Abstract: A method is provided for characterizing a sample, by estimating a plurality of characteristic thicknesses, each being associated with a calibration material. The method includes acquiring an energy spectrum transmitted through the sample, located in an X and/or gamma spectral band; for each spectrum of a plurality of calibration spectra, calculating a likelihood from said calibration spectrum, and from the spectrum transmitted through the sample, each calibration spectrum corresponding to the energy spectrum transmitted through a stack of gauge blocks, each formed of a known thickness of a calibration material; and estimating the characteristic thicknesses associated with the sample according to the criterion of maximum likelihood.

Abstract: The invention relates to the field of localized surface analysis, characterization and modification by electrochemistry. It particularly relates to a portable electrochemical microscopy device, to kits comprising such a portable device, and to uses of the portable device and kits. According to the invention, the portable device comprises: a body having a gripping surface for a user and a bearing surface that can be applied to a surface of a substrate to be analyzed; an electrolytic chamber formed in the body and arranged so as to receive an electrolyte, the electrolytic chamber comprising an opening leading to the bearing surface; and a working probe having a distal end arranged in the electrolytic chamber.

Abstract: A flexible electronic structure includes a first film, made of a first polymer or glass, and a second film, made of a second polymer, in which at least one electronic component is arranged. The second film covers the first film. The flexible electronic structure also includes at least one electrically conductive track arranged between the first film and the second film, and each electrically connected to one of the electronic components, by a respective interconnection element. Optionally, the flexible electronic structure includes a third film, made of a third polymer or glass, covering the second film. The interconnection element is arranged near the neutral plane of the structure, and the structure includes at least one compensation layer, so as to position the neutral plane at a desired location.

Abstract: An assembly includes a solid-oxide pack of the SOEC/SOFC type and a system for clamping the pack. The assembly furthermore includes a coupling system gastight at high temperature, including a clamping base with a first through internal pipe to enable a tube to pass, a support base located in the pipe and having a second through internal pipe, and a seal, having a C shape, positioned against a first end of the support base (92). One of the clamping plates includes a through pipe for gas to pass having a support surface for the seal and a threaded countersink for receiving a thread of the clamping base.

Abstract: A light-emitting diode comprising: a first electrode; a first layer of semiconductor doped to a first conductivity type; a second layer of semiconductor doped to a second conductivity type; a region of radiative recombination arranged between, or at the interface of, the first and second layers; a third layer of semiconductor doped to the second conductivity type; a fourth semiconductor layer arranged between the second and third layers; a second electrode arranged against a side face of the third layer and against only part of a side face of the fourth layer; and wherein the fourth layer forms, in relation to the third layer, an energy barrier of at least 100 MeV.

Abstract: A method for binding photovoltaic cells to a substrate, each photovoltaic cell comprising a rear face and a front face, comprises: providing the substrate, said substrate being flexible and impregnable; impregnating portions of the substrate with a crosslinkable polymer material, said portions being impregnated along the thickness of the substrate, with a view to bonding the photovoltaic cells to the substrate; bringing the rear faces of the photovoltaic cells into contact with the impregnated portions of the substrate; crosslinking the crosslinkable polymer material.

Abstract: The present invention relates to a method for protecting an electronic device against side-channel attacks. The electronic device is configured to execute a cryptographic algorithm comprising operations in a binary finite field GF(2n), n being a positive integer. The algorithm uses at least one secret variable s to be protected. The method includes: determining a random variable k, computing a masked representation M(s, k) of the secret variable s using a masking function M including an exponentiation by 2{circumflex over (?)}k, for each operation involving a sensitive variable v corresponding to the secret variable s or to an intermediate result obtained from the secret variable s, executing the operation from a masked representation M(v, k?) of the sensitive variable v, determining an output variable r from a final result obtained in the form of a masked representation M(r, k?).

Abstract: A method for manufacturing an electromechanical actuator includes providing a primary stack of layers comprising a monocrystalline layer, providing a secondary stack of layers, and forming, in the etching layer, at least three pads. The method further includes encapsulating the three pads by a first encapsulation layer, assembling the primary stack of layers with the secondary stack of layers, removing the first substrate, and forming a movable electrode in the monocrystalline layer.

Abstract: A single-photon source including a monomode photonic wire wherein a single-photon emitter is located, the photonic wire being formed of two coaxial parts that are distinct and spaced from one another along the longitudinal axis, including a lower part resting in contact with a support substrate and including the single-photon emitter.

Abstract: Display device including: an array of pixels comprising several pixel blocks; a video card comprising an input configured to receive a digital signal to be displayed by the array of pixels, and an output coupled to the blocks via at least one main data bus; and wherein: the array of pixels comprises control circuits each associated with one of the blocks, coupled to the main data bus and including a main memory circuit; the video card includes a compression circuit configured to compress, before sending them to the output, the digital data to be displayed by the blocks; each control circuit includes a decompression circuit for decompressing the part of the digital data received by the control circuit before storing them in the main memory circuit.

Abstract: The present description concerns a manufacturing method comprising, for each photodetector of an array of photodetectors of a light sensor, a use of a mask obtained by directed self-assembly of a block copolymer to form, by a first etch step, at least one first structure on the side of a first surface of the photodetector intended to receive light.

Abstract: A system for treating a surface to be treated of a photovoltaic installation formed from one photovoltaic module or from a plurality of juxtaposed photovoltaic modules, the system including an emission source for emitting electromagnetic radiation, the emission source being configured to emit electromagnetic radiation, the system including: a device for moving the emission source, a control unit configured to control the emission source with a view to emitting the electromagnetic radiation for a determined exposure time with a given irradiance towards at least one portion of the surface to be treated, the control unit being configured to control the moving device so as to move the emission source with respect to the surface to be treated until the entire photovoltaic surface has been scanned.

Abstract: A precursor diffusion device configured to diffuse a growth precursor towards an external growth surface included on an external growth member, the diffusion device including a container including at least one porous element having a porosity configured to allow or prevent the passage of a precursor fluid through a thickness of the porous element, the porous element being configured so that the precursor fluid which passes through the thickness of the porous element generates an aerosol by fragmentation of the precursor fluid, the aerosol being formed of droplets of the precursor fluid. Also, a method for depositing a layer on a growth surface by such a diffusion device.

Abstract: An optoelectronic device that includes a substrate and a stack of organic layers that has at least one active layer arranged between a reflective surface and a semi-reflective surface arranged facing one another at a given distance and forming an optical cavity. The device includes at least three groups of pixels, each group of which is characterized by a cavity of a different optical length, the cavity having a number of bilayers arranged between the substrate and said stack of organic layers, each bilayer being formed of a first transparent and conductive layer of a first transparent and conductive material, and of a second transparent and conductive layer of a second transparent and conductive material, in direct contact with the first transparent and conductive layer.

Abstract: The invention relates to a lightweight photovoltaic module (1) comprising: a transparent first layer (2) forming the front face, photovoltaic cells (4), an assembly (3) encapsulating the photovoltaic cells (4), and a second layer (5), the encapsulating assembly (3) and the photovoltaic cells (4) being arranged between the first (2) and the second (5) layer. The invention is characterised in that the first layer (2) comprises a polymer material and has a thickness (e2) of less than 50 ?m, in that the second layer (5) comprises at least one composite material of the prepreg type containing polymer resin and fibres and has a areal weight of less than 150 g/m2, and in that the encapsulating assembly (3) has a maximum thickness (e3) of less than 150 ?m.

Abstract: A microfluidic device includes a single rigid support and a first unit having a first chamber of nonzero volume delimited by walls of the support. A filter separates the first chamber into a first space and a second space, a first channel made in the support and a second channel. The device also includes a second unit including a second chamber, a third channel. The device further includes a first fluidic transfer channel between the first chamber and the second chamber, made in the support and opening on the one hand into said second chamber and on the other hand at a first bypass node in the second channel. The device including first flow switching means arranged for selecting connection of the first chamber to the exterior only, via the second channel only or to the second chamber only, through the first transfer channel.

Abstract: A photovoltaic module includes a transparent first layer forming the front side of the photovoltaic module; a plurality of photovoltaic cells placed side-by-side and electrically connected; a polymer encapsulating assembly able to encapsulate the plurality of photovoltaic cells between a lower portion and an upper portion; a second layer made of a composite material based on polymer resin and on fibres, the encapsulating assembly and the photovoltaic cells being located between the first and second layers, at least the first and second layers defining edges of the photovoltaic module, the plurality of photovoltaic cells being spaced apart by a non-zero distance DA from at least one edge of the photovoltaic module; the photovoltaic module further comprises a third layer made of a composite material based on polymer resin and on fibres, the layer being located below the plurality of photovoltaic cells and above the lower portion of the encapsulating assembly and forming at least one peripheral strip extending f

Abstract: Method for manufacturing an aluminium alloy part by additive manufacturing comprising a step during which a layer of a mixture of powders is locally melted and then solidified, characterised in that the mixture of powders comprises: first particles comprising at least 80% by mass of aluminium and up to 20% by mass of one or more additional elements, and second yttria-stabilized zirconia particles, the mixture of powders comprising at least 1.5% by volume of second particles.

Abstract: A method for determining parameters of a simplified model of an energy storage system, including an energy storage device and a conversion device, the system being modelled by a complex model including models of the energy storage and conversion devices; the complex model receiving a setpoint power Pac_sp and a state of charge SOCp at input and providing the state of charge SOC of the storage device and the power Pac at the output of the storage device at output; the method including implementing simulations of the energy storage system using the complex model; calculating (a) a table of the variation in the state of charge of the system as a function of the setpoint power and of a state of charge, (b) a table of maximum power as a function of the state of charge; (c) a table of minimum power as a function of the state of charge.

Abstract: A micrometric speaker includes a frame, an electromechanical transducer, and a mechanical-acoustic transducer comprising a rigid plate movably mounted in the frame. The electromechanical transducer comprises two piezoelectric actuators and two elastic strips. The frame comprises a central crossmember from which the two strips extend until engaging two lateral coupling edges of the mechanical-acoustic transducer, and the mechanical-acoustic transducer comprises two linearising springs each extending from one of the lateral edges to the rigid plate, to enable, during a deformation of the strips, a movement of the two lateral edges to the central crossmember and reduce the longitudinal constraints applied to the strips during their deformation due to their “recessed-guided” bending configuration.