Abstract: A system for collecting particles having a suctioning device and a chamber for centrifugating and collecting particles. The centrifugation chamber having a guiding edge as well as an air inlet and an air outlet. The device having an assembly including an air suctioning conduit, a member including a guiding and receiving system, at least one guiding edge of the chamber, the member being mobile relative to the conduit between a first position, wherein the at least one guiding edge can be guided and received in the guiding and receiving system and a second position for collecting particles, where the air outlet of the chamber is applied on an end of the conduit.

Abstract: A device, in particular for a biological sample grinding apparatus, comprising a first enclosure comprising an internal chamber intended to receive a material capable of producing cold by sublimation under normal temperature and pressure conditions and comprising an opening making it possible for a fluidic communication with an internal chamber of a second enclosure through an opening of it. The device further comprising an air circuit making the outside air communicate with the internal chamber of the first enclosure, a blasting module making it possible for an air circulation in the air circuit from the outside up into the internal chamber of the first enclosure.

Abstract: A microscope comprising a first turret bearing a plurality of lenses and a second turret bearing a plurality of filtering modules, the first turret and the second turret being borne on the same pivot and mounted to rotate, independently of each other, about this pivot, each lens of the first turret and each filtering module of the second turret being able to be arranged by rotation of the first turret and of the second turret into an active position of use in which a filtering module of the second turret is inserted into the optical path between a lens of the first turret and a detector.

Abstract: The invention relates to an installation (1) for assembling fuel cell membranes comprising: a first station (A1) for storing electrode membranes, a second station (A2) for storing reinforcing membranes, a station for stacking the membranes of the first (A1) and second (A2) storage stations, and a station (P) for pressing and heating a membrane assembly, means for conveying and handling (B1, B2) the membranes of the first (A1) and second (A2) storage stations, stacking of the stacking station and membrane assembly of the pressing and heating station.

Abstract: A system for collecting particles having a suctioning device and a chamber for centrifugating and collecting particles. The centrifugation chamber having a guiding edge as well as an air inlet and an air outlet. The device having an assembly including an air suctioning conduit, a member including a guiding and receiving system, at least one guiding edge of the chamber, the member being mobile relative to the conduit between a first position, wherein the at least one guiding edge can be guided and received in the guiding and receiving system and a second position for collecting particles, where the air outlet of the chamber is applied on an end of the conduit.

Abstract: An image processing method using a first image sensor covering the visible range and a second sensor covering the infra-red range. The method includes a) acquiring a first image I1 of said given zone of space by means of the first image sensor, b) acquiring a second image I2 of said given zone of space by means of the second image sensor, c) performing a decomposition of the first image I1 so as to obtain at least one luminance image I1L, d) obtaining an image If resulting from digital fusion of the luminance image I1L and of the second image I2, e) adding colour information to the fusion image If or during the fusion stage d).

Abstract: A unit for grinding biological samples, comprising a grinding device including at least two tubes having different volumes, suitable for being mounted on a support of the grinding device, each tube comprising an inner space having a height (h) along the axis of the corresponding tube, and being intended to contain samples to be ground, means for driving the support in a precession movement, the support having an axis the position of which varies by describing a cone, each tube being subjected to a movement (d) defined by the projection, onto the axis of said cone, of the distance between the extreme positions of a same point of the tube during the precession movement.

Abstract: A lighting module, particularly for a fluorescence microscope, comprising a tubular body that has a light source at a first end and a lens which is inserted from a second end that lies opposite the first end, onto an annular shoulder inside the body, wherein a filter support is fitted onto the lens by means of an elastic member that is axially pre-stressed and axially locked by a stop ring of the second end of the body.

Abstract: An image processing method using a first image sensor covering the visible range and a second sensor covering the infra-red range. The method includes a) acquiring a first image I1 of said given zone of space by means of the first image sensor, b) acquiring a second image I2 of said given zone of space by means of the second image sensor, c) performing a decomposition of the first image I1 so as to obtain at least one luminance image I1L, d) obtaining an image If resulting from digital fusion of the luminance image I1L and of the second image I2, e) adding colour information to the fusion image If or during the fusion stage d).

Abstract: An optical filtering device, in particular for remote gas detection, including a member comprising a tubular passage accommodating a plurality of reflective structures capable of reflecting infrared wavelengths, said structures being elongated along an axis of the tubular passage and arranged around the axis. The reflective structures comprise means of filtering by absorption of bands of different wavelengths located in the infrared spectral band.

Abstract: A portable device for collecting particles and microorganisms is provided. The device includes a cyclone enclosure for centrifuging air, external air inlet for admitting air into the enclosure, and air outlet connected by a coupling to an air inlet filter of an individual motorized respiratory protection appliance.

Abstract: An optical filtering device, in particular for remote gas detection, including a member comprising a tubular passage accommodating a plurality of reflective structures capable of reflecting infrared wavelengths, said structures being elongated along an axis of the tubular passage and arranged around the axis. The reflective structures comprise means of filtering by absorption of bands of different wavelengths located in the infrared spectral band.

Abstract: A unit for grinding biological samples, comprising a grinding device including at least two tubes having different volumes, suitable for being mounted on a support of the grinding device, each tube comprising an inner space having a height (h) along the axis of the corresponding tube, and being intended to contain samples to be ground, means for driving the support in a precession movement, the support having an axis the position of which varies by describing a cone, each tube being subjected to a movement (d) defined by the projection, onto the axis of said cone, of the distance between the extreme positions of a same point of the tube during the precession movement.

Abstract: A detector device for optically detecting a gas in a zone of space under observation, the device comprising a camera and means for continuously detecting at least one gas in the observed zone by analyzing absorbance in a plurality of different spectral bands. The device further comprises a matrix of micromirrors that are individually steerable between at least two positions, in a first of which they reflect the radiant flux coming from the observed zone to the camera for detecting gas in said spectral bands, and in a second of which they reflect the radiant flux coming from the observed zone to a Fourier transform infrared spectroscope.

Abstract: The invention relates to a device (7) for collecting particles and microorganisms present in ambient air, the device comprising a cyclone enclosure (8) for centrifuging air, the enclosure being of conical or frustoconical shape, external air inlet means (16) for admitting air into the enclosure (8), and air outlet means connected by coupling means (19, 20, 21) to air inlet filter means (4) of an individual motorized respiratory protection appliance (A).

Abstract: A detector device for optically detecting a gas in a zone of space under observation, the device comprising a camera and means for continuously detecting at least one gas in the observed zone by analyzing absorbance in a plurality of different spectral bands. The device further comprises a matrix of micromirrors that are individually steerable between at least two positions, in a first of which they reflect the radiant flux coming from the observed zone to the camera for detecting gas in said spectral bands, and in a second of which they reflect the radiant flux coming from the observed zone to a Fourier transform infrared spectroscope.

Abstract: An appliance for rapidly vibrating test tubes containing samples to be ground up, the appliance comprising an electric motor (12) for driving rotation of a disk (16) that is provided with an eccentric pin (17), the appliance being characterized in that the test tubes (23) are perpendicular to the eccentric pin and are held by a clamp (21) mounted on a support (20) that is substantially parallel to the eccentric pin, being connected to a fixed baseplate via a Cardan type hinge (15) having two mutually perpendicular axes of rotation (X and Y), one of which axes (Y) is substantially parallel to the eccentric pin (17) and connects the support (20) to the other axis (X) of the hinge (15) that prevents the support (20) from moving in rotation about a perpendicular axis (Z). The support (20) is connected to the eccentric pin (17) by a link (19).

Abstract: The invention relates to a device (7) for collecting particles and microorganisms present in ambient air, the device comprising a cyclone enclosure (8) for centrifuging air, the enclosure being of conical or frustoconical shape, external air inlet means (16) for admitting air into the enclosure (8), and air outlet means connected by coupling means (19, 20, 21) to air inlet filter means (4) of an individual motorized respiratory protection appliance (A).

Abstract: A device for analyzing materials by plasma spectroscopy is of the portable and independent type, comprising a housing (10) containing a laser generator (18) that emits laser pulses that are focused on the surface of a material to be analyzed by means of a parabolic mirror (32) that is movable in translation inside the housing in order to perform a series of spot measurements along a scan line on the surface of the material to be analyzed and in order to take a measurement from a calibration sample (50) mounted in the measurement endpiece (22) of the housing (10).

Abstract: Method of quantifying an analyte in a liquid medium by means of magnetic particles functionalized by specific ligands of the analyte being quantified, consisting in applying a magnetic field to a liquid medium for a time period several times shorter than that of the reaction between the analyte being quantified and the ligands of the magnetic particles, in measuring the optical density of the liquid medium after applying the magnetic field, in repeating this cycle of applying the magnetic field and of measuring the optical density several times over the duration of the reaction between the analyte and the ligands, in calculating, by extrapolation, a limiting value for the optical density for an infinite magnetic field application time and in deducing therefrom the concentration of the analyte in the liquid medium.