Abstract: An article carrier bag, in particular of the fastfood takeaway type, the bag comprising a bottom and sides (F12, F13) defining inside walls bounding an inside storage space, and being characterized in that at least one gusset element (E1) in a folded state is fitted to and fastened on at least one inside wall of the sides (F12, F13) in two adjacent fastener zones that are separated by a frangible zone (F15) provided in association with at least one side (F12, F13), so as to be capable of bringing the gusset element (E1) into an unfolded state after breaking the frangible zone (F15).

Abstract: A pyrotechnic process for providing very high purity hydrogen, includes the combustion of at least one solid pyrotechnic charge capable of generating hydrogen-containing gas for the production of a pressurized hot hydrogen-containing gas that contains at least 70% by volume of hydrogen; and the purification of at least one portion of the pressurized hydrogen-containing gas, by passing through a metallic hydrogen separation membrane maintained at a temperature above 250° C., in order to obtain, at the outlet of the membrane, a hydrogen-containing gas that contains at least 99.99% by volume of hydrogen.

Abstract: A pyrotechnic process for providing very high purity hydrogen, includes the combustion of at least one solid pyrotechnic charge capable of generating hydrogen-containing gas for the production of a pressurized hot hydrogen-containing gas that contains at least 70% by volume of hydrogen; and the purification of at least one portion of the pressurized hydrogen-containing gas, by passing through a metallic hydrogen separation membrane maintained at a temperature above 250° C., in order to obtain, at the outlet of the membrane, a hydrogen-containing gas that contains at least 99.99% by volume of hydrogen.