Abstract: A detection device, includes: a sensor for detecting a fluid of interest receiving the fluid. The sensor delivers a concentration of the fluid of interest, and a wireless communication module is configured to transmit said concentration of the fluid of interest. An assembly is provided with several devices and a installation with the devices arranged within a region.

Abstract: The invention relates to a device (100) for the odorization of a gas circulating in a pipeline (200), comprising: a tank (105) for a liquid odorizing compound; a means for detecting (140) differences in pressure between the pipeline (200) and the tank; a means (135) for pressurizing the compound in the tank according to the pressure difference; a microperforated membrane (110) acting as an interface between the tank and an inner volume (115) of the pipeline; and a means (120) for vibrating the microperforated membrane in order to spray the liquid odorizing compound, when it comes into contact with the membrane, into the pipeline.

Abstract: An electronic device includes a body having a threaded portion configured to co-operate with a threaded portion of a duct in a sleeve in order to move the device into a final position when the device is turned. The electronic device also includes a hole punch configured to form a through orifice in a pipe while the device is being turned and to enable the device to be inserted into the final position. The electronic device further includes an electronic module configured to be in contact with a fluid passing through the pipe when the device is in the final position. In addition, the electronic device includes at least one electrical connection connected to the electronic module and passing through the body leading to a top face of the body. The body and the at least one electrical connection form a plug of the duct in the sleeve.

Abstract: A system for generating low-power energy includes a fuel cell supplied by a gas network and a rechargeable energy storage system. An energy generation method and an energy management method implementing such an energy generation system are described.

Abstract: The invention relates to a device (100) for the odorization of a gas circulating in a pipeline (200), comprising: a tank (105) for a liquid odorizing compound; a means for detecting (140) differences in pressure between the pipeline (200) and the tank; a means (135) for pressurizing the compound in the tank according to the pressure difference; a microperforated membrane (110) acting as an interface between the tank and an inner volume (115) of the pipeline; and a means (120) for vibrating the microperforated membrane in order to spray the liquid odorizing compound, when it comes into contact with the membrane, into the pipeline.

Abstract: An electronic device includes a body having a threaded portion configured to co-operate with a threaded portion of a duct in a sleeve in order to move the device into a final position when the device is turned. The electronic device also includes a hole punch configured to form a through orifice in a pipe while the device is being turned and to enable the device to be inserted into the final position. The electronic device further includes an electronic module configured to be in contact with a fluid passing through the pipe when the device is in the final position. In addition, the electronic device includes at least one electrical connection connected to the electronic module and passing through the body leading to a top face of the body. The body and the at least one electrical connection form a plug of the duct in the sleeve.

Abstract: A system for generating low-power energy includes a fuel cell supplied by a gas network and a rechargeable energy storage system. An energy generation method and an energy management method implementing such an energy generation system are described.

Abstract: The system for operating and monitoring a well for extracting or storing an operating fluid, such as natural gas, comprises a production column in which the operating fluid flows, a protective casing arranged around the production column, and a cement sheath interposed between the casing and a rock formation through which the well extends. The system further comprises, outside the casing, between the casing and the cement sheath, a series of electronic units distributed in predetermined positions in a succession of planes perpendicular to the casing and spaced apart axially along the casing. Each electronic unit comprises communication means enabling the electronic unit to communicate with another electronic unit or with a surface terminal, a power supply unit of the electronic unit, and at least one of the following elements: a) a detector unit comprising at least one sensor for sensing a physical or chemical magnitude, and b) a signal processor unit.

Abstract: The invention relates to a nanofiber fabrication method comprising nanofiber growth from a catalyst zone, furthermore comprising the following steps: producing at least one micropattern (11) on the surface of a substrate (1); producing a catalyst zone (50) on the surface of said micropattern; nanofiber growth from the catalyst zone, characterized in that the micropattern (11) comprises a base, at least partially convergent side walls and an upper face, said base being covered with a so-called “poison” layer (4) where no nanofiber growth catalysis effect can take place, the so-called “poison” layer not being present on said upper face; the base being covered with a catalyst layer (5) on the surface of the so-called “poison” layer; the thickness of the “poison” layer and the thickness of the catalyst layer being such that the nanofibers cannot grow either on the side walls or on the base of the micropatterns constructed beforehand.

Abstract: The invention relates to a nanofiber fabrication method comprising nanofiber growth from a catalyst zone, furthermore comprising the following steps: producing at least one micropattern (11) on the surface of a substrate (1); producing a catalyst zone (50) on the surface of said micropattern; nanofiber growth from the catalyst zone, characterized in that the micropattern (11) comprises a base, at least partially convergent side walls and an upper face, said base being covered with a so-called “poison” layer (4) where no nanofiber growth catalysis effect can take place, the so-called “poison” layer not being present on said upper face; the base being covered with a catalyst layer (5) on the surface of the so-called “poison” layer; the thickness of the “poison” layer and the thickness of the catalyst layer being such that the nanofibers cannot grow either on the side walls or on the base of the micropatterns constructed beforehand.