Abstract: Collimation device for an X-ray detection system, the collimation device comprising: a collimator comprising a substantially planar support made of a material with partial or zero radiotransparency, the support being rotatably movable about an axis of rotation (?) which passes through the support and which is perpendicular to a first face of the support which acts as an X-ray plane of incidence referred to as the main plane of the support (P), the support (D) being provided on the first face with a slit which is completely transparent to X-rays and which is configured to generate an X-ray flow when the collimator is exposed to an X-ray source, the slit extending longitudinally in the main plane of the support along an axis located at a non-zero distance (d) from the axis of rotation (?), the slit extending through the entire thickness of the support.

Abstract: An optical particle detector including at least one channel intended to receive a fluid carrying at least one particle, and across which light rays are intended to pass such that the light rays are partially scattered by the at least one particle, a plurality of photodetectors capable of receiving said scattered light rays, wherein the detector includes at least one optical waveguide configured to collect, at least at one entrance of the waveguide, light rays that were not scattered by the at least one particle and having crossed the channel, and to reinject the unscattered light rays into the channel through at least one exit of the waveguide.

Abstract: A non-invasive method for measuring a physical quantity representative of the elasticity of a material, including: determining the phase velocities of the fundamental mode of the various components of a shear wave generated at the surface of the material, along a measurement axis, the set of pairs, each formed by a frequency f, and the phase velocity Vi of the fundamental mode determined for the frequency fi, forming a dispersion curve of the fundamental mode in a measurement direction parallel to the measurement axis, wherein the index i is an order number of the frequency fi and of the phase velocity Vi, and transforming the dispersion curve into a profile of phase velocities as a function of depth, the phase velocity at a given depth being a physical quantity representative of the elasticity of a material at the depth.

Abstract: An acoustic treatment grid intended to be mounted inside or at the outlet of a duct of a bleed valve of a turbomachine of an aircraft intended to convey a gas flow, the grid comprising a perforated plate and circular orifices traversing the perforated plate along a first direction, the orifices having a diameter and a geometrical center. Each orifice is separated from an adjacent orifice by a space, the length of which is equal to the product of the diameter of said orifice and a spacing coefficient of a value between 1.1 and 6.

Abstract: A method for producing nanostructures having a metal oxide shell, carried by a top face of a substrate whose greatest dimension is greater than or equal to 100 mm by MOCVD metalorganic chemical vapour deposition, including successive steps carried out in a reactor configured for MOCVD deposition of nucleation and growth. The nucleation step includes forming non-contiguous metal nuclei by depositing a metal by MOCVD using a metalorganic precursor on the top face of the substrate and oxidising the metal of the metal nuclei, to form oxidised nuclei and ensure stabilisation of the nuclei. The growth step includes depositing a metal by MOCVD using the metalorganic precursor, to form non-contiguous nanostructures by growth of the oxidised nanostructures, and oxidising the deposited metal of the nanostructures formed in the nucleation to form oxidised nanostructures.

Abstract: The invention relates to a biocell (1) with a biofuel reservoir intended to be brought into contact with a liquid medium and with a fluid medium comprising an oxidant. Said biocell comprises a first electrochemical cell having: an anode (5) comprising a first enzyme capable of catalyzing the oxidation of the biofuel; —a cathode (7) comprising a second enzyme capable of catalyzing the reduction of the oxidant; and —a separating and porous membrane (3), electrically insulating, and permeable to said liquid medium, placed between the anode (5) and the cathode (7). Said biocell (1) being characterized in that it comprises a means for storing the biofuel (3) and for providing the liquid medium to the anode (5), said means comprising a hydrophilic porous material in contact with said anode (5)) and having a basis weight of 500 to 900 g/m2.

Abstract: Discharge grate intended to be mounted inside or at the outlet of a conduit of a discharge valve of a turbine engine of an aircraft, the discharge grate comprising an upstream face intended to receive a gas flow, a downstream face parallel to the upstream face and intended to deliver the gas flow received on the upstream face, and orifices passing through the perforated plate from the upstream face to the downstream face and intended to convey the gas flow through the perforated plate. The discharge grate comprises for each orifice of the perforated plate a tubular channel, coaxial with the orifice with which it is associated, and projecting from the downstream face of the perforated plate.

Abstract: An acoustic treatment grid intended to be mounted inside or at the outlet of a duct of a bleed valve of a turbomachine of an aircraft intended to convey a gas flow, the grid comprising a perforated plate and circular orifices traversing the perforated plate along a first direction, the orifices having a diameter and a geometrical center. Each orifice is separated from an adjacent orifice by a space, the length of which is equal to the product of the diameter of said orifice and a spacing coefficient of a value between 1.1 and 6.

Abstract: Discharge grate intended to be mounted inside or at the outlet of a conduit of a discharge valve of a turbine engine of an aircraft, the discharge grate comprising an upstream face intended to receive a gas flow, a downstream face parallel to the upstream face and intended to deliver the gas flow received on the upstream face, and orifices passing through the perforated plate from the upstream face to the downstream face and intended to convey the gas flow through the perforated plate. The discharge grate comprises for each orifice of the perforated plate a tubular channel, coaxial with the orifice with which it is associated, and projecting from the downstream face of the perforated plate.

Abstract: The present invention relates to a dinuclear molybdenum complex with ligands selected from fatty tertiary amines of formula (I): R—N[(CH2)nR2][(CH2)nR3]??(I) wherein R represents a linear or branched alkyl comprising 3 to 30 carbon atoms, preferably 3 to 20, advantageously 7 to 17 carbon atoms; n, identical or different, represents 2 or 3; R2 and R3, identical or different, represent an O, OR, NR?2, COOR?, or COO group, where R?, identical or different, represents a hydrogen atom or an alkaline or alkaline earth metal, preferably R? is H, preferably R2 and R3, identical or different, represent an OH or NH2 group.

Abstract: A method for analysing a sample uses a resonant support having a surface on which a plurality of separated photonic crystals extends. At least two crystals are configured to capture the same analyte. A resonance wavelength associated with each crystal varies with an amount of analyte in contact with the crystal. The wavelengths define a resonance spectral band between 200-1500 nm. The transmission/reflection of the light is maximum at an associated resonance wavelength. The method includes: illuminating the support in the resonance spectral band, the intensity of the lamination being variable in band; acquiring a measurement image using an image sensor, the image having different regions-of-interest each optically coupled to a photonic crystal; using a reference image representative of an image acquired by the image sensor, when the support is illuminated in the resonance spectral band in a reference configuration; and comparing the measurement image with the reference image.

Abstract: A method for analysing a sample uses a resonant support. The sample extends on the support having a surface on which a plurality of separated photonic crystals extend. The sample extends between a light source and the crystals, wherein a resonance wavelength is associated with each crystal addressing the analyte and the wavelengths of the crystals define a resonance spectral band extending between 2 ?m and 20 ?m. The transmission or reflection of light by each crystal addressing the analyte is maximum at the associated resonance wavelength. The method includes illuminating the support by the light source, the light source emitting an illumination lightwave defining an illumination spectral band which at least partially covers the resonance spectral band, such that a plurality of crystals are simultaneously illuminated; acquiring an image of the support, and then determining the presence of the analyte in the sample from the image.

Abstract: A particle detector includes at least one resonant cavity partially formed at least by a first reflector, a second reflector disposed at a distance from the first reflector and a channel located between the first and second reflectors, the channel being intended to receive at least one fluid comprising particles and to receive at least one light radiation; and at least one detection system having at least one photodetector. The particle detector is configured so that a portion of the light radiation present in the channel escapes from the cavity throughout the second reflector and reaches the detection system, thereby enabling the at least one photodetector to detect leakage of the cavity. The second reflector is a photonic crystal membranes PCM based reflector.

Abstract: An optical particle detector including at least one channel intended to receive a fluid carrying at least one particle, and across which light rays are intended to pass such that the light rays are partially scattered by the at least one particle, a plurality of photodetectors capable of receiving said scattered light rays, wherein the detector includes at least one optical waveguide configured to collect, at least at one entrance of the waveguide, light rays that were not scattered by the at least one particle and having crossed the channel, and to reinject the unscattered light rays into the channel through at least one exit of the waveguide.

Abstract: The present invention relates to a dinuclear molybdenum complex with ligands selected from fatty tertiary amines of formula (I): R—N[(CH2)nR2][(CH2)nR3]??(I) wherein R represents a linear or branched alkyl comprising 3 to 30 carbon atoms, preferably 3 to 20, advantageously 7 to 17 carbon atoms; n, identical or different, represents 2 or 3; R2 and R3, identical or different, represent an O, OR, NR?2, COOR?, or COO group, where R?, identical or different, represents a hydrogen atom or an alkaline or alkaline earth metal, preferably R? is H, preferably R2 and R3, identical or different, represent an OH or NH2 group.

Abstract: A multilayer scintillation detector, includes at least three layers superposed on one another, and each extending parallel to a plane, called the detection plane, wherein each layer is formed by a first material, called a scintillation material, capable of interacting with an ionizing radiation and of forming, following the interaction, a scintillation light in a scintillation spectral band; each layer has a plurality of light guides, respectively extending parallel to the detection plane, according to a length, the light guides being disposed, over all or part of their length, parallel to an axis of orientation; the axis of orientation of the light guides of each layer is oriented, in the detection plane, according to an orientation, the orientations of the respective axes of orientation of at least three layers being different from one another, such that each layer has an associated orientation; and the scintillation material has a first refractive index.

Abstract: A power flow control device intended to be used in a mesh network. The device includes a first voltage source connected between a first terminal (B1) and a third terminal (B3). A second voltage source is connected between a second terminal (B2) and the third terminal (B3). A current source is connected alternately to the first voltage source and the second voltage source and configured to ensure a transfer of energy between the first voltage source and the second voltage source. A switching means is arranged to allow the current source to be connected alternately in parallel with the first voltage source or in parallel with the second current source.

Abstract: A power electronic module (1) including at least one semiconductor (5) that is connected to connection conductors (6, 7), and including a dielectric carrier (10) having both a fixed layer (9), on which at least one of said connection conductors (6) is mounted, and a movable layer (11), the fixed layer (9) and the movable layer (11) exhibiting similar dielectric permittivities and being superposed along at least one surface facing the at least one connection conductor (6).

Abstract: The invention relates to a non-invasive process for evaluating the quality of one or more dense connective tissue(s) in a patient, comprising the following steps: a) Analyzing the profile of the microrelief of a cutaneous replica of a portion of the skin of said patient by at least one of the following step: a1. visually assessing on picture(s) of said cutaneous replica the line shape and the anisotropy of the lines; and/or a2. Determining, on picture(s) of said cutaneous replica, the roughness index of the microrelief with an optical sensor, b) identifying cutaneous replica of “stage 1”, representative of healthy skins, and cutaneous replica of “stage 2” representative of altered skins, a cutaneous replica of stage 2 being indicative of low quality of the one or more dense connective tissue(s) in the patients body.

Abstract: The present invention concerns an in vitro process for diagnosing joint disease in a mammal and/or determining the type of joint disease and/or determining the stage of said disease and/or predicting the course of said disease, comprising the following steps: a) depositing a drop of a synovial fluid sample from said mammal onto a flat substrate made of an inorganic material, such as glass; b) drying the drop deposited in step a); c) measuring at least one parameter indicative of the morphological features of the drop dried in step b), whereby a value for said parameter is obtained, and d) comparing each value measured in step c) with a reference value representative of a reference synovial fluid, characterized in that said parameter is selected from (i) the maximum height (H) of the bead formed on the surface of the drop, (ii) the area of the drop and (iii) the surface profile (Z) of the drop.