z

    In this work, we perform nonequilibrium molecular dynamics simulations to study phonon scattering at two tilt grain boundaries (GBs) in SrTiO{sub 3}. Mode-wise energy transmission coefficients are obtained based on phonon wave-packet dynamics simulations. The Kapitza conductance is then quantified using a lattice dynamics approach. The obtained results of the Kapitza conductance of both GBs compare well with those obtained by the direct method, except for the temperature dependence. Contrary to common belief, the results of this work show that the optical modes in SrTiO{sub 3} contribute significantly to phonon thermal transport, accounting for over 50% of the Kapitza conductance. To understand the effect of the GB structural disorder on phonon transport, we compare the local phonon density of states of the atoms in the GB region with that in the single crystalline grain region. Our results show that the excess vibrational modes introduced by the structural disorder do not have a significant effect on phonon scattering at the GBs, but the absence of certain modes in the GB region appears to be responsible for phonon reflections at GBs. This work has also demonstrated phonon mode conversion and simultaneous generation of new modes. Some of the new modes have the same frequency as the initial wave packet, while some have the same wave vector but lower frequencies.

  17. Tilted CDM versus WDM in the Subgalactic Scuffle

    E-Print Network [OSTI]

    James S. Bullock

    2001-10-31T23:59:59.000Z

    Although the currently favored cold dark matter plus cosmological constant model (LCDM) has proven to be remarkably successful on large scales, on subgalactic scales it faces some potentially fatal difficulties; these include over-producing dwarf satellite galaxies and predicting excessive central densities in dark halos. Among the most natural cosmological solutions to these problems is to replace cold dark matter with a warm species (LWDM). The warm component acts to reduce the small-scale power, resulting in fewer galactic subhalos and lower halo central densities. An alternative model with a mild ``tilt'' in the inflationary power spectrum (TLCDM; n =0.9) similarly reduces the central densities of dark halos, although the substructure abundance remains relatively high. Here I argue that because dwarf galaxy formation should be suppressed in the presence of a strong ionizing background, favored LWDM models will generally under-predict the observed abundance of dwarf galaxies. The satellite count for TLCDM fairs much better, as long as the photoionization effect is taken into account. TLCDM provides a more successful alternative to LWDM on subgalactic scales with the added attraction that it relies on only a minor, natural adjustment to the standard framework of CDM.

  18. A unified framework for reactive control of wheeled mobile manipulators V. Padois, J.-Y. Fourquet, P. Chiron

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A unified framework for reactive control of wheeled mobile manipulators V. Padois, J.-Y. Fourquet well suited for reactive control approaches which, in the case of mobile manipulation missions a unified modeling framework for wheeled mobile manipulators (WMM). Where most work in the literature often

  19. Kinematic and dynamic model-based control of wheeled mobile manipulators: a unified framework for reactive approaches

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Kinematic and dynamic model-based control of wheeled mobile manipulators: a unified framework aims at providing a unified modeling framework for the reactive control of wheeled mobile manipulators systems is given. This modeling framework is particularly well suited for reactive control approaches

  20. Optimal Power Flow Formulation in Market of Retail Wheeling Taiyou Yong, Student Member, IEEE Robert Lasseter, Fellow, IEEE

    E-Print Network [OSTI]

    power plants, nuclear power plants etc and selling power to consumers. The suppliers have contractsOptimal Power Flow Formulation in Market of Retail Wheeling Taiyou Yong, Student Member, IEEE at Madison, Madison, Wisconsin, USA Abstract: Power system deregulation along with retail wheeling

  1. Tilt-up concrete panels : an investigation of flexural stresses and punching shear during lifting

    E-Print Network [OSTI]

    Bono, Matthew P. (Matthew Paul)

    2011-01-01T23:59:59.000Z

    Tilt-up construction is becoming more popular in the United States due to its ease of construction, reliability, and relatively low construction and maintenance costs. In its most typical form, a concrete panel is cast on ...

  2. Analysis of flexure pivot tilting pad gas bearings with different damper configurations 

    E-Print Network [OSTI]

    Rimpel, Aaron Michael

    2009-05-15T23:59:59.000Z

    Hydrodynamic flexure pivot tilting pad gas bearings (FPTPGBs) can enable successful operation of oil-free microturbomachinery. This work presents the experimental and analytical study of such bearings with different damper configurations. A test rig...

  3. A Novel Computational Model for Tilting Pad Journal Bearings with Soft Pivot Stiffnesses

    E-Print Network [OSTI]

    Tao, Yujiao 1988-

    2012-12-10T23:59:59.000Z

    A novel tilting pad journal bearing model including pivot flexibility as well as temporal fluid inertia effects on the thin film fluid flow aims to accurately predict the bearing forced performance. The predictive model also accounts for the thermal...

  4. Measurements of static loading characteristics of a Flexurepivot Tilt Pad Hydrodynamic Bearing

    E-Print Network [OSTI]

    Walton, Nicholas Van Edward

    1995-01-01T23:59:59.000Z

    An experimental investigation examining the static loading characteristics of a four-pad, KMC FLEXUREPIVOT Tilt Pad Hydrodynamic Bearing is presented. Tests are conducted on the TRACE Fluid Film Bearing Element Test Rig for journal speeds ranging...

  5. Design and characterization of a planar mechanism for passive tilt-compensation

    E-Print Network [OSTI]

    Lai, Justin Yi-Shen

    2007-01-01T23:59:59.000Z

    This work investigated the design and testing of a planar mechanism for passively compensating tilt between two flat surfaces brought into close proximity. The proposed design uses flexural components which eliminate ...

  6. K'-Theory of a Cohen-Macaulay Local Ring with n-Cluster Tilting Object

    E-Print Network [OSTI]

    Navkal, Viraj

    2013-01-01T23:59:59.000Z

    Categories and K-theory Definition 4.1. An exact category isLocalizations in K-Theory Definition 8.11. Let R be a ringdefinition of n-cluster tilting comes from invariant theory.

  7. Construction techniques and costs of tilt-up concrete farm structures

    E-Print Network [OSTI]

    Winsett, Ivan Lane

    1957-01-01T23:59:59.000Z

    ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 25 2S Ths warehouse with all Panels . 'honed and ths Pilaster Focal in Place Awaiting the Costing of ths Pilastars. . . . 29 14. Detail of Corner Pilaster~ Pilaster Fora, snd Footing Used in ths Concrete Tilt-Up w'arehouse . ~ . . ~ ~. . . . . 30... ~ ~ ~ ~ ~ ~ ~ 46 26. Detail of Zaproesd Corner Pilaster, Pilaster Rora, and Footing Used in the Concrete Tilt4p Anginal Shelter ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 48 27. The Antnal shelter heady for (hating the ConcNts Posts and PDa sts...

  8. Report of the Finance Cost Reduction Working Group to the Federal ESPC Steering Committee

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Report of the Finance Cost Reduction Working Group to the Federal ESPC Steering Committee Reducing Financing Costs for Federal ESPCs Federal Energy Management Program Energy Savings Performance Contracting 2. REQUIREMENTS FOR COMPETITIVE FINANCING ACQUISITION .................................7 2.1 Use

  9. Influence of acetogenic versus propiogenic supplements on adipose tissue accretion in stocker steers grazing ryegrass pasture 

    E-Print Network [OSTI]

    Bumpus, Emalee Kate

    2006-08-16T23:59:59.000Z

    Fifty-eight high grade Bonsmara steers were used to evaluate effects of high-fiber versus high-starch pasture supplements on subcutaneous (s.c.) and intramuscular (i.m.) adipose tissue accretion during growing and finishing ...

  10. TurnItInPilotReport2.doc 1 Turnitin Project Steering Committee

    E-Print Network [OSTI]

    -based plagiarism detection system at Murdoch. Steering Committee Membership Rob Phillips (TLC) Chris Foley (ITS) Pat James (ITS) Suellen Tapsall (DOA) Colin Beasley (TLC) Suzanne Dziurawiec (DHS) Marion Griffiths

  11. Design of a small fast steering mirror for airborne and aerospace applications

    E-Print Network [OSTI]

    Boulet, Michael Thomas

    2008-01-01T23:59:59.000Z

    This thesis presents the analysis and design of a small advanced fast steering mirror (sAFSM) for airborne and aerospace platforms. The sAFSM provides feedback-controlled articulation of two rotational axes for precision ...

  12. Multipartite Einstein-Podolsky-Rosen steering and genuine tripartite entanglement with optical networks

    E-Print Network [OSTI]

    Seiji Armstrong; Meng Wang; Run Yan Teh; Qihuang Gong; Qiongyi He; Jiri Janousek; Hans-Albert Bachor; Margaret D. Reid; Ping Koy Lam

    2014-12-22T23:59:59.000Z

    The Einstein-Podolsky-Rosen (EPR) paradox established a link between entanglement and nonlocality in quantum mechanics. EPR steering is the nonlocality associated with the EPR paradox and has traditionally only been investigated between two parties. Here, we present the first experimental observations of multipartite EPR steering, and of the genuine tripartite continuous variable entanglement of three mesoscopic optical systems. We explore different linear optics networks - each one with optimised asymmetries - that create multipartite steerable states containing different numbers of quantised optical modes (qumodes). By introducing asymmetric loss on a 7-qumode state, we characterize 8 regimes of directional steering, showing that N + 1 regimes exist for an N-qumode state. Further, we reveal the directional monogamy of steering, and experimentally demonstrate continuous variable one-sided semi device-independent quantum secret sharing. Our methods establish principles for the development of multiparty quantum communication protocols with asymmetric observers, and can be extended to qubits, whether photonic, atomic, superconducting, or otherwise.

  13. aasld-fda-nih-phrma hepatotoxicity steering: Topics by E-print...

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

    that do not violate a Bell inequality. Sacha Kocsis; Michael J. W. Hall; Adam J. Bennet; Dylan J. Saunders; G. J. Pryde 2014-08-07 125 A Computational Steering Model Applied...

  14. Sources of biological variation in residual feed intake in growing and finishing steers 

    E-Print Network [OSTI]

    Brown, Erin Gwen

    2006-04-12T23:59:59.000Z

    Objectives of this research were to characterize residual feed intake (RFI) in growing and finishing steers and examine phenotypic correlations between performance, feed efficiency, carcass, digestib ility, and physiological ...

  15. Design of oversampling current steering DAC with 640MHz equivalent clock frequency

    E-Print Network [OSTI]

    Choi, Yunyoung

    2002-01-01T23:59:59.000Z

    DESIGN OF OVERSAMPLING CURRENT STEERING DAC WITH 640MHZ EQUIVALENT CLOCK FREQUENCY A Thesis by YUNYOUNG CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 2002 Major Subject: Electrical Engineering DESIGN OF OVERSAMPLING CURRENT STEERING DAC WITH 640MHZ EQUIVALENT CLOCK FREQUENCY A Thesis by YUNYOUNG CHOI Submitted to Texas A8rM University in partial fulfillment...

  16. Does DOF Separation on Elastic Devices Improve User 3D Steering Task Performance?

    E-Print Network [OSTI]

    Casiez, Géry

    Does DOF Separation on Elastic Devices Improve User 3D Steering Task Performance? G´ery CasiezHaptic in a 3D steering task. Unlike other devices intended to interact in 3D with one end-effector, the Digi the manipulation of a stylus or thimble, and the SpaceMouse [2] is an elastic device to rate control objects in 3D

  17. Performance and nutrient utilization of steers fed short term reconstituted grains

    E-Print Network [OSTI]

    Simpson, Edward James

    1982-01-01T23:59:59.000Z

    experiment. The ration's were composed on a dry basis of 86X grain and 14X of the same protein supplement used in the feeding experiment. Eight Beefmaster crossbred steers of the same origin and weight as those used in the growth trial were assigned...PERFORMANCE AND NUTRIENT UTILIZATION OF STEERS FED SHORT TERM RECONSTITUTED GRAINS A Thesis by EDWARD JAMES SIMPSON, JR. Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree...

  18. Trip report, Interagency Manufacturing Operations Group (IMOG) Steering Committee meeting, November 29, 1989

    SciTech Connect (OSTI)

    Butterworth, R.R.

    1989-12-06T23:59:59.000Z

    As the Subgroup Chairman for the Process Automation Control Technology Subgroup of IMOG, I was requested to attend the annual Steering Committee Meeting held this year at the Allied-Signal Kansas City Plant and summarize the past year's activities of the Subgroup. The next IMOG Steering Committee Meeting will be held November 14 and 15, 1990 in Los Alamos. The next Process Automation Control Technology Subgroup Meeting will be held in June, 1990 in Rocky Flats.

  19. Cooperation of Heterogeneous, Autonomous Robots: A Case Study of Humanoid and Wheeled Robots

    E-Print Network [OSTI]

    Stryk, Oskar von

    . I. INTRO With the growing importance of autonomous mobile robots in industrial and researchCooperation of Heterogeneous, Autonomous Robots: A Case Study of Humanoid and Wheeled Robots Jutta- ation of a strongly heterogeneous robot team, composed of a highly articulated humanoid robot

  20. Nonparametric Identification of Linearizations and Uncertainty using Gaussian Process Models Application to Robust Wheel Slip Control

    E-Print Network [OSTI]

    Williamson, John

    models, taking into account their uncertainty. The approach is applied to a simulated wheel slip control task illustrating controller development based on a nonparametric model of the unknown friction of the nonlinear models' derivatives. I. INTRODUCTION Robust control is a fairly mature field, in particular

  1. ENERGY-BASED LIMIT CYCLE COMPENSATION FOR DYNAMICALLY BALANCING WHEELED INVERTED PENDULUM MACHINES

    E-Print Network [OSTI]

    Dollar, Aaron M.

    ENERGY-BASED LIMIT CYCLE COMPENSATION FOR DYNAMICALLY BALANCING WHEELED INVERTED PENDULUM MACHINES are not well known. The effects of these non-linearities can be observed in the energy behavior of IP balancing. While in this paper we use an energy-based observer to detect and correct limit cycles while balancing

  2. Just Add Wheels: Leveraging Commodity Laptop Hardware for Robotics and AI Education

    E-Print Network [OSTI]

    Sukhatme, Gaurav S.

    . By adding wheels, motors and a motor control board, a modern laptop can be transformed into a capable robot-rich devices. This trend, driven by consumer demand and enabled by improve- ments in solid-state sensor, by using a student's own laptop as part of a capable robot. With the addition of servo motors, a motor

  3. Mixed Control Moment Gyro and Momentum Wheel Attitude Control C. Eugene Skelton II

    E-Print Network [OSTI]

    Hall, Christopher D.

    , or non-moving devices like magnetic torquers. A momentum wheel is a high inertia flywheel mounted which makes them non-ideal for rapid slewing. A control moment gyro has a flywheel mounted on a motor that spins at a constant relative speed. The flywheel and motor are mounted to a gimbal motor that can rotate

  4. Rediscovering the Wheel. Thermochemical Analysis of Energetics of the Aromatic Diazines

    E-Print Network [OSTI]

    Chickos, James S.

    calorimetry and vapor pressure measurements. The gas and condensed phase enthalpies of formation of the parent not the case for diazabenzenes. The previous comprehensive experimental study of both the condensed and gasRediscovering the Wheel. Thermochemical Analysis of Energetics of the Aromatic Diazines Sergey P

  5. Quantum steering of multimode Gaussian states by Gaussian measurements: monogamy relations and the Peres conjecture

    E-Print Network [OSTI]

    Se-Wan Ji; M. S. Kim; Hyunchul Nha

    2015-03-15T23:59:59.000Z

    It is a topic of fundamental and practical importance how a quantum correlated state can be reliably distributed through a noisy channel for quantum information processing. The concept of quantum steering recently defined in a rigorous manner is relevant to study it under certain circumstances and we here address quantum steerability of Gaussian states to this aim. In particular, we attempt to reformulate the criterion for Gaussian steering in terms of local and global purities and show that it is sufficient and necessary for the case of steering a 1-mode system by a $N$-mode system. It subsequently enables us to reinforce a strong monogamy relation under which only one party can steer a local system of 1-mode. Moreover, we show that only a negative partial-transpose state can manifest quantum steerability by Gaussian measurements in relation to the Peres conjecture. We also discuss our formulation for the case of distributing a two-mode squeezed state via one-way quantum channels making dissipation and amplification effects, respectively. Finally, we extend our approach to include non-Gaussian measurements, more precisely, all orders of higher-order squeezing measurements, and find that this broad set of non-Gaussian measurements is not useful to demonstrate steering for Gaussian states beyond Gaussian measurements.

  6. Blue-tilted Tensor Spectrum and Thermal History of the Universe

    E-Print Network [OSTI]

    Sachiko Kuroyanagi; Tomo Takahashi; Shuichiro Yokoyama

    2014-07-17T23:59:59.000Z

    We investigate constraints on the spectral index of primordial gravitational waves (GWs), paying particular attention to a blue-tilted spectrum. Such constraints can be used to test a certain class of models of the early Universe. We investigate observational bounds from LIGO+Virgo, pulsar timing and big bang nucleosynthesis, taking into account the suppression of the amplitude at high frequencies due to reheating after inflation and also late-time entropy production. Constraints on the spectral index are presented by changing values of parameters such as reheating temperatures and the amount of entropy produced at late time. We also consider constraints under the general modeling approach which can approximately describe various scenarios of the early Universe. We show that the constraints on the blue spectral tilt strongly depend on the underlying assumption and, in some cases, a highly blue-tilted spectrum can still be allowed.

  7. No evidence for the blue-tilted power spectrum of relic gravitational waves

    E-Print Network [OSTI]

    Huang, Qing-Guo

    2015-01-01T23:59:59.000Z

    In this paper, we constrain the tilt of the power spectrum of relic gravitational waves by combining the data from BICEP2/Keck array and Planck (BKP) and the Laser Interferometer Gravitational-Waves Observatory (LIGO). From the data of BKP B-modes, the constraint on the tensor tilt is $n_t=0.66^{+1.83}_{-1.44}$ at the $68%$ confidence level. By further adding the LIGO upper limit on the energy density of gravitational waves, the constraint becomes $n_t=-0.76^{+1.37}_{-0.52}$ at the $68%$ confidence level. We conclude that there is no evidence for a blue-tilted power spectrum of relic gravitational waves and either sign of the index of tensor power spectrum is compatible with the data.

  8. No evidence for the blue-tilted power spectrum of relic gravitational waves

    E-Print Network [OSTI]

    Qing-Guo Huang; Sai Wang

    2015-02-09T23:59:59.000Z

    In this paper, we constrain the tilt of the power spectrum of relic gravitational waves by combining the data from BICEP2/Keck array and Planck (BKP) and the Laser Interferometer Gravitational-Waves Observatory (LIGO). From the data of BKP B-modes, the constraint on the tensor tilt is $n_t=0.66^{+1.83}_{-1.44}$ at the $68%$ confidence level. By further adding the LIGO upper limit on the energy density of gravitational waves, the constraint becomes $n_t=-0.76^{+1.37}_{-0.52}$ at the $68%$ confidence level. We conclude that there is no evidence for a blue-tilted power spectrum of relic gravitational waves and either sign of the index of tensor power spectrum is compatible with the data.

  9. Design and initial characterization of a compact, ultra high vacuum compatible, low frequency, tilt accelerometer

    SciTech Connect (OSTI)

    O’Toole, A., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com [Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 405 Hilgard Ave, Los Angeles, California 90095 (United States); Peńa Arellano, F. E. [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Rodionov, A. V.; Kim, C. [California Institute of Technology, Pasadena, California 91125 (United States); Shaner, M.; Asadoor, M. [Mayfield Senior School, 500 Bellefontaine Street Pasadena, California 91105 (United States); Sobacchi, E. [Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa (Italy); Dergachev, V.; DeSalvo, R., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com [LIGO Laboratory, California Institute of Technology, MS 100-36, Pasadena, California 91125 (United States); Bhawal, A. [Arcadia High School, 180 Campus Drive, Arcadia, California 91007 (United States); Gong, P. [Department of Precision Instrument, Tsinghua University, Beijing 100084 (China); Lottarini, A. [Department of Computer Science, University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Minenkov, Y. [Sezione INFN Tor Vergata, via della Ricerca Scientfica 1, 00133 Roma (Italy); Murphy, C. [School of Physics, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, Western Australia 6009 (Australia)

    2014-07-15T23:59:59.000Z

    A compact tilt accelerometer with high sensitivity at low frequency was designed to provide low frequency corrections for the feedback signal of the Advanced Laser Interferometer Gravitational Wave Observatory active seismic attenuation system. It has been developed using a Tungsten Carbide ceramic knife-edge hinge designed to avoid the mechanical 1/f noise believed to be intrinsic in polycrystalline metallic flexures. Design and construction details are presented; prototype data acquisition and control limitations are discussed. The instrument's characterization reported here shows that the hinge is compatible with being metal-hysteresis-free, and therefore also free of the 1/f noise generated by the dislocation Self-Organized Criticality in the metal. A tiltmeter of this kind will be effective to separate the ground tilt component from the signal of horizontal low frequency seismometers, and to correct the ill effects of microseismic tilt in advanced seismic attenuation systems.

  10. Integration of a testbed for examining the interaction of Mars rover wheels with a Mars soil simulant

    E-Print Network [OSTI]

    Okafor, Chiedozie A. (Chiedozie Arinze)

    2011-01-01T23:59:59.000Z

    Integration and experimental testing was performed on a testbed for examining the interaction of Mars rover wheels with a Mars soil simulant. The testbed included a horizontal carriage that had a encoder to measure the ...

  11. Numerical relativity simulations of thick accretion disks around tilted Kerr black holes

    E-Print Network [OSTI]

    Vassilios Mewes; José A. Font; Filippo Galeazzi; Pedro J. Montero; Nikolaos Stergioulas

    2015-06-12T23:59:59.000Z

    In this work we present 3D numerical relativity simulations of thick accretion disks around {\\it tilted} Kerr black holes. We investigate the evolution of three different initial disk models with a range of initial black hole spin magnitudes and tilt angles. For all the disk-to-black hole mass ratios considered ($0.044-0.16$) we observe significant black hole precession and nutation during the evolution. This indicates that for such mass ratios, neglecting the self-gravity of the disks by evolving them in a fixed background black hole spacetime is not justified. We find that the two more massive models are unstable against the Papaloizou-Pringle (PP) instability and that those PP-unstable models remain unstable for all initial spins and tilt angles considered, showing that the development of the instability is a very robust feature of such PP-unstable disks. The tilt between the black hole spin and the disk is strongly modulated during the growth of the PP instability, causing a partial global realignment of black hole spin and disk angular momentum in the most massive model with constant specific angular momentum $l$. For the model with non-constant $l$-profile we observe a long-lived $m=1$ non-axisymmetric structure which shows strong oscillations of the tilt angle in the inner regions of the disk. We attribute this effect to the development of Kozai-Lidov oscillations. Our simulations also confirm earlier findings that the development of the PP instability causes the long-term emission of large amplitude gravitational waves, predominantly for the $l=m=2$ multipole mode. The imprint of the BH precession on the gravitational waves from tilted BH-torus systems remains an interesting open issue that would require significantly longer simulations than those presented in this work.

  12. Optimal Three-Material Wheel Assemblage of Conducting and Elastic Composites

    E-Print Network [OSTI]

    Andrej Cherkaev

    2011-05-22T23:59:59.000Z

    We describe a new type of three material microstructures which we call wheel assemblages, that correspond to extremal conductivity and extremal bulk modulus for a composite made of two materials and an ideal material. The exact lower bounds for effective conductivity and matching laminates was found in (Cherkaev, 2009) and for anisotropic composites, in (Cherkaev, Zhang, 2011). Here, we show different optimal structures that generalize the classical Hashin-Shtrikman coated spheres (circles). They consist of circular inclusions which contain a solid central circle (hub) and radial spikes in a surrounding annulus, and (for larger volume fractions of the best material) an annulus filled with it. The same wheel assemblages are optimal for the pair of dual problems of minimal conductivity (resistivity) of a composite made from two materials and an ideal conductor (insulator), in the problem of maximal effective bulk modulus of elastic composites made from two linear elastic material and void, and the dual minimum problem.

  13. Pulse width modulated push-pull driven parallel resonant converter with active free-wheel

    DOE Patents [OSTI]

    Reass, William A.; Schrank, Louis

    2004-06-22T23:59:59.000Z

    An apparatus and method for high frequency alternating power generation to control kilowatts of supplied power in microseconds. The present invention includes a means for energy storage, push-pull switching means, control electronics, transformer means, resonant circuitry and means for excess energy recovery, all in electrical communication. A push-pull circuit works synchronously with a force commutated free-wheel transistor to provide current pulses to a transformer. A change in the conduction angle of the push-pull circuit changes the amount of energy coupled into the transformer's secondary oscillating circuit, thereby altering the induced secondary resonating voltage. At the end of each pulse, the force commutated free-wheel transistor causes residual excess energy in the primary circuit to be transmitted back to the storage capacitor for later use.

  14. In-line drivetrain and four wheel drive work machine using same

    DOE Patents [OSTI]

    Hoff, Brian (East Peoria, IL)

    2008-08-05T23:59:59.000Z

    A four wheel drive articulated mine loader is powered by a fuel cell and propelled by a single electric motor. The drivetrain has the first axle, second axle, and motor arranged in series on the work machine chassis. Torque is carried from the electric motor to the back differential via a pinion meshed with the ring gear of the back differential. A second pinion oriented in an opposite direction away from the ring gear is coupled to a drive shaft to transfer torque from the ring gear to the differential of the front axle. Thus, the ring gear of the back differential acts both to receive torque from the motor and to transfer torque to the forward axle. The in-line drive configuration includes a single electric motor and a single reduction gear to power the four wheel drive mine loader.

  15. Einstein-Podolsky-Rosen steering provides the advantage in entanglement-assisted subchannel discrimination with one-way measurements

    E-Print Network [OSTI]

    Watrous, John

    Einstein-Podolsky-Rosen steering provides the advantage in entanglement-assisted subchannel-based quantum effect that embodies the "spooky action at a dis- tance" disliked by Einstein and scrutinized by Einstein, Podolsky, and Rosen. Here we provide a necessary and sufficient characterization of steering

  16. Metabolic and genetic regulation in adipose tissue of Angus and Wagyu steers raised to U.S. and Japanese endpoints

    E-Print Network [OSTI]

    Chung, Ki Yong

    2006-08-16T23:59:59.000Z

    .m. lipid concentration. Subcutaneous adipose tissue concentrations of oleic (18:1n-9) was greater in Wagyu steers than in Angus steers (P = 0.05). All monounsaturated fatty acids (MUFA) increased between the U.S. and Japanese endpoint, whereas slip points...

  17. Alfalfa leaf meal in finishing steer diets. Quarterly report, July 1, 1997--September 30, 1997

    SciTech Connect (OSTI)

    Zehnder, C.M.; DiCostanzo, A.; Smith, L.B.; Brown, D.B.; Hall, J.M.

    1997-10-30T23:59:59.000Z

    Ninety-six medium frame, Angus and Angus cross steer calves (average initial weight 540 lb.) were allotted to a heavy or light weight block and then randomly assigned to one of four dietary treatments for a 167 or 189-day finishing phase, respectively. Treatments were control (supplemental soybean meal), alfalfa leaf meal (ALM) providing 33%, 66%, 100% of supplemental protein. Finishing diets were formulated to contain .61 Mcal NE{sub g}/lb dry matter, 12.5% crude protein, .6 % Ca and .3 % P. There were no significant (P >.05) effects of dietary treatments on daily gain or dry matter required /lb of gain. Steers fed 100 % ALM consumed more (P <.05) dry matter than steers fed either of the other three treatments. Dry matter consumption increased linearly (P >.05) with increasing ALM. There was no significant (P >.05) dietary treatment effect on marbling, KPH %, yield grade, quality grade, or liver abscesses. There was an apparent trend in reduced liver abscess incidence in steers fed 100 % ALM. Steers fed 66 % ALM had significantly (P <.05) greater backfat measurements, backfat also had a cubic effect (P <.05). Hot carcass weight had a quadratic relation (P <.05) with level of ALM. Substituting alfalfa leaf meal for soybean meal in diets of finishing steers increased DM intake, but this increase was accompanied by an increase in gain which resulted in similar feed efficiency. There may be an advantage in blending ALM and soybean meal as feed efficiency was improved when cattle were fed the blend. Also, feeding ALM may result in lower incidence of liver abscess.

  18. Volume 177, number 2 CHEMICAL PHYSICS LETTERS 15 February 1991 Cu titration of tilted CO on a MO( 110) surface

    E-Print Network [OSTI]

    Goodman, Wayne

    to the surface normal. Upon subsequent deposition of = 0.9 ML Cu at 95 Kfollowed by heating, infrared, in a weakening of the C-O bond [ l-41. The tilted CO can either dissociate into atomic C and 0 upon heating to z) surface. In this Letter, we present the results of studies on tilted CO on MO( 110) using infrared

  19. PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan1

    E-Print Network [OSTI]

    PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan1 , Ilya Tsvankin2 , Mike Batzle3 , Kasper van Wijk4 , and Matthew Haney5 ABSTRACT Mode-converted PS-waves can- and PS- waves can be inverted for the parameters of a horizontal TI layer with a tilted symmetry axis

  20. Tilted Micro Air Jet for Flow Control Julien Malapert*, Rda Yahiaoui, Rabah Zeggari and Jean-Franois Manceau

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Tilted Micro Air Jet for Flow Control Julien Malapert*, Réda Yahiaoui°, Rabah Zeggari and Jean: In this paper, we present an interesting method to microfabricate a tilted micro air jet generator. We used a double side etching. For aircraft and cars, micro air jets will take an important place for fluid control

  1. First Flight Tests for a Quadrotor UAV with Tilting Propellers Markus Ryll, Heinrich H. Bulthoff, and Paolo Robuffo Giordano

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ]. For these latter platforms, only the Cartesian position and yaw angle of their body frame w.r.t. an inertial frame directions. As quadrotor UAVs are being more and more exploited as autonomous flying service robots [3], [4: ducted-fan designs [5], tilt-wing mechanisms [6], [7], or tilt-rotor actuations [8], [9]. Along similar

  2. Integrated Planning and Image-Guided Control for Planar Needle Steering Kyle B. Reed, Vinutha Kallem, Ron Alterovitz, Ken Goldberg, Allison M. Okamura, Noah J. Cowan

    E-Print Network [OSTI]

    Alterovitz, Ron

    Integrated Planning and Image-Guided Control for Planar Needle Steering Kyle B. Reed, Vinutha kinematic nonholonomic model of bevel- tip needle steering. We use slighly different needles here that have steering work. By integrating planning, control, and torsion compensation, we demonstrate both accurate

  3. Friction in (im-)miscible polymer brush systems and the role of transverse polymer-tilting

    E-Print Network [OSTI]

    Mueser, Martin

    Friction in (im-)miscible polymer brush systems and the role of transverse polymer-tilting Sissi de preferred solvent, leading to low friction and low wear rates. Here, we demonstrate, using molecular systems also show smaller friction than miscible systems, although the friction reduction is less than

  4. TILTED LAYER-BASED MODELING FOR ENHANCED LIGHT-FIELD PROCESSING AND IMAGE BASED RENDERING

    E-Print Network [OSTI]

    Dragotti, Pier Luigi

    TILTED LAYER-BASED MODELING FOR ENHANCED LIGHT-FIELD PROCESSING AND IMAGE BASED RENDERING James, UK {j.pearson09, marcovs, mike.brookes, p.dragotti}@imperial.ac.uk ABSTRACT Image based rendering- torealistic results. However for successful rendering, geometric pri- ors about the structure of the scene

  5. Atomistic simulations of structures and mechanical properties of polycrystalline diamond: Symmetrical S001< tilt grain boundaries

    E-Print Network [OSTI]

    Brenner, Donald W.

    Atomistic simulations of structures and mechanical properties of polycrystalline diamond for diamond to deposit as a polycrystalline film with a high density of grain boundaries and related defects structures and energies of symmetrical 001 tilt grain boundaries GB's in diamond have been calculated over

  6. Tilt Aftereffects in a Self-Organizing Model of the Primary Visual Cortex

    E-Print Network [OSTI]

    2000-01-01T23:59:59.000Z

    RF-LISSOM, a self-organizing model of laterally connected orientation maps in the primary visual cortex, was used to study the psychological phenomenon known as the tilt aftereffect. The same self-organizing processes that are responsible for the long-term development of the map are shown to result in tilt aftereffects over short time scales in the adult. The model permits simultaneous observation of large numbers of neurons and connections, making it possible to relate high-level phenomena to low-level events, which is difficult to do experimentally. The results give detailed computational support for the long-standing conjecture that the direct tilt aftereffect arises from adaptive lateral interactions between feature detectors. They also make a new prediction that the indirect effect results from the normalization of synaptic efficacies during this process. The model thus provides a unified computational explanation of self-organization and both the direct and indirect tilt aftereffect in the primary visual cortex.

  7. Tilting mirror strips in a linear Fresnel reector Gang Xiao (University of Nice, France)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Tilting mirror strips in a linear Fresnel reector Gang Xiao (University of Nice, France) February 29, 2012 Abstract When a linear Fresnel reector solar concentrator is installed in a site with high of the linear Fresnel reector. Technical restrictions and diculties of this method are also discussed

  8. Evidence of a tilted columnar structure for mesomorphic phases of benzene-hexa-n-alkanoates

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1285 Evidence of a tilted columnar structure for mesomorphic phases of benzene-hexa-n-alkanoates F. 2014 Optical observations on the mesomorphs of benzene-hexa-n-alkanoates, and their admixtures with benzene, show that the planes of these discotic molecules are not perpendicular to the columns in which

  9. Federal ESPC Steering Committee Working Group Charter ESPC Data Working Group (WG)

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Federal ESPC Steering Committee Working Group Charter Name ESPC Data Working Group (WG) Problem information on their ESPC projects, differing reporting requirements and definitions of terms have made underscored the need to make ESPC-related data more accurate and complete, so that it can be used more

  10. On-chip silicon optical phased array for two-dimensional beam steering

    E-Print Network [OSTI]

    Chen, Ray

    and thermo-optic phase shifting with a switching power of P 20 mW per channel. Using a silicon waveguide-channel un- equally spaced OPA [3]. However, for many applications two-dimensional (2D) steering, rib waveguides are needed for single-mode operation, thereby adding additional pat- terning steps

  11. Meeting of the CCSM Scientific Steering Committee Eldorado Hotel, Santa Fe, New Mexico

    E-Print Network [OSTI]

    .) Process-oriented Modeling of the Physical Climate System - Significant biases in CCSM3 controls (BillMeeting of the CCSM Scientific Steering Committee Eldorado Hotel, Santa Fe, New Mexico Anasazi) - Parameterization methodologies (Leo Donner/Steve Klein) - Coupled Chemistry/Climate Modeling - WACCM (Byron Boville

  12. The forewing tegulae: their significance in steering manoeuvres and free flight in Locusta

    E-Print Network [OSTI]

    Robertson, Meldrum

    system has long been an important model for studying central nervous system control of behav- iourThe forewing tegulae: their significance in steering manoeuvres and free flight in Locusta of Locusta migratoria is widely used to investigate the principles of sensory­motor control. The four tegulae

  13. Steering Bose-Einstein Condensates despite Time Symmetry Dario Poletti,1

    E-Print Network [OSTI]

    Li, Baowen

    Steering Bose-Einstein Condensates despite Time Symmetry Dario Poletti,1 Giuliano Benenti,2 with a three-mode model. These three-mode model results corroborate well with a many- body study over a time [6­10] and shows the importance of interaction in the coherent control of quantum tunneling between

  14. Path tracking control of agricultural tractors with compensation for steering dynamics

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    Path tracking control of agricultural tractors with compensation for steering dynamics R. Eaton, H for path tracking control due to their generic and more simplistic nature when compared to dynamic models. However, control based solely on the kinematic model rarely takes into consideration any of the dynamics

  15. Effects of source and level of zinc on feedlot performance and carcass characteristics in steers

    E-Print Network [OSTI]

    Nunnery, Greg Alan

    1998-01-01T23:59:59.000Z

    , 95, 215, or 445 mg/kg) from Zn methionine (ZnMet) or ZnSO4 in a 2 x 5 factorial arrangement of treatments. Total dietary Zn was 30, 60, 120, 240 and 480 mg/kg. Within treatment groups, steers were assigned to one of two kill groups (kill group I = d...

  16. Sensor-Actuator Based Smart Yoke for a Rack and Pinion Steering System

    E-Print Network [OSTI]

    Saha, Subir Kumar

    the noise when the vehicle running on a bumpy road, and also may turn undesirably due to road disturbances a signal for the DC servo motor, that rotates the plunger causing the change in spring loading. The Lab, etc. The steering system is also subjected to continuous vibrations. So, any backlash will lead

  17. Regional Interagency Steering GIS Sub-Committee for FEMA's Region II Caribbean Area Division

    E-Print Network [OSTI]

    Gilbes, Fernando

    Regional Interagency Steering GIS Sub-Committee for FEMA's Region II Caribbean Area Division Jimmy RodrĂ­guez-Zamora Caribbean Area Division, San Juan, Puerto Rico 00918 Department of Homeland Security also. This effort is being carried out at the Caribbean Area Division as New York and New Jersey

  18. Exploring the free-energy landscapes of biological systems with steered molecular dynamics

    E-Print Network [OSTI]

    Chen, Liao Y.

    1 Exploring the free-energy landscapes of biological systems with steered molecular dynamics fluctuation-dissipation-theorem (BD -FDT) to accurately compute the free-energy profiles for several compute the free-energy profiles for all the afore-listed systems that represent various important aspects

  19. Investigating a Back Door Mechanism of Actin Phosphate Release by Steered Molecular Dynamics

    E-Print Network [OSTI]

    Wriggers, Willy

    Investigating a Back Door Mechanism of Actin Phosphate Release by Steered Molecular Dynamics Willy from actin. Arg177 remains attached to Pi along the putative back door pathway, suggesting a shuttle the subject of intense research (reviewed in Carlier6), but the basic structural mechanism of the chemi- cal

  20. FBE-IIPrequirements.doc 1 To: PIER Students and Steering Committee

    E-Print Network [OSTI]

    FBE-IIPrequirements.doc 1 To: PIER Students and Steering Committee From: David Klahr and Sharon-Based Experience (FBE) and Integrative Interdisciplinary Project (IIP), yet clear flexibility to tailor the experiences to the unique profiles of our diverse student population. The FBE and IIP are two

  1. Measurement incompatibility and Schrödinger-EPR steering in a class of probabilistic theories

    E-Print Network [OSTI]

    Manik Banik

    2015-02-20T23:59:59.000Z

    Steering is one of the most counter intuitive non classical features of bipartite quantum system, first noticed by Schr\\"{o}dinger at the early days of quantum theory. On the other hand measurement incompatibility is another non classical feature of quantum theory, initially pointed out by N. Bohr. Recently the authors of Refs. [\\href{http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.160402}{Phys. Rev. Lett. {\\bf 113}, 160402 (2014)}] and [\\href{http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.160403}{Phys. Rev. Lett. {\\bf 113}, 160403 (2014)}] have investigated the relation between these two distinct non classical features. They have shown that a set of measurements is not jointly measurable (i.e. incompatible) if and only if they can be used for demonstrating Schr\\"{o}dinger-Einstein-Podolsky-Rosen steering. The concept of steering has been generalized for more general abstract tensor product theories rather than just Hilbert space quantum mechanics. In this article we discuss that the notion of measurement incompatibility can be extendable for general probability theories. Further we show that the connection between steering and measurement incompatibility holds in a border class of tensor product theories rather than just quantum theory.

  2. Steering Acoustically Propelled Nanowire Motors toward Cells in a Biologically Compatible Environment Using Magnetic Fields

    E-Print Network [OSTI]

    Environment Using Magnetic Fields Suzanne Ahmed, Wei Wang, Lamar O. Mair,#, Robert D. Fraleigh, Sixing Li discovery of fuel-free propulsion of nanomotors using acoustic energy has provided a new avenue for using cells and tissues. We demonstrate in vitro magnetic steering of acoustically powered nanorod motors

  3. Adaptive Steering Control for Autonomous Lane Change Plamen Petrov and Fawzi Nashashibi, Member, IEEE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for autonomous lane change maneuver with respect to a stopped vehicle. First, we derive a dynamic model the roadway capacity and diminish air pollution by efficient use of fuel. Fully automated vehicle operation steering controller for an autonomous lane change maneuver with respect to a stopped vehicle. We consider

  4. Review of Regional Load and Resource Information A Report to Resource Adequacy Steering Committee

    E-Print Network [OSTI]

    of the information, it may also lead to further exploration of the data and the approach. This report summarizesReview of Regional Load and Resource Information A Report to Resource Adequacy Steering Committee the results of our review of the load and resource information embodied in the 2010 Resource Adequacy

  5. Influence of acetogenic versus propiogenic supplements on adipose tissue accretion in stocker steers grazing ryegrass pasture

    E-Print Network [OSTI]

    Bumpus, Emalee Kate

    2006-08-16T23:59:59.000Z

    Fifty-eight high grade Bonsmara steers were used to evaluate effects of high-fiber versus high-starch pasture supplements on subcutaneous (s.c.) and intramuscular (i.m.) adipose tissue accretion during growing and finishing phases. Cattle were...

  6. Crash Injury Prediction and Vehicle Damage Reporting by Paramedics: A Feasibility Study

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    of agreement for front airbag deployment, steering wheelPrediction by Paramedics type, airbag deployment, steeringThe investigator assessed airbag deployment by inspecting

  7. Improved wastewater treatment at Wheeling-Pittsburgh Steel Corporations`s Steubenville East Coke Plant

    SciTech Connect (OSTI)

    Goshe, A.J.; Nodianos, M.J. [Wheeling-Pittsburgh Steel Corp., Follansbee, WV (United States)

    1995-12-01T23:59:59.000Z

    Wheeling-Pittsburgh Steel Corporation recently improved its wastewater treatment at it`s by-products coke plant. This has led to greatly improved effluent quality. Excess ammonia liquor, along with wastewater from the light oil recovery plant, desulfurization facility, and coal pile runoff, must be treated prior to being discharged into the Ohio River. This is accomplished using a biological wastewater treatment plant to remove 99.99% of the organic contaminants and ammonia. Biologically treated, clarified wastewater is now polished in the newly constructed tertiary treatment plant.

  8. Sample survey of traditional water wheels and small water turbines in nepal: a preliminary report

    SciTech Connect (OSTI)

    Joshi, C.B.

    1981-01-01T23:59:59.000Z

    The main purposes of this survey were to study the technical, economical, and social aspects of water wheels and turbines; to assess the possibility of developing these modern and traditional technologies together or improving them separately; to assess the awareness of the local people of the need for improvement on their existing technologies; and to find out the possible role of RECAST for mutual cooperation. This survey is intended to provide planners financiers, researchers, and manufacturers with further information regarding better use of small hydro resources and locally available skills for development.

  9. An experimental investigation of a tilt rotor aircraft wake in ground effect

    E-Print Network [OSTI]

    Frey, Michael Louis

    1982-01-01T23:59:59.000Z

    were taken at several disk loadings and various model to ground plane distances. The data collected was used to evaluate the horizontal wake component's effect on people by re- lating the experimental velocity profiles to an equivalent uniform... Flow Measurement Equipment. Wake Velocity Versus Distance from Tilt Rotor Wake Velocity Versus Disk Loading Tuft Flow Visualization ? H=3D, 3, 000 RPM Tuft Flow Visualization ? H=2D, 9, 000 RPM Flow Direction Measurement Results ? H=1D 14 20 22...

  10. Measurement of rotordynamic coefficients for a high-speed flexure pivot tilting-pad bearing(load between pad) configuration

    E-Print Network [OSTI]

    Al-Ghasem, Adnan Mahmoud

    2005-08-29T23:59:59.000Z

    This thesis presents the dynamic and static forced performance of a flexure-pivot tilting-pad bearing load between pad (LBP) configuration for different rotor speeds and bearing unit loadings. The bearing has the following design parameters: 4 pads...

  11. Measured and Predicted Rotor-Pad Transfer Functions for a Rocker-Pivot Tilting-Pad Journal Bearing

    E-Print Network [OSTI]

    Wilkes, Jason Christopher

    2012-02-14T23:59:59.000Z

    Many researchers have compared predicted stiffness and damping coefficients for tilting-pad journal bearings (TPJBs) to measurements. Most have found that direct damping is consistently overpredicted. The thrust of this research is to explain...

  12. Effects of head-up tilt on mean arterial pressure, heart rate, and regional cardiac output distribution in aging rats 

    E-Print Network [OSTI]

    Ramsey, Michael Wiechmann

    2006-04-12T23:59:59.000Z

    Many senescent individuals demonstrate an inability to regulate mean arterial pressure (MAP) in response to standing or head-up tilt; however, whether this aging effect is the result of depressed cardiac function or an ...

  13. A novel millimeter-wave beam-steering technique using a dielectric-image-line-fed grating film

    E-Print Network [OSTI]

    Rodenbeck, Christopher Timothy

    2001-01-01T23:59:59.000Z

    This thesis introduces a novel, broadband, low-cost technique for beam steering at millimeter-wave frequencies using a moveable grating film fed by dielectric image line. An excellent radiation pattern is maintained over wide scan angles across...

  14. Red and blue tilted tensor spectrum from Gibbons-Hawking temperature

    E-Print Network [OSTI]

    Subhendra Mohanty; Akhilesh Nautiyal

    2015-01-09T23:59:59.000Z

    The scale invariant scalar and tensor perturbations, which are predicted from inflation, are eigenmodes in the conformal coordinates. The 'out' observer in the de Sitter space observes a thermal spectrum with a Gibbons-Hawking temperature $H/2\\pi$ of these 'Bunch-Davies' particles. The tensor power spectrum observed in experiments can have an imprint of the Gibbons-Hawking thermal distribution due to the mode mixing between 'in' state conformal coordinates and the coordinate frame of the observer. We find that the the Bunch-Davies modes appear as thermal modes to the asymptotic Minkowski observer in the future and the power spectrum of the gravitational waves is blue-tilted with a spectral index $n_T \\sim 1$ even in the standard slow-roll inflation. On the other hand if the coordinate frame of the observer is taken to be static coordinates, the tensor spectrum is red-tilted with $n_T\\sim -1$. A likelihood analysis shows and find the best fit values of the slow-roll parameters for both cases. We find that the blue-tilted tensor gives a better fit and reconciles the PLANCK upper bound on the tensor-to-scalar ratio, $r <0.11$ with BICEP2 measurement of $r=0.2$. This supports the idea of particle production due to the mode mixing between the initial Bunch-Davies vacuum modes and the asymptotic Minkowski vacuum of the post-inflation universe.

  15. Hybrid monitor for both beam position and tilt of pulsed high-current beams

    SciTech Connect (OSTI)

    Pang, J., E-mail: jpang-caep@foxmail.com; He, X.; Ma, C.; Zhao, L.; Li, Q.; Dai, Z. [Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900 (China)

    2014-09-15T23:59:59.000Z

    A Hybrid beam monitor, integrated with both azimuthal and axial B-dot probes, was designed for simultaneous measurement of both beam position and beam angle for pulsed high-current beams at the same location in beam pipe. The output signals of axial B-dot probes were found to be mixed with signals caused by transverse position deviation. In order to eliminate the unwanted signals, an elimination method was developed and its feasibility tested on a 50-? coaxial line test stand. By this method, a waveform, shape-like to that of input current and proportional to the tilt angle, was simulated and processed by following integration step to achieve the tilt angle. The tests showed that the measurement error of displacement and tilt angle less than 0.3 mm and 1.5 mrad, respectively. The latter error could be reduced with improved probes by reducing the inductance of the axial B-dot probe, but the improvement reached a limit due to some unknown systemic mechanism.

  16. An Analysis of Source Tilting and Sub-cell Opacity Sampling for IMC

    SciTech Connect (OSTI)

    Wollaeger, Ryan T. [Los Alamos National Laboratory; Urbatsch, Todd J. [Los Alamos National Laboratory; Wollaber, Allan B. [Los Alamos National Laboratory; Densmore, Jeffery D. [Los Alamos National Laboratory

    2012-08-02T23:59:59.000Z

    Implicit Monte Carlo (IMC) is a stochastic method for solving the radiative transfer equations for multiphysics application with the material in local thermodynamic equilibrium. The IMC method employs a fictitious scattering term that is computed from an implicit discretization of the material temperature equation. Unfortunately, the original histogram representation of the temperature and opacity with respect to the spatial domain leads to nonphysically fast propagation of radiation waves through optically thick material. In the past, heuristic source tilting schemes have been used to mitigate the numerical teleportation error of the radiation particles in IMC that cause this overly rapid radiation wave propagation. While improving the material temperature profile throughout the time duration, these tilting schemes alone do not generally alleviate the teleportation error to suitable levels. Another means of potentially reducing teleportation error in IMC is implementing continuous sub-cell opacities based on sub-cell temperature profiles. We present here an analysis of source tilting and continuous sub-cell opacity sampling applied to various discretizations of the temperature equation. Through this analysis, we demonstrate that applying both heuristics does not necessarily yield more accurate results if the discretization of the material equation is inconsistent with the Monte Carlo sub-cell transport.

  17. Growth, carcass and beef quality attributes of steers assigned to various forage utilization-grain feeding regimens

    E-Print Network [OSTI]

    Kelley, Stanley Frank

    1991-01-01T23:59:59.000Z

    GROWTH, CARCASS AND BEEF QUALITY ATTRIBUTES OF STEERS ASSIGNED TO VARIOUS FORAGE UTILIZATION-GRAIN FEEDING REGIMENS A Thesis by STANLEY FRANK KELLEY Submitted to the Office of Graduate Studies Texas ARM University In partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1991 Major Subject: Animal Science GROWTH, CARCASS AND QUALITY ATTRIBUTES OF STEERS ASSIGNED TO VARIOUS FORAGE UTILIZATION-GRAIN FEEDING REGIMENS A Thesis by STANLEY FRANK KELLEY Approved...

  18. The eating quality of bulls compared with steers and a study of methods for predicting chronological age of beef cattle

    E-Print Network [OSTI]

    Reagan, James Oliver

    1970-01-01T23:59:59.000Z

    THE EATING QUALITY OF BULLS COMPARED WITH STEERS AND A STUDY OF METHODS FOR PREDICTING CHRONOLOGICAL AGE OF BEEF CATTLE . A Thesis by JAMES 0. REAGAN Submitted to the Graduate College of Texas ASM University in partial fulfi. llment... to the requirements for the degree of MASTER OF SCIENCE January 1970 Major Subject: Animal Science (Meats) THE EATING QUALITY OF BULLS COMPARED WITH STEERS AND A STUDY OF METHODS FOR PREDICTING CHRONOLOGICAL AGE OF BEEF CATTLE. A Thests JAMES 0. REAGAN...

  19. 1 Copyright 2007 by ASME Proceedings of IMECE2007

    E-Print Network [OSTI]

    Krovi, Venkat

    wheels, the noise, vibration, and harshness (NVH) from the road wheel interaction can no longer propagate and Pinion Assembly Pack and Pinion Position Sensor Steering Force Feedback Motor Conventional Steer

  20. Slaughter and carcass characteristics of Santa Gertrudis steers produced by different management practices

    E-Print Network [OSTI]

    Reddish, Robert Lee

    1956-01-01T23:59:59.000Z

    T V v r- t?B ?. M ?'i?> SLAUGHTER AND CARCASS CHARACTERISTICS OF SANTA GERTRUDIS STEERS PRODUCED BY DIFFERENT MANAGEMENT PRACTICES A Dissertation By ROBERT LEE REDDISH"i Submitted to the Graduate School of the Agricultural and Mechanical... theexperimental cattle, Mr. Harold Franke and Mr* H*. V. Reyes for feeding and caring for the experimental cattle, and Dr. M. J* Garber and Mr. R* L . Smith for their help with the statistical analyses. The work of Dr* Sylvia Cover in collection...

  1. Adipocyte characteristics of calf- and yearling-fed cloned Brangus steers

    E-Print Network [OSTI]

    Brock, Amy Ann

    1995-01-01T23:59:59.000Z

    of Nutrition Faculty) December 1995 Major Subject: Nutrition ABSTRACT Adipocyte Characteristics of Calf- and Yearling-Fed Cloned Brangus Steers. (December 1995) Amy Ann Brock, B. S. , University of Arizona Chair of Advisory Committee: Dr. Stephen B... Wanda Howell and Ed Sheehan from the University of Arizona. Their dedication to teaching and knowledge was so impressive that students could not help but be enthusiastic about the subject matter that was being taught. I still hold the enthusiasm...

  2. Slaughter and carcass characteristics of Santa Gertrudis steers produced by different management practices 

    E-Print Network [OSTI]

    Reddish, Robert Lee

    1956-01-01T23:59:59.000Z

    T V v r- t?B ?. M ?'i?> SLAUGHTER AND CARCASS CHARACTERISTICS OF SANTA GERTRUDIS STEERS PRODUCED BY DIFFERENT MANAGEMENT PRACTICES A Dissertation By ROBERT LEE REDDISH"i Submitted to the Graduate School of the Agricultural and Mechanical... theexperimental cattle, Mr. Harold Franke and Mr* H*. V. Reyes for feeding and caring for the experimental cattle, and Dr. M. J* Garber and Mr. R* L . Smith for their help with the statistical analyses. The work of Dr* Sylvia Cover in collection...

  3. A microwave tomography system using a tunable mirror for beam steering

    SciTech Connect (OSTI)

    Tayebi, A. [Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824 (United States); Non-Destructive Evaluation Laboratory, Michigan State University, East Lansing, MI 48824 (United States); Department of Physic (United States); Tang, J. [Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824 (United States); Paladhi, P. Roy; Udpa, L.; Udpa, S. [Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824 (United States); Non-Destructive Evaluation Laboratory, Michigan State University, East Lansing, MI 48824 (United States)

    2014-02-18T23:59:59.000Z

    Microwave tomography is a fast-growing technique in the fields of NDE and medical industry. This paper presents a new microwave tomography system which reduces the complexities of conventional microwave imaging systems by utilizing a reconfigurable mirror, a tunable reflectarray antenna. In order to build a tunable reflectarray with beam steering capabilities, the unit cell characteristics should dynamically alter. Modelling and experimental results of a single unit cell are presented in this work.

  4. Research and Application on the Mechanical Characters of Rotary Steering Drilling Tool

    E-Print Network [OSTI]

    Jiang, Shan

    2014-12-10T23:59:59.000Z

    AND CHARACTERISTICS OF ROTARY STEERABLE DRILLING TOOL SYSTEMS (RSS) TECHNOLOGY ................................................. 8 2.1 Main Features of Baker Hughes AutoTrak Rotary Steering Drilling Tool ..... 10 2.2 Main Features of Schlumberger PowerDriver RSS.... Baker Hughes AutoTrak, Schlumberger PowerDrive and Halliburton Geopilot are the most typical representatives of technical progress [1] [2]. The RSS has entered a large-scale industrial application stage, greatly advancing the progress of drilling...

  5. Open-Loop Test and Validation of a New Two-Wheeled Vehicle Riding L. Nehaoua, S. Hima, H. Arioui, N. Seguy and S. Espie

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    interaction and develop a rider control model [6]. The mechanical platform is a serie structure with five DOF, pitch and handlebar steering) actuated by seven actuators. After 1990, Honda launches out a second prototype of simple simulators with three DOF (roll, pitch and steering), to allow the safe trainee

  6. Optimal steering of a linear stochastic system to a final probability distribution

    E-Print Network [OSTI]

    Yongxin Chen; Tryphon Georgiou; Michele Pavon

    2014-08-10T23:59:59.000Z

    We consider the problem to steer a linear dynamical system with full state observation from an initial gaussian distribution in state-space to a final one with minimum energy control. The system is stochastically driven through the control channels; an example for such a system is that of an inertial particle experiencing random "white noise" forcing. We show that a target probability distribution can always be achieved in finite time. The optimal control is given in state-feedback form and is computed explicitely by solving a pair of differential Lyapunov equations that are coupled through their boundary values. This result, given its attractive algorithmic nature, appears to have several potential applications such as to active control of nanomechanical systems and molecular cooling. The problem to steer a diffusion process between end-point marginals has a long history (Schr\\"odinger bridges) and therefore, the present case of steering a linear stochastic system constitutes a Schr\\"odinger bridge for possibly degenerate diffusions. Our results, however, provide the first implementable form of the optimal control for a general Gauss-Markov process. Illustrative examples of the optimal evolution and control for inertial particles and a stochastic oscillator are provided. A final result establishes directly the property of Schr\\"{o}dinger bridges as the most likely random evolution between given marginals to the present context of linear stochastic systems.

  7. Optimal steering of a linear stochastic system to a final probability distribution, part II

    E-Print Network [OSTI]

    Yongxin Chen; Tryphon Georgiou; Michele Pavon

    2014-10-13T23:59:59.000Z

    We consider the problem of minimum energy steering of a linear stochastic system to a final prescribed distribution over a finite horizon and to maintain a stationary distribution over an infinite horizon. We present sufficient conditions for optimality in terms of a system of dynamically coupled Riccati equations in the finite horizon case and algebraic in the stationary case. We then address the question of feasibility for both problems. For the finite-horizon case, provided the system is controllable, we prove that without any restriction on the directionality of the stochastic disturbance it is always possible to steer the state to any arbitrary Gaussian distribution over any specified finite time-interval. For the stationary infinite horizon case, it is not always possible to maintain the state at an arbitrary Gaussian distribution through constant state-feedback. It is shown that covariances of admissible stationary Gaussian distributions are characterized by a certain Lyapunov-like equation. We finally present an alternative to solving the system of coupled Riccati equations, by expressing the optimal controls in the form of solutions to (convex) semi-definite programs for both cases. We conclude with an example to steer the state covariance of the distribution of inertial particles to an admissible stationary Gaussian distribution over a finite interval, to be maintained at that stationary distribution thereafter by constant-gain state-feedback control.

  8. Ruminal nitrogen metabolism in steers as affected by feed intake and dietary urea concentration

    SciTech Connect (OSTI)

    Firkins, J.L.; Berger, L.L.; Merchen, N.R.; Fahey, G.C. Jr.; Mulvaney, R.L.

    1987-11-01T23:59:59.000Z

    Four multiple-cannulated steers (340 kg) were used in a 4 x 4 Latin square design with a 2 x 2 factorial arrangement of treatments. Steers were fed a diet of 50% ground hay and 50% concentrate at two intakes (1.4 and 2.1% of BW), with urea and /sup 15/N-enriched ammonium sulfate infused continuously into the rumen at .4 or 1.2% of diet DM. Ratios of purines and diaminopimelic acid-N to N in fluid-associated and particulate-associated bacteria and in protozoa were similar among treatments but were lower for protozoa than for bacteria. Diaminopimelic acid-N:N was higher for fluid-associated vs. particulate-associated bacteria. Enrichment of /sup 15/N was similar between bacteria among treatments and was 30% lower for protozoa. Turnover rates of /sup 15/N in bacteria, NH/sub 3/N, and non-HN/sub 3/N pools were faster for steers infused with 1.2 than those infused with .4% urea, indicating less efficient usage of ammonia with higher urea. A method is described to estimate the proportion of duodenal nitrogen comprising bacterial and protozoal nitrogen.

  9. Washboard Road: The Dynamics of Granular Ripples Formed by Rolling Wheels Nicolas Taberlet,1,2,* Stephen W. Morris,3

    E-Print Network [OSTI]

    McElwaine, Jim

    experiments on rippled granular surfaces formed under rolling wheels. Ripples appear above a critical speed surface under tangential stress is reminiscent of other sorts of wind- and water-driven ripples [2 rolled freely on the sand bed as the table rotated at a constant speed. No torque was applied

  10. A Dual Model-Free Control of Underactuated Mechanical Systems, Application to The Inertia Wheel Inverted Pendulum

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    regulation. The main contribution of this paper is to design a new control scheme based on model-free controlA Dual Model-Free Control of Underactuated Mechanical Systems, Application to The Inertia Wheel method allowing recent model-free control technique to deal with underactuated mechanical systems

  11. Abstract--This video submission presents the experimental validation and testing of a leg-wheel hybrid mobile robot

    E-Print Network [OSTI]

    Lin, Pei-Chun

    is installed inside the spoke and its power and control signal are passed through a connector pair, which have separate mechanisms of wheels and legs, this robot is implemented with a transformation mechanism inventions specialized in rolling on the flat ground, whose excellent performance of power efficiency

  12. Biomechanical and psychophysical evaluation of using a two-wheel cart to transport loads over a curb

    E-Print Network [OSTI]

    King, Rebecca Lynn

    1997-01-01T23:59:59.000Z

    The purpose of this study was to evaluate the use of a standard two-wheel cart to transport loads over a curb. This was done through biomechanical (static and dynamic) and psychophysical evaluations of industrial males. The biomechanical study (n=4...

  13. Ferroelectric and octahedral tilt twin disorder and the lead-free piezoelectric, sodium potassium niobate system

    SciTech Connect (OSTI)

    Schiemer, Jason [Research School of Chemistry, The Australian National University, Canberra, ACT 0200 (Australia)] [Research School of Chemistry, The Australian National University, Canberra, ACT 0200 (Australia); Withers, Ray L., E-mail: withers@rsc.anu.edu.au [Research School of Chemistry, The Australian National University, Canberra, ACT 0200 (Australia); Liu, Yun; Yi, Zhiguo [Research School of Chemistry, The Australian National University, Canberra, ACT 0200 (Australia)] [Research School of Chemistry, The Australian National University, Canberra, ACT 0200 (Australia)

    2012-11-15T23:59:59.000Z

    Using electron diffraction, trends in the local structural behaviour of the K{sub x}Na{sub 1-x}NbO{sub 3} (KNN x) 'solid solution' system are investigated and interpreted using an order/disorder based theoretical framework. At room temperature, electron diffraction shows a single plane of transverse polarised, diffuse intensity perpendicular to [0 1 0]{sub p} Low-Asterisk (p for parent sub-structure) across the entire phase diagram, indicative of ferroelectric disorder along the [0 1 0]{sub p} direction co-existing with long range ferroelectric order along the orthogonal [1 0 0]{sub p} and [0 0 1]{sub p} directions. An additional characteristic pattern of diffuse scattering is also observed, involving rods of diffuse intensity running along the [1 0 0]{sub p}* and [0 0 1]{sub p}* directions of the perovskite sub-structure and indicative of octahedral tilt disorder about the [1 0 0]{sub p} and [0 0 1]{sub p} axes co-existing with long range ordered octahedral tilting around the [0 1 0]{sub p} direction. A possible crystal chemical explanation for the existence of this latter octahedral tilt disorder is explored through bond valence sum calculations. The possible influence of both types of disorder on the previously refined, room temperature space group/s and average crystal structure/s is examined. - Graphical abstract: [-3,0.-1]p zone axis EDP of K{sub 0.46}Na{sub 0.54}NbO{sub 3} indexed according to both the relevant Pcm21 space groups (no subscripts) and the parent perovskite subcell (denoted by a subscript p). Highlights: Black-Right-Pointing-Pointer Characterises ferroelectric and octahedral tilt disorder in the KNN solid solution. Black-Right-Pointing-Pointer Discusses the possible driving forces for this disorder. Black-Right-Pointing-Pointer Discusses the implications of this disorder for physical properties. Black-Right-Pointing-Pointer Discusses the effects of this disorder on powder diffraction data.

  14. Dual-frequency terahertz emission from splitting filaments induced by lens tilting in air

    SciTech Connect (OSTI)

    Zhang, Zhelin; Chen, Yanping, E-mail: yanping.chen@sjtu.edu.cn; Yang, Liu; Yuan, Xiaohui; Liu, Feng; Chen, Min; Xu, Jianqiu; Zhang, Jie [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Sheng, Zhengming [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG (United Kingdom)

    2014-09-08T23:59:59.000Z

    Dual-frequency terahertz radiation from air-plasma filaments produced with two-color lasers in air has been demonstrated experimentally. When a focusing lens is tilted for a few degrees, it is shown that the laser filament evolves from a single one to two sub-filaments. Two independent terahertz sources emitted from the sub-filaments with different frequencies and polarizations are identified, where the frequency of terahertz waves from the trailing sub-filament is higher than that from the leading sub-filament.

  15. Accurate measurement of relative tilt and azimuth angles in electron tomography: A comparison of fiducial marker method with electron diffraction

    SciTech Connect (OSTI)

    Hayashida, Misa [National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565 (Japan); Malac, Marek; Egerton, Ray F. [National Institute for Nanotechnology, 11421 Saskatchewan Drive, Edmonton T6G 2M9 (Canada); Department of Physics, University of Alberta, Edmonton T6H 2E1 (Canada); Bergen, Michael; Li, Peng [National Institute for Nanotechnology, 11421 Saskatchewan Drive, Edmonton T6G 2M9 (Canada)

    2014-08-15T23:59:59.000Z

    Electron tomography is a method whereby a three-dimensional reconstruction of a nanoscale object is obtained from a series of projected images measured in a transmission electron microscope. We developed an electron-diffraction method to measure the tilt and azimuth angles, with Kikuchi lines used to align a series of diffraction patterns obtained with each image of the tilt series. Since it is based on electron diffraction, the method is not affected by sample drift and is not sensitive to sample thickness, whereas tilt angle measurement and alignment using fiducial-marker methods are affected by both sample drift and thickness. The accuracy of the diffraction method benefits reconstructions with a large number of voxels, where both high spatial resolution and a large field of view are desired. The diffraction method allows both the tilt and azimuth angle to be measured, while fiducial marker methods typically treat the tilt and azimuth angle as an unknown parameter. The diffraction method can be also used to estimate the accuracy of the fiducial marker method, and the sample-stage accuracy. A nano-dot fiducial marker measurement differs from a diffraction measurement by no more than ±1°.

  16. Biofuels development in Maine: Using trees to oil the wheels of sustainability -Maine news, sports, obituaries, weather -Bangor Daily News http://bangordailynews.com/2013/03/12/opinion/biofuels-development-in-maine-using-trees-to-oil-the-wheels-of-sustain

    E-Print Network [OSTI]

    Thomas, Andrew

    Biofuels development in Maine: Using trees to oil the wheels of sustainability - Maine news, sports, obituaries, weather - Bangor Daily News http://bangordailynews.com/2013/03/12/opinion/biofuels-development-in-maine-using-trees-to-oil-the-wheels-of-sustainability/print/[3/13/2013 1:54:43 PM] Biofuels development

  17. Early structure formation from primordial density fluctuations with a blue-tilted power spectrum

    E-Print Network [OSTI]

    Hirano, Shingo; Yoshida, Naoki; Spergel, David; Yorke, Harold W

    2015-01-01T23:59:59.000Z

    While observations of large-scale structure and the cosmic microwave background (CMB) provide strong constraints on the amplitude of the primordial power spectrum (PPS) on scales larger than 10 Mpc, the amplitude of the power spectrum on sub-galactic length scales is much more poorly constrained. We study early structure formation in a cosmological model with a blue-tilted PPS. We assume that the standard scale-invariant PPS is modified at small length scales as $P(k) \\sim k^{m_{\\rm s}}$ with $m_{\\rm s} > 1$. We run a series of cosmological hydrodynamic simulations to examine the dependence of the formation epoch and the characteristic mass of primordial stars on the tilt of the PPS. In models with $m_{\\rm s} > 1$, star-forming gas clouds are formed at $z > 100$, when formation of hydrogen molecules is inefficient because the intense CMB radiation destroys chemical intermediates. Without efficient coolant, the gas clouds gravitationally contract while keeping a high temperature. The protostars formed in such ...

  18. The Tilt of the Fundamental Plane: Three-quarters Structural Nonhomology, One-quarter Stellar Population

    E-Print Network [OSTI]

    I. Trujillo; A. Burkert; Eric. F. Bell

    2004-01-09T23:59:59.000Z

    The variation of the mass-to-light ratios M/L of early type galaxies as function of their luminosities L is investigated. It is shown that the tilt beta=0.27 (in the B--band) of the fundamental plane relation M/L ~ L^{beta} can be understood as a combination of two effects: about one-quarter (i.e. dbeta =0.07) is a result of systematic variations of the stellar population properties with increasing luminosity. The remaining three-quarters (i.e. dbeta =0.2) can be completely attributed to nonhomology effects that lead to a systematic change of the surface brightness profiles with increasing luminosity. Consequently, the observed tilt in the K-band (beta=0.17) where stellar population effects are negligible, is explained by nonhomology effects alone. After correcting for nonhomology, the mean value of the mass-to-light ratio of elliptical galaxies (M/L_B) is 7.1+-2.8 (1 sigma scatter).

  19. Mechanical and charge transport properties of alkanethiol self-assembled monolayers on Au (111) surface: The Role of Molecular Tilt

    SciTech Connect (OSTI)

    Mulleregan, Alice; Qi, Yabing; Ratera, Imma; Park, Jeong Y.; Ashby, Paul D.; Quek, Su Ying; Neaton, J. B.; Salmeron, Miquel

    2007-11-12T23:59:59.000Z

    The relationship between charge transport and mechanical properties of alkanethiol self-assembled monolayers (SAM) on Au(111) films has been investigated using an atomic force microscope with a conductive tip. Molecular tilts induced by the pressure applied by the tip cause stepwise increases in film conductivity. A decay constant {beta} = 0.57 {+-} 0.03 {angstrom}{sup -1} was found for the current passing through the film as a function of tip-substrate separation due to this molecular tilt. This is significantly smaller than the value of {approx} 1 {angstrom}{sup -1} found when the separation is changed by changing the length of the alkanethiol molecules. Calculations indicate that for isolated dithiol molecules S-bonded to hollow sites, the junction conductance does not vary significantly as a function of molecular tilt. The impact of S-Au bonding on SAM conductance is discussed.

  20. Primary beam steering due to field leakage from superconducting SHMS magnets

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

    Moore, M.H.; Waidyawansa, B.P.; Covrig, S.; Carlini, R.; Benesch, J.

    2014-11-01T23:59:59.000Z

    Simulations of the magnetic fields from the Super High Momentum Spectrometer in Hall C at Thomas Jefferson National Accelerator Facility show significant field leakage into the region of the primary beam line between the target and the beam dump. Without mitigation, these remnant fields will steer the unscattered beam enough to limit beam operations at small scattering angles. Presented here are magnetic field simulations of the spectrometer magnets and a solution using optimal placement of a minimal amount of shielding iron around the beam line.

  1. A model for determining body composition of steers fed in a variety of nutritional management programs

    E-Print Network [OSTI]

    Regmund, John William

    1986-01-01T23:59:59.000Z

    to a period of time instead of a given point in time. A steer's mean weight was calculated by adding the starting and ending EBW and dividing by two. The growing phase OPG model was as follows: DPG (kg)= . 7414 ? . 1157(lnMWT) + . 0766(lnDEBG) + 2... across levels of the second factor. Figure 2 is a representation of the effects of OPG interacting with IC across rates of OEBG. Byers (1980c) and Lemieux et al. (1984) demonstrated that anabolic implants repartition energy from fat storage to lean...

  2. Development of fast steering mirror control system for plasma heating and diagnostics

    SciTech Connect (OSTI)

    Okada, K., E-mail: okada.kohta@LHD.nifs.ac.jp; Kubo, S.; Shimozuma, T.; Yoshimura, Y.; Igami, H.; Takahashi, H.; Tanaka, K.; Kobayashi, S.; Ito, S.; Mizuno, Y.; Ogasawara, S. [National Institute for Fusion Science, Toki, Gifu 509-5292 (Japan); Nishiura, M. [Department of Advanced Energy, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561 (Japan)

    2014-11-15T23:59:59.000Z

    A control system for a fast steering mirror has been newly developed for the electron cyclotron heating (ECH) launchers in the large helical device. This system enables two-dimensional scan during a plasma discharge and provides a simple feedback control function. A board mounted with a field programmable gate array chip has been designed to realize feedback control of the ECH beam position to maintain higher electron temperature by ECH. The heating position is determined by a plasma diagnostic signal related to the electron temperature such as electron cyclotron emission and Thomson scattering.

  3. Primary Beam Steering Due to Field Leakage from Superconducting SHMS Magnets

    E-Print Network [OSTI]

    Michael H. Moore; Buddhini P. Waidyawansa; Silviu Covrig; Roger Carlini; Jay Benesch

    2014-08-26T23:59:59.000Z

    Simulations of the magnetic fields from the Super High Momentum Spectrometer in Hall C at Thomas Jefferson National Accelerator Facility show significant field leakage into the region of the primary beam line between the target and the beam dump. Without mitigation, these remnant fields will steer the unscattered beam enough to limit beam operations at small scattering angles. Presented here are magnetic field simulations of the spectrometer magnets and a solution using optimal placement of a minimal amount of shielding iron around the beam line.

  4. Response of Steers to Implantation of Diethylstilbestrol During Suckling, Wintering and Finishing Periods.

    E-Print Network [OSTI]

    Melton, A. A.; Riggs, J. K.

    1965-01-01T23:59:59.000Z

    weight, 3/19/62 655 66 1 69 1 710 Daily gain 0.99a 0.95a 1.31b 1.27b October 22, 1962 to February 19, 1963; 120 Days Number of steers 20 20 20 20 Initial weight, 10/22/62 514 504 514 499 Weight 11 /29/62 566 552 567 555 Final weight, 2/19/63 788 764... years 63.8 1 63.95 63.82 63.64 63.54 64.04 64.5 1 63.98 fiinlr~ brink, percent r\

  5. High-power, low-lateral divergence broad area quantum cascade lasers with a tilted front facet

    SciTech Connect (OSTI)

    Ahn, Sangil, E-mail: sangil.ahn@tuwien.ac.at; Schwarzer, Clemens; Zederbauer, Tobias; MacFarland, Donald C.; Detz, Hermann; Andrews, Aaron M.; Schrenk, Werner; Strasser, Gottfried [Institute for Solid State Electronics, Vienna University of Technology, 1040 Vienna (Austria)

    2014-02-03T23:59:59.000Z

    We introduce a simple technique to improve the beam quality of broad area quantum cascade lasers. Moderately tilted front facets of the laser provide suppression of higher order lateral waveguide modes. A device with a width of 60??m and a front facet angle of 17° shows a nearly diffraction limited beam profile. In addition, the peak output power and the slope efficiency of the device are increased since most of the light inside the cavity is emitted through the tilted front facet by an asymmetric light intensity distribution along the cavity.

  6. Steering in computational science: mesoscale modelling and J. CHIN{, J. HARTING{, S. JHA{, P. V. COVENEY{, A. R. PORTER{ and S. M. PICKLES{{

    E-Print Network [OSTI]

    Harting, Jens

    Steering in computational science: mesoscale modelling and simulation J. CHIN{, J. HARTING{, S. JHA steering for high performance computing applications. Lattice-Boltzmann mesoscale fluid simulations, there is currently considerable interest in mesoscale models. These models coarse grain most of the atomic

  7. ITS Technologies in Military Wheeled Tactical Vehicles: Status Quo and the Future

    SciTech Connect (OSTI)

    Knee, H.E.

    2001-07-02T23:59:59.000Z

    The U.S. Army operates and maintains the largest trucking fleet in the United States. Its fleet consists of over 246,000 trucks, and it is responsible for buying and developing trucks for all branches of the armed forces. The Army's tactical wheeled vehicle fleet is the logistical backbone of the Army, and annually, the fleet logs about 823 million miles. The fleet consists of a number of types of vehicles. They include eight different families of trucks from the High Mobility Multi-Purpose Wheeled Vehicles to M900 series line haul tractors and special bodies. The average age of all the trucks within the Army fleet is 15 years, and very few have more than traditional driving instrumentation on-board. Over the past decade, the Department of Transportation's (DOT's) Intelligent Transportation Systems (ITS) Program has conducted research and deployment activities in a number of areas including in-vehicle systems, communication and telematics technologies. Many current model passenger vehicles have demonstrated the assimilation of these technologies to enhance safety and trip quality. Commercial vehicles are also demonstrating many new electronic devices that are assisting in making them safer and more efficient. Moreover, a plethora of new technologies are about to be introduced to drivers that promise greater safety, enhanced efficiency, congestion avoidance, fuel usage reduction, and enhanced trip quality. The U.S. Army has special needs with regard to fleet management, logistics, sustainability, reliability, survivability, and fuel consumption that goes beyond similar requirements within the private industry. In order to effectively apply emerging ITS technologies to the special needs of the U.S. Army, planning for the conduct of the Army's Vehicle Intelligence Program (AVIP) has now commenced. The AVIP will be focused on the conduct of research that: (1) will apply ITS technologies to the special needs of the Army, and (2) will conduct research for special needs wi th regard to vehicle control, driver assistance, integration of vehicle intelligence and robotic technologies, managing effectively the information flow to drivers, enhanced logistics capabilities and sustainability of the Army's fleet during battlefield conditions. This paper will highlight the special needs of the Army, briefly describe two programs, which are embracing ITS technologies to a limited extent, will outline the AVIP, and will provide some insight into future Army vehicle intelligence efforts.

  8. Steering bound entangled states: A counterexample to the stronger Peres conjecture

    E-Print Network [OSTI]

    Tobias Moroder; Oleg Gittsovich; Marcus Huber; Otfried Gühne

    2014-05-22T23:59:59.000Z

    Quantum correlations are at the heart of many applications in quantum information science and, at the same time, they form the basis for discussions about genuine quantum effects and their difference to classical physics. On one hand, entanglement theory provides the tools to quantify correlations in information processing and many results have been obtained to discriminate useful entanglement, which can be distilled to a pure form, from bound entanglement, being of limited use in many applications. On the other hand, for discriminating quantum phenomena from their classical counterparts, Schr\\"odinger and Bell introduced the notions of steering and local hidden variable models. We provide a method to generate systematically bound entangled quantum states which can still be used for steering and therefore to rule out local hidden state models. This sheds light on the relations between the various views on quantum correlations and disproves a widespread conjecture known as the stronger Peres conjecture. For practical applications, it implies that even the weakest form of entanglement can be certified in a semi-device independent way.

  9. Polarization-resolved sensing with tilted fiber Bragg gratings: theory and limits of detection

    E-Print Network [OSTI]

    Bialiayeu, Aliaksandr; Albert, Jacques

    2015-01-01T23:59:59.000Z

    Polarization based sensing with tilted fiber Bragg grating (TFBG) sensors is analysed theoretically by two alternative approaches. The first method is based on tracking the grating transmission for two orthogonal states of linear polarized light that are extracted from the measured Jones matrix or Stokes vectors of the TFBG transmission spectra. The second method is based on the measurements along the system principle axes and polarization dependent loss (PDL) parameter, also calculated from measured data. It is shown that the frequent crossing of the Jones matrix eigenvalues as a function of wavelength leads to a non-physical interchange of the calculated principal axes; a method to remove this unwanted mathematical artefact and to restore the order of the system eigenvalues and the corresponding principal axes is provided. A comparison of the two approaches reveals that the PDL method provides a smaller standard deviation and therefore lower limit of detection in refractometric sensing. Furthermore, the pol...

  10. Three-dimensional microelectromechanical tilting platform operated by gear-driven racks

    DOE Patents [OSTI]

    Klody, Kelly A.; Habbit Jr., Robert D.

    2005-11-01T23:59:59.000Z

    A microelectromechanical (MEM) tiltable-platform apparatus is disclosed which utilizes a light-reflective platform (i.e. a micromirror) which is supported above a substrate by flexures which can be bent upwards to tilt the platform in any direction over an angle of generally .+-.10 degrees using a gear-driven rack attached to each flexure. Each rack is driven by a rotary microengine (i.e. a micromotor); and an optional thermal actuator can be used in combination with each microengine for initially an initial uplifting of the platform away from the substrate. The MEM apparatus has applications for optical switching (e.g. between a pair of optical fibers) or for optical beam scanning.

  11. Design, Fabrication, and Test of a Superconducting Dipole Magnet Based on Tilted Solenoids

    SciTech Connect (OSTI)

    Caspi, S.; Dietderich, D. R.; Ferracin, P.; Finney, N. R.; Fuery, M. J.; Gourlay, S. A.; Hafalia, A. R.

    2007-06-01T23:59:59.000Z

    It can be shown that, by superposing two solenoid-like thin windings that are oppositely skewed (tilted) with respect to the bore axis, the combined current density on the surface is 'cos-theta' like and the resulting magnetic field in the bore is a pure dipole. As a proof of principle, such a magnet was designed, built and tested as part of a summer undergraduate intern project. The measured field in the 25mm bore, 4 single strand layers using NbTi superconductor, exceeded 1 T. The simplicity of this high field quality design, void of typical wedges end-spacers and coil assembly, is especially suitable for insert-coils using High Temperature Superconducting wire as well as for low cost superconducting accelerator magnets for High Energy Physics. Details of the design, construction and test are reported.

  12. Tilt and running of cosmological observables in generalized single-field inflation

    SciTech Connect (OSTI)

    Bartolo, Nicola; Matarrese, Sabino [Dipartimento di Fisica ''G. Galilei'', Universitŕ degli Studi di Padova, via Marzolo 8, I-35131 Padova (Italy); Fasiello, Matteo [Dipartimento di Fisica ''G. Occhialini'', Universitŕ degli Studi di Milano Bicocca and INFN, Sezione di Milano Bicocca, Piazza della Scienza 3, I-20126 Milano (Italy); Riotto, Antonio, E-mail: nicola.bartolo@pd.infn.it, E-mail: matteo.fasiello@mib.infn.it, E-mail: sabino.matarrese@pd.infn.it, E-mail: riotto@mail.cern.ch [INFN, Sezione di Padova, via Marzolo 8, I-35131 Padova (Italy)

    2010-12-01T23:59:59.000Z

    Employing an effective field theory approach to inflationary perturbations, we analyze in detail the effect of curvature-generated Lagrangian operators on various observables, focusing on their running with scales. At quadratic order, we solve the equation of motion at next-to-leading leading order in a generalized slow-roll approximation for a very general theory of single-field inflation. We derive the resulting power spectrum, its tilt and running. We then focus on the contribution to the primordial non-Gaussianity amplitude f{sub NL} sourced by a specific interaction term. We show that the running of f{sub NL} can be substantially larger than what dictated by the slow-roll parameters.

  13. Examining the Impact of Pad Flexibility on the Rotordynamic Coefficients of Rocker-Pivot-Pad Tilting-Pad Journal Bearings

    E-Print Network [OSTI]

    Gaines, Jennifer Elizabeth

    2014-12-03T23:59:59.000Z

    Measured and predicted static and dynamic load characteristics are provided for a three-pad, rocker-pivot, tilting-pad journal bearing in the load-between-pad orientation. The bearing has the following characteristics: 3 pads, .50 pad pivot offset...

  14. Rotordynamic coefficients for a load-between-pad, flexible-pivot tilting pad bearing at high loads

    E-Print Network [OSTI]

    Hensley, John Eric

    2006-10-30T23:59:59.000Z

    The dynamic and static performance of a flexure-pivot tilting pad bearing is presented at a load between pad configuration for various load and speed combinations. A similar work performed on the same bearing at lower loads ranging from 0-1 MPa (0...

  15. Dynamic and Static Characteristics of a Rocker-Pivot, Tilting-Pad Bearing with 50% and 60% Offsets.

    E-Print Network [OSTI]

    Kulhanek, Chris David

    2012-02-14T23:59:59.000Z

    Static performance and rotordynamic coefficients are provided for a rocker-pivot, tilting-pad journal bearing with 50 and 60 percent offset pads in a load-between-pad configuration. The bearing uses leading-edge-groove lubrication and has...

  16. Tilted Brownian Ratchet for DNA Analysis Lotien Richard Huang, Edward C. Cox, Robert H. Austin,*, and James C. Sturm

    E-Print Network [OSTI]

    Tilted Brownian Ratchet for DNA Analysis Lotien Richard Huang, Edward C. Cox, Robert H. Austin of fractionation of 100-kb DNA molecules in Brownian ratchet arrays. In our device, the electrophoretic flow a higher fraction of the diffusing molecules is "ratcheted" at each step in the array. Molecules of lengths

  17. Influence of a longitudinal and tilted vibration on stability and dewetting of a liquid film S. Shklyaev,1

    E-Print Network [OSTI]

    Khenner, Mikhail

    that the viscosity is important only in a thin boundary layer near the rigid wall 5,6 . This approximation works well or a tilted vibration. Using a multiscale technique we split the film motion into the oscillatory essential for the oscillatory motion. Applying the lubrication approximation for the averaged motion we

  18. Steer Feeding

    E-Print Network [OSTI]

    Burns, John C.

    1915-01-01T23:59:59.000Z

    COMMITTEE L. J. HART. Chairman J. S. WILLIAMS W. A. MILLER, JR. GOVERNING BOARD, STATE SUBSTATIONS ............................................................................ p L. DOWNS, President Temple.. Term expires 191%) C~ARLES ROGAN, Vice... ~fite ~heAist R. H. RIDGELL, S. As~i~f?nf Chemist SUBSTATION NO. 1: Beeville, Bee County FRANK HODGES. B. 3.. As.slstant Chemist E. E. BINFORD, B. S.. Superintendent W. T. P. SPROTT, B. S.. Ass~stant Chemist SUBSTATION NO. 2: T~~~~, smith county...

  19. A Brownian motor with real-time external steering and induced drifts along pre-designed paths

    E-Print Network [OSTI]

    Boyer, Edmond

    A Brownian motor with real-time external steering and induced drifts along pre-designed paths substates for a given ground state Fg, 1 hal-00504983,version1-22Jul2010 #12;and results in diffusion within, the resulting interference pattern creates a position-dependent potential for each Zeeman substate for a given

  20. Using Dynamic Sets to OvercomeHigh U 0 LatenciesDuring Search David Steere M. Satyanarayanan

    E-Print Network [OSTI]

    Satyanarayanan, Mahadev "Satya"

    with the increasing mismatch between CPU and disk speeds in high-performance com- puting systems. As another exampleUsing Dynamic Sets to OvercomeHigh U 0 LatenciesDuring Search David Steere M. Satyanarayanan School to search applications. These benejitsinclude greater oppor- tunity in the I/O subsystem

  1. Silicon-integrated photonic circuit for a single-stage large-angle beam steering optical phased array

    E-Print Network [OSTI]

    Texas at Austin, University of

    are expected to be effectively utilized in modern radar and communication systems. These systems cover-space sections that imply inevitable diffraction and loss issues. Phase control systems [17] exploit-free steering, increased scan flexibility in two dimensions, precise elemental phase and amplitude control

  2. Influence of digestibility of bulky forages in daily gains in penned steers using two levels of supplemented grain

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Influence of digestibility of bulky forages in daily gains in penned steers using two levels Experimental Agropecuaria, 2700 Pergamino, Buenos Aires, Argentina Digestibility of bulky forages directly, 95-121). In general there is more information about high quality forage digestibility than about low

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

    E-Print Network [OSTI]

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

    2010-01-01T23:59:59.000Z

    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 ...

  4. PRO: Professional Record Online G:\\IR\\PRO\\Implementation Plan\\SC\\PRO Steering Committee Minutes_020312

    E-Print Network [OSTI]

    PRO: Professional Record Online G:\\IR\\PRO\\Implementation Plan\\SC\\PRO Steering Committee Minutes in their work. The data entry team searched for photos/videos of music faculty online and found a few about PRO and will use the PRO website user guide and FAQs to respond to questions. Returning

  5. Feedback control and steering laws for spacecraft using single gimbal control moment gyros

    E-Print Network [OSTI]

    Oh, Hwa-Suk

    1988-01-01T23:59:59.000Z

    of wheel as h = J "QI the above equation can be written as HI = JCt~+ Jt'rt + h. (2 ? 11) To combine H; with the vehicle's angular momentum, we rewrite the above G/CG equation in vehicle frame as H =C JC~+C Jo +C h Hence the total angular momentum H... to differentiate H, G/CG G/CG as follows: (HG/cG) (HG/cG) iv - G(HG/cG) dt ? ' dt ? ' (2 ? 16) where u is the cross product matrix. The first term on the right-hand side of the above equation can be written in gimbal frame, as ? (H, )G; = JCrcu + JC, ri...

  6. "By the hundred's of thousand's, these unlikely transportation revolutionaries are forgoing the safety of a steel cage with airbags and anti-lock brakes for a wispy two-wheeled exoskeleton as they make their way to work,

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    the safety of a steel cage with airbags and anti-lock brakes for a wispy two-wheeled exoskeleton as they make

  7. Highly bent (110) Ge crystals for efficient steering of ultrarelativistic beams

    SciTech Connect (OSTI)

    De Salvador, D.; Maggioni, G.; Carturan, S.; Bazzan, M.; Argiolas, N.; Carnera, A. [INFN Laboratori Nazionali di Legnaro, Viale Universitŕ 2, 35020 Legnaro (PD) and Dipartimento di Fisica e Astronomia, Universitŕ di Padova, Via Marzolo 8, 35131 Padova (Italy)] [INFN Laboratori Nazionali di Legnaro, Viale Universitŕ 2, 35020 Legnaro (PD) and Dipartimento di Fisica e Astronomia, Universitŕ di Padova, Via Marzolo 8, 35131 Padova (Italy); Dalla Palma, M.; Della Mea, G. [INFN Laboratori Nazionali di Legnaro, Viale Universitŕ 2, 35020 Legnaro (PD) and Dipartimento di Ingegneria Industriale, Universitŕ di Trento, Via Mesiano 77, 38050 Trento (Italy)] [INFN Laboratori Nazionali di Legnaro, Viale Universitŕ 2, 35020 Legnaro (PD) and Dipartimento di Ingegneria Industriale, Universitŕ di Trento, Via Mesiano 77, 38050 Trento (Italy); Bagli, E.; Mazzolari, A.; Bandiera, L.; Guidi, V. [INFN Sezione di Ferrara, Dipartimento di Fisica, Universitŕ di Ferrara Via Saragat 1, 44100 Ferrara (Italy)] [INFN Sezione di Ferrara, Dipartimento di Fisica, Universitŕ di Ferrara Via Saragat 1, 44100 Ferrara (Italy); Lietti, D.; Berra, A.; Guffanti, G.; Prest, M. [Dipartimento di Scienza e Alta Tecnologia, Universitŕ dell'Insubria, Via Valleggio 11, 22100 Como and INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milan (Italy)] [Dipartimento di Scienza e Alta Tecnologia, Universitŕ dell'Insubria, Via Valleggio 11, 22100 Como and INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milan (Italy); Vallazza, E. [INFN Sezione di Trieste, Via Valerio 2, 34127 Trieste (Italy)] [INFN Sezione di Trieste, Via Valerio 2, 34127 Trieste (Italy)

    2013-10-21T23:59:59.000Z

    Thanks to the effective electrostatic potential generated by the ordered atomic structure, bent crystals can efficiently deflect ultra relativistic charged beams by means of planar and axial channeling phenomena as well as of the recently discovered volume reflection effect. Most of the experimental knowledge about these phenomena has been gathered with Si crystals, but it has been recently demonstrated that the steering performance can be improved by using high quality Ge materials which have a larger atomic number. In this paper, we investigate channeling and volume reflection of 400 GeV protons from (110) lattice planes in highly bent Ge strips crystals. Both production and characterization of the strips are presented. Herein, the experimental results on deflection are compared with theoretical predictions, with previous published data and with the expected performances of Si crystals in similar experimental conditions.

  8. Mechanism of Preferential Adsorption of SO2 into Two Microporous Paddle Wheel Frameworks M(bdc)(ted)(0.5)

    SciTech Connect (OSTI)

    Tan, Kui; Canepa, Pieremanuele; Gong, Qihan; Liu, Jian; Johnson, Daniel H.; Dyevoich, Allison A.; Thallapally, Praveen K.; Thonhauser, Timo; Li, Jing; Chabal, Y. J.

    2013-12-02T23:59:59.000Z

    The adsorption of a corrosive gas, SO¬2, into microporous pillared paddle-wheel frameworks M(bdc)(ted)0.5 [M = Ni, , Zn; bdc = 1,4-benzenedicarboxylate; ted=triethylenediamine] is studied by volumetric adsorption measurements and a combination of in-situ infrared spectroscopy and ab initio density functional theory (DFT) calculations. The uptake of SO2 in M(bdc)(ted)0.5 at room temperature is quite significant, 9.966 mol kg-1(63.8%) at room temperature/1.132 bar, which represents the highest SO2 uptake so far observed. Two different adsorption species are identified by infrared spectroscopy: one is typical physisorbed SO2 species, charac-terized by a modest red shift of S-O stretching bands (36 cm-1 for ?as and 7 cm-1 for ?s); the other characterized by adsorption bands at 1242 and 1105cm-1 and by a much higher (~150?C) temperature to completely remove. Theoretical calculations including van der Waals interactions (based on vdW-DF) indicate that the adsorption geometry of SO2 involves one molecule bonding of its sulfur atom to the oxygen atom of the paddle-wheel building unit and its two oxygen atoms to the C-H groups of the organic linkers by formation of hydrogen bonds. Such a configuration results in a large distortion of benzene rings, which is consistent with the experimentally observed shift of the ring deformation mode. The simulated frequency shift of the SO2 stretching bands by vdW-DF is in excellent agreement with spectroscopically measured value of physisorbed SO2. The IR absorptions at 1242 and 1105 cm-1 also suggest a stronger adsorption configuration, previously observed in SO4-like species involving two oxygen atoms of the paddle wheel building units. The adsorption configurations of SO2 into M(bdc)(ted)0.5 derived by infrared spectroscopy and vdW-DF calculations provide the understanding necessary to develop industrial processes for SO2 removal using microporous paddle-wheel frameworks materials.

  9. A study of certain elastic and plastic strains induced in flexible pavement systems by repetitive wheel loads

    E-Print Network [OSTI]

    Meyer, Kirby Thomas

    1959-01-01T23:59:59.000Z

    Vehicle Magnitude of Hheel Load and Tire Pressure Repetitive Testing The Testing Procedures 50 Effect of Area of Influence of Nheel Load on Data Validity Horisontal extent of pavement depression under load wheel 50 51 Effect of depressed area ou... sites 12, 13, and 14. 25. Illustration of the plate and the placement of the beam probes in a study of extrusion between the tires 26. A comparison of measured deflections on the plate with 28 31 33 39 39 40 43 those on the pavmsent 27. A...

  10. "It's Like Giving Us a Car, Only Without the Wheels": Performance of Latina Students at an Early College High School

    E-Print Network [OSTI]

    Locke, Leslie Ann

    2012-02-14T23:59:59.000Z

    School. (December 2011) Leslie Ann Locke, B.S.; M.L.S, University of Minnesota?Twin Cities Chair of Advisory Committee: Dr. Kathryn McKenzie This dissertation presents the results from an empirical study of the perspectives of Latina students who... ?IT?S LIKE GIVING US A CAR, ONLY WITHOUT THE WHEELS?: PERFORMANCE OF LATINA STUDENTS AT AN EARLY COLLEGE HIGH SCHOOL A Dissertation by LESLIE ANN LOCKE Submitted to the Office of Graduate Studies of Texas A&M University...

  11. Steering Committee Progress Report on Hydrogen Sensor Performance Testing and Evaluation under the Memorandum of Agreement between NREL, U.S. DOE and JRC-IET, EC

    SciTech Connect (OSTI)

    Buttner, W.; Post, M.; Burgess, R.; Rivkin, C.; Boon-Brett, L.; Palmisano, V.; Bonato, C.; Harskamp, F.

    2012-12-01T23:59:59.000Z

    This progress report is a programmatic summary of a formal MOA between NREL and the European Union Joint Research Center, Institute for Energy and Transport to be presented at the Steering Committee Meeting, December 3, 2012.

  12. Evaluation of sire differences in postweaning growth traits and carcass characteristics, and the use of ultrasound measurements as predictors of observed carcass values in purebreed beefmaster steers

    E-Print Network [OSTI]

    McDonald, Lawrence Andrew

    1996-01-01T23:59:59.000Z

    resulting from the Brahman x British cross improves production and growth traits, the Brahman influence has been shown to negatively affect carcass quality, especially tenderness (Koch et al. , 1982; Crouse et al. , 1989; Johnson et al. , 1990). Crouse et... slaughtered with less days on feed than steers from continental breeds. And in 1982, Koch et al. reported that Brahman crossbred steers had heavier final weights than those from Angus, Hereford, Pinzgauer, Tarentaise, and Sahiwal sires when fed to a time...

  13. National Beef Quality Audit-2011: In-Plant Survey of Targeted Carcass Characteristics Related to Quality, Quantity, Value, and Marketing of Fed Steers and Heifers 

    E-Print Network [OSTI]

    Moore, Melanie 1989-

    2012-11-26T23:59:59.000Z

    NATIONAL BEEF QUALITY AUDIT?2011: IN-PLANT SURVEY OF TARGETED CARCASS CHARACTERISTICS RELATED TO QUALITY, QUANTITY, VALUE, AND MARKETING OF FED STEERS AND HEIFERS A Thesis by MELANIE CATHERINE MOORE Submitted to the Office of Graduate.... Russell Cross December 2012 Major Subject: Animal Science Copyright 2012 Melanie Catherine Moore ii ABSTRACT The National Beef Quality Audit ? 2011 assessed the current status of quality and consistency of fed steers and heifers. Beef...

  14. Experimental frequency-dependent rotordynamic coefficients for a load-on-pad, high-speed, flexible-pivot tilting-pad bearing

    E-Print Network [OSTI]

    Rodriguez Colmenares, Luis Emigdio

    2004-09-30T23:59:59.000Z

    This thesis provides experimental frequency dependent stiffness and damping coefficient results for a high-speed, lightly loaded, flexible-pivot tilting-pad bearing, with a load-on-pad configuration. Test conditions include four shaft speeds (6000...

  15. Static characteristics and rotordynamic coefficients of a four-pad tilting-pad journal bearing with ball-in-socket pivots in load-between-pad configuration

    E-Print Network [OSTI]

    Harris, Joel Mark

    2009-05-15T23:59:59.000Z

    Static characteristics and rotordynamic coefficients were experimentally determined for a four-pad tilting-pad journal bearing with ball-in-socket pivots in loadbetween- pad configuration. A frequency-independent [M]-[C]-[K] model fit...

  16. vy physical work). Some white-collar jobs may share these characteris-tics, but these factors overwhelmingly tilt toward blue-collar occupations.

    E-Print Network [OSTI]

    Holsinger, Kent

    overwhelmingly tilt toward blue-collar occupations. Often blue-collar jobs tend to be dirty, dangerous, and of a confiscated driver's license. Loaning money and covering for behav- ioral problems are also not uncommon. Some

  17. Unique determination of the -CN group tilt angle in Langmuir monolayers using sum-frequency polarization null angle and phase

    SciTech Connect (OSTI)

    Velarde Ruiz Esparza, Luis A.; Wang, Hongfei

    2013-10-14T23:59:59.000Z

    The relative phase and amplitude ratio between the ssp and ppp polarization combinations of the vibrational sum-frequency generation (SFG) response can be uniquely and accurately determined by the polarization null angle (PNA) method. In this report we show that PNA measurements of the -CN vibration in the 4-n pentyl-4'-cyanoterphenyl (5CT) Langmuir monolayer at the air/water interface yields ssp and ppp response of the same phase, while those in the 4-n-octyl-4'cyanobiphenyl (8CB) Langmuir monolayer have the opposite phase. Accordingly, the -CN group in the 5CT monolayer is tilted around 25+/-2 from the interface normal, while that in the 8CB is tilted around 57+/-2, consistent with the significant differences in the phase diagrams and hydrogen bonding SFG spectra of the two Langmuir monolayers as reported in the literature. These results also demonstrate that in SFG studies the relative phase information of the different polarization combinations, especially for the ssp and ppp, is important in the unique determination of the tilt angle and conformation of a molecular group at the interface.

  18. Fuzzy Logic of Speed and Steering Control System for Three Dimensional Line Following of an Autonomous Vehicle

    E-Print Network [OSTI]

    Shukla, Shailja

    2010-01-01T23:59:59.000Z

    ... This paper is to describe exploratory research on the design of a modular autonomous mobile robot controller. The controller incorporates a fuzzy logic [8] [9] approach for steering and speed control [37], a FL approach for ultrasound sensing and an overall expert system for guidance. The advantages of a modular system are related to portability and transportability, i.e. any vehicle can become autonomous with minimal modifications. A mobile robot test bed has been constructed in university of Cincinnati using a golf cart base. This cart has full speed control with guidance provided by a vision system and obstacle avoidance using ultrasonic sensors. The speed and steering fuzzy logic controller is supervised through a multi-axis motion controller. The obstacle avoidance system is based on a microcontroller interfaced with ultrasonic transducers. This micro-controller independently handles all timing and distance calculations and sends distance information back to the fuzzy logic controller via the serial ...

  19. Simulations of dislocation pile-ups at assymetric tilt boundaries in aluminum

    SciTech Connect (OSTI)

    Valone, Steven [Los Alamos National Laboratory; Wang, Jian M [Los Alamos National Laboratory; Hoagland, Richard C [Los Alamos National Laboratory; Germann, Timothy C [Los Alamos National Laboratory

    2011-01-21T23:59:59.000Z

    Materials deformation processes are increasingly approachable through the both conventional and accelerated molecular dynamics. In one deformation process, dislocation pile-up at a grain boundary, a greater understanding is required as to how dislocations transmit through grain boundaries, causing plastic deformation, or reflect and reconstruct the grain boundary, but with no macroscopic deformation. Here dislocation pile-ups in an alwninum bicrystal with an asymmetric tilt grain boundary are simulated atomistically, introducing effects of dislocation interactions beyond linear elastic ones. The observed responses as functions of the number of explicitly modeled dislocations and the magnitude of the applied stress are discussed. Typical conditions for the simulations consist of thermal relaxation room temperature, five active dislocations inserted within a 6.5-million-atom cell, and an additional fourteen dislocations represented within the atomistic simulation by their elastic strain fields. The dislocations are initially distributed according to linear elastic estimates of their positions in a double-ended pile-up from a chosen far-field stress. The whole cell is allowed to relax according to a procedure to be described. In the ensuing simulations, the system is propagated for some substantial period of time (lOs of ps), followed by small increments of strain. After a number of such increments, we observe all of the anticipated events. Usually several of the closest dislocations are absorbed into the grain boundary, resulting in varying amounts of reconstruction. Reflections from the boundary are common and show a strong dependence on sample thickness. Transmission events are seen on both slip systems in the other grain. The particulars of these events will be described as well.

  20. Entanglement, EPR steering, and Bell-nonlocality criteria for multipartite higher-spin systems

    E-Print Network [OSTI]

    He, Q Y; Reid, M D

    2011-01-01T23:59:59.000Z

    We develop criteria to detect three classes of nonlocality that have been shown by Wiseman et al. [Phys. Rev. Lett. 98, 140402 (2007)] to be nonequivalent: entanglement, EPR steering, and the failure of local hidden-variable theories. We use the approach of Cavalcanti et al. [Phys. Rev. Lett. 99, 210405 (2007)] for continuous variables to develop the nonlocality criteria for arbitrary spin observables defined on a discrete Hilbert space. The criteria thus apply to multisite qudits, i.e., systems of fixed dimension d, and take the form of inequalities. We find that the spin moment inequalities that test local hidden variables (Bell inequalities) can be violated for arbitrary d by optimized highly correlated nonmaximally entangled states provided the number of sites N is high enough. On the other hand, the spin inequalities for entanglement are violated and thus detect entanglement for such states, for arbitrary d and N, and with a violation that increases with N.We show that one of the moment entanglement ineq...

  1. Well-to-wheels analysis of fast pyrolysis pathways with the GREET model.

    SciTech Connect (OSTI)

    Han, J.; Elgowainy, A.; Palou-Rivera, I.; Dunn, J.B.; Wang, M.Q. (Energy Systems)

    2011-12-01T23:59:59.000Z

    The pyrolysis of biomass can help produce liquid transportation fuels with properties similar to those of petroleum gasoline and diesel fuel. Argonne National Laboratory conducted a life-cycle (i.e., well-to-wheels [WTW]) analysis of various pyrolysis pathways by expanding and employing the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model. The WTW energy use and greenhouse gas (GHG) emissions from the pyrolysis pathways were compared with those from the baseline petroleum gasoline and diesel pathways. Various pyrolysis pathway scenarios with a wide variety of possible hydrogen sources, liquid fuel yields, and co-product application and treatment methods were considered. At one extreme, when hydrogen is produced from natural gas and when bio-char is used for process energy needs, the pyrolysis-based liquid fuel yield is high (32% of the dry mass of biomass input). The reductions in WTW fossil energy use and GHG emissions relative to those that occur when baseline petroleum fuels are used, however, is modest, at 50% and 51%, respectively, on a per unit of fuel energy basis. At the other extreme, when hydrogen is produced internally via reforming of pyrolysis oil and when bio-char is sequestered in soil applications, the pyrolysis-based liquid fuel yield is low (15% of the dry mass of biomass input), but the reductions in WTW fossil energy use and GHG emissions are large, at 79% and 96%, respectively, relative to those that occur when baseline petroleum fuels are used. The petroleum energy use in all scenarios was restricted to biomass collection and transportation activities, which resulted in a reduction in WTW petroleum energy use of 92-95% relative to that found when baseline petroleum fuels are used. Internal hydrogen production (i.e., via reforming of pyrolysis oil) significantly reduces fossil fuel use and GHG emissions because the hydrogen from fuel gas or pyrolysis oil (renewable sources) displaces that from fossil fuel natural gas and the amount of fossil natural gas used for hydrogen production is reduced; however, internal hydrogen production also reduces the potential petroleum energy savings (per unit of biomass input basis) because the fuel yield declines dramatically. Typically, a process that has a greater liquid fuel yield results in larger petroleum savings per unit of biomass input but a smaller reduction in life-cycle GHG emissions. Sequestration of the large amount of bio-char co-product (e.g., in soil applications) provides a significant carbon dioxide credit, while electricity generation from bio-char combustion provides a large energy credit. The WTW energy and GHG emissions benefits observed when a pyrolysis oil refinery was integrated with a pyrolysis reactor were small when compared with those that occur when pyrolysis oil is distributed to a distant refinery, since the activities associated with transporting the oil between the pyrolysis reactors and refineries have a smaller energy and emissions footprint than do other activities in the pyrolysis pathway.

  2. A. Galip Ulsoy, Mechanical Engineering Department! College of Engineering, University of Michigan at Ann Arbor!

    E-Print Network [OSTI]

    Ulsoy, A. Galip

    subsystem! ·" Role of the Driver! -" Driver state and uncertainty modeling! -" Robust steering assist! ·"Kalman filters! ·"control pressure to wheels for brake-steer! ·"Apple Quadra 800, Dell Pentium, I/O rack ! ·"several Kalman filters! ·"control of pressure to individual rear wheels for brake-steer! A high

  3. Design and Implementation of a Teleautonomous Hummer Darrin C. Bentivegna, Khaled S. Ali, Ronald C. Arkin and Tucker Balch

    E-Print Network [OSTI]

    for steering, brake, and throttle have been implemented on a commercially available Hummer. Control is provided to feedback sensors for the steering wheel, brake, and forward speed; and a Unix workstation for high control the steering wheel, brake pedal and throttle. A control computer performs low­level computation

  4. Uranium vacancy mobility at the sigma 5 symmetric tilt grain boundary in UO2

    SciTech Connect (OSTI)

    Uberuaga, Blas P. [Los Alamos National Laboratory

    2012-05-02T23:59:59.000Z

    An important consequence of the fissioning process occurring during burnup is the formation of fission products. These fission products alter the thermo-mechanical properties of the fuel. They also lead to macroscopic changes in the fuel structure, including the formation of bubbles that are connected to swelling of the fuel. Subsequent release of fission gases increase the pressure in the plenum and can cause changes in the properties of the fuel pin itself. It is thus imperative to understand how fission products, and fission gases in particular, behave within the fuel in order to predict the performance of the fuel under operating conditions. Fission gas redistribution within the fuel is governed by mass transport and the presence of sinks such as impurities, dislocations, and grain boundaries. Thus, to understand how the distribution of fission gases evolves in the fuel, we must understand the underlying transport mechanisms, tied to the concentrations and mobilities of defects within the material, and how these gases interact with microstructural features that might act as sinks. Both of these issues have been addressed in previous work under NEAMS. However, once a fission product has reached a sink, such as a grain boundary, its mobility may be different there than in the grain interior and predicting how, for example, bubbles nucleate within grain boundaries necessitates an understanding of how fission gases diffuse within boundaries. That is the goal of the present work. In this report, we describe atomic level simulations of uranium vacancy diffusion in the pressence of a {Sigma}5 symmetric tilt boundary in urania (UO{sub 2}). This boundary was chosen as it is the simplest of the boundaries we considered in previous work on segregation and serves as a starting point for understanding defect mobility at boundaries. We use a combination of molecular statics calculations and kinetic Monte Carlo (kMC) to determine how the mobility of uranium vacancies is altered at this particular grain boundary. Given that the diffusion of fission gases such as Xe are tied to the mobility of uranium vacancies, these results given insight into how fission gas mobility differs at grain boundaries compared to bulk urania.

  5. Atick-Witten Hagedorn Conjecture, near scale-invariant matter and blue-tilted gravity power spectrum

    E-Print Network [OSTI]

    Tirthabir Biswas; Tomi Koivisto; Anupam Mazumdar

    2014-05-03T23:59:59.000Z

    We will provide an interesting new mechanism to generate almost scale invariant seed density perturbations with a red spectrum, while keeping the gravitational wave spectrum blue-tilted in a stringy thermal contracting phase at temperatures beyond the Hagedorn temperature. This phase is often referred to as the Hagedorn phase where the free energy has been conjectured by Atick and Witten to grow more slowly than ordinary radiation. The primordial fluctuations are created by the statistical thermal fluctuations determined by the partition function, rather than quantum vacuum driven fluid dynamical fluctuations. In order for our mechanism to work we require a non-singular bouncing cosmology.

  6. Fecal nitrogen as an indicator of nutritional stress in steers in semi-arid rangelands of Kenya

    E-Print Network [OSTI]

    Shaabani, Salim B.

    1985-01-01T23:59:59.000Z

    . Acknowledgments and special thanks are extended to Mr. M1chael Mwikya of the Food Habits Laboratory at the Kiboko National Range Research Station, all the staff of the Station in general, and members of the Ecology Section in part1 cular for their support... National Range Research Stion ~enya . . 55 10 12 Relationship of organic matter intake (kg) to fecal soluble to total nitrogen ratio of steers grazing in C~ommi hora Savannah 1n Ki boko National Range Research 3~aon, Kenya. . 'Relationship of organic...

  7. Effects of zeranol, sex and forage versus concentrate feeding regimens on performance and carcass characteristics of bulls and steers

    E-Print Network [OSTI]

    Polser, David Meredith

    1992-01-01T23:59:59.000Z

    are unpredictable. Baker and Arthaud (1972) concluded that the response of bulls to growth stimulants is highly variable, which may be due to the age at which treatment was initiated. Postweaning implanting of young bulls with zeranol during the feedlot period... rate, feed utilization and body composition of young bulls and steers. J. Anim. Sci. 25:132. Baker, F. H. and V. H. Arthaud. 1972. Use of hormones or hormone active agents in production of slaughter hulls. J. Anim. Sci. 35:752. Bidart, J. B. , R. M...

  8. Reconciliation of local and long range tilt correlations in underdoped La??xBaxCuO? (0 ? x ? 0.155)

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

    Bozin, Emil S. [Brookhaven National Lab. (BNL), Upton, NY (United States); Zhong, Ruidan [Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States); Knox, Kevin R. [Brookhaven National Lab. (BNL), Upton, NY (United States); Gu, Genda [Brookhaven National Lab. (BNL), Upton, NY (United States); Hill, John P. [Brookhaven National Lab. (BNL), Upton, NY (United States); Tranquada, John M. [Brookhaven National Lab. (BNL), Upton, NY (United States); Billinge, Simon J. L. [Brookhaven National Lab. (BNL), Upton, NY (United States); Columbia Univ., New York, NY (United States)

    2015-02-01T23:59:59.000Z

    A long standing puzzle regarding the disparity of local and long range CuO? octahedral tilt correlations in the underdoped regime of La??xBaxCuO? is addressed by utilizing complementary neutron powder diffraction and inelastic neutron scattering (INS) approaches. Long-range and static CuO? tilt order with orthogonally inequivalent Cu-O bonds in the CuO? planes in the low temperature tetragonal (LTT) phase is succeeded on warming through the low-temperature transition by one with orthogonally equivalent bonds in the low temperature orthorhombic (LTO) phase. In contrast, the signatures of LTT-type tilts in the instantaneous local atomic structure persist on heating throughout the LTO crystallographic phase on the nanoscale, although becoming weaker as temperature increases. Analysis of the INS spectra for the x = 1/8 composition reveals the dynamic nature of the LTT-like tilt fluctuations within the LTO phase and their 3D character. The doping dependence of relevant structural parameters indicates that the magnitude of the Cu-O bond anisotropy has a maximum at x = 1/8 doping where bulk superconductivity is most strongly suppressed, suggesting that the structural anisotropy might be influenced by electron-phonon coupling and the particular stability of the stripe-ordered phase at this composition. The bond-length modulation that pins stripe order is found to be remarkably subtle, with no anomalous bond length disorder at low temperature, placing an upper limit on any in-plane Cu-O bondlength anisotropy. The results further reveal that although appreciable octahedral tilts persist through the high-temperature transition and into the high temperature tetragonal (HTT) phase, there is no significant preference between different tilt directions in the HTT regime. This study also exemplifies the importance of a systematic approach using complementary techniques when investigating systems exhibiting a large degree of complexity and subtle structural responses.

  9. Reconciliation of local and long range tilt correlations in underdoped La??xBaxCuO? (0 ? x ? 0.155)

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

    Bozin, Emil S.; Zhong, Ruidan; Knox, Kevin R.; Gu, Genda; Hill, John P.; Tranquada, John M.; Billinge, Simon J. L.

    2015-02-01T23:59:59.000Z

    A long standing puzzle regarding the disparity of local and long range CuO? octahedral tilt correlations in the underdoped regime of La??xBaxCuO? is addressed by utilizing complementary neutron powder diffraction and inelastic neutron scattering (INS) approaches. Long-range and static CuO? tilt order with orthogonally inequivalent Cu-O bonds in the CuO? planes in the low temperature tetragonal (LTT) phase is succeeded on warming through the low-temperature transition by one with orthogonally equivalent bonds in the low temperature orthorhombic (LTO) phase. In contrast, the signatures of LTT-type tilts in the instantaneous local atomic structure persist on heating throughout the LTO crystallographic phasemore »on the nanoscale, although becoming weaker as temperature increases. Analysis of the INS spectra for the x = 1/8 composition reveals the dynamic nature of the LTT-like tilt fluctuations within the LTO phase and their 3D character. The doping dependence of relevant structural parameters indicates that the magnitude of the Cu-O bond anisotropy has a maximum at x = 1/8 doping where bulk superconductivity is most strongly suppressed, suggesting that the structural anisotropy might be influenced by electron-phonon coupling and the particular stability of the stripe-ordered phase at this composition. The bond-length modulation that pins stripe order is found to be remarkably subtle, with no anomalous bond length disorder at low temperature, placing an upper limit on any in-plane Cu-O bondlength anisotropy. The results further reveal that although appreciable octahedral tilts persist through the high-temperature transition and into the high temperature tetragonal (HTT) phase, there is no significant preference between different tilt directions in the HTT regime. This study also exemplifies the importance of a systematic approach using complementary techniques when investigating systems exhibiting a large degree of complexity and subtle structural responses.« less

  10. Symmetries of migration related segments of all [001] coincidence site lattice tilt boundaries in (001) projections for all holohedral cubic materials

    SciTech Connect (OSTI)

    Moeck, Peter; York, Bryant W.; Browning, Nigel D.

    2014-09-11T23:59:59.000Z

    Utilizing bicrystallography in two dimensions (2D), the symmetries of migration related segments of Coincidence Site Lattice (CSL) boundaries are derived for projections along their [001] tilt axis in grain boundaries of crystalline materials that possess the holohedral point symmetry of the cubic system (i.e. m3m). These kinds of “edge-on” projections are typical for atomic resolution imaging of such tilt boundaries with Transmission Electron Microscopes (TEM). This fact facilitates the visual confirmation of our predictions by recently published Zcontrast scanning TEM investigations [H. Yang et al., Phil. Mag. 93 (2013) 1219] and many other TEM studies.

  11. Well-to-Wheels analysis of landfill gas-based pathways and their addition to the GREET model.

    SciTech Connect (OSTI)

    Mintz, M.; Han, J.; Wang, M.; Saricks, C.; Energy Systems

    2010-06-30T23:59:59.000Z

    Today, approximately 300 million standard cubic ft/day (mmscfd) of natural gas and 1600 MW of electricity are produced from the decomposition of organic waste at 519 U.S. landfills (EPA 2010a). Since landfill gas (LFG) is a renewable resource, this energy is considered renewable. When used as a vehicle fuel, compressed natural gas (CNG) produced from LFG consumes up to 185,000 Btu of fossil fuel and generates from 1.5 to 18.4 kg of carbon dioxide-equivalent (CO{sub 2}e) emissions per million Btu of fuel on a 'well-to-wheel' (WTW) basis. This compares with approximately 1.1 million Btu and 78.2 kg of CO{sub 2}e per million Btu for CNG from fossil natural gas and 1.2 million Btu and 97.5 kg of CO{sub 2}e per million Btu for petroleum gasoline. Because of the additional energy required for liquefaction, LFG-based liquefied natural gas (LNG) requires more fossil fuel (222,000-227,000 Btu/million Btu WTW) and generates more GHG emissions (approximately 22 kg CO{sub 2}e /MM Btu WTW) if grid electricity is used for the liquefaction process. However, if some of the LFG is used to generate electricity for gas cleanup and liquefaction (or compression, in the case of CNG), vehicle fuel produced from LFG can have no fossil fuel input and only minimal GHG emissions (1.5-7.7 kg CO{sub 2}e /MM Btu) on a WTW basis. Thus, LFG-based natural gas can be one of the lowest GHG-emitting fuels for light- or heavy-duty vehicles. This report discusses the size and scope of biomethane resources from landfills and the pathways by which those resources can be turned into and utilized as vehicle fuel. It includes characterizations of the LFG stream and the processes used to convert low-Btu LFG into high-Btu renewable natural gas (RNG); documents the conversion efficiencies and losses of those processes, the choice of processes modeled in GREET, and other assumptions used to construct GREET pathways; and presents GREET results by pathway stage. GREET estimates of well-to-pump (WTP), pump-to-wheel (PTW), and WTW energy, fossil fuel, and GHG emissions for each LFG-based pathway are then summarized and compared with similar estimates for fossil natural gas and petroleum pathways.

  12. A real-world application of lane-guidance technologies - Automated snowblower

    E-Print Network [OSTI]

    Tan, Han-Shue; Bu, Fanping; Bougler, Benedicte

    2007-01-01T23:59:59.000Z

    modeling the low-speed tire- induced oscillation, designing high-gain automatic control on front wheels while keeping rear steering

  13. Study of the interaction of solutes with ?5 (013) tilt grain boundaries in iron using density-functional theory

    SciTech Connect (OSTI)

    Jin, Hao; Militzer, Matthias [Centre for Metallurgical Process Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada); Elfimov, Ilya [Quantum Matter Institute, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada)

    2014-03-07T23:59:59.000Z

    Substitutional alloying elements significantly affect the recrystallization and austenite-ferrite phase transformation rates in steels. The atomistic mechanisms of their interaction with the interfaces are still largely unexplored. Using density functional theory, we determine the segregation energies between commonly used alloying elements and the ?5 (013) tilt grain boundary in bcc iron. We find a strong solute-grain boundary interaction for Nb, Mo, and Ti that is consistent with experimental observations of the effects of these alloying elements on delaying recrystallization and the austenite-to-ferrite transformation in low-carbon steels. In addition, we compute the solute-solute interactions as a function of solute pair distance in the grain boundary, which suggest co-segregation for these large solutes at intermediate distances in striking contrast to the bulk.

  14. The sensitivity enhancement of tilted fibre Bragg grating sensors with polarization dependent resonant nano-scale coatings

    E-Print Network [OSTI]

    Bialiayeu, Aliaksandr

    2015-01-01T23:59:59.000Z

    Fibre Bragg grating sensors have emerged as a simple, inexpensive, accurate, sensitive and reliable platform, a viable alternative to the traditional bulkier optical sensor platforms. In this work we present an extensive theoretical analysis of the tilted fibre Bragg grating sensor (TFBG) with a particular focus on its polarization-dependent properties. We have developed a highly efficient computer model capable of providing the full characterization of the TFBG device in less then $3$~minutes for a given state of incident light polarization. As a result, the polarization-dependent spectral response, the field distribution at the sensor surface as well as the fine structure of particular resonances have become accessible for theoretical analysis. As a part of this computer model we have developed a blazingly fast full-vector complex mode solver, capable of handling cylindrical waveguides of an arbitrary complex refractive index profile. Along with the theoretical study we have investigated optical properties ...

  15. Crystallographically tilted and partially strain relaxed GaN grown on inclined (111) facets etched on Si(100) substrate

    SciTech Connect (OSTI)

    Ansah Antwi, K. K. [Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576 (Singapore); Institute of Materials Research and Engineering, 3 Research Link, 117602 Singapore (Singapore); Soh, C. B. [Singapore Institute of Technology, 10 Dover Drive, Singapore 138683 (Singapore); Wee, Q. [Singapore-MIT Alliance, National University of Singapore, Singapore 117576 (Singapore); Tan, Rayson J. N.; Tan, H. R. [Institute of Materials Research and Engineering, 3 Research Link, 117602 Singapore (Singapore); Yang, P. [Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, 117603 Singapore (Singapore); Sun, L. F.; Shen, Z. X. [School of Physical and Mathematical Sciences, Nanyang Technological University, SPMS-03-01, 21 Nanyang Link (Singapore); Chua, S. J., E-mail: elecsj@nus.edu.sg [Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576 (Singapore); Institute of Materials Research and Engineering, 3 Research Link, 117602 Singapore (Singapore); Singapore-MIT Alliance, National University of Singapore, Singapore 117576 (Singapore)

    2013-12-28T23:59:59.000Z

    High resolution X-ray diffractometry (HR-XRD), Photoluminescence, Raman spectroscopy, and Transmission electron microscope measurements are reported for GaN deposited on a conventional Si(111) substrate and on the (111) facets etched on a Si(100) substrate. HR-XRD reciprocal space mappings showed that the GaN(0002) plane is tilted by about 0.63°?±?0.02° away from the exposed Si(111) growth surface for GaN deposited on the patterned Si(100) substrate, while no observable tilt existed between the GaN(0002) and Si(111) planes for GaN deposited on the conventional Si(111) substrate. The ratio of integrated intensities of the yellow to near band edge (NBE) luminescence (I{sub YL}/I{sub NBE}) was determined to be about one order of magnitude lower in the case of GaN deposited on the patterned Si(100) substrate compared with GaN deposited on the conventional Si(111) substrate. The Raman E{sub 2}(high) optical phonon mode at 565.224?±?0.001?cm{sup ?1} with a narrow full width at half maximum of 1.526?±?0.002?cm{sup ?1} was measured, for GaN deposited on the patterned Si(100) indicating high material quality. GaN deposition within the trench etched on the Si(100) substrate occurred via diffusion and mass-transport limited mechanism. This resulted in a differential GaN layer thickness from the top (i.e., 1.8??m) of the trench to the bottom (i.e., 0.3??m) of the trench. Mixed-type dislocation constituted about 80% of the total dislocations in the GaN grown on the inclined Si(111) surface etched on Si(100)

  16. Cluster characters II: A multiplication formula Let C be a Hom-finite triangulated 2-CalabiYau category with a cluster tilting object. Under

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cluster characters II: A multiplication formula Yann Palu Abstract Let C be a Hom categories of modules over a preprojective algebra of Dynkin type, we prove a multiplication formula for the cluster character associated with any cluster tilting object. This formula generalizes those obtained

  17. PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan and Ilya Tsvankin , Center for Wave Phenomena, Colorado School of Mines (CSM),

    E-Print Network [OSTI]

    PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan and Ilya Tsvankin , Center for Wave Phenomena, Colorado School of Mines (CSM), Mike Batzle, Center for Rock Abuse, CSM, Kasper van Wijk, Physical Acoustics Laboratory, CSM, and Matt Haney, Center for Wave Phenomena

  18. Measurements Versus Predictions for the Static and Dynamic Characteristics of a Four-pad Rocker-pivot, Tilting-pad Journal Bearing

    E-Print Network [OSTI]

    Tschoepe, David 1987-

    2012-08-16T23:59:59.000Z

    Measured and predicted static and dynamic characteristics are provided for a four-pad, rocker-pivot, tilting-pad journal bearing in the load-on-pad and load-between-pad orientations. The bearing has the following characteristics: 4 pads, .57 pad...

  19. Measured and predicted rotordynamic coefficients and static performance of a rocker-pivot, tilt pad bearing in load-on-pad and load-between-pad configurations

    E-Print Network [OSTI]

    Carter, Clint Ryan

    2009-06-02T23:59:59.000Z

    This thesis presents the static and dynamic performance data for a 5 pad tilting pad bearing in both the load-on-pad (LOP) and the load-between-pad (LBP) configurations over a variety of different loads and speeds. The bearing tested was an Orion...

  20. In-plane ultrasonic velocity measurement of longitudinal and shear waves in the machine direction with transducers in rotating wheels

    DOE Patents [OSTI]

    Hall, Maclin S. (Marietta, GA); Jackson, Theodore G. (Atlanta, GA); Knerr, Christopher (Lawrenceville, GA)

    1998-02-17T23:59:59.000Z

    An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like. In addition to velocity measurements of ultrasonic signals in the plane of the web in the MD and CD, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronously driven wheels or cylinders, thus eliminating undue transducer wear due to any speed differences between the transducers and the web. In order to provide relatively constant contact force between the transducers and the webs, the transducers are mounted in a sensor housings which include a spring for biasing the transducer radially outwardly. The sensor housings are adapted to be easily and conveniently mounted to the carrier to provide a relatively constant contact force between the transducers and the moving web.

  1. In-plane ultrasonic velocity measurement of longitudinal and shear waves in the machine direction with transducers in rotating wheels

    DOE Patents [OSTI]

    Hall, M.S.; Jackson, T.G.; Knerr, C.

    1998-02-17T23:59:59.000Z

    An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like. In addition to velocity measurements of ultrasonic signals in the plane of the web in the MD and CD, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronously driven wheels or cylinders, thus eliminating undue transducer wear due to any speed differences between the transducers and the web. In order to provide relatively constant contact force between the transducers and the webs, the transducers are mounted in a sensor housings which include a spring for biasing the transducer radially outwardly. The sensor housings are adapted to be easily and conveniently mounted to the carrier to provide a relatively constant contact force between the transducers and the moving web. 37 figs.

  2. National Beef Quality Audit-2011: In-Plant Survey of Targeted Carcass Characteristics Related to Quality, Quantity, Value, and Marketing of Fed Steers and Heifers

    E-Print Network [OSTI]

    Moore, Melanie 1989-

    2012-11-26T23:59:59.000Z

    selected randomly for the survey. Carcass evaluation for the cooler assessment of this study revealed these traits and frequencies: steer (63.5%), heifer (36.4%), cow (0.1%), and bullock (0.03%) sex classes; dark-cutters (3.2%); blood splash (0.3%); yellow...

  3. Evaluation of USDA feeder calf grades and health status of steers and their impact on live and carcass performance in south Texas

    E-Print Network [OSTI]

    Groschke, David Wayne

    2005-11-01T23:59:59.000Z

    In 2003-2004, the Texas A&M University Ranch to Rail South program evaluated 430 steers in Edroy, TX. Data were analyzed on several traits, but feeder calf frame and muscle grades and health status were emphasized. Muscle thickness grade (M), frame...

  4. Evaluation of adrenal function, growth, carcass characteristics, blood metabolites, hematological and immune parameters in Angus, Brahman, Bonsmara X Angus and Bonsmara beef steers

    E-Print Network [OSTI]

    Jacobs Hollenbeck, Regina

    2006-10-30T23:59:59.000Z

    ...........................25 Comparison of Plasma Cortisol and Average Daily Gain ................26 Comparison of Anterior Pituitary Responsiveness to CRH ..............27 Comparison of Heat Stress Parameters ............................................30...............................................................................33 viii CHAPTER age IV RESULTS: ASSESSMENT OF THE HPA AXIS Effect of Exogenous ACTH on Plasma Concentration of Cortisol in Angus and Brahman Steers .....................................................36 Effect of Exogenous ACTH...

  5. Effects of Residual Feed Intake Classification on Feed Efficiency, Feeding Behavior, Carcass Traits, and Net Revenue in Angus-Based Composite Steers

    E-Print Network [OSTI]

    Walter, Joel

    2012-02-14T23:59:59.000Z

    ) and high (n = 158) RFI groups. Following the feed-intake measurement periods, steers were fed the same diet in group pens and harvested at an average backfat thickness of 1.14 cm. Net revenue (NR) was calculated as carcass value minus feeder calf, yardage...

  6. Carcass characteristics, fatty acids, stearoyl-coa desaturase gene expression and sensory evaluation of calf-fed and yearling-fed angus steers

    E-Print Network [OSTI]

    Brooks, Matthew Alan

    2009-05-15T23:59:59.000Z

    body weight, their MUFA:SFA ratio will be the same regardless of being calf-fed (CF) or yearling-fed (YF). Twenty-four Angus cattle were acquired for this study. Cattle were slaughtered at weaning at 8 mo of age (SFCF, n=4), eight steers were assigned...

  7. 218 IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION, VOL. 17, NO. 2, APRIL 2001 Fig. 7. Simulated steering response for bicycle and nonholonomic models for

    E-Print Network [OSTI]

    Bobrow, James E.

    , "Automatic steering system for an underground mine haul truck," Master's, Colorado School of Mines, 1992. [4-Whyte, and M. Dalziel, "Auto- mated LHD's and underground haulage trucks," Australian Journal of Mining, 1999. Roberts and P. Corke, "Automation of underground truck haulage," in International Symposium on Mine

  8. Characterization of Three-dimensional Steering for Helical Swimmers Tiantian Xu1, Gilgueng Hwang2, Nicolas Andreff3 and Stephane Regnier1

    E-Print Network [OSTI]

    magnetic field, which convert rotary motion to linear motion, are approaches to propulsion at low Reynolds, Nicolas Andreff3 and St´ephane R´egnier1 Abstract-- Helical microswimmers capable of propulsion at low lying on the swimming characteristics of both linear propulsion and steering. Although the linear

  9. Well-to-wheels analysis of energy use and greenhouse gas emissions of plug-in hybrid electric vehicles.

    SciTech Connect (OSTI)

    Elgowainy, A.; Han, J.; Poch, L.; Wang, M.; Vyas, A.; Mahalik, M.; Rousseau, A.

    2010-06-14T23:59:59.000Z

    Plug-in hybrid electric vehicles (PHEVs) are being developed for mass production by the automotive industry. PHEVs have been touted for their potential to reduce the US transportation sector's dependence on petroleum and cut greenhouse gas (GHG) emissions by (1) using off-peak excess electric generation capacity and (2) increasing vehicles energy efficiency. A well-to-wheels (WTW) analysis - which examines energy use and emissions from primary energy source through vehicle operation - can help researchers better understand the impact of the upstream mix of electricity generation technologies for PHEV recharging, as well as the powertrain technology and fuel sources for PHEVs. For the WTW analysis, Argonne National Laboratory researchers used the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model developed by Argonne to compare the WTW energy use and GHG emissions associated with various transportation technologies to those associated with PHEVs. Argonne researchers estimated the fuel economy and electricity use of PHEVs and alternative fuel/vehicle systems by using the Powertrain System Analysis Toolkit (PSAT) model. They examined two PHEV designs: the power-split configuration and the series configuration. The first is a parallel hybrid configuration in which the engine and the electric motor are connected to a single mechanical transmission that incorporates a power-split device that allows for parallel power paths - mechanical and electrical - from the engine to the wheels, allowing the engine and the electric motor to share the power during acceleration. In the second configuration, the engine powers a generator, which charges a battery that is used by the electric motor to propel the vehicle; thus, the engine never directly powers the vehicle's transmission. The power-split configuration was adopted for PHEVs with a 10- and 20-mile electric range because they require frequent use of the engine for acceleration and to provide energy when the battery is depleted, while the series configuration was adopted for PHEVs with a 30- and 40-mile electric range because they rely mostly on electrical power for propulsion. Argonne researchers calculated the equivalent on-road (real-world) fuel economy on the basis of U.S. Environmental Protection Agency miles per gallon (mpg)-based formulas. The reduction in fuel economy attributable to the on-road adjustment formula was capped at 30% for advanced vehicle systems (e.g., PHEVs, fuel cell vehicles [FCVs], hybrid electric vehicles [HEVs], and battery-powered electric vehicles [BEVs]). Simulations for calendar year 2020 with model year 2015 mid-size vehicles were chosen for this analysis to address the implications of PHEVs within a reasonable timeframe after their likely introduction over the next few years. For the WTW analysis, Argonne assumed a PHEV market penetration of 10% by 2020 in order to examine the impact of significant PHEV loading on the utility power sector. Technological improvement with medium uncertainty for each vehicle was also assumed for the analysis. Argonne employed detailed dispatch models to simulate the electric power systems in four major regions of the US: the New England Independent System Operator, the New York Independent System Operator, the State of Illinois, and the Western Electric Coordinating Council. Argonne also evaluated the US average generation mix and renewable generation of electricity for PHEV and BEV recharging scenarios to show the effects of these generation mixes on PHEV WTW results. Argonne's GREET model was designed to examine the WTW energy use and GHG emissions for PHEVs and BEVs, as well as FCVs, regular HEVs, and conventional gasoline internal combustion engine vehicles (ICEVs). WTW results are reported for charge-depleting (CD) operation of PHEVs under different recharging scenarios. The combined WTW results of CD and charge-sustaining (CS) PHEV operations (using the utility factor method) were also examined and reported. According to the utility factor method, the share of vehicle miles trav

  10. Computing in High Energy and Nuclear Physics CHEP03, La Jolla, California, USA, 24-28 March 2003 1 The Algorithm Steering and Trigger Decision mechanism of the ATLAS

    E-Print Network [OSTI]

    Anjos, André

    TUGT007 The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger G. Comune is limited to detector geometrical Regions of Interest where high momentum signals are detected. The proposed

  11. Hydrogen Pathways: Updated Cost, Well-to-Wheels Energy Use, and Emissions for the Current Technology Status of Ten Hydrogen Production, Delivery, and Distribution Scenarios

    SciTech Connect (OSTI)

    Ramsden, T.; Ruth, M.; Diakov, V.; Laffen, M.; Timbario, T. A.

    2013-03-01T23:59:59.000Z

    This report describes a life-cycle assessment conducted by the National Renewable Energy Laboratory (NREL) of 10 hydrogen production, delivery, dispensing, and use pathways that were evaluated for cost, energy use, and greenhouse gas (GHG) emissions. This evaluation updates and expands on a previous assessment of seven pathways conducted in 2009. This study summarizes key results, parameters, and sensitivities to those parameters for the 10 hydrogen pathways, reporting on the levelized cost of hydrogen in 2007 U.S. dollars as well as life-cycle well-to-wheels energy use and GHG emissions associated with the pathways.

  12. Strain Accommodation By Facile WO6 Octahedral Distortion and Tilting During WO3 Heteroepitaxy on SrTiO3(001)

    SciTech Connect (OSTI)

    Du, Yingge; Gu, Meng; Varga, Tamas; Wang, Chong M.; Bowden, Mark E.; Chambers, Scott A.

    2014-08-27T23:59:59.000Z

    In this paper, we show that compared to other BO6 octahedra in ABO3 structured perovskite oxides, the WO6 octahedra in tungsten trioxide (WO3) can withstand a much larger degree of distortion and tilting to accommodate interfacial strain, which in turn strongly impact the nucleation, structure, and defect formation during the epitaxial growth of WO3 on SrTiO3(001). A meta-stable tetragonal phase can be stabilized by epitaxy and a thickness dependent phase transition (tetragonal to monoclinic) is observed. In contrast to misfit dislocations to accommodate the interfacial stain, the facial WO6 octahedral distortion and tilting give rise to three types of planar defects that affect more than 15 monolayers from the interface. These atomically resolved, unusual interfacial defects may significantly alter the electronic, electrochromic, and mechanical properties of the epitaxial films.

  13. Magnetoresistivity and acoustoelectronic effects in a tilted magnetic field in p-Si/SiGe/Si structures with an anisotropic g factor

    SciTech Connect (OSTI)

    Drichko, I. L., E-mail: Irina.L.Drichko@mail.ioffe.ru; Smirnov, I. Yu. [Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation); Suslov, A. V. [National High Magnetic Field Laboratory (United States); Mironov, O. A. [University of Warwick Science Park, Warwick SEMINANO R and D Centre (United Kingdom); Leadley, D. R. [University of Warwick Science Park, Department of Physics (United Kingdom)

    2010-09-15T23:59:59.000Z

    Magnetoresistivity {rho}{sub xx} and {rho}{sub xy} and the acoustoelectronic effects are measured in p-Si/SiGe/Si with an impurity concentration p = 1.99 x 10{sup 11} cm{sup -2} in the temperature range 0.3-2.0 K and an tilted magnetic field up to 18 T. The dependence of the effective g factor on the angle of magnetic field tilt {theta} to the normal to the plane of a two-dimensional p-Si/SiGe/Si channel is determined. A first-order ferromagnet-paramagnet phase transition is observed in the magnetic fields corresponding to a filling factor {nu} = 2 at {theta} {approx} 59{sup o}-60{sup o}.

  14. Magnetoresistivity in a tilted magnetic field in p-Si/SiGe/Si heterostructures with an anisotropic g-factor. Part II

    SciTech Connect (OSTI)

    Drichko, I. L.; Smirnov, I. Yu., E-mail: ivan.smirnov@mail.ioffe.ru [Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation); Suslov, A. V. [National High Magnetic Field Laboratory (United States); Mironov, O. A. [University of Warwick Science Park, Warwick SEMINANO R and D Centre (United Kingdom); Leadley, D. R. [University of Warwick, Department of Physics (United Kingdom)

    2012-09-15T23:59:59.000Z

    The magnetoresistance components {rho}xx and {rho}xy are measured in two p-Si/SiGe/Si quantum wells that have an anisotropic g-factor in a tilted magnetic field as a function of the temperature, field, and tilt angle. Activation energy measurements demonstrate the existence of a ferromagnetic-paramagnetic (F-P) transition for the sample with the hole density p = 2 Multiplication-Sign 10{sup 11} cm{sup -2}. This transition is due to the crossing of the 0{up_arrow} and 1{down_arrow} Landau levels. However, in another sample with p = 7.2 Multiplication-Sign 10{sup 10} cm{sup -2}, the 0{up_arrow} and 1{down_arrow} Landau levels coincide for angles {theta} = 0-70 Degree-Sign . Only for {theta} > 70 Degree-Sign do the levels start to diverge which, in turn, results in the energy gap opening.

  15. Automatic recovery of missing amplitudes and phases in tilt-limited electron crystallography of two-dimensional crystals

    SciTech Connect (OSTI)

    Gipson, Bryant R.; Stahlberg, Henning [Center for Cellular Imaging and Nano Analytics (C-CINA), Biozentrum, University Basel, WRO-1058 Mattenstrasse 26, CH-4058 Basel (Switzerland); Masiel, Daniel J.; Browning, Nigel D. [Department of Chemical Engineering and Materials Sciences, University of California at Davis, Davis, California 95616 (United States); Spence, John [Department of Physics, Arizona State University, Tempe, Arizona 85287 (United States); Mitsuoka, Kaoru [Biomedicinal Information Research Center (BIRC), National Institute of Advanced Industrial Science and Technology (AIST), 2-3-26, Aomi, Koto-ku, Tokyo 135-0064 (Japan)

    2011-07-15T23:59:59.000Z

    Electron crystallography of 2D protein crystals provides a powerful tool for the determination of membrane protein structure. In this method, data is acquired in the Fourier domain as randomly sampled, uncoupled, amplitudes and phases. Due to physical constraints on specimen tilting, those Fourier data show a vast un-sampled ''missing cone'' of information, producing resolution loss in the direction perpendicular to the membrane plane. Based on the flexible language of projection onto sets, we provide a full solution for these problems with a projective constraint optimization algorithm that, for sufficiently oversampled data, produces complete recovery of unmeasured data in the missing cone. We apply this method to an experimental data set of Bacteriorhodopsin and show that, in addition to producing superior results compared to traditional reconstruction methods, full, reproducible, recovery of the missing cone from noisy data is possible. Finally, we present an automatic implementation of the refinement routine as open source, freely distributed, software that will be included in our 2dx software package.

  16. Investigation of Copper Segregation to the S5(310)/[001] Symmetric Tilt Grain Boundary (STGB) in Aluminum

    SciTech Connect (OSTI)

    Plitzko, J.M.; Campbell, G.H.; King, W.E.; Foiles, S.M.

    1999-11-15T23:59:59.000Z

    The {Sigma}5 (310)/[001] symmetric tilt grain boundary (STGB) in the face centered cubic (FCC) metal aluminum with 1at% copper has been studied. The model grain boundary has been fabricated by ultra-high vacuum diffusion bonding of alloy single crystals. The segregation of the copper has been encouraged by annealing the sample after bonding at 200 C. TEM samples of this FCC-material were prepared with a new low voltage ion mill under very low angles. The atomic structure of the {Sigma}5 (310)/[001] STGB for this system was modeled with electronic structure calculations. These theoretical calculations of this interface structure indicate that the Cu atoms segregate to distinct sites at the interface. High resolution electron microscopy (HRTEM) and analytical electron microscopy including electron energy spectroscopic imaging and X-ray energy dispersive spectrometry have been used to explore the segregation to the grain boundary. The HRTEM images and the analytical measurements were performed using different kinds of microscopes, including a Philips CM300 FEG equipped with an imaging energy filter. The amount of the segregated species at the interface was quantified in a preliminary way. To determine the atomic positions of the segregated atoms at the interface, HRTEM coupled with image simulation and a first attempt of a holographic reconstruction from a through-focal series have been used.

  17. The Wheel Turns 

    E-Print Network [OSTI]

    Piacentini, Valerie

    1977-01-01T23:59:59.000Z

    in the street. IIJim, corne herso I wBnt to telk to yoU.'I Kirk cems over and knelt 8t Spock's feet, resting hL.;) erms on th(:) Vul can IS knee-3 9 end looking up anxiously into his feee. "What is it, Spack? Have I done something '"rang?" "Of course not...

  18. The Wheel Turns

    E-Print Network [OSTI]

    Piacentini, Valerie

    1977-01-01T23:59:59.000Z

    in the street. IIJim, corne herso I wBnt to telk to yoU.'I Kirk cems over and knelt 8t Spock's feet, resting hL.;) erms on th(:) Vul can IS knee-3 9 end looking up anxiously into his feee. "What is it, Spack? Have I done something '"rang?" "Of course not...

  19. The Wheel of Fate

    E-Print Network [OSTI]

    Piacentini, Valerie, with poetry by Sheila Clark

    1980-01-01T23:59:59.000Z

    .r relati.onshi.p had altered. Spock found it came naturally to think of 'Jim'. He spoke the name aloud, and it fell eas,ily from his lips, a name he rarely used in normal circumstances. Now he was in command; on Spock alone rested the responsibility... courage faltered. Then his customary cool logiC reasserted itself. It must be done, therefore it would be done; Jim's safety depended on it, and he would not permit himself to fail. He began to plan. 'l'hey must leave this house soon. It had pr...

  20. Of Wings and Wheels 

    E-Print Network [OSTI]

    Wood, Alice

    2007-01-01T23:59:59.000Z

    . Cherubim are intimately connected with the manifestation of Yahweh and have an apotropaic function in relation to sacred space. They are envisaged with one face and one set of wings. Ps 18:11 = 2 Sam 22:11 suggests that they are quadrupedal...

  1. Well-to-wheels energy use and greenhouse gas emissions analysis of plug-in hybrid electric vehicles.

    SciTech Connect (OSTI)

    Elgowainy, A.; Burnham, A.; Wang, M.; Molburg, J.; Rousseau, A.; Energy Systems

    2009-03-31T23:59:59.000Z

    Researchers at Argonne National Laboratory expanded the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model and incorporated the fuel economy and electricity use of alternative fuel/vehicle systems simulated by the Powertrain System Analysis Toolkit (PSAT) to conduct a well-to-wheels (WTW) analysis of energy use and greenhouse gas (GHG) emissions of plug-in hybrid electric vehicles (PHEVs). The WTW results were separately calculated for the blended charge-depleting (CD) and charge-sustaining (CS) modes of PHEV operation and then combined by using a weighting factor that represented the CD vehicle-miles-traveled (VMT) share. As indicated by PSAT simulations of the CD operation, grid electricity accounted for a share of the vehicle's total energy use, ranging from 6% for a PHEV 10 to 24% for a PHEV 40, based on CD VMT shares of 23% and 63%, respectively. In addition to the PHEV's fuel economy and type of on-board fuel, the marginal electricity generation mix used to charge the vehicle impacted the WTW results, especially GHG emissions. Three North American Electric Reliability Corporation regions (4, 6, and 13) were selected for this analysis, because they encompassed large metropolitan areas (Illinois, New York, and California, respectively) and provided a significant variation of marginal generation mixes. The WTW results were also reported for the U.S. generation mix and renewable electricity to examine cases of average and clean mixes, respectively. For an all-electric range (AER) between 10 mi and 40 mi, PHEVs that employed petroleum fuels (gasoline and diesel), a blend of 85% ethanol and 15% gasoline (E85), and hydrogen were shown to offer a 40-60%, 70-90%, and more than 90% reduction in petroleum energy use and a 30-60%, 40-80%, and 10-100% reduction in GHG emissions, respectively, relative to an internal combustion engine vehicle that used gasoline. The spread of WTW GHG emissions among the different fuel production technologies and grid generation mixes was wider than the spread of petroleum energy use, mainly due to the diverse fuel production technologies and feedstock sources for the fuels considered in this analysis. The PHEVs offered reductions in petroleum energy use as compared with regular hybrid electric vehicles (HEVs). More petroleum energy savings were realized as the AER increased, except when the marginal grid mix was dominated by oil-fired power generation. Similarly, more GHG emissions reductions were realized at higher AERs, except when the marginal grid generation mix was dominated by oil or coal. Electricity from renewable sources realized the largest reductions in petroleum energy use and GHG emissions for all PHEVs as the AER increased. The PHEVs that employ biomass-based fuels (e.g., biomass-E85 and -hydrogen) may not realize GHG emissions benefits over regular HEVs if the marginal generation mix is dominated by fossil sources. Uncertainties are associated with the adopted PHEV fuel consumption and marginal generation mix simulation results, which impact the WTW results and require further research. More disaggregate marginal generation data within control areas (where the actual dispatching occurs) and an improved dispatch modeling are needed to accurately assess the impact of PHEV electrification. The market penetration of the PHEVs, their total electric load, and their role as complements rather than replacements of regular HEVs are also uncertain. The effects of the number of daily charges, the time of charging, and the charging capacity have not been evaluated in this study. A more robust analysis of the VMT share of the CD operation is also needed.

  2. Cost of Ownership and Well-to-Wheels Carbon Emissions/Oil Use of Alternative Fuels and Advanced Light-Duty Vehicle Technologies

    SciTech Connect (OSTI)

    Elgowainy, Mr. Amgad [Argonne National Laboratory (ANL); Rousseau, Mr. Aymeric [Argonne National Laboratory (ANL); Wang, Mr. Michael [Argonne National Laboratory (ANL); Ruth, Mr. Mark [National Renewable Energy Laboratory (NREL); Andress, Mr. David [David Andress & Associates, Inc.; Ward, Jacob [U.S. Department of Energy; Joseck, Fred [U.S. Department of Energy; Nguyen, Tien [U.S. Department of Energy; Das, Sujit [ORNL

    2013-01-01T23:59:59.000Z

    The U.S. Department of Energy (DOE), Argonne National Laboratory (Argonne), and the National Renewable Energy Laboratory (NREL) updated their analysis of the well-to-wheels (WTW) greenhouse gases (GHG) emissions, petroleum use, and the cost of ownership (excluding insurance, maintenance, and miscellaneous fees) of vehicle technologies that have the potential to significantly reduce GHG emissions and petroleum consumption. The analyses focused on advanced light-duty vehicle (LDV) technologies such as plug-in hybrid, battery electric, and fuel cell electric vehicles. Besides gasoline and diesel, alternative fuels considered include natural gas, advanced biofuels, electricity, and hydrogen. The Argonne Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) and Autonomie models were used along with the Argonne and NREL H2A models.

  3. Vehicle Sideslip Estimation Design, implementation, and experimental validation

    E-Print Network [OSTI]

    Johansen, Tor Arne

    the wheel angular velocities, and a linear reference model taking the speed, steering wheel angle, Lars Imsland, Tor A. Johansen, Jens C. Kalkkuhl, and Avshalom Suissa Control systems that help the wheels from locking during hard braking, and they often have an electronic stability control system (ESC

  4. The effects of various levels of coastal bermudagrass and alfalfa hays on feedlot performance, carcass composition and net energy for finishing steers 

    E-Print Network [OSTI]

    Brown, William Emmett

    1978-01-01T23:59:59.000Z

    and protein. The caloric content of the initial and final carcass was estimated by employing factors of 9366 kcal per kg of fat and 5686 kcal per kg of protein. The NE requirements were calculated by dividing P the average gain in calories by the average... THE ALL-CONCENTRATE AND 100K COASTAL BERMUDAGRASS HAY DIETS 9 WATER, FAT AND PROTEIN CONTENT OF CARCASSES FROM STEERS FED 11 FEED MIXTURES FOR 121 DAYS 31 33 34 35 10 12 13 14 15 16 KEY TO STEPS INVOLVED IN CALCULATION OF CALORIC GAIN...

  5. RESEARCH ARTICLE Controlling speed and direction during interception

    E-Print Network [OSTI]

    control models fail to explain two important aspects of locomotor interception: (1) how steering and speed. Turning rate was controlled using a steering wheel and speed was controlled using a foot pedal that is characteristic of visually guided interception. Like models of other visually guided actions, such as steering

  6. Steering Committee Executive Sponsor,

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    , Academic Planning & Facilities Executive Vice Chancellor & Provost George W. Breslauer Members Hermalin, Representative, Budget and Interdepartmental Relations Chika Kondo, Undergraduate Student Implementation Project Team Functional Owner, Mara Hancock, Director, Educational Technology Services Members

  7. Experiments in Steer Feeding.

    E-Print Network [OSTI]

    Craig, John A. (John Alexander); Marshall, F. R. (Frederick Rupert)

    1904-01-01T23:59:59.000Z

    the means by which rice bran and rice polish are produced: ? After the rice has passed through several machines which remove the sticks, weeds, burrs, and other foreign matter usually gathered up in the fields, and getting it as clean as possible, it goes... these the rice is passed to the hulling machines, horizontal, semi-conical cylinders having metal? lic cores on shaft revolving at a high rate of speed. These cores have corrugations running from end to end in slightly screw form, which, while the grains...

  8. ARM - Steering Committee

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP :ProductsVaisalaAlaskaInstruments NSA RelatedPost-WorkshopStatus

  9. ARM - Steering Committee

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP :ProductsVaisalaAlaskaInstruments NSA

  10. ARM - Steering Committee

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP :ProductsVaisalaAlaskaInstruments NSASteering Committee Related Links

  11. FIELD TEST OF THE WATER-WHEEL IR (WIR) SPECTROMETER ON EVAPORATIVE SALT DEPOSITS AT TIBETAN PLATEAU. P. Sobron, J. J. Freeman, Alian Wang, Dept Earth and Planetary Sciences

    E-Print Network [OSTI]

    "contact survey", i.e., to install a WIR unit inside of a well set into the middle wheel of a pla- netary of WIR has a size of 10x7.5x6.5cm, mass of 450 grams, power consump- tion of 4W, and output data through transformed into a rugged, field portable NIR reflectance spectrometer that is able to operate in tough field

  12. Breaking the Crowther Limit: Combining Depth-Sectioning and Tilt Tomography for High-Resolution, Wide-Field 3D Reconstructions

    E-Print Network [OSTI]

    Hovden, Robert; Jiang, Yi; Wang, Deli; Yu, Yingchao; Abruna, Hector D; Elser, Veit; Muller, David A

    2014-01-01T23:59:59.000Z

    To date, high-resolution ( 6 nm) to appear blurred or missing. Here we demonstrate a three-dimensional imaging method that overcomes both these limits by combining through-focal depth sectioning and traditional tilt-series tomography to reconstruct extended objects, with high-resolution, in all three dimensions. The large convergence angle in aberration corrected instruments now becomes a benefit and not a hindrance to higher quality reconstructions. A through-focal reconstruction over a 390 nm 3D carbon support containing over one hundred dealloyed and nanoporous PtCu catalyst particles revealed with sub-nanometer detail the extensive and connected interior pore structure that is created by the dealloying instability.

  13. Observational evidence for a changing tilt of the accretion disk with respect to the orbital plane in Her X-1 over its 35 day cycle

    E-Print Network [OSTI]

    D. Klochkov; N. Shakura; K. Postnov; R. Staubert; J. Wilms; N. Ketsaris

    2007-11-12T23:59:59.000Z

    Analysis and interpretation of the Her X-1 X-ray light curve obtained with the ASM onbord RXTE over the period 1996 February to 2004 September is presented. We report that the features found previously in the averaged X-ray lightcurve are confirmed by the new RXTE/ASM data. In particular, anomalous dips and post-eclipse recoveries in two successive orbits in the short-on state are found to be prominent and stable details of the light curve. We argue that a change of the tilt of the accretion disk over the 35-day period is necessary to account for these features and show that our numerical model can explain such a behavior of the disk and reproduce the observed details of the light curve.

  14. Anderson-Gregory; Constable-Steven; Orcutt-John; Staudigel-Hubert; Tolstoy-Maya; Wyatt-Frank-K, Observing seafloor tilt on Axial Segment, Juan de Fuca Ridge. Eos, Transactions, American Geophysical

    E-Print Network [OSTI]

    Menke, William

    -Frank-K, Observing seafloor tilt on Axial Segment, Juan de Fuca Ridge. Eos, Transactions, American Geophysical Union de Fuca Ridge. Geophysical Research Letters.22; 2, Pages 147-150. 1995. Baker-Edward-T; Fox eruption of Axial Volcano, Juan de Fuca Ridge. Geophysical Research Letters.26; 23, Pages 3445-3448. 1999

  15. JOURNAL DE PHYSIQUE Colloque C1, supplgment au no2, Tome 40,fgvrier 1979,page C1-295 POLARIZATION MEASUREMENTS OF TWO He I TRANSITIONS USING BEAM-TILTED-FOIL EXCITATION*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    these measure- ments, for at least two transitions, to try to establish a trend through as large a foil tilt be rotated by a step- ping motor with reproducibility of axis position of 0.1'. The entrance and exit slits acquisition and experimental control have been previously described.' Nominally 5 ug/cm2 carbon foils were

  16. Facilities Services No Idling Policy 1. Applicability

    E-Print Network [OSTI]

    Dyer, Bill

    not warm the wheel bearings, steering, transmission and tires - only driving does this. 3.6. Idling a diesel-powered engine for over 30 seconds uses more fuel than restarting the engine. 3.7. Idling

  17. Programmable surfaces

    E-Print Network [OSTI]

    Sun, Amy (Amy Teh-Yu)

    2012-01-01T23:59:59.000Z

    Robotic vehicles walk on legs, roll on wheels, are pulled by tracks, pushed by propellers, lifted by wings, and steered by rudders. All of these systems share the common character of momentum transport across their surfaces. ...

  18. ENVIRONMENTAL REVIEW FOR CATEGORICAL EXCLUSION DETERMINATION

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

    backfilling, and adding new hardware. The equipment utilized includes 4-wheel drive pick-ups, rubber-tired motor diggerderrick, manlift, skid-steer loader, pole trailer, and line...

  19. BEAM TILTED CORRELATIONS Frank Vignola

    E-Print Network [OSTI]

    Oregon, University of

    from the modules, module temperature, ambient temperature, wind speed, incident solar radiation under standardized operation conditions (25 Celsius and 1000 watts/meter2 incident solar radiation and comprehensive solar radiation data. Specifically, these models were designed to use the National Solar Radiation

  20. Safety-critical design of the Generic Driving Actuator

    E-Print Network [OSTI]

    Cuijpers, Pieter

    the same interfaces as a human driver does: it controls the steering wheel, the brake pedal and the throttle pedal. The GDA consists of three robots to control each interface: a steering robot and two pedal- quirements a software model is built in the proces-algebraic language µCRL. The requirements

  1. Autonomous Car Fuzzy Control Modeled by Iterative Genetic Enrique Onieva, Javier Alonso, Joshue Perez, Vicente Milanes, Teresa de Pedro

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Autonomous Car Fuzzy Control Modeled by Iterative Genetic Algorithms Enrique Onieva, Javier Alonso. The unmanned control of the steering wheel is one of the most important challenges faced by researchers in this area. This paper presents a method of automatically adjusting a fuzzy controller to manage the steering

  2. Passivity Analysis and Design of Passivity-Based Controllers for Trajectory Tracking at High Speed of Autonomous Vehicles

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    with respect to a given reference trajectory. The control input is the steering angle and the output control consists on handling the vehicle using the steering wheel to follow the reference trajectory control [10] and many others. On the other hand, Model Predictive Control (MPC) appears to be well suited

  3. Complex Embedded Automotive Control Systems DaimlerChrysler

    E-Print Network [OSTI]

    Duffy, Ken

    progressed along several lines of inquiry, it appears to be the case that almost no effort has been devoted equipped with active systems (4-wheel- steering, active suspension, active brakes, etc.) may, in principle and rear steer-by-wire, brake-by-wire and active suspensions. An integrated chassis controller would com

  4. Tilt generation in step-graded In{sub x}Ga{sub 1-x}As metamorphic pseudosubstrate on a singular GaAs substrate using a low-temperature grown InGaP interlayer

    SciTech Connect (OSTI)

    Ghanad Tavakoli, Shahram; Hulko, Oksana; Thompson, David A. [Department of Engineering Physics, 1280 Main Street West, Hamilton, Ontario L8S 4 L7 (Canada)

    2008-05-15T23:59:59.000Z

    Metamorphic pseudosubstrates of In{sub 0.42}Ga{sub 0.58}As were grown by molecular beam epitaxy using step-graded In{sub x}Ga{sub 1-x}As buffer layers grown either directly on a (001) GaAs substrate or on a GaAs substrate overgrown with a layer of low-temperature grown In{sub 0.51}Ga{sub 0.49}P (LT-InGaP). The structures were examined using x-ray reciprocal space mapping to determine the characteristics of the pseudosubstrates and buffer layers. For the sample grown on the LT-InGaP layer, the pseudosubstrate exhibited an asymmetric tilt around [110] toward the [110] direction. Weak-beam dark-field electron imaging shows an imbalance of misfit dislocations with opposite sign Burgers vector. An explanation for this tilt is given and it is suggested that it may be responsible for the improved quality of epitaxial layers grown on such pseudosubstrates.

  5. DOE Privacy Steering Committee Charter

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014ContributingDOE Contract DOE Internationalwith 17Oof

  6. Dynamical steering in an electron transfer surface reaction: Oriented NO(v = 3, 0.08 < E{sub i} < 0.89 eV) relaxation in collisions with a Au(111) surface

    SciTech Connect (OSTI)

    Bartels, Nils; Golibrzuch, Kai; Bartels, Christof; Schäfer, Tim, E-mail: tschaef4@gwdg.de [Institute of Physical Chemistry, Georg-August University of Göttingen, Tammannstraße 6, 37077 Göttingen (Germany)] [Institute of Physical Chemistry, Georg-August University of Göttingen, Tammannstraße 6, 37077 Göttingen (Germany); Chen, Li [Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077 Göttingen (Germany)] [Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077 Göttingen (Germany); Auerbach, Daniel J.; Wodtke, Alec M. [Institute of Physical Chemistry, Georg-August University of Göttingen, Tammannstraße 6, 37077 Göttingen (Germany) [Institute of Physical Chemistry, Georg-August University of Göttingen, Tammannstraße 6, 37077 Göttingen (Germany); Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077 Göttingen (Germany)

    2014-02-07T23:59:59.000Z

    We report measurements of the incidence translational energy dependence of steric effects in collisions of NO(v = 3) molecules with a Au(111) surface using a recently developed technique to orient beams of vibrationally excited NO molecules at incidence energies of translation between 0.08 and 0.89 eV. Incidence orientation dependent vibrational state distributions of scattered molecules are detected by means of resonance enhanced multiphoton ionization spectroscopy. Molecules oriented with the N-end towards the surface exhibit a higher vibrational relaxation probability than those oriented with the O-end towards the surface. This strong orientation dependence arises from the orientation dependence of the underlying electron transfer reaction responsible for the vibrational relaxation. At reduced incidence translational energy, we observe a reduced steric effect. This reflects dynamical steering and re-orientation of the NO molecule upon its approach to the surface.

  7. Wheels of Darkness and Other Stories

    E-Print Network [OSTI]

    Roy, E.; Kurz, R.

    rested, eyes open, watching his lover sleep. Sandy's arm lay next to his. Long, slim, tanned flesh. Young flesh. His arm looked tired next to that one. Skin paler, sagging, a little grey. Old. A scuffling sound came from the door. Richard turned his... eyes flashed at him. "Where? In the apartment, or in your life?" "Whichever." Richard felt old, locking the scrapbook away. He felt tired. "Look. We had some good times ... " He couldn't finish that cliche either. He dropped his head, massaging his...

  8. Qualifying Facility Wheeling Task Force-- Status Report

    E-Print Network [OSTI]

    Panjavan, S.

    . P.O. Box 1188 Houston, TX 77001 Mr. Dan Hill Coastal Refining Company Nine Greenway Plaza Houston, TX 77046 PUCT ELECTRIC DIVISION STAFF MEMBERS 7800 Shoal Creek Blvd., Suite 400n Austin, TX 78757 Mr. Hal Hughes, Manager of Engineering...

  9. Bradbury Science Museum - Science on Wheels

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccess Stories Site MapSolarAbout Neutrinos2.769 2.813Bradbury

  10. Geometric Feasibility of ITER Air Cushion Remote Handling Casks and Extensions for Free

    E-Print Network [OSTI]

    Ribeiro,Isabel

    -NET/97-460 (EFDA) | 1998 From lift to laydown hall Path: Cubic Spiral wheels following different paths to fully explore the rhombic configuration From lift to VV gallery Path: Cubic Spiral #12;Geometric Cask artificial landmarks Laser scanner steering sensor guiding tape deformed magnetic field Automated

  11. On Time For Sure When a computer takes forever to load a website, it may be annoying, but it is

    E-Print Network [OSTI]

    Falge, Eva

    is undervalued ­ at least in computer science. If the airbag in a car is triggered a few milliseconds too late: The airbag must be inflated before the driver's head hits the steering wheel. Its control unit must therefore ARE LESS PREDICTABLE In the case of the airbag, the maximum permitted period of computation is de- rived

  12. Subcortical locus of temporal coupling in the bimanual movements of a callosotomy patient

    E-Print Network [OSTI]

    Ivry, Rich

    or in driving, one hand can be used to control the steering wheel while the other is used to move the stick that it persists following callosotomy is inconsistent with models that attribute bimanual coordination in these patients to the control of a single hemisphere. Rather, the results suggest that motor commands from

  13. Control for an Autonomous Bicycle Neil H. Getz Jerrold E. Marsden

    E-Print Network [OSTI]

    Marsden, Jerrold

    , using steering and rear-wheel torque, causes a model of a riderless bicycle to recover its balance from the stability of bicycles and motorcycles under a nominal linear model of rider control (See Hand 1] for a sur trajectories while maintaining balance. Control of balance and roll-angle tracking for the bicycle model we use

  14. Sliding Mode Control of EV Electric Differential System

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . The proposed sliding mode control approach is evaluated on an EV global model taking into account the vehicle is then used to control the speed variation of the wheels during steering maneuvers [1]. The natural ability400 1 Sliding Mode Control of EV Electric Differential System A. Haddoun, M. E. H. Benbouzid, D

  15. Copyrighted Material CHAPTER ONE

    E-Print Network [OSTI]

    Landweber, Laura

    to negotiate a trade-off between wealth and control, between building financial value and maintaining a grip on the steering wheel.Adding further complexity,founders' early choices can have delayed and unexpected, business model, and industry segment are not important. We

  16. A new approach to lane guidance systems Andreas Eidehall Fredrik Gustafsson

    E-Print Network [OSTI]

    Gustafsson, Fredrik

    for estimating these parameters is used and the performance is improved by introducing a non-linear model which of test scenarios. It is also able to take control of the vehicle and put it in a safe position the lane markings with a vision system. They use a buzzer or a steering wheel torque to indicate or avoid

  17. PUBLISHED IN IEEE/ASME TRANSACTIONS ON MECHATRONICS, VOL. 14, NO. 4, AUGUST 2009 1 Doppler-based Ground Speed Sensor Fusion and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . In a previous work [5], we proposed a model-based con- troler applied to a skid-steering autonomous mobile robot-based Ground Speed Sensor Fusion and Slip Control for a Wheeled Rover Damien Lhomme-Desages, Christophe Grand and traction forces can allow to achieve a better control. In order to implement a control architecture based

  18. Winter Car Kit Suggested items to keep in your car

    E-Print Network [OSTI]

    Myers, Lawrence C.

    Small sack of sand for generating traction under wheels Small shovel Small tools (pliers, wrench. Even if you maintain control of your car, not everyone else will. So, don't get lulled into a false sharply will only lock you into a skid. If you can't get control of your car, it is better to steer

  19. Haptic Models of an Automotive Turn-Signal Switch: Identification and Playback Results

    E-Print Network [OSTI]

    Hollerbach, John M.

    Haptic Models of an Automotive Turn-Signal Switch: Identification and Playback Results Mark B of virtual environments. This paper addresses the problem of modeling the feel of an automotive turn- signal would require accurate models of the primary automotive controls, including the steering wheel, gear

  20. By moving the front wheels in and back wheels out, the rover can

    E-Print Network [OSTI]

    Withers, Paul

    . Solar arrays Provide power for driving the rover, operating the science instruments, heating. The images provided the sci- entists with their first glimpse of their home away from home -- an area they will study for months. Scientists are thrilled with what they have seen. "Home sweet home," says Steve

  1. Active infrared materials for beam steering.

    SciTech Connect (OSTI)

    Brener, Igal; Reno, John Louis; Passmore, Brandon Scott; Gin, Aaron V.; Shaner, Eric Arthur; Miao, Xiaoyu; Barrick, Todd A.

    2010-10-01T23:59:59.000Z

    The mid-infrared (mid-IR, 3 {micro}m -12 {micro}m) is a highly desirable spectral range for imaging and environmental sensing. We propose to develop a new class of mid-IR devices, based on plasmonic and metamaterial concepts, that are dynamically controlled by tunable semiconductor plasma resonances. It is well known that any material resonance (phonons, excitons, electron plasma) impacts dielectric properties; our primary challenge is to implement the tuning of a semiconductor plasma resonance with a voltage bias. We have demonstrated passive tuning of both plasmonic and metamaterial structures in the mid-IR using semiconductors plasmas. In the mid-IR, semiconductor carrier densities on the order of 5E17cm{sup -3} to 2E18cm{sup -3} are desirable for tuning effects. Gate control of carrier densities at the high end of this range is at or near the limit of what has been demonstrated in literature for transistor style devices. Combined with the fact that we are exploiting the optical properties of the device layers, rather than electrical, we are entering into interesting territory that has not been significantly explored to date.

  2. Suss-Ex Club Steering Group Meeting

    E-Print Network [OSTI]

    Sussex, University of

    Jennifer Platt Sept 2008 Jennifer Platt Nov 2008 Adrian Peasgood Feb 2009 Adrian Peasgood DARO agreement

  3. Suss-Ex Club Steering Group Meeting

    E-Print Network [OSTI]

    Sussex, University of

    of the meeting of 3 July 4. Matters arising 5. DARO agreement: Jennifer Platt to report (see overleaf) 6. Office entertainer' at New Venture Theatre now cancelled) 6 November. Bremf concert (Jennifer Platt) xx December Goldman; July, Adrian Peasgood Newsletter editors: June 2008 and September, Jennifer Platt; November

  4. Northwest Wind Integration Forum Policy Steering Committee

    E-Print Network [OSTI]

    Planning, Portland General Electric Company Mark Maher, CEO, Western Electricity Coordinating Council John Power and Conservation Council (Co-Chair) Steve Wright, Administrator and CEO, Bonneville Power Administration (Co-Chair) Paul Norman, Facilitator Jorge Carrasco, Superintendent, Seattle City Light Mike

  5. Steering Exact Penalty Methods for Optimization

    E-Print Network [OSTI]

    2006-02-25T23:59:59.000Z

    Feb 25, 2006 ... †Department of Electrical Engineering and Computer Science, Northwestern ... cessfully to solve mathematical programs with complementarity ...

  6. Manufacturing/Production Steering Committee Meeting

    SciTech Connect (OSTI)

    Nuckols, Matthew M. [Los Alamos National Laboratory; Hedley, Richard [AWE; McKamy, Dr. Jerry N. [NNSA

    2012-08-14T23:59:59.000Z

    JOWOG 30 has been reorganized and reinvigorated over the past couple of years to: (1) Drive an increased level of value and accomplishment; (2) Broaden engagement from LANL to both NNSA and full Weapons Complex; and (3) Incorporate the Strategic Technical Facilities Modernization (STFM) initiative into J30 structure. Recent/Ongoing Exchanges (2011 and 2012) - Current Exchanges entirely focused within the five J30 tasking areas: Capability Gap, Facility Re-Kit, Commissioning, Environmental Liabilities, Safety Basis. Future Exchanges (2012 to 2015) - Continue current tasks according to plan, include additional tasks/teams in areas such as Criticality Safety and Radiation Protection.

  7. Manufacturing/Production Steering Committee Meeting

    SciTech Connect (OSTI)

    Castro, Richard G. [Los Alamos National Laboratory

    2012-08-09T23:59:59.000Z

    This presentation discusses the following: (1) Nuclear Material Science - 22/1: Uranium Metallography and Metallurgy, 22/7: Plutonium Metallurgy, 22/8: Plutonium Corrosion; (2) Nuclear Materials Chemistry - 22/2: Actinide Chemistry, 22/7: Analytical Chemistry; (3) Tritium Science & Technology - 22/4: Tritium Science and Technology; and (4) Nuclear Materials Management - 22/5: Nuclear Materials Management, 22/9: Packaging, Storage and Transportation.

  8. Microhole Wireless Steering While Drilling System

    SciTech Connect (OSTI)

    John Macpherson; Thomas Gregg

    2007-12-31T23:59:59.000Z

    A background to Coiled Tubing Bottom Hole Assemblies (CT-BHA) is given, and the development of a bi-directional communications and power module (BCPM)component is described. The successful operation of this component in both the laboratory and field environment is described. The primary conclusion of this development is that the BCPM component operates as anticipated within the CT-BHA, and significantly extends the possibility of drilling with coiled tubing in the microhole environment.

  9. Geospatial Science Steering Committee | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdfTechnologiesNATIONAL003NotEnergyProgram Geospatial

  10. Energy Privacy Steering Committee | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPowerHome | DocumentsElements ofin Log

  11. HAMMER Steering Committee Meeting | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: CongestionDevelopment ofofthePerformanceofPathwaySeptember 11 - 13,

  12. Steering Committee | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900Steep Slope Calculator Estimates Cooling and

  13. Steering Committee | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarshipSpiraling LaserAppropriations Scientific Highlight

  14. Use beam steering dipoles to minimize aberrations associated with off-centered transit through the induction bunching module. Design an improved NDCX-I drift compression section to make best use of the new bunching module to optimize planned initial NDCX-I target experiments

    SciTech Connect (OSTI)

    HIFS-VNL; Seidl, Peter; Seidl, P.; Barnard, J.; Bieniosek, F.; Coleman, J.; Grote, D.; Leitner, M.; Gilson, E.; Logan, B.G.; Lund, S.; Lidia, S.; Ni, P.; Ogata, D.; Roy, P.; Waldron, W.; Welch, D.; Wooton, C.

    2008-03-28T23:59:59.000Z

    This milestone has been met by: (1) calculating steering solutions and implementing them in the experiment using the three pairs of crossed magnetic dipoles installed in between the matching solenoids, S1-S4. We have demonstrated the ability to center the beam position and angle to<1 mm and<1 mrad upstream of the induction bunching module (IBM) gap, compared to uncorrected beam offsets of several millimeters and milli-radians. (2) Based on LSP and analytic study, the new IBM, which has twice the volt-seconds of our first IBM, should be accompanied by a longer drift compression section in order to achieve a predicted doubling of the energy deposition on future warm-dense matter targets. This will be accomplished by constructing a longer ferro-electric plasma source. (3) Because the bunched current is a function of the longitudinal phase space and emittance of the beam entering the IBM we have characterized the longitudinal phase space with a high-resolution energy analyzer.

  15. Bridging Research to Implementation, from Fields to Wheels

    E-Print Network [OSTI]

    Lee, Dongwon

    has a tremendous breadth of expertise in these issues that span across the entire biomass supply chain as the technical issues related to biomass processing, for the success of a biorefinery and bioindustry. Penn State. They include, but are not limited to: Feedstock assessment· Sustainable agricultural and forest feedstock

  16. Three-wheel air turbocompressor for PEM fuel cell systems

    DOE Patents [OSTI]

    Rehg, Tim; Gee, Mark; Emerson, Terence P.; Ferrall, Joe; Sokolov, Pavel

    2003-08-19T23:59:59.000Z

    A fuel cell system comprises a compressor and a fuel processor downstream of the compressor. A fuel cell stack is in communication with the fuel processor and compressor. A combustor is downstream of the fuel cell stack. First and second turbines are downstream of the fuel processor and in parallel flow communication with one another. A distribution valve is in communication with the first and second turbines. The first and second turbines are mechanically engaged to the compressor. A bypass valve is intermediate the compressor and the second turbine, with the bypass valve enabling a compressed gas from the compressor to bypass the fuel processor.

  17. FULL FUEL CYCLE ASSESSMENT TANK TO WHEELS EMISSIONS

    E-Print Network [OSTI]

    : Energy Commission Air Resources Board #12;#12;v ABSTRACT Emissions associated with the production) emissions for methanol, diesel, liquefied petroleum gas (LPG), and electric vehicle operation. Reformulated of extraction, production, and distribution equipment. Emissions associated with the production

  18. FULL FUEL CYCLE ASSESSMENT: WELL-TO-WHEELS ENERGY INPUTS,

    E-Print Network [OSTI]

    First Southwest Company Ford Motor Co. Friends of the Earth/Blue Water Network General Motors California Electric Transportation Coalition California Fuel Cell Partnership California Invasive Plant Systems Inc Electric Power Research Institute Energy Independence Now Exxon Mobil Ferrellgas-Blue Rhino

  19. A CASTOR WHEEL CONTROLLER FOR DIFFERENTIAL DRIVE WHEELCHAIRS

    E-Print Network [OSTI]

    Bremen, Universität

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

  20. CLEAN HYDROGEN TECHNOLOGY FOR 3-WHEEL TRANSPORTATION IN INDIA

    SciTech Connect (OSTI)

    Krishna Sapru

    2005-11-15T23:59:59.000Z

    Hydrogen is a clean burning, non-polluting transportation fuel. It is also a renewable energy carrier that can be produced from non-fossil fuel resources such as solar, wind and biomass. Utilizing hydrogen as an alternative fuel for vehicles will diversify the resources of energy, and reduce dependence on oil in the transportation sector. Additionally, clean burning hydrogen fuel will also alleviate air pollution that is a very severe problem in many parts of world, especially major metropolitan areas in developing countries, such as India and China. In our efforts to foster international collaborations in the research, development, and demonstration of hydrogen technologies, through a USAID/DOE cost-shared project, Energy Conversion Devices, Inc.,(www.ovonic.com) a leading materials and alternative energy company, in collaboration with Bajaj Auto Limited, India's largest three-wheeler taxi manufacturer, has successfully developed and demonstrated prototype hydrogen ICE three-wheelers in the United States and India. ECD's proprietary Ovonic solid-state hydrogen storage technology is utilized on-board to provide a means of compact, low pressure, and safe hydrogen fuel. These prototype hydrogen three-wheelers have demonstrated comparable performance to the original CNG version of the vehicle, achieving a driving range of 130 km. The hydrogen storage system capable of storing 1 kg hydrogen can be refilled to 80% of its capacity in about 15 minutes at a pressure of 300 psi. The prototype vehicles developed under this project have been showcased and made available for test rides to the public at exhibits such as the 16th NHA annual meeting in April 2005, Washington, DC, and the SIAM (Society of Indian Automotive Manufacturers) annual conference in August 2005, New Delhi, India. Passengers have included members of the automotive industry, founders of both ECD and Bajaj, members of the World Bank, the Indian Union Minister for Finance, the President of the Asia Development Bank, members of USAID, USDOE and many other individuals, all of whom have had praise for the vehicle and the technology. The progress made through this phase I work and the importance of hydrogen three-wheelers has also resulted in extensive press coverage by the news media around the world.

  1. Capital Controls: Mud in the Wheels of Market Discipline

    E-Print Network [OSTI]

    Forbes, Kristin J.

    2004-03-12T23:59:59.000Z

    Widespread support for capital account liberalization in emerging markets has recently shifted to skepticism and even support for capital controls in certain circumstances. This sea-change in attitudes has been bolstered ...

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

    E-Print Network [OSTI]

    Carothers, Jeffrey (Jeffrey W.)

    2014-01-01T23:59:59.000Z

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

  3. The design, construction, and control of a wheeled robot vehicle

    E-Print Network [OSTI]

    Ekiriwang, Tevo

    1986-01-01T23:59:59.000Z

    of Advisory Committee: Dr. Dennis N. Bingham The mobile robot, is one of the most actively researched fields in robotics, and it offers more flexibility and working volume than the fixed single arm type. The objective of this research is to design... diverse. This is because of their flexibility. en- durability, and reliability. For example, robots can work continuously for twenty four hours, or work in an environment which is unsafe or inconvinient for liuman beings (eg. nuclear power plant...

  4. Aspects of the History of the Prayer Wheel

    E-Print Network [OSTI]

    Winder, Marianne

    1992-01-01T23:59:59.000Z

    paintings onwards. H.1. Horwitz and Berthold Laufer 19) have described Tibetan prayer drums with curved wind-vanes preserved in Western museums. Nowadays, the Savonius S-rotor which provides air conditioning in the form of the twirling ventilators...

  5. From Wheels to Wings with Evolutionary Spiking Circuits

    E-Print Network [OSTI]

    Lausanne, Ecole Polytechnique Fédérale de

    a challenge because it requires miniaturization, energy efficiency, and control of non-linear flight dynamics available on the market, and can be quickly assembled with off-the-shelf components. Terrestrial robots let size than any other flying animal. Nonetheless, insects exploit complex visual information to fly

  6. Odometry Error Covariance Estimation for Two Wheel Robot Vehicles

    E-Print Network [OSTI]

    Robotics Research Centre Department of Electrical and Computer Systems Engineering Monash University Technical Report MECSE-95-1 1995 ABSTRACT This technical report develops a simple statistical error model of the robot. Other paths can be composed of short segments of constant curvature arcs without great loss

  7. Retooling Michigan: 'Wheels' to Wind | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin ofEnergy at Waste-to-Energy usingof EnhancedRestructuring ourU.S.CALiPER

  8. Energy Upgrade California Drives Demand From Behind the Wheel | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 FederalTexas Energyof 2005 at Iowa WindUnion7Transfer Energyof Energy

  9. The long time behavior of diffusion in tilted periodic potentials

    E-Print Network [OSTI]

    2013-09-18T23:59:59.000Z

    Sep 18, 2013 ... In order to obtain more quantitative information about dynamical .... per(T),r = 1,2, denotes the space of the restriction to T of functions in Cr(R) ...

  10. Unique determination of the -CN group tilt angle in Langmuir...

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

    angle and phase. Abstract: The relative phase and amplitude ratio between the ssp and ppp polarization combinations of the vibrational sum-frequency generation (SFG) response...

  11. Dynamics of Tilt-based Browsing on Mobile Devices

    E-Print Network [OSTI]

    Cho, S.J.; Murray-Smith, R.

    Cho,S.J. Murray-Smith,R. Choi,C. Sung,Y. Lee,K. Kim,Y.B. CHI '07 extended abstracts on Human factors in computing systems, http://doi.acm.org/10.1145/1240866.1240930 pp 1947 - 1952 ACM Press

  12. Vacuum compatible, high-speed, 2-D mirror tilt stage

    DOE Patents [OSTI]

    Denham; Paul E. (Crockett, CA)

    2007-09-25T23:59:59.000Z

    A compact and vacuum compatible magnetic-coil driven tiltable stage that is equipped with a high efficiency reflective coating can be employed as a scanner in EUV applications. The drive electronics for the scanner is fully in situ programmable and rapidly switchable.

  13. Concrete Tilt-up Construction on the Farm.

    E-Print Network [OSTI]

    Hobgood, Price; Kunze, Otto R.

    1957-01-01T23:59:59.000Z

    , dairy barns cmd poultry houses, which were collected from 23 land-grant colleges throughout the United States, showed that the walls of most farm buildings in these classificatio,ns can be constructed from 8 x 8 or 8 x 10-foot panel modules... with thicknesses of 4 to 6 inches. A sand bed covered with 4 mil polyethylene sheeting made a satisfactory casting bed. A minimum of two footing holes 8 or more inches in diameter and 30 inches deep were used to support line or end pilasters, while a minimum...

  14. ''Tilting'' the universe with the landscape multiverse: the dark flow

    SciTech Connect (OSTI)

    Mersini-Houghton, L. [Department of Physics and Astronomy, UNC, Chapel Hill, NC 27599-3255 (United States)] [Department of Physics and Astronomy, UNC, Chapel Hill, NC 27599-3255 (United States); Holman, R., E-mail: mersini@physics.unc.edu, E-mail: rh4a@andrew.cmu.edu [Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213 (United States)

    2009-02-15T23:59:59.000Z

    We argue that the recent observations of large scale bulk flows by Kashlinsky et al. has a natural explanation in terms of superhorizon inhomogeneities induced by nonlocal entanglement of our Hubble volume with modes and domains beyond the horizon. This entanglement gives rise to corrections to the Newtonian potential on a characteristic scale L{sub 1} {approx_equal} 10{sup 3}H{sup -1}, and it induces a dipole and quadrupole contribution in the CMB. We also show that these induced multipoles are aligned with each other, with the alignment axis normal to their plane being oriented along the preferred frame determined by the dipole. We also give other potential tests of our hypothesis.

  15. Performance of the MROI fast tip-tilt correction system

    E-Print Network [OSTI]

    Young, John; Buscher, David; Fisher, Martin; Haniff, Christopher; Rea, Alexander; Seneta, Eugene; Sun, Xiaowei; Wilson, Donald; Farris, Allen; Olivares, Andres

    2014-07-15T23:59:59.000Z

    runs in ordinary Linux. The application communicates with sensors (either analogue voltage or I 2 C types) and a heater via two USB-driven Labjack U3 boards. The control/display GUI provides a graphical user interface for commanding the system... and its CPU sit in a the temperature controlled rack #22; cabinet #16;Q5#17; #22; within the telescope enclosure. A separate services interface plate (top right) manages the dry air and cooling water for the system and includes manual valves and a flow...

  16. File:NREL-africa-tilt.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump to: navigation,SizeEthiopiametstak.pdfMFSA06-2012Afghanistan -PDF)Plate

  17. File:NREL-asia-tilt.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump to:ar-80m.pdf Jump to: navigation, search File File historytilt.pdf Jump

  18. An acoustic wave equation for modeling in tilted TI media

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta FeAuthorization| Iron is|

  19. Regional characteristics, tilt domains, and extensional history of the Late

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation, searchRayreviewAl., 2005) |RGGI JumpCenozoic Basin and

  20. Chassis stabilization system

    DOE Patents [OSTI]

    Claxton, Gerald L. (Fresno, CA)

    1999-01-01T23:59:59.000Z

    A stabilizing suspension system is provided for vehicles carrying telescopic booms or aerial work platforms having a fixed axle and a oscillating axle. Hydraulic cylinders are connected to each end of the oscillating axle, each cylinder being capable of extending and retracting. An off level sensor senses the angle of tilt of the chassis in both left and right directions and, when a predetermined threshold of tilt has been detected, the hydraulic cylinder on the downhill side of the chassis is locked against retracting, but is free to move in the downhill direction to allow the downhill wheel to remain in contact with the ground.

  1. Global Nuclear Energy Partnership Steering Group Members Approve...

    Office of Environmental Management (EM)

    Algeria, Argentina, Australia, Bulgaria, Canada, China, Czech Republic, Egypt, France, Germany, Ghana, Italy, Japan, Jordan, Republic of Korea, Morocco, Netherlands, Nigeria,...

  2. Improving Conifer Timber Steering Group Wednesday 1st

    E-Print Network [OSTI]

    on suitability of the different sorts of improved stock according to climate and site conditions. Alexis Achim currently taking place in New Zealand. The party then returned to Kielder Castle for lunch and the business

  3. Interactive Simulation of Surgical Needle Insertion and Steering

    E-Print Network [OSTI]

    Chentanez, Nuttapong

    2010-01-01T23:59:59.000Z

    47] Dinesh K. Pai. STRANDS: Interactive simulation of thinand James F. O’Brien. Interactive simulation of surgicalM. Gr´egoire and E. Sch¨omer. Interactive simulation of one-

  4. Department of Energy Hosts First Steering Committee Meeting on...

    Energy Savers [EERE]

    source that powers growing economies, while greatly reducing greenhouse gas emissions and air pollution." The Action Plan, which was signed in April 2007, fulfilled the commitment...

  5. Optimal steering of inertial particles diffusing anisotropically with losses

    E-Print Network [OSTI]

    Yongxin Chen; Tryphon T. Georgiou; Michele Pavon

    2014-10-07T23:59:59.000Z

    Exploiting a fluid dynamic formulation for which a probabilistic counterpart might not be available, we extend the theory of Schroedinger bridges to the case of inertial particles with losses and general, possibly singular diffusion coefficient. We find that, as for the case of constant diffusion coefficient matrix, the optimal control law is obtained by solving a system of two p.d.e.'s involving adjoint operators and coupled through their boundary values. In the linear case with quadratic loss function, the system turns into two matrix Riccati equations with coupled split boundary conditions. An alternative formulation of the control problem as a semidefinite programming problem allows computation of suboptimal solutions. This is illustrated in one example of inertial particles subject to a constant rate killing.

  6. Performance of Santa Gertrudis steers under various methods of production

    E-Print Network [OSTI]

    Reyes, Humberto V

    1955-01-01T23:59:59.000Z

    States. This ne? breed is a result of years of breeding and selection by the management of the King Ranch located in South Texas. The main obJective of the1r breeding program was to develop a breed which would prOduce des1rable beef carcasses when fin... by Federal Graders and were cut according to the standard cutting methods as approved by the Reciprocal Rests Conf srence. Tenderness scores were determined by a fudging committee using 5/4 inch well done broiled loin steaks. Tenderness was rated...

  7. RETI Stakeholder Steering Committee Renewable Energy Transmission Initiative

    E-Print Network [OSTI]

    ........................................................................................................... 1-5 1.5 Solar Photovoltaic................................................................................................ 1-5 1.6 Solar Thermal ................................................................................................... 3-2 3.2.1 Environmental Exclusions

  8. Changes in Body Measurements of Steers During Intensive Fattening.

    E-Print Network [OSTI]

    Lush, Jay L. (Jay Laurence)

    1928-01-01T23:59:59.000Z

    and Accounls **J. N. TATE, B. S.. Assistant: Ranch Records and Accounts7 RURAL HOME RESEARCH: JESSIE WHITACRE, Ph. D.. Chief MAMIE GRIMES, M. S.. Textile and Clothing ndman Specialist EMMA E. SUMNER, M. S., Nutrition Specialid SOIL SURVEY: **W.... . Tlle six lots called "Herefords" were sired by purebred Hereford bulls ancl ~vere'out of graXiTbrEFord cows which had at least five or six top- crosses of ITereford blood. For commercial purposes they were therefore ~~riictically equiv...

  9. How ocean color can steer Pacific tropical cyclones

    E-Print Network [OSTI]

    Gnanadesikan, Anand

    Because ocean color alters the absorption of sunlight, it can produce changes in sea surface temperatures with further impacts on atmospheric circulation. These changes can project onto fields previously recognized to alter ...

  10. ClusterSculptor: Software for Expert-Steered Classification of...

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

    and intuitive framework to aid scientists in data classification. ClusterSculptor uses k-means as the overall clustering engine, but allows tuning its parameters interactively,...

  11. 06/18/01 23 Members of Steering Committee

    E-Print Network [OSTI]

    savings will be squandered on cooling losses unless the refrigeration system is very small. Cables have Cryogenics Needs of Future HTS Electric Power Equipment July 22, 1998 This workshop addressed the question: Will practical cryogenic refrigerators be available to meet the needs of emerging superconducting power systems

  12. A Line Search Exact Penalty Method Using Steering Rules

    E-Print Network [OSTI]

    2009-01-11T23:59:59.000Z

    Jan 11, 2009 ... where v(x) is a measure of constraint violation and ? is the penalty .... design of Algorithm I is based on the following three updating guidelines,.

  13. Operationalizing Anticipatory Governance: Steering Emerging Technologies Towards Sustainability

    E-Print Network [OSTI]

    Philbrick, Mark

    2010-01-01T23:59:59.000Z

    focused on “nanotechnology applications for solar energy”, “Nanotechnology Applications for Solar Energy” and “

  14. Operationalizing Anticipatory Governance: Steering Emerging Technologies Towards Sustainability

    E-Print Network [OSTI]

    Philbrick, Mark

    2010-01-01T23:59:59.000Z

    Meaningful citizen engagement in science and technology -of humility: Citizen participation in governing science."critical evaluation of citizen engagement with science and

  15. Interactive Simulation of Surgical Needle Insertion and Steering

    E-Print Network [OSTI]

    Chentanez, Nuttapong

    2010-01-01T23:59:59.000Z

    a parallel conjugate gradient method on sparse matrices, ef-effectively with the Conjugate Gradient method (CG). We nextbe solved by the conjugate gradient method (CG), and require

  16. Operationalizing Anticipatory Governance: Steering Emerging Technologies Towards Sustainability

    E-Print Network [OSTI]

    Philbrick, Mark

    2010-01-01T23:59:59.000Z

    energy and clean water, have been historically underfunded, and represent an opportunity for public investment,

  17. Operationalizing Anticipatory Governance: Steering Emerging Technologies Towards Sustainability

    E-Print Network [OSTI]

    Philbrick, Mark

    2010-01-01T23:59:59.000Z

    within a larger sustainability framework. This line ofgovernance plus sustainability framework, there is need for

  18. Global Nuclear Energy Partnership Inaugural Steering Group Meeting...

    Energy Savers [EERE]

    in Vienna, Austria, with all of GNEP's nineteen members, Australia, Bulgaria, Canada, China, France, Ghana, Hungary, Italy, Japan, Jordan, Kazakhstan, Lithuania, Poland,...

  19. The Compass That Steered Robotics Bruce R. Donald

    E-Print Network [OSTI]

    Donald, Bruce Randall

    at Cornell, just down the hall from Dexter. My health was excellent. Every morning I drank Pepsi before

  20. USAMP/NonDestructive Evaluation Steering Committee (Task Team...

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

    for Nondestructive Evaluation * NDE for light-weighting Development in the North American Automotive Industry * NDE for manufacturing * Emerging challenges Hurdles to greater...

  1. Open-center steering control unit with flow amplification

    SciTech Connect (OSTI)

    Schutten, H.P.; Stephenson, D.B.; Haarstad, D.M.

    1990-09-25T23:59:59.000Z

    This patent describes an open-center controller. It is operable to control the flow of fluid from a source of fluid to a fluid pressure operated device. The controller is of the type including housing means defining a fluid inlet port for connection to the source of fluid, a return port for connection to a reservoir, and first and second control fluid ports for connection to the fluid pressure operated device; valve means disposed in the housing means and defining a neutral position and a first operating position. The housing means and the valve means cooperating to define a neutral fluid path communicating between the inlet port and the return port, and including a variable neutral orifice having its maximum flow area when the valve means is in the neutral position, and a decreasing flow area as the valve means is displaced from the neutral position toward the first operating position. The housing means and the valve means cooperating to define a main fluid path communicating between the inlet port and the first control fluid port, and between the second control fluid port and the return port when the valve means is in the first operating position.

  2. Optical beam steering based on electromagnetically induced transparency

    E-Print Network [OSTI]

    Sun, Qingqing; Rostovtsev, Yuri V.; Zubairy, M. Suhail

    2006-01-01T23:59:59.000Z

    ;1977#2;. #3;21#4; G. T. Purves, G. Jundt, C. S. Adams, and I. G. Hughes, Eur. Phys. J. D 29, 433 #1;2004#2;. #3;22#4; S. E. Harris, J. E. Field, and A. Imamoglu, Phys. Rev. Lett. 64, 1107 #1;1990#2;. #3;23#4; M. O. Scully and S. Y. Zhu, Opt. Commun. 87...

  3. Factors influencing carbohydrate utilization in steers fed processed sorghum grain

    E-Print Network [OSTI]

    McNeill, John W

    1970-01-01T23:59:59.000Z

    reacted with iodine (Baker et al. , 1950) . Th& fermentation of dietary carbol!ydrates in the rumen results in tl. e production of volatile fatty acids (Annlson nd Be&&is& 1959). These acids constitute tI&e major source cf energy for th& ruminant...

  4. Agenda - Interagency Steering Committee on Performance and Risk...

    Office of Environmental Management (EM)

    Phase 2 Studies, Dr. Zintars Zadins (Chenega) 4:30 - 6:00 pm Discussions, All Participants To view all the P&RA CoP 2014 Technical Exchange Meeting videos click here....

  5. Some factors influencing digestion and growth rates of beef steers

    E-Print Network [OSTI]

    Gossett, John Warren

    1955-01-01T23:59:59.000Z

    ~ R? K~c P? 8? ~c H. 8? mLaohp 8? R? Ellis ani P? T? 1IarLon. 1943. Vitanin k studios in fattening feeder oalms ani yoarlingo ~ Tax? kgr ~ Exp? Sta Bul? 630? Jcnao? J? H?c J? 8? Jonclc G S? PcccPoc k? 8? K~orp R? 8? Dishes' C? 8, rioter and 8? R...

  6. Report of the International Grid Performance Workshop 2005 Steering Committee

    E-Print Network [OSTI]

    Jarvis, Stephen

    of Tennessee Ian Foster, Argonne National Laboratory Bill Gropp, Argonne National Laboratory Tony Hey, UK e

  7. An Experimental Comparison of CMG Steering Control Laws

    E-Print Network [OSTI]

    Tsiotras, Panagiotis

    a spinning flywheel. A major problem encountered with the use of CMGs in practice is the possibility The flywheel of a CMG spins at a constant speed, and torquing of the gimbal results in a precessional

  8. Experimental testing and modelling of a mechanical steering compensator

    E-Print Network [OSTI]

    Cambridge, University of

    side of the gear box is connected to a disc of small inertia and a flywheel is allowed to spin freely on the same shaft. The disc and the flywheel are both located inside the cylindrical casing shown in Fig. 1 from the disc to the flywheel to create the effect of a linear damper. The flywheel accounts

  9. Global Nuclear Energy Partnership Inaugural Steering Group Meeting Makes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), Geothermal TechnologiesGeothermal energyMarked Progress | Department

  10. Global Nuclear Energy Partnership Steering Group Members Approve

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), Geothermal TechnologiesGeothermal energyMarked Progress

  11. Obama Administration Announces Members of Steering Team to Lead Interagency

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked QuestionsDepartment ofDepartment640OrderOREMJanuaryEfficiencySmartCoordination of

  12. Global Nuclear Energy Partnership Steering Group Members Approve

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: CongestionDevelopment of a downholeReactors |

  13. Global Nuclear Energy Partnership Inaugural Steering Group Meeting Makes

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12 OPAMGeneral Guidance onGlenn Podonsky About Us GlennofMarked

  14. Global Nuclear Energy Partnership Steering Group Members Approve

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12 OPAMGeneral Guidance onGlenn Podonsky About UsTransformation

  15. Obama Administration Announces Members of Steering Team to Lead Interagency

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOilNEWResponse to Time-BasedDecember 23,MiscChallenge

  16. LEDSGP/about/steering-committee | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation,

  17. Environmental Management System Steering Committee | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8, 2000ConsumptionInnovationEnvironment,682|Years

  18. MEMORANDUM FOR THE CHAIRPERSONS, I-MANAGE EXECUTIVE STEERING COMMITTEE

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1,(EAC) Richard Cowart, Chair DATE: June 6,State of Wisconsin

  19. USAMP/NonDestructive Evaluation Steering Committee (Task Team) | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your DensityEnergy U.S.-China Electric Vehicle and BatteryUS-EU-Japan Working Group onPHEV Battery2009of

  20. Agenda - Interagency Steering Committee on Performance and Risk Assessment

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613Portsmouth SitePresentations |StateNuclear Energy Projects4 Statusof3 -Community of

  1. Microcavity Polaritonics: Optically-Steering Interacting Quantum Liquids on

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your HomeOverview andSinatraMicroBooNE Proposal34 for5a Chip

  2. Steering and Separating Excitons in Organic Thin Films and Devices |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarshipSpiraling LaserAppropriations Scientific

  3. Game Theoretic Modelling of a Human Driver’s Steering Interaction with Vehicle Active Steering Collision Avoidance System

    E-Print Network [OSTI]

    Na, Xiaoxiang; Cole, David J.

    2014-11-10T23:59:59.000Z

    -Integral-Derivative (PID) control, Model Predictive Control (MPC) and Linear Quadratic Regulator (LQR). Particular attention here is given to the MPC and LQR which serve as the foundation of the distributed MPC and LQ dynamic optimization approaches to be described...

  4. Multiple-degree-of-freedom vehicle

    DOE Patents [OSTI]

    Borenstein, Johann (Ann Arbor, MI)

    1995-01-01T23:59:59.000Z

    A multi-degree-of-freedom vehicle employs a compliant linkage to accommodate the need for a variation in the distance between drive wheels or drive systems which are independently steerable and drivable. The subject vehicle is provided with rotary encodes to provide signals representative of the orientation of the steering pivot associated with each such drive wheel or system, and a linear encoder which issues a signal representative of the fluctuations in the distance between the drive elements. The wheels of the vehicle are steered and driven in response to the linear encoder signal, there being provided a controller system for minimizing the fluctuations in the distance. The controller system is a software implementation of a plurality of controllers, operating at the chassis level and at the vehicle level. A trajectory interpolator receives x-displacement, y-displacement, and .theta.-displacement signals and produces to the vehicle level controller trajectory signals corresponding to interpolated control signals. The x-displacement, y-displacement, and .theta.-displacement signals are received from a human operator, via a manipulable joy stick.

  5. The Fix Issue 15

    E-Print Network [OSTI]

    Multiple Contributors

    1996-01-01T23:59:59.000Z

    that make you real thirsty and chasi n' 'em down with some of that g reat punch of his. Listenin' to somethin' hot from twelve speakers and dandn' with a redhead in one of those short disco skirts ... " Hutch broke in on his rhapsody. "Starsky, you know... said suddenly. Starsky spotted the g reen convertible a second after Hutch - maybe ten car lengths ahead of them, The WMA - white male American, an antiquated term of description some cops still used - was crouched over his steering wheel, his bushy...

  6. Visual servoing using statistical pressure snakes.

    SciTech Connect (OSTI)

    Schaub, Hanspeter (ORION International Technologies, Albuquerque, NM)

    2004-05-01T23:59:59.000Z

    A nonlinear visual servoing steering law is presented which is used to align a camera view with a visual target. A full color version of statistical pressure snakes is used to identify and track the target with a series of video frames. The nonlinear steering law provides camera-frame centric speed commands to a velocity based servo sub-system. To avoid saturating the subsystem, the commanded speeds are smoothly limited to remain within a finite range. Analytical error analysis is also provided illustrating how the two control gains contribute to the stiffness of the control. The algorithm is demonstrated on a pan and tilt camera system. The control law is able to smoothly realign the camera to point at the target.

  7. Compact, flexible, frequency agile parametric wavelength converter

    DOE Patents [OSTI]

    Velsko, Stephan P. (Livermore, CA); Yang, Steven T. (Danville, CA)

    2002-01-01T23:59:59.000Z

    This improved Frequency Agile Optical Parametric Oscillator provides near on-axis pumping of a single QPMC with a tilted periodically poled grating to overcome the necessity to find a particular crystal that will permit collinear birefringence in order to obtain a desired tuning range. A tilted grating design and the elongation of the transverse profile of the pump beam in the angle tuning plane of the FA-OPO reduces the rate of change of the overlap between the pumped volume in the crystal and the resonated and non-resonated wave mode volumes as the pump beam angle is changed. A folded mirror set relays the pivot point for beam steering from a beam deflector to the center of the FA-OPO crystal. This reduces the footprint of the device by as much as a factor of two over that obtained when using the refractive telescope design.

  8. Rapprochement as a Paradigm Shift: Does the Wheel Come Full Circle in Ex-Yugoslavia?

    E-Print Network [OSTI]

    Schubart, Christoph

    KLAJNSEK) Dubravko LOVRENOVI (Sarajevo): United We Stand? Croats in Bosnia and Herzegovina (title tbc) 18 (Belgrade): The Cooperation between Croatia and Serbia as a Means to Strengthen the EU-Perspective of Bosnia

  9. A systems engineering methodology for fuel efficiency and its application to a tactical wheeled vehicle demonstrator

    E-Print Network [OSTI]

    Luskin, Paul (Paul L.)

    2010-01-01T23:59:59.000Z

    The U.S. Department of Defense faces growing fuel demand, resulting in increasing costs and compromised operational capability. In response to this issue, the Fuel Efficient Ground Vehicle Demonstrator (FED) program was ...

  10. A Study of the Effect of Using Electrodynamic Wheels in University of Wisconsin-Madison

    E-Print Network [OSTI]

    Lipo, Thomas

    -Madison College of Engineering Wisconsin Power Electronics Research Center 2559D Engineering Hall 1415 Engineering. & Comp. Engr. University of Wisconsin-Madison 1415 Engineering Drive Madison, WI 53706 #12;A STUDY permanent magnet Halbach array above a conducting, non-magnetic, track generates a travelling time

  11. Design and control of multimodal single-legged vehicles with variable geometry reaction wheel arrays

    E-Print Network [OSTI]

    Schmidt-Wetekam, Christopher

    2011-01-01T23:59:59.000Z

    semiconductor field-effect transistor (MOSFET) 2-Axis MEMS Accelerometer Analog Devices ADXL321 (+/- 18g) Texas Instruments DRV8432 Dual H-Bridge

  12. A comparison of large wheel grinding tasks by heart rate analysis

    E-Print Network [OSTI]

    Vos, Grover Anthony

    1972-01-01T23:59:59.000Z

    A COMPARISON OF LARGE IIIHEEL GRINDING TASMS BY HEART RATF ANALYSIS A Thesis by GROVER ANTHONY VOS Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1972 Ma)or Subject: Industrial Hygiene A COMRARISON OF LARGE IdHEEL GRINDING TASYiS BY HEART RATE ANALYSIS A Thesis by GROVER ANTHONY VOS Approved es to style snd content by: C sirme of Committee (Heed of Depertm ) /[ v Member Member...

  13. Design and control of multimodal single-legged vehicles with variable geometry reaction wheel arrays

    E-Print Network [OSTI]

    Schmidt-Wetekam, Christopher

    2011-01-01T23:59:59.000Z

    brushes housed within copper cartridges slide along copper contacts connected to wires running within the hollow

  14. A mechanism of abiotic immobilization of nitrate in forest ecosystems: the ferrous wheel hypothesis

    E-Print Network [OSTI]

    Chorover, Jon

    , including carbon sequestration by forests. How- ever, recent evidence from N fertilization studies soils has important implications for under- standing current and future carbon budgets. Abiotic a key role as a catalyst, with Fe(II) reducing nitrate and reduced forms of carbon then regenerating Fe

  15. Energy Wheel Performance and Optimization Opportunities for SDVAV AHU's In a Hot & Humid Climate

    E-Print Network [OSTI]

    Zhao, J.; Wang, L.; Watt, J.

    2012-01-01T23:59:59.000Z

    The HVAC system accounts for 30 to 50 percent of a typical building's energy consumption; in hot & humid climates it is closer to the upper end of that range. Implementing effective energy saving measures for the building HVAC system can reduce...

  16. Enthalpy Wheels Come of Age: Applying Energy Recovery Ventilation to Hospitality Venues in Hot, Humid Climate

    E-Print Network [OSTI]

    Wellford, B. W.

    2000-01-01T23:59:59.000Z

    ventilation to hospitality venues in hot, humid climates need not be complex. This paper proposes guidelines that can facilitate application of the technology by specifiers or other construction professionals. These guidelines address evaluation of typical...

  17. THE DYNAMICS OF A RAILWAY WAGON WHEEL SET WITH DRY FRICTION DAMPING

    E-Print Network [OSTI]

    stick-slip and hysteresis in our model of the dry friction and assume that Coulomb's friction law holds-rail interaction and this simplicity might be a contributing factor to the derailments. In this article a more

  18. On Steady-State Cornering Equilibria for Wheeled Vehicles with Drift

    E-Print Network [OSTI]

    Velenis, Efstathios

    In this work we derive steady-state cornering conditions for a single-track vehicle model without restricting the operation of the tires to their linear region (i.e. allowing the vehicle to drift). For each steady-state ...

  19. Energy Wheel Performance and Optimization Opportunities for SDVAV AHU's In a Hot & Humid Climate 

    E-Print Network [OSTI]

    Zhao, J.; Wang, L.; Watt, J.

    2012-01-01T23:59:59.000Z

    The HVAC system accounts for 30 to 50 percent of a typical building's energy consumption; in hot & humid climates it is closer to the upper end of that range. Implementing effective energy saving measures for the building HVAC system can reduce...

  20. Competition & retail wheeling: Where we`ve been and where we`re going (maybe)

    SciTech Connect (OSTI)

    Edwards, W.K.

    1996-12-31T23:59:59.000Z

    It is a pleasure to be with you today to discuss the {open_quotes}adventure{close_quotes} of competition that will undoubtedly effect all of us. I wish to direct my initial comments to a comparison of generation planning under regulation to the present day economics which I believe is a major cause for the competitive movement we are seeing now. From there, I will discuss the road to competition that we have been on for a very long time. Finally, I will address some of the implementation concerns I see and will provide some suggestions for the future.