Remarks on the exact controllability for large times.- Microlocal ideas in control and stabilization.- Spectral and asymptotic properties of linear elastic systems with internal energy dissipation.- On riblets in laminar flows.- Iterated homogenization and the effective properties of polycrystals.- Some remarks on the exact controllability in a neighbourhood of the boundary of a perforated domain.- A newton 's method in a domain optimization problem.- Optimal control of hemivariational inequalities.- Exact controllability in short time.- Uniform boundary stabilization of tiiermoelastic plates.- Asymptotic behavior of the solutions of the kirkhoff plate with nonlinear dissipation in the bending moment.- Stabilization of a vibrating string system linked by point masses.- Some identification problems in petroleum geophisics.- Development of a two/three dimensional shape optimization program with solid modelling, semi-automatic mesh generation and adaptive mesh refinement.- Optimisation d'un système surfacique (équation de la chaleur).- Output least square estimation of power-laws in distributed damping models: Beams.- Some remarks on the boundary stabilizability of the wave equation.