Results 281 to 290 of about 237,944 (326)
Some of the next articles are maybe not open access.

A Regularized Equation for Anisotropic Motion-by-Curvature

SIAM Journal on Applied Mathematics, 1992
Mathematics Technical ...
DI CARLO, Antonio   +2 more
openaire   +4 more sources

Anisotropic Burgers equation with an anisotropic perturbation

Communications in Nonlinear Science and Numerical Simulation, 2011
Abstract In this paper we propose an anisotropic Burgers equation with an anisotropic perturbation, which governs many nonlinear dynamic processes in an anisotropic diffusive (viscous) medium. Using conventional transformation methods, we find the analytical solution for the initial-value problem of the Burgers equation in a 2D anisotropic space ...
openaire   +3 more sources

Anisotropic fractional diffusion equation

Physica A: Statistical Mechanics and its Applications, 2005
Abstract We analyze an anisotropic fractional diffusion equation that extends some known diffusion equations by considering a diffusion coefficient with spatial and time dependence, the presence of external forces and time fractional derivatives.
Renio S. Mendes   +3 more
openaire   +2 more sources

Equation of state for anisotropic spheres

General Relativity and Gravitation, 2006
We present a new class of exact interior solutions for anisotropic spheres to the Einstein field equations with a prescribed energy density. This category of solutions has similar energy density profiles to the models of Chaisi and Maharaj (Gen. Rel. Grav. 37, 1177–1189, 2005) whose approach we follow in the integration process.
M. Chaisi, M. Chaisi, Sunil D. Maharaj
openaire   +2 more sources

The migrator’s equation for anisotropic media [PDF]

open access: possibleGEOPHYSICS, 1990
The migrator’s equation, which gives the relationship between real and apparent dips on a reflector in zero‐offset reflection seismic sections, may be readily implemented in one step with a frequency‐domain migration algorithm for homogeneous media. Huygens’ principle is used to derive a similar relationship for anisotropic media where velocities are ...
John A. McDonald   +2 more
openaire   +1 more source

Constitutive equations for anisotropic wear

International Journal of Engineering Science, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Constitutive equations for anisotropic continua

Composites Part A: Applied Science and Manufacturing, 1998
Two classes of simple constitutive equations for continuous fibre-reinforced composites are introduced. In the first, the transverse and longitudinal viscosities are functions of invariants of the rate-of-strain tensor and the fibre-orientation vector. In the second, anisotropic yield conditions are imposed.
R.S. Jones, Jeff Goshawk
openaire   +2 more sources

The Boltzmann equation for anisotropic metals

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962
It is pointed out that the Boltzmann equation in the theory of metals reduces to a finite set of linear algebraic equations whenever the scattering probability can be written as a finite sum of the form Σ p i (k) q i (k´) .
openaire   +2 more sources

Reformation of the equations of anisotropic poroelasticity

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1991
The constitutive equations of linear poroelasticity presented by Biot (1955) and Biot and Willis (1957) extended the description of rock behavior into the realm of saturated porous rocks. For isotropic material behavior, Rice and Cleary (1976) gave a formulation which involved material constants whose physical interpretation was particularly simple and
M. Thompson, John R. Willis
openaire   +4 more sources

On the Dirac equation in anisotropic backgrounds

Physics Letters A, 1988
Abstract We solve a recently posed problem on the number of independent solutions of the Dirac equation in metrics in which this equation is separable, and extend the notion of observer dependent quantum vacua to the spin- 1 2 case.
Mario Castagnino   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy