Abstract: A PET and Compton imaging method implemented by a device including at least two facing PET modules. The device includes a Compton camera arranged outside a plane containing the PET modules for forming a trihedron with the PET modules and producing a Compton view. The acquisition fields of the PET and Compton views having an overlap area covering the object to be imaged. The device allowing the following steps to be carried out: acquisition of a Compton view; location of a dense area and its contour on the Compton view; Computation of the 2D map of the probability of detection of the presence of a source from the Compton view of the Compton camera; Coincidence detection by the PET cameras and association of a response line (LOR); and Segmentation of LORs crossing the dense area by using the detection probability determined by the Compton view.

Abstract: Construction element for creating a tunnel, including a first incompressible layer of concrete and a second compressible layer securely fastened to the first layer to form a monoblock prefabricated construction element configured to be integrated in a section of the tunnel during creation of the tunnel, the second layer including a plurality of devices each having a solid body integrating an empty space.

Abstract: Construction element for creating a tunnel, including an incompressible concrete first layer and a compressible second layer securedly united to the first layer to form a monoblock prefabricated construction element to be integrated in a section of the tunnel, the second layer including a material comprising granulates aggregated by a binder, and cavities sunk into the material.

Abstract: A funicular intended particularly for transporting heavy loads between an upstream station (10) and a downstream station (12), comprises a railway track (14) connecting the upstream station (10) to the downstream station (12) and a vehicle (16) running on the track (14) and drawn by at least one towing cable (30). The vehicle comprises a chassis (50) defining a median longitudinal vertical plane that rests on at least one pendulum running gear, comprising two independent lateral pendulum devices (60) each comprising a secondary pendulum (62) articulated in relation to the chassis (50) and two primary pendulums, each articulated in relation to the secondary pendulum (62). Each lateral pendulum device (60) comprises a plate (64) connected to the chassis (50) via one or several jacks (66) to which the secondary pendulum device (62) is articulated.

Abstract: A funicular intended particularly for transporting heavy loads between an upstream station (10) and a downstream station (12), comprises a railway track (14) connecting the upstream station (10) to the downstream station (12) and a vehicle (16) running on the track (14) and drawn by at least one towing cable (30).

Abstract: A funicular intended particularly for transporting heavy loads between an upstream station (10) and a downstream station (12), comprises a track (14), preferably a railway, connecting the upstream station (10) to the downstream station (12), a vehicle (16) running on the track (14) and at least one towing cable (30) in closed loop having a first towing section (32.1) passing over a first pulley (20.1) of the upstream station and over a first return pulley (26) fixed to the vehicle (16) and a second towing section (32.2), in all ways separate from the first towing section and passing over the return pulley (26) and over a second pulley (20.2) of the upstream station (10).

Abstract: Construction element for creating a tunnel, including an incompressible concrete first layer and a compressible second layer securedly united to the first layer to form a monoblock prefabricated construction element to be integrated in a section of the tunnel, the second layer including a material comprising granulates aggregated by a binder, and cavities sunk into the material.

Abstract: The wheeled vehicle enables heavy loads that are mounted on low-height legs to be lifted and transported. Indeed, it is provided with a plurality of wheeled modules (6, 7, 19) that are articulated to each other and have large-diameter wheels. The means for raising the load are centrally placed relative to the longitudinal axis of the wheeled modules. The raising thereof by central jacks makes it possible to lift the load (3) and the loading platform (20) thereof, the ends of which rest on each of the end wheeled modules (46, 47) by way of articulated jacks that control the height of the loading platform (20). Application to the transfer of hoods for waste containers to be stored.

Abstract: The invention relates to a device (100) for calibrating the temperature of a fiber-optic temperature sensor, with which an optical fiber (10) of a fiber-optic temperature sensor is to be provided. The device (100) comprises a device body (101) having a passage (109) through which the optical fiber (10) is to pass, and a means for transferring heat energy. The device (100) further comprises at least one portion (160a), referred to as a first fixed point, which is made from a first material having at least a first predefined temperature at which the state thereof changes. The first fixed point (160a) is thermally connected to the optical fiber (10) when the optical fiber (10) is provided with the device (100). The heat-transferring means is arranged in the device body (101) such that, during the actuation thereof, the heat-transferring means exchanges heat energy with the first fixed point (160a) so as to cause a change in the state thereof at the first predefined temperature.

Abstract: The invention concerns a device (100) for the detection and/or quantitative analysis of hydrogen, intended for monitoring an installation (1). Said device (100) comprises a first measuring optical fiber (10) intended to equip the installation (1), and an optical system (20) optically connected to the first measuring optical fiber (10) and adapted to measure the variation in at least one parameter of the first measuring optical fiber (10). The optical system (20) is adapted to measure the parameter along the first optical fiber (10) according to the principle of Brillouin measurement. The invention also concerns a method using such a device (100).

Abstract: The wheeled vehicle enables heavy loads that are mounted on low-height legs to be lifted and transported. Indeed, it is provided with a plurality of wheeled modules (6, 7, 19) that are articulated to each other and have large-diameter wheels. The means for raising the load are centrally placed relative to the longitudinal axis of the wheeled modules. The raising thereof by central jacks makes it possible to lift the load (3) and the loading platform (20) thereof, the ends of which rest on each of the end wheeled modules (46, 47) by way of articulated jacks that control the height of the loading platform (20). Application to the transfer of hoods for waste containers to be stored.

Abstract: The invention relates to a device (100) for calibrating the temperature of a fiber-optic temperature sensor, with which an optical fiber (10) of a fiber-optic temperature sensor is to be provided. The device (100) comprises a device body (101) having a passage (109) through which the optical fiber (10) is to pass, and a means for transferring heat energy. The device (100) further comprises at least one portion (160a), referred to as a first fixed point, which is made from a first material having at least a first predefined temperature at which the state thereof changes. The first fixed point (160a) is thermally connected to the optical fiber (10) when the optical fiber (10) is provided with the device (100). The heat-transferring means is arranged in the device body (101) such that, during the actuation thereof, the heat-transferring means exchanges heat energy with the first fixed point (160a) so as to cause a change in the state thereof at the first predefined temperature.