Results 211 to 220 of about 227,228 (264)

A photoelectric phase displacement transducer

Measurement Techniques, 1991
The principle of operation of a PPDT constructed on the basis of an MP consists in the fact that the light flux from the radiation source passes through an optical system which forms, on the working surface of the MP, a narrow streak which intersects all of the discrete photosensitive tracks (DPT) of the MP such that the active resistance between the ...
A. V. Kosinskii, A. E. Popov, A. A. Kholomonov   +2 more
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Statistical and phase properties of displaced Kerr states

Physical Review A, 1991
We study the statistical and phase properties of the output states of a Mach-Zehnder interferometer with a nonlinear Kerr medium in one of its arms. The combination of nonlinearity and displacement produced by the interferometer generates output states (displaced Kerr states) that, unlike those derived from a Kerr medium alone (Kerr states), do not ...
, Wilson-Gordon, , Buek, , Knight
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Displacive phase transformations in solids

Journal of the Mechanics and Physics of Solids, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Two-phase displacement of non-newtonian fluid

Applied Mathematics and Mechanics, 1983
This paper considers the problem of non-Newtonian oil displacement by water in porous media, adopting the linear permeation law with initial pressure gradient. For one-dimensional flow, the basic equation of non-Newtonian oil displacement by water in sandstone reservoirs and fractured reservirs is derived and numerical solutions are obtained.
Chen, Lilian, Wu, Wangyi
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Development of a phase-displacement equation for panoramic interferometry

Applied Optics, 2000
We developed the parametric equations that are needed to quantify the modulations in the sensitivity vector that occur when the phase-displacement equation is applied to make panoramic interferometric measurements. The measurement system relies on two collinear panoramic annular lenses, one to illuminate and the other to image their surroundings.
S B, Fair, J A, Gilbert, D R, Matthys, C H, Lindner   +3 more
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Displacive Phase Transitions

2003
Abstract Many applications of the solid state sciences exploit the electronic or mechanical properties of solids. The important materials are metals or semiconducting materials. These materials tend to have relatively simple crystal structures, such as the cubic and hexagonal structures we met in Chapter 2 (fcc, hcp, diamond, NaCl, and ...
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Displacive processes and phase transformations

Bulletin of the Russian Academy of Sciences: Physics, 2009
Two basic displacive processes can be considered, namely displacements of crystal parts as rigid blocks and shuffling of atomic planes. The many-body potentials are used for the interatomic forces. General displacements of atomic planes are examined, i.e. γ-surface type calculations are applied to single plane shuffling and alternate shuffling of every
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Shuffling in displacive phase transformations

Materials Science and Engineering: A, 2008
With the aim to elucidate the transformation paths producing complex martensitic structures, the elementary mechanisms of collective atomic motion in diffusionless phase transformations are investigated using simple geometrical models. Relationships of the structures created by different mechanisms are summarized and the role of various planar crystal ...
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Multidimensional Displacement of a Viscous Phase by a Non-Viscous Phase

Society of Petroleum Engineers Journal, 1968
Abstract A mathematical model has been formulated for simulating three-dimensional displacement of a viscous fluid by a displacing fluid of zero viscosity. The model has been incorporated into a FORTRAN IV computer program for application in low-rate, high-permeability systems.
Alan D. Modine, Keith H. Coats
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Displacive Phase Transitions at Large Strains: Phase-Field Theory and Simulations

Physical Review Letters, 2009
The Landau potential for multivariant displacive phase transformations (PTs) is derived for the most general case of large rotations, elastic and transformational strains, as well as nonlinear and different elastic properties of phases. The method of repetitive superposition of large strains is extended for PTs and is utilized in the finite-element ...
Levitas, Valery, Levin, Vladimir, Zingerman, Konstantin, Freiman, Eugene   +3 more
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