Abstract: A method, a device and a system for controlling access to a service by a user. The method is implemented by an access device. The method includes the following steps on the device to verify the human status of a user: obtaining at least one three-dimensional virtual object and associated data, referred to as resolution data; controlling playback of the at least one virtual object for the user; obtaining user interaction data with the at least one virtual object; and if the interaction data correspond to the resolution data, confirming the human status of the user.

Abstract: A method, a device and a system for controlling access to a service by a user. The method is implemented by an access device. The method includes the following steps on the device to verify the human status of a user: obtaining at least one three-dimensional virtual object and associated data, referred to as resolution data; controlling playback of the at least one virtual object for the user; obtaining user interaction data with the at least one virtual object; and if the interaction data correspond to the resolution data, confirming the human status of the user.

Abstract: Disclosed is a computerized process and system for modeling aeraulic flows in an environment in particular for the evaluation of the risks of airborne contamination. The principle of the process consists in considering that in a given individual unit or mesh, defined as fairly small, the final values of the primitive variables (V, P, T) are the result of their primary values calculated in an irrotational field composed of a “pressure-velocity” coupling with a turbulence model adapted to Newtonian and incompressible fluids belonging to the range of validity of the process.

Abstract: Disclosed is a computerized process and system for modeling aeraulic flows in an environment in particular for the evaluation of the risks of airborne contamination. The principle of the process consists in considering that in a given individual unit or mesh, defined as fairly small, the final values of the primitive variables (V, P, T) are the result of their primary values calculated in an irrotational field composed of a “pressure-velocity” coupling with a turbulence model adapted to Newtonian and incompressible fluids belonging to the range of validity of the process.

Abstract: The device made in a resorbable material intended to be placed in urethra for Treatment of stricture has the shape of a tube (1), the wall of which has offices (2).

Abstract: A system for accurately locating and positioning a person moving or standing still inside a hostile or severely damaged environment. For a person walking through any given environment, the location system continuously provides coordinates for positioning the person within the environment relative to the entry point thereof. The location system uses the morphological data of the person and integrates the person's movement in real time by acquiring features of the person's pace as the result of simultaneously combining the angles formed by the ankles, knees and hips of the person when walking, measured by electrogoniometers and interpreted according to a developed calculation method. The location system outdoes other existing solutions for locating a person in a difficult environment, such as, inside an underground building, partially collapsed and filled with opaque smoke, without the risk of faulty measurements, since it does not track by waves or by any vision-based system.

Abstract: The recoverable intra-uterine system comprises a housing capable of containing one or a plurality of elements selected from among the group comprising an embryo, male and/or female gametes, a fertilized oocyte, and unfertilized ovum and a combination of these elements, the housing having along an axis a distal end and a proximal end, and a device for holding the recoverable intra-uterine device in the uterus. The holding device is arranged at the proximal end of the housing and includes at least one holding arm in the uterine cavity capable of taking at least two positions: —one free position in which at least one holding arm is separated from the axis; and —a retracted position in which at least one holding arm is substantially parallel to the axis. Use in medically assisted reproduction techniques.

Abstract: The device made in a resorbable material intended to be placed in urethra for Treatment of stricture has the shape of a tube (1), the wall of which has offices (2).

Abstract: The recoverable intra-uterine system comprises a housing capable of containing one or a plurality of elements selected from among the group comprising an embryo, male and/or female gametes, a fertilized oocyte, and unfertilized ovum and a combination of these elements, the housing having along an axis a distal end and a proximal end, and a device for holding the recoverable intra-uterine device in the uterus. The holding device is arranged at the proximal end of the housing and includes at least one holding arm in the uterine cavity capable of taking at least two positions: —one free position in which at least one holding arm is separated from the axis; and —a retracted position in which at least one holding arm is substantially parallel to the axis. Use in medically assisted reproduction techniques.

Abstract: A recoverable intra-uterine device comprising a housing containing one or several elements selected from a group containing an embryo, male and/or female gametes, a fertilised oocyte, an unfertilised egg and the combination thereof, wherein said housing is provided with a wall made of a biocompatible material. The wall is provided with a series of perforations whose size is sufficient in order to bring the intra-uterine medium into a cellular contact with the housing and to keep the elements therein. The inventive device is provided with a system for loading and unloading one or several elements selected from the group containing an embryo, male and/or female gametes, a fertilised oocyte, an unfertilised egg and the combination thereof.

Abstract: A device for shrinking and/or reinforcing the heart valve orifices includes a thick link (1) made of a bioresorbable, soft and curved material. It is secured at one of its ends to at least a thin yarn (3) whereof the end is fixed to a curved needle.

Abstract: A porous composite product in the form of a film with a high specific surface. Used in a wide range of electrochemical products especially in the field of selective membranes, packaging or catalysis. The porous composite product has a high homogeneity in the distribution of the filler and a continuous structure. The product is capable of being obtained by extrusion.

Abstract: A device for shrinking and/or reinforcing the heart valve orifices includes a thick link (1) made of a bioresorbable, soft and curved material. It is secured at one of its ends to at least a thin yarn (3) whereof the end is fixed to a curved needle.

Abstract: A porous composite product in the form of a film with a high specific surface. Used in a wide range of electromechanical products especially in the field of selective membranes, packaging or catalysis. The porous composite product has a high homogeneity in the distribution of the filler and continuous structure. The product is capable of being obtained by extrusion.

Abstract: A process for the preparation of a porous composite product. The process steps are forming a homogeneous mixture having one or more insoluble polymers, one or more soluble or calcinable polymers and one or more fillers, in particular with a high specific surface; extruding the mixture to form an extruded precursor product; removing the soluble or calcinable polymer or polymers from the extruded precursor product, in order to form pores, and recovering the porous composite product.

Abstract: A porous composite product in the form of a film with a high specific surface. Used in a wide range of electrochemical products especially in the field of selective membranes, packaging or catalysis. The porous composite product has a high homogeneity in the distribution of the filler and a continuous structure. The product is capable of being obtained by extrusion.

Abstract: The invention concerns a porous composite product in particular with high specific surface area, characterised in that it is formed of a polymeric material and at least 20% of one or several fillers, and in that the product is obtainable by extrusion. The invention also concerns a method for preparing a porous composite product characterised in that it consists in: a) forming a mixture containing one or several insoluble polymers, one or several soluble or calcinable polymers, one or several fillers; b) extruding said mixture for forming an extruded precursor product; c) eliminating the soluble or calcinable polymer(s) of the extruded precursor product; recuperating the porous composite product. The invention also concerns all extruded object consisting of a porous composite product in particular with high specific area. Finally it concerns an electrode formed of a film of porous composite product.

Abstract: A process for the preparation of a pourous composite product. The process steps are forming a homogeneous mixture having one or more insoluble polymers, one or more soluble or calcinable polymers and one or more fillers, in particular with a high specific surface; extruding the mixture to form an extruded precursor product; removing the soluble or calcinable polymer or polymers from the extruded precursor product, in order to form pores, and recovering the pourous composite product.

Abstract: A process for producing N-formylleucine includes reacting leucine with formamide, precipitating the N-formylleucine, once the reaction is complete, at a temperature of approximately 0° to 40° C., by mixing the reaction medium with water and an acid, so that the final pH of the mixture is approximately 2 to 3, wherein the amount of water used in between approximately 1.5 and 5 parts per part by weight of starting formamide.

Abstract: The invention relates to a new process for the synthesis of a disubstituted carbodiimide, including a first stage of phosgenation of an N,N'-disubstituted urea in an organic solvent medium.After this first stage ammonia is added to the reaction mixture without preliminary isolation of any intermediate compound.The process is simple, relatively inexpensive and the yield is high.Disubstituted carbodiimides are organic synthesis intermediates used especially in pharmaceutical chemistry as coupling agents in peptide synthesis.