h a series of orthogonal polynomials. This representation corresponds physically to a system conFig. VIII-1. Nonlinear filter. taining only multipliers as nonlinear elements. The suggestion offered in this report is to represent f by an orthogonal trigonometric series that corresponds physically to a system containing phase modulators. To simplify matters, let us first assume that the signals x...

This paper presents an application of evolutionary genetic techniques to the identification of internal parameters of a mass-spring physically-based animation model. A physical model of fabrics is first presented. It uses a mass-spring mesh and an inverse dynamics procedure in order to model the non-linear elasticity of fabrics. A method to identify the internal parameters of the model from geo...

Three-layer concrete slabs are considered where each layer is formed of its grade. These widely used in the construction industry, particularly agricultural buildings and structures; thus, calculating these under external loads forces caused by their weight an important relevant task. It assumed that concretes non-linearly formed, ratios between stresses strains taken as third-order polynomials...

The multiplicity of the equilibrium profiles is analyzed for axial dispersion nonisothermal tubular reactors described by Arrhenius type nonlinear models. It is reported that there is at least one steady state among the physically feasible states for such models. Moreover physically meaninful conditions which ensure the multiplicity of equilibrium profiles are given.

We present a physically-based animation method for simulating the diffusion of water pollutant in this paper. Our method allows animating the dynamic evolution of biological pollutants (e.g., water hyacinth, algae) on largescale water surface effectively. To enable the simulation of such a phenomenon in large scale virtual environment, we simplify the problem by considering the water pollutants...

Films like Shrek, Madagascar, The Chronicles of Narnia and Charlotte’s web all have something in common: realistic quadruped animations. While the animation of animals has been popular for a long time, the technical challenges associated with creating highly realistic, computer generated creatures have been receiving increasing attention recently. The entertainment, education and medical indust...