Results 141 to 150 of about 1,520,654 (198)

Downwash-velocity potential method for oscillating surfaces.

AIAA Journal, 1973
The application of the downwash-velocity potential method to the case of oscillating surfaces is developed, and calculated forces are given on rectangular airfoils of aspect ratio two rotating about midchord in subsonic flows. These are compared with other results published in the literature for reduced frequencies up to nine-tenths, and for Mach ...
Haviland, John Kenneth, Yoo, Young Sik
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Elastic-Wave Velocities and Liquefaction Potential

Geotechnical Testing Journal, 1984
Abstract Cyclic triaxial liquefaction tests are used to establish a direct relationship between liquefaction resistance and shear- or compressive-wave velocities in saturated sand. Transducers for generating and receiving elastic waves have been built into the end caps of a triaxial specimen, producing a 3500-Hz shear wave and a 150-kHz ...
PD Alba, K Baldwin, V Janoo, G Roe, B Celikkol   +4 more
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On Integrable Hamiltonians with Velocity Dependent Potentials

Celestial Mechanics and Dynamical Astronomy, 2004
The author considers two-dimensional Hamiltonian systems with generalized Hamiltonian function (with velocity-dependent potentials). The purpose is to reinvestigate such systems trying to identify those admitting the existence of a polynomial in the momenta which is an independent second invariant both at arbitrary and fixed values of the known first ...
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Interatomic potentials from velocity-changing collision kernels

Physical Review A, 1991
Measurements of velocity-changing collision kernels have recently been reported. Here we describe the results of calculations which demonstrate that interatomic potentials can accurately be derived from such data. It is important to analyze the kernel directly in terms of an interatomic potential and not in terms of a traditional energy-averaged ...
, Gibble, , Cooper
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Extended Velocity Potential Wave Kinematics

Journal of the Waterway, Port, Coastal and Ocean Division, 1981
A double Fourier series expansion of the velocity potential for water waves was used to treat nonlinear single harmonic waves and irregular waves measured in the ocean test structure experiment. The (extended) velocity potential (EXVP) satisfies the governing hydrodynamic equations in the body of the water and matches the boundary conditions at the ...
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Analytical Solutions for Velocity-Dependent Nuclear Potentials

Physical Review, 1962
The two-nucleon potential, with the necessary invariance requirements, is assumed to be a quadratic function of momentum: $v=\ensuremath{-}{V}_{0}{J}_{1}(r)\ensuremath{-}(\frac{\ensuremath{\lambda}}{M}) \mathrm{p}\ifmmode\cdot\else\textperiodcentered\fi{}{J}_{2}(r)\mathrm{p}$, where ${J}_{1}(r)$ and ${J}_{2}(r)$ are two short-range functions.
Razavy, M., Field, G., Levinger, J. S.
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Relationship between Velocity-Dependent Potentials and Hard-Core Potentials

Physical Review, 1962
>It is shown that, outside the range of the velocity dependence, the two- body wave function resulting from a repulsive velocity-dependent force is exactly the same as that produced by an angular-momentum dependent potential outside a hard core, (auth)
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Displacement and Velocity Potentials

2001
The projected Newton-Euler equations (3.76) from Chapter 3 do not yet provide a complete description of the dynamics of the multibody system, because some force laws connecting the external forces f with the system’s state (q, u) are still missing. The topic of this chapter is thus to introduce a certain class of force laws, broad enough to cover most ...
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Peripheral sympathetic conduction velocity calculated from surface potentials

Electroencephalography and Clinical Neurophysiology, 1985
A simple, non-invasive and well tolerated technique is described for measuring autonomic nerve conduction velocity (ANCV) using proximal and distal peripheral autonomic surface potential (PASP) recordings. ANCV were obtained in 90% of subjects, and are comparable to values measured by intraneural recording.
T J, Day, D, Offerman, S, Bajada
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Somatosensory-evoked potentials and perception of skin velocity

Archiv f�r Psychiatrie und Nervenkrankheiten, 1980
Mechanical ramp indentations of constant amplitude and randomized velocities to the finger tip of human subjects were used to adequately stimulate the rapidly adapting Meissner corpuscles. The somatosensory-evoked potentials and the subjects' estimations were simultaneously recorded and analyzed off-line. The magnitude of perception showed a nonlinear,
D, Johnson, R, Jürgens, H H, Kornhuber
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