Abstract: This relates to a dosimeter including a light source capable of generating a light beam, an optical coupler-splitter, a radio-sensitive optical fiber, a first photodetector arranged to record a power measurement of the light beam transmitted through the radio-sensitive optical fiber, a reference optical arm, a second photodetector arranged to record a reference power measurement of the light beam transmitted through the reference optical arm, and an electronic system configured to extract a differential radiation induced attenuation measurement in the radio-sensitive optical fiber with respect to the reference optical arm. The light beam is non-polarized or depolarized, or, respectively, the light beam is polarized and the radio-sensitive optical fiber is a polarization-maintaining fiber.

Abstract: An acoustic tile comprising a perforated support wherein one of the faces is covered on its entire surface with a nonwoven material, characterized in that the material is coated on at least one face by a photocatalytic composition comprising at least one photocatalyst agent.

Abstract: A biodegradable fibrous support for soil mulching, characterized in that it is provided with a reinforcing means in the form of a grid, which is either maintained on the whole or part of at least one face of the support, or incorporated into the whole or part of the mass of the support.

Abstract: Biodegradable fibrous support for soil mulching, characterized in that it is coated with an aqueous solution based on biodegradable natural latex from the rubber tree.

Abstract: Biodegradable fibrous support for soil mulching, characterized in that it further contains biodegradable thermobonding fibres distributed into the mass.