Can Gelis

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SUMMARY A method is proposed for accurately describing arbitrary-shaped free boundaries in finite-difference schemes for elastodynamics, in a time-domain velocity-stress framework. The basic idea is as follows: fictitious values of the solution are built in vacuum, and injected into the numerical integration scheme near boundaries. The most original feature(More)
For a long time hearing aids were the only solution for the deaf to perceive speech and sounds. Today, among the new deaf-aids, acoustic amplification still offers the easiest and most versatile means of combatting the majority of such handicaps. However, due to the fundamental inadequacy of amplification in compensating frequency selectivity, audiologist(More)
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