Abstract: This invention relates to a process for manufacturing nanowire structures, the process comprising the following steps: manufacture of a thin semiconductor film (1) extending between a first terminal (4) and a second terminal (5), and passage of a current between the first and the second terminals so as to form at least one continuous overthickness (R1, R2, R3) in the thin semiconductor film by migration of a fraction of the semiconductor material, under the action of the current, the continuous overthickness being formed along the direction of the current that passes through the film.

Abstract: This invention relates to a process for manufacturing nanowire structures, the process comprising the following steps: manufacture of a thin semiconductor film (1) extending between a first terminal (4) and a second terminal (5), and passage of a current between the first and the second terminals so as to form at least one continuous overthickness (R1, R2, R3) in the thin semiconductor film by migration of a fraction of the semiconductor material, under the action of the current, the continuous overthickness being formed along the direction of the current that passes through the film.

Abstract: A quantic effect device which functions using a Coulomb blockade phenomenon. The device includes two electron reservoirs, two sets of islands that are separated by a dielectric layer, a protective insulating layer and a control electrode.

Abstract: Process for the manufacture of components from untreated steel, comprising a series of heat treatment and forming operations, characterised by heating the steel to a temperature above the transition point (austenizing), isothermal quenching in a fluidized bed bath immediately after the austenizing heating giving the steel a bainitic structure and then forming the components under mild conditions.

Abstract: An improved process for the continuous production of trinitrotoluene by dinitrating and trinitrating mononitrotoluene in the presence of concentrated nitric acid and concentrated sulphuric acid or fuming sulphuric acid, which is characterised in that the trinitration step is carried out in a group of pieces of equipment in which the reagents flow in co-current, this group comprising at least two stages, each stage having at least two nitration reactors in series followed by a separator and the first of the reactors in each stage being supplied separately with a mixture of concentrated sulphuric acid or fuming sulphuric acid and nitric acid.Installations for carrying out this process are also disclosed.