نتایج جستجو برای: anisotropic medium

تعداد نتایج: 275048  

Journal: :Journal of Mathematical Analysis and Applications 2011

Journal: :Journal de Mathématiques Pures et Appliquées 2003

Journal: :Annals of Physics 2021

We study Anderson localization of a scalar wave in an ensemble resonant point scatterers embedded anisotropic background medium. For uniaxial anisotropy moderate strength, the mobility edges and critical exponent transition are found to be unaffected by provided that determinant tensor is kept equal one upon introducing anisotropy. Localized modes have spatial shapes although their weaker than ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1388

چکیده ندارد.

2014
Arthur S O Sanya Christian Akowanou Emile A Sanya Gerard Degan

The problems of steady film condensation on a vertical surface embedded in a thin porous medium with anisotropic permeability filled with pure saturated vapour are studied analytically by using the Brinkman-Darcy flow model. The principal axes of anisotropic permeability are oriented in a direction that non-coincident with the gravity force. On the basis of the flow permeability tensor due to t...

1997
I. Villó Pérez

The authors propose an extension of Berenger’s perfectly matched layer (PML) absorbing boundary conditions (ABC’s) to achieve a perfect matching of waves propagating in anisotropic media. Although the procedure to obtain the matching conditions is valid for any kind of anisotropic material, it has been validated with a lossless two-dimensional uniaxial medium, in which the optical axis is not c...

2008
H. Y. Xie P. T. Leung D. P. Tsai

Recent studies have established certain specific results concerning the optical reciprocity of source and observer in the presence of dielectric medium with nonlocal response (i.e. spatial dispersion). These include the case of a linear dielectric response with dependence on the electric field gradient; as well as the case of a general anisotropic nonlocal medium in the long wavelength quasista...

2016
Wangwang Wang Changhong Lin Handong Tan Honglei Liu

In recent years, the anisotropic study has become a hot topic in the field of electromagnetics. Currently, inversion technologies of transient electromagnetic sounding data are mainly based on the case of an isotropic medium. However, the actual underground electrical structure tends to be complicated and anisotropic. It is often found that the isotropic inversion technologies do not lead to go...

2008
M. Amooshahi

By modeling a linear, anisotropic and inhomogeneous magnetodielectric medium with two independent set of harmonic oscillators, electromagnetic field is quantized in such a medium. The electric and magnetic polarizations of the medium are expressed as linear combinations of the ladder operators describing the magnetodielectric medium. The Maxwell and the constitutive equations of the medium are ...

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