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1

Kinetic Alfv'en Eigenmodes in a Hot Tokamak Plasma  

E-Print Network [OSTI]

'en waves, with a power absorption occurring through resistive dissipation. The kinetic model is appropriate­100 44 Stockholm, Sweden 2 CRPP­EPFL, CH­1015 Lausanne, Switzerland 3 JET Joint Undertaking, Abingdon Resonant destabilization of Alfv'en waves by fusion produced ff\\Gammaparticles is an important issue

Jaun, André

2

Vlasov simulations of Kinetic Alfv\\'en Waves at proton kinetic scales  

E-Print Network [OSTI]

Kinetic Alfv\\'en waves represent an important subject in space plasma physics, since they are thought to play a crucial role in the development of the turbulent energy cascade in the solar wind plasma at short wavelengths (of the order of the proton inertial length $d_p$ and beyond). A full understanding of the physical mechanisms which govern the kinetic plasma dynamics at these scales can provide important clues on the problem of the turbulent dissipation and heating in collisionless systems. In this paper, hybrid Vlasov-Maxwell simulations are employed to analyze in detail the features of the kinetic Alfv\\'en waves at proton kinetic scales, in typical conditions of the solar wind environment. In particular, linear and nonlinear regimes of propagation of these fluctuations have been investigated in a single-wave situation, focusing on the physical processes of collisionless Landau damping and wave-particle resonant interaction. Interestingly, since for wavelengths close to $d_p$ and proton plasma beta $\\bet...

Vasconez, C L; Camporeale, E; Veltri, P

2014-01-01T23:59:59.000Z

3

Energy of tsunami waves generated by bottom motion  

E-Print Network [OSTI]

Energy of tsunami waves generated by bottom motion By Denys Dutykh, Fr´ed´eric Dias CMLA, ENS investigation on the energy of waves generated by bottom motion is performed here. We start with the full for the linearized water wave equations. Exchanges between potential and kinetic energies are clearly revealed

Boyer, Edmond

4

Understanding ammonia selective catalytic reduction kinetics over Cu-SSZ-13 from motion of the Cu ions  

SciTech Connect (OSTI)

Cu-SSZ-13 catalysts with three Si/Al ratios, at 6, 12 and 35, are synthesized with solution ion exchange. Catalysts are characterized with surface area/pore volume measurements, temperature programmed reduction (TPR), and electron paramagnetic resonance (EPR) spectroscopy. Catalytic properties are examined using NO oxidation, ammonia oxidation, and standard ammonia selective catalytic reduction (NH3-SCR) reactions. By varying Si/Al ratios and Cu loadings, it is possible to synthesize catalysts with one dominant type of isolated Cu2+ ion species. Prior to full dehydration of the zeolite catalyst, hydrated Cu2+ ions are found to be very mobile as judged from EPR. NO oxidation is catalyzed by O-bridged Cu-dimer species that form at relatively high Cu loadings and in the presence of O2. For NH3 oxidation and standard SCR reactions, transient Cu-dimers even form at much lower Cu loadings; and these are proposed to be the active sites for reaction temperatures ? 350 C. These dimer species can be viewed as in equilibrium with monomeric Cu ion complexes. Between ~250 and 350 C, these moieties become less stable causing SCR reaction rates to decrease. At temperatures above 350 C and at low Cu loadings, Cu-dimers completely dissociate to regenerate isolated Cu2+ monomers that then locate at ion-exchange sites of the zeolite lattice. At low Cu loadings, these Cu species are the high-temperature active SCR catalytic centers. At high Cu loadings, on the other hand, both Cu-dimers and monomers are highly active in the high temperature kinetic regime, yet Cu-dimers are less selective in SCR. Brnsted acidity is also very important for SCR reactivity in the high-temperature regime. The authors gratefully acknowledge the US Department of Energy (DOE), Energy Efficiency and Renewable Energy, Vehicle Technologies Office for the support of this work. The research described in this paper was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOEs Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated for the US DOE by Battelle.

Gao, Feng; Walter, Eric D.; Kollar, Marton; Wang, Yilin; Szanyi, Janos; Peden, Charles HF

2014-11-01T23:59:59.000Z

5

Phrases of the Kinetic: Dynamic Physicality as a Dimension of the Design Process  

E-Print Network [OSTI]

construction and dynamics physics education with children; Kinetic Sketchup, a system for motion construction

Ishii, Hiroshi

6

Phrases of the Kinetic: Dynamic Physicality as a Construct of Interaction Design  

E-Print Network [OSTI]

, a system for motion construction and dynamics physics education with children; Kinetic Sketchup, a system Backpacks for motion modulation Evaluations Kinetic Sketch-up Design Tools for motion prototyping

Ishii, Hiroshi

7

Motion capture och skrck; Motion capture and horror.  

E-Print Network [OSTI]

?? Det hr arbetet syftade till att underska om de skakningar och ryck som uppstr vid en dlig motion capture-inspelning, kan anvndas till frdel i (more)

sn, Kristina Helene

2014-01-01T23:59:59.000Z

8

Hybrid motion graph for character motion synthesis  

Science Journals Connector (OSTI)

Objective: This paper proposes a novel framework of Hybrid Motion Graph (HMG) for creating character animations, which enhances the graph-based structural control by motion field representations for efficient motion synthesis of diverse and interactive ... Keywords: Motion fields, Motion graph, Motion synthesis, Motion template, Motion transition

Weiwei Xing; Xiang Wei; Jian Zhang; Cheng Ren; Wei Lu

2014-02-01T23:59:59.000Z

9

Piezoelectric step-motion actuator  

DOE Patents [OSTI]

A step-motion actuator using piezoelectric material to launch a flight mass which, in turn, actuates a drive pawl to progressively engage and drive a toothed wheel or rod to accomplish stepped motion. Thus, the piezoelectric material converts electrical energy into kinetic energy of the mass, and the drive pawl and toothed wheel or rod convert the kinetic energy of the mass into the desired rotary or linear stepped motion. A compression frame may be secured about the piezoelectric element and adapted to pre-compress the piezoelectric material so as to reduce tensile loads thereon. A return spring may be used to return the mass to its resting position against the compression frame or piezoelectric material following launch. Alternative embodiment are possible, including an alternative first embodiment wherein two masses are launched in substantially different directions, and an alternative second embodiment wherein the mass is eliminated in favor of the piezoelectric material launching itself.

Mentesana; Charles P. (Leawood, KS)

2006-10-10T23:59:59.000Z

10

Micro Hydro Kinetic Turbines from Smart Hydro Power | Open Energy...  

Open Energy Info (EERE)

to the MHK database homepage Retrieved from "http:en.openei.orgwindex.php?titleMicroHydroKineticTurbinesfromSmartHydroPower&oldid720939" Category: Marine and...

11

Danotek Motion Technologies | Open Energy Information  

Open Energy Info (EERE)

Danotek Motion Technologies Danotek Motion Technologies Jump to: navigation, search Name Danotek Motion Technologies Place Ann Arbor, Michigan Zip 48103 Sector Wind energy Product Founded in 2001, Danotek develops electrical conversion systems, including generators, brushless motors, and electronics controls, for the wind power, fuel cell, and power storage markets. References Danotek Motion Technologies[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Danotek Motion Technologies is a company located in Ann Arbor, Michigan . References ↑ "Danotek Motion Technologies" Retrieved from "http://en.openei.org/w/index.php?title=Danotek_Motion_Technologies&oldid=344069"

12

Depth, and Motion inVision CMSC 436/636  

E-Print Network [OSTI]

, perceived depth related #12;Head Motion Parallax Bruce and Green 90, p. 231. Kinetic Depth Effect Bruce displacement) #12;Structure from Motion Bruce and Green 90, pg. 328. #12;Image Segmentation Discontinuities Representation techniques parameters #12;Experimental Findings Control necessary for development Held

Rheingans, Penny

13

Quantum potential energy as concealed motion  

E-Print Network [OSTI]

It is known that the Schroedinger equation may be derived from a hydrodynamic model in which the Lagrangian position coordinates of a continuum of particles represent the quantum state. Using Routh\\s method of ignorable coordinates it is shown that the quantum potential energy of particle interaction that represents quantum effects in this model may be regarded as the kinetic energy of additional concealed freedoms. The method brings an alternative perspective to Planck\\s constant, which plays the role of a hidden variable, and to the canonical quantization procedure, since what is termed kinetic energy in quantum mechanics may be regarded literally as energy due to motion.

Peter Holland

2014-11-13T23:59:59.000Z

14

Drift-/ Kinetic Alfven Eigenmodes in High Performance Tokamak Plasmas  

E-Print Network [OSTI]

Stockholm, Sweden 2) Plasma Science Fusion Centre, MIT, Cambridge MA 02139, USA 3) CRPP-EPFL, 1015 Lausanne to the kinetic Alfv´en wave. This stimulated the development of models such as continuum damping, complex-kinetic description for the bulk plasma. Such a model is required to calculate the power transfer between global fluid

Jaun, André

15

When motion appears stopped: Stereo motion standstill  

Science Journals Connector (OSTI)

...above, provides valuable information about the limits of both human motion and pattern computations. In motion standstill, an observer...uniform surround. The display was controlled by an 8600/200 Power PC Macintosh (Apple, Cupertino, CA) running a Matlab (Mathworks...

Chia-huei Tseng; Joetta L. Gobell; Zhong-Lin Lu; George Sperling

2006-01-01T23:59:59.000Z

16

Motion Planning Jana Kosecka  

E-Print Network [OSTI]

Slides thanks to http://cs.cmu.edu/~motionplanning, Jyh-Ming Lien Hard Motion Planning · Configuration Geometric Models S Sampling Based Motion Planner Discrete Search C-space planning Idea : Generate random

Kosecka, Jana

17

Nonequilibrium quantum kinetics  

SciTech Connect (OSTI)

This paper contains viewgraphs on non-equilibrium quantum kinetics of nuclear reactions at the intermediate and high energy ranges.

Danielewicz, P.

1997-09-22T23:59:59.000Z

18

An Approach to Kinetic Energy Diagnosis of MesoSynoptic Scale interactions  

Science Journals Connector (OSTI)

To explicitly describe the energy exchange between meso and synoptic-scale motions, a diagnostic scheme of kinetic energy has been developed. By using a horizontal filtering technique, meteorological variables are separated into synoptic and ...

Shou-Jun Chen; Le-Sheng Bai; Ernest C. Kung

1990-12-01T23:59:59.000Z

19

The Motion Capture Pipeline.  

E-Print Network [OSTI]

?? Motion Capture is an essential part of a world full of digital effects in movies and games. Understanding the pipelines between software is a (more)

Holmboe, Dennis

2008-01-01T23:59:59.000Z

20

MHK Technologies/Blue Motion Energy marine turbine | Open Energy  

Open Energy Info (EERE)

Motion Energy marine turbine Motion Energy marine turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Blue Motion Energy marine turbine.jpg Technology Profile Primary Organization Blue Motion Energy Technology Resource Click here Current Technology Type Click here Cross Flow Turbine Technology Description The Blue Motion Energy marine turbine however uses a patented system of seawalls A placed radial around the vertically mounted rotor B this way it is possible to funnel the current and significantly increase the flow velocity independent of the direction of the current Technology Dimensions Device Testing Date Submitted 59:30.2 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Blue_Motion_Energy_marine_turbine&oldid=681547

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


21

kinetic wave energy  

Science Journals Connector (OSTI)

kinetic wave energy ? kinetische Wellenenergie f [Teil der Wellenlnge, die im Feld der Orbitalgeschwindigkeiten unter der Welle enthalten ist und als Orbitalbewegung am Ort verbleibt

2014-08-01T23:59:59.000Z

22

Ground Motion Workshop  

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

2nd Advanced ICFA Beam Dynamics Workshop 2nd Advanced ICFA Beam Dynamics Workshop on Ground Motion in Future Accelerators November 6 - 9, 2000 SLAC Coordinators: Andrei Seryi & Tor Raubenheimer Proceedings Updated June 26, 2001 Agenda and Presentations Workshop photos Summaries Useful links Poster Goals Introduction to the problems Structure Registration Registered participants Committees Location, Accommodations and Travel Workshop on Ground Motion in Future Accelerators A workshop was held at SLAC that was devoted to ground motion and its effects on future accelerators. Ground motion and vibration can be a limiting effect in synchrotron light sources, hadron circular colliders, and electron/positron linear colliders. Over the last several years, there has been significant progress in the understanding of the ground motion and its effects, however, there are

23

Coupled transverse motion  

SciTech Connect (OSTI)

The magnetic field in an accelerator or a storage ring is usually so designed that the horizontal (x) and the vertical (y) motions of an ion are uncoupled. However, because of imperfections in construction and alignment, some small coupling is unavoidable. In this lecture, we discuss in a general way what is known about the behaviors of coupled motions in two degrees-of-freedom. 11 refs., 6 figs.

Teng, L.C.

1989-01-01T23:59:59.000Z

24

Motion detector and analyzer  

DOE Patents [OSTI]

Method and apparatus are provided for deriving positive and negative Doppler spectrum to enable analysis of objects in motion, and particularly, objects having rotary motion. First and second returned radar signals are mixed with internal signals to obtain an in-phase process signal and a quadrature process signal. A broad-band phase shifter shifts the quadrature signal through 90/degree/ relative to the in-phase signal over a predetermined frequency range. A pair of signals is output from the broad-band phase shifter which are then combined to provide a first side band signal which is functionally related to a negative Doppler shift spectrum. The distinct positive and negative Doppler spectra may then be analyzed for the motion characteristics of the object being examined.

Unruh, W.P.

1987-03-23T23:59:59.000Z

25

Motion Planning ! Jana Kosecka!  

E-Print Network [OSTI]

1! Motion Planning ! Jana Kosecka! Department of Computer Science! ·Discrete planning, graph search://cs.cmu.edu/~motionplanning, Jyh-Ming Lien! Discrete Planning! · Review of some discrete planning methods! · Given state space is discrete) ! · Use well developed search and graph traversal algorithms to find the path! · Path: set

Kosecka, Jana

26

Motion Planning Jana Kosecka  

E-Print Network [OSTI]

1 Motion Planning Jana Kosecka Department of Computer Science · Discrete planning, graph search://cs.cmu.edu/~motionplanning, Jyh-Ming Lien State space · Set of all possible states is represented as graph · Nodes states, links planning ­ generate a set of actions, if the solution exists it must be found in the finite time · Search

Kosecka, Jana

27

Rotational Motion in Nuclei  

Science Journals Connector (OSTI)

...and single-particle motion, but the basic idea of the cranking model has stood its...the schematized SU3 picture. General Theory of Rotation The increasing precision and...pro-vided by the challenge of presenting the theory of rotation as part of a broad view of...

Aage Bohr

1976-07-16T23:59:59.000Z

28

Bibliography 1. Motion Perception  

E-Print Network [OSTI]

of Multiple Variables in a 2D Space, Ph.D. dissertation, University of North Carolina, Chapel Hill, Department for the perception of motion. Journal of the Optical Society of America, A, 2:284-299, February 1985. O. Braddick and Patrick R. Green (1990), Visual Perception: Physiology, Psychology, and Ecology, 2nd edition, Lawrence

Rheingans, Penny

29

Ion kinetic energy conservation and magnetic field strength constancy in multi-fluid solar wind Alfv\\'enic turbulence  

E-Print Network [OSTI]

We investigate properties of the plasma fluid motion in the large amplitude low frequency fluctuations of highly Alfv\\'enic fast solar wind. We show that protons locally conserve total kinetic energy when observed from an effective frame of reference comoving with the fluctuations. For typical properties of the fast wind, this frame can be reasonably identified by alpha particles, which, owing to their drift with respect to protons at about the Alfv\\'en speed along the magnetic field, do not partake in the fluid low frequency fluctuations. Using their velocity to transform proton velocity into the frame of Alfv\\'enic turbulence, we demonstrate that the resulting plasma motion is characterized by a constant absolute value of the velocity, zero electric fields, and aligned velocity and magnetic field vectors as expected for unidirectional Alfv\\'enic fluctuations in equilibrium. We propose that this constraint, via the correlation between velocity and magnetic field in Alfv\\'enic turbulence, is at the origin of ...

Matteini, L; Pantellini, F; Velli, M; Schwartz, S J

2015-01-01T23:59:59.000Z

30

CLEERS Coordination & Joint Development of Benchmark Kinetics...  

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

Kinetic Data CLEERS Coordination & Joint Development of Benchmark Kinetics for LNT & SCR CLEERS Coordination & Development of Catalyst Process Kinetic Data - Pres. 1:...

31

Kinetics Of Carbon Gasification  

Science Journals Connector (OSTI)

Kinetics Of Carbon Gasification ... The steamcarbon reaction, which is the essential reaction of the gasification processes of carbon-based feed stocks (e.g., coal and biomass), produces synthesis gas (H2 + CO), a synthetically flexible, environmentally benign energy source. ... Coal Gasification in CO2 and Steam:? Development of a Steam Injection Facility for High-Pressure Wire-Mesh Reactors ...

C. W. Zielke; Everett. Gorin

1957-03-01T23:59:59.000Z

32

Perception for Human Motion Understanding  

Science Journals Connector (OSTI)

The fact that people are embodied places powerful constraints on their motion. By leveraging these constraints, we can build systems to perceive human motion that are fast and robust. More importantly, by unde...

Christopher R. Wren

2005-01-01T23:59:59.000Z

33

Kinetic Alfven double layer formed by electron viscosity  

SciTech Connect (OSTI)

The effect of the electron viscosity on the kinetic Alfven solitary wave is investigated. It is found that small electron viscosity changes the electron motion along the magnetic field producing a boundary layer, and thus that in a low beta electron-ion plasma({beta} Much-Less-Than m{sub e}/m{sub i}), an obliquely propagating kinetic solitary Alfven wave can become a double layer. This double layer can exist in the sub-Alfvenic and super-Alfvenic regimes. The length scale of density drop for this double layer is on the order of that of the conventional kinetic solitary Alfven wave, and thus this double layer can accelerate electrons on a very short length scale.

Woo, M. H.; Ryu, C.-M. [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Choi, C. R. [Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305-701 (Korea, Republic of)

2012-07-15T23:59:59.000Z

34

Kinematics and kinetics of normal and planovalgus feet during walking  

Science Journals Connector (OSTI)

Abstract Planovalgus deformity is prevalent in cerebral palsy patients, but very few studies have quantitatively reported differences between planovalgus and normal foot function. Intersegmental foot kinetics have not been reported in this population. In this study, a three segment (hindfoot, forefoot, hallux) kinematic and kinetic model was applied to typically developing (n=10 subjects, 20 feet) and planovalgus (n=10 subjects, 18 feet) pediatric subjects by two clinicians for each subject. Intra-clinician and inter-clinician repeatability of kinematic variables have been previously reported. Variability of kinetic outcomes (joint moments and power) is reported and found to be equally repeatable in typically developing and planovalgus groups. Kinematic differences in the planovalgus foot including excessive ankle eversion (valgus) and plantarflexion, reduced ankle flexion range of motion, and increased midfoot joint dorsiflexion and pronation reflected the reported pathology. Contrary to clinical expectations no significant difference was observed in midfoot flexion or ankle eversion ranges of motion. Kinetic differences in planovalgus feet compared to typically developing feet included reduced ankle plantarflexion moment, ankle power and midfoot joint power.

Prabhav Saraswat; Bruce A. MacWilliams; Roy B. Davis; Jacques L. DAstous

2014-01-01T23:59:59.000Z

35

LLNL Chemical Kinetics Modeling Group  

SciTech Connect (OSTI)

The LLNL chemical kinetics modeling group has been responsible for much progress in the development of chemical kinetic models for practical fuels. The group began its work in the early 1970s, developing chemical kinetic models for methane, ethane, ethanol and halogenated inhibitors. Most recently, it has been developing chemical kinetic models for large n-alkanes, cycloalkanes, hexenes, and large methyl esters. These component models are needed to represent gasoline, diesel, jet, and oil-sand-derived fuels.

Pitz, W J; Westbrook, C K; Mehl, M; Herbinet, O; Curran, H J; Silke, E J

2008-09-24T23:59:59.000Z

36

Brownian motion and magnetism  

Science Journals Connector (OSTI)

We present an interesting connection between Brownian motion and magnetism. We use this to determine the distribution of areas enclosed by the path of a particle diffusing on a sphere. In addition, we find a bound on the free energy of an arbitrary system of spinless bosons in a magnetic field. The work presented here is expected to shed light on polymer entanglement, depolarized light scattering, and magnetic behavior of spinless bosons.

Supurna Sinha and Joseph Samuel

1994-11-01T23:59:59.000Z

37

Pit disassembly motion control  

SciTech Connect (OSTI)

A Department of Energy (DOE) Pit Disassembly and Conversion Facility (PDCF) is being designed for the Savannah River Site in South Carolina. The facility will recover plutonium from excess nuclear weapon pits defined in START II and START III treaties. The plutonium will be stored and used to produce mixed oxide reactor fuel at another new DOE facility. Because of radiation dose issues, much of the pit disassembly work and material transfer will be automated. Automated material handling systems will interface with disassembly lathes, conversion reactors that produce oxide for storage, robotic container welding stations, vault retrieval systems, and nondestructive assay (NDA) instrumentation. The goal is to use common motion control hardware for material transfer and possibly common motion controllers for the unique PDCF systems. The latter is complicated by the different directions manufactures are considering for distributed control, such as Firewire, SERCOS, etc., and by the unique control requirements of machines such as lathes compared to controls for an integrated NDA system. The current design approach is to standardize where possible, use network cables to replace wire bundles where possible, but to first select hardware and motion controllers that meet specific machine or process requirements.

Christensen, L. (Lowell); Pittman, P. C. (Pete C.)

2001-01-01T23:59:59.000Z

38

Kinetic equilibrium and relativistic thermodynamics  

E-Print Network [OSTI]

Relativistic thermodynamics is treated from the point of view of kinetic theory. It is shown that the generalized J\\"uttner distribution suggested in [1] is compatible with kinetic equilibrium. The requirement of compatibility of kinetic and thermodynamic equilibrium reveals several generalizations of the Gibbs relation where the velocity field is an independent thermodynamic variable.

P. Vn

2011-02-01T23:59:59.000Z

39

Improving alternative fuel utilization: detailed kinetic combustion...  

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

alternative fuel utilization: detailed kinetic combustion modeling & experimental testing Improving alternative fuel utilization: detailed kinetic combustion modeling &...

40

Chemical kinetics modeling  

SciTech Connect (OSTI)

This project emphasizes numerical modeling of chemical kinetics of combustion, including applications in both practical combustion systems and in controlled laboratory experiments. Elementary reaction rate parameters are combined into mechanisms which then describe the overall reaction of the fuels being studied. Detailed sensitivity analyses are used to identify those reaction rates and product species distributions to which the results are most sensitive and therefore warrant the greatest attention from other experimental and theoretical research programs. Experimental data from a variety of environments are combined together to validate the reaction mechanisms, including results from laminar flames, shock tubes, flow systems, detonations, and even internal combustion engines.

Westbrook, C.K.; Pitz, W.J. [Lawrence Livermore National Laboratory, CA (United States)

1993-12-01T23:59:59.000Z

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


41

Motion of floating wind turbines.  

E-Print Network [OSTI]

?? Motion of floating wind turbines has been studied. A literature study on different concepts and what tools are available for simulating them is presented. (more)

Linde, Brge

2010-01-01T23:59:59.000Z

42

Motion capture based motion analysis and motion synthesis for human-like character animation.  

E-Print Network [OSTI]

??Motion capture technology is recognised as a standard tool in the computer animation pipeline. It provides detailed movement for animators; however, it also introduces problems (more)

Xiao, Zhidong

2009-01-01T23:59:59.000Z

43

Motion Capture Technologies Jessica Hodgins  

E-Print Network [OSTI]

a few dof) #12;Production Pipeline #12;What is captured? · Dynamic motions? House of Moves #12;What is captured? · Scale? Motion Analysis #12;What is captured? · Non-rigid objects? House of Moves #12;What is captured? · Props often cause problems ­ Ball in pingpong ­ Fly fishing ­ Sword · Passive behaviors

Treuille, Adrien

44

Motion reconstruction using sparse accelerometer data  

Science Journals Connector (OSTI)

The development of methods and tools for the generation of visually appealing motion sequences using prerecorded motion capture data has become an important research area in computer animation. In particular, data-driven approaches have been used for ... Keywords: Motion capture, acceleration data, motion reconstruction, motion retrieval, online control

Jochen Tautges; Arno Zinke; Bjrn Krger; Jan Baumann; Andreas Weber; Thomas Helten; Meinard Mller; Hans-Peter Seidel; Bernd Eberhardt

2011-05-01T23:59:59.000Z

45

Kinetic dielectric decrement revisited: phenomenology of finite ion concentrations  

E-Print Network [OSTI]

With the help of a recently developed non-equilibrium approach, we investigate the ionic strength dependence of the Hubbard--Onsager dielectric decrement. We compute the depolarization of water molecules caused by the motion of ions in sodium chloride solutions from the dilute regime (0.035 M) up close to the saturation concentration (4.24 M), and find that the kinetic decrement displays a strong nonmonotonic behavior, in contrast to the prediction of available models. We introduce a phenomenological modification of the Hubbard--Onsager continuum theory, that takes into account the screening due to the ionic cloud at mean field level, and, is able to describe the kinetic decrement at high concentrations including the presence of a pronounced minimum.

Marcello Sega; Sofia Kantorovich; Axel Arnold

2014-07-16T23:59:59.000Z

46

Motion Measurement for Synthetic Aperture Radar.  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) measures radar soundings from a set of locations typically along the flight path of a radar platform vehicle. Optimal focusing requires precise knowledge of the sounding source locations in 3 - D space with respect to the target scene. Even data driven focusing techniques (i.e. autofocus) requires some degree of initial fidelity in the measurements of the motion of the radar. These requirements may be quite stringent especially for fine resolution, long ranges, and low velocities. The principal instrument for measuring motion is typically an Inertial Measurement Unit (IMU), but these instruments have inherent limi ted precision and accuracy. The question is %22How good does an IMU need to be for a SAR across its performance space?%22 This report analytically relates IMU specifications to parametric requirements for SAR. - 4 - Acknowledgements Th e preparation of this report is the result of a n unfunded research and development activity . Although this report is an independent effort, it draws heavily from limited - release documentation generated under a CRADA with General Atomics - Aeronautical System, Inc. (GA - ASI), and under the Joint DoD/DOE Munitions Program Memorandum of Understanding. Sandia National Laboratories is a multi - program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of En ergy's National Nuclear Security Administration under contract DE - AC04 - 94AL85000.

Doerry, Armin W.

2015-01-01T23:59:59.000Z

47

Kinetic Energy Recovery System for Sailing Yachts: Preliminary Experimental Results  

Science Journals Connector (OSTI)

Abstract SEAKERS (SEA Kinetic Energy Recovery System) is a research project, funded within the 7th EU Framework Program, whose goal is to develop an innovative device consisting in a model of a kinetic energy recovery system for sailing yachts, based on the conversion of wave-induced boat oscillations (heave, pitch and roll) into electric energy by means of a linear generator. The device aims at recovering as much kinetic energy as possible from the natural movements of a sailing yacht on the sea, therefore taking the view of a boat as a moving wave energy converter with energy harvesting capability. The boat's motions can be vertical oscillations due to the buoyancy in the presence of sea waves and rolling and pitching motions originated both by sailing in wavy waters and by the normal boat dynamics due to the sails propulsion. This paper presents a brief description of the prototype of linear generator, which has been developed in the SEAKERS project, and reports about the first experimental tests carried out on the prototype. Two kind of tests have been performed on the generator, which can be classified as a linear permanent magnet switched reluctance generator: first, the possibility to use the prototype like an actuator has been investigated, in order to force the cursor to have a motion in phase with the external forcing, so as to recover more energy when the machine acts as generator. The behaviour of the actuator was examined in a static way, measuring the forces between cursor and stator, varying relative position of cursor and current in the coils. The second kind of tests has been performed to analyse the efficiency of the generator, for different external loads and translational velocities. The trend shown in these tests are then explained by an analytical model based on an electromagnetic circuit.

Giuseppe Leo Guizzi; Michele Manno; Guido Manzi; Marco Salvatori; Domenico Serpella

2014-01-01T23:59:59.000Z

48

Motion Compensation Via Redundant-Wavelet Multihypothesis  

E-Print Network [OSTI]

-based implementation. Index Terms-- multihypothesis motion compensation, redun- dant wavelet transform, phaseMotion Compensation Via Redundant-Wavelet Multihypothesis James E. Fowler, Senior Member, IEEE, Suxia Cui, Member, IEEE, and Yonghui Wang, Member, IEEE Abstract-- Multihypothesis motion compensation

Fowler, James E.

49

[Grain boundary and interface kinetics during ion irradiation  

SciTech Connect (OSTI)

Proposed here is renewed support of a research program focused on interface motion and phase transformation during ion irradiation, with emphasis on elemental semiconductors. Broadly speaking, the aims of this program are to explore defect kinetics in amorphous and crystalline semiconductors, and to relate defect dynamics to interface motion and phase transformations. Over the last three years, we initiated a program under DOE support to explore crystallization and amorphization of elemental semiconductors under irradiation. This research has enabled new insights about the nature of defects in amorphous semiconductors and about microstructural evolution in the early stages of crystallization. In addition, we have demonstrated almost arbitrary control over the relative rates of crystal nucleation and crystal growth in silicon. As a result, the impinged grain microstructure of thin (100 nm) polycrystalline films crystallized under irradiation can be controlled with grain sizes ranging from a few nanometers to several micrometers, which may have interesting technological implications.

Atwater, H.A.

1991-12-31T23:59:59.000Z

50

(Grain boundary and interface kinetics during ion irradiation)  

SciTech Connect (OSTI)

Proposed here is renewed support of a research program focused on interface motion and phase transformation during ion irradiation, with emphasis on elemental semiconductors. Broadly speaking, the aims of this program are to explore defect kinetics in amorphous and crystalline semiconductors, and to relate defect dynamics to interface motion and phase transformations. Over the last three years, we initiated a program under DOE support to explore crystallization and amorphization of elemental semiconductors under irradiation. This research has enabled new insights about the nature of defects in amorphous semiconductors and about microstructural evolution in the early stages of crystallization. In addition, we have demonstrated almost arbitrary control over the relative rates of crystal nucleation and crystal growth in silicon. As a result, the impinged grain microstructure of thin (100 nm) polycrystalline films crystallized under irradiation can be controlled with grain sizes ranging from a few nanometers to several micrometers, which may have interesting technological implications.

Atwater, H.A.

1991-01-01T23:59:59.000Z

51

CLEERS Coordination & Joint Development of Benchmark Kinetics...  

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

CLEERS Coordination & Joint Development of Benchmark Kinetics for LNT & SCR CLEERS Coordination & Joint Development of Benchmark Kinetics for LNT & SCR 2012 DOE Hydrogen and Fuel...

52

CLEERS Coordination & Joint Development of Benchmark Kinetics...  

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

Joint Development of Benchmark Kinetics for LNT & SCR CLEERS Coordination & Joint Development of Benchmark Kinetics for LNT & SCR 2011 DOE Hydrogen and Fuel Cells Program, and...

53

CLEERS Coordination & Development of Catalyst Process Kinetic...  

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

CLEERS Coordination & Development of Catalyst Process Kinetic Data CLEERS Coordination & Development of Catalyst Process Kinetic Data 2009 DOE Hydrogen Program and Vehicle...

54

Direct Observation of Aggregative Nanoparticle Growth: Kinetic...  

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

Aggregative Nanoparticle Growth: Kinetic Modeling of the Size Distribution and Growth Rate. Direct Observation of Aggregative Nanoparticle Growth: Kinetic Modeling of the Size...

55

Multidimensional simulation and chemical kinetics development...  

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

Developing chemical kinetic mechanisms and applying them to simulating engine combustion processes. deer09aceves.pdf More Documents & Publications Chemical Kinetic Research on...

56

The effect of heart motion on parameter bias in dynamic cardiac SPECT  

SciTech Connect (OSTI)

Dynamic cardiac SPECT can be used to estimate kinetic rate parameters which describe the wash-in and wash-out of tracer activity between the blood and the myocardial tissue. These kinetic parameters can in turn be correlated to myocardial perfusion. There are, however, many physical aspects associated with dynamic SPECT which can introduce errors into the estimates. This paper describes a study which investigates the effect of heart motion on kinetic parameter estimates. Dynamic SPECT simulations are performed using a beating version of the MCAT phantom. The results demonstrate that cardiac motion has a significant effect on the blood, tissue, and background content of regions of interest. This in turn affects estimates of wash-in, while it has very little effect on estimates of wash-out. The effect of cardiac motion on parameter estimates appears not to be as great as effects introduced by photon noise and geometric collimator response. It is also shown that cardiac motion results in little extravascular contamination of the left ventricle blood region of interest.

Ross, S.G.; Gullberg, G.T. [Univ. of Utah, Salt Lake City, UT (United States); Huesman, R.H. [Lawrence Berkeley Lab., CA (United States); [Univ. of California, Berkeley, CA (United States)

1996-12-31T23:59:59.000Z

57

Virtual Test Environment for Motion Capture Shoots.  

E-Print Network [OSTI]

?? This master thesis presents the design of an implementation of a working prototype for an augmented motion capture acting environment. Motion capture (MoCap), the (more)

Redavid, Claudio

2012-01-01T23:59:59.000Z

58

Reciprocal Relations Between Kinetic Curves  

E-Print Network [OSTI]

We study coupled irreversible processes. For linear or linearized kinetics with microreversibility, $\\dot{x}=Kx$, the kinetic operator $K$ is symmetric in the entropic inner product. This form of Onsager's reciprocal relations implies that the shift in time, $\\exp (Kt)$, is also a symmetric operator. This generates reciprocity relations between kinetic curves. For example, for the Master equation, if we start the process from the $i$th pure state and measure the probability $p_j(t)$ of the $j$th state ($j\

Yablonsky, G S; Constales, D; Galvita, V; Marin, G B

2010-01-01T23:59:59.000Z

59

Motion at low Reynolds number  

E-Print Network [OSTI]

The work described in this thesis centers on inertialess motion at low Reynolds numbers at the crossroad between biofluids and microfluids. Here we address questions regarding locomotion of micro-swimmers, transport of ...

Tam, Daniel See Wai, 1980-

2008-01-01T23:59:59.000Z

60

Stochastic Motion by Mean Curvature  

E-Print Network [OSTI]

Motion by mean curvature, in which the normal velocity of the interface simply equals its ... where H n?1 denotes the Hausdorff (n ? 1)-dimensional measure and h is the ..... following notations which are standard in geometric measure theory:...

Springer Verlag Heidelberg #4 2048 1996 Dec 15 10:16:45

1998-11-13T23:59:59.000Z

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


61

Chemical Looping Combustion Kinetics  

SciTech Connect (OSTI)

One of the most promising methods of capturing CO{sub 2} emitted by coal-fired power plants for subsequent sequestration is chemical looping combustion (CLC). A powdered metal oxide such as NiO transfers oxygen directly to a fuel in a fuel reactor at high temperatures with no air present. Heat, water, and CO{sub 2} are released, and after H{sub 2}O condensation the CO{sub 2} (undiluted by N{sub 2}) is ready for sequestration, whereas the nickel metal is ready for reoxidation in the air reactor. In principle, these processes can be repeated endlessly with the original nickel metal/nickel oxide participating in a loop that admits fuel and rejects ash, heat, and water. Our project accumulated kinetic rate data at high temperatures and elevated pressures for the metal oxide reduction step and for the metal reoxidation step. These data will be used in computational modeling of CLC on the laboratory scale and presumably later on the plant scale. The oxygen carrier on which the research at Utah is focused is CuO/Cu{sub 2}O rather than nickel oxide because the copper system lends itself to use with solid fuels in an alternative to CLC called 'chemical looping with oxygen uncoupling' (CLOU).

Edward Eyring; Gabor Konya

2009-03-31T23:59:59.000Z

62

Pebble-bed pebble motion: Simulation and Applications  

SciTech Connect (OSTI)

Pebble bed reactors (PBR) have moving graphite fuel pebbles. This unique feature provides advantages, but also means that simulation of the reactor requires understanding the typical motion and location of the granular flow of pebbles. This report presents a method for simulation of motion of the pebbles in a PBR. A new mechanical motion simulator, PEBBLES, efficiently simulates the key elements of motion of the pebbles in a PBR. This model simulates gravitational force and contact forces including kinetic and true static friction. It's used for a variety of tasks including simulation of the effect of earthquakes on a PBR, calculation of packing fractions, Dancoff factors, pebble wear and the pebble force on the walls. The simulator includes a new differential static friction model for the varied geometries of PBRs. A new static friction benchmark was devised via analytically solving the mechanics equations to determine the minimum pebble-to-pebble friction and pebble-to-surface friction for a five pebble pyramid. This pyramid check as well as a comparison to the Janssen formula was used to test the new static friction equations. Because larger pebble bed simulations involve hundreds of thousands of pebbles and long periods of time, the PEBBLES code has been parallelized. PEBBLES runs on shared memory architectures and distributed memory architectures. For the shared memory architecture, the code uses a new O(n) lock-less parallel collision detection algorithm to determine which pebbles are likely to be in contact. The new collision detection algorithm improves on the traditional non-parallel O(n log(n)) collision detection algorithm. These features combine to form a fast parallel pebble motion simulation. The PEBBLES code provides new capabilities for understanding and optimizing PBRs. The PEBBLES code has provided the pebble motion data required to calculate the motion of pebbles during a simulated earthquake. The PEBBLES code provides the ability to determine the contact forces and the lengths of motion in contact. This information combined with the proper wear coefficients can be used to determine the dust production from mechanical wear. These new capabilities enhance the understanding of PBRs, and the capabilities of the code will allow future improvements in understanding.

Joshua J. Cogliati; Abderrafi M. Ougouag

2011-11-01T23:59:59.000Z

63

Theoretical Studies in Chemical Kinetics  

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

Theoretical Studies in Chemical Kinetics ^ ^ iCi| Theoretical Studies in Chemical Kinetics ^ ^ iCi| under AEC Contract A T (30-1)-3780 " ■ ' Annual Report (1970) Principal In-vestigator: Martin Karpins Institution: Harvard University The research performed under this contract can best be sunmarized under several headings. (a) Alkali-Halideg Alkali-Halide (MX^ M*X*) Exchange Reactions. This project is being continued. A careful study of certain

64

A Kinetic model of crack fusion  

Science Journals Connector (OSTI)

......Research Note A Kinetic model of crack fusion Zbigniew Czechowski Institute of Geophysics...presents a kinetic approach to the problem of fusion of cracks. A kinetic equation for the...repetitive episodes of seismicity. crack fusion|kinetic model|seismicity| References......

Zbigniew Czechowski

1991-02-01T23:59:59.000Z

65

Muon motion in titanium hydride  

Science Journals Connector (OSTI)

Motional narrowing of the transverse-field muon-spin rotation signal has been reported previously for ?-TiHx with x=1.83, 1.97, and 1.99. An analysis of the results for TiH1.99 near room temperature indicates that the mechanism responsible for the motion of the muon out of the octahedral site is thermally activated diffusion with an attempt frequency comparable to the optical vibrations of the lattice. The motional narrowing in TiH1.97 near 500 K is interpreted with the aid of Monte Carlo calculations which simulated the effect of muon and proton motion upon the field-correlation time for the muon. The results of these simulations coupled with published proton nuclear-magnetic-resonance T1 measurements indicate that the field-correlation time for the muon can be explained if the rate of motion for the nearest-neighbor protons is decreased relative to the hopping rate for the unperturbed lattice.

J. R. Kempton; K. G. Petzinger; W. J. Kossler; H. E. Schone; C. E. Stronach

1989-07-01T23:59:59.000Z

66

The Universe Adventure - Galaxial Motion  

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

Bulk Motions of Galaxies Bulk Motions of Galaxies Galaxy Diagram The Structure of a typical Spiral Galaxy. Galaxies are most often found in clusters and are thus subject to gravitational forces from their neighbors. The relative motion that results from these interactions causes deviations from the cosmological principle called bulk flow. Measuring the peculiar velocities enables cosmologists to calculate the masses of interacting galaxies. Using this technique scientists can estimate the total density of matter in the Universe. During the recombination epoch, the Universe had cooled sufficiently for nucleosynthesis to occur. However, this process produces only a few elements, and looking at the abundance of these elements today is indicative of the rate of nucleosynthesis and the amount of baryonic mass

67

Microsoft Word - Motion to Intervene  

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

ELECTRICITY DELIVERY AND ENERGY RELIABILITY ELECTRICITY DELIVERY AND ENERGY RELIABILITY Northern Pass Transmission LLC OE Docket No. PP-371 Application for Presidential Permit MOTION TO INTERVENE Pursuant to Rule 214 of the Rules of Practice and Procedure of the Federal Energy Regulatory Commission (18CFR 385.214) we (Stephen Buzzell and Lelah Sullivan) do hereby file this motion to intervene. In support of this motion, we state as follows: 1. Notices, correspondence and other communications All notices, correspondence, communications and other information concerning this proceeding should be directed to: Stephen Buzzell and Lelah Sullivan, 36 Buzzell Lane, Eliot, ME 03903. Telephone: 207-641-7036, email: 1s2buzzell3@comcast.net. 2. Movant's interest We own a vacation home [43 Gingerbread Rd. ,Easton, NH] that is directly on the right away of the

68

LWZ-0021 Motion to Dismiss  

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

Sandia National Laboratories Sandia National Laboratories DECISION AND ORDER OF THE DEPARTMENT OF ENERGY Motions to Dismiss Names of Petitioners: Sandia National Laboratories L & M Technologies, Inc. Dates of Filing: August 11, 1993 August 17, 1993 Case Numbers: LWZ-0021 LWZ-0022 This determination will consider two Motions to Dismiss filed by Sandia National Laboratories (Sandia) and L & M Technologies, Inc. (L&M) on August 11 and 17, 1993, respectively. In their Motions, Sandia and L&M seek the dismissal of the underlying complaint and hearing request filed by Mr. Ronald A. Sorri (Sorri) under the Department of Energy's Contractor Employee Protection Program. Sorri's present request for a hearing under § 708.9 was filed on June 9, 1993, and it has been assigned Office

69

Motion Processing and From-from-Apparent-Motion in Infancy  

E-Print Network [OSTI]

/VPC) and discrimination paradigms. Infants in both paradigms extracted shape from apparent motion given luminance cues alone, and color and luminance cues co-varying; but failed to extract shape given color cues alone (Studies 1-2). Given only color cues, infants required...

Hirshkowitz, Amy

2014-08-05T23:59:59.000Z

70

Continuous Motion Produced by Vibration  

Science Journals Connector (OSTI)

A special case of motion of this kind was discussed recently by A. T. Jones. In the present note attention is called to a number of other cases in which the precise mechanism is obscure. A simple form of the phenomenon occurs when a mass is made to slip along a rough inclined plane, without loss of contact, by making the plane oscillate. This is examined mathematically. It is found that the motion may be either upwards or downwards, according to the relation between the direction of oscillation and the inclination of the plane. The results have been roughly verified by experiment.

W. B. Morton and A. McKinstry

1927-01-01T23:59:59.000Z

71

Chemical kinetics and combustion modeling  

SciTech Connect (OSTI)

The goal of this program is to gain qualitative insight into how pollutants are formed in combustion systems and to develop quantitative mathematical models to predict their formation rates. The approach is an integrated one, combining low-pressure flame experiments, chemical kinetics modeling, theory, and kinetics experiments to gain as clear a picture as possible of the process in question. These efforts are focused on problems involved with the nitrogen chemistry of combustion systems and on the formation of soot and PAH in flames.

Miller, J.A. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

72

Smoothing of respiratory motion traces for motion-compensated radiotherapy  

SciTech Connect (OSTI)

Purpose: The CyberKnife system has been used successfully for several years to radiosurgically treat tumors without the need for stereotactic fixation or sedation of the patient. It has been shown that tumor motion in the lung, liver, and pancreas can be tracked with acceptable accuracy and repeatability. However, highly precise targeting for tumors in the lower abdomen, especially for tumors which exhibit strong motion, remains problematic. Reasons for this are manifold, like the slow tracking system operating at 26.5 Hz, and using the signal from the tracking camera ''as is''. Since the motion recorded with the camera is used to compensate for system latency by prediction and the predicted signal is subsequently used to infer the tumor position from a correlation model based on x-ray imaging of gold fiducials around the tumor, camera noise directly influences the targeting accuracy. The goal of this work is to establish the suitability of a new smoothing method for respiratory motion traces used in motion-compensated radiotherapy. The authors endeavor to show that better prediction--With a lower rms error of the predicted signal--and/or smoother prediction is possible using this method. Methods: The authors evaluated six commercially available tracking systems (NDI Aurora, PolarisClassic, Polaris Vicra, MicronTracker2 H40, FP5000, and accuTrack compact). The authors first tracked markers both stationary and while in motion to establish the systems' noise characteristics. Then the authors applied a smoothing method based on the a trous wavelet decomposition to reduce the devices' noise level. Additionally, the smoothed signal of the moving target and a motion trace from actual human respiratory motion were subjected to prediction using the MULIN and the nLMS{sub 2} algorithms. Results: The authors established that the noise distribution for a static target is Gaussian and that when the probe is moved such as to mimic human respiration, it remains Gaussian with the exception of the FP5000 and the Aurora systems. The authors also showed that the proposed smoothing method can indeed be used to filter noise. The signal's jitter dropped by as much as 95% depending on the tracking system employed. Subsequently, the 3D prediction error (rms) for a prediction horizon of 150 ms on a synthetic signal dropped by up to 37% when using a normalized LMS prediction algorithm (nLMS{sub 2}) and hardly changed when using a MULIN algorithm. When smoothing a real signal obtained in our laboratory, the improvement of prediction was similar: Up to 30% for both the nLMS{sub 2} and the best MULIN algorithm. The authors also found a noticeable increase in smoothness of the predicted signal, the relative jitter dropped by up to 95% on the real signal, and on the simulated signal. Conclusions: In conclusion, the authors can say that preprocessing of marker data is very useful in motion-compensated radiotherapy since the quality of prediction increases. This will result in better performance of the correlation model. As a side effect, since the prediction of a preprocessed signal is also less noisy, the authors expect less robot vibration resulting in better targeting accuracy and less strain on the robot gears.

Ernst, Floris; Schlaefer, Alexander; Schweikard, Achim [Institute for Robotics and Cognitive Systems, University of Luebeck, Ratzeburger Allee 160, Luebeck SH 23538 (Germany)

2010-01-15T23:59:59.000Z

73

Travelling graphs for the forced mean curvature motion in an arbitrary space  

E-Print Network [OSTI]

motion whose asymptotics is driven by . We also describe in terms of a probability measure on SN-2. R´ecrivons aussi en terme d'une mesure de probabilit~A c sur la sph~A¨re SN-2. Keywords: forced mean curvature movement; eikonal equation; Hamilton-Jacobi equations; viscosity solution; reaction diffusion equations

Boyer, Edmond

74

New Methods in Motion Tracking to Generate Motion-Corrected Tomographi...  

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

Analysis Energy Analysis Find More Like This Return to Search New Methods in Motion Tracking to Generate Motion-Corrected Tomographic Images Oak Ridge National Laboratory...

75

Desorption Kinetics of Methanol, Ethanol, and Water from Graphene...  

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

Desorption Kinetics of Methanol, Ethanol, and Water from Graphene. Desorption Kinetics of Methanol, Ethanol, and Water from Graphene. Abstract: The desorption kinetics of methanol,...

76

Operational Analysis of Multiregional Nuclear Reactor Kinetics  

Science Journals Connector (OSTI)

......Operational Analysis of Multiregional Nuclear Reactor Kinetics NASSAR H. S. HAIDAR...analytically for a multiregional nuclear reactor whose subregions are of arbitrary...Operational Analysis of Multiregional Nuclear Reactor Kinetics NASSAU H. S. HAIDAR......

NASSAR H. S. HAIDAR

1983-05-01T23:59:59.000Z

77

Synthesizing Human Motion from Intuitive Constraints  

Science Journals Connector (OSTI)

Many compelling applications would become feasible if novice users had the ability to synthesize high quality human motion based only on a simple sketch and ... proven to be a powerful tool for synthesizing human motion

Alla Safonova; Jessica K. Hodgins

2008-01-01T23:59:59.000Z

78

Motions Effect for Crowd Modeling Aboard Ships  

Science Journals Connector (OSTI)

Pre-computed ship-motion history has been used in the...inclination...steering behavior as simple means for considering the effects of ship motion on simulated passengers movement. This ... of the phenomenon, th...

K. V. Kostas; A.-A. I. Ginnis; C. G. Politis

2014-01-01T23:59:59.000Z

79

Video looping of human cyclic motion  

E-Print Network [OSTI]

In this thesis, a system called Video Looping is developed to analyze human cyclic motions. Video Looping allows users to extract human cyclic motion from a given video sequence. This system analyzes similarities from a large amount of live footage...

Choi, Hye Mee

2004-09-30T23:59:59.000Z

80

Practical Color-Based Motion Capture  

E-Print Network [OSTI]

Motion capture systems have been widely used for high quality content creation and virtual reality but are rarely used in consumer applications due to their price and setup cost. In this paper, we propose a motion capture ...

Wang, Robert

2010-09-10T23:59:59.000Z

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


81

Diagnosing Forecast Errors in Tropical Cyclone Motion  

Science Journals Connector (OSTI)

This paper reports on the development of a diagnostic approach that can be used to examine the sources of numerical model forecast error that contribute to degraded tropical cyclone (TC) motion forecasts. Tropical cyclone motion forecasts depend ...

Thomas J. Galarneau Jr.; Christopher A. Davis

2013-02-01T23:59:59.000Z

82

LWD-0008 Motion for Discovery  

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

Ronald A. Sorri Ronald A. Sorri DECISION AND ORDER OF THE DEPARTMENT OF ENERGY Motions for Discovery Supplemental Order Name of Petitioner: Ronald A. Sorri L&M Technologies, Inc. Ronald A. Sorri Dates of Filing: September 24, 1993 September 27, 1993 October 12, 1993 Case Numbers: LWD-0008 LWD-0009 LWX-0011 This determination will consider two requests for discovery filed with the Office of Hearings and Appeals (OHA) on September 24 and 27, 1993, by Ronald A. Sorri (Sorri) and L&M Technologies, Inc. (L&M), respectively. These motions concern the hearing requested by Sorri under the Department of Energy's Contractor Employee Protection Program, 10 C.F.R. Part 708, on June 9, 1993 (OHA Case No. LWA-0001). The DOE Contractor Employee Protection Program and the Sorri proceeding are described in a

83

KINETIC ROUGHENING PHENOMENA, STOCHASTIC GROWTH, DIRECTED  

E-Print Network [OSTI]

KINETIC ROUGHENING PHENOMENA, STOCHASTIC GROWTH, DIRECTED POLYMERS AND ALL THAT Aspects 254 (1995) 215-414 Kinetic roughening phenomena, stochastic growth, directed polymers and all that for the nonlinear term 3.2. Dynamic RG analysis 3.3. A worthy detour: kinetic roughening with conservation law 3

Halpin-Healy, Tim

84

Slow Sorption Kinetics of Pentachlorophenol on Soil  

E-Print Network [OSTI]

Slow Sorption Kinetics of Pentachlorophenol on Soil: Concentration Effects J O H N P . D I V I N C of Delaware, Newark, Delaware 19717-1303 We investigated the sorption kinetics of pentachlorophenol (PCP in sorption. The onset of the slow sorption kinetics was also concentration dependent. At higher PCP

Sparks, Donald L.

85

14CME Kinetic Energy and Mass Kinetic energy is the energy that a  

E-Print Network [OSTI]

14CME Kinetic Energy and Mass Kinetic energy is the energy that a body has by virtue of its mass the table by determining the value of the missing entries using the formula for Kinetic Energy. Problem 2: What is the minimum and maximum range for the observed kinetic energies for the 10 CMEs? The largest

86

RHIC stochastic cooling motion control  

SciTech Connect (OSTI)

Relativistic Heavy Ion Collider (RHIC) beams are subject to Intra-Beam Scattering (IBS) that causes an emittance growth in all three-phase space planes. The only way to increase integrated luminosity is to counteract IBS with cooling during RHIC stores. A stochastic cooling system for this purpose has been developed, it includes moveable pick-ups and kickers in the collider that require precise motion control mechanics, drives and controllers. Since these moving parts can limit the beam path aperture, accuracy and reliability is important. Servo, stepper, and DC motors are used to provide actuation solutions for position control. The choice of motion stage, drive motor type, and controls are based on needs defined by the variety of mechanical specifications, the unique performance requirements, and the special needs required for remote operations in an accelerator environment. In this report we will describe the remote motion control related beam line hardware, position transducers, rack electronics, and software developed for the RHIC stochastic cooling pick-ups and kickers.

Gassner, D.; DeSanto, L.; Olsen, R.H.; Fu, W.; Brennan, J.M.; Liaw, CJ; Bellavia, S.; Brodowski, J.

2011-03-28T23:59:59.000Z

87

Estimating The Thermodynamics And Kinetics Of Chlorinated Hydrocarbon...  

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

Estimating The Thermodynamics And Kinetics Of Chlorinated Hydrocarbon Degradation. Estimating The Thermodynamics And Kinetics Of Chlorinated Hydrocarbon Degradation. Abstract: Many...

88

Comparison between hybrid and fully kinetic models of asymmetric magnetic reconnection: Coplanar and guide field configurations  

SciTech Connect (OSTI)

Magnetic reconnection occurring in collisionless environments is a multi-scale process involving both ion and electron kinetic processes. Because of their small mass, the electron scales are difficult to resolve in numerical and satellite data, it is therefore critical to know whether the overall evolution of the reconnection process is influenced by the kinetic nature of the electrons, or is unchanged when assuming a simpler, fluid, electron model. This paper investigates this issue in the general context of an asymmetric current sheet, where both the magnetic field amplitude and the density vary through the discontinuity. A comparison is made between fully kinetic and hybrid kinetic simulations of magnetic reconnection in coplanar and guide field systems. The models share the initial condition but differ in their electron modeling. It is found that the overall evolution of the system, including the reconnection rate, is very similar between both models. The best agreement is found in the guide field system, which confines particle better than the coplanar one, where the locality of the moments is violated by the electron bounce motion. It is also shown that, contrary to the common understanding, reconnection is much faster in the guide field system than in the coplanar one. Both models show this tendency, indicating that the phenomenon is driven by ion kinetic effects and not electron ones.

Aunai, Nicolas; Hesse, Michael; Kuznetsova, Maria; Black, Carrie; Evans, Rebekah [Space Weather Laboratory, Code 674, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States); Zenitani, Seiji [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Smets, Roch [Laboratoire de Physique des Plasmas, Universite Pierre et Marie Curie, Ecole polytechnique, route de Palaiseau, 91128 Palaiseau Cedex (France)

2013-02-15T23:59:59.000Z

89

Visualizing motion in potential wells  

Science Journals Connector (OSTI)

The concept of potential-energy diagrams is of fundamental importance in the study of quantum physics. Yet students are rarely exposed to this powerful alternative description in introductory classes and thus have difficulty comprehending its significance when they encounter it in beginning-level quantum courses. We describe a learning unit that incorporates a sequence of computer-interfaced experiments using dynamics or air-track systems. This unit is designed to make the learning of potential-energy diagrams less abstract. Students begin by constructing the harmonic or square-well potential diagrams using either the velocity data and assuming conservation of energy or the force-displacement graph for the elasticinteraction of an object constrained by springs or bouncing off springy blocks. Then they investigate the motion of a rider magnetinteracting with a configuration of field magnets and plot directly the potential-energy diagrams using a magnetic field sensor. The ease of measurement allows exploring the motion in a large variety of potential shapes in a short duration class.

Pratibha Jolly; Dean Zollman; N. Sanjay Rebello; Albena Dimitrova

1998-01-01T23:59:59.000Z

90

Hydrogen Atom in Relativistic Motion  

E-Print Network [OSTI]

The Lorentz contraction of bound states in field theory is often appealed to in qualitative descriptions of high energy particle collisions. Surprisingly, the contraction has not been demonstrated explicitly even in simple cases such as the hydrogen atom. It requires a calculation of wave functions evaluated at equal (ordinary) time for bound states in motion. Such wave functions are not obtained by kinematic boosts from the rest frame. Starting from the exact Bethe-Salpeter equation we derive the equal-time wave function of a fermion-antifermion bound state in QED, i.e., positronium or the hydrogen atom, in any frame to leading order in alpha. We show explicitly that the bound state energy transforms as the fourth component of a vector and that the wave function of the fermion-antifermion Fock state contracts as expected. Transverse photon exchange contributes at leading order to the binding energy of the bound state in motion. We study the general features of the corresponding fermion-antifermion-photon Fock states, and show that they do not transform by simply contracting. We verify that the wave function reduces to the light-front one in the infinite momentum frame.

M. Jarvinen

2005-04-11T23:59:59.000Z

91

ESS 2012 Peer Review - Amber Kinetics Flywheel Energy Storage Demo - Ed Chiao, Amber Kinetics  

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

amber_kinetics amber_kinetics DOE Peer Review September 2012 Ed Chiao, CEO amber_kinetics Amber Kinetics: Our Flywheel History Start-up launched in 2009, Stanford University Cleantech Entrepreneurship class Established a technology licensing & flywheel development partnership with LLNL; Amber Kinetics identified new material & lower-cost rotor designs for commercialization Awarded a Smart Grid Energy Storage Demonstration grant award for flywheels Awarded a matching grant for development & demonstration of flywheel technology Stanford University Lawrence Livermore National Laboratory U.S. Department of Energy California Energy Commission World-class institutions | innovative, deep flywheel technology owned by Amber Amber Kinetics, Inc. - Confidential and Proprietary, All Rights Reserved

92

Oxidation kinetics of aluminum diboride  

SciTech Connect (OSTI)

The oxidation characteristics of aluminum diboride (AlB{sub 2}) and a physical mixture of its constituent elements (Al+2B) were studied in dry air and pure oxygen using thermal gravimetric analysis to obtain non-mechanistic kinetic parameters. Heating in air at a constant linear heating rate of 10 C/min showed a marked difference between Al+2B and AlB{sub 2} in the onset of oxidation and final conversion fraction, with AlB{sub 2} beginning to oxidize at higher temperatures but reaching nearly complete conversion by 1500 C. Kinetic parameters were obtained in both air and oxygen using a model-free isothermal method at temperatures between 500 and 1000 C. Activation energies were found to decrease, in general, with increasing conversion for AlB{sub 2} and Al+2B in both air and oxygen. AlB{sub 2} exhibited O{sub 2}-pressure-independent oxidation behavior at low conversions, while the activation energies of Al+2B were higher in O{sub 2} than in air. Differences in the composition and morphology between oxidized Al+2B and AlB{sub 2} suggested that Al{sub 2}O{sub 3}B{sub 2}O{sub 3} interactions slowed Al+2B oxidation by converting Al{sub 2}O{sub 3} on aluminum particles into a Al{sub 4}B{sub 2}O{sub 9} shell, while the same Al{sub 4}B{sub 2}O{sub 9} developed a needle-like morphology in AlB{sub 2} that reduced oxygen diffusion distances and increased conversion. The model-free kinetic analysis was critical for interpreting the complex, multistep oxidation behavior for which a single mechanism could not be assigned. At low temperatures, moisture increased the oxidation rate of Al+2B and AlB{sub 2}, but both appear to be resistant to oxidation in cool, dry environments. - Graphical abstract: Isothermal kinetic data for AlB{sub 2} in air, showing a constantly decreasing activation energy with increasing conversion. Model-free analysis allowed for the calculation of global kinetic parameters despite many simultaneous mechanisms occurring concurrently. (a) Timetemperature plots, (b) conversion as a function of time, (c) Arrhenius plots used to calculate activation energies, and (d) activation energy as a function of conversion. Display Omitted - Highlights: First reported kinetic parameters for AlB{sub 2} and Al+2B oxidation in air and O{sub 2}. Possible mechanism of enhanced boron combustion presented. Moisture sensitivity shown to be problematic for AlB{sub 2}, less for Al+2B.

Whittaker, Michael L., E-mail: michaelwhittaker2016@u.northwestern.edu [Department of Materials Science and Engineering, University of Utah, 122S. Central Campus Drive, Salt Lake City, UT 84112 (United States); Sohn, H.Y. [Department of Metallurgical Engineering, University of Utah, 135S 1460 E, Rm 00412, Salt Lake City, UT 84112 (United States); Cutler, Raymond A. [Ceramatec, Inc., 2425S. 900W., Salt Lake City, UT 84119 (United States)

2013-11-15T23:59:59.000Z

93

Coupled simulation of kinetic pedestal growth and MHD ELM crash  

SciTech Connect (OSTI)

Edge pedestal height and the accompanying ELM crash are critical elements of ITER physics yet to be understood and predicted through high performance computing. An entirely self-consistent first principles simulation is being pursued as a long term research goal, and the plan is planned for completion in time for ITER operation. However, a proof-of-principle work has already been established using a computational tool that employs the best first principles physics available at the present time. A kinetic edge equilibrium code XGC0, which can simulate the neoclassically dominant pedestal growth from neutral ionization (using a phenomenological residual turbulence diffusion motion superposed upon the neoclassical particle motion) is coupled to an extended MHD code M3D, which can perform the nonlinear ELM crash. The stability boundary of the pedestal is checked by an ideal MHD linear peeling-ballooning code, which has been validated against many experimental data sets for the large scale (type I) ELMs onset boundary. The coupling workflow and scientific results to be enabled by it are described.

Park, G. [New York University; Cummings, J. [California Institute of Technology, University of California, Davis; Chang, C. S. [New York University; Klasky, Scott A [ORNL; Ku, S. [New York University; Podhorszki, Norbert [University of California, Davis; Pankin, A. [Lehigh University, Bethlehem, PA; Samtaney, Ravi [Princeton Plasma Physics Laboratory (PPPL); Shoshani, A. [Lawrence Berkeley National Laboratory (LBNL); Snyder, P. [General Atomics, San Diego; Strauss, H. [New York University; Sugiyama, L. [Massachusetts Institute of Technology (MIT); CPES Team, the [SciDAC Prototype FSP Center for Plasma Edge Simulation

2007-01-01T23:59:59.000Z

94

Kinetic Modeling of Microbiological Processes  

SciTech Connect (OSTI)

Kinetic description of microbiological processes is vital for the design and control of microbe-based biotechnologies such as waste water treatment, petroleum oil recovery, and contaminant attenuation and remediation. Various models have been proposed to describe microbiological processes. This editorial article discusses the advantages and limiation of these modeling approaches in cluding tranditional, Monod-type models and derivatives, and recently developed constraint-based approaches. The article also offers the future direction of modeling researches that best suit for petroleum and environmental biotechnologies.

Liu, Chongxuan; Fang, Yilin

2012-09-17T23:59:59.000Z

95

General techniques for constrained motion planning  

SciTech Connect (OSTI)

This report presents automatic motion planning algorithms for robotic manipulators performing a variety of tasks. Given a task and a robot manipulator equipped with a tool in its hand, the motion planners compute robot motions to complete the task while respecting manipulator kinematic constraints and avoiding collisions with objects in the robot`s work space. To handle the high complexity of the motion planning problem, a sophisticated search strategy called SANDROS is developed and used to solve many variations of the motion planning problem. To facilitate systematic development of motion planning algorithms, robotic tasks are classified into three categories according to the dimension of the manifold the robot tool has to travel: visit-point (0 dimensional), trace-curve (1 dimensional) and cover-surface (2 dimensional) tasks. The motion planner for a particular dimension is used as a sub-module by the motion planner for the next-higher dimension. This hierarchy of motion planners has led to a set of compact and systematic algorithms that can plan robot motions for many types of robotic operations. In addition, an algorithm is developed that determines the optimal robot-base configuration for minimum cycle time. The SANDROS search paradigm is complete in that it finds a solution path if one exists, up to a user specified resolution. Although its worst-case time complexity is exponential in the degrees of freedom of the manipulator, its average performance is commensurate with the complexity of the solution path. Since solution paths for most of motion planning problems consist of a few monotone segments, the motion planners based on SANDROS search strategy show approximately two-orders of magnitude improvements over existing complete algorithms.

Hwang, Yong K.; Watterberg, P.A.; Chen, Pang, C.; Lewis, C.L.

1997-02-01T23:59:59.000Z

96

Implementation of motion capture support in smartphones.  

E-Print Network [OSTI]

??This thesis investigates the feasibility of developing cross-platform smart phone applications that utilize the Qualisys motion capture system. An Application Programming Interface that implements an (more)

Martinsson, Johannes

2010-01-01T23:59:59.000Z

97

The New Mexico State University motion room  

Science Journals Connector (OSTI)

This article describes the construction and operation of a totally enclosed motion room capable of carrying four students. The room is used for studying motion in a rotating frame. The rotation rate can be varied from 0 to above 20 rpm. Unique features of this motion room are the 60?in. searchlight frame used for the mount and electrical connections and the two cattle watering troughs used for the motion room proper. The room built a number of years ago has not previously been described in the literature.

Harold A. Daw

1990-01-01T23:59:59.000Z

98

Experimental wave effect on vertical relative motion.  

E-Print Network [OSTI]

??Ship motions are influenced by the sea state. Conventionally the responses are calculated in the frequency domain. This method, however, is valid only for narrow (more)

Padmanabhan, Rajith

2007-01-01T23:59:59.000Z

99

CLEERS Coordination & Development of Catalyst Process Kinetic...  

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

Development of Catalyst Process Kinetic Data - Pres. 1: Coordination of CLEERS Project; Pres. 2: ORNL Research on LNT Sulfation & Desulfation CLEERS Coordination & Development of...

100

CLEERS Coordination & Development of Catalyst Process Kinetic...  

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

& coordinate DOE research efforts (CLEERS Coordination) * Develop detailed technical data required to simulate energy efficient emission controls (LNT & SCR Kinetics, Sulfur &...

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


101

The Fractional Kinetic Equation and Thermonuclear Functions  

E-Print Network [OSTI]

The paper discusses the solution of a simple kinetic equation of the type used for the computation of the change of the chemical composition in stars like the Sun. Starting from the standard form of the kinetic equation it is generalized to a fractional kinetic equation and its solutions in terms of H-functions are obtained. The role of thermonuclear functions, which are also represented in terms of G- and H-functions, in such a fractional kinetic equation is emphasized. Results contained in this paper are related to recent investigations of possible astrophysical solutions of the solar neutrino problem.

H. J. Haubold; A. M. Mathai

2000-01-16T23:59:59.000Z

102

Kinetics of actinide complexation reactions  

SciTech Connect (OSTI)

Though the literature records extensive compilations of the thermodynamics of actinide complexation reactions, the kinetics of complex formation and dissociation reactions of actinide ions in aqueous solutions have not been extensively investigated. In light of the central role played by such reactions in actinide process and environmental chemistry, this situation is somewhat surprising. The authors report herein a summary of what is known about actinide complexation kinetics. The systems include actinide ions in the four principal oxidation states (III, IV, V, and VI) and complex formation and dissociation rates with both simple and complex ligands. Most of the work reported was conducted in acidic media, but a few address reactions in neutral and alkaline solutions. Complex formation reactions tend in general to be rapid, accessible only to rapid-scan and equilibrium perturbation techniques. Complex dissociation reactions exhibit a wider range of rates and are generally more accessible using standard analytical methods. Literature results are described and correlated with the known properties of the individual ions.

Nash, K.L.; Sullivan, J.C.

1997-09-01T23:59:59.000Z

103

Combustion kinetics and reaction pathways  

SciTech Connect (OSTI)

This project is focused on the fundamental chemistry of combustion. The overall objectives are to determine rate constants for elementary reactions and to elucidate the pathways of multichannel reactions. A multitechnique approach that features three independent experiments provides unique capabilities in performing reliable kinetic measurements over an exceptionally wide range in temperature, 300 to 2500 K. Recent kinetic work has focused on experimental studies and theoretical calculations of the methane dissociation system (CH{sub 4} + Ar {yields} CH{sub 3} + H + Ar and H + CH{sub 4} {yields} CH{sub 3} + H{sub 2}). Additionally, a discharge flow-photoionization mass spectrometer (DF-PIMS) experiment is used to determine branching fractions for multichannel reactions and to measure ionization thresholds of free radicals. Thus, these photoionization experiments generate data that are relevant to both reaction pathways studies (reaction dynamics) and fundamental thermochemical research. Two distinct advantages of performing PIMS with high intensity, tunable vacuum ultraviolet light at the National Synchrotron Light Source are high detection sensitivity and exceptional selectivity in monitoring radical species.

Klemm, R.B.; Sutherland, J.W. [Brookhaven National Laboratory, Upton, NY (United States)

1993-12-01T23:59:59.000Z

104

The Excitation Energy Dependence of the Total Kinetic Energy Release in 235U(n,f)  

E-Print Network [OSTI]

The total kinetic energy release in the neutron induced fission of $^{235}$U was measured (using white spectrum neutrons from LANSCE) for neutron energies from E$_{n}$ = 3.2 to 50 MeV. In this energy range the average post-neutron total kinetic energy release drops from 167.4 $\\pm$ 0.7 to 162.1 $\\pm$ 0.8 MeV, exhibiting a local dip near the second chance fission threshold. The values and the slope of the TKE vs. E$_{n}$ agree with previous measurements but do disagree (in magnitude) with systematics. The variances of the TKE distributions are larger than expected and apart from structure near the second chance fission threshold, are invariant for the neutron energy range from 11 to 50 MeV. We also report the dependence of the total excitation energy in fission, TXE, on neutron energy.

R. Yanez; L. Yao; J. King; W. Loveland; F. Tovesson; N. Fotiades

2014-03-18T23:59:59.000Z

105

Multiple temperature kinetic model and gas-kinetic method for hypersonic non-equilibrium flow computations  

E-Print Network [OSTI]

Multiple temperature kinetic model and gas-kinetic method for hypersonic non-equilibrium flow. For the non-equilibrium flow computations, i.e., the nozzle flow and hypersonic rarefied flow over flat plate-kinetic method; Hypersonic and rarefied flows 1. Introduction The development of aerospace technology has

Xu, Kun

106

Testing the kinetic energy functional: Kinetic energy density as a density functional  

E-Print Network [OSTI]

is to the exchange-correlation energy as a functional of the density. A large part of the total energy, the kinetic contexts. For finite systems these forms integrate to the same global ki- netic energy, but they differTesting the kinetic energy functional: Kinetic energy density as a density functional Eunji Sim

Burke, Kieron

107

Violent Wave Motion due to Impact Violent Wave Motion due to Impact  

E-Print Network [OSTI]

Violent Wave Motion due to Impact Violent Wave Motion due to Impact Mark J. Cooker School of Mathematics, University of East Anglia, Norwich, England. m.cooker@uea.ac.uk Theory of Water Waves, Cambridge Motion due to Impact 2. Pressure-Impulse Theory 214 M.J. COOKER AND D.H. PEREGRINE Y; O: .-- I mpact zone

108

NAAP Motions of the Sun 1/7 Motions of the Sun Student Guide  

E-Print Network [OSTI]

Name: NAAP ­ Motions of the Sun 1/7 Motions of the Sun ­ Student Guide Seasonal Motion Work through in these pages are used in the Paths of the Sun Simulator. Question 1: For each of the following statements questions. (A) On May 25th , the sun is in the constellation of ___________________. (B) What would

Farritor, Shane

109

Learning Human Motion Models Bulent Tastan  

E-Print Network [OSTI]

Learning Human Motion Models Bulent Tastan Department of EECS University of Central Florida Orlando In this summary, I provide an overview of my disserta- tion work on learning human motion models from trajectory) pursuing opponents. Human Tracking One of the most powerful constraints governing many ac- tivity

Sukthankar, Gita Reese

110

Recent Ground Motion Studies at SLAC  

SciTech Connect (OSTI)

Studies of slow ground motion have recently been performed at SLAC using the linac laser alignment system over a period of one month. Two significant effects responsible for the observed motion have been identified, namely tidal forces and variation of external atmospheric pressure. The latter is of particular interest as it may result in misalignments with rather short wavelength.

Seryi, Andrei

2000-06-28T23:59:59.000Z

111

Free-Form Motion Processing Scott Kircher  

E-Print Network [OSTI]

Free-Form Motion Processing Scott Kircher University of Illinois at Urbana-Champaign and Michael Descriptors: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism--Animation General Terms are typical of several common motion sources, including physical simulations of non-rigid objects (e.g., cloth

Garland, Michael

112

Proper Motions of 25,000 Stars  

Science Journals Connector (OSTI)

... motion, the apex of the solar motion, and the vertex and axes of the Schwarzschild ellipsoid, have been found for stars 9-0-14-0 m. and those fainter ... and those fainter than 14-1 m. It is pointed out that the vertex of Schwarzschild's ellipsoid is the only one of these quantities which can be satisfactorily derived from ...

F. W. D.

1935-03-09T23:59:59.000Z

113

Compressive Computation in Analog VLSI Motion Sensors  

E-Print Network [OSTI]

Compressive Computation in Analog VLSI Motion Sensors Rainer A. Deutschmann1 and Oliver G. Wenisch2 analog VLSI mo- tion sensors developed in the past. We show how their pixel-parallel architecture can is best suited to perform the algorithm even at high noise levels. 1 Analog VLSI Motion Sensors Inthe past

Deutschmann, Rainer

114

Electrophysiology and brain imaging of biological motion  

Science Journals Connector (OSTI)

...networks that preferentially process certain attri- butes of these...ventral to the STS, on the MTG. In another fMRI experiment...articulated human motion and the MTG to non-articulated motion...high-order processing mechanisms process selectively the higher-order...

2003-01-01T23:59:59.000Z

115

Kinetic roughening on curved interfaces  

E-Print Network [OSTI]

Stochastic growth phenomena on curved interfaces have not been explored in so much detail as their planar counterparts. The independence of the interface macroscopic shape on kinetic roughening has been occasionally assumed, but however, this fact can not be considered as universal. Stochastic partial differential equations on curved interfaces present dynamical and morphological properties that are completely different from their planar equivalents. Herein we will concentrate on equations which planar counterparts are linear. The fundamental differences are the loss of correlation of the interface through time for models showing sub-ballistic propagation of the correlations and the irrelevance of the noise in two and higher dimensional settings. We analyze some of these processes in detail, exploring why these consequences arise, and show that they tend to appear irrespective of the particular metric, provided that it is not Euclidean. Models showing a super-ballistic propagation of correlations present a fl...

Escudero, Carlos

2008-01-01T23:59:59.000Z

116

Seismic switch for strong motion measurement  

DOE Patents [OSTI]

A seismic switching device that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period.

Harben, Philip E. (Oakley, CA); Rodgers, Peter W. (Santa Barbara, CA); Ewert, Daniel W. (Patterson, CA)

1995-01-01T23:59:59.000Z

117

Seismic switch for strong motion measurement  

DOE Patents [OSTI]

A seismic switching device is described that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period. 11 figs.

Harben, P.E.; Rodgers, P.W.; Ewert, D.W.

1995-05-30T23:59:59.000Z

118

Decohesion Kinetics in Polymer Organic Solar Cells  

Science Journals Connector (OSTI)

Decohesion Kinetics in Polymer Organic Solar Cells ... We investigate the role of molecular weight (MW) of the photoactive polymer poly(3-hexylthiophene) (P3HT) on the temperature-dependent decohesion kinetics of bulk heterojunction (BHJ) organic solar cells (OSCs). ... fullerenes; solar cells; thin films; fracture; polymer ...

Christopher Bruner; Fernando Novoa; Stephanie Dupont; Reinhold Dauskardt

2014-11-04T23:59:59.000Z

119

Kinetics of Non-Thermal Atmospheric Pressure  

E-Print Network [OSTI]

Kinetics of Non-Thermal Atmospheric Pressure Plasmas Alexander Fridman · Microdischarge Interaction and Structuring in Dielectric Barrier Discharges · Kinetics of Blood Coagulation in Plasma · Surface Wound wire Area of DBD plasma region: ~104cm2 #12;7 Microdischarge Patterning (2D) R22 R23 R24 R26 R27 R28

Kaganovich, Igor

120

Chemical kinetics and oil shale process design  

SciTech Connect (OSTI)

Oil shale processes are reviewed with the goal of showing how chemical kinetics influences the design and operation of different processes for different types of oil shale. Reaction kinetics are presented for organic pyrolysis, carbon combustion, carbonate decomposition, and sulfur and nitrogen reactions.

Burnham, A.K.

1993-07-01T23:59:59.000Z

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


121

ADVANCES IN ENVIRONMENTAL REACTION KINETICS AND THERMODYNAMICS  

E-Print Network [OSTI]

1262 ADVANCES IN ENVIRONMENTAL REACTION KINETICS AND THERMODYNAMICS: LONG-TERM FATE thermodynamic and kinetic data is available with regard to the formation of these mixed metal precipitate phases to six months from the initial addition of aqueous nickel. Additionally, we have determined thermodynamic

Sparks, Donald L.

122

Transverse collective motion in intermediate-energy heavy-ion collisions  

SciTech Connect (OSTI)

Light charged fragments from the reactions {sup 40}Ar+{sup 51}V at 35 MeV/nucleon and {sup 12}C+{sup 12}C at 50 MeV/nucleon have been measured with a 4{pi} array. Transverse collective motion is observed for all fragment types and increases in strength for the heavier fragments. The transverse momentum is qualitatively similar for the different impact parameters selected by the midrapidity charge. The global transverse momentum analysis includes corrections for correlations due to momentum conservation. The results are compared to those at higher energies to investigate whether the same or a new reaction phenomenon produces the collective motion. We outline some implications for the extraction of thermodynamic information from the kinetic energy of emitted fragments.

Ogilvie, C.A.; Cebra, D.A.; Clayton, J.; Danielewicz, P.; Howden, S.; Karn, J.; Nadasen, A.; Vander Molen, A.; Westfall, G.D.; Wilson, W.K.; Winfield, J.S. (National Superconducting Cyclotron Laboratory and Department of Physics Astronomy, Michigan State University, East Lansing, Michigan 48824 (US))

1989-12-01T23:59:59.000Z

123

The Kinetic Theory of Magnetism  

Science Journals Connector (OSTI)

Magnetic Susceptibility of Gases.The results of a previous paper by Honda and Okuba (Phys. Rev., Vol. 13, 1919, p. 6) are considered, certain important errors noted, and some aspects of the assumptions further examined and developed. The susceptibility is not the same whether or not the gyroscopic nutation of the molecules persists, and the apparent check with Langevin's result is shown to be in error. A gas is shown to be diamagnetic or paramagnetic, on this theory, according as the nutation does or does not persist. This result holds, at least without further investigation, only for smooth spherical molecules rather than as stated. A discussion is given of the effect of thermal impacts on gyroscopic motion of this type.

Warren Weaver

1920-11-01T23:59:59.000Z

124

Chemical Kinetic Modeling of Non-Petroleum Based Fuels | Department...  

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

ft010pitz2012o.pdf More Documents & Publications Chemical Kinetic Modeling of Non-Petroleum Based Fuels Chemical Kinetic Modeling of Fuels Chemical Kinetic Research on HCCI &...

125

A Mobile Motion Analysis System Using Intertial Sensors for Analysis of Lower Limb Prosthetics  

SciTech Connect (OSTI)

Soldiers returning from the global war on terror requiring lower leg prosthetics generally have different concerns and requirements than the typical lower leg amputee. These subjects are usually young, wish to remain active and often desire to return to active military duty. As such, they demand higher performance from their prosthetics, but are at risk for chronic injury and joint conditions in their unaffected limb. Motion analysis is a valuable tool in assessing the performance of new and existing prosthetic technologies as well as the methods in fitting these devices to both maximize performance and minimize risk of injury for the individual soldier. We are developing a mobile, low-cost motion analysis system using inertial measurement units (IMUs) and two custom force sensors that detect ground reaction forces and moments on both the unaffected limb and prosthesis. IMUs were tested on a robot programmed to simulate human gait motion. An algorithm which uses a kinematic model of the robot and an extended Kalman filter (EKF) was used to convert the rates and accelerations from the gyro and accelerometer into joint angles. Compared to encoder data from the robot, which was considered the ground truth in this experiment, the inertial measurement system had a RMSE of <1.0 degree. Collecting kinematic and kinetic data without the restrictions and expense of a motion analysis lab could help researchers, designers and prosthetists advance prosthesis technology and customize devices for individuals. Ultimately, these improvements will result in better prosthetic performance for the military population.

Mueller, John Kyle P [ORNL] [ORNL; Ericson, Milton Nance [ORNL] [ORNL; Farquhar, Ethan [ORNL] [ORNL; Lind, Randall F [ORNL] [ORNL; Evans III, Boyd Mccutchen [ORNL] [ORNL

2011-01-01T23:59:59.000Z

126

Pixel-wise Motion Detection in Persistent Aerial Video Surveillance  

SciTech Connect (OSTI)

In ground stabilized WAMI, stable objects with depth appear to have precessive motion due to sensor movement alongside objects undergoing true, independent motion in the scene. Computational objective is to disambiguate independent and structural motion in WAMI efficiently and robustly.

Vesom, G

2012-03-23T23:59:59.000Z

127

Direct Visualization of Initial SEI Morphology and Growth Kinetics...  

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

Initial SEI Morphology and Growth Kinetics During Lithium Deposition by in situ Electrochemical Direct Visualization of Initial SEI Morphology and Growth Kinetics During Lithium...

128

Transport-controlled kinetics of dissolution and precipitation...  

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

Transport-controlled kinetics of dissolution and precipitation in the sediments under alkaline and saline conditions . Transport-controlled kinetics of dissolution and...

129

Studying The Kinetics Of Crystalline Silicon Nanoparticle Lithiation...  

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

Studying The Kinetics Of Crystalline Silicon Nanoparticle Lithiation With In-Situ Transmission Electron Microscopy. Studying The Kinetics Of Crystalline Silicon Nanoparticle...

130

Global Optimization of Chemical Reactors and Kinetic Optimization  

E-Print Network [OSTI]

Model; 3-D; Monolith; Reactor; Optimization Introduction TheAngeles Global Optimization of Chemical Reactors and KineticGlobal Optimization of Chemical Reactors and Kinetic

ALHUSSEINI, ZAYNA ISHAQ

2013-01-01T23:59:59.000Z

131

Structure, Kinetics, and Thermodynamics of the Aqueous Uranyl...  

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

Kinetics, and Thermodynamics of the Aqueous Uranyl(VI) Cation. Structure, Kinetics, and Thermodynamics of the Aqueous Uranyl(VI) Cation. Abstract: Molecular simulation techniques...

132

Microscale Electrode Design Using Coupled Kinetic, Thermal and...  

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

Microscale Electrode Design Using Coupled Kinetic, Thermal and Mechanical Modeling Microscale Electrode Design Using Coupled Kinetic, Thermal and Mechanical Modeling 2010 DOE...

133

Microscale Electrode Design Using Coupled Kinetic, Thermal and...  

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

Microscale Electrode Design Using Coupled Kinetic, Thermal and Mechanical Modeling Microscale Electrode Design Using Coupled Kinetic, Thermal and Mechanical Modeling 2009 DOE...

134

Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro...  

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

Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro-machined Electrodes Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro-machined Electrodes 2010 DOE...

135

Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps...  

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

Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps Development of Chemical Kinetic Models for Lean NOx Traps Modeling the Regeneration Chemistry of Lean NOx Traps...

136

Experimentally determined dissolution kinetics of Na-rich borosilicate...  

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

Experimentally determined dissolution kinetics of Na-rich borosilicate glass at far from equilibrium conditions: Implications Experimentally determined dissolution kinetics of...

137

Modeling of Reactor Kinetics and Dynamics  

SciTech Connect (OSTI)

In order to model a full fuel cycle in a nuclear reactor, it is necessary to simulate the short time-scale kinetic behavior of the reactor as well as the long time-scale dynamics that occur with fuel burnup. The former is modeled using the point kinetics equations, while the latter is modeled by coupling fuel burnup equations with the kinetics equations. When the equations are solved simultaneously with a nonlinear equation solver, the end result is a code with the unique capability of modeling transients at any time during a fuel cycle.

Matthew Johnson; Scott Lucas; Pavel Tsvetkov

2010-09-01T23:59:59.000Z

138

Towards Cross-Modal Comparison of Human Motion Data  

Science Journals Connector (OSTI)

Analyzing human motion data has become an important strand of ... from different sensor modalities and investigate their discriminative power in the context of motion identification and...

Thomas Helten; Meinard Mller; Jochen Tautges; Andreas Weber

2011-01-01T23:59:59.000Z

139

Inference of Human Motion using Low-cost Sensors  

E-Print Network [OSTI]

human motions with feasible cost (manufacture cost, power,power source. For these reasons, in this chapter we formulated a system, which can track human motion

Chien, Chieh

2013-01-01T23:59:59.000Z

140

Notes 03. Kinematics of motion in cylindrical journal bearings  

E-Print Network [OSTI]

Reynolds equation for cylindrical journal bearings. Kinematics of motion and film thickness. Distinction between fixed and rotating coordinates. The pure squeeze velocity vector. Examples of journal motion....

San Andres, Luis

2009-01-01T23:59:59.000Z

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


141

Hydrogen Species Motion in Piezoelectrics: A Quasi-Elastic Neutron...  

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

Species Motion in Piezoelectrics: A Quasi-Elastic Neutron Scattering Study. Hydrogen Species Motion in Piezoelectrics: A Quasi-Elastic Neutron Scattering Study. Abstract: Hydrogen...

142

Test particle motion in modified gravity theories  

E-Print Network [OSTI]

We derive the equations of motion of an electrically neutral test particle for modified gravity theories in which the covariant divergence of the ordinary matter energy-momentum tensor dose not vanish (i.e. $\

Mahmood Roshan

2013-02-05T23:59:59.000Z

143

The motion of magnetic field lines  

Science Journals Connector (OSTI)

The definition and applications of the motion of magnetic lines of force are reviewed and illustrated. First ... aid to describing the evolution of a known magnetic field. It is next shown that a known velocity field

David P. Stern

1966-11-01T23:59:59.000Z

144

Generalized Sampling-Based Feedback Motion Planners  

E-Print Network [OSTI]

states. In the deterministic robotics motion planning community, sampling based algorithms like probabilistic roadmaps (PRM) and rapidly exploring random trees (RRTs) have been successful in solving very high dimensional deterministic problem. However...

Kumar, Sandip

2012-02-14T23:59:59.000Z

145

Progressive transitions using body part motion graphs  

Science Journals Connector (OSTI)

In this work we describe a preliminary method for progressive transitions in human locomotions. To achieve this, motion graphs have been used to synthesize body part transitions and every part has been synchronized with the other parts using time scaling. ...

Adso Fernndez-Baena; David Miralles

2011-12-01T23:59:59.000Z

146

Slow motion responses of compliant offshore structures  

E-Print Network [OSTI]

An efficient method is developed to predict slow motion responses of slender compliant offshore structures in the unidirectional irregular waves and currents. The environmental loads are computed using the modified Morison equation based on slender...

Cao, Peimin

2012-06-07T23:59:59.000Z

147

Gas content effect on bubble motion  

Science Journals Connector (OSTI)

The gas content is one of the important bubble parameters. In this article, the gas content effect on the bubble motion is investigated by numerical simulation based on the...

Yang, Bo; Chen, Xiao; Xu, Rongqing; Lu, Jian; Ni, Xiaowu

2005-01-01T23:59:59.000Z

148

The Design of Shape from Motion Constraints  

E-Print Network [OSTI]

This report presents a set of representations methodologies and tools for the purpose of visualizing, analyzing and designing functional shapes in terms of constraints on motion. The core of the research is an interactive ...

Caine, Michael E.

1993-09-01T23:59:59.000Z

149

Simulating plant motion with levels of detail  

E-Print Network [OSTI]

SIMULATING PLANT MOTION WITH LEVELS OF DETAIL A Senior Honors Thesis by REBECCA LYNN FLANNERY Submitted to the Office of Honors Programs k. Academic Scholarships Texas AkM University in partial fulfillment of the requirements... of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS April 2003 Group: Engineering & Physics I SIMULATING PLANT MOTION WITH LEVELS OF DETAIL A Senior Honors Thesis by REBECCA LYNN FLANNERY Submitted to the Office of Honors Programs & Academic Scholarships...

Flannery, Rebecca Lynn

2013-02-22T23:59:59.000Z

150

On the Kinematics of Undulator Girder Motion  

SciTech Connect (OSTI)

The theory of rigid body kinematics is used to derive equations that govern the control and measurement of the position and orientation of undulator girders. The equations form the basis of the girder matlab software on the LCLS control system. The equations are linear for small motion and easily inverted as desired. For reference, some relevant girder geometrical data is also given. Equations 6-8 relate the linear potentiometer readings to the motion of the girder. Equations 9-11 relate the cam shaft angles to the motion of the girder. Both sets are easily inverted to either obtain the girder motion from the angles or readings, or, to find the angles and readings that would give a desired motion. The motion of any point on the girder can be calculated by applying either sets of equations to the two cam-planes and extrapolating in the z coordinate using equation 19. The formulation of the equations is quite general and easily coded via matrix and vector methods. They form the basis of the girder matlab software on the LCLS control system.

Welch, J; /SLAC; ,

2011-08-18T23:59:59.000Z

151

Higher order equations of motion and gravity  

Science Journals Connector (OSTI)

Standard fundamental equations of motion for point particles are of second order in the time derivative. Here we are exploring the consequences of fundamental equations of motion with an additional small even higher order term to the standard formulation. This is related to two issues: (i)higher order equations of motion will have influence on the definition of the structure of possible interactions and in particular of the gravitational interaction, and (ii)such equations of motion provide a framework to test the validity of Newtons second law which is the basis for the definition of forces but which assumes from the very beginning that the fundamental equations of motion are of second order. We will show that starting with our generalized equations of motions it is possible to introduce the space-time metric describing the gravitational interaction by means of a standard gauge principle. Another main result within our model of even higher order derivatives is that for slowly varying and smooth fields the higher order derivatives either lead to runaway solutions or induces a zitterbewegung. We confront this higher order scheme with experimental data.

Claus Lmmerzahl and Patricia Rademaker

2012-12-06T23:59:59.000Z

152

Help:Motion Chart | Open Energy Information  

Open Energy Info (EERE)

Motion Chart Motion Chart Jump to: navigation, search This page is designed to help you create your very own Google Motion Chart, or Gapminder-like visualization. You'll work in Google Docs to develop the motion chart and with the OpenEI team to publish it on OpenEI. About The motion chart is a cool way to display data that changes over time. The dynamic chart allows you to quickly explore a lot of data with a fairly easy-to-use interface. The example below displays page visit and usage statistics for openei.org. Google motion chart (Gapminder): Getting Started Here is what you'll need from the start: View of a google doc with OpenEI analytics data A Google account Data (time series data with at least 2 fields) An OpenEI user account Step 1 - The Data The data to the right is a view of some OpenEI use statistics from the past

153

Kinetic equilibrium reconstruction on EAST tokamak  

Science Journals Connector (OSTI)

Plasma equilibrium is an important basis for tokamak plasma research. The equilibrium reconstructed from experimental diagnostics is a key element for experiments analysis and for theory study. The kinetic equilibrium has the profiles information (current or safety factor profile, kinetic pressure profile), which are key issues for some studies of physics. With the constraints of magnetic measurements, pressure profile and edge current profile, we achieved the first reconstructed kinetic equilibrium on EAST tokamak. The pressure and edge current profiles are based on the diagnostics and theoretical bootstrap current model. The kinetic equilibrium has the pedestal structure for H-mode plasma, which the magnetic reconstruction missed. This improved equilibrium is an important basis for some experimental analysis and theory studies on EAST.

G Q Li; Q L Ren; J P Qian; L L Lao; S Y Ding; Y J Chen; Z X Liu; B Lu; Q Zang

2013-01-01T23:59:59.000Z

154

Kinetics of ethanol dehydrogenation into ethyl acetate  

Science Journals Connector (OSTI)

The kinetics of gas-phase dehydrogenation of ethanol into ethyl acetate over a copper-zinc- ... means to design a reactor for dehydrogenation of ethanol into ethyl acetate in different regimes.

V. A. Menshchikov; L. Kh. Goldshtein; I. P. Semenov

2014-01-01T23:59:59.000Z

155

Mechanistic studies using kinetic isotope effects  

E-Print Network [OSTI]

MECHANISTIC STUDIES USING KINETIC ISOTOPE EFFECTS A Thesis by BRIAN E. SCHULMFIER Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requtrements for the degree of MASTER OF SCIENCE December... 1999 Major Subject: Chemistry MECHANISTIC STUDIES USING KINETIC ISOTOPE EFFECTS A Thesis by BRIAN E. SCHULMEIER Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved...

Schulmeier, Brian E.

2012-06-07T23:59:59.000Z

156

Kinetic decoupling of WIMPs: analytic expressions  

E-Print Network [OSTI]

We present a general expression for the values of the average kinetic energy and of the temperature of kinetic decoupling of a WIMP, valid for any cosmological model. We show an example of the usage of our solution when the Hubble rate has a power-law dependence on temperature, and we show results for the specific cases of kination cosmology and low- temperature reheating cosmology.

Visinelli, Luca

2015-01-01T23:59:59.000Z

157

Quintom scenario with mixed kinetic terms  

SciTech Connect (OSTI)

We examine an extension of the quintom scenario of dark energy, in which a canonical scalar field and a phantom field are coupled through a kinetic interaction. We perform a phase-space analysis and show that the kinetic coupling gives rise to novel cosmological behavior. In particular, we obtain both quintessence-like and phantomlike late-time solutions, as well as solutions that cross the phantom divide during the evolution of the Universe.

Saridakis, Emmanuel N. [College of Mathematics and Physics, Chongqing University of Posts and Telecommunications, Chongqing, 400065 (China); Weller, Joel M. [Department of Applied Mathematics, University of Sheffield, Hounsfield Road, Sheffield S3 7RH (United Kingdom)

2010-06-15T23:59:59.000Z

158

Viability of Using Markerless Motion Capture; Lnsamheten av att anvnda Markerless Motion Capture.  

E-Print Network [OSTI]

?? This thesis presents a study on how to create a production pipeline using a markerless motion capture system for the creation of animations in (more)

Mattsson, Viktor

2014-01-01T23:59:59.000Z

159

Articulated Body Motion Capture by Annealed Particle Filtering Jonathan Deutscher  

E-Print Network [OSTI]

with today's powerful off-the-shelf PC's, cost-effective and real- time markerless human motion capture has articulated body motion efficiently. 1. Introduction Marker-based human motion capture has been used commer be used on footage taken especially for that purpose. A markerless system of human motion cap- ture could

Oxford, University of

160

22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 1 Kinetic theory of Geodesic Acoustic  

E-Print Network [OSTI]

22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 1 Kinetic theory of Geodesic Acoustic Zonca, Liu Chen and Zhiyong Qiu #12;22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 2 Chen and Zhiyong Qiu #12;22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 3 2 Linear

Zonca, Fulvio

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


161

Rotational motion of molecules and neutron scattering  

Science Journals Connector (OSTI)

The differential neutron scattering cross section for scattering from a rigid rotating molecule in a general isotropic medium (condensed or gas state of matter) is presented. It is based on a model which assumes the complete rotational motion to consist of a damped form of free rotations and of damped librations respectively. The two phases of rotation are assumed to be coupled to microscopic density fluctuations in the medium in such a way that densities larger than the average allow only damped librations whereas densities lower than the average allow only damped rotations. The cross section is derived with the aid of a step function formalism first used by Singwi and Sjlander. Further use is made of Sears' earlier work on rotational scattering cross sections. The resulting cross section describes the molecular motions in a range of conditions from free rotations to undamped libration including all possible intermediate damped motions. The model differs from those created earlier insofar as the rotational diffusion is not necessarily described as a motion consisting of free rotations over smaller or larger angles interrupted by brief collisions. The collisions may in the present model be replaced by shorter or longer periods of libration. Numerical calculations of the Fourier transform S 1(?) of the first rotational relaxation function F 1(t) is performed using explicit models for the librational and rotational relaxation functions and for such a choice of numerical constants that the results should describe various hypothetical rotational motions of the methane molecule.

K. E. Larsson

1973-01-01T23:59:59.000Z

162

7-Gate Kinetic AMPA Model Kinetics to match EPSCs from calyx of Held  

E-Print Network [OSTI]

7-Gate Kinetic AMPA Model · Kinetics to match EPSCs from calyx of Held · Multiple closed, open and EPSC amplitude Bruce Graham Department of Computing Science and Mathematics, University of Stirling, U, including the calyx of Held in the mammalian auditory system. Such depression may be mediated

Graham, Bruce

163

Chemical Kinetic Modeling of Advanced Transportation Fuels  

SciTech Connect (OSTI)

Development of detailed chemical kinetic models for advanced petroleum-based and nonpetroleum based fuels is a difficult challenge because of the hundreds to thousands of different components in these fuels and because some of these fuels contain components that have not been considered in the past. It is important to develop detailed chemical kinetic models for these fuels since the models can be put into engine simulation codes used for optimizing engine design for maximum efficiency and minimal pollutant emissions. For example, these chemistry-enabled engine codes can be used to optimize combustion chamber shape and fuel injection timing. They also allow insight into how the composition of advanced petroleum-based and non-petroleum based fuels affect engine performance characteristics. Additionally, chemical kinetic models can be used separately to interpret important in-cylinder experimental data and gain insight into advanced engine combustion processes such as HCCI and lean burn engines. The objectives are: (1) Develop detailed chemical kinetic reaction models for components of advanced petroleum-based and non-petroleum based fuels. These fuels models include components from vegetable-oil-derived biodiesel, oil-sand derived fuel, alcohol fuels and other advanced bio-based and alternative fuels. (2) Develop detailed chemical kinetic reaction models for mixtures of non-petroleum and petroleum-based components to represent real fuels and lead to efficient reduced combustion models needed for engine modeling codes. (3) Characterize the role of fuel composition on efficiency and pollutant emissions from practical automotive engines.

PItz, W J; Westbrook, C K; Herbinet, O

2009-01-20T23:59:59.000Z

164

Ocean Motion International LLC | Open Energy Information  

Open Energy Info (EERE)

Ocean Motion International LLC Ocean Motion International LLC Jump to: navigation, search Name Ocean Motion International LLC Place Saulsbury, Tennessee Zip 38067 Sector Ocean Product Marine energy technology firm developing ocean/ wave powered generators. Coordinates 35.052242°, -89.083299° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.052242,"lon":-89.083299,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

165

Universal equations and constants of turbulent motion  

E-Print Network [OSTI]

This paper presents a parameter-free theory of shear-generated turbulence at asymptotically high Reynolds numbers in incompressible fluids. It is based on a two-fluids concept. Both components are materially identical and inviscid. The first component is an ensemble of quasi-rigid dipole-vortex tubes as quasi-particles in chaotic motion. The second is a superfluid performing evasive motions between the tubes. The local dipole motions follow Helmholtz' law. The vortex radii scale with the energy-containing length scale. Collisions between quasi-particles lead either to annihilation (likewise rotation, turbulent dissipation) or to scattering (counterrotation, turbulent diffusion). There are analogies with birth and death processes of population dynamics and their master equations. For free homogeneous decay the theory predicts the TKE to follow 1/t. With an adiabatic condition at the wall it predicts the logarithmic law with von Karman's constant as 1/\\sqrt{2 pi} = 0.399. Likewise rotating couples form dissipat...

Baumert, Helmut Z

2012-01-01T23:59:59.000Z

166

Kinetic model for quartz and spinel dissolution during melting of high-level-waste glass batch  

SciTech Connect (OSTI)

The dissolution of quartz particles and the growth and dissolution of crystalline phases during the conversion of batch to glass potentially affects both the glass melting process and product quality. Crystals of spinel exiting the cold cap to molten glass below can be troublesome during the vitrification of iron-containing high-level wastes. To estimate the distribution of quartz and spinel fractions within the cold cap, we used kinetic models that relate fractions of these phases to temperature and heating rate. Fitting the model equations to data showed that the heating rate, apart from affecting quartz and spinel behavior directly, also affects them indirectly via concurrent processes, such as the formation and motion of bubbles. Because of these indirect effects, it was necessary to allow one kinetic parameter (the pre-exponential factor) to vary with the heating rate. The resulting kinetic equations are sufficiently simple for the detailed modeling of batch-to-glass conversion as it occurs in glass melters. The estimated fractions and sizes of quartz and spinel particles as they leave the cold cap, determined in this study, will provide the source terms needed for modeling the behavior of these solid particles within the flow of molten glass in the melter.

Pokorny, Richard; Rice, Jarrett A.; Crum, Jarrod V.; Schweiger, Michael J.; Hrma, Pavel R.

2013-07-24T23:59:59.000Z

167

MHD versus kinetic effects in the solar coronal heating: a two stage mechanism  

E-Print Network [OSTI]

Using Particle-In-Cell simulations i.e. in the kinetic plasma description the discovery of a new mechanism of parallel electric field generation was recently reported. Here we show that the electric field generation parallel to the uniform unperturbed magnetic field can be obtained in a much simpler framework using the ideal magnetohydrodynamics (MHD) description. In ideal MHD the electric field parallel to the uniform unperturbed magnetic field appears due to fast magnetosonic waves which are generated by the interaction of weakly non-linear Alfv\\'en waves with the transverse density inhomogeneity. In the context of the coronal heating problem a new {\\it two stage mechanism} of plasma heating is presented by putting emphasis, first, on the generation of parallel electric fields within an {\\it ideal MHD} description directly, rather than focusing on the enhanced dissipation mechanisms of the Alfv\\'en waves and, second, dissipation of these parallel electric fields via {\\it kinetic} effects. It is shown that for a single Alfv\\'en wave harmonic with frequency $\

David Tsiklauri

2006-06-27T23:59:59.000Z

168

Philips Color Kinetics | Open Energy Information  

Open Energy Info (EERE)

Color Kinetics Color Kinetics Jump to: navigation, search Name Philips Color Kinetics Address 3 Burlington Woods Drive, 4th Floor Place Burlington, Massachusetts Zip 01803 Sector Efficiency Product LED lighting systems Website http://www.colorkinetics.com/ Coordinates 42.5005723°, -71.2042619° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.5005723,"lon":-71.2042619,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

169

Kinetic studies of elementary chemical reactions  

SciTech Connect (OSTI)

This program concerning kinetic studies of elementary chemical reactions is presently focussed on understanding reactions of NH{sub x} species. To reach this goal, the author is pursuing experimental studies of reaction rate coefficients and product branching fractions as well as using electronic structure calculations to calculate transition state properties and reaction rate calculations to relate these properties to predicted kinetic behavior. The synergy existing between the experimental and theoretical studies allow one to gain a deeper insight into more complex elementary reactions.

Durant, J.L. Jr. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

170

Motion rings for interactive gait synthesis  

Science Journals Connector (OSTI)

This paper presents a practical system for synthesizing gait animation in game environments. As well as improving the reality of animation, we should improve the efficiency and the maneuverability of the character, both of which are essential for interactive ... Keywords: gait synthesis, motion interpolation, responsive animation

Tomohiko Mukai

2011-02-01T23:59:59.000Z

171

Herbert: a motion-controlled mobile game  

Science Journals Connector (OSTI)

Smartphone games lack the hardware interface afforded by other gaming media like controllers for consoles, keyboard and mouse for PCs, joysticks and buttons on arcade cabinets, etc. As such, many popular games focus on puzzle mechanics using the touch ... Keywords: accelerometer, chasing, intuitive controls, kiting, mobile devices, motion controls, shake, skill game

Alexander M. Duff, Jun Ma, Shannon Sepelak, Alberto Uriarte, Wenjie Wu, Jichen Zhu

2014-10-01T23:59:59.000Z

172

Simulation levels of detail for plant motion  

E-Print Network [OSTI]

and determine the allowable error in the simulation of branch motion. This allows us to choose the appropriate simulation level of detail and we provide smooth transitions from level to level. Our level of detail approach affects only the simulation parameters...

Beaudoin, Jacob Michael

2013-02-22T23:59:59.000Z

173

Multipurpose active/passive motion compensation system  

SciTech Connect (OSTI)

A microprocessor-controlled active/passive motion compensation system has been developed for deploying a variety of geotechnical in-situ testing devices with mobile drilling rigs from low-cost service vessels. The light-weight rotary heave compensator incorporates a hydraulic motor as the compensator actuator and a servo-controlled closed loop pump to reduce the air storage and power requirements. Unique features of the system are the use of inertial sensors to measure three components of boat motion, the ability to run the system in active/passive or passive modes, and the ability to automatically lower the drillstring at a constant velocity while maintaining motion compensation. Quantitative measurements made during sea trials offshore California yielded motion compensation accuracy approaching 98 percent which is much better than the compensation achieved with passive systems. Results are presented from offshore in-situ testing with a cone penetrometer, a vane shear device, and a suspension PS logger. The system can also be used for other offshore applications.

Sullivan, R.A.; Clements, R.E.; Davenport, M.R.

1984-05-01T23:59:59.000Z

174

Chemistry in Motion: Tiny Synthetic Motors  

E-Print Network [OSTI]

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

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

2014-11-03T23:59:59.000Z

175

Motion from Transient Oscillations Jeffrey E. Boyd  

E-Print Network [OSTI]

Motion from Transient Oscillations Jeffrey E. Boyd Department of Computer Science University of Calgary Calgary AB T2N 1N4 boyd@cpsc.ucalgary.ca James J. Little Department of Computer Science University optical flow algorithms and vPLLs highlighting how the algorithms meet these two #12; Boyd and Little

Boyd, Jeffrey E.

176

Precursors to Space Flight! Orbital Motion!  

E-Print Network [OSTI]

" Industrial Revolution" #12;Industrial Revolution and Government Science" Long-Distance Communication" #12://www.princeton.edu/~stengel/FRS.html! ·! Prophets with Some Honor" ·! The Human Seed and Social Soil: Rocketry and Revolution" ·! Orbital Motion minitial mfinal The Human Seed and Social Soil: Rocketry and Revolution! #12;Early 20th Century Rocket

Stengel, Robert F.

177

TURBULENCE IN THE INTERGALACTIC MEDIUM: SOLENOIDAL AND DILATATIONAL MOTIONS AND THE IMPACT OF NUMERICAL VISCOSITY  

SciTech Connect (OSTI)

We use a suite of cosmological hydrodynamical simulations, run by two fixed grid codes, to investigate the properties of solenoidal and dilatational motions of the intergalactic medium (IGM) and the impact of numerical viscosity on turbulence in an ?CDM universe. The codes differ only in the spatial difference discretization. We find that (1) The vortical motion grows rapidly since z = 2 and reaches ?10 km s{sup 1}-90 km s{sup 1} at z = 0. Meanwhile, the small-scale compressive ratio r{sub CS} drops from 0.84 to 0.47, indicating comparable vortical and compressive motions at z = 0. (2) Power spectra of the solenoidal velocity possess two regimes, ?k {sup 0.89} and ?k {sup 2.02}, while the total and dilatational velocity follow the scaling k {sup 1.88} and k {sup 2.20}, respectively, in the turbulent range. The IGM turbulence may contain two distinct phases, the supersonic and post-supersonic phases. (3) The non-thermal pressure support, measured by the vortical kinetic energy, is comparable with the thermal pressure for ?{sub b} ? 10-100, or T < 10{sup 5.5} K at z = 0.0. The deviation of the baryon fraction from the cosmic mean shows a preliminary positive correlation with the turbulence pressure support. (4) A relatively higher numerical viscosity would dissipate both the compressive and vortical motions of the IGM into thermal energy more effectively, resulting in less developed vorticity, remarkably shortened inertial range, and leading to a non-negligible uncertainty in the thermal history of gas accretion. Shocks in regions outside of clusters are significantly suppressed by numerical viscosity since z = 2, which may directly cause the different levels of turbulence between the two codes.

Zhu, Weishan; Gu, Qiusheng [School of Astronomy and Space Science, Nanjing University, Nanjing, 210092 (China); Feng, Long-long [Purple Mountain Observatory, Nanjing, 210008 (China); Xia, Yinhua [School of Mathematical Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Shu, Chi-Wang [Division of Applied Mathematics, Brown University, Providence, RI 02912 (United States); Fang, Li-Zhi [Department of Physics, University of Arizona, Tucson, AZ 85721 (United States)

2013-11-01T23:59:59.000Z

178

Pseudospin formulation of kinetic Ising models  

Science Journals Connector (OSTI)

It is shown that Glauber's kinetic Ising model is equivalent to an Ising model with multispin interactions in a transverse field. In one dimension, certain of Glauber's results are recovered by using the well-known fermion representation for spin-12.

Eric D. Siggia

1977-09-01T23:59:59.000Z

179

ERNSTMORITZARNDTUNIVERSITAT Absolute number density and kinetic analysis  

E-Print Network [OSTI]

and C2F4 molecules in pulsed CF4/H2 rf plasmas I n a u g u r a l d i s s e r t a t i o n zur Erlangung and kinetics of the target species in pulsed CF4/H2 rf plasmas 69 5.1 Plasma process parameters selected

Greifswald, Ernst-Moritz-Arndt-Universität

180

Kinetics of Anionic Surfactant Anoxic Degradation  

E-Print Network [OSTI]

) is the surfactant commonly used in space habitation. The two biofilm models differ in that one assumes a constant biofilm density and the other allows biofilm density changes based on space occupancy theory. Extant kinetic analysis of a mixed microbial culture using...

Camacho, Julianna G.

2010-07-14T23:59:59.000Z

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


181

STATISTICAL ANALYSIS OF PROTEIN FOLDING KINETICS  

E-Print Network [OSTI]

STATISTICAL ANALYSIS OF PROTEIN FOLDING KINETICS AARON R. DINNER New Chemistry Laboratory for Protein Folding: Advances in Chemical Physics, Volume 120. Edited by Richard A. Friesner. Series Editors Experimental and theoretical studies have led to the emergence of a unified general mechanism for protein

Dinner, Aaron

182

Chemical Kinetic Modeling of Non-Petroleum Based Fuels | Department...  

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

ft010pitz2011o.pdf More Documents & Publications Chemical Kinetic Modeling of Non-Petroleum Based Fuels Chemical Kinetic Modeling of Fuels Simulation of High Efficiency Clean...

183

Direct kinetic correlation of carriers and ferromagnetism in...  

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

kinetic correlation of carriers and ferromagnetism in Co2+ : ZnO. Direct kinetic correlation of carriers and ferromagnetism in Co2+ : ZnO. Abstract: We report the use of controlled...

184

Ethylbenzene dehydrogenation into styrene: kinetic modeling and reactor simulation  

E-Print Network [OSTI]

detailed kinetic model for coke formation and gasification, which was coupled to the kinetic model for the main reactions. The calculation of the dynamic equilibrium coke content provided a crucial guideline for the selection of the steam to ethylbenzene...

Lee, Won Jae

2007-04-25T23:59:59.000Z

185

Kinetic modelling of the thermal decomposition of ettringite into metaettringite  

E-Print Network [OSTI]

1 Kinetic modelling of the thermal decomposition of ettringite into metaettringite J. Pourchez recent insights into thermal stability and decomposition mechanisms of ettringite, a lack of knowledge isothermal conditions. Keywords: ettringite, metaettringite, thermal decomposition, kinetic modelling. 1

Boyer, Edmond

186

Chemical Kinetics Research on HCCI and Diesel Fuels  

Broader source: Energy.gov [DOE]

Discusses detailed chemical kinetics mechanisms for complex hydrocarbon fuels and computationally efficiecnt, accurate methodologies for modeling advanced combustion strategies.

187

Factored Conditional Restricted Boltzmann Machines for Modeling Motion Style  

E-Print Network [OSTI]

human motion. Like the CRBM, our model can capture diverse styles of motion with a single set by controlling its effective biases. The model would be much more powerful if the equilibrium sample

Hinton, Geoffrey E.

188

Motion compensation method for moving pictures with binary shape  

Science Journals Connector (OSTI)

This paper describes a motion compensation method for arbitrarily shaped moving visual objects. To utilise both the inter-frame correlation and the texture-shape correlation, we use macroblock-based motion compensation for binary shape coding as well as texture coding. To efficiently achieve motion compensation for a moving binary shape, we introduce extra motion vectors for the shape coding in addition to the texture motion vectors, where the shape motion vectors are coded by referring to the texture motion vectors. The proposed method can successfully save more than 50% of the number of bits in comparison with the intra-only method. The effectiveness of the proposed method has been established through MPEG4 standardisation activity, and the proposed motion-compensation framework has been adopted by the MPEG-4 visual coding standard (ISO 14496-2).

Shinya Kadono; Choong Seng Boon; Minoru Etoh

2000-01-01T23:59:59.000Z

189

Exploiting quaternions to support expressive interactive character motion  

E-Print Network [OSTI]

A real-time motion engine for interactive synthetic characters, either virtual or physical, needs to allow expressivity and interactivity of motion in order to maintain the illusion of life. Canned animation examples from ...

Johnson, Michael Patrick, 1971-

2003-01-01T23:59:59.000Z

190

Detection of first and second order motion Alexander Grunewald  

E-Print Network [OSTI]

Neuroinformatik Vniversitat VIm 89069 VIm Germany hneumann@neuro.informatik.uni-ulm.de Abstract A model of motion

Neumann, Heiko

191

Rotational and divergent kinetic energy in the mesoscale model ALADIN  

E-Print Network [OSTI]

Rotational and divergent kinetic energy in the mesoscale model ALADIN By V. BLAZ ICA1 *, N. Z AGAR1 received 7 June 2012; in final form 7 March 2013) ABSTRACT Kinetic energy spectra from the mesoscale. It is shown that about 50% of kinetic energy in the free troposphere in ALADIN is divergent energy

Zagar, Nedjeljka

192

Quantitative Spreading Kinetics of a Three Molecular Layer Liquid Patch  

Science Journals Connector (OSTI)

Quantitative Spreading Kinetics of a Three Molecular Layer Liquid Patch ... The late stage kinetics of the spreading of a smectic nanodrop on a solid surface was investigated by direct and real time imaging of a three molecular layer patch using the SEEC microscopy. ... (15) At some stage of the spreading kinetics, the structure reduces to a single bilayer patch lying on the surface monolayer. ...

Olivier Noel; Jean-Luc Buraud; Laurent Berger; Dominique Ausserre?

2010-03-19T23:59:59.000Z

193

Worldwide Oil Production Michaelis-Menten Kinetics Correlation and Regression  

E-Print Network [OSTI]

Worldwide Oil Production Michaelis-Menten Kinetics Topic 4 Correlation and Regression Transformed Variables 1 / 13 #12;Worldwide Oil Production Michaelis-Menten Kinetics Outline Worldwide Oil Production Michaelis-Menten Kinetics Lineweaver-Burke double reciprocal plot 2 / 13 #12;Worldwide Oil Production

Watkins, Joseph C.

194

Inlichtingenblad, matlab-en simulink handleiding en  

E-Print Network [OSTI]

Inlichtingenblad, matlab- en simulink handleiding en practicumopgaven IWS 1 #12;4 2 Opmerkingen bij de Matlab-handleiding De voor dit practicum relevante informatie staat in de paragrafen 3.4, 4.1 en 4.2, en in de paragraaf 4.3 tot SIMULINK MENUS en vanaf ANALYSIS COMMANDS van de Matlab-handleiding die

Al Hanbali, Ahmad

195

Knowledge in Motion 2008 Evaluation Roll-up  

E-Print Network [OSTI]

Knowledge in Motion 2008 Evaluation Roll-up Prepared by: Kate Reid-Shute John Duff February 3, 2009 ! #12;Knowledge in Motion 2008 would like to recognize the generous support of: Conference Partners Conference Sponsors Office of the Vice-President (Research) #12;Knowledge in Motion 2008 Evaluation Roll

deYoung, Brad

196

Nuclear Collective Motion from a Group Theoretical Standpoint  

Science Journals Connector (OSTI)

......for calculating the energy spectrum that depends...Introduction The theory of nuclear collective motion...to have a discrete energy sp~ctrum. This...on the subject of nuclear collective motions...model and derive the energy spectrum. *) Supported...2. Survey on the nuclear collective motions......

P. Truini; G. Cassinelli; L. C. Biedenharn

1991-06-01T23:59:59.000Z

197

Inverted gravity, not inverted shape impairs biological motion perception  

E-Print Network [OSTI]

Inverted gravity, not inverted shape impairs biological motion perception Nikolaus Trojetroje. Scrambling should therefore impair perception even more than inversion. Upright and inverted scrambled motion). Is the cause of the inversion effect inverted gravity? If this is the case upright scrambled motion should

Troje, Nikolaus

198

A Code Motion Framework for Global Instruction Scheduling ?  

E-Print Network [OSTI]

of the program; and a transformation step in which the code motion is performed along with compensation code placement and application of code optimizations enabled by code motion. The framework is powerful elimination and partial dead code elimination optimizations with the code motion transformations

Gupta, Rajiv

199

Coupled roll-pitch motion: 1 : 2 resonance simulations  

E-Print Network [OSTI]

Coupled roll-pitch motion: 1 : 2 resonance simulations by H. Alemi Ardakani & T. J. Bridges This report shows the results of the coupled resonant roll-pitch simulation when the ratio of the first two roll-pitch motion Pitch and roll motions are taken to be harmonic and of the form (t) = p sin (pt

Bridges, Tom

200

Controlled Lagrangian Methods and Tracking of Accelerated Motions  

E-Print Network [OSTI]

Controlled Lagrangian Methods and Tracking of Accelerated Motions Dmitry V. Zenkov* Department of uniformly accelerated motions of mechanical systems with symmetry. The theory is illustrated with a simple- grangians to the problem of stabilization of accelerated motions of Lagrangian mechanical systems with symme

Marsden, Jerrold

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


201

Controlled Lagrangian Methods and Tracking of Accelerated Motions  

E-Print Network [OSTI]

Controlled Lagrangian Methods and Tracking of Accelerated Motions Dmitry V. Zenkov* Department of uniformly accelerated motions of mechanical systems with symmetry. The theory is illustrated with a simple- grangians to the problem of stabilization of accelerated motions of Lagrangian mechanical systems

Zenkov, Dmitry

202

Motion planning with sequential convex optimization and convex collision checking  

Science Journals Connector (OSTI)

We present a new optimization-based approach for robotic motion planning among obstacles. Like CHOMP (Covariant Hamiltonian Optimization for Motion Planning), our algorithm can be used to find collision-free trajectories from naïve, straight-line initializations ... Keywords: Motion planning, convex collision checking, sequential convex optimization, trajectory optimization

John Schulman, Yan Duan, Jonathan Ho, Alex Lee, Ibrahim Awwal, Henry Bradlow, Jia Pan, Sachin Patil, Ken Goldberg, Pieter Abbeel

2014-08-01T23:59:59.000Z

203

Intelligent Motion Planning and Analysis with Probabilistic Roadmap Methods for the Study of Complex and High-Dimensional Motions  

E-Print Network [OSTI]

robots and proteins is highly dependent on their motions. In order to study motions in these two divergent domains, the same underlying algorithmic framework can be applied. This method is derived from probabilistic roadmap methods (PRMs) originally...

Tapia, Lydia

2011-02-22T23:59:59.000Z

204

Universal equations and constants of turbulent motion  

E-Print Network [OSTI]

This paper presents a parameter-free theory of shear-generated turbulence at asymptotically high Reynolds numbers in incompressible fluids. It is based on a two-fluids concept. Both components are materially identical and inviscid. The first component is an ensemble of quasi-rigid dipole-vortex tubes as quasi-particles in chaotic motion. The second is a superfluid performing evasive motions between the tubes. The local dipole motions follow Helmholtz' law. The vortex radii scale with the energy-containing length scale. Collisions between quasi-particles lead either to annihilation (likewise rotation, turbulent dissipation) or to scattering (counterrotation, turbulent diffusion). There are analogies with birth and death processes of population dynamics and their master equations. For free homogeneous decay the theory predicts the TKE to follow 1/t. With an adiabatic condition at the wall it predicts the logarithmic law with von Karman's constant as 1/\\sqrt{2 pi} = 0.399. Likewise rotating couples form dissipative patches almost at rest ($\\rightarrow$ intermittency) wherein the spectrum evolves like an "Apollonian gear" as discussed first by Herrmann, 1990. On this basis the prefactor of the 3D-wavenumber spectrum is predicted as (1/3)(4 pi)^{2/3}=1.8; in the Lagrangian frequency spectrum it is simply 2. The results are situated well within the scatter range of observational, experimental and DNS results.

Helmut Z. Baumert

2012-03-22T23:59:59.000Z

205

E-Print Network 3.0 - approximate kinetic equations Sample Search...  

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

equation. Reactor kinetics and Summary: equations, prompt jump approximation; subcritical reactor kinetics, circulating fuel reactor dynamics 5... solution to neutron...

206

Ion mediated crosslink driven mucous swelling kinetics  

E-Print Network [OSTI]

We present an experimentally guided, multi-phasic, multi-species ionic gel model to compare and make qualitative predictions on the rheology of mucus of healthy individuals (Wild Type) versus those infected with Cystic Fibrosis. The mixture theory consists of the mucus (polymer phase) and water (solvent phase) as well as several different ions: H+, Na+ and Ca++. The model is linearized to study the hydration of spherically symmetric mucus gels and calibrated against the experimental data of mucus diffusivities. Near equilibrium, the linearized form of the equation describing the radial size of the gel, reduces to the well-known expression used in the kinetic theory of swelling hydrogels. Numerical studies reveal that the Donnan potential is the dominating mechanism driving the mucus swelling/deswelling transition. However, the altered swelling kinetics of the Cystic Fibrosis infected mucus is not merely governed by the hydroelectric composition of the swelling media, but also due to the altered movement of el...

Sircar, S

2015-01-01T23:59:59.000Z

207

ET Kinetics of Bifunctional Redox Protein Maquettes  

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

Kinetics of Bifunctional Redox Protein Maquettes Kinetics of Bifunctional Redox Protein Maquettes Mitchell W. Mutz, James F. Wishart and George L. McLendon Adv. Chem Ser. 254, Ch. 10, pp. 145-159 Abstract: We prepared three bifunctional redox protein maquettes based on 12-, 16-, and 20-mer three-helix bundles. In each case, the helix was capped with a Co(III) tris-bipyridyl electron acceptor and also functionalized with a C-terminal viologen (1-ethyl-1'-ethyl-4,4'-bipyridinium) donor. Electron transfer (ET) was initiated by pulse radiolysis and flash photolysis and followed spectrometrically to determined average, concentration-independent, first-order rates for the 16-mer and 20-mer maquettes. For the 16-mer bundle, the alpha-helical content was adjusted by the addition of urea or trifluoroethanol to solutions containing the metalloprotein. This

208

Kinetic Ising Model of the Glass Transition  

Science Journals Connector (OSTI)

A graph theory of single-spin-flip kinetic Ising models is developed and applied to a class of spin models with strongly cooperative dynamics. Self-consistent approximations for the spin time correlation function are presented. One of the dynamical models exhibits a glass transition with no underlying thermodynamic singularity. The approximation for the time correlation function predicts a critical temperature, below which small fluctuations from equilibrium in the thermodynamic limit cannot relax in a finite amount of time.

Glenn H. Fredrickson and Hans C. Andersen

1984-09-24T23:59:59.000Z

209

Chemical kinetics models for semiconductor processing  

SciTech Connect (OSTI)

Chemical reactions in the gas-phase and on surfaces are important in the deposition and etching of materials for microelectronic applications. A general software framework for describing homogeneous and heterogeneous reaction kinetics utilizing the Chemkin suite of codes is presented. Experimental, theoretical and modeling approaches to developing chemical reaction mechanisms are discussed. A number of TCAD application modules for simulating the chemically reacting flow in deposition and etching reactors have been developed and are also described.

Coltrin, M.E.; Creighton, J.R. [Sandia National Labs., Albuquerque, NM (United States); Meeks, E.; Grcar, J.F.; Houf, W.G. [Sandia National Labs., Livermore, CA (United States); Kee, R.J. [Colorado School of Mines, Golden, CO (United States)

1997-12-31T23:59:59.000Z

210

Model of the Kinetics of Polymorphous Crystallization  

Science Journals Connector (OSTI)

We propose a phase-field model for the kinetics of isothermal crystallization of an amorphous solid at a concentration nearly equal to the equilibrium crystal stochiometry. The model utilizes two coupled fields: a nonconserved ordering vector field which describes the local lattice structure and a conserved nonordering scalar field describing the local atomic composition. Results of large-scale computer simulations are reported which can be compared with experiments.

B. Morin; K. R. Elder; M. Sutton; Martin Grant

1995-09-11T23:59:59.000Z

211

Kinetics of atoms in a bichromatic field  

SciTech Connect (OSTI)

The kinetics of atoms in a bichromatic field is considered. Analytic solutions are obtained for the force, friction coefficient, and diffusion coefficient in the model of a two-level atom without limitations imposed on the intensity of light fields. This effect is observed in the domain of global minima and maxima of the optical potential (i.e., at points where the relative phase of two standing waves is Greek-Phi-Symbol = 0, {pi}/2.

Prudnikov, O. N., E-mail: llf@laser.nsc.ru [Novosibirsk State University (Russian Federation); Baklanov, A. S. [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation); Taichenachev, A. V. [Novosibirsk State University (Russian Federation)] [Novosibirsk State University (Russian Federation); Tumaikin, A. M. [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation); Yudin, V. I. [Novosibirsk State University (Russian Federation)] [Novosibirsk State University (Russian Federation)

2013-08-15T23:59:59.000Z

212

Isothermal kinetics of new Albany oil shale  

SciTech Connect (OSTI)

From the development of technologies for the utilization of eastern U.S. oil shales, fluidized bed pyrolysis technology is emerging as one of the most promising in terms of oil yield, operating cost, and capital investment. Bench-scale testing of eastern shales has reached a level where scale-up represents the next logical step in the evolution of this technology. A major consideration in this development and an essential part of any fluidized bed reactor scale-up effort--isothermal kinetics-- has largely been ignored for eastern US shale with the exception of a recent study conducted by Richardson et al. with a Cleveland shale. The method of Richardson et al. was used previously by Wallman et al. with western shale and has been used most recently by Forgac, also with western shale. This method, adopted for the present study, entails injecting a charge of shale into a fluidized bed and monitoring the hydrocarbon products with a flame ionization detector (FID). Advantages of this procedure are that fluidized bed heat-up effects are simulated exactly and real-time kinetics are obtained due to the on-line FID. Other isothermal methods have suffered from heat-up and cool-down effects making it impossible to observe the kinetics at realistic operating temperatures. A major drawback of the FID approach, however, is that no differentiation between oil and gas is possible.

Carter, S.D.

1987-04-01T23:59:59.000Z

213

Kinetic regulation of coated vesicle secretion  

E-Print Network [OSTI]

The secretion of vesicles for intracellular transport often rely on the aggregation of specialized membrane-bound proteins into a coat able to curve cell membranes. The nucleation and growth of a protein coat is a kinetic process that competes with the energy-consuming turnover of coat components between the membrane and the cytosol. We propose a generic kinetic description of coat assembly and the formation of coated vesicles, and discuss its implication to the dynamics of COP vesicles that traffic within the Golgi and with the Endoplasmic Reticulum. We show that stationary coats of fixed area emerge from the competition between coat growth and the recycling of coat components, in a fashion resembling the treadmilling of cytoskeletal filaments. We further show that the turnover of coat components allows for a highly sensitive switching mechanism between a quiescent and a vesicle producing membrane, upon a slowing down of the exchange kinetics. We claim that the existence of this switching behaviour, also triggered by factors such as the presence of cargo and variation of the membrane mechanical tension, allows for efficient regulation of vesicle secretion. We propose a model, supported by different experimental observations, in which vesiculation of secretory membranes is impaired by the energy consuming desorption of coat proteins, until the presence of cargo or other factors triggers a dynamical switch into a vesicle producing state.

Lionel Foret; Pierre Sens

2008-07-28T23:59:59.000Z

214

Kinetic cascade beyond MHD of solar wind turbulence in two-dimensional hybrid simulations  

E-Print Network [OSTI]

The nature of solar wind turbulence in the dissipation range at scales much smaller than the large MHD scales remains under debate. Here a two-dimensional model based on the hybrid code abbreviated as A.I.K.E.F. is presented, which treats massive ions as particles obeying the kinetic Vlasov equation and massless electrons as a neutralizing fluid. Up to a certain wavenumber in the MHD regime, the numerical system is initialized by assuming a superposition of isotropic Alfv\\'en waves with amplitudes that follow the empirically confirmed spectral law of Kolmogorov. Then turbulence develops and energy cascades into the dispersive spectral range, where also dissipative effects occur. Under typical solar wind conditions, weak turbulence develops as a superposition of normal modes in the kinetic regime. Spectral analysis in the direction parallel to the background magnetic field reveals a cascade of left-handed Alfv\\'en/ion-cyclotron waves up to wave vectors where their resonant absorption sets in, as well as a cont...

Verscharen, Daniel; Motschmann, Uwe; Mller, Joachim

2012-01-01T23:59:59.000Z

215

MCAMC: An Advanced Algorithm for Kinetic Monte Carlo Simulations: from Magnetization Switching to Protein Folding  

E-Print Network [OSTI]

We present the Monte Carlo with Absorbing Markov Chains (MCAMC) method for extremely long kinetic Monte Carlo simulations. The MCAMC algorithm does not modify the system dynamics. It is extremely useful for models with discrete state spaces when low-temperature simulations are desired. To illustrate the strengths and limitations of this algorithm we introduce a simple model involving random walkers on an energy landscape. This simple model has some of the characteristics of protein folding and could also be experimentally realizable in domain motion in nanoscale magnets. We find that even the simplest MCAMC algorithm can speed up calculations by many orders of magnitude. More complicated MCAMC simulations can gain further increases in speed by orders of magnitude.

M. A. Novotny; Shannon M. Wheeler

2002-11-02T23:59:59.000Z

216

Kinetic aspects of the ion current layer in a reconnection outflow exhaust  

SciTech Connect (OSTI)

Kinetic aspects of the ion current layer at the center of a reconnection outflow exhaust near the X-type region are investigated by a two-dimensional particle-in-cell (PIC) simulation. The layer consists of magnetized electrons and unmagnetized ions that carry a perpendicular electric current. The ion fluid appears to be nonideal, sub-Alfvnic, and nondissipative. The ion velocity distribution functions contain multiple populations, such as global Speiser ions, local Speiser ions, and trapped ions. The particle motion of the local Speiser ions in an appropriately rotated coordinate system explains the ion fluid properties very well. The trapped ions are the first demonstration of the regular orbits in the chaotic particle dynamics [Chen and Palmadesso, J. Geophys. Res. 91, 1499 (1986)] in self-consistent PIC simulations. They would be observational signatures in the ion current layer near reconnection sites.

Zenitani, Seiji; Wada, Tomohide [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)] [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Shinohara, Iku [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210 (Japan)] [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210 (Japan); Nagai, Tsugunobu [Tokyo Institute of Technology, Tokyo 152-8551 (Japan)] [Tokyo Institute of Technology, Tokyo 152-8551 (Japan)

2013-09-15T23:59:59.000Z

217

Concept of the effective potential in describing the motion of ions in a quadrupole mass filter  

SciTech Connect (OSTI)

We propose a generalization of the effective potential theory for the motion of particles in a rapidly oscillating electric field for the stability parameters lying near the boundary of the diagram where the standard effective potential theory is inapplicable. We derive the dynamic equations describing the variation of the envelope of ion oscillations for the motion of ions near the stability vertex of the first zone of the quadrupole mass filter. We reduce them to the form of the Hamilton equations for oscillations of a material particle in the field of potential forces. We obtain expressions for the effective potential well. It is shown that in spite of the high kinetic energy of oscillations, the depth of the effective potential well for ions in the quadrupole is less than 1 eV in the case of filtration with a mass resolution exceeding 200 units. The acceptance of the mass filter is calculated as a function of the stability parameters and the resolving power.

Sudakov, M. Yu., E-mail: m.soudakov@gmail.com; Apatskaya, M. V. [Ryazan State Radio Engineering University (Russian Federation)

2012-08-15T23:59:59.000Z

218

Casimir friction: Relative motion more generally  

E-Print Network [OSTI]

This paper extends our recent study on Casimir friction forces for dielectric plates moving parallel to each other [J. S. H{\\o}ye and I. Brevik, Eur. Phys. J. D {\\bf 68}, 61 (2014)], to the case where the plates are no longer restricted to rectilinear motion. Part of the mathematical formalism thereby becomes more cumbersome, but reduces in the end to the form that we could expect to be the natural one in advance. As an example, we calculate the Casimir torque on a planar disc rotating with constant angular velocity around its vertical symmetry axis next to another plate.

Johan S. Hye; Iver Brevik

2014-09-23T23:59:59.000Z

219

Quantum Brownian motion model for stock markets  

E-Print Network [OSTI]

We investigate the relevance between quantum open systems and stock markets. A Quantum Brownian motion model is proposed for studying the interaction between the Brownian system and the reservoir, i.e., the stock index and the entire stock market. Based on the model, we investigate the Shanghai Stock Exchange of China from perspective of quantum statistics, and thereby examine the behaviors of the stock index violating the efficient market hypothesis, such as fat-tail phenomena and non-Markovian features. Our interdisciplinary works thus help to discovery the underlying quantum characteristics of stock markets and develop new research fields of econophysics.

Meng, Xiangyi; Guo, Hong

2014-01-01T23:59:59.000Z

220

Energy Conservation Tests of a Coupled Kinetic-kinetic Plasma-neutral Transport Code  

SciTech Connect (OSTI)

A Monte Carlo neutral transport routine, based on DEGAS2, has been coupled to the guiding center ion-electron-neutral neoclassical PIC code XGC0 to provide a realistic treatment of neutral atoms and molecules in the tokamak edge plasma. The DEGAS2 routine allows detailed atomic physics and plasma-material interaction processes to be incorporated into these simulations. The spatial pro le of the neutral particle source used in the DEGAS2 routine is determined from the uxes of XGC0 ions to the material surfaces. The kinetic-kinetic plasma-neutral transport capability is demonstrated with example pedestal fueling simulations.

D.P. Stotler, C.S. Chang, S.H. Ku, J. Lang and G. Park

2012-08-29T23:59:59.000Z

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


221

Pedestal Fueling Simulations with a Coupled Kinetic-kinetic Plasma-neutral Transport Code  

SciTech Connect (OSTI)

A Monte Carlo neutral transport routine, based on DEGAS2, has been coupled to the guiding center ion-electron-neutral neoclassical PIC code XGC0 to provide a realistic treatment of neutral atoms and molecules in the tokamak edge plasma. The DEGAS2 routine allows detailed atomic physics and plasma-material interaction processes to be incorporated into these simulations. The spatial pro le of the neutral particle source used in the DEGAS2 routine is determined from the uxes of XGC0 ions to the material surfaces. The kinetic-kinetic plasma-neutral transport capability is demonstrated with example pedestal fueling simulations.

D.P. Stotler, C.S. Chang, S.H. Ku, J. Lang and G.Y. Park

2012-08-29T23:59:59.000Z

222

Internal and external rotation of the shoulder: Effects of plane, end-range determination, and scapular motion  

E-Print Network [OSTI]

). Passive humerothoracic motion was significantly greater than active humero- thoracic motion for internal

Karduna, Andrew

223

Kinetic equation for the Ising model  

Science Journals Connector (OSTI)

A time-dependent projection-operator formalism is used to derive a kinetic equation for the single-spin density operator in an Ising system of N two-state spins in weak interaction with a heat bath. This equation contains a contribution at the self-consistent-field level and also higher-order contributions due to dynamically generated correlations. A detailed evaluation of the self-consistent-field terms is made. Possibilities for generalizing the method to obtain equations for multispin density operators are discussed.

Michael R. Emptage; Paul Hawrylak; Subir K. Bose

1982-12-01T23:59:59.000Z

224

Hamiltonian approach to kinetic Ising models  

Science Journals Connector (OSTI)

In the framework of the quantum approach to stochastic dynamics, the master equations governing the temporal evolution of the kinetic Ising models (KIM) are cast in the form of imaginary-time Schrdinger equations with second-quantized Hermitian Hamiltonians. On the basis of the quantum formalism a classical evolution equation is derived for an effective time-dependent Ising-type Hamiltonian. The grand ensemble corresponding to the latter describes the statistics of the spin configurations evolving under the dynamics of the KIM. The latter approach was used to qualitatively explain the results of recent Monte Carlo simulations of the Kawasaki KIM. 1996 The American Physical Society.

V. I. Tokar

1996-02-01T23:59:59.000Z

225

Studies of combustion kinetics and mechanisms  

SciTech Connect (OSTI)

The objective of the current research is to gain new quantitative knowledge of the kinetics and mechanisms of polyatomic free radicals which are important in hydrocarbon combustion processes. The special facility designed and built for these (which includes a heatable tubular reactor coupled to a photoionization mass spectrometer) is continually being improved. Where possible, these experimental studies are coupled with theoretical ones, sometimes conducted in collaboration with others, to obtain an improved understanding of the factors determining reactivity. The decomposition of acetyl radicals, isopropyl radicals, and n-propyl radicals have been studied as well as the oxidation of methylpropargyl radicals.

Gutman, D. [Catholic Univ. of America, Washington, DC (United States)

1993-12-01T23:59:59.000Z

226

Kinetic equilibration from a radiative transport  

E-Print Network [OSTI]

Kinetic equilibration during the early stage of a relativistic heavy ion collision is studied using a radiative transport model. Thermalization is found to dominate over expansion with medium regulated cross sections. Pressure anisotropy shows an approximate alpha_s scaling when radiative processes are included. It approaches an asymptotic time evolution on a time scale of 1 to 2 fm/c. Energy density is also found to approach an asymptotic time evolution that decreases slower than the ideal hydro evolution. These observations indicate that viscosity is important during the early longitudinal expansion phase of a relativistic heavy ion collision.

Bin Zhang

2009-03-11T23:59:59.000Z

227

Kinetic analysis of dynamic PET data  

SciTech Connect (OSTI)

Our goal is to quantify regional physiological processes such as blood flow and metabolism by means of tracer kinetic modeling and positron emission tomography (PET). Compartmental models are one way of characterizing the behavior of tracers in physiological systems. This paper describes a general method of estimating compartmental model rate constants from measurements of the concentration of tracers in blood and tissue, taken at multiple time intervals. A computer program which applies the method is described, and examples are shown for simulated and actual data acquired from the Donner 280-Crystal Positron Tomograph.

Knittel, B.

1983-12-01T23:59:59.000Z

228

Adding linear kinetic effects to existing finite-difference simulations  

SciTech Connect (OSTI)

We present the proof-of-principle KINETIC-J module for iterative addition of all-order kinetic effects (parallel and perpendicular) in both the IC and EC frequency ranges, to any existing FD or FE frequency-domain full-wave RF simulation. The module calculates the linear, kinetic plasma current, such that given f 0 (r,v) and the cold plasma solution as an initial guess at the wave electric field, iterating the KINETIC-J module and the existing code (its internal plasma current replaced with the output of the module) converges to the kinetic solution. Since KINETIC-J does not use the k-space representation of the hot plasma dielectric, in favor of data parallel numeric integrals, implementing the module requires minimal code changes.

Green, David L [ORNL; Berry, Lee Alan [XCEL Engineering Inc., Oak Ridge

2013-01-01T23:59:59.000Z

229

Stability of global driftkinetic Alfv'en eigenmodes in A.JAUN 1 , J.VACLAVIK 2 , L.VILLARD 2  

E-Print Network [OSTI]

wavefield, the mode converted kinetic Alfv'en, ion­acoustic and drift waves. The power transfers between.VILLARD 2 1 Alfv'en Laboratory, EURATOM­NFR Association, KTH, SE­100 44 Stockholm, Sweden 2 CRPP­EPFL, CH the wave and the particles show that the drift character of the wavefield in the core destabilizes DKAE

Jaun, André

230

Motion tests of a twin-hulled semi-submersible  

Science Journals Connector (OSTI)

Experimental studies have been carried out on the motions of the model platform under intact, progressive flooding and post flooding conditions. During these extensive experimental studies, two wave heading angles, which are head and beam seas, were taken into account and the motion experiments were repeated for two different GMs. Before the model tests under intact, progressive flooding and post flooding conditions, inclination tests and natural period tests were carried out in order to identify the actual GM of the model and to measure the natural heave, roll and pitch periods of the model. Instrumentation for motion response experiments is described. Descriptions of calibration procedures, motion records and the motion test procedure are given in detail. Only a few of about 110 individual experimental runs performed to measure heave, sway, surge, roll, pitch and yaw motions as well as the flooding mass versus flooding time are presented and discussed.

M. Sylemez

1995-01-01T23:59:59.000Z

231

Measurement and Compensation of BPM Chamber Motion in HLS  

SciTech Connect (OSTI)

Significant horizontal drifts in the beam orbit in the storage ring of HLS (Hefei Light Source) have been seen for many years. What leads to the motion of Beam Position Monitor (BPM) chamber is thermal expansion mainly caused by the synchrotron light. To monitor the BPM chamber motions for all BPMs, a BPM chamber motion measurement system is built in real-time. The raster gauges are used to measure the displacements. The results distinctly show the relation between the BPM chamber motion and the beam current. To suppress the effect of BPM chamber motion, a compensation strategy is implemented at HLS. The horizontal drifts of beam orbit have been really suppressed within 20{mu}m without the compensation of BPM chamber motion in the runtime.

Li, J. W.; Sun, B. G.; Cao, Y.; Xu, H. L.; Lu, P.; Li, C.; Xuan, K.; Wang, J. G. [NSRL, School of Nuclear Science and Technology, University of Science and Technology of China Hefei, Anhui230029 (China)

2010-06-23T23:59:59.000Z

232

Analysis of a kinetic multi-segment foot model part II: Kinetics and clinical implications  

Science Journals Connector (OSTI)

Kinematic multi-segment foot models have seen increased use in clinical and research settings, but the addition of kinetics has been limited and hampered by measurement limitations and modeling assumptions. In this second of two companion papers, we complete the presentation and analysis of a three segment kinetic foot model by incorporating kinetic parameters and calculating joint moments and powers. The model was tested on 17 pediatric subjects (ages 718years) during normal gait. Ground reaction forces were measured using two adjacent force platforms, requiring targeted walking and the creation of two sub-models to analyze ankle, midtarsal, and 1st metatarsophalangeal joints. Targeted walking resulted in only minimal kinematic and kinetic differences compared with walking at self selected speeds. Joint moments and powers were calculated and ensemble averages are presented as a normative database for comparison purposes. Ankle joint powers are shown to be overestimated when using a traditional single-segment foot model, as substantial angular velocities are attributed to the mid-tarsal joint. Power transfer is apparent between the 1st metatarsophalangeal and mid-tarsal joints in terminal stance/pre-swing. While the measurement approach presented here is limited to clinical populations with only minimal impairments, some elements of the model can also be incorporated into routine clinical gait analysis.

Dustin A. Bruening; Kevin M. Cooney; Frank L. Buczek

2012-01-01T23:59:59.000Z

233

3.205 Thermodynamics and Kinetics of Materials, Fall 2003  

E-Print Network [OSTI]

Laws of thermodynamics applied to materials and materials processes. Solution theory. Equilibrium diagrams. Overview of fluid transport processes. Kinetics of processes that occur in materials, including diffusion, phase ...

Allen, Samuel M.

234

Simulations of Kinetic Events at the Atomic Scale  

Broader source: Energy.gov [DOE]

Presentation on the Simulations of Kinetic Events at the Atomic Scale given at the DOE Theory Focus Session on Hydrogen Storage Materials on May 18, 2006.

235

Kinetics, Mechanics and Microstructure Changes in Storage Media  

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

Focus Session on Hydrogen Storage DOE Hydrogen Program Review Crystal Gateway Marriott, Crystal City, VA May 18, 2006 Kinetics, Mechanics and Microstructure Changes in Storage...

236

Extraction of Equilibrium Energy and Kinetic Parameters from...  

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

Investigator for the Extraction of Equilibrium Energy and Kinetic Parameters from Single Molecule Force Spectroscopy Data. LLNL BES Programs Highlight Extraction of...

237

Kinetics, Mechanics and Microstructure Changes in Storage Media  

Broader source: Energy.gov [DOE]

Presentation on the Kinetics, Mechanics and Microstructure Changes in Storage Media given at the DOE Theory Focus Session on Hydrogen Storage Materials on May 18, 2006.

238

Kinetic transport theory with quantum coherence  

E-Print Network [OSTI]

We derive transport equations for fermions and bosons in spatially or temporally varying backgrounds with special symmetries, by use of the Schwinger-Keldysh formalism. In a noninteracting theory the coherence information is shown to be encoded in new singular shells for the 2-point function. Imposing this phase space structure to the interacting theory leads to a a self-consistent equation of motion for a physcial density matrix, including coherence and a well defined collision integral. The method is applied e.g. to demonstrate how an initially coherent out-of-equlibrium state approaches equlibrium through decoherence and thermalization.

Matti Herranen; Kimmo Kainulainen; Pyry M. Rahkila

2008-11-06T23:59:59.000Z

239

Chemical kinetics parameters of nuclear graphite gasification  

Science Journals Connector (OSTI)

This paper provides chemical kinetics parameters for the gasification of nuclear graphite grades of IG-110, IG-430, NBG-18 and NBG-25 and presents empirical correlations for their surface areas of free active sites as a function of mass. The kinetics parameters for the four elementary chemical reactions of gasification of these grades of nuclear graphite include the values and Gaussian distributions of the specific activation energies and the values of the pre-exponential rate coefficients for the adsorption of oxygen and desorption of CO and CO2 gases. The values of these parameters and the surface area of free active sites for IG-110 and NB-25, with fine and medium petroleum coke filler particles, are nearly the same, but slightly different from those of NBG-18 and IG-430, with medium and fine coal tar pitch coke filler particles. Recommended parameters are applicable to future safety analysis of high and very high temperature gas cooled reactors in the unlikely event of a massive air ingress accident.

Mohamed S. El-Genk; Jean-Michel P. Tournier

2013-01-01T23:59:59.000Z

240

Ion mediated crosslink driven mucous swelling kinetics  

E-Print Network [OSTI]

We present an experimentally guided, multi-phasic, multi-species ionic gel model to compare and make qualitative predictions on the rheology of mucus of healthy individuals (Wild Type) versus those infected with Cystic Fibrosis. The mixture theory consists of the mucus (polymer phase) and water (solvent phase) as well as several different ions: H+, Na+ and Ca++. The model is linearized to study the hydration of spherically symmetric mucus gels and calibrated against the experimental data of mucus diffusivities. Near equilibrium, the linearized form of the equation describing the radial size of the gel, reduces to the well-known expression used in the kinetic theory of swelling hydrogels. Numerical studies reveal that the Donnan potential is the dominating mechanism driving the mucus swelling/deswelling transition. However, the altered swelling kinetics of the Cystic Fibrosis infected mucus is not merely governed by the hydroelectric composition of the swelling media, but also due to the altered movement of electrolytes as well as due to the defective properties of the mucin polymer network.

S. Sircar; A. J. Roberts

2015-01-20T23:59:59.000Z

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


241

Acifluorfen Sorption and Sorption Kinetics in Soil  

Science Journals Connector (OSTI)

The time-dependent increase in sorbed acifluorfen up to 48 h was described by a two-site equilibrium/kinetic model where Si is sorbed concentration (?mol kg-1), C is solution concentration (?M), ke (L kg-1) is the coefficient for sorption at sites 1 exhibiting instantaneous equilibrium, kf (L kg-1 h-1) and kr (h-1) are rate constants for sorption and desorption, respectively, from sites 2, 1/N accounts for sorption nonlinearity, and t (h) is time. ... Alternatively, acifluorfen degradation and time-dependent sorption of metabolites may be qualitatively described by assuming first-order kinetics: where P is the solution concentration of all metabolic products (?M), SP is concentration of sorbed metabolite (?mol kg-1), kd (h-1) and kp (h-1) are first-order rate constants for substrate degradation and metabolite sorption, respectively, v is solution volume (L), and m is sorbent mass (kg). ... All sorption isotherms were nonlinear and exponent (1/N) values less than 1 (Table 1), indicating decreasing fraction sorbed with increasing initial acifluorfen concentration. ...

Martin A. Locke; Lewis A. Gaston; Robert M. Zablotowicz

1997-01-20T23:59:59.000Z

242

Direct Kinetic Measurements of a Criegee Intermediate  

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

Direct Kinetic Measurements of a Criegee Intermediate Print Direct Kinetic Measurements of a Criegee Intermediate Print In the earth's troposphere, which blankets the planet surface where we live and breathe, dust particles, gas molecules, water vapor, and sunlight provide the ingredients for a multitude of chemical reactions that can generate effects ranging from clouds and smog to acid rain and climate change. In 1949, chemist Rudolf Criegee proposed a novel chemical pathway for one such reaction, known as ozonolysis: the destruction of alkenes (a type of hydrocarbon), via reaction with ozone, a key pollutant in the troposphere. Although there has been much indirect evidence supporting Criegee's mechanism, breakthrough research done at the ALS by chemists from Sandia National Laboratories, the University of Manchester, and Bristol University has for the first time directly measured reaction rates for so-called "Criegee intermediates," elusive molecules formed at intermediate stages of ozonolysis. The surprising results may have important implications for subjects ranging from advanced engine design to air quality and climate modeling.

243

Read about the Brownian Motion. - Department of Mathematics ...  

E-Print Network [OSTI]

motion of the suspended thermal molecules. On the other .... properties are exploited in animation to generate pictures of artificial plants and landscapes. Z. (

244

Motion Capture of Character Interactions with a Rope.  

E-Print Network [OSTI]

??We present a solution to animating interactions between characters and thin, non-rigid bodies using a passive optical motion capture system. Prior work in human body (more)

Porter, Bryce Zachary

2012-01-01T23:59:59.000Z

245

A Motion Capture System Based on Natural Interaction Devices.  

E-Print Network [OSTI]

??This thesis investigated the feasibility of building a simple and affordable motion capturing system. A pre-study was made to understand the potential uses and benefits (more)

Fahim, George

2012-01-01T23:59:59.000Z

246

Integrating Autodesk Mayas muscle simulation with Kinect motion capture.  

E-Print Network [OSTI]

?? Abstract In most of the animation pipelines today, motion capture and different simulations e.g. Autodesk Maya Muscle is used to get a more realistic (more)

Axelsson, Jessica

2014-01-01T23:59:59.000Z

247

Potomac Electric Power Company's Motion to Intervene and Comment...  

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

to Intervene and Comment in Support of Emergency Petition and Complaint Potomac Electric Power Company's Motion to Intervene and Comment in Support of Emergency Petition and...

248

Wall and laser spot motion in cylindrical hohlraums  

SciTech Connect (OSTI)

Wall and laser spot motion measurements in empty, propane-filled and plastic (CH)-lined gold coated cylindrical hohlraums were performed on the Omega laser facility [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)]. Wall motion was measured using axial two-dimensional (2D) x-ray imaging and laser spot motion was perpendicularly observed through a thinned wall using streaked hard x-ray imaging. Experimental results and 2D hydrodynamic simulations show that while empty targets exhibit on-axis plasma collision, CH-lined and propane-filled targets inhibit wall expansion, corroborated with perpendicular streaked imaging showing a slower motion of laser spots.

Huser, G.; Courtois, C.; Monteil, M.-C. [CEA, DAM, DIF, F-91297 Arpajon (France)

2009-03-15T23:59:59.000Z

249

Free motion in deformed (quantum) four-dimensional space  

E-Print Network [OSTI]

It is shown that trajectories of free motion of the particles in deformed ("quantum") four dimensional space-time are quadratic curves.

A. N. Leznov

2007-07-23T23:59:59.000Z

250

Motional Broadening in Ensembles With Heavy-Tail Frequency Distribution  

E-Print Network [OSTI]

We show that the spectrum of an ensemble of two-level systems can be broadened through `resetting' discrete fluctuations, in contrast to the well-known motional-narrowing effect. We establish that the condition for the onset of motional broadening is that the ensemble frequency distribution has heavy tails with a diverging first moment. We find that the asymptotic motional-broadened lineshape is a Lorentzian, and derive an expression for its width. We explain why motional broadening persists up to some fluctuation rate, even when there is a physical upper cutoff to the frequency distribution.

Yoav Sagi; Rami Pugatch; Ido Almog; Nir Davidson; Michael Aizenman

2011-03-02T23:59:59.000Z

251

The MAST motional Stark effect diagnostic  

SciTech Connect (OSTI)

A motional Stark effect (MSE) diagnostic is now installed and operating routinely on the MAST spherical tokamak, with 35 radial channels, spatial resolution of {approx}2.5 cm, and time resolution of {approx}1 ms at angular noise levels of {approx}0.5 deg. Conventional (albeit very narrow) interference filters isolate {pi} or {sigma} polarized emission. Avalanche photodiode detectors with digital phase-sensitive detection measure the harmonics of a pair of photoelastic modulators operating at 20 and 23 kHz, and thus the polarization state. The {pi} component is observed to be significantly stronger than {sigma}, in reasonably good agreement with atomic physics calculations, and as a result, almost all channels are now operated on {pi}. Trials with a wide filter that admits the entire Stark pattern (relying on the net polarization of the emission) have demonstrated performance almost as good as the conventional channels. MSE-constrained equilibrium reconstructions can readily be produced between pulses.

Conway, N. J.; De Bock, M. F. M.; Michael, C. A.; Walsh, M. J.; Carolan, P. G.; Hawkes, N. C.; Shibaev, S.; Wearing, G. [EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom); Rachlew, E. [Department of Physics, KTH, EURATOM-VR Association, SE-10691 Stockholm (Sweden); McCone, J. F. G. [Department of Physics, University College Cork, Association EURATOM-DCU, Cork (Ireland)

2010-10-15T23:59:59.000Z

252

Microsoft Word - CCCNH Motion to Intervene  

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

Campton Conservation Commission Campton Conservation Commission c/o Campton Selectmen's Office 12 Gearty Way Campton, NH 03223 13 September 2013 Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability (OE-20) US Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Re: Northern Pass Transmission, LLC, Application for Presidential Permit OE Docket No. PP-371 Dear Mr. Lawrence: Pursuant to Rules 212 and 214 of the Rules of Practice and Procedure of the Federal Energy Regulatory Commission (18 CFR 385.212 and 214 [2010]), we are enclosing for filing our Motion to Intervene to the above-captioned proceeding. In accordance with the Notice of Application for this proceeding (75 FR 69990), we are enclosing fifteen (15) copies.

253

High proper motion X-ray binaries from the Yale Southern Proper Motion Survey  

E-Print Network [OSTI]

We discuss the results of cross-correlating catalogs of bright X-ray binaries with the Yale Southern Proper Motion catalog (version 4.0). Several objects already known to have large proper motions from Hipparcos are recovered. Two additional objects are found which show substantial proper motions, both of which are unusual in their X-ray properties. One is IGR J17544-2619, one of the supergiant fast X-ray transients. Assuming the quoted distances in the literature for this source of about 3 kpc are correct, this system has a peculiar velocity of about 275 km/sec -- greater than the velocity of a Keplerian orbit at its location of the Galaxy, and in line with the expectations formed from suggestions that the supergiant fast X-ray transients should be highly eccentric. We discuss the possibility that these objects may help explain the existence of short gamma-ray bursts outside the central regions of galaxies. The other is the source 2A~1822-371, which is a member of the small class of objects which are low mas...

Maccarone, Thomas J; Casetti-Dinescu, Dana I

2014-01-01T23:59:59.000Z

254

Kinetic Energy Systems | Open Energy Information  

Open Energy Info (EERE)

Systems Systems Jump to: navigation, search Name Kinetic Energy Systems Place Ocala, Florida Zip 34476 Sector Hydro Product Designs and develops tidal generators. Has notably patented the KESC Tidal Generator which is based on free flow hydrodynamics. Coordinates 29.187525°, -82.140394° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":29.187525,"lon":-82.140394,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

255

Detailed Kinetic Modeling of Gasoline Surrogate Mixtures  

SciTech Connect (OSTI)

Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

2009-03-09T23:59:59.000Z

256

Kinetics of wet sodium vapor complex plasma  

SciTech Connect (OSTI)

In this paper, we have investigated the kinetics of wet (partially condensed) Sodium vapor, which comprises of electrons, ions, neutral atoms, and Sodium droplets (i) in thermal equilibrium and (ii) when irradiated by light. The formulation includes the balance of charge over the droplets, number balance of the plasma constituents, and energy balance of the electrons. In order to evaluate the droplet charge, a phenomenon for de-charging of the droplets, viz., evaporation of positive Sodium ions from the surface has been considered in addition to electron emission and electron/ion accretion. The analysis has been utilized to evaluate the steady state parameters of such complex plasmas (i) in thermal equilibrium and (ii) when irradiated; the results have been graphically illustrated. As a significant outcome irradiated, Sodium droplets are seen to acquire large positive potential, with consequent enhancement in the electron density.

Mishra, S. K., E-mail: nishfeb@rediffmail.com [Institute for Plasma Research (IPR), Gandhinagar 382428 (India); Sodha, M. S. [Centre of Energy Studies, Indian Institute of Technology Delhi (IITD), New Delhi 110016 (India)] [Centre of Energy Studies, Indian Institute of Technology Delhi (IITD), New Delhi 110016 (India)

2014-04-15T23:59:59.000Z

257

The Biodiversity of Catalytic Super-Brownian Motion Klaus Fleischmann  

E-Print Network [OSTI]

The Biodiversity of Catalytic Super-Brownian Motion Klaus Fleischmann Weierstra?-Institut f that the reactant has an infinite local biodiversity or genetic abundance. This contrasts the finite local biodiversity of the equilibrium of classical super-Brownian motion. Another question we address

Klenke, Achim

258

Higher-order motion sensitivity in fly visual circuits  

Science Journals Connector (OSTI)

...340 . 6 Zanker J ( 1994 ) Modelling human motion perception. II. Beyond Fourier motion...Frequency (Hz) Frequency (Hz) A B C Power 6 deg wide 12 deg wide 3 deg wideD 10...Hz) Fig. S3. EMD model of output power spectra. To investigate the origin of...

Yu-Jen Lee; Karin Nordstrm

2012-01-01T23:59:59.000Z

259

Triboelectrification Based Motion Sensor for Human-Machine Interfacing  

E-Print Network [OSTI]

into charge transfer between the copper electrode and the ground. Functioned as a self-powered human motion). The independently addressable, self-powered sensor arrays have been utilized to record the electric output signals, human-machine interfacing, self-powered, human joints, fast Fourier transform, motion sensor

Wang, Zhong L.

260

Underwater Human-Robot Interaction via Biological Motion Identification  

E-Print Network [OSTI]

and track human motion. Our objective is to enable human-robot interaction by allowing a robot to follow the detection and tracking of the human operator using the spatio-temporal signature of human motion cues have been shown to be powerful indicators of human activity and have been used

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


261

Construction and optimal search of interpolated motion graphs  

E-Print Network [OSTI]

to synthesize high quality human motion based only on a simple sketch or a few easily specified constraints. We provided by interpolation. We demonstrate the power of this approach by synthesizing optimal or near [16]. Figure 1 shows two examples of the motion generated by our system. We demonstrate the power

262

Planning Motions for Robotic Systems Subject to Differential Constraints  

E-Print Network [OSTI]

Planning Motions for Robotic Systems Subject to Differential Constraints Alessandro De Luca of planning point-to-point motion for general robotic systems subject to non-integrable differential feedback linearization, are illustrated with the aid of four case studies: the plate-ball manipulation

De Luca, Alessandro

263

MOTION FIELD ESTIMATION BY COMBINED VECTOR RATIONAL AND BILINEAR  

E-Print Network [OSTI]

- mation. Bilinear interpolation, operating on a ner in- terpolation grid, takes neighbouring spatial selects the optimal motion vector with respect to the mini- mal boundary matching error 1], the motion exploit spatial correlations. Furthermore, a ner interpolation grid has been de ned according to which one

Gabbouj, Moncef

264

Heart motion measurement with three dimensional sonomicrometry and acceleration sensing  

E-Print Network [OSTI]

Heart motion measurement with three dimensional sonomicrometry and acceleration sensing Tetsuya Horiuchi, E. Erdem Tuna, Ken Masamune, M. Cenk C¸ avus¸oglu Abstract--In robotic assisted beating heart surgery, the goal is to develop a robotic system that can actively cancel heart motion by closely

Cavusoglu, Cenk

265

Analysis of Redundant-Wavelet Multihypothesis for Motion Compensation  

E-Print Network [OSTI]

Analysis of Redundant-Wavelet Multihypothesis for Motion Compensation James E. Fowler Department, Mississippi Abstract An analysis is presented that examines multihypothesis motion-compensated video coding using a redundant wavelet transform to produce multiple predictions that are diverse in transform phase

Fowler, James E.

266

Computational Modeling of Brain Dynamics during Repetitive Head Motions  

E-Print Network [OSTI]

Computational Modeling of Brain Dynamics during Repetitive Head Motions Igor Szczyrba School motions in traumatic scenarios that are as- sociated with severe brain injuries. Our results are based on the linear Kelvin-Voigt brain injury model, which treats the brain matter as a viscoelastic solid, and on our

Burtscher, Martin

267

Description of ground motion data processing codes: Volume 3  

SciTech Connect (OSTI)

Data processing codes developed to process ground motion at the Nevada Test Site for the Weapons Test Seismic Investigations Project are used today as part of the program to process ground motion records for the Nevada Nuclear Waste Storage Investigations Project. The work contained in this report documents and lists codes and verifies the ``PSRV`` code. 39 figs.

Sanders, M.L.

1988-02-01T23:59:59.000Z

268

Atlas: A Novel Kinematic Architecture for Six DOF Motion Platforms  

E-Print Network [OSTI]

Atlas: A Novel Kinematic Architecture for Six DOF Motion Platforms M.J.D. HAYES, R.G. LANGLOIS. This paper presents an overview of the Atlas platform: a novel six DOF motion platform architecture of the mechanism. The decoupling is accomplished by fixing a three DOF spherical orienting device, called the Atlas

Hayes, John

269

Integrative path planning and motion control for handling large components  

Science Journals Connector (OSTI)

For handling large components a large workspace and high precision are required. In order to simplify the path planning for automated handling systems, this task can be divided into global, regional and local motions. Accordingly, different types of ... Keywords: integrative production, motion control, path planning, robotic assembly application

Rainer Mller; Martin Esser; Markus Janssen

2011-12-01T23:59:59.000Z

270

Dynamic Modes of Nanoparticle Motion During Nanoprobe-based Manipulation  

E-Print Network [OSTI]

Dynamic Modes of Nanoparticle Motion During Nanoprobe-based Manipulation Afshin Tafazzoli and Metin -- In this paper, dynamic behavior of nanoparticle motion during nanoprobe-based manipulation is investigated behavior of nanoparticles. This would benefit us on tribological characterization of materials. Index Terms

Sitti, Metin

271

A virtual experiment platform for mechanism motion cognitive learning  

Science Journals Connector (OSTI)

In order to give students a more intuitionistic understanding in mechanism motion system, a virtual experiment platform is designed and developed. First, experimental component models, which contain both visual information and logical information, are ... Keywords: mechanism motion experiment, modelica modeling, virtual experiment, virtual reality

Xiumin Fan; Xi Zhang; Huangchong Cheng; Yanjun Ma; Qichang He

2011-07-01T23:59:59.000Z

272

Carton motion-moment diagram and stiffness characteristics  

Science Journals Connector (OSTI)

To achieve the versatility in developing a packaging machine, it is imperative to understand the motion and stiffness characteristics of cartons during industrial folding and manipulation. It is desirable to describe carton and its folding procedure ... Keywords: equivalent mechanism, motion-moment diagram, packaging carton, stiffness

Guowu Wei; Ruirui Zhang; Jian S. Dai

2010-11-01T23:59:59.000Z

273

An action with positive kinetic energy term for general relativity  

E-Print Network [OSTI]

At first, we state some results in arXiv: 0707.2639, and then, using a positive kinetic energy coordinate condition given by arXiv: 0707.2639, we present an action with positive kinetic energy term for general relativity. Based on this action, the corresponding theory of canonical quantization is discussed.

T. Mei

2007-11-02T23:59:59.000Z

274

MEANKINETIC ENERGY,EDDY ENERGY,AND KINETIC ENERGYEXCHANGEBETWEENFLUCTUATIONSAND MEAN  

E-Print Network [OSTI]

MEANKINETIC ENERGY,EDDY ENERGY,AND KINETIC ENERGYEXCHANGEBETWEENFLUCTUATIONSAND MEAN FLOWWITHIN by cornputing three quantities suggested by the theory of turbulence: the nean kinetic energy, the eddy energy, and the energy exchange between the nean and fluctuating portions of the flow field (ca11ed dE/dt). Contours

Luther, Douglas S.

275

Kinetics and Modeling of Reductive Dechlorination at High PCE  

E-Print Network [OSTI]

Kinetics and Modeling of Reductive Dechlorination at High PCE and TCE Concentrations Seungho Yu for anaerobic reductive dechlorination of tetrachloroethylene (PCE) and trichloroethylene (TCE) were developed. The models were compared with results from batch kinetic tests conducted over a wide range of PCE and TCE

Semprini, Lewis

276

Kinetics of coal pyrolysis and devolatilization  

SciTech Connect (OSTI)

An experimentally based, conceptual model of the devolatilization of a HV bituminous coal is outlined in this report. This model contends that the relative dominance of a process type-chemical kinetic, heat transport, mass transport -- varies with the extent of reaction for a given set of heating conditions and coal type and with experimental conditions for a given coal type and extent of reaction. The rate of devolatilization mass loss process is dominated initially by heat transfer processes, then coupled mass transfer and chemical kinetics, and finally by chemical processes alone. However, the chemical composition of the initial tars are determined primarily by the chemical characteristics of the parent coal. Chemically controlled gas phase reactions of the initial tars and coupled mass transfer and chemically controlled reactions of heavy tars determine the bulk of the light gas yields. For a HV bituminous coal this conceptual model serves to quantify the Two-Component Hypothesis'' of volatiles evolution. The model postulates that the overall rates of coal devolatilization should vary with coal type insofar as the characteristics of the parent coal determine the potential tar yield and the chemical characteristics of the initial tars. Experimental evidence indicates chemical characteristics and yields of primary'' tars vary significantly with coal type. Consequently, the conceptual model would indicate a shift from transport to chemical dominance of rate processes with variation in coal type. Using the conceptual model, United Technologies Research Center has been able to correlate initial mass loss with a heat transfer index for a wide range of conditions for high tar yielding coals. 33 refs., 30 figs., 6 tabs.

Not Available

1987-01-01T23:59:59.000Z

277

ARM - Evaluation Product - KAZR and MWACR Ship Motion Corrections  

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

ProductsKAZR and MWACR Ship Motion Corrections ProductsKAZR and MWACR Ship Motion Corrections Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : KAZR and MWACR Ship Motion Corrections 2012.09.22 - 2013.01.08 Site(s) MAG General Description The second ARM mobile facility has been configured to take advantage of ship-board deployments. At issue is how the motion at sea during these deployments affects the vertically-pointing cloud radars. Two radars of this type - the Ka-band ARM Zenith Radar (KAZR) and the Marine W-band ARM Cloud Radar (MWACR) - are instruments used in ARM's first ship-based field campaign. Each of these radars requires post-processing to account for the ship's motion across the open ocean. The primary adjustments that must be

278

OpenEI:Projects/Motion Charts | Open Energy Information  

Open Energy Info (EERE)

Charts Charts Jump to: navigation, search Contents 1 Motion Chart Creation for OpenEI Admin 2 Setting up the Data and Getting Embed Code 3 Create Your OpenEI Widget 4 Finish the Widget 5 Finished Product Motion Chart Creation for OpenEI Admin If you are an OpenEI administrator and are interested in creating a motion chart widget, you've come to the right place! Setting up the Data and Getting Embed Code The basic information about organizing your data, using Google Docs and Google's motion chart, and getting the embed code (Steps 1 to 3) is available here:Help:Motion_Chart The next steps are: Create Your OpenEI Widget Now that you have your code, its time to set-up your widget: Log-in at OpenEI In the search box, type Widget:Example and replace example with the name of your widget

279

ARM - Evaluation Product - Vertical Air Motion during Large-Scale  

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

ProductsVertical Air Motion during Large-Scale ProductsVertical Air Motion during Large-Scale Stratiform Rain Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Vertical Air Motion during Large-Scale Stratiform Rain Site(s) NIM SGP General Description The Vertical Air Motion during Large-Scale Stratiform Rain (VERVELSR) value-added product (VAP) uses the unique properties of a 95-GHz radar Doppler velocity spectra to produce vertical profiles of air motion during low-to-moderate (1-20 mm/hr) rainfall events It is designed to run at ARM sites that include a W-band ARM cloud radar (WACR) radar with spectra data processing. The VERVELSR VAP, based on the work of Giangrande et al. (2010), operates by exploiting a resonance effect that occurs in

280

Investigations of Slow Motions of the SLAC Linac Tunnel  

SciTech Connect (OSTI)

Investigations of slow transverse motion of the linac tunnel of the Stanford Linear Collider have been performed over period of about one month in December 1999--January 2000. The linac laser alignment system, equipped with a quadrant photodetector, allowed submicron resolution measurement of the motion of the middle of the linac tunnel with respect to its ends. Measurements revealed two major sources responsible for the observed relative motion. Variation of the external atmospheric pressure was found to be the most significant cause of short wavelength transverse motion of the tunnel. The long wavelength component of the motion has been also observed to have a large contribution from tidal effects. The measured data are essential for determination of parameters for the Next Linear Collider.

Seryi, Andrei

2000-08-31T23:59:59.000Z

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


281

Negative kinetic energy term of general relativity and its removing  

E-Print Network [OSTI]

We first present a new Lagrangian of general relativity, which can be divided into kinetic energy term and potential energy term. Taking advantage of vierbein formalism, we reduce the kinetic energy term to a sum of five positive terms and one negative term. Some gauge conditions removing the negative kinetic energy term are discussed. Finally, we present a Lagrangian that only include positive kinetic energy terms. To remove the negative kinetic energy term leads to a new field equation of general relativity in which there are at least five equations of constraint and at most five dynamical equations, this characteristic is different from the normal Einstein field equation in which there are four equations of constraint and six dynamical equations.

T. Mei

2009-03-30T23:59:59.000Z

282

Fully kinetic simulations of megajoule-scale dense plasma focus  

Science Journals Connector (OSTI)

Dense plasma focus (DPF) Z-pinch devices are sources of copious high energy electrons and ions x-rays and neutrons. Megajoule-scale DPFs can generate 1012 neutrons per pulse in deuterium gas through a combination of thermonuclear and beam-target fusion. However the details of the neutron production are not fully understood and past optimization efforts of these devices have been largely empirical. Previously we reported on the first fully kinetic simulations of a kilojoule-scale DPF and demonstrated that both kinetic ions and kinetic electrons are needed to reproduce experimentally observed features such as charged-particle beam formation and anomalous resistivity. Here we present the first fully kinetic simulation of a MegaJoule DPF with predicted ion and neutron spectra neutron anisotropy neutron spot size and time history of neutron production. The total yield predicted by the simulation is in agreement with measured values validating the kinetic model in a second energy regime.

M. May

2014-01-01T23:59:59.000Z

283

Ground Motion Studies at NuMI  

SciTech Connect (OSTI)

Ground motion can cause significant deterioration in the luminosity of a linear collider. Vibration of numerous focusing magnets causes continuous misalignments, which makes the beam emittance grow. For this reason, understanding the seismic vibration of all potential LC sites is essential and related efforts in many sites are ongoing. In this document we summarize the results from the studies specific to Fermilab grounds as requested by the LC project leader at FNAL, Shekhar Mishra in FY04-FY06. The Northwestern group focused on how the ground motion effects vary with depth. Knowledge of depth dependence of the seismic activity is needed in order to decide how deep the LC tunnel should be at sites like Fermilab. The measurements were made in the NuMI tunnel, see Figure 1. We take advantage of the fact that from the beginning to the end of the tunnel there is a height difference of about 350 ft and that there are about five different types of dolomite layers. The support received allowed to pay for three months of salary of Michal Szleper. During this period he worked a 100% of his time in this project. That include one week of preparation: 2.5 months of data taking and data analysis during the full period of the project in order to guarantee that we were recording high quality data. We extended our previous work and made more systematic measurements, which included detailed studies on stability of the vibration amplitudes at different depths over long periods of time. As a consequence, a better control and more efficient averaging out of the daytime variation effects were possible, and a better study of other time dependences before the actual depth dependence was obtained. Those initial measurements were made at the surface and are summarized in Figure 2. All measurements are made with equipment that we already had (two broadband seismometers KS200 from GEOTECH and DL-24 portable data recorder). The offline data analysis took advantage of the full Fourier spectra information and the noise was properly subtracted. The basic formalism is summarized if Figure 3. The second objective was to make a measurement deeper under ground (Target hall, Absorber hall and Minos hall - 150 ft to 350 ft), which previous studies did not cover. All results are summarized in Figure 3 and 4. The measurements were covering a frequency range between 0.1 to 50 Hz. The data was taken continuously for at least a period of two weeks in each of the locations. We concluded that the dependence on depth is weak, if any, for frequencies above 1 Hz and not visible at all at lower frequencies. Most of the attenuation (factor of about 2-3) and damping of ground motion that is due to cultural activity at the surface is not detectable once we are below 150 ft underground. Therefore, accelerator currently under consideration can be build at the depth and there is no need to go deeper underground is built at Fermi National Laboratory.

Mayda M. Velasco; Michal Szleper

2012-02-20T23:59:59.000Z

284

Universal constants and equations of turbulent motion  

E-Print Network [OSTI]

In the spirit of Prandtl [1926], for turbulence at high Reynolds number we present an analogy with the kinetic theory of gases, with dipoles made of Thorpe's [1977] quasi-solid vortex tubes as frictionless, incompressible but deformable quasi-particles. Their movements are governed by Helmholtz' elementary vortex rules applied locally. A contact interaction or 'collision' leads either to random scatter of a trajectory or to the formation of two likewise rotating, fundamentally unstable whirls forming a dissipative patch slowly rotating around its center of mass which is almost at rest. This approach predicts von Karman's constant as 1/sqrt(2 pi) = 0.399 and the spatio-temporal dynamics of energy-containing time and length scales controlling turbulent mixing Baumert [2009]. A link to turbulence spectra was missing so far. In the present paper it is shown that the above image of random vortex-dipole movements is compatible with Kolmogorov's turbulence spectra if dissipative patches, beginning as two likewise ro...

Baumert, Helmut Z

2011-01-01T23:59:59.000Z

285

ACM Reference Format Min, J., Chai, J. 2012. Motion Graphs++: a Compact Generative Model for Semantic Motion Analysis and  

E-Print Network [OSTI]

. Abstract This paper introduces a new generative statistical model that al- lows for human motion analysis statistical models for human motion synthesis and control remains challenging for a number of key reasons (about two hours mocap data and more than 15 differ- ent actions). We have demonstrated the power

Chai, Jinxiang

286

3D Periodic Human Motion Reconstruction from 2D Motion Sequences Zonghua Zhang and Nikolaus F. Troje  

E-Print Network [OSTI]

1 3D Periodic Human Motion Reconstruction from 2D Motion Sequences Zonghua Zhang and Nikolaus F@psyc.queensu.ca Abstract In this report, we present and evaluate a method of reconstructing three-dimensional (3D) periodic set of 3D data, we construct a linear, morphable representation. Using this representation a low

Troje, Nikolaus

287

PHYSICAL REVIEW B 86, 245427 (2012) Strong anisotropy in surface kinetic roughening: Analysis and experiments  

E-Print Network [OSTI]

PHYSICAL REVIEW B 86, 245427 (2012) Strong anisotropy in surface kinetic roughening: Analysis; published 26 December 2012) We report an experimental assessment of surface kinetic roughening properties systems whose kinetic roughening is strongly anisotropic, as consistently described by this scaling

Cuerno, Rodolfo

288

Kinetics of the 5-Hydroxymethylfurfural Formation Reaction in Chinese Rice Wine  

Science Journals Connector (OSTI)

Kinetics of the 5-Hydroxymethylfurfural Formation Reaction in Chinese Rice Wine ... The kinetics of 5-hydroxymethylfurfural (HMF) formation in Chinese rice wine was investigated under different treatment conditions. ... Chinese rice wine; 5-hydroxymethylfurfural (HMF); kinetics ...

Lei Chen; Huahong Huang; Wenbao Liu; Ning Peng; Xuesong Huang

2010-02-18T23:59:59.000Z

289

Using Multi-scale Dynamic Rupture Models to Improve Ground Motion Estimates  

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

Earthquake simulations help scientists understand the hazards posed by Earthquake simulations help scientists understand the hazards posed by future earthquakes. Earthquake computational models are validated by simulating well-recorded historical earthquakes and comparing simulation results to observational data. The purple border shows the extent of the 3-D structural model in the 3-D inversion. Events in red, with stations in blue. En-Jui Lee, University of Wyoming Using Multi-scale Dynamic Rupture Models to Improve Ground Motion Estimates PI Name: Thomas Jordan PI Email: tjordan@usc.edu Institution: USC Allocation Program: ESP Allocation Hours at ALCF: 150 Million Year: 2010 to 2013 Research Domain: Earth Science Researchers will use Southern California Earthquake Center (SCEC) dynamic rupture simulation software to investigate high-frequency seismic energy

291

PET Motion Compensation for Radiation Therapy Using a CT-Based Mid-Position Motion Model: Methodology and Clinical Evaluation  

SciTech Connect (OSTI)

Purpose: Four-dimensional positron emission tomography (4D PET) imaging of the thorax produces sharper images with reduced motion artifacts. Current radiation therapy planning systems, however, do not facilitate 4D plan optimization. When images are acquired in a 2-minute time slot, the signal-to-noise ratio of each 4D frame is low, compromising image quality. The purpose of this study was to implement and evaluate the construction of mid-position 3D PET scans, with motion compensated using a 4D computed tomography (CT)-derived motion model. Methods and Materials: All voxels of 4D PET were registered to the time-averaged position by using a motion model derived from the 4D CT frames. After the registration the scans were summed, resulting in a motion-compensated 3D mid-position PET scan. The method was tested with a phantom dataset as well as data from 27 lung cancer patients. Results: PET motion compensation using a CT-based motion model improved image quality of both phantoms and patients in terms of increased maximum SUV (SUV{sub max}) values and decreased apparent volumes. In homogenous phantom data, a strong relationship was found between the amplitude-to-diameter ratio and the effects of the method. In heterogeneous patient data, the effect correlated better with the motion amplitude. In case of large amplitudes, motion compensation may increase SUV{sub max} up to 25% and reduce the diameter of the 50% SUV{sub max} volume by 10%. Conclusions: 4D CT-based motion-compensated mid-position PET scans provide improved quantitative data in terms of uptake values and volumes at the time-averaged position, thereby facilitating more accurate radiation therapy treatment planning of pulmonary lesions.

Kruis, Matthijs F.; Kamer, Jeroen B. van de; Houweling, Antonetta C.; Sonke, Jan-Jakob; Belderbos, Jos S.A.; Herk, Marcel van, E-mail: m.v.herk@nki.nl

2013-10-01T23:59:59.000Z

292

Bio-mechanics and artificial organs, study of muscular motion.  

E-Print Network [OSTI]

and biochemistry. · Object Oriented modeling approaches for biological systems. · Mathematical modeling of Ecological Models Simulating Nitrogen Processes in Treatment Wetlands, Modeled in Modelica Stina Edelfeldt in immunology, neurophysiology, population dynamics and enzyme kinetics. · Mathematical models and simulation

Zhao, Yuxiao

293

Universal constants and equations of turbulent motion  

E-Print Network [OSTI]

In the spirit of Prandtl's conjecture of 1926, for turbulence at high Reynolds number we present an analogy with the kinetic theory of gases, with dipoles made of quasi-rigid and 'dressed' vortex tubes as frictionless, incompressible but deformable quasi-particles. Their movements are governed by Helmholtz' elementary vortex rules applied locally. A contact interaction or 'collision' leads either to random scatter of a trajectory or to the formation of two likewise rotating, fundamentally unstable whirls forming a dissipative patch slowly rotating around its center of mass which is almost at rest. This approach predicts von Karman's constant as 1/sqrt(2 pi) = 0.399 and the spatio-temporal dynamics of energy-containing time and length scales controlling turbulent mixing [Baumert 2009]. A link to turbulence spectra was missing so far. In the present paper it is shown that the above image of random vortex-dipole movements is compatible with Kolmogorov's turbulence spectra if dissipative patches, beginning as two likewise rotating eddies, evolve locally into a space-filling bearing in the sense of Herrmann [1990], i.e. into an "Apollonian gear". Its parts and pieces are incompressible and flexibly deformable vortex tubes which are frictionless, excepting the dissipative scale of size zero. For steady and locally homogeneous conditions our approach predicts the dimensionless pre-factor in the 3D Eulerian wavenumber spectrum as [(4 pi)^2/3]/3 = 1.8, and in the Lagrangian frequency spectrum as 2. Our derivations rest on geometry, methods from many-particle physics, and on elementary conservation laws.

Helmut Z. Baumert

2011-07-25T23:59:59.000Z

294

HIGH PRESSURE COAL COMBUSTON KINETICS PROJECT  

SciTech Connect (OSTI)

As part of the U.S. Department of Energy (DoE) initiative to improve the efficiency of coal-fired power plants and reduce the pollution generated by these facilities, DOE has funded the High-Pressure Coal Combustion Kinetics (HPCCK) Projects. A series of laboratory experiments were conducted on selected pulverized coals at elevated pressures with the specific goals to provide new data for pressurized coal combustion that will help extend to high pressure and validate models for burnout, pollutant formation, and generate samples of solid combustion products for analyses to fill crucial gaps in knowledge of char morphology and fly ash formation. Two series of high-pressure coal combustion experiments were performed using SRI's pressurized radiant coal flow reactor. The first series of tests characterized the near burner flame zone (NBFZ). Three coals were tested, two high volatile bituminous (Pittsburgh No.8 and Illinois No.6), and one sub-bituminous (Powder River Basin), at pressures of 1, 2, and 3 MPa (10, 20, and 30 atm). The second series of experiments, which covered high-pressure burnout (HPBO) conditions, utilized a range of substantially longer combustion residence times to produce char burnout levels from 50% to 100%. The same three coals were tested at 1, 2, and 3 MPa, as well as at 0.2 MPa. Tests were also conducted on Pittsburgh No.8 coal in CO2 entrainment gas at 0.2, 1, and 2 MPa to begin establishing a database of experiments relevant to carbon sequestration techniques. The HPBO test series included use of an impactor-type particle sampler to measure the particle size distribution of fly ash produced under complete burnout conditions. The collected data have been interpreted with the help of CFD and detailed kinetics simulation to extend and validate devolatilization, char combustion and pollutant model at elevated pressure. A global NOX production sub-model has been proposed. The submodel reproduces the performance of the detailed chemical reaction mechanism for the NBFZ tests.

Stefano Orsino

2005-03-30T23:59:59.000Z

295

Electromagnetic generator for harvesting energy from human motion  

Science Journals Connector (OSTI)

This paper presents an electromagnetic based generator which is suitable for supplying generating power from human body motion and has application in providing energy for body worn sensors or electronics devices. A prototype generator has been built and tested both by a shaker at resonance condition and also by human body motion during walking and slow running. The experimental results will show that the prototype could generate 300?W to 2.5mW power from human body motion. The measured results are analyzed and compared with the theoretical model.

C.R. Saha; T. ODonnell; N. Wang; P. McCloskey

2008-01-01T23:59:59.000Z

296

Symmetries of geodesic motion in Gdel-type spacetimes  

E-Print Network [OSTI]

In this paper, we study Noether gauge symmetries of geodesic motion for geodesic Lagrangian of four classes of metrics of G\\"{o}del-type spacetimes for which we calculated the Noether gauge symmetries for all classes I-IV, and find the first integrals of corresponding classes to derive a complete characterization of the geodesic motion. Using the obtained expressions for $\\dot{t}, \\dot{r}, \\dot{\\phi}$ and $\\dot{z}$ of each classes I-IV which depends essentially on two independent parameters $m$ and $w$, we explicitly integrated the geodesic equations of motion for the corresponding G\\"{o}del-type spacetimes.

U. Camci

2014-05-15T23:59:59.000Z

297

Quasar Proper Motions and Low-Frequency Gravitational Waves  

E-Print Network [OSTI]

We report observational upper limits on the mass-energy of the cosmological gravitational-wave background, from limits on proper motions of quasars. Gravitational waves with periods longer than the time span of observations produce a simple pattern of apparent proper motions over the sky, composed primarily of second-order transverse vector spherical harmonics. A fit of such harmonics to measured motions yields a 95%-confidence limit on the mass-energy of gravitational waves with frequencies <2e-9 Hz, of <0.11/h*h times the closure density of the universe.

Carl R. Gwinn; T. Marshall Eubanks; Ted Pyne; Mark Birkinshaw; Demetrios N. Matsakis

1996-10-12T23:59:59.000Z

298

Faster than light motion does not imply time travel  

E-Print Network [OSTI]

Seeing the many examples in the literature of causality violations based on faster-than- light (FTL) signals one naturally thinks that FTL motion leads inevitably to the possibility of time travel. We show that this logical inference is invalid by demonstrating a model, based on (3+1)-dimensional Minkowski spacetime, in which FTL motion is permitted (in every direction without any limitation on speed) yet which does not admit time travel. Moreover, the Principle of Relativity is true in this model in the sense that all observers are equivalent. In short, FTL motion does not imply time travel after all.

H. Andrka; J. X. Madarsz; I. Nmeti; M. Stannett; G. Szkely

2014-07-09T23:59:59.000Z

299

Faster than light motion does not imply time travel  

E-Print Network [OSTI]

Seeing the many examples in the literature of causality violations based on faster-than- light (FTL) signals one naturally thinks that FTL motion leads inevitably to the possibility of time travel. We show that this logical inference is invalid by demonstrating a model, based on (3+1)-dimensional Minkowski spacetime, in which FTL motion is permitted (in every direction without any limitation on speed) yet which does not admit time travel. Moreover, the Principle of Relativity is true in this model in the sense that all observers are equivalent. In short, FTL motion does not imply time travel after all.

Andrka, H; Nmeti, I; Stannett, M; Szkely, G

2014-01-01T23:59:59.000Z

300

Energy conversion of orbital motions in gravitational waves: Simulation and test of the Seaspoon wave energy converter  

Science Journals Connector (OSTI)

Abstract The conversion of ocean wave power into sustainable electrical power represents a major opportunity to Nations endowed with such a kind of resource. At the present time the most of the technological innovations aiming at converting such resources are at early stage of development, with only a handful of devices close to be at the commercial demonstration stage. The Seaspoon device, thought as a large energy harvester, catches the kinetic energy of ocean waves with promising conversion efficiency, and robust technology, according to specific wave-motion climate. University of Genoa aims to develop a prototype to be deployed in medium average energy content seas (i.e. Mediterranean or Eastern Asia seas). This paper presents the first simulation and experimental results carried out on a reduced scale proof-of-concept model tested in the laboratory wave flume.

L. Di Fresco; A. Traverso

2014-01-01T23:59:59.000Z

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


301

Corrections to kinetic measurements taken on a disk electrode  

SciTech Connect (OSTI)

Below the limiting current, the rotating disk electrode has a nonuniform current distribution. When the nonuniformities are not explicitly accounted for, errors in values of kinetic parameters determined through measurements on a disk can result. In this analysis, valid for Tafel kinetics, correction factors are obtained as a function of the dimensionless average current density.It is assumed that ohmic corrections are made by the interruption of current. The results indicate that, under certain conditions, the errors are negligible and that the disk geometry, despite its nonuniformities, is adequate for the investigation of systems characterized by Tafel kinetics.

West, A.C.; Newman, J.

1989-01-01T23:59:59.000Z

302

Inbound waves in the solar corona: a direct indicator of Alfv\\'en Surface location  

E-Print Network [OSTI]

The tenuous supersonic solar wind that streams from the top of the corona passes through a natural boundary -- the Alfv\\'en surface -- that marks the causal disconnection of individual packets of plasma and magnetic flux from the Sun itself. The Alfv\\'en surface is the locus where the radial motion of the accelerating solar wind passes the radial Alfv\\'en speed, and therefore any displacement of material cannot carry information back down into the corona. It is thus the natural outer boundary of the solar corona, and the inner boundary of interplanetary space. Using a new and unique motion analysis to separate inbound and outbound motions in synoptic visible-light image sequences from the COR2 coronagraph on board the STEREO-A spacecraft, we have identified inbound wave motion in the outer corona beyond 6 solar radii for the first time, and used it to determine that the Alfv\\'en surface is at least 12.5 solar radii from the Sun over the polar coronal holes and 17 solar radii in the streamer belt, well beyond ...

DeForest, C E; McComas, D J

2014-01-01T23:59:59.000Z

303

Kinetic modelling of krypton fluoride laser systems  

SciTech Connect (OSTI)

A kinetic model has been developed for the KrF* rare gas halide laser system, specifically for electron-beam pumped mixtures of krypton, fluorine, and either helium or argon. The excitation produced in the laser gas by the e-beam was calculated numerically using an algorithm checked by comparing the predicted ionization yields in the pure rare gases with their experimental values. The excitation of the laser media by multi-kilovolt x-rays was also modeled and shown to be similar to that produced by high energy electrons. A system of equations describing the transfer of the initial gas excitation into the laser upper level was assembled using reaction rate constants from both experiment and theory. A one-dimensional treatment of the interaction of the laser radiation with the gas was formulated which considered spontaneous and stimulated emission and absorption. The predictions of this model were in good agreement with the fluorescence signals and gain and absorption measured experimentally.

Jancaitis, K.S.

1983-11-01T23:59:59.000Z

304

Kinetics of methanation on nickel catalysts  

SciTech Connect (OSTI)

Extensive steady-state and transient measurements of the disproportionation of carbon monoxide, the hydrogenation of deposited carbon, and methanation of carbon monoxide were performed over 2 and 10% nickel on silica support. The results indicated that the methanation of carbon monoxide involves competitively adsorbed species; that the reaction is nearly zero order in carbon monoxide at 0.1-0.5 atm CO and 1 atm H/sub 2/, but negative at higher CO partial pressures and that it becomes less negative with increasing temperature or increasing hydrogen pressure; and that the reaction order with respect to hydrogen changes from 0.5 to 1.0 with increasing CO pressure and decreasing H/sub 2/ pressure. A reaction mechanism is proposed which consists of the molecular adsorption of CO, the dissociative adsorption of H/sub 2/, dissociation of the surface CO species, and reaction of two adsorbed hydrogen atoms with the oxygen; and a multistep hydrogenation and desorption process for the adsorbed carbon. The dissociation and reaction of adsorbed CO is probably the rate-limiting step. The kinetic behavior is best represented with the assumption of a heterogeneous catalyst surface, containing three types of sites of widely varying activity.

Ho, S.V.; Harriott, P.

1980-08-01T23:59:59.000Z

305

Femtosecond kinetics of photoexcited carriers in germanium  

Science Journals Connector (OSTI)

Thermalization, intervalley scattering, and cooling of photoexcited carriers are observed in the indirect-band-gap semiconductor Ge through time-resolved direct-band-gap transmission and luminescence with 100-fs resolution. The transmission experiment, which uses ?=1.53 ?m, 120-fs pulses from a 76-MHz optical parametric oscillator takes advantage of the indirect-band-gap character of Ge to unambiguously determine the ??L intervalley scattering time at 295 K. The measured ??L transfer time for electrons at the ? valley edge is 23025 fs yielding 4.20.2108 eV/cm for the D?-L intervalley deformation potential. The luminescence experiments were performed at 10 K using a standard time and spectrally gated up-conversion technique employing an 82-MHz, 80-fs pulse width Ti:sapphire laser operating at ?=750 nm. From the luminescence experiments conducted with peak carrier densities of 10181019 cm-3, we observe that ??L,X scattering competes with carrier-carrier scattering so that nonthermalized carriers are observed for up to several hundred femtoseconds after an excitation pulse. Because the initial carrier kinetic energy is quite high we find that in addition to phonon-assisted L-L intervalley scattering, X-L and X-X processes must be included to account for a carrier-cooling time. A value of 5108 eV/cm is obtained for the DX-X deformation potential.

X. Q. Zhou; H. M. van Driel; G. Mak

1994-08-15T23:59:59.000Z

306

Quantum kinetic theory with nonlocal coherence  

E-Print Network [OSTI]

In this thesis we develop a novel approximation scheme (eQPA), where the effects of nonlocal coherence are included in the kinetic approach to nonequilibrium quantum dynamics. The key element in our formalism is the finding of new singular shell solutions, located at $k_{0,z} = 0$ in the phase space of 2-point Wightman function, which describe the nonlocal quantum coherence between the ``opposite'' mass-shell excitations for spatially homogeneous and static planar symmetric problems, respectively. This phase space structure leads to a closed set of transport equations for the corresponding on-shell distribution functions $f$, providing an extension to the standard quantum Boltzmann equation. We have considered a number of applications to demonstrate the use of our formalism, including the Klein problem, quantum reflection from a CP-violating mass wall and coherent production of (fermionic and scalar) particles in an oscillating background. Our formalism should be of relevance for many problems in particle physics and cosmology, including baryogenesis and neutrino flavour oscillations in an inhomogeneous background.

Matti Herranen

2009-06-17T23:59:59.000Z

307

Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines...  

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

Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines 2003 DEER Conference Presentation: AVL Powertrain...

308

Department of Energy Files Motion to Withdraw Yucca Mountain License  

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

Files Motion to Withdraw Yucca Mountain Files Motion to Withdraw Yucca Mountain License Application Department of Energy Files Motion to Withdraw Yucca Mountain License Application March 3, 2010 - 12:00am Addthis WASHINGTON, D.C. - The U.S. Department of Energy today filed a motion with the Nuclear Regulatory Commission to withdraw the license application for a high-level nuclear waste repository at Yucca Mountain with prejudice. "President Obama is fully committed to ensuring that the Nation meets our long-term storage obligations for nuclear waste," said Department of Energy General Counsel Scott Blake Harris. "In light of the decision not to proceed with the Yucca Mountain nuclear waste repository, the President directed Secretary Chu to establish the Blue Ribbon Commission on America's

309

DOE Defends Its Motion to Withdraw Yucca Mountain Application | Department  

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

Defends Its Motion to Withdraw Yucca Mountain Application Defends Its Motion to Withdraw Yucca Mountain Application DOE Defends Its Motion to Withdraw Yucca Mountain Application May 27, 2010 - 2:22pm Addthis Today, the United States Department of Energy filed with the NRC's Atomic Safety and Licensing Board a reply brief making clear that its motion to withdraw the pending application to license the Yucca Mountain geologic repository is authorized by the Atomic Energy Act (AEA) and consistent with the Nuclear Waste Policy Act (NWPA). As today's filing details, the AEA vests the Department with broad authority over the disposal of spent nuclear fuel and high-level radioactive waste. The NWPA does not strip the Department of that authority or otherwise compel the Department to go forward with the construction of the Yucca Mountain repository. Rather, the

310

Wind for Schools Portal Motion Chart | Open Energy Information  

Open Energy Info (EERE)

Wind for Schools Portal Home Comparison Motion Chart Educational Resources Tip : This page requires Flash. If you don't see the graph above, please access this analytical feature...

311

On the Separation of the Spectral Components of Polar Motion  

Science Journals Connector (OSTI)

......Polar Motion Frederick J. Wells Michael A. Chinnery Marathon Oil Company, Denver Research Center, Littleton, Colorado...partly supported by NSF Grant GA 18870. F. J. Wells: Marathon Oil Company, Brown University, M. A. Chinnery: Denver......

Frederick J. Wells; Michael A. Chinnery

1973-11-01T23:59:59.000Z

312

Analyzing and Capturing Articulated Hand Motion in Image Sequences  

E-Print Network [OSTI]

to the estimation of the occluded parts. Fortunately, the natural human motion is often highly constrained with the finger articulation, this paper proposes a powerful sequential Monte Carlo tracking algorithm based

Wu, Ying

313

Factored Conditional Restricted Boltzmann Machines for Modeling Motion Style  

E-Print Network [OSTI]

). The result is an efficient, com- pact model whose effectiveness we demonstrate by modeling human motion. Like effective biases. The model would be much more powerful if the equilibrium sample at the higher level could

Roweis, Sam

314

Independent perceptual learning in monocular and binocular motion systems  

Science Journals Connector (OSTI)

...appears to be inconsistent with the functional architecture of human motion perception. Based on different temporal modulation transfer...linear regressions of the learning curves, consistent with power-law learning (3335). Fig. 2. Results. (a...

Zhong-Lin Lu; Wilson Chu; Barbara Anne Dosher; Sophia Lee

2005-01-01T23:59:59.000Z

315

Marker-less Human Motion Estimation using Articulated Deformable Model  

E-Print Network [OSTI]

Marker-less Human Motion Estimation using Articulated Deformable Model Koichi Ogawara and Xiaolu Li and backtrack re-estimation algorithm enable accurate estimation. The power to track challenging whole body

Tokyo, University of

316

Filtering Number States of the Vibrational Motion of an Ion  

E-Print Network [OSTI]

We propose a scheme to generate number states (and specific superpositions of them) of the vibrational motion of a trapped ion. In particular, we show that robust to noise qubits can be generated with arbitrary amplitudes.

Moya-Cessa, H

2000-01-01T23:59:59.000Z

317

Wave-induced motion of ramp-interconnected craft  

E-Print Network [OSTI]

in Figure 4.3 (the system experiences yaw as one rigid bodyamount of yaw experienced by the total system (but notthe impact the yaw motions have on the system, Graph 4.26 is

Oonk, Stephen Holt

2008-01-01T23:59:59.000Z

318

Sound-induced micromechanical motions in an isolated cochlea preparation  

E-Print Network [OSTI]

The mechanical processes at work within the organ of Corti can be greatly elucidated by measuring both radial motions and traveling-wave behavior of structures within this organ in response to sound stimuli. To enable such ...

Page, Scott Lawrence

2006-01-01T23:59:59.000Z

319

Animating Non-Rigid Bodies Using Motion Capture.  

E-Print Network [OSTI]

??Simulating the motion of a non-rigid body under external forces is a difficult problem because of the complexity and flexibility of the non-rigid geometry and (more)

Long, Jie

2013-01-01T23:59:59.000Z

320

Potomac Electric Power Company's Motion for Leave to Answer and...  

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

for Leave to Answer and Answer to Comments and Protests Potomac Electric Power Company's Motion for Leave to Answer and Answer to Comments and Protests Docket No. EO-05-01:...

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


321

Calibration of NASA Turbulent Air Motion Measurement System  

Science Journals Connector (OSTI)

A turbulent air motion measurement system (TAMMS) was integrated onboard the Lockheed 188 Electra airplane (designated NASA 429) based at the Wallops Flight Facility in support of the NASA role in global tropospheric research. The system provides air ...

Barrick John D. W.; Ritter John A.; Watson Catherine E.; Wynkoop Mark W.; Quinn John K.

1996-12-01T23:59:59.000Z

322

Motion of Robert G. Burnley, Director the Commonwealth of Virginia...  

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

of Columbia Public Service Commission Answer of Potomac Electric Power Company and PJM lnterconnection, L.L.C. to the October 6, 2005 motion filed by the Virginia Department...

323

Effect of Fluctuation of Wind on Ship Motions  

Science Journals Connector (OSTI)

This paper describes the effect of fluctuation of wind on ship motions examined by means of the numerical simulation method. Ship sizes 258,000 dwt and 237,000 dwt oil tankers. Ships are moored to fixed deep wate...

S. Ueda

1988-01-01T23:59:59.000Z

324

THE EFFECT OF WATER MOTION ON ALGAL SPORE ADHESION  

Science Journals Connector (OSTI)

Nov 2, 1972 ... The effects of water motion on the attachment of algal germ cells to ... This study is concerned with the effect ...... Studies on the ship-fouling.

1999-12-31T23:59:59.000Z

325

Impacts of a popular motion picture on destination images  

E-Print Network [OSTI]

The influence of popular motion pictures upon the formation of destination perceptions has received some attention in the tourism literature. Previous empirical studies have examined the effects of movies on visitation to places they depict...

Kim, Hyounggon

2012-06-07T23:59:59.000Z

326

Wave motions in unbounded poroelastic solids infused with compressible fluids  

E-Print Network [OSTI]

Wave motions in unbounded poroelastic solids infused with compressible fluids S. Quiligotti, G at proposing a two-scale constitutive theory of a poroelastic solid infused with an inviscid compressible fluid

327

Rotational motion in plastic quinuclidine : Results from quasielastic neutron scattering  

E-Print Network [OSTI]

563 Rotational motion in plastic quinuclidine : Results from quasielastic neutron scattering C. 2014 Results of incoherent quasielastic neutron scattering experiments on quinuclidine, C7Hl3N, in its

Boyer, Edmond

328

Integrated Robot Task and Motion Planning in the Now  

E-Print Network [OSTI]

This paper provides an approach to integrating geometric motion planning with logical task planning for long-horizon tasks in domains with many objects. We propose a tight integration between the logical and geometric ...

Kaelbling, Leslie Pack

2012-06-29T23:59:59.000Z

329

Intuitive Generation of Realistic Motions for Articulated Human Characters  

E-Print Network [OSTI]

articulations, for human characters. More specifically, the goals of this research are: (1) to investigate generative statistical models and physics-based dynamic models to precisely predict how humans move and (2) to demonstrate the utility of our motion...

Min, Jianyuan

2013-01-15T23:59:59.000Z

330

Hierarchical Task and Motion Planning in the Now  

E-Print Network [OSTI]

In this paper we outline an approach to the integration of task planning and motion planning that has the following key properties: It is aggressively hierarchical. It makes choices and commits to them in a top-down fashion ...

Kaelbling, Leslie Pack

2010-05-07T23:59:59.000Z

331

COLLOQUIUM: The Alfvnic Motions of the Sun's Outer Atmosphere...  

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

8, 2013, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: The Alfvnic Motions of the Sun's Outer Atmosphere Scott McIntosh National Center for Atmospheric Research (NCAR)...

332

Optimal shape and motion of undulatory swimming organisms  

E-Print Network [OSTI]

Undulatory swimming animals exhibit diverse ranges of body shapes and motion patterns and are often considered as having superior locomotory performance. The extent to which morphological traits of swimming animals have ...

Tokic, Grgur

333

Design of Vibration Absorbers for Step Motions and Step Disturbances  

E-Print Network [OSTI]

Design of Vibration Absorbers for Step Motions and Step Disturbances Joel Fortgang William Singhose or from external disturbances. The technique of adding a vibration ab- sorber has proven useful at eliminating vibrations from external disturbances and rotational imbalances. Traditionally, vibration

Singhose, William

334

DOE Defends Its Motion to Withdraw Yucca Mountain Application | Department  

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

Its Motion to Withdraw Yucca Mountain Application Its Motion to Withdraw Yucca Mountain Application DOE Defends Its Motion to Withdraw Yucca Mountain Application May 27, 2010 - 2:22pm Addthis Today, the United States Department of Energy filed with the NRC's Atomic Safety and Licensing Board a reply brief making clear that its motion to withdraw the pending application to license the Yucca Mountain geologic repository is authorized by the Atomic Energy Act (AEA) and consistent with the Nuclear Waste Policy Act (NWPA). As today's filing details, the AEA vests the Department with broad authority over the disposal of spent nuclear fuel and high-level radioactive waste. The NWPA does not strip the Department of that authority or otherwise compel the Department to go forward with the construction of the Yucca Mountain repository. Rather, the

335

INFRARED ABSORPTION SPECTROSCOPY AND CHEMICAL KINETICS OF FREE RADICALS  

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

mNAL PERFORMANCE REPORT mNAL PERFORMANCE REPORT for INFRARED ABSORPTION SPECTROSCOPY AND CHEMICAL KINETICS OF FREE RADICALS DE-FG05-85ER13439 1-AUG-1985 to 31-JUL-1994 Robert F. Curl and Graham P. Glass Principal Investigators Introduction This research was directed at the detection, monitoring, and study (by infrared absorption spectroscopy) of the chemical kinetic behavior of small free radical species thought to be important intermediates in combustion. The work typically progressed from the detection and analysis of the infrared spectrum of combustion radical to the utilization of the infrared spectrum thus obtained in the investigation of chemical kinetics of the radical species. The methodology employed was infrared kinetic spectroscopy. In this technique the radical is produced by UV flash photolysis using an excimer laser and then

336

An Improved Equilibrium-Kinetics Speciation Algorithm For Redox Reactions  

Open Energy Info (EERE)

Improved Equilibrium-Kinetics Speciation Algorithm For Redox Reactions Improved Equilibrium-Kinetics Speciation Algorithm For Redox Reactions In Variably Saturated Subsurface Flow Systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Improved Equilibrium-Kinetics Speciation Algorithm For Redox Reactions In Variably Saturated Subsurface Flow Systems Details Activities (0) Areas (0) Regions (0) Abstract: Reactive chemical transport occurs in a variety of geochemical environments, and over a broad range of space and time scales. Efficiency of the chemical speciation and water-rock-gas interaction calculations is important for modeling field-scale multidimensional reactive transport problems. An improved efficient model, REACT, for simulating water-rock-gas interaction under equilibrium and kinetic conditions, has been developed.

337

Mechanistic kinetic modeling of the hydrocracking of complex feedstocks  

E-Print Network [OSTI]

subclasses by distinguishing the isomers of a class according to the number of methyl branches. The kinetic model is plugged into an adiabatic multi-bed trickle flow reactor model. The model contains 33 feedstock and temperature independent parameters which...

Kumar, Hans

2009-05-15T23:59:59.000Z

338

Modeling Hydrolysis and Esterification Kinetics for Biofuel Processes  

Science Journals Connector (OSTI)

We determined the kinetics for ethyl oleate hydrolysis in high-temperature water and for the reverse reaction, oleic acid esterification, in near- and supercritical ethanol. Hydrolysis was clearly autocatalytic. The experimental data, from reactions at ...

Shujauddin Changi; Tanawan Pinnarat; Phillip E. Savage

2011-02-15T23:59:59.000Z

339

Long-term Kinetics of Uranyl Desorption from Sediments Under...  

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

results were used to evaluate alternative multi-rate surface complexation reaction (SCR) approaches to describe the short- and long-term kinetics of U(VI) desorption under...

340

Topobo : a gestural design tool with kinetic memory  

E-Print Network [OSTI]

The modeling of kinetic systems, both in physical materials and virtual simulations, provides a methodology to better understand and explore the forces and dynamics of our physical environment. The need to experiment, ...

Parkes, Amanda Jane

2004-01-01T23:59:59.000Z

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


341

Kinetic Roughening with Algebraically Distributed Noise Amplitudes or Waiting Times  

Science Journals Connector (OSTI)

In this paper we report on numerical simulation results on Zhangs prediction1...about the relevance of the distribution of noise amplitudes ?in kinetic surface roughening2. For power law distributions P(?) ? ?-(...

Jnos Kertsz

1993-01-01T23:59:59.000Z

342

Kinetic roughening-like transition with finite nucleation barrier  

E-Print Network [OSTI]

Recent observations of the growth of protein crystals have identified two different growth regimes. At low supersaturation, the surface of the crystal is smooth and increasing in size due to the nucleation of steps at defects and the subsequent growth of the steps. At high supersaturation, nucleation occurs at many places simultaneously, the crystal surface becomes rough and the growth velocity increases more rapidly with increasing supersaturation than in the smooth regime. Kinetic roughening transitions are typically assumed to be due to the vanishing of the barrier for two-dimension nucleation on the surface of the crystal. We show here, by means of both analytic mean field models and kinetic Monte Carlo simulations that a transition between different growth modes reminiscent of kinetic roughening can also arise as a kinetic effect occurring at finite nucleation barriers.

James F. Lutsko; Vasileios Basios; Gregoire Nicolis; John J. Kozak; Mike Sleutel; Dominique Maes

2010-01-07T23:59:59.000Z

343

Thermoanalysis and reaction kinetics of heavy oil combustion  

Science Journals Connector (OSTI)

The present study deals with fingerprinting the oxidation behavior of a Brazilian crude (12 API) oil. It focuses on the determination of reaction kinetic parameters through classical thermal analysis techniques ...

Anderson N. Pereira; Osvair V. Trevisan

2014-02-01T23:59:59.000Z

344

Multistep pyrolysis kinetics of North Korean oil shale  

Science Journals Connector (OSTI)

In this paper, multistep pyrolysis kinetics of North Korean oil shale was investigated by thermogravimetric analysis. All the...?1...from room temperature to 873K under nitrogen atmosphere. The main oil-producin...

Wei Wang; Shuyuan Li; Changtao Yue; Yue Ma

2014-10-01T23:59:59.000Z

345

BE.420J Biomolecular Kinetics and Cellular Dynamics, Fall 2004  

E-Print Network [OSTI]

This subject deals primarily with kinetic and equilibrium mathematical models of biomolecular interactions, as well as the application of these quantitative analyses to biological problems across a wide range of levels of ...

Wittrup, K. Dane

346

Nonphotochemical hole burning and dispersive kinetics in amorphous solids.  

E-Print Network [OSTI]

??Results of an extensive study, covering burn intensities in the nW to {dollar}?{dollar}W/cm{dollar}2{dollar} range, of dispersive hole growth kinetics are reported for Oxazine 720 in (more)

Kenney, Michael Joseph

1990-01-01T23:59:59.000Z

347

Catalytic deactivation on methane steam reforming catalysts. 2. Kinetic study  

SciTech Connect (OSTI)

The kinetics of methane steam reforming reaction over an alumina-supported nickel catalyst was investigated at a temperature range of 640-740/sup 0/C in a flow reactor at atmospheric pressure. The experiments were performed varying the inlet concentration of methane, hydrogen, and water. A kinetic scheme of the Houghen-Watson type was satisfactorily proposed assuming the dissociative adsorption of CH/sub 4/ as the rate-limiting step, but this kinetic scheme can be easily replaced by a first-order kinetics (r/sub CH/4/sub / = kapparho/sub CH/4/sub /) for engineering purposes. Catalyst activation with H/sub 2/ and N/sub 2/ mixtures or with the reactant mixture results in the same extent of reaction.

Agnelli, M.E.; Ponzi, E.N.; Yeramian, A.A.

1987-08-01T23:59:59.000Z

348

Kinetic energy error in the NIMROD spheromak simulations Carl Sovinec  

E-Print Network [OSTI]

Kinetic energy error in the NIMROD spheromak simulations Carl Sovinec 10/25/00 Dmitri Ryutov at the ends (as in the spheromak simulations), it may lead to compression in a boundary layer.] The maximum

Sovinec, Carl

349

Application of Ice Nucleation Kinetics in Orographic Clouds  

Science Journals Connector (OSTI)

Ice nucleation by silver iodide-sodium iodide aerosol particles has been characterized in the Colorado State University isothermal cloud chamber using the techniques of chemical kinetics. Two separate mechanisms of condensation-freezing ice ...

Rochelle R. Blumenstein; Robert M. Rauber; Lewis O. Grant; William G. Finnegan

1987-10-01T23:59:59.000Z

350

A Study and Comparison of SCR Reaction Kinetics from Reactor...  

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

Data A Study and Comparison of SCR Reaction Kinetics from Reactor and Engine Experimental Data Presents experimental study of a Cu-zeolite SCR in both reactor and engine test cell,...

351

Kinetic studies of isoprene reactions with hydroxyl and chlorine radicals  

E-Print Network [OSTI]

Kinetic studies of the isoprene oxidation reactions initiated by the hydroxyl radical OH and the chlorine atom Cl have been investigated using a fast-flow reactor in conjunction with chemical ionization mass spectrometry (CIMS) and using laser...

Suh, Inseon

2012-06-07T23:59:59.000Z

352

Observable fast kinetic eigenmode in binary noble-gas mixtures  

SciTech Connect (OSTI)

It is suggested that a fast kinetic mode should be observable in a whole class of disparate mass fluid mixtures, such as gaseous He-Xe, by neutron scattering experiments, at not too high densities and Xe concentrations.

Campa, A.; Cohen, E.G.D.

1988-08-15T23:59:59.000Z

353

Fully kinetic modeling of a divergent cusped-field thruster  

E-Print Network [OSTI]

A fully kinetic, particle-in-cell plasma simulation tool has been incrementally developed by members of the Massachusetts Institute of Technology Space Propulsion Laboratory. Adapting this model to simulate the performance ...

Gildea, Stephen Robert

2009-01-01T23:59:59.000Z

354

Nonlinear Adaptive Control for Bioreactors with Unknown Kinetics  

E-Print Network [OSTI]

on a real life wastewater treatment plant. Key words: Nonlinear adaptive control, continuous bioprocesses, unknown kinetics, wastewater treatment. 1 Introduction Biological processes have become widely used a pollutant (wastewater treatment...). There- fore, bioreactors require advanced regulation procedures

Bernard, Olivier

355

Turbulent kinetic energy balance as a tool for estimating vertical ...  

Science Journals Connector (OSTI)

Based on microstructure measurements in a simply shaped lake basin, the sources of ... Comparison with turbulent kinetic energy balances, performed in five other lakes, ...... pation (PB) is everywhere the same per unit area of sediment

1910-00-90T23:59:59.000Z

356

Kinetic and Performance Studies of the Regeneration Phase of...  

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

Studies of the Regeneration Phase of Model PtRhBa NOx Traps for Design and Optimization Kinetic and Performance Studies of the Regeneration Phase of Model PtRhBa NOx...

357

Activation of the Sulfhydryl Group by Mo Centers: Kinetics of...  

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

Mo(mu-SH)Mo Complex Abstract: This paper provides evidence from kinetic experiments and electronic structure calculations of a significantly reduced S-H bond strength in the...

358

Explicit Integration with GPU Acceleration for Large Kinetic Networks  

E-Print Network [OSTI]

We demonstrate the first implementation of recently-developed fast explicit kinetic integration algorithms on modern graphics processing unit (GPU) accelerators. Taking as a generic test case a Type Ia supernova explosion with an extremely stiff thermonuclear network having 150 isotopic species and 1604 reactions coupled to hydrodynamics using operator splitting, we demonstrate the capability to solve of order 100 realistic kinetic networks in parallel in the same time that standard implicit methods can solve a single such network on a CPU. This orders-of-magnitude decrease in compute time for solving systems of realistic kinetic networks implies that important coupled, multiphysics problems in various scientific and technical fields that were intractible, or could be simulated only with highly schematic kinetic networks, are now computationally feasible.

Brock, Benjamin; Billings, Jay Jay; Guidry, Mike

2014-01-01T23:59:59.000Z

359

Intercalation Kinetics and Ion Mobility in Electrode Materials...  

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

es093daniel2011o.pdf More Documents & Publications Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro-machined Electrodes In-Situ Electron Microscopy of Electrical...

360

Motion dazzle and camouflage as distinct anti-predator defenses  

E-Print Network [OSTI]

work indicates that human motion detection may work most effectively at short displacements. Therefore, it is possible that smal- ler displacements (produced by faster screen refresh rates) would result in greater motion-dazzle effects than those... showed that there was a significant effect of treatment (that is, of prey type: F(5, 359) = 10.53, P powerful than using a series of unplanned post...

Stevens, Martin; Searle, William TL; Seymour, Jenny E; Marshall, Kate LA; Ruxton, Graeme D

2011-11-25T23:59:59.000Z

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


361

An integrator based on motion and electrostatic charge  

E-Print Network [OSTI]

L18RARY A 4 M COLLEGE OF TEXAS AN INTEORATOR BASED ON MOTION AND ELECTROSTATIC CHARGE A Thesis MOSTAFA CHAMRAN-SAVEHI Subnitted to the Oraduate School of the Agricultural and Meohanical College of Texas in partial fuliillnent... of the requirenents for the degree of MASTER OF SCIENCE January 1959 Ma)or Subject 1 Electrical Engineering AN INTEGRATOR BASED ON MOTION AND ELECTROSTATIC CHARGE A Thesis MOSTAFA CHAMRAN-SAVEHI Approved as to styl ~ and content by: Chairnan of Connittee...

Chamran-Savehi, Mostafa

2012-06-07T23:59:59.000Z

362

Scour around a circular pile due to oscillatory wave motion  

E-Print Network [OSTI]

SCOUR AROUND A CIRCULAR PILE DUE TO OSCILLATORY WAVE MOTION A Thesis by DONALD RAYMOND WELLS Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE January... 1970 Major Subject: Civil Engineering SCOUR AROUND A CIRCULAR PILE DUE TO OSCILLATORY WAVE MOTION A Thesis by DONALD RAYMOND WELLS Approved as to style and content by: hairman of Committee) (Head of Department) ember) . (Member) (Member...

Wells, Donald Raymond

2012-06-07T23:59:59.000Z

363

Small mass asymptotic for the motion with vanishing friction  

E-Print Network [OSTI]

We consider the small mass asymptotic (Smoluchowski-Kramers approximation) for the Langevin equation with a variable friction coefficient. The friction coefficient is assumed to be vanishing within certain region. We introduce a regularization for this problem and study the limiting motion for the 1-dimensional case and a multidimensional model problem. The limiting motion is a Markov process on a projected space. We specify the generator and boundary condition of this limiting Markov process and prove the convergence.

Mark Freidlin; Wenqing Hu; Alexander Wentzell

2012-01-05T23:59:59.000Z

364

Roles of Dry Friction in Fluctuating Motion of Adiabatic Piston  

E-Print Network [OSTI]

The motion of an adiabatic piston under dry friction is investigated to clarify the roles of dry friction in non-equilibrium steady states. We clarify that dry friction can reverse the direction of the piston motion and causes a discontinuity or a cusp-like singularity for velocity distribution functions of the piston. We also show that the heat fluctuation relation is modified under dry friction.

Tomohiko G. Sano; Hisao Hayakawa

2014-03-08T23:59:59.000Z

365

Motion planning algorithms for a group of mobile agents  

E-Print Network [OSTI]

sampling, like the probabilis- tic roadmap (PRM) planners [46, 47] have gained popularity due to their eciency 5 and simplicity. Centralized methods using PRM have been developed for solving the motion planning problem for multiple agents [48, 49...]. The no- tion of coordination diagram was used in [57] and later analyzed for manipulators in [60, 61]. On similar lines roadmap coordination [62, 63] was used to plan the motion of multiple robots. The problem with decoupled approaches is that despite...

Lal, Mayank

2008-10-10T23:59:59.000Z

366

Energy landscapes, folding mechanisms and kinetics of RNA tetraloop hairpins  

Science Journals Connector (OSTI)

Energy landscapes, folding mechanisms and kinetics of RNA tetraloop hairpins ... In this work, we use the discrete path sampling (DPS) approach to explore the energy landscapes of two RNA tetraloop hairpins, and provide insights into their folding mechanisms and kinetics in atomistic detail. ... Our results show that the potential energy landscapes have a distinct funnel-like bias towards the folded hairpin state, consistent with efficient structure-seeking properties. ...

Debayan Chakraborty; Rosana Collepardo-Guevara; David J. Wales

2014-12-02T23:59:59.000Z

367

Kinetic Isotope Effects in Cycloreversion of Rhenium (V) Diolates  

Science Journals Connector (OSTI)

The isotope effects were all calculated from these ratios according to the equation25 (F = extent of reaction; R = isotopic ratio vs reference at extent of reaction F; R0 = initial isotopic ratio vs reference). ... The magnitudes of small kinetic isotope effects (KIEs) are amplified in the isotopic compn. of starting materials recovered from reactions taken to high conversions. ... The magnitudes of small kinetic isotope effects (KIEs) are amplified in the isotopic compn. of starting materials recovered from reactions taken to high conversions. ...

Kevin P. Gable; Fedor A. Zhuravlev

2002-03-21T23:59:59.000Z

368

Kinetic parameter estimation using nonisothermal trickle-bed reactor data  

E-Print Network [OSTI]

KINETIC PARAMETER ESTIMATION USING NONISOTHERMAL TRICKLE-BED REACTOR DATA A Thesis by MICHAEL ALLEN MENSIK Submitted to the Graduate College of Texas ALM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1985 Major Subject: Chemical Engineering KINETIC PARAMETER ESTIMATION USING NONISOTHERMAL TRICKLE-BED REACTOR DATA A Thesis by MICHAEL ALLEN MENSIK Approved as to style and content by: A. ger n (Chairman of Comm ee) R. G. Antho...

Mensik, Michael Allen

2012-06-07T23:59:59.000Z

369

Chaotic motion of charged particles in toroidal magnetic configurations  

E-Print Network [OSTI]

We study the motion of a charged particle in a tokamak magnetic field and discuss its chaotic nature. Contrary to most of recent studies, we do not make any assumption on any constant of the motion and solve numerically the cyclotron gyration using Hamiltonian formalism. We take advantage of a symplectic integrator allowing us to make long-time simulations. First considering an idealized magnetic configuration, we add a non generic perturbation corresponding to a magnetic ripple, breaking one of the invariant of the motion. Chaotic motion is then observed and opens questions about the link between chaos of magnetic field lines and chaos of particle trajectories. Second, we return to a axi-symmetric configuration and tune the safety factor (magnetic configuration) in order to recover chaotic motion. In this last setting with two constants of the motion, the presence of chaos implies that no third global constant exists, we highlight this fact by looking at variations of the first order of the magnetic moment in this chaotic setting. We are facing a mixed phase space with both regular and chaotic regions and point out the difficulties in performing a global reduction such as gyrokinetics.

Benjamin Cambon; Xavier Leoncini; Michel Vittot; Rmi Dumont; Xavier Garbet

2014-02-11T23:59:59.000Z

370

Neptunium_Oxide_Precipitation_Kinetics_AJohnsen  

SciTech Connect (OSTI)

We evaluate the proposed NpO{sub 2}{sup +}(aq)-NpO{sub 2}(cr) reduction-precipitation system at elevated temperatures to obtain primary information on the effects of temperature, ionic strength, O{sub 2} and CO{sub 2}. Experiments conducted on unfiltered solutions at 10{sup -4} M NpO{sub 2}{sup +}(aq), neutral pH, and 200 C indicated that solution colloids strongly affect precipitation kinetics. Subsequent experiments on filtered solutions at 200, 212, and 225 C showed consistent and distinctive temperature-dependent behavior at reaction times {le} 800 hours. At longer times, the 200 C experiments showed unexpected dissolution of neptunium solids, but experiments at 212 C and 225 C demonstrated quasi steady-state neptunium concentrations of 3 x 10{sup -6} M and 6 x 10{sup -6} M, respectively. Solids from a representative experiment analyzed by X-ray diffraction were consistent with NpO{sub 2}(cr). A 200 C experiment with a NaCl concentration of 0.05 M showed a dramatic increase in the rate of neptunium loss. A 200 C experiment in an argon atmosphere resulted in nearly complete loss of aqueous neptunium. Previously proposed NpO{sub 2}{sup +}(aq)-NpO{sub 2}(cr) reduction-precipitation mechanisms in the literature specified a 1:1 ratio of neptunium loss and H{sup +} production in solution over time. However, all experiments demonstrated ratios of approximately 0.4 to 0.5. Carbonate equilibria can account for only about 40% of this discrepancy, leaving an unexpected deficit in H+ production that suggests that additional chemical processes are occurring.

Johnsen, A M; Roberts, K E; Prussin, S G

2012-06-08T23:59:59.000Z

371

One-dimensional kinetics modifications for BWR reload methods  

SciTech Connect (OSTI)

Yankee Atomic Electric Company (YAEC) currently uses RETRAN-02 to analyze limiting transients and establish operating minimum critical power ratio (MCPR) limits for Vermont Yankee (VY) boiling water reactor (BWR) reload analysis. The US Nuclear Regulatory Commission-approved analysis methods, used in previous cycles, use the point-kinetics modeling option in RETRAN-02 to represent transient-induced neutronic feedback. RETRAN-02 also contains a one-dimensional (1-D) kinetics neutronic feedback model option that provides a more accurate transient power prediction than the point-kinetics model. In the past few fuel cycles, the thermal or MCPR operating margin at VY has eroded due to increases in fuel cycle length. To offset this decrease, YAEC has developed the capability to use the more accurate 1-D kinetics RETRAN option. This paper reviews the qualification effort for the YAEC BWR methods. This paper also presents a comparison between RETRAN-02 predictions using 1-D and point kinetics for the limiting transient, and demonstrates the typical gain in thermal margin from 1-D kinetics.

Chandola, V.; Robichaud, J.D.

1990-01-01T23:59:59.000Z

372

Peptide concentration alters intermediate species in amyloid ? fibrillation kinetics  

SciTech Connect (OSTI)

Highlights: ? A?(140) aggregation in vitro has been monitored at different concentrations. ? A?(140) fibrillation does not always follow conventional kinetic mechanisms. ? We demonstrate non-linear features in the kinetics of A?(140) fibril formation. ? At high A?(140) concentrations secondary processes dictate fibrillation speed. ? Intermediate species may play significant roles on final amyloid fibril development. -- Abstract: The kinetic mechanism of amyloid aggregation remains to be fully understood. Investigations into the species present in the different kinetic phases can assist our comprehension of amyloid diseases and further our understanding of the mechanism behind amyloid ? (A?) (140) peptide aggregation. Thioflavin T (ThT) fluorescence and transmission electron microscopy (TEM) have been used in combination to monitor A?(140) aggregation in vitro at both normal and higher than standard concentrations. The observed fibrillation behaviour deviates, in several respects, from standard concepts of the nucleationpolymerisation models and shows such features as concentration-dependent non-linear effects in the assembly mechanism. A?(140) fibrillation kinetics do not always follow conventional kinetic mechanisms and, specifically at high concentrations, intermediate structures become populated and secondary processes may further modify the fibrillation mechanism.

Garvey, M., E-mail: megan.garvey@molbiotech.rwth-aachen.de [Max-Planck Research Unit for Enzymology of Protein Folding, Weinbergweg 22, 06120 Halle (Saale) (Germany); Morgado, I., E-mail: immorgado@ualg.pt [Max-Planck Research Unit for Enzymology of Protein Folding, Weinbergweg 22, 06120 Halle (Saale) (Germany)

2013-04-12T23:59:59.000Z

373

A unified analysis of crustal motion in Southern California, 19702004: The SCEC crustal motion map  

E-Print Network [OSTI]

To determine crustal motions in and around southern California, we have processed and combined trilateration data collected from 1970 to 1992, VLBI data from 1979 to 1992, and GPS data from 1986 to 2004: a long temporal ...

Shen, Z.-K.

374

Utilization of Recently Enhanced Simulation Tools and Empirical Ground Motion Databases to Improve Ground Motion Prediction Capabilities  

E-Print Network [OSTI]

K. Irikura, H.K. Thio, P.G. Somerville, Y. Fukushima, and Y.Fukushima. Attenuation relations of strong ground motion incatastrophic damage at the Fukushima nuclear power plant,

Khodavirdi, Khatereh

2013-01-01T23:59:59.000Z

375

New insights into the mechanism and kinetics of adsorbed CO electrooxidation on platinum: Online mass spectrometry and Kinetic  

E-Print Network [OSTI]

New insights into the mechanism and kinetics of adsorbed CO electrooxidation on platinum: Online Monte Carlo simulation code specific to the electrooxidation of adsorbed CO on Pt. The simulations

Pfeifer, Holger

376

Model calculations of the hydrogen/deuterium kinetic isotope effect in the atomic hydrogen + disilane reaction  

Science Journals Connector (OSTI)

Model calculations of the hydrogen/deuterium kinetic isotope effect in the atomic hydrogen + disilane reaction ...

I. Safarik; T. L. Pollock; O. P. Strausz

1974-01-01T23:59:59.000Z

377

Catalyst deactivation kinetics: An apparent delay in decreasing of catalyst activity, inflection point and data interpretation  

Science Journals Connector (OSTI)

Problems of catalyst deactivation kinetics and catalyst stability testing are considered. An apparent delay...

N. M. Ostrovskii

2011-12-01T23:59:59.000Z

378

Kinetics of Ni Sorption in Soils: Roles of Soil Organic Matter and Ni Precipitation  

E-Print Network [OSTI]

Kinetics of Ni Sorption in Soils: Roles of Soil Organic Matter and Ni Precipitation Zhenqing Shi, Lawrence, Kansas 66045-7609, United States *S Supporting Information ABSTRACT: The kinetics of Ni sorption) precipitates using both experimental studies and kinetic modeling. Batch sorption kinetic experiments were

Sparks, Donald L.

379

PREDICTING MERGER-INDUCED GAS MOTIONS IN ?CDM GALAXY CLUSTERS  

SciTech Connect (OSTI)

In the hierarchical structure formation model, clusters of galaxies form through a sequence of mergers and continuous mass accretion, which generate significant random gas motions especially in their outskirts where material is actively accreting. Non-thermal pressure provided by the internal gas motions affects the thermodynamic structure of the X-ray emitting intracluster plasma and introduces biases in the physical interpretation of X-ray and Sunyaev-Zeldovich effect observations. However, we know very little about the nature of gas motions in galaxy clusters. The ASTRO-H X-ray mission, scheduled to launch in 2015, will have a calorimeter capable of measuring gas motions in galaxy clusters at the level of ?< 100 km s{sup 1}. In this work, we predict the level of merger-induced gas motions expected in the ?CDM model using hydrodynamical simulations of galaxy cluster formation. We show that the gas velocity dispersion is larger in more massive clusters, but exhibits a large scatter. We show that systems with large gas motions are morphologically disturbed, while early forming, relaxed groups show a smaller level of gas motions. By analyzing mock ASTRO-H observations of simulated clusters, we show that such observations can accurately measure the gas velocity dispersion out to the outskirts of nearby relaxed galaxy clusters. ASTRO-H analysis of merging clusters, on the other hand, requires multi-component spectral fitting and enables unique studies of substructures in galaxy clusters by measuring both the peculiar velocities and the velocity dispersion of gas within individual sub-clusters.

Nagai, Daisuke; Lau, Erwin T.; Avestruz, Camille; Rudd, Douglas H. [Department of Physics, Yale University, New Haven, CT 06520 (United States); Nelson, Kaylea, E-mail: daisuke.nagai@yale.edu [Department of Astronomy, Yale University, New Haven, CT 06520 (United States)

2013-11-10T23:59:59.000Z

380

The Impact of Alternative Fuels on Combustion Kinetics  

SciTech Connect (OSTI)

The research targets the development of detailed kinetic models to quantitatively characterize the impact of alternative fuels on the performance of Navy turbines and diesel engines. Such impacts include kinetic properties such as cetane number, flame speed, and emissions as well as physical properties such as the impact of boiling point distributions on fuel vaporization and mixing. The primary focus will be Fischer-Tropsch liquids made from natural gas, coal or biomass. The models will include both the effects of operation with these alternative fuels as well as blends of these fuels with conventional petroleum-based fuels. The team will develop the requisite kinetic rules for specific reaction types and incorporate these into detailed kinetic mechanisms to predict the combustion performance of neat alternative fuels as well as blends of these fuels with conventional fuels. Reduced kinetic models will be then developed to allow solution of the coupled kinetics/transport problems. This is a collaboration between the Colorado School of Mines (CSM) and the Lawrence Livermore National Laboratory (LLNL). The CSM/LLNL team plans to build on the substantial progress made in recent years in developing accurate detailed chemical mechanisms for the oxidation and pyrolysis of conventional fuels. Particular emphasis will be placed upon reactions of the isoalkanes and the daughter radicals, especially tertiary radicals, formed by abstraction from the isoalkanes. The various components of the program are described. We have been developing the kinetic models for two iso-dodecane molecules, using the same kinetic modeling formalisms that were developed for the gasoline and diesel primary reference fuels. These mechanisms, and the thermochemical and transport coefficient submodels for them, are very close to completion at the time of this report, and we expect them to be available for kinetic simulations early in the coming year. They will provide a basis for prediction and selection of desirable F-T molecules for use in jet engine simulations, where we should be able to predict the ignition, combustion and emissions characteristics of proposed fuel components. These mechanisms include the reactions and chemical species needed to describe high temperature phenomena such as shock tube ignition and flammability behavior, and they will also include low temperature kinetics to describe other ignition phenomena such as compression ignition and knocking. During the past years, our hydrocarbon kinetics modeling group at LLNL has focused a great deal on fuels typical of gasoline and diesel fuel. About 10 years ago, we developed kinetic models for the fuel octane primary reference fuels, n-heptane [1] and iso-octane [2], which have 7 and 8 carbon atoms and are therefore representative of typical gasoline fuels. N-heptane represents the low limit of knock resistance with an octane number of 0, while iso-octane is very knock resistant with an octane number of 100. High knock resistance in iso-octane was attributed largely to the large fraction of primary C-H bonds in the molecule, including 15 of the 18 C-H bonds, and the high bond energy of these primary bonds plays a large role in this knock resistance. In contrast, in the much more ignitable n-heptane, 10 of its 16 C-H bonds are much less strongly bound secondary C-H bonds, leading to its very low octane number. All of these factors, as well as a similarly complex kinetic description of the equally important role of the transition state rings that transfer H atoms within the reacting fuel molecules, were quantified and collected into large kinetic reaction mechanisms that are used by many researchers in the fuel chemistry world.

Pitz, W J; Westbrook, C K

2009-07-30T23:59:59.000Z

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


381

Correspondences between what infants see and know about causal and self-propelled motion  

E-Print Network [OSTI]

Generalization a b s t r a c t The associative learning account of how infants identify human motion rests exists of what visual input infants receive of human motion, and of causal and self-propelled motion reserved. 1. Introduction Motion is a powerful predictor of what things are. Con- sider walking

Aslin, Richard N.

382

Motion planning for robotic spray cleaning with environmentally safe solvents  

SciTech Connect (OSTI)

Automatic motion planning of a spray cleaning robot with collision avoidance is presented in this paper. In manufacturing environments, electronic and mechanical components are traditionally cleaned by spraying or dipping them using chlorofluorocarbon (CFC) solvents. As new scientific data show that such solvents are major causes for stratospheric ozone depletion, an alternate cleaning method is needed. Part cleaning with aqueous solvents is environmentally safe, but can require precision spraying at high pressures for extended time periods. Operator fatigue during manual spraying can decrease the quality of the cleaning process. By spraying with a robotic manipulator, the necessary spray accuracy and consistency to manufacture highreliability components can be obtained. Our motion planner was developed to automatically generate motions for spraying robots based on the part geometry and cleaning process parameters. For spraying paint and other coatings a geometric description of the parts and robot may be sufficient for motion planning, since coatings are usually done over the visible surfaces. For spray cleaning, the requirement to reach hidden surfaces necessitates the addition of a rule-based method to the geometric motion planning.

Hwang, Yong K.; Meirans, L.; Drotning, W.D.

1993-09-01T23:59:59.000Z

383

Inlichtingenblad, matlab-en simulink handleiding en  

E-Print Network [OSTI]

Inlichtingenblad, matlab- en simulink handleiding en practicumopgaven IWS 1 #12;6 3 Matlab 3.1 Fundamentals Matlab. The name Matlab stands for matrix laboratory. Main principle. Matlab works and commands in Matlab are intended to be natural in a matrix sense, not unlike how they might be indicated

Al Hanbali, Ahmad

384

Inlichtingenblad, matlab en simulink handleiding en  

E-Print Network [OSTI]

Inlichtingenblad, matlab­ en simulink handleiding en practicumopgaven IWS 1 #12; 6 3 Matlab 3.1 Fundamentals Matlab. The name Matlab stands for matrix laboratory. Main principle. Matlab works and commands in Matlab are intended to be natural in a matrix sense, not unlike how they might be indicated

Al Hanbali, Ahmad

385

Gravitationally Induced Particle Production: Thermodynamics and Kinetic Theory  

E-Print Network [OSTI]

A relativistic kinetic description for the irreversible thermodynamic process of gravitationally induced particle production is proposed in the context of an expanding Friedmann-Robertson-Walker (FRW) geometry. We show that the covariant thermodynamic treatment referred to as "adiabatic" particle production provoked by the cosmic time-varying gravitational field has a consistent kinetic counterpart. The variation of the distribution function is associated to a non-collisional kinetic term of quantum-gravitational origin which is proportional to the ratio $\\Gamma/H$, where $\\Gamma$ is the gravitational particle production rate and H is the Hubble parameter. For $\\Gamma gravitation. The resulting non-equilibrium distribution function has the same functional form of equilibrium with the evolution laws corrected by the particle production process. The macroscopic temperature evolution law is also kinetically derived for massive and massless particles. The present approach points to the possibility of an exact (semi-classical) quantum-gravitational kinetic treatment by incorporating back-reaction effects in the cosmic background.

J. A. S. Lima; I. P. Baranov

2014-11-24T23:59:59.000Z

386

Chemical Kinetics of Hydrocarbon Ignition in Practical Combustion Systems  

SciTech Connect (OSTI)

Chemical kinetic factors of hydrocarbon oxidation are examined in a variety of ignition problems. Ignition is related to the presence of a dominant chain branching reaction mechanism that can drive a chemical system to completion in a very short period of time. Ignition in laboratory environments is studied for problems including shock tubes and rapid compression machines. Modeling of the laboratory systems are used to develop kinetic models that can be used to analyze ignition in practical systems. Two major chain branching regimes are identified, one consisting of high temperature ignition with a chain branching reaction mechanism based on the reaction between atomic hydrogen with molecular oxygen, and the second based on an intermediate temperature thermal decomposition of hydrogen peroxide. Kinetic models are then used to describe ignition in practical combustion environments, including detonations and pulse combustors for high temperature ignition, and engine knock and diesel ignition for intermediate temperature ignition. The final example of ignition in a practical environment is homogeneous charge, compression ignition (HCCI) which is shown to be a problem dominated by the kinetics intermediate temperature hydrocarbon ignition. Model results show why high hydrocarbon and CO emissions are inevitable in HCCI combustion. The conclusion of this study is that the kinetics of hydrocarbon ignition are actually quite simple, since only one or two elementary reactions are dominant. However, there are many combustion factors that can influence these two major reactions, and these are the features that vary from one practical system to another.

Westbrook, C.K.

2000-07-07T23:59:59.000Z

387

First principles Tafel kinetics of methanol oxidation on Pt(111)  

Science Journals Connector (OSTI)

Abstract Electrocatalytic methanol oxidation is of fundamental importance in electrochemistry and also a key reaction in direct methanol fuel cell. To resolve the kinetics at the atomic level, this work investigates the potential-dependent reaction kinetics of methanol oxidation on Pt(111) using the first principles periodic continuum solvation model based on modified-PoissonBoltzmann equation (CM-MPB), focusing on the initial dehydrogenation elementary steps. A theoretical model to predict Tafel kinetics (current vs potential) is established by considering that the rate-determining step of methanol oxidation (to CO) is the first CH bond breaking (CH3OH(aq)?CH2OH*+H*) according to the computed free energy profile. The first CH bond breaking reaction needs to overcome a large entropy loss during methanol approaching to the surface and replacing the adsorbed water molecules. While no apparent charge transfer is involved in this elementary step, the charge transfer coefficient of the reaction is calculated to be 0.36, an unconventional value for charge transfer reactions, and the Tafel slope is deduced to be 166mV. The results show that the metal/adsorbate interaction and the solvation environment play important roles on influencing the Tafel kinetics. The knowledge learned from the potential-dependent kinetics of methanol oxidation can be applied in general for understanding the electrocatalytic reactions of organic molecules at the solidliquid interface.

Ya-Hui Fang; Zhi-Pan Liu

2014-01-01T23:59:59.000Z

388

MULTI-VALUED MOTION FIELDS ESTIMATION FOR TRANSPARENT  

E-Print Network [OSTI]

is with the Computer Science Department, Centro de Investigacion en Matematicas A.C., Apdo. Postal 402, Guanajuato, Gto Department, Centro de Investigacion en Matematicas A.C., Apdo. Postal 402, Guanajuato, Gto., 36000, Mexico. . . . . . . . . . . . . . . . . . . 8 2 The diffusion coefficients wi. The diffusion process is performed in the spatio

Rivera, Mariano

389

Motion of Nanomagnet Oscillators - Argonne National Laboratories, Materials  

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

Highlights > Motion of Nanomagnet Oscillators Highlights > Motion of Nanomagnet Oscillators Motion of Nanomagnet Oscillators Nanopillars consisting of two magnetic layers separated by an insulating or non-magnetic metal can exhibit oscillations: a constant current can make the magnetization in one layer precess with frequencies in the gigahertz range. The physics behind this is the so-called spin torque effect, through which conduction electrons transfer angular momentum to the magnetization in a layer. If the current is adjusted such that the rate of transfer of angular momentum from the conduction electrons to the magnetization in the second magnetic layer is precisely balanced by the loss of angular momentum due to dissipation in the magnetic layer, the oscillations become very precise and long-lived. Such devices are called spin torque oscillators,

390

ISG8-Ground Motion; Site Requirements and Investigations  

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

Ground Motion; Site Requirements and Investigations (WG5) Ground Motion; Site Requirements and Investigations (WG5) June 24 - 27, 2002 Bldg.281 Conventional Facilities Rm. (A. Seryi, T. Tauchi) Parallel Sessions: Working Groups: WG1: Parameters, Design, Instrumentation and Tuning WG2: Damping Rings and ATF WG3: RF Sources WG4:Structures WG5: Ground Motion; Site Requirements and Investigations Agenda, ISG8 WG5 Final Version Goal: The main goal is to try to establish requirements to a linear collider site and determine a set of criteria that would allow evaluating a particular site. Trip to California representative sites: Scheduled and happened on Friday, departure 6am. This was a full day event. (Fred Asiri and Jerry Aarons were the guides). Monday, June 24, 11:00-12:00 Initial discussion Monday (joint with WG1) 13:30-17:30, Bldg.212, Cascades room

391

Damage potential characteristics of near-field earthquake motions  

SciTech Connect (OSTI)

In recent major earthquakes; i.e., 1994 Northridge earthquake in the US and 1995 Great Kansai earthquake in Japan, several close-distance strong ground motions have been obtained, which may be of significant interest to earthquake/structural engineers. The damage potential of those recently obtained ground motions is examined based on the nonlinear response analyses of various SDOF systems. For comparison purposes, the El Centro records from the 1940 Imperial Valley earthquake, as well as a set of artificial motions consistent with the R.G. 1.60 spectrum were also used. The engineering insights regarding the seismic design of structures are discussed based on a series of parametric studies.

Park, Y. [Brookhaven National Lab., Upton, NY (United States); Chokshi, N. [Nuclear Regulatory Commission, Washington, DC (United States)

1997-04-01T23:59:59.000Z

392

Proper Motion Objects in the Hubble Deep Field  

E-Print Network [OSTI]

Using the deepest and finest resolution images of the Universe acquired with the Hubble Space Telescope and a similar image taken 7 years later for the Great Observatories Origins Deep Survey, we have derived proper motions for the point sources in the Hubble Deep Field--North. Two faint blue objects,HDF2234 and HDF3072, are found to display significant proper motion, 10.0 $\\pm$ 2.5 and 15.5 $\\pm$ 3.8 mas yr$^{-1}$. Photometric distances and tangential velocities for these stars are consistent with disk white dwarfs located at $\\sim$ 500 pc. The faint blue objects analyzed by Ibata et al. (1999) and Mendez & Minniti (2000) do not show any significant proper motion; they are not halo white dwarfs and they do not contribute to the Galactic dark matter. These objects are likely to be distant AGN.

M. Kilic; Ted von Hippel; R. A. Mendez; D. E. Winget

2004-03-26T23:59:59.000Z

393

Stirling engine power control and motion conversion mechanism  

DOE Patents [OSTI]

A motion conversion device for converting between the reciprocating motion of the pistons in a Stirling engine and the rotating motion of its output shaft, and for changing the stroke and phase of the pistons, includes a lever pivoted at one end and having a cam follower at the other end. The piston rod engages the lever intermediate its ends and the cam follower engages a cam keyed to the output shaft. The lever pivot can be moved to change the length of the moment arm defined between the cam follower and the piston rod the change the piston stroke and force exerted on the cam, and the levers can be moved in opposite directions to change the phase between pistons.

Marks, David T. (Birmingham, MI)

1983-01-01T23:59:59.000Z

394

Vibrated polar disks: spontaneous motion, binary collisions, and collective dynamics  

E-Print Network [OSTI]

We study the spontaneous motion, binary collisions, and collective dynamics of "polar disks", i.e. purpose-built particles which, when vibrated between two horizontal plates, move coherently along a direction strongly correlated to their intrinsic polarity. The motion of our particles, although nominally three-dimensional and complicated, is well accounted for by a two-dimensional persistent random walk. Their binary collisions are spatiotemporally extended events during which multiple actual collisions happen, yielding a weak average effective alignment. We show that this well-controlled, "dry active matter" system can display collective motion with orientationally-ordered regions of the order of the system size. We provide evidence of strong number density in the most ordered regimes observed. These results are discussed in the light of the limitations of our system, notably those due to the inevitable presence of walls.

Julien Deseigne; Sbastien Lonard; Olivier Dauchot; Hugues Chat

2012-01-29T23:59:59.000Z

395

Regular Black Hole Metric with Three Constants of Motion  

E-Print Network [OSTI]

According to the no-hair theorem, astrophysical black holes are uniquely characterized by their masses and spins and are described by the Kerr metric. Several parametric spacetimes which deviate from the Kerr metric have been proposed in order to test this theorem with observations of black holes in both the electromagnetic and gravitational-wave spectra. Such metrics often contain naked singularities or closed timelike curves in the vicinity of the compact objects that can limit the applicability of the metrics to compact objects that do not spin rapidly, and generally admit only two constants of motion. The existence of a third constant, however, can facilitate the calculation of observables, because the equations of motion can be written in first-order form. In this paper, I design a Kerr-like black hole metric which is regular everywhere outside of the event horizon, possesses three independent constants of motion, and depends nonlinearly on four free functions that parameterize potential deviations from ...

Johannsen, Tim

2015-01-01T23:59:59.000Z

396

Friction and the oscillatory motion of granular flows  

E-Print Network [OSTI]

This contribution reports on numerical simulations of 2D granular flows on erodible beds. The broad aim is to investigate whether simple flows of model granular matter exhibits spontaneous oscillatory motion in generic flow conditions, and in this case, whether the frictional properties of the contacts between grains may affect the existence or the characteristics of this oscillatory motion. The analysis of different series of simulations show that the flow develops an oscillatory motion with a well-defined frequency which increases like the inverse of the velocity's square root. We show that the oscillation is essentially a surface phenomena. The amplitude of the oscillation is higher for lower volume fractions, and can thus be related to the flow velocity and grains friction properties. The study of the influence of the periodic geometry of the simulation cell shows no significant effect. These results are discussed in relation to sonic sands.

Lydie Staron

2012-11-26T23:59:59.000Z

397

Structure-Activity Relationships in NH3-SCR over Cu-SSZ-13 as Probed by Reaction Kinetics and EPR Studies  

SciTech Connect (OSTI)

Cu-SSZ-13 catalysts with various Cu loadings were prepared via solution ion exchange. The hydrated samples were studied with Electron Paramagnetic Resonance (EPR). Cu2+ ion coordination numbers were obtained by analyzing the hyperfine structures while Cu-Cu distances were estimated from line broadening of the EPR features. By coupling EPR and temperature-programmed reduction (TPR) results, two Cu2+ ion locations were suggested. Standard and fast NH3-SCR, as well as non-selective NH3 oxidation reactions were carried out over these catalysts at high space velocities. For the SCR reaction, intra-particle diffusion limitation was found throughout the reaction temperatures investigated. Although clear structure-activity relationships cannot be derived, the reaction results allow for reactant diffusivities and Cu2+ ion locations to be estimated. The slower NH3 oxidation reaction, on the other hand, is kinetically limited at low temperatures, and, therefore, allows for a correlation between Cu2+ ion location and reaction kinetics to be made. Furthermore, the dynamic Cu2+ ion motion as a function of temperature could also be derived from the NH3 oxidation kinetics.

Gao, Feng; Walter, Eric D.; Karp, Eric M.; Luo, Jin-Yong; Tonkyn, Russell G.; Kwak, Ja Hun; Szanyi, Janos; Peden, Charles HF

2013-04-01T23:59:59.000Z

398

Our Peculiar Motion Away from the Local Void  

E-Print Network [OSTI]

The peculiar velocity of the Local Group of galaxies manifested in the Cosmic Microwave Background dipole is found to decompose into three dominant components. The three components are clearly separated because they arise on distinct spatial scales and are fortuitously almost orthogonal in their influences. The nearest, which is distinguished by a velocity discontinuity at ~7 Mpc, arises from the evacuation of the Local Void. We lie in the Local Sheet that bounds the void. Random motions within the Local Sheet are small. Our Galaxy participates in the bulk motion of the Local Sheet away from the Local Void. The component of our motion on an intermediate scale is attributed to the Virgo Cluster and its surroundings, 17 Mpc away. The third and largest component is an attraction on scales larger than 3000 km/s and centered near the direction of the Centaurus Cluster. The amplitudes of the three components are 259, 185, and 455 km/s, respectively, adding collectively to 631 km/s in the reference frame of the Local Sheet. Taking the nearby influences into account causes the residual attributed to large scales to align with observed concentrations of distant galaxies and reduces somewhat the amplitude of motion attributed to their pull. On small scales, in addition to the motion of our Local Sheet away from the Local Void, the nearest adjacent filament, the Leo Spur, is seen to be moving in a direction that will lead to convergence with our filament. Finally, a good distance to an isolated galaxy within the Local Void reveals that this dwarf system has a motion of at least 230 km/s away from the void center. Given the velocities expected from gravitational instability theory in the standard cosmological paradigm, the distance to the center of the Local Void must be at least 23 Mpc from our position. The Local Void is large!

R. Brent Tully; Edward J. Shaya; Igor D. Karachentsev; Helene M. Courtois; Dale D. Kocevski; Luca Rizzi; Alan Peel

2007-05-29T23:59:59.000Z

399

NETL: Mercury Emissions Control Technologies - Bench Scale Kinetics of  

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

Bench Scale Kinetics of Mercury Reactions in FGD Liquors Bench Scale Kinetics of Mercury Reactions in FGD Liquors When research into the measurement and control of Hg emissions from coal-fired power plants began in earnest in the early 1990s, it was observed that oxidized mercury can be scrubbed at high efficiency in wet FGD systems, while elemental mercury can not. In many cases, elemental mercury concentrations were observed to increase slightly across wet FGD systems, but this was typically regarded as within the variability of the measurement methods. However, later measurements have shown substantial re-emissions from some FGD systems. The goal of this project is to develop a fundamental understanding of the aqueous chemistry of mercury (Hg) absorbed by wet flue gas desulfurization (FGD) scrubbing liquors. Specifically, the project will determine the chemical reactions that oxidized mercury undergoes once absorbed, the byproducts of those reactions, and reaction kinetics.

400

Amber Kinetics, Inc. Smart Grid Demonstration Project | Open Energy  

Open Energy Info (EERE)

Kinetics, Inc. Smart Grid Demonstration Project Kinetics, Inc. Smart Grid Demonstration Project Jump to: navigation, search Project Lead Amber Kinetics, Inc. Country United States Headquarters Location Fremont, California Recovery Act Funding $4,000,000.00 Total Project Value $10,000,000.00 Coordinates 37.5482697°, -121.9885719° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

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


401

Kinetic Isotope Effects of L-Dopa Decarboxylase  

Science Journals Connector (OSTI)

Kinetic Isotope Effects of L-Dopa Decarboxylase ... A mixed centroid path integral and free energy perturbation method (PI-FEP/UM) has been used to investigate the primary carbon and secondary hydrogen kinetic isotope effects (KIEs) in the amino acid decarboxylation of L-Dopa catalyzed by the enzyme L-Dopa decarboxylase (DDC) along with the corresponding uncatalyzed reaction in water. ... The computed kinetic isotope effects (KIE) on the carboxylate C-13 are consistent with that observed on decarboxylation reactions of other PLP-dependent enzymes, whereas the KIEs on the ? carbon and secondary proton, which can easily be validated experimentally, may be used as a possible identification for the active form of the PLP tautomer in the active site of DDC. ...

Yen-lin Lin; Jiali Gao

2011-03-02T23:59:59.000Z

402

Kinetic azeotropy and design of reactive distillation columns  

SciTech Connect (OSTI)

The reactive fixed points in the distillation maps of a reactive distillation column (RDC) with kinetically controlled reactions are identified and their role in deciding the design feasibility has been elucidated. The fixed points at which both reaction and distillation vectors have zero magnitudes correspond to the equilibrium fixed point. It is known that the relative positions of these points for the rectifying and stripping sections determine the value of the minimum reflux ratio. However, apart from these fixed points, there are certain fixed points in the distillation map at which, though the reaction and distillation vectors have nonzero magnitudes, they nullify the effects of each other. These points correspond to the kinetic fixed points and have a special significance. Their positions have direct influence on the feasible product composition. A simple example of an ideal ternary system undergoing a reaction 2B {longleftrightarrow} A + c has been illustrated to show the importance of kinetic azeotropy in the design aspects of RDC.

Mahajani, S.M. [Monash Univ., Clayton, Victoria (Australia). Dept. of Chemical Engineering] [Monash Univ., Clayton, Victoria (Australia). Dept. of Chemical Engineering

1999-01-01T23:59:59.000Z

403

Kinetic Alfvn wave turbulence and formation of localized structures  

SciTech Connect (OSTI)

This work presents non-linear interaction of magnetosonic wave with kinetic Alfvn wave for intermediate ?-plasma (m{sub e}/m{sub i}???1). A set of dimensionless equations have been developed for analysis by considering ponderomotive force due to pump kinetic Alfvn wave in the dynamics of magnetosonic wave. Stability analysis has been done to study modulational instability or linear growth rate. Further, numerical simulation has been carried out to study the nonlinear stage of instability and resulting power spectrum applicable to solar wind around 1 AU. Due to the nonlinearity, background density of magnetosonic wave gets modified which results in localization of kinetic Alfvn wave. From the obtained results, we observed that spectral index follows k{sup ?3.0}, consistent with observation received by Cluster spacecraft for the solar wind around 1 AU. The result shows the steepening of power spectrum which may be responsible for heating and acceleration of plasma particles in solar wind.

Sharma, R. P. [Centre for Energy Studies, Indian Institute of Technology Delhi, Delhi 110016 (India)] [Centre for Energy Studies, Indian Institute of Technology Delhi, Delhi 110016 (India); Modi, K. V. [Centre for Energy Studies, Indian Institute of Technology Delhi, Delhi 110016 (India) [Centre for Energy Studies, Indian Institute of Technology Delhi, Delhi 110016 (India); Mechanical Engineering Department, Government Engineering College Valsad, Gujarat 396001 (India)

2013-08-15T23:59:59.000Z

404

Chitosan as green kinetic inhibitors for gas hydrate formation  

Science Journals Connector (OSTI)

The kinetic inhibiting effect of a number of chitosans on hydrate formation was investigated using methane and methane/ethane gas mixtures. The results indicated that chitosan was a good kinetic inhibitor. The induction time of gas hydrate formation evidently increased with the degree of deacetylation (DD), however, when DD was higher than 80%, the effect of DD on the induction time was negligible. Moreover, it was found that the molecular weight (MW) of chitosan and the addition of polyethylene oxide (PEO) had little effect on the induction time. The optimal concentration of chitosan was found to be 0.6 wt%. Finally, the mechanisms of the kinetic inhibitor on the hydrate formation were discussed.

Yongjun Xu; Minlin Yang; Xiaoxi Yang

2010-01-01T23:59:59.000Z

405

Gravitationally Induced Particle Production: Thermodynamics and Kinetic Theory  

E-Print Network [OSTI]

A relativistic kinetic description for the irreversible thermodynamic process of gravitationally induced particle production is proposed in the context of an expanding Friedmann-Robertson-Walker (FRW) geometry. We show that the covariant thermodynamic treatment referred to as "adiabatic" particle production provoked by the cosmic time-varying gravitational field has a consistent kinetic counterpart. The variation of the distribution function is associated to a non-collisional kinetic term of quantum-gravitational origin which is proportional to the ratio $\\Gamma/H$, where $\\Gamma$ is the gravitational particle production rate and H is the Hubble parameter. For $\\Gamma << H$ the process is negligible and as should be expected it also vanishes (regardless of the value of $\\Gamma$) in the absence of gravitation. The resulting non-equilibrium distribution function has the same functional form of equilibrium with the evolution laws corrected by the particle production process. The macroscopic temperature evo...

Lima, J A S

2014-01-01T23:59:59.000Z

406

Kinetic modelling of the thermal decomposition of ettringite into metaettringite  

Science Journals Connector (OSTI)

Despite recent insights into thermal stability of ettringite and structural changes during decomposition, a lack of knowledge on nucleation and growth mechanisms of metaettringite remained. Therefore, a better understanding of the kinetic modelling of this heterogeneous reaction was proposed. Thanks to an experimental approach allowing to check the validity of kinetic assumptions (rate-determining step, expression of the rate as d?/dt=k f(?)), a good agreement was found between the calculated and experimental ? vs. t and d?/dt vs. t kinetic curves. The reaction area of the region in which the rate-limiting step occurs was also elucidated. Finally, we demonstrated that the rate-limiting step of the growth process follows an Arrhenius law in non-isothermal conditions.

J. Pourchez; F. Valdivieso; P. Grosseau; R. Guyonnet; B. Guilhot

2006-01-01T23:59:59.000Z

407

Robot positioning based on point-to-point motion capability  

SciTech Connect (OSTI)

This paper presents an optimal search method for determining the base location of a robot manipulator so that the robot can have a designated point-to-point (PTP) motion capabilities. Based on the topological characterization of the manipulator workspace and the definitions of various p-connectivity, a computational method is developed for enumerating various PTP motion capabilities into quantitative cost functions. Then an unconstrained search by minimizing the cost function yields the task feasible location of the robot base. This methodology is useful for placement of mobile manipulators and robotic workcell layout design.

Park, Y. S.; Cho, H. S.; Koh, K. C.

2000-03-20T23:59:59.000Z

408

Atomistic processes of grain boundary motion and annihilation in graphene  

SciTech Connect (OSTI)

The motion and annihilation of a grain boundary (GB) in graphene are investigated by tight-binding molecular dynamics (TBMD) simulation and ab initio local density approximation total energy calculation. A meandering structure of the GB is found to be energetically more favorable than other structures, in good agreement with experiment. It is observed in the TBMD simulation that evaporation of carbon dimers and sequential Stone?Wales transformations of carbon bonds lead to rapid motion and annihilation of the GB. The dimer erection and evaporation are found to proceed by formation of an adatom due to bond breaking. These results shed interesting light on the fabrication of high-quality graphene.

Lee, Gun-Do; Yoon, Euijoon; Wang, Cai-Zhuang; Ho, Kai-Ming

2013-03-19T23:59:59.000Z

409

Motion response of floating structures to regular waves  

Science Journals Connector (OSTI)

Linearized and non-linear methods for analysing motion response of floating structures to regular waves are discussed in this paper. The linearized method is based upon a traditional frequency domain approach, whereas the non-linear method is based upon the time integration method as proposed by Newmark. In addition, a new approximate method is proposed. This method, which employs a Newton-Raphson solution of the equations of motion, is an extension of the linearized method and is therefore valid for near linear systems. These methods are applied to a taut line moored structure; the Aker Tethered Production Platform and to a conventional semi-submersible, the Aker H3.

B.J. Natvig; J.W. Pendered

1980-01-01T23:59:59.000Z

410

Motional broadening in ensembles with heavy-tail frequency distribution  

SciTech Connect (OSTI)

We show that the spectrum of an ensemble of two-level systems can be broadened through ''resetting'' discrete fluctuations, in contrast to the well-known motional-narrowing effect. The broadening occurs if the ensemble frequency distribution has heavy tails with a diverging first moment. The asymptotic motional broadened line shape is then a Lorentzian. In case there is a physical upper cutoff in the frequency distribution, the broadening effect may still be observed, though only up to a certain fluctuation rate.

Sagi, Yoav; Pugatch, Rami; Almog, Ido; Davidson, Nir; Aizenman, Michael [Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100 (Israel); Departments of Physics and Mathematics, Princeton University, Princeton, NJ 08544 (United States)

2011-04-15T23:59:59.000Z

411

Single Cell Motion in Aggregates of Embryonic Cells  

Science Journals Connector (OSTI)

We investigate the motion of individual pigmented retinal cells in aggregates of neural retinal cells obtained from chicken embryos. Individual cells in aggregates move randomly in the absence of chemical or adhesion gradients: the power spectrum of position and velocity versus time correspond to Brownian motion and the velocities are uncorrelated in time. Thus a quasithermal model of cell migration like the extended Potts model is appropriate. We also measure cell diffusivity and the cell velocity distribution. The results support the idea that collections of embryonic cells behave as liquids with membrane fluctuations playing the role of temperature.

Jos C. M. Mombach and James A. Glazier

1996-04-15T23:59:59.000Z

412

Benchmarking kinetic calculations of resistive wall mode stability  

SciTech Connect (OSTI)

Validating the calculations of kinetic resistive wall mode (RWM) stability is important for confidently predicting RWM stable operating regions in ITER and other high performance tokamaks for disruption avoidance. Benchmarking the calculations of the Magnetohydrodynamic Resistive SpectrumKinetic (MARS-K) [Y. Liu et al., Phys. Plasmas 15, 112503 (2008)], Modification to Ideal Stability by Kinetic effects (MISK) [B. Hu et al., Phys. Plasmas 12, 057301 (2005)], and Perturbed Equilibrium Nonambipolar Transport (PENT) [N. Logan et al., Phys. Plasmas 20, 122507 (2013)] codes for two Solov'ev analytical equilibria and a projected ITER equilibrium has demonstrated good agreement between the codes. The important particle frequencies, the frequency resonance energy integral in which they are used, the marginally stable eigenfunctions, perturbed Lagrangians, and fluid growth rates are all generally consistent between the codes. The most important kinetic effect at low rotation is the resonance between the mode rotation and the trapped thermal particle's precession drift, and MARS-K, MISK, and PENT show good agreement in this term. The different ways the rational surface contribution was treated historically in the codes is identified as a source of disagreement in the bounce and transit resonance terms at higher plasma rotation. Calculations from all of the codes support the present understanding that RWM stability can be increased by kinetic effects at low rotation through precession drift resonance and at high rotation by bounce and transit resonances, while intermediate rotation can remain susceptible to instability. The applicability of benchmarked kinetic stability calculations to experimental results is demonstrated by the prediction of MISK calculations of near marginal growth rates for experimental marginal stability points from the National Spherical Torus Experiment (NSTX) [M. Ono et al., Nucl. Fusion 40, 557 (2000)].

Berkery, J. W.; Sabbagh, S. A. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)] [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States); Liu, Y. Q. [Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)] [Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom); Wang, Z. R.; Logan, N. C.; Park, J.-K.; Manickam, J. [Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)] [Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States); Betti, R. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)] [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)

2014-05-15T23:59:59.000Z

413

Fluctuation-dominated kinetics in diffusion-controlled reactions  

Science Journals Connector (OSTI)

The kinetics of a number of prototypical diffusion-controlled reactions are studied, primarily through the application of scaling approaches. Our goal is to investigate the effects of spatial inhomogeneities in the particle densities on the reaction kinetics. In general, we find that there exists an upper critical dimension below which the kinetics cannot be described by a rate-equation analysis, an approach which gives the kinetic laws of a mean-field approximation. Below the upper critical dimension, spatial inhomogeneities in the particle densities give rise to new fluctuation-dominated kinetics. For irreversible reactions, with bimolecular decay A+B?inert being a simple generic example, universal kinetic laws are obtained which are a function only of the spatial dimension, the number of particles needed to initiate a reaction, and the nature of the particle-conservation laws for the system. We also consider the generalization of bimolecular decay to a multistate process where particles of variable heights and traps of variable depths react. This phenomenologically rich example serves as an illustrative testing ground for scaling ideas. The introduction of a small reaction probability on bimolecular decay provides an example of a dramatic crossover from an initial mean-field decay to the fluctuation-dominated decay law at large times. When the possibility of a reverse reaction is allowed in bimolecular decay, the available evidence suggests that there is a power-law approach to the equilibrium state, rather than an exponential approach predicted by the rate equation. Many of our new theoretical predictions are tested by extensive numerical simulations.

K. Kang and S. Redner

1985-07-01T23:59:59.000Z

414

Motion as perturbation. II. Development of the method for dosimetric analysis of motion effects with fixed-gantry IMRT  

SciTech Connect (OSTI)

Purpose: In this work, the feasibility of implementing a motion-perturbation approach to accurately estimate volumetric dose in the presence of organ motionpreviously demonstrated for VMAT-is studied for static gantry IMRT. The method's accuracy is improved for the voxels that have very low planned dose but acquire appreciable dose due to motion. The study describes the modified algorithm and its experimental validation and provides an example of a clinical application. Methods: A contoured region-of-interest is propagated according to the predefined motion kernel throughout time-resolved 4D phantom dose grids. This timed series of 3D dose grids is produced by the measurement-guided dose reconstruction algorithm, based on an irradiation of a staticARCCHECK (AC) helical dosimeter array (Sun Nuclear Corp., Melbourne, FL). Each moving voxel collects dose over the dynamic simulation. The difference in dose-to-moving voxel vs dose-to-static voxel in-phantom forms the basis of a motion perturbation correction that is applied to the corresponding voxel in the patient dataset. A new method to synchronize the accelerator and dosimeter clocks, applicable to fixed-gantry IMRT, was developed. Refinements to the algorithm account for the excursion of low dose voxels into high dose regions, causing appreciable dose increase due to motion (LDVE correction). For experimental validation, four plans using TG-119 structure sets and objectives were produced using segmented IMRT direct machine parameters optimization in Pinnacle treatment planning system (v. 9.6, Philips Radiation Oncology Systems, Fitchburg, WI). All beams were delivered with the gantry angle of 0. Each beam was delivered three times: (1) to the static AC centered on the room lasers; (2) to a static phantom containing a MAPCHECK2 (MC2) planar diode array dosimeter (Sun Nuclear); and (3) to the moving MC2 phantom. The motion trajectory was an ellipse in the IEC XY plane, with 3 and 1.5 cm axes. The period was 5 s, with the resulting average motion speed of 1.45 cm/s. The motion-perturbed high resolution (2 mm voxel) volumetric dose grids on the MC2 phantom were generated for each beam. From each grid, a coronal dose plane at the detector level was extracted and compared to the corresponding moving MC2 measurement, using gamma analysis with both global (G) and local (L) dose-error normalization. Results: Using the TG-119 criteria of (3%G/3 mm), per beam average gamma analysis passing rates exceeded 95% in all cases. No individual beam had a passing rate below 91%. LDVE correction eliminated systematic disagreement patterns at the beams aperture edges. In a representative example, application of LDVE correction improved (2%L/2 mm) gamma analysis passing rate for an IMRT beam from 74% to 98%. Conclusions: The effect of motion on the moving region-of-interest IMRT dose can be estimated with a standard, static phantom QA measurement, provided the motion characteristics are independently known from 4D CT or otherwise. The motion-perturbed absolute dose estimates were validated by the direct planar diode array measurements, and were found to reliably agree with them in a homogeneous phantom.

Nelms, Benjamin E. [Canis Lupus LLC, Merrimac, Wisconsin 53561 (United States)] [Canis Lupus LLC, Merrimac, Wisconsin 53561 (United States); Opp, Daniel; Zhang, Geoffrey; Moros, Eduardo; Feygelman, Vladimir, E-mail: vladimir.feygelman@moffitt.org [Department of Radiation Oncology, Moffitt Cancer Center, Tampa, Florida 33612 (United States)] [Department of Radiation Oncology, Moffitt Cancer Center, Tampa, Florida 33612 (United States)

2014-06-15T23:59:59.000Z

415

Kinetic Energy Principle And Neoclassical Toroidal Torque In Tokamaks  

SciTech Connect (OSTI)

It is shown that when tokamaks are perturbed the kinetic energy principle is closely related to the neoclassical toroidal torque by the action invariance of particles. Especially when tokamaks are perturbed from scalar pressure equilibria, the imaginary part of the potential energy in the kinetic energy principle is equivalent to the toroidal torque by the Neoclassical Toroidal Viscosity (NTV). A unified description therefore should be made for both physics. It is also shown in this case that the potential energy operator can be self-adjoint and thus the stability calculation can be simplified by minimizing the potential energy

Jong-Kyu Park

2011-11-07T23:59:59.000Z

416

Infrared absorption spectroscopy and chemical kinetics of free radicals  

SciTech Connect (OSTI)

This research is directed at the detection, monitoring, and study of chemical kinetic behavior by infrared absorption spectroscopy of small free radical species thought to be important intermediates in combustion. During the last year, infrared kinetic spectroscopy using excimer laser flash photolysis and color-center laser probing has been employed to study the high resolution spectrum of HCCN, the rate constant of the reaction between ethynyl (C{sub 2}H) radical and H{sub 2} in the temperature region between 295 and 875 K, and the recombination rate of propargyl (CH{sub 2}CCH) at room temperature.

Curl, R.F.; Glass, G.P. [Rice Univ., Houston, TX (United States)

1993-12-01T23:59:59.000Z

417

Spectroscopy and kinetics of combustion gases at high temperatures  

SciTech Connect (OSTI)

This program involves two complementary activities: (1) development and application of cw ring dye laser absorption methods for sensitive detection of radical species and measurement of fundamental spectroscopic parameters at high temperatures; and (2) shock tube studies of reaction kinetics relevant to combustion. Species currently under investigation in the spectroscopic portion of the research include NO and CH{sub 3}; this has necessitated the continued operated at wavelengths in the range 210-230 nm. Shock tube studies of reaction kinetics currently are focussed on reactions involving CH{sub 3} radicals.

Hanson, R.K.; Bowman, C.T. [Stanford Univ., CA (United States)

1993-12-01T23:59:59.000Z

418

Kinetics of rapid reactions on nanometer catalyst particles  

Science Journals Connector (OSTI)

Steady-state kinetics of the practically important catalytic reaction 2A+B2?2AB (e.g., 2CO+O2 ? 2CO2 on Pt, Rh or Pd), occurring on nanometer supported catalyst particles, is analyzed by employing two schemes taking into account, respectively, (i) the interplay of the reaction on different facets of the catalyst particle and (ii) the possibility of adsorption of reactants on the support followed by diffusion to the catalyst. The results obtained demonstrate that the kinetics for these two cases can be remarkably different compared to those corresponding to the infinite surface.

V. P. Zhdanov and B. Kasemo

1997-02-15T23:59:59.000Z

419

A kinetic scheme for pressurized flows in non uniform pipes  

E-Print Network [OSTI]

The aim of this paper is to present a kinetic numerical scheme for the computations of transient pressurised flows in closed water pipes with variable sections. Firstly, we detail the derivation of the mathematical model in curvilinear coordinates under some hypothesis and we performe a formal asymptotic analysis. Then the obtained system is written as a conservative hyperbolic partial differential system of equations, and we recall how to obtain the corresponding kinetic formulation based on an upwinding of the source term due to the "pseudo topography" performed in a close manner described by Perthame and al.

Bourdarias, Christian; Gerbi, Stphane

2008-01-01T23:59:59.000Z

420

Kinetic modeling of the Townsend breakdown in argon  

SciTech Connect (OSTI)

Kinetic modeling of the Townsend breakdown in argon was performed in the forward-back approximation. The kinetic model was found to adequately describe the left branch of the Paschen curve, and the important role of ionization by fast ions and atoms near the cathode, as well as the increase in secondary emission coefficient in strong electric fields described in the literature, was confirmed. The modeling also showed that the electron energy distribution function develops a beam of high-energy electrons and that the runaway effect, i.e., the monotonic increase of the mean electron energy with the distance from the cathode, occurs at the left branch of the Paschen curve.

Macheret, S. O.; Shneider, M. N. [Department of Mechanical and Aerospace Engineering, Princeton University, D-414 Engineering Quadrangle, Princeton, New Jersey 08544 (United States)] [Department of Mechanical and Aerospace Engineering, Princeton University, D-414 Engineering Quadrangle, Princeton, New Jersey 08544 (United States)

2013-10-15T23:59:59.000Z

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


421

Fundamental kinetics of methane oxidation in supercritical water. Summary report  

SciTech Connect (OSTI)

Fundamental understanding of the oxidation of compounds in supercritical water is essential for the design, development and operation of a supercritical water oxidation unit. Previous work in our group determined the oxidation kinetics of carbon monoxide and ethanol in supercritical water for temperatures ranging from 400 to 540 C. Oxidation studies of methane up to 700 C have recently been completed and are presented in this report. Theoretical studies of fundamental kinetics and mechanistic pathways for the oxidation of methane in supercritical water are discussed. Application of current gas phase elementary reaction models are briefly presented and their limitations discussed.

Webley, P.A.; Tester, J.W. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemical Engineering

1989-05-22T23:59:59.000Z

422

Ground motion modeling of Hayward fault scenario earthquakes II:Simulation of long-period and broadband ground motions  

SciTech Connect (OSTI)

We simulate long-period (T > 1.0-2.0 s) and broadband (T > 0.1 s) ground motions for 39 scenarios earthquakes (Mw 6.7-7.2) involving the Hayward, Calaveras, and Rodgers Creek faults. For rupture on the Hayward fault we consider the effects of creep on coseismic slip using two different approaches, both of which reduce the ground motions compared with neglecting the influence of creep. Nevertheless, the scenario earthquakes generate strong shaking throughout the San Francisco Bay area with about 50% of the urban area experiencing MMI VII or greater for the magnitude 7.0 scenario events. Long-period simulations of the 2007 Mw 4.18 Oakland and 2007 Mw 4.5 Alum Rock earthquakes show that the USGS Bay Area Velocity Model version 08.3.0 permits simulation of the amplitude and duration of shaking throughout the San Francisco Bay area, with the greatest accuracy in the Santa Clara Valley (San Jose area). The ground motions exhibit a strong sensitivity to the rupture length (or magnitude), hypocenter (or rupture directivity), and slip distribution. The ground motions display a much weaker sensitivity to the rise time and rupture speed. Peak velocities, peak accelerations, and spectral accelerations from the synthetic broadband ground motions are, on average, slightly higher than the Next Generation Attenuation (NGA) ground-motion prediction equations. We attribute at least some of this difference to the relatively narrow width of the Hayward fault ruptures. The simulations suggest that the Spudich and Chiou (2008) directivity corrections to the NGA relations could be improved by including a dependence on the rupture speed and increasing the areal extent of rupture directivity with period. The simulations also indicate that the NGA relations may under-predict amplification in shallow sedimentary basins.

Aagaard, B T; Graves, R W; Rodgers, A; Brocher, T M; Simpson, R W; Dreger, D; Petersson, N A; Larsen, S C; Ma, S; Jachens, R C

2009-11-04T23:59:59.000Z

423

Green Growth in Motion: Sharing Korea's Experience | Open Energy  

Open Energy Info (EERE)

Green Growth in Motion: Sharing Korea's Experience Green Growth in Motion: Sharing Korea's Experience Jump to: navigation, search Tool Summary Name: Green Growth in Motion: Sharing Korea's Experience Agency/Company /Organization: Global Green Growth Institute (GGGI) Sector: Climate Focus Area: Renewable Energy, Economic Development, People and Policy Topics: Finance, Implementation, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment Resource Type: Case studies/examples Website: www.gggi.org/sites/www.gggi.org/files/research/GreenGrowthInMotion.pdf Country: South Korea Cost: Free Eastern Asia Coordinates: 35.907757°, 127.766922° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.907757,"lon":127.766922,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

424

CRITICAL FEATURES IN HUMAN MOTION SIMULATION FOR ERGONOMIC ANALYSIS  

E-Print Network [OSTI]

CRITICAL FEATURES IN HUMAN MOTION SIMULATION FOR ERGONOMIC ANALYSIS Matthew P. Reed, Don B. Chaffin of choice for assessments of the physical ergonomics of products and workplaces. Software representations important for ergonomic analysis. This paper identifies and justifies a set of these critical features

Faraway, Julian

425

Combining Skeletal Pose with Local Motion for Human Activity Recognition  

E-Print Network [OSTI]

challenge in modeling and inferring articulated human motion from video. However, recent developments on the dynamic poses. We demonstrate the representative power of dynamic pose over raw skeletal pose. Our results conclusively demonstrate that dynamic pose is a more powerful representation of human

Corso, Jason J.

426

Team-Driven Multi-Model Motion Tracking with Communication  

E-Print Network [OSTI]

. Communication im- proves the performance of a multi-agent system. The focus of this paper is to present our, such as a soccer robot grabbing a ball and passing it to a teammate, the motion model of the target relies seriously. However, communication improves the performance of such a multi-agent system [5]. When

Veloso, Manuela M.

427

Model for Brownian Motion in Soft-Jammed Systems  

Science Journals Connector (OSTI)

Brownian motion in soft-jammed systems (pastes) is directly described by taking into account the specific mechanical characteristics of the material surrounding the moving object. In particular we obtain explicit forms for the fluctuation-dissipation equation and the specific characteristics of diffusion through a soft-jammed system.

P. Coussot

2005-08-12T23:59:59.000Z

428

Switching Manipulator Control for Motion on Constrained Surfaces  

Science Journals Connector (OSTI)

We develop non-smooth motion controllers that enable a manipulator to perform surface tasks that do not involve force/torque interactions, while maintaining bounded joint rates. The robot's end-effector is first stabilized to a point close to the surface, ... Keywords: Non-smooth analysis, Robot navigation, Tracking

Xanthi Papageorgiou; Herbert G. Tanner; Savvas G. Loizou; Kostas J. Kyriakopoulos

2011-05-01T23:59:59.000Z

429

BWR ATWS mitigation by Fine Motion Control Rod  

SciTech Connect (OSTI)

Two main methods of ATWS mitigation in a SBWR are: fine Motion control Rods (FMCRD) and Boron injection via the Standby Liquid control System (SLCS). This study has demonstrated that the use of FMCRD along with feedwater runback mitigated the conditions due to reactivity insertion and possible ATWS in a BWR which is similar to SBWR.

Rohatgi, U.S.; Cheng, H.S.; Khan, H.; Mallen, A.; Diamond, D.

1994-03-01T23:59:59.000Z

430

Refined correlations between atmospheric and rapid polar motion excitations  

Science Journals Connector (OSTI)

......experiments, the atmospheric or geodetic excitation...a random number generator, and is regenerated...1990. Global water storage and polar...C.R., 1993. Atmospheric excitation computations...polar motion by atmospheric angular momentum...Global surface water-induced Rosen......

T. C. Stieglitz; S. R. Dickman

1999-10-01T23:59:59.000Z

431

Constraint-Based Motion Planning for Virtual Prototyping Maxim Garber  

E-Print Network [OSTI]

]: Computational Geometry and Object Modeling; I.6 [Computing Methodologies]: Simulation and Mod- eling General prototyping. Our approach trans- forms the motion planning problem into the simulation of a dy- namical system a collision free path. We demonstrate its effec- tiveness for parts removal, automated car painting

North Carolina at Chapel Hill, University of

432

Lattice Boltzmann simulations of contact line motion on uniform surfaces  

Science Journals Connector (OSTI)

Lattice Boltzmann simulations of three-dimensional drops spreading on a uniform solid surface will be discussed. It will be shown that, if the liquid-liquid interface is sufficiently thick, the contact line velocities obtained from the simulations agree ... Keywords: contact line motion, lattice Boltzmann method, wedge solution

Xinli Jia; J. B. McLaughlin; K. Kontomaris

2006-09-01T23:59:59.000Z

433

Ankle Strength and Stiffness Predict Range of Motion During  

E-Print Network [OSTI]

Ankle Strength and Stiffness Predict Range of Motion During Walking in Older Adults Erica D Persons, 2001) · Studies focusing on lower extremity vulnerability show weakness in the ankle dorsiflexors and lack of flexibility of ankle plantarflexors increase risk of falling. (Hylton, 2003) · Ankle stiffness

New Hampshire, University of

434

Functional neuroanatomy of biological motion perception in humans  

E-Print Network [OSTI]

Research Laboratory, Department of Biomedical Engineering and Neurology, 44 Cummington Street, Boston, MA in the recognition of ``biological motion'' defined by point-lights attached to the major joints and head of a human in the same ``point-lights'' display, and (ii) face-gender discrimina- tion, involving the discrimination

Vaina, Lucia M.

435

The Duffing Oscillator And Linearization Techniques For Its Motion Constants  

E-Print Network [OSTI]

constant is known, solving the system is no longer needed to analyze the characteristics of the system. Motion constants are time independent integrals that are hard to find for nonlinear dynamic systems. We chose the Duffing Oscillator as a higher order...

Rashdan, Mouath

2014-01-16T23:59:59.000Z

436

Motion detector suitable for detecting earthquakes and the like  

SciTech Connect (OSTI)

A motion detector device is described suitable for detecting vibrational tremors such as earthquakes comprising: an inertial mass, spring means comprising a spring barb oriented principally for motion along a horizontal axis and a coil spring oriented principally for motion along a vertical axis, means for resiliently supporting the inertial mass on the spring means for resilient motion along both the horizontal and vertical axes comprising means for anchoring the spring barb at one end thereof and means for connecting the coil spring between the other end of the spring barb and the inertial mass, the mass and spring means forming a resonant mechanical vibration circuit at a predetermined vibrational frequency corresponding to that of the vibrational tremor to be detected, spaced apart oppositely positioned electrical switching contact means connected to the spring means and the inertial mass respectively, the contact means being brought into switching contact with each other when the vibrational circuit is excited at the predetermined vibrational frequency, and alarm means connected to the switching means for providing an alarm signal when the contact means are brought into switching contact.

Windisch, D.E.

1987-09-01T23:59:59.000Z

437

Cretaceous Vertical Motion of Australia and the Australian-  

E-Print Network [OSTI]

of the SEIR be- tween 120° and 128°E, south of the Great Australian Bight (GAB), is characterized by ruggedCretaceous Vertical Motion of Australia and the Australian- Antarctic Discordance Michael Gurnis, R and the present-day distinctive geochemistry and geophysics of the Australian-Antarctic Discordance. The dynamic

Müller, Dietmar

438

Motion planning under uncertainty: application to an unmanned helicopter  

E-Print Network [OSTI]

A methodology is presented in this work for intelligent motion planning in an uncertain environment using a non-local sensor, like a radar sensor, that allows the sensing of the environment non-locally. This methodology is applied to an unmanned...

Davis, Joshua Daniel

2006-10-30T23:59:59.000Z

439

Branching Brownian motion with an inhomogeneous breeding potential  

E-Print Network [OSTI]

Branching Brownian motion with an inhomogeneous breeding potential J. W. Harris and S. C. Harris 1TW, U.K. email: john.harris@bristol.ac.uk. Supported by the Heilbronn Institute for Mathe- matical.K. email: s.c.harris@bath.ac.uk 1 #12;|y|p for p > 2, the population would almost surely explode

Harris, Simon Colin

440

From robotic arms to mobile manipulation: on coordinated motion schemes  

E-Print Network [OSTI]

From robotic arms to mobile manipulation: on coordinated motion schemes V. Padois , J.-Y. Fourquet. It is compared with the classical kinematic modelling of robotic arms. In particular, it is shown that many tools of organization are due to the inherently bounded workspace of classic robotic arms or auto- matic machines

Paris-Sud XI, Université de

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


441

FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION  

E-Print Network [OSTI]

CHAPTER 1 FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION MACHINES OF THE THIRD KIND Peter to a notion of staging free energy: the free energy invested in choreographing all the actors of a biochemical \\offprintinfo{(Title, Edition)}{(Author)} at the beginning of your document. 1 #12;2 FREE ENERGIES OF STAGING

Salamon, Peter

442

Motion of charged particles in ABC magnetic fields Alejandro Luque #  

E-Print Network [OSTI]

Motion of charged particles in ABC magnetic fields Alejandro Luque # Departament de Matem?? atica consequences of our study are the existence of confinement regions of charges near some magnetic lines, magnetic field, Hamiltonian dynamical system, el­ liptic equilibrium point, quasi­periodic solution

443

www.iop.org/journals/physed Teaching motion with the  

E-Print Network [OSTI]

and also demonstrated the utility of GPS and ICT. In this article we report on the various hands;Teaching motion with the Global Positioning System Figure 1. The freeware GPS Utility [5] enables users sentence or line inside the NMEA message, which might read: $GPGGA,190239.62,4603.9040,N, 01434.7951,E,1

Planin?iè, Gorazd

444

ATLAS: A NOVEL KINEMATIC ARCHITECTURE FOR SIX DOF MOTION PLATFORMS  

E-Print Network [OSTI]

ATLAS: A NOVEL KINEMATIC ARCHITECTURE FOR SIX DOF MOTION PLATFORMS M.J.D. HAYES Mechanical simulation required in many applications. This paper presents an overview of the Atlas platform: a novel six orienting device, called the Atlas sphere, on a gantry with three linear axes. The key to the design

Hayes, John

445

From the adiabatic piston to macroscopic motion induced by fluctuations  

E-Print Network [OSTI]

From the adiabatic piston to macroscopic motion induced by fluctuations J. Piasecki Institute. In the case of two infinite volume one­ dimensional ideal fluids separated by a piston whose mass is equal of the Boltzmann equation. It is shown that at equal pressures on both sides of the piston, the temperature

446

The fish tail motion forms an attached leading edge vortex  

Science Journals Connector (OSTI)

...research-article Research articles 1001 25 18 The fish tail motion forms an attached leading edge...of the most prominent characteristics of fishes, and the analysis of the flow pattern...this mechanism has not been reported in fish-like swimming probably owing to the overemphasis...

Iman Borazjani; Mohsen Daghooghi

2013-01-01T23:59:59.000Z

447

An adaptive framework for 'single shot' motion planning  

E-Print Network [OSTI]

will be performed in the same environment, then it may be useful to pre-process the environment with the goal of decreasing the difficulty of the subsequent queries. Examples are the roadmap motion planning methods, which build a graph encoding representative...

Jones, Christopher V

2013-02-22T23:59:59.000Z

448

Motion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory  

E-Print Network [OSTI]

Computing 3D reconstructions from X-ray projections is al- ready possible in some medical applications by Bayesian formalism as we want to handle either sparsely collected or limited-angle data, which are beyondMotion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory S. S

Brandt, Sami

449

Solar wind and the motion of dust grains  

Science Journals Connector (OSTI)

......we concentrated on the action of the solar wind on the motion of an IDP for cases when the variable flux of the solar wind energy and the non-radial solar wind velocity are considered. Particle erosion does not have a large influence on the......

J. Klacka; J. Petrzala; P. Pstor; L. Kmar

2012-04-01T23:59:59.000Z

450

Stochastic Conformational Roadmaps for Computing Ensemble Properties of Molecular Motion  

E-Print Network [OSTI]

for analyzing the motion pathways of molecules during vital biological processes, such as protein folding, or fold, into unique 3-D struc- tures called native folds. Protein folding plays a central role importance, the protein folding process remains a mystery. While it is traditionally studied through tedious

Pratt, Vaughan

451

Motion at High Speed Did you read chapter 7  

E-Print Network [OSTI]

fast is "high speed" 50 mph 225 mphp 550 mph 39,000 mph Speed of light: 670,000,000 mph Extends off/20,000 of the speed of li hlight All Motion is relative We must define a reference frame in which to measure/Morley experiment. Albert Michelson Conclusion: Light does not obey Galilean relativity! Relativity and the Speed

Hart, Gus

452

ORBITAL-FREE KINETIC-ENERGY DENSITY FUNCTIONAL THEORY  

E-Print Network [OSTI]

Chapter 5 ORBITAL-FREE KINETIC-ENERGY DENSITY FUNCTIONAL THEORY Yan Alexander Wang and Emily A Theory (DFT), there was the Thomas-Fermi (TF) model, which uses the electron density ¢¡ r£ (a function-dependent DFT Density-Functional Theory DI density-independent DM1 first-order reduced density matrix EDF energy

Wang, Yan Alexander

453

AER1301: KINETIC THEORY OF GASES Assignment #2  

E-Print Network [OSTI]

AER1301: KINETIC THEORY OF GASES Assignment #2 1. Using the formalism of the text book is as follows. Assume that the particle number density is a slowly varying function of the z coordinate #27; ? is a constant. 3. Show that if the potential function, U(r), varies as 1=r 4

Groth, Clinton P. T.

454

AER1301: KINETIC THEORY OF GASES Assignment #2  

E-Print Network [OSTI]

AER1301: KINETIC THEORY OF GASES Assignment #2 1. Using the formalism of the text book the particle number density and temperature are both slowly varying functions of the z coordinate of the previous problem is as follows. Assume that the particle number density is a slowly varying function

Groth, Clinton P. T.

455

Kinetic roughening during rare-gas homoepitaxy E. Nabighian,1  

E-Print Network [OSTI]

Kinetic roughening during rare-gas homoepitaxy E. Nabighian,1 M. C. Bartelt,2 and X. D. Zhu1,* 1 roughening, which accounts for deviations from layer- by-layer growth, is generally very sensitive substrates; see e.g., Ref. 3. A quantitative assessment of the way in which rare-gas multilayer films roughen

Zhu, Xiangdong

456

Pyrolysis of automotive shredder residues: a lumped kinetic characterization  

Science Journals Connector (OSTI)

A lumped kinetic model for the pyrolysis of industrial wastes of unknown chemical composition is developed. The model is applied to the pyrolysis of automotive shredder residues (ASRs), studied by means of thermogravimetric and calorimetric analyses, in isothermal and non-isothermal conditions.

Oreste Patierno; Paola Cipriani; Fausto Pochetti; Massimiliano Giona

1998-01-01T23:59:59.000Z

457

Desorption Kinetics of Methanol, Ethanol, and Water from Graphene  

SciTech Connect (OSTI)

The desorption kinetics of methanol, ethanol, and water from graphene covered Pt(111) are investigated. The temperature programmed desorption (TPD) spectra for both methanol and ethanol have well-resolved first, second, third, and multilayer layer desorption peaks. The alignment of the leading edges is consistent with zero-order desorption kinetics from all layers. In contrast, for water the first and second layers are not resolved. At low water coverages (< 1 ML) the initial desorption leading edges are aligned but then fall out of alignment at higher temperatures. For thicker water layers (10 to 100 ML), the desorption leading edges are in alignment throughout the desorption of the film. The coverage dependence of the desorption behavoir suggests that at low water coverages the non-alignment of the desorption leading edges is due to water dewetting from the graphene substrate. Kinetic simulations reveal that the experimental results are consistent with zero-order desorption. The simulations also show that fractional order desorption kinetics would be readily apparent in the experimental TPD spectra.

Smith, R. Scott; Matthiesen, Jesper; Kay, Bruce D.

2014-09-18T23:59:59.000Z

458

Supercooled water and the kinetic glass transition F. Sciortino,1  

E-Print Network [OSTI]

-dynamics study of the self-dynamics of water molecules in deeply supercooled liquid states. We find the superheated, stretched, and supercooled states of liquid water 4­6 ; ii the existence of a meta- stable, lowSupercooled water and the kinetic glass transition F. Sciortino,1 P. Gallo,2 P. Tartaglia,1 and S

Sciortino, Francesco

459

Linear Kinetic Heat Transfer: Moment Equations, Boundary Conditions, and Knudsen  

E-Print Network [OSTI]

] and phonons [6], and the radiative transfer equation [7]. The solution of any kinetic equation is usually][25], radiative transfer [7][26], and phonon transport in crystals [6]. Despite the long history, and success method, and the methods employed in [18][19][20], are based solely on the transport equations in the bulk, and

Struchtrup, Henning

460

Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate  

SciTech Connect (OSTI)

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran et al. for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO{sub 2} production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels.

Herbinet, O; Pitz, W J; Westbrook, C K

2007-09-20T23:59:59.000Z

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


461

Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate  

SciTech Connect (OSTI)

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran et al. for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO2 production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels.

Herbinet, O; Pitz, W J; Westbrook, C K

2007-09-17T23:59:59.000Z

462

Plasmadynamics and ionization kinetics of thermionic energy conversion  

SciTech Connect (OSTI)

To reduce the plasma arc-drop, thermionic energy conversion is studied with both analytical and numerical tools. Simplifications are made in both the plasmadynamic and ionization-recombination theories. These are applied to a scheme proposed presently using laser irradiation to enhance the ionization kinetics of the thermionic plasma and thereby reduce the arc-drop. It is also predicted that it is possible to generate the required laser light from a thermionic-type cesium plasma. The analysis takes advantage of theoretical simplifications derived for the ionization-recombination kinetics. It is shown that large laser ionization enhancements can occur and that collisional cesium recombination lasing is expected. To complement the kinetic theory, a numerical method is developed to solve the thermionic plasma dynamics. To combine the analysis of ionization-recombination kinetics with the plasma dynamics of thermionic conversion, a finite difference computer program is constructed. It is capable of solving for both unsteady and steady thermionic converter behavior including possible laser ionization enhancement or atomic recombination lasing. A proposal to improve thermionic converter performance using laser radiation is considered. In this proposed scheme, laser radiation impinging on a thermionic plasma enhances the ionization process thereby raising the plasma density and reducing the plasma arc-drop. A source for such radiation may possibly be a cesium recombination laser operating in a different thermionic converter. The possibility of this being an energy efficient process is discussed. (WHK)

Lawless, J.L. Jr.; Lam, S.H.

1982-02-01T23:59:59.000Z

463

Kinetic Properties of Alfven Modes in Tokamak Plasmas  

SciTech Connect (OSTI)

The ability to predict the stability of fast-particle-driven Alfven eigenmodes in burning fusion plasmas requires a detailed understanding of the dissipative mechanisms that damp these modes. In order to address this question, the linear gyro-kinetic, electromagnetic code LIGKA is employed to investigate their behaviour in realistic tokamak geometry. The eigenvalue formulation of LIGKA allows to calculate self-consistently the coupling of large-scaled MHD modes to the gyroradius scale-length kinetic Alfven waves. Therefore, the properties of the kineticly modified TAE mode in or near the gap (KTAE, radiative damping or 'tunnelling') and its coupling to the continuum close to the edge can be analysed numerically. In addition, an antenna-like version of LIGKA allows for a frequency scan, analogous to an external antenna.The model and the implementation of LIGKA were recently extended in order to capture the coupling of the shear Alfven waves to the sound waves. This coupling becomes important for the investigation of kinetic effects on the low-frequency phase of cascade modes, where e.g. geodesic acoustic effects play a significant role.

Lauber, Ph.; Guenter, S.; Bruedgam, M. [Max-Planck-Institut fuer Plasmaphysik, EURATOM-Association, D-85748 Garching (Germany); Koenies, A. [Max-Planck Institut fuer Plasmaphysik, EURATOM-Association, D-17489 Greifswald (Germany); Pinches, S. D. [UKAEA Fusion Association Culham Science Centre, Abingdon, Oxfordshire OX143DB (United Kingdom)

2006-11-30T23:59:59.000Z

464

On a diffusionkinetic equation arising in extended kinetic theory  

E-Print Network [OSTI]

describe phenomena occurring in the neutron and electron transport in gases and are relevant to scattering of a linear Boltzmann equation with inelastic scattering term. An interesting feature of this equation of the kinetic theory. Key words: evolution equations, positive semigroups, inelastic scattering, singular

Louisiana State University

465

Hydrogen pickup measurements in zirconium alloys: Relation to oxidation kinetics  

E-Print Network [OSTI]

Hydrogen pickup measurements in zirconium alloys: Relation to oxidation kinetics Adrien Couet a to reduce hydrogen pickup during operation, and the associated cladding degradation. The present study focuses on precisely and accurately measuring hydrogen pickup fraction for a set of alloys to specifically

Motta, Arthur T.

466

Optimization of a Microfluidic Mixer for Studying Protein Folding Kinetics  

E-Print Network [OSTI]

Optimization of a Microfluidic Mixer for Studying Protein Folding Kinetics David E. Hertzog with numerical simulations to minimize the mixing time of a microfluidic mixer developed for protein folding reported continuous flow mixer for protein folding. Fast events in protein folding often occur

Santiago, Juan G.

467

Femtomole Mixer for Microsecond Kinetic Studies of Protein Folding  

E-Print Network [OSTI]

Femtomole Mixer for Microsecond Kinetic Studies of Protein Folding David E. Hertzog,, Xavier a microfluidic mixer for studying protein folding and other reactions with a mixing time of 8 µs and sample) measurements of single-stranded DNA. We also demon- strate the feasibility of measuring fast protein folding

Michalet, Xavier

468

Statistical Analysis of Protein Folding Kinetics Aaron R. Dinner  

E-Print Network [OSTI]

Statistical Analysis of Protein Folding Kinetics Aaron R. Dinner , Sung-Sau So ¡ , and Martin and theoretical studies over several years have led to the emergence of a unified general mechanism for protein folding that serves as a framework for the design and interpretation of research in this area [1

Dinner, Aaron

469

Kinetic Controls on Cu and Pb Sorption by Ferrihydrite  

E-Print Network [OSTI]

Kinetic Controls on Cu and Pb Sorption by Ferrihydrite A N D R E A S C . S C H E I N O and time, Cu and Pbwereboundtotheferrihydritesurfacebyformationofedge- sharing inner-sphere sorption limiting the slow sorption process. The quantification of diffusion-limited surface sites in soils

Sparks, Donald L.

470

Nano Research Kinetics of Molecular Recognition Mediated Nanoparticle  

E-Print Network [OSTI]

Nano Research Kinetics of Molecular Recognition Mediated Nanoparticle Self-Assembly Chinmay Soman1 the streptavidin-biotin interaction [9] 0078 Nano Res (2009) 2: 78 84 DOI 10.1007/s12274-009-9005-z Research Article #12;79Nano Res (2009) 2: 78 84 are incubated with specific antigens in a physiological buffer

471

A fully nonlinear, dynamically consistent numerical model for solid-body ship motion. I. Ship motion with fixed heading  

Science Journals Connector (OSTI)

...surface and the buoyancy effect from the underwater volume of the actual ship hull with a hybrid finite-difference...strongly nonlinear effects in ship motion; and (iii...Kuang2007Modeling the effects of ship appendages on the six-degree...

2011-01-01T23:59:59.000Z

472

Exploring Frontiers in Kinetics and Mechanisms of Geochemical Processes at the Mineral/Water Interface  

E-Print Network [OSTI]

Exploring Frontiers in Kinetics and Mechanisms of Geochemical Processes at the Mineral in the Earth's Critical Zone is the kinetics. The timescales for geochemical processes range from milliseconds geochemical processes including surface complexation, mineral transformations, and oxidation

Sparks, Donald L.

473

Microfluidic systems for chemical kinetics that rely on chaotic mixing in droplets  

Science Journals Connector (OSTI)

...system is particularly appropriate for chemical kinetics and biochemical assays. The...required. 9. Using the microfluidic platform to measure kinetics This plug-based...Press. Ottino, J. M. 1994 Mixing and chemical-reactions--a tutorial. Chem. Engng...

2004-01-01T23:59:59.000Z

474

Dynamics and kinetic roughening of interfaces in two-dimensional forced wetting  

Science Journals Connector (OSTI)

We consider the dynamics and kinetic roughening of wetting fronts in the case of......, which separates two regimes of dissipative behavior and governs the kinetic roughening of the interfaces by giving an upper...

T. Laurila; C. Tong; I. Huopaniemi

2005-08-01T23:59:59.000Z

475

Kinetic Roughening in Deposition with Suppressed Screening Peter Nielaba a and Vladimir Privman b  

E-Print Network [OSTI]

Kinetic Roughening in Deposition with Suppressed Screening Peter Nielaba a and Vladimir Privman b: 68.10.Jy, 82.20.Wt -- 1 -- #12; The standard, KPZ [1] model of kinetic roughening of growing surfaces

476

A comparison of the point kinetics equations with the QUANDRY analytic nodal diffusion method  

E-Print Network [OSTI]

The point kinetics equations were incorporated into QUANDRY, a nuclear reactor analysis computer program which uses the analytic nodal method to solve the neutron diffusion equation. Both the point kinetics equations, solved using the IMSL MATH...

Velasquez, Arthur

2012-06-07T23:59:59.000Z

477

Rheological response and dynamics of the amphiphilic diamond phase from kinetic latticeBoltzmann simulations  

Science Journals Connector (OSTI)

...diamond phase from kinetic lattice-Boltzmann simulations R.S. Saksena...are performed using a kinetic lattice-Boltzmann method. Lyotropic liquid crystals...studied previously using our lattice-Boltzmann (LB) approach (Gonzalez-Segredo...

2009-01-01T23:59:59.000Z

478

Thermal kinetics of montmorillonite nanoclay/maleic anhydride-modified polypropylene nanocomposites  

Science Journals Connector (OSTI)

Thermal kinetics of montmorillonite nanoclay (MMT)/maleic anhydride-modified polypropylene (MAH ... and crystallization kinetics. The effects of MMT nanoclay on the thermal stability of PP in ... was significantl...

Henry Kuo Feng Cheng; Nanda Gopal Sahoo

2012-07-01T23:59:59.000Z

479

Crystallization Kinetics and Excess Free Energy of H2O and D2O...  

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

Crystallization Kinetics and Excess Free Energy of H2O and D2O Nanoscale Films of Amorphous Solid Water. Crystallization Kinetics and Excess Free Energy of H2O and D2O Nanoscale...

480

Esterification kinetics of triglycerides in n-hexane catalyzed by an immobilized lipase  

E-Print Network [OSTI]

The kinetics of enzyme-catalyzed esterification of triglycerides over immobilized lipase in n-hexane was investigated. The reaction kinetics were described in terms of a mechanism developed following the Langmuir-Hinshelwood-Hougen-Watson (LHHW...

Gomez Ruiz, Alejandro

2012-06-07T23:59:59.000Z

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


481

Adsorption kinetics taking account of the interaction of nearest and next-nearest neighbors  

SciTech Connect (OSTI)

A study was carried out on the effect of the interaction between nearest and next-nearest neighbors on adsorption and desorption kinetics. The interaction effect on the adsorption kinetics is much stronger than on the desorption kinetics. The suitability of an adsorption model taking account of the two nearest neighbors for describing the experimental data was examined. The effect of taking account of the ordering of adatoms on desorption kinetics was shown for the case of 2 x 2 super-structure.

Tovbin, Yu.K.; Surovtsev, S.Yu.

1986-04-01T23:59:59.000Z

482

Macromol. Chem. Phys. 2001, 202, 775784 775 Kinetics of the Thermal and Thermo-Oxidative  

E-Print Network [OSTI]

, respectively. #12;776 J. D. Peterson, S. Vyazovkin, C. A. Wight mer degradation kinetics may require developing

Utah, University of

483

The translation of turbulent wind energy to individual corn plant motion during senescense  

Science Journals Connector (OSTI)

Wind flow within inflexible plant canopies is turbulent and leads to an oscillatory motion of individual plants. A study was conducted to describe the motion of corn (Zea mays...L.) stalks in the wind using a tra...

T. K. Flesch; R. H. Grant

1991-04-01T23:59:59.000Z

484

Accepted Manuscript Kinetic Modelling of High Density PolyEthylene Pyrolysis: Part 1. Comparison of  

E-Print Network [OSTI]

Accepted Manuscript Kinetic Modelling of High Density PolyEthylene Pyrolysis: Part 1. Comparison this article as: Gascoin N, Navarro-Rodriguez A, Gillard P, Mangeot A, Kinetic Modelling of High Density PolyEthylene.polymdegradstab.2012.05.008 #12;M ANUSCRIPT ACCEPTED ACCEPTED MANUSCRIPT 1 Kinetic Modelling of High Density PolyEthylene

Paris-Sud XI, Université de

485

A parametric sensitivity study of entropy production and kinetic energy dissipation using the FAMOUS AOGCM  

E-Print Network [OSTI]

A parametric sensitivity study of entropy production and kinetic energy dissipation using of APE and entropy production associated with kinetic energy dissipation, with the standard FAMOUS values of the conjecture of maximum APE production (or equivalently maximum dissipation of kinetic energy). Keywords

Ambaum, Maarten

486

On Measuring the Terms of the Turbulent Kinetic Energy Budget from an AUV LOUIS GOODMAN  

E-Print Network [OSTI]

of production of turbulent kinetic energy (TKE). Heat flux is obtained by correlating the vertical velocityOn Measuring the Terms of the Turbulent Kinetic Energy Budget from an AUV LOUIS GOODMAN School of the steady-state, homogeneous turbulent kinetic energy budgets are obtained from mea- surements of turbulence

Goodman, Louis

487

COPPER-UPTAKE KINETICS OF COASTAL AND OCEANIC DIATOMS1 , Amber L. Annett3  

E-Print Network [OSTI]

COPPER-UPTAKE KINETICS OF COASTAL AND OCEANIC DIATOMS1 Jian Guo2 , Amber L. Annett3 , Rebecca L We investigated copper (Cu) acquisition mecha- nisms and uptake kinetics of the marine diatoms organic Cu complexes. Key index words: copper; Cu; diatom; Fe; iron; kinetics; Thalassiosira; transport

488

Using Stochastic Roadmap Simulation to Predict Experimental Quantities in Protein Folding Kinetics: Folding Rates and  

E-Print Network [OSTI]

Using Stochastic Roadmap Simulation to Predict Experimental Quantities in Protein Folding Kinetics for studying protein folding kinetics. It uses the recently intro- duced Stochastic Roadmap Simulation (SRS validate the SRS method and indicate its potential as a general tool for studying protein folding kinetics

Pratt, Vaughan

489

Inference of Performer Artistic Skill from Artistic Pose Features in Motion Capture Data  

E-Print Network [OSTI]

data was captured directly into Autodesk Motion Builder, andthen processed in Autodesk Maya to a normalized skeleton

Maraffi, Christopher

2014-01-01T23:59:59.000Z

490

Musculoskeletal simulation model generation from MRI datasets and motion capture data  

E-Print Network [OSTI]

Musculoskeletal simulation model generation from MRI datasets and motion capture data Jérôme Schmid

Paris-Sud XI, Université de

491

motions, langage et prises de dcision : un rseau cognitif Bernard Cadet,  

E-Print Network [OSTI]

et Tabasco, 1992 ; Wierzbicka, 1992, 1995 ; Bamberg ; 1996) conçoivent les émotions comme relevant

Paris-Sud XI, Université de

492

En Neo | Open Energy Information  

Open Energy Info (EERE)

Neo Jump to: navigation, search Name: En-Neo Place: Germany Sector: Services, Wind energy Product: En-Neo's profile of services includes development, planning, construction and...

493

Friction, Brownian Motion, and Energy Dissipation Mechanisms in Adsorbed  

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

Friction, Brownian Motion, and Energy Dissipation Mechanisms in Adsorbed Friction, Brownian Motion, and Energy Dissipation Mechanisms in Adsorbed Molecules and Molecularly Thin Films: Heating, Electrostatic and Magnetic Effects January 15, 2014 4:00PM to 5:00PM Presenter Jacqueline Krim, North Carolina State University Location Building 440, Room A105-106 Type Seminar Series NST Nanoscience Colloquium Abstract: In the study of friction at the nanoscale, phononic, electrostatic, conduction electron and magnetic effects all contribute to the dissipation mechanisms [1,2]. Electrostatic and magnetic contributions are increasingly alluded to in the current literature, but remain poorly characterized. I will first overview the nature of these various contributions, and then report on our observations of magnetic and electrostatic contributions to

494

Motion of Robert G. Burnley, Director the Commonwealth of Virginia  

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

of Robert G. Burnley, Director the Commonwealth of Virginia of Robert G. Burnley, Director the Commonwealth of Virginia Department of Environmental Quality to Deny the District of Columbia Public Service Commission's Petition Further Analysis of Environmental Impacts of Requested Relief Motion of Robert G. Burnley, Director the Commonwealth of Virginia Department of Environmental Quality to Deny the District of Columbia Public Service Commission's Petition Further Analysis of Environmental Impacts of Requested Relief Docket No. EO-05-01: Motion of Robert G. Burnley, Director the Commonwealth of Virginia Department of Environmental Quality to Deny the District of Columbia Public Service Commission's Petition on the Grounds that the Commission May Not Lawfully Grant the Requested Relief; or, in the Alternative, to Defer Action Pending Further Analysis of Environmental

495

Historical Information H. 6 SeismicIGround Motion Activity  

Office of Legacy Management (LM)

6 SeismicIGround Motion 6 SeismicIGround Motion Activity Book 3 The Effects of the Rulison Event on Buildings and Other Surface Structures DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. I I .* ,a - . . > - . ~ - ..+<#z*:<~:<:~.:$:.y;.$3s, 3898 OFF THE EFFECTS OF THE RULISON EVENT ON BUILDINGS AND OTHER SURFACE STRUCTURES Lloyd A. Lee and Roger E. Skjei January 14, 1970 John A. Blume & Associates Research Division San Francisco, California ORDER FROM CFSTl AS-!&L~L-~~ This page intentionally left blank THE EFFECTS OF THE RULISON EVENT ON BUILDINGS AND 'OTHER SURFACE STRUCTURES Lloyd A . Lee and Roger E. S k j e i John A. Blume & A s s o c i a t e s Research D i v i s i o n

496

Characterization of Slow Orbit Motion in the SPEAR3  

SciTech Connect (OSTI)

SPEAR3 is a third-generation synchrotron light source storage ring. The beam stability requirements are {approx}10% of the beam size, which is about 1 micron in the vertical plane. Hydrostatic level system (HLS) measurements show that the height of the SPEAR3 tunnel floor varies by tens of microns daily. We present analysis of the HLS data, including accounting for common-mode tidal motion. We discuss the results of experiments done to determine the primary driving source of ground motion. We painted the accelerator tunnel walls white; we temporarily installed Mylar over the asphalt in the center of the accelerator; and we put Mylar over a section of the tunnel walls.

Sunilkumar, Nikita; /Southern California U.; Gassner, Georg; /SLAC; Safranek, James; /SLAC; Yan, Yiton; /SLAC

2012-07-09T23:59:59.000Z

497

Reformed Solitary Kinetic Alfvn Waves due to Dissipations and Auroral Electron Acceleration  

Science Journals Connector (OSTI)

The physical nature of the auroral electron acceleration has been an outstanding problem in space physics for decades. Some recent observations from the auroral orbit satellites, FREJA and FAST, showed that large amplitude solitary kinetic Alfvn waves (SKAWs) are a common electromagnetic active phenomenon in the auroral magnetosphere. In a low- (i.e., ) plasma, the drift velocity of electrons relative to ions within SKAWs is much larger than thermal velocities of both electrons and ions. This leads to instabilities and causes dissipations of SKAWs. In the present work, based on the analogy of classical particle motion in a potential well, it is shown that a shock-like structure can be formed from SKAWs if dissipation effects are included. The reformed SKAWs with a shock-like structure have a local density jump and a net field-aligned electric potential drop of order of over a characteristic width of several . As a consequence, the reformed SKAWs can efficiently accelerate electrons field-aligned to the order of the local Alfvn velocity. In particular, we argue that this electron acceleration mechanism by reformed SKAWs can play an important role in the auroral electron acceleration problem. The result shows that not only the location of acceleration regions predicted by this model is well consistent with the observed auroral electron acceleration region of above the auroral ionosphere, but also the accelerated electrons from this region can obtain an energy of several keV and carry a field-aligned current of several which are comparable to the observations of auroral electrons.

Wu De-Jin; Chao Jih-Kwin; Lee Luo-Chuan; Feng Xue-Shang

2001-01-01T23:59:59.000Z

498

Automatic Partitioning of High Dimensional Search Spaces associated with Articulated Body Motion Capture  

E-Print Network [OSTI]

with today's powerful off-the-shelf PC's, cost-effective and real- time markerless human motion capture has not scale to the problem of Human Motion Capture (HMC) because of the large num- ber of degrees of freedom algorithm's implementation and then apply it to the considerably more complex problem of Human Motion Cap

Oxford, University of

499

A Comparison of Unscented and Extended Kalman Filtering for Estimating Quaternion Motion  

E-Print Network [OSTI]

. However, its effectiveness for improving human motion tracking for virtual reality applications filtering, human motion tracking, quaternions, virtual reality I. INTRODUCTION Accurate human motion is a powerful nonlinear estimation technique and has been shown to be a superior alternative to the EKF

Pattanaik, Sumanta N.

500

SaVE: sensor-assisted motion estimation for efficient h.264/AVC video encoding  

Science Journals Connector (OSTI)

Motion estimation is a key component of modern video encoding and is very compute-intensive. We present a novel Sensor-assisted Video Encoding (SaVE) method to reduce the computational complexity of motion estimation in H.264/AVC encoders, leveraging ... Keywords: H.264/AVC, MPEG, accelerometer, digital compass, motion estimation, sensor, video encoding

Xiaoming Chen; Zhendong Zhao; Ahmad Rahmati; Ye Wang; Lin Zhong

2009-10-01T23:59:59.000Z