по журналам "Waves in Random Media"
Отображаемые элементы 120 из 67

(Taylor & Francis, 19940101)

(Taylor & Francis, 19961001)The effective dielectric constant ∈eff of a medium containing randomly distributed dielectric particles has been analysed by conventional methods: Foldy's approximation, the quasicrystalline approximation (QCA) and the ...

(Taylor & Francis, 19960401)In this paper, we deal with the timeharmonic scattering by onedimensional rough surfaces separating two homogeneous and isotropic media. The method is based on a rigorous integral formalism. The unknown of the integral ...

(Taylor & Francis, 19920401)In order to account for the permittivity contrast between a host medium and inhomogeneities embedded in it the continuous rotating medium concept with a spatially random permittivity tensor ϵ0[ϵ(ω, r)δij+iα(ω, r)eijlhl) ...

(Taylor & Francis, 19930701)A definition of the scattering cross section of a sphere immersed in an absorbing medium is considered. The quantity, and the relevant phase function, can be used in Monte Carlo calculations regarding multiple scattering.

(Taylor & Francis, 19941001)A numerical method is described for obtaining the complex wave number q(ω)=qR(ω)+iq1(ω) of a surface plasmon polariton of frequency ω propagating normal to the grooves and ridges of a onedimensional, randomly rough, lossy ...

(Taylor & Francis, 19911001)The finite element method (FEM) of Monte Carlo simulations of random rough surface scattering is extended to penetrable rough surface scattering. The attraction of the method is the banded nature of the resulting matrix ...

(Taylor & Francis, 19920101)A Monte Carlo method for calculating the radar backscatter crosssections from a forest stand is presented in this study. The model for the forest stand consists of two layers: the top layer contains a mixture of randomly ...

(Taylor & Francis, 19950101)In this paper, a uniform integral representation has been obtained for the fourth moment of the field of a wave propagating in a medium with random largescale irregularities. The solution to the equation was obtained using ...

(Taylor & Francis, 19910101)Many materials present an internal grain microstructure. When these materials are subjected to ultrasonic nondestructive testing, the grains behave like scattering centres producing unwanted backscattered noise that can ...

(Taylor & Francis, 19930401)Based on the parabolic equation, the problem of a statistical description for caustic origin in random media is considered. The method from White and coworkers are used and the stochastic equations are considered under ...

(Taylor & Francis, 19940101)We obtain an exact analytical solution to the problem of the enhanced backscattering of a short pulsed signal from a two and threedimensional medium with isotropically scattering centres. The angular spectrum is expressed ...

(Taylor & Francis, 19951001)The dependent scattering effects in ideal latexsphere suspensions and beds of irregularly shaped powder grains are theoretically described by means of a coherent addition formalism together with the statistical PercusYevic ...

(Taylor & Francis, 19941001)An experimental investigation of the atmospheric coherence diameter is presented in order to examine the relative effects of turbulence and aerosol forward scattering. The investigation includes measurements through the ...

(Taylor & Francis, 19950101)The meanfield method is used to analyse longitudinal and transverse (both SV and SHtype) wave propagation in an unbounded randomly stratified solid medium. It is assumed that elastic moduli of the medium are constant ...

Electromagnetic scattering from a continuously inhomogeneous random medium with cylindrical symmetry(Taylor & Francis, 19950701)Born's approximation is used to determine the mean value of the turbulent radar cross section (RCS) of an inhomogeneous cylindrical random medium at oblique incidence. The mean medium is taken into account by a renormalization ...

(Taylor & Francis, 19940401)The problem of electromagnetic wave scattering from a random medium layer with a random interface is considered. The layer has planar boundaries on average. Assuming that both the random perturbations of the interface and ...

Enhanced backscattering and blazing effect from gratings, quasigratings and randomly rough surfaces(Taylor & Francis, 19941001)The blazing effect is probably the most important property of diffraction gratings used for spectroscopic purposes. On the other hand, the enhanced backscattering phenomenon has been generally studied in the framework of ...

(Taylor & Francis, 19911001)By means of numerical simulations the authors study the scattering of a beam of ppolarized light from a small RMS slope onedimensional random surface on a semiinfinite metal or ntype semiconductor to which a constant ...

(Taylor & Francis, 19920701)A plane wave reflection from a statistically rough surface, which consists of a system of open flat waveguides, is considered in the physical optics approximation. It is shown that for sufficiently deep waveguides the ...
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