Abstract: A method for detecting the opening of the openable sections of a motor vehicle by a detection device. The device includes at least two ultra-high-frequency communication modules, each located on a different openable section and connected to an electronic computer. An opening angle of a first openable section is determined based on: a first distance between a rotation point of the first openable section on which a first communication module is located and a position of a second module when the two openable sections associated with the two modules are closed; a second distance between a rotation point of the first openable section and a position of the first module on the openable section; a distance between the two modules when the two openable sections associated with the two modules are closed; a distance between the modules, determined by a time of flight of ultra-high-frequency radiation exchanged between the modules.

Abstract: A method for activating a function of a motor vehicle by an activation device on the vehicle having at least one communication unit including at least one radiofrequency antenna and transmission and reception device. The activation coming from a user's portable device. The activation of the function is triggered by detection of the user's presence in a predetermined zone around the vehicle and on the basis of a result of authentication of the portable device by the vehicle.

Abstract: A computer for a motor vehicle. The vehicle including a plurality of wheels, at least one of the wheels including a sensor for measuring at least one value of a “pitch” parameter, enabling the computer to determine a “pitch” coordinate of the sensor along a predetermined “pitch” axis orthogonal to the direction of movement of the vehicle and parallel to the plane of the road. The computer being capable of receiving from the sensor at least one value of the pitch parameter, determining at least one pitch coordinate of the sensor on the basis of the at least one value received, detecting a geometric anomaly in the wheel including the sensor when at least one determined pitch coordinate is outside a first predetermined range of values of coordinates on the pitch axis.

Abstract: A method for manufacturing an ?+? Ti-6Al-4V alloy includes providing a near-net shape part made of an ?+? Ti-6Al-4V alloy, The part is heat treated in the ?+? field between 875 and 920° C. The heat treated part is water quenched to transform the ? phase into ?? martensite. There is no further heat treatment after the quenching step.

Abstract: A method for manufacturing an ?+? Ti-6Al-4V alloy includes providing a near-net shape part made of an ?+? Ti-6Al-4V alloy, The part is heat treated in the ?+? field between 875 and 920° C. The heat treated part is water quenched to transform the ? phase into ?? martensite. There is no further heat treatment after the quenching step.

Abstract: The invention relates to a glass having SiO2, Na2O and CaO as main components, which comprises two amorphous phases having different compositions, one of the two phases being in the form of inclusions dispersed in the volume of the other phase and comprising crystalline particles. Such a glass has good mechanical strength, in particular good resistance to scratch propagation and allows improved tempering. This glass furthermore has a pleasant aesthetic appearance.

Abstract: The invention relates to a glass-ceramic material having SiO2, Na2O and CaO as main components and comprising crystalline particles of SiO2 dispersed homogeneously in the volume of an amorphous matrix. Such a material has good mechanical strength, in particular good resistance to scratch propagation and allows improved tempering. This material furthermore has a pleasant aesthetic appearance.

Abstract: The invention relates to a glass-ceramic material having SiO2, Na2O and CaO as main components and comprising crystalline particles of SiO2 dispersed homogeneously in the volume of an amorphous matrix. Such a material has good mechanical strength, in particular good resistance to scratch propagation and allows improved tempering. This material furthermore has a pleasant aesthetic appearance.

Abstract: The invention relates to a glass having SiO2, Na2O and CaO as main components, which comprises two amorphous phases having different compositions, one of the two phases being in the form of inclusions dispersed in the volume of the other phase and comprising crystalline particles. Such a glass has good mechanical strength, in particular good resistance to scratch propagation and allows improved tempering. This glass furthermore has a pleasant aesthetic appearance.