Abstract: The invention relates to the use of a ternary alloy having the formula SixTiyNiz, wherein x, y and z are natural numbers, for use in electrolysis and photoelectrolysis, in particular photo-oxidation of water. One aspect of the invention relates to a method for the manufacture of an electrode, the method comprising a step of heating a carrier comprising a surface having a layer of silicon on which a layer of TiO2 is disposed, the layer of TiO2 being covered with a layer of NiO; the heating step being carried out at a temperature above 1,000° C., and preferably between 1,150° C. and 1,250° C. The invention also relates to an electrode comprising a carrier, said electrode having either: an outer surface on which particles of a ternary alloy having the formula SixTiyNiz are positioned, wherein x, y and z are natural numbers, and wherein the particles form protrusions; or an outer surface consisting of a layer of said alloy, the layer comprising protrusions.

Abstract: A virtual reality data-processing device, intended to be worn on the head of a user is disclosed. The device renders, in a field of view of the data-processing device, a virtual interaction interface, at least one part of the virtual interaction interface being rendered superimposed on a tangible device, when the tangible device is located in the field of view of the data-processing device, track at least one body part of the user likely to interact via the virtual interaction interface, detect at least one user interaction on a virtual element of the virtual interaction interface, when the at least one body part of the user is close to or in contact with the tangible device. The development also relates to a system and a method for processing virtual reality data.

Abstract: An active light-emitting layer composition including a thermally activated delayed fluorescence (TADF) molecule with TADF properties as a host material and a luminescent molecule with circularly polarized (CP) properties as a dopant. Also, a light-emitting device, such as an organic light-emitting diodes (OLED), including the active light-emitting layer made of this composition.

Abstract: The present invention relates to compounds simultaneously having thermally activated delayed fluorescence (TADF), circularly polarised luminescence (CPL) and aggregation-induced emission enhancement (AIEE) properties. The invention also relates to the use of such compounds as a photocatalyst or as a dopant, in particular in the emitting layers of light-emitting diodes (OLEDs), as well as light-emitting devices or light-emitting diodes (OLEDs) comprising such compounds.

Abstract: Some embodiments are directed to a method of transmission from at least one transmit antenna to all or some of n reception antennas including at least one transmission step suitable for transmitting a first binary information item by using the absence of focusing from the transmit antenna to any one of the n reception antennas, during a predetermined integer number k of symbol times and/or a modulation of the power transmitted by at least one transmit antenna, participating in a coding of a second binary information item. Some other embodiments are directed to a receiver-decoder suitable for reception according to the method.

Abstract: A polarizing screen includes an arrangement of at least one, electrically conductive, polarizing cell, which at least one cell is frequency- and polarization-selective, for transforming the polarization of the electric component E of the transverse electromagnetic (TEM) wave, received with linear polarization, into an electromagnetic wave with circular polarization. The four lateral walls of each section of waveguide forming a polarizing cell are each open over their entire length due to a median continuous slot, parallel to the direction of propagation of the incident electromagnetic wave, so as to form four angled electrically conductive plates.

Abstract: Decoder, system and method for decoding multimedia data at the level of a terminal by managing the energy available for decoding comprising a decoder of the multimedia data, characterized in that said decoder comprises at least one low-consumption decoding chain comprising an activation module suitable for activating a first low-consumption decoding chain or loop filter and a low-consumption interpolation chain as a function of at least one parameter representative of constraints of user energy and/or of the mobile terminal and of one or more metadata Md associated with a decoding complexity and/or with a decoding energy.

Abstract: Some embodiments are directed to a method for correcting a movement trajectory in a movement assistance device of a person equipped with at least one sensor device and a control unit, the method including the steps of measuring a distance between said at least one sensor and an obstacle, a separation of a coordinate system representing pairs of values of translational speeds and rotational speeds into two half-planes, by at least one separating limit of the coordinate system, into a travel exclusion zone and a permissible travel space, a definition of a second rotational speed and a second translational speed by the projection of a command point into the delimited permissible space.

Abstract: A method is provided for transmitting a sequence of data symbols including at least two data symbols of distinct values, delivering an electromagnetic wave carrying an orbital angular momentum. The method includes, for at least one data symbol to be transmitted: a bijective selection of an order of orbital angular momentum associating, with each distinct value of a data symbol, a distinct order of orbital angular momentum, and delivering a selected order of orbital angular momentum that is representative, by bijection, of the value of the at least one data symbol to be transmitted; and transmitting the electromagnetic wave carrying an orbital angular momentum, the order of orbital angular momentum of which corresponds to the selected order of orbital angular momentum.

Abstract: Decoder, system and method for decoding multimedia data at the level of a terminal by managing the energy available for decoding comprising a decoder of the multimedia data, characterized in that said decoder comprises at least one low-consumption decoding chain comprising an activation module suitable for activating a first low-consumption decoding chain or loop filter and a low-consumption interpolation chain as a function of at least one parameter representative of constraints of user energy and/or of the mobile terminal and of one or more metadata Md associated with a decoding complexity and/or with a decoding energy.

Abstract: The invention relates to a method for manufacturing a titanium alloy having superelastic properties and/or shape memory for biomedical use, which comprises the steps of: preparing an ingot by melting the various metals that form the desired alloy in a vacuum; optionally homogenizing the ingot in a vacuum by high-temperature annealing (higher than 900° C.); first quenching; mechanical shaping (rolling, drawing, machining or the like); heat treatment for redissolution in beta phase beyond the beta transus temperature (until a second temperature and then maintaining same for a certain time); and second quenching; characterized in that said heat treatment phase is carried out in a gaseous atmosphere and also constitutes a surface treatment suitable for forming on the surface a layer of nitride, carbonitride, oxide, oxynitride or the like.

Abstract: A radiating phase-shifting cell is designed to favour the excitation of an equivalent resonance of the “slot” type in a first part of the phase cycle, and to favour an equivalent resonance of the “microstrip” type in a second part of the phase cycle. This property notably allows the bandwidth of the phase-shifting cells to be optimized. A phase range of 360° can in effect be segmented into two sub-ranges of around 180°. This segmentation into two sub-ranges is made possible by the complementarity of the resonant modes of the slot or microstrip type. The radiating phase-shifting cell is notably applicable to reflector arrays for an antenna designed to be installed on a space craft such as a telecommunications satellite or on a terrestrial terminal for satellite telecommunications or broadcasting systems.

Abstract: According to a thermomechanical treatment process for a titanium alloy including between 23 and 27% niobium in atomic proportion, between 0 and 10% zirconium, and between 0 and 1% oxygen, nitrogen and/or silicon, the following steps are performed: a) an increase of a sample of the alloy to a temperature higher than 900° C., b) a fast quench, c) a severe cold strain, d) an ageing treatment at a temperature included between 200 and 600° C., the time of the ageing treatment being included between 10 seconds and 10 minutes. Alloy obtained by this process and prostheses made from such an alloy.

Abstract: Process for labelling a material based on at least one organic thermoplastic or thermosetting polymer matrix comprising a step that consists in incorporating therein, by dispersion during its manufacture or its formation, at least one compound based on at least one photoluminescent rare earth in a concentration that renders this compound detectable under UV irradiation, said compound being a coordination polymer that is in the form of a crystallite obtained by reaction of at least one photoluminescent rare-earth ion with at least one unsaturated organic ligand.

Abstract: The invention relates to a method for manufacturing a titanium alloy having superelastic properties and/or shape memory for biomedical use, which comprises the steps of: preparing an ingot by melting the various metals that form the desired alloy in a vacuum; optionally homogenizing the ingot in a vacuum by high-temperature annealing (higher than 900° C.); first quenching; mechanical shaping (rolling, drawing, machining or the like); heat treatment for redissolution in beta phase beyond the beta transus temperature (until a second temperature and then maintaining same for a certain time); and second quenching; characterized in that said heat treatment phase is carried out in a gaseous atmosphere and also constitutes a surface treatment suitable for forming on the surface a layer of nitride, carbonitride, oxide, oxynitride or the like.

Abstract: A method and apparatus for multicarrier transmission of a signal representing a source signal. The source signal includes symbols including a set of subcarriers, transmitted simultaneously and having pilot subcarriers intended for at least one processing operation for assisting and/or improving decoding in at least one receiver, and data subcarriers, the location in time-frequency space and a reference value of the pilot subcarriers being known to the at least one receiver. The method of transmission includes: a phase of modifying, for a given symbol, the reference value of at least one subset of the pilot subcarriers, by correction data configured to correct phase and/or amplitude for each of the pilot subcarriers of the subset, so as to minimize peak-to-average power ratio, the correction data taking at least three distinct values, a transition between the values of two successive pilot subcarriers of the subset on a frequency axis being constant.

Abstract: A radiating phase-shifting cell is designed to favour the excitation of an equivalent resonance of the “slot” type in a first part of the phase cycle, and to favour an equivalent resonance of the “microstrip” type in a second part of the phase cycle. This property notably allows the bandwidth of the phase-shifting cells to be optimized. A phase range of 360° can in effect be segmented into two sub-ranges of around 180°. This segmentation into two sub-ranges is made possible by the complementarity of the resonant modes of the slot or microstrip type. The radiating phase-shifting cell is notably applicable to reflector arrays for an antenna designed to be installed on a space craft such as a telecommunications satellite or on a terrestrial terminal for satellite telecommunications or broadcasting systems.

Abstract: The present invention relates to a method for marking at least one material comprising a non-organic matrix, characterized in that it comprises at least one step that involves incorporating in said material during the production thereof at least one compound containing at least one luminescent lanthanide in a concentration such that said compound in said material can be detected under UV radiation, wherein said compound is a co-ordination polymer in the form of a crystallite obtained by reacting at least one luminescent lanthanide ion with at least one unsaturated organic binder.

Abstract: A method and apparatus for multicarrier transmission of a signal representing a source signal. The source signal includes symbols including a set of subcarriers, transmitted simultaneously and having pilot subcarriers intended for at least one processing operation for assisting and/or improving decoding in at least one receiver, and data subcarriers, the location in time-frequency space and a reference value of the pilot subcarriers being known to the at least one receiver. The method of transmission includes: a phase of modifying, for a given symbol, the reference value of at least one subset of the pilot subcarriers, by correction data configured to correct phase and/or amplitude for each of the pilot subcarriers of the subset, so as to minimise peak-to-average power ratio, the correction data taking at least three distinct values, a transition between the values of two successive pilot subcarriers of the subset on a frequency axis being constant.

Abstract: A composition for the preparation of articles of calcium oxide, comprising calcined calcium oxide and an organic phase consisting of at least one polyol in an anhydrous medium. The composition may be used to form linings for molds and crucibles intended to come into contact with molten metals of groups IV and V of the periodic table.