Régis Pommier

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Perfect (100%) absorption by thin structures consisting of a periodic arrangement of rectangular quarter-wavelength channels with side detuned quarter-wavelength resonators is demonstrated. The thickness of these structures is 13-17 times thinner than the acoustic wavelength. This low frequency absorption is due to a slow sound wave propagating in the main(More)
The purpose of this study is to estimate the modulus of elasticity of green lumber with unknown moisture content (MC) by non-destructive measurement. This paper reports the results and statistical analysis of a large number of experiments. They indicate that the dynamic modulus of elasticity (DMOE) can be determined without knowing the MC. Mechanical(More)
The objective of this research was to investigate the technical feasibility of producing plywood by green-gluing technology. 2.5 mm thick rotary cut veneers obtained from steamed maritime pine (Pinus pinaster Ait.) logs were used. Plywood was manufactured under vacuum with veneers in a wet state. Five-layer plywood panels were produced using a one-component(More)
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