Abstract: The invention relates to a device including a set of superconducting conductors, of junctions and of control elements, each conductor comprising a first portion extending according to a first direction and a set of second portions, the first portions being offset relative to each other according to a second direction, at least three junctions being interposed according to the second direction between each pair of successive first portions, each junction being connected to the first portion of each of the conductors between which the junction is interposed by a second portion of said conductor, each control element being configured to switch the associated junction between a configuration in which the junction forms a Josephson junction and a configuration in which the junction blocks the Cooper pairs.

Abstract: The invention relates to an improved process for the production of powders of an inhalable medicament by crystallization from a supersaturated fluid containing said medicament, the method comprising passing along a tubular reactor (a) a segmented flow of that fluid comprised of discrete volumes; or (b) a fluid mixture being separated by discrete volumes of a separating fluid which is substantially immiscible with said fluid, characterized in that the crystallization is initiated by application of ultrasound.

Abstract: The invention relates to an improved process for the production of powders of an inhalable medicament by crystallization from a supersaturated fluid containing said medicament, the method comprising passing along a tubular reactor (a) a segmented flow of that fluid comprised of discrete volumes; or (b) a fluid mixture being separated by discrete volumes of a separating fluid which is substantially immiscible with said fluid, characterized in that the crystallization is initiated by application of ultrasound

Abstract: The invention concerns injectable bone filling cements, in particular hydraulic calcium phosphate cements, the latter being prepared from at least two initial liquid or pasty constituents comprising each a species reactive in solution or in suspension, the solidification process being initiated when said constituents are being mixed.

Abstract: The invention concerns microgranules produced from calcium phosphate materials. The invention also concerns a method for producing said microgranules. The inventive microgranules are characterized by a very narrow particle size distribution.

Abstract: The invention concerns a bone substitute with controlled anatomical shape and macroporous structure made from chemically consolidated cement phosphocalcic materials. Said substitute can be obtained by forming a liquid or plastic paste consisting of calcium phosphate and other hardly soluble calcium slats. The forming by molding used with a paste and its chemical consolidation ex-vivo enables an entity to obtain a substitute having a more or less large size whereof the controllable anatomical shape corresponds to that of the bone block to be replaced, and an adapted macroporous architecture promoting rehabitation and resproption of the substitute, while ensuring the best initial mechanical properties and their being preserved until the graft is definitely replaced by the newly formed bone.

Abstract: The invention concerns injectable bone filling cements, in particular hydraulic calcium phosphate cements, the latter being prepared from at least two initial liquid or pasty constituents comprising each a species reactive in solution or in suspension, the solidification process being initiated when said constituents are being mixed.

Abstract: The invention relates to an improved process for the production of powders of an inhalable medicament by crystallization from a supersaturated fluid containing said medicament, the method comprising passing along a tubular reactor

Abstract: The invention concerns microgranules produced from calcium phosphate materials. The invention also concerns a method for producing said microgranules. The inventive microgranules are characterized by a very narrow particle size distribution.

Abstract: A process for the production of powders by precipitation from a liquid reaction mixture comprises passing along a tubular reactor a segmented reaction flow comprised of discrete volumes of the reaction mixture separated by discrete volumes of a separating fluid which is substantially immiscible with said reaction mixture, the residence time of said discrete volumes of reaction mixture in the reactor being sufficient for the precipitation reaction to be effected.

Abstract: The cement for surgical purposes includes three components. The first component includes beta tertiary calciumphosphate &bgr;-Ca3(PO4)2(&bgr;-TCP) particles; and monocalcium phosphate Ca(H2PO4)2(MCPA) or monocalcium phosphate monohydrate Ca(H2PO4).H2O (MCPM) particles or phosphoric acid. The second component includes water. The third component includes particles having an average diameter which is larger than the average diameter of the beta tertiary calciumphosphate &bgr;-Ca3(PO4)2(&bgr;-TCP) particles of the first component. Upon mixing of the three components a hardened mass comprising brushite CaHPO4.2H2O (DCPD) is formed. The &bgr;-TCP particles have a specific surface area of less than 10,000 m2/g and a Ca/P atomic ratio different from 1.50. The component constitutes 1 to 99 volume-percent of the hardened mass.

Abstract: The object of the invention is to provide a method for the treatment of all kinds of clay or any ceramic composition based on clay.The method consists in distributing in the clay metal ions capable of forming the corresponding oxide at a temperature at the most equal to the firing temperature of the clay thus treated, by maintaining the clay in contact with a liquid phase under conditions such that said ions pass at least in part into the liquid phase and a diffusion of said ions throughout the mass of clay is ensured.