Abstract: A lower limb (1) of an ambulatory exoskeleton comprising at least a pelvis segment (10). a leg segment (20) and a foot segment (30), the leg segment (20) being hinged at the First end (21) of same to the pelvis segment (10) and at the second end (24) of same to the foot segment (30). the leg segment (20) comprising a spring element (25) and means (40. 44) for varying the distance (d) separating the ends (21. 24) of the leg segment (20), the means (40. 44) for varying the distance (d) separating the ends (21. 24) of the leg segment (20) being carried by the pelvis segment (10).

Abstract: A device for the photoacoustic characterisation of a gaseous substance, includes a chamber intended to contain the gaseous substance to characterise and into which a light beam is injected. The chamber is delimited, inter alia, by an inner face, on which a part of the light beam is reflected. This inner face is etched so as to have recesses, each recess being delimited laterally by a lateral surface of which a part at least is tilted, with respect to an average plane of the inner face, by a given tilt angle (?).

Abstract: A method for detecting an attack by electromagnetic waves on an electronic chip or system-in-package type device including an attack detection element comprising a GMI-effect electrically-conductive material, including: a) demagnetising the GMI-effect material such that the value of its remanent magnetisation is equal to a predefined value lower than the value of its maximum remanent magnetisation, b) determining a first value of the impedance of the attack detection element, then c) after a time period during which the device might have undergone an attack, measuring a second value of the impedance of the attack detection element by circulating in the GMI-effect electrically-conductive material an alternating current with the same frequency as when determining the first impedance value, d) comparing the first and second values of the impedance of the attack detection element.

Abstract: Fluid transfer membrane (84) including a porous wall (82) of n-doped silicon including pores (54) extending entirely across its thickness, each pore having a diameter of less than or equal to 400 nm and an aspect ratio of greater than or equal to 20.

Abstract: A method is provided for characterizing a part. The method includes a) carrying out non-destructive measurements using a sensor, the sensor being placed on the part or facing the part; b) using the measurements as input data of a neural network; and c) depending on the value of each node of the output layer of the neural network, characterizing the part. The method further includes prior to steps b) and c): constructing a first database, on a first model part; employing a first neural network parametrized by a first training operation, using the first database; constructing a second database, containing experimental measurements of the physical quantity performed on the part to be characterized; a second training operation, using the second database, so as to parametrize a second neural network, using the parametrization of the first neural network. In step c), the neural network used is the second neural network.

Abstract: The present invention relates to a biosensor comprising a plurality of functionalized sets of carbon atoms in the sp2 hybridisation state, its method of preparation and its use, in particular for the detection of ecotoxicological risks, in particular the determination of the toxicity of substances present in an aqueous medium, as well as to the corresponding determination method.

Abstract: A device for measuring a deformation, the device including a deformable body and a strain gauge, the strain gauge including a support in contact with the deformable body and a metallic resistive member in contact with the support, the resistive member having a resistance that varies with a deformation of the deformable body, the support being electrically insulating, porous and being made of at least one support material including at least one refractory, optionally hydrated, ceramic compound.

Abstract: A test device for a detector for detecting gas or a gas/particle mixture, includes a joining means for joining the test device to the detector; a container configured so as to receive a gas or a test gas/particle mixture; a diffusion means associated with the container and designed to diffuse the gas or the test gas/particle mixture in the detector; an energy source; and a radio apparatus able to manage local radio communication in order to remotely trigger the diffusion of the gas or of the test gas/particle mixture in the diffusion means from a control means. A test system comprising at least one test device, at least one radio gateway, a control network comprising a control unit able to remotely control the test device and at least one communication link between the control unit and the radio gateway, said gateway being able to connect the radio apparatus and the control network.

Abstract: A method for producing an at least partially transparent device is provided, including producing, on a first substrate, first and second separation layers one against the other; producing, on the second separation layer, an at least partially transparent functional layer; making the functional layer integral with a second at least partially transparent substrate; forming a mechanical separation at an interface between the separation layers; removing the second separation layer; producing a first at least partially transparent electrode layer on the functional layer; where the materials of the stack are chosen such that the interface between the separation layers corresponds to that, among all the interfaces of the stack, having the lowest adherence force.

Abstract: A method for associating user equipment with base stations of a cellular network, in particular of a heterogeneous network such as a 5G network, uses a multi-agent reinforcement learning (MARL) algorithm. When a user equipment enters the network, the agent associated with this equipment downloads the instance of an association meta model to a coordinating unit, pre-trained by means of reinforcement learning. The agent subsequently constructs a local observation vector, comprising observables relating to the user equipment, and a global observation vector, including observables relating to the environment of this equipment. The local and global observation vectors are projected into the same reference space, the concatenation of the vectors thus projected encoding the state of the agent. It deduces from the model and from this state, an association decision. The model is updated according to a policy gradient method to consider evolution of the environment of the user.

Abstract: Man/machine interface comprising—a glove which comprises o at least one transmitter which is integrated into the glove and which comprises at least one coil for emitting a magnetic field, which coil is arranged on a finger of the glove so that the orientation of the emitted field relative to a reference direction in a reference system connected with the glove changes with that of the finger, o at least one processing circuit which is integrated into the glove and which comprises at least one receiver for receiving the signal emitted by the transmitter, which receiver is configured to process the signal received in order to determine at least the orientation of the coil of the transmitter in the reference system.

Abstract: A multilayer film may be applied preferably against a busbar of a battery module. Such a multilayer film may include at least one encapsulation layer made of plastic and a layer of aqueous gel, configured to be placed facing at least a portion of the busbar, encapsulated at least partially by the encapsulation layer.

Abstract: A laser source includes a semiconductor pad containing an active waveguide arranged on a functionalized substrate having an integrated waveguide. The integrated waveguide is formed from a stack of a first portion and of a second portion. A Bragg grating is arranged in the first portion and is covered by the second portion.

Abstract: A system for monitoring the state of a cable, includes a plurality of reflectometry devices able to inject a test signal at a point of injection into the cable and to measure a signal having propagated back through the cable to the point of injection into the cable, the reflectometry devices being intended to be positioned along the cable so as to divide the cable into successive segments, the system comprising a control unit that is able to communicate with the reflectometry devices and that is configured so as to carry out at least one reflectometry test consisting in injecting a test signal into the cable by means of a first reflectometry device and measuring the test signal, by means of the first reflectometry device, after it has propagated through the cable and been reflected from an impedance discontinuity, the system further comprising a post-processing unit able to communicate with the reflectometry devices and configured to analyze the measurement of the test signal with a view to detecting an ampli

Abstract: Photovoltaic cell comprising, an assembly comprising a substrate, first and second passivation layers covering opposite faces of the substrate and also lateral faces of the substrate, and first and second charge-collecting layers; a first layer of TCO disposed against the first main face of the assembly and such that edges of the first main face of the assembly are not covered by the first layer of TCO; a second layer of TCO covering the whole of the second main face of the assembly; a non-reflective coating partly covering the first and/or second charge-collecting layers on the lateral faces of the substrate and not covered by the second layer of TCO, and also covering the edges of the first main face.

Abstract: The invention relates to a light source comprising a photonic wire having a single-mode core and adapted to support an optical mode which is degenerate in polarization, comprising an emitter of a pair of photons which are intended to be entangled in polarization. The photonic wire comprises a cladding which is asymmetrical in rotation and extends along a principal transverse axis. Furthermore, the light source comprises a correction device adapted to induce by electrostatic effect a mechanical deformation of the photonic wire in a plane parallel to the substrate, along a deformation axis forming an angle of inclination of between 0° and 90°, these values being exclusive, with respect to the principal transverse axis, the mechanical deformation leading to mechanical strains experienced by the emitter, thus improving the degree of entanglement of the photon pair.

Abstract: A device for determining an effective piezoelectric coefficient of a thin film of a material of a sample, includes a source of x-rays incident on the sample; a detector of x-rays diffracted by the sample; a device for positioning the x-ray source and the x-ray detector with respect to the sample; a voltage source making contact with the sample; a device for controlling the voltage source so as to apply an electric field to the sample during an electrical cycle, the electric field generating a strain of the sample and a stress on the sample; a device for measuring a diffraction peak of the x-rays as a function of the electric field applied to the sample during the electrical cycle; a processing device configured to determine the piezoelectric coefficient.

Abstract: A device for receiving and demodulating an amplitude-modulated RF signal, comprising: a first antenna; a first amplifier coupled to the first antenna; a receiving module including: a) a second antenna; b) a second amplifier coupled to the second antenna; c) a phase-shifter coupled to the second amplifier and applying a phase-shift ?; d) a mixer comprising inputs coupled to the phase-shifter and to the first amplifier, and outputting a product of signals received at the input, and wherein the value of the phase-shift ? is such that the device performs a demodulation of the RF signal when a wavefront of the RF signal forms, with an axis of alignment of the antennas, an angle ? having a particular value a which depends on the phase-shift ? and on a distance between the antennas.

Abstract: A phase modulator for a light beam comprising a waveguide having a longitudinal axis, and a piezoelectric actuator to apply a mechanical stress within said waveguide in response to an electrical bias, said actuator comprising a first part covering a first side of the waveguide and having a first axis of symmetry essentially parallel to the longitudinal axis. The actuator comprises a second part covering a second side of the waveguide, said second part having a second axis of symmetry essentially parallel to the longitudinal axis.

Abstract: A method for assembling components includes assembling a first component including solder bumps with a second component including connectors. The assembly of the components is preceded by pre-treating the first and second components wherein the solder bumps are contacted with a pre-treatment liquid configured to at least partially remove an oxide layer initially present on the solder. The pre-treatment liquid is an aqueous solution containing carboxylic acids or polycarboxylic acids. The assembly of the components is carried out after the pre-treatment in the absence of liquid or gas flux.