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A pseudospectral method for the analysis of diffractive optical elements is presented. This method is a full-vectorial direct solution of the time-domain Maxwell equations based on a spectral approximation of the spatial derivatives employed within a multi ...
The topological features of a stochastic magnetic field are investigated by the tracing of magnetic field lines. The first method consists of direct integration of the field line equations. An alternative approach is to invoke the incompressibility of the ...
This study aimed to model phenomenologically the dynamics of arterial wall remodeling under hypertensive conditions. Sustained hypertension was simulated by a step increase in blood pressure. The arterial wall was considered to be a thick-walled tube made ...
A methodology is presented for the formulation of an algebraic extra-stress model derivable from the Oldroyd-B constitutive equation for a viscoelastic fluid. An implicit algebraic tensor relation is derived directly from the differential constitutive rela ...
A wide variety of amplitude- or phase-modulated pulses, which are designed for selective excitation, inversion or refocusing, are severely perturbed by radiation damping effects in the presence of a large macroscopic magnetization. A general method is pres ...
The development of techniques and companies is leading to an increase in performance and a decrease in the cost of products. This double development causes an increase in the sensitivity of technical systems, both from the point of view of the level of dis ...
We develop a pseudospectral multi-domain formulation for the accurate modeling of generic diffractive optical elements, here exemplified by off-plane waveguide holograms for the coupling between guided waves and freely propagating wavefronts. The individua ...
Applied Computational Electromagnetics Soc, Monterey, CA, United States1998
An understanding of the behaviour of saturated/unsaturated soils is important for the design and analysis of geostructures. In this paper a continuum approach based on a structured thermodynamic theory of mixtures developed by Svendsen & Hutter (1995), in ...
In an attempt to describe the basic phenomenon of grout propagation, a continuous model of miscible fluid displacement in deformable saturated porous media is proposed. In order to exhibit the relevance of the hydromechanical coupling during the mass trans ...
We show that the two-dimensional quantum confined Stark effect in a semiconductor quantum wire can display novel behaviour, i.e. wave function splitting and cascading. No analog to these phenomena can be found in bulk material or quantum wells. The consequ ...