Results 251 to 260 of about 17,865,208 (292)

Dielectric polarization in non-uniform fields

Journal of Molecular Structure, 1982
Abstract A fluid system containing non-polarizable molecules with a general charge distribution interacting with a static non-uniform field is investigated. The invariance of the dielectric polarization to the arbitrary choice of molecular origin is demonstrated.
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Effect of electric field non-uniformity on droplets coalescence

Physical Chemistry Chemical Physics, 2016
Electric field assisted coalescence is one of the most efficient methods for water-in-oil emulsion separation.
Shirui, Luo, Jarrod, Schiffbauer, Tengfei, Luo   +2 more
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The acoustic field in non-uniform layers

Journal of Sound and Vibration, 1975
The numerical solution of field problems with non-uniform media requires fidelity in the conversion of the mathematical description from continuous to discrete followed by efficient and accurate performance of the ensuing calculations. Here, the conversion process into a matrix equation has been accomplished with minimized distortion to the continuous ...
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Determining motion fields under non-uniform illumination

Pattern Recognition Letters, 1995
Abstract Two realistic methods based on a generalized conservation equation of image brightness are proposed for the accurate determination of motion fields under non-uniform illumination. The conservation equation includes spatial and temporal derivatives of image brightness, a motion vector and a rate of brightness generation.
Atsushi Nomura, Hidetoshi Miike, Kazutoshi Koga   +2 more
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NMR Images Produced in a Substantially Non‐Uniform Field

Australasian Radiology, 1985
SUMMARYNMR images of distinct sections through a three‐dimensional phantom were obtained using steady magnetic fields much less uniform than those generally considered necessary for NMR imaging, but whose substantial gradient served to define the slices to be imaged.
M, Braun, A L, McCarthy
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Neocognitron with Non-uniform Receptive Fields

1993
The neocognitron is a hierarchical neural network model, which is capable of deformation-resistant pattern recognition. In the conventional neocognitron, each cell has a uniform receptive field. In other words, all parts within a receptive field have the same characteristics.
Kunihiko Fukushima, Masato Okada, Kouichirou Yamauchi, Michihiro Ohno, Kazuhito Hiroshige   +4 more
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Effects of Non-Uniform Crosswind Fields on Scintillometry Measurements

Boundary-Layer Meteorology, 2011
The effects of a non-uniform wind field along the path of a scintillometer are investigated. Theoretical spectra are calculated for a range of scenarios where the crosswind varies in space or time and compared to the ‘ideal’ spectrum based on a constant uniform crosswind.
Ward, H.C., Evans, J.G., Grimmond, C.S.B.   +2 more
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The implications of non-uniformity in fields-of-view of commonly used field spectroradiometers

2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
Accurately determining the field-of-view (FOV) is a basic requirement in photogrammetry and imaging spectroscopy but has rarely been considered in detail in field spectroscopy where the specifications for different spectroradiometers generally lack clarity or detail.
Alasdair A. MacArthur, Christopher J. MacLellan, Timothy J. Malthus   +2 more
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Magnetic resonance imaging with non-uniform fields

Physics in Medicine and Biology, 1986
Various methods have been used to recover NMR images with non-uniform magnetic fields. The authors describe a new method which recovers the image, and an exact solution for the spatially dependent magnetic inhomogeneities from data obtained from commonly used direct Fourier transform pulse-gradient sequences, at a negligible cost of extra computation.
E Feig, F Greenleaf, M Perlin
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Droplet Dynamics in a Non-uniform Flow Field

Combustion Science and Technology, 1991
Abstract The present paper describes research to determine the lift and drag forces on a single heptane droplet in a non-uniform flow field over a range of Reynolds numbers of 1-30. Experiments are described for droplels (90-320μm) entering a jet of air (≈ 1 m/s) and fallowing unsteady curvilinear trajectories (for which few experimental studies and no
G. T. LINTERIS, P. A. LIBBY, F. A. WILLIAMS   +2 more
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