Abstract: Organic oligomers of acylglycerol having general formula (I): Formula (I), in which M1 and Q1 are organic groups; G11 is a hydroxylpropyl group; G12 and G13 are ?/??-acylglycerols; n is a natural integer from the range [0; 8]; m is a natural integer from the range [0; 4]; and p is a natural integer from the range [0; 3].

Abstract: The invention relates to a static converter connected between an electrical voltage source and an electrical load, said converter including a main static conversion arm comprising an output electronic switching cell and a backup conversion arm having identical structures. The static converter includes a pair of fuses connected on either side of the main arm, and a switching circuit comprising a connection element connecting the backup arm to the connection points between the fuses and the input terminals of the main arm, such that, when a fault occurs on one of the switching cells forming the main arm, a stable conductive link is established between the two fuses, the main arm is isolated by the two fuses, and the backup arm is spontaneously connected to the output of the main arm via the conductive line and replaces the main arm.

Abstract: A method of oxidative molecular cleavage of a fatty compound, includes:—forming a liquid composition, referred to as a fatty composition, consisting of at least one aliphatic carboxylic acid, the fatty composition including the fatty compound; characterized in that it then involves:—adding, to the fatty composition, a solution of at least one quaternary ammonium salt in water capable of forming an emulsion from the fatty compound and water, then;—adding, to the emulsion, a liquid solution of at least one tungstophosphoric acid in a composition including hydrogen peroxide (H2O2), in such a way as to form, in situ in the emulsion, a quantity of a phase-transfer catalyst, formed from tungstophosphoric acid and at least one quaternary ammonium from the quaternary ammonium salt(s), and to allow the oxidative molecular cleavage of the fatty compound.

Abstract: An extrinsic optical fiber device for measuring a physical parameter, includes: a light source, of central wavelength ?, an optical fiber projecting, a unit for detecting an interferometric signal, the interferometric signal including the information about the physical parameter to be determined, elements for modulating a signal emitted by the light source, elements for calculating the physical parameter on the basis of the interferometric signal measured by the detection unit. The modulated signal from the light source includes an alternating component including a double frequency modulation generated by the modulation elements. The main application of this device is the measurement of the displacement of a target.

Abstract: A device for purifying liquid wastewater, includes: a container suitable for retaining a granulate consisting of solid particles, and for enabling the contact between the solid particles of the granulate and the liquid wastewater flowing in the container between: an inlet for the liquid wastewater to flow into the container, and an outlet for substantially decontaminated water to flow out of the container; a community of microorganisms extending so as to be in contact with the solid particles of the granulate; at least one live benthic invertebrate whose mean size is greater than 250 ?m and which is distributed in the granulate; and at least one live benthic invertebrate whose mean size is from 50 ?m to 250 ?m and which is distributed in the granulate, characterized in that the community of macrobenthic organism and meiobenthic organism species includes a proportion of 60% to 80% of invertebrate detrivorous organisms.

Abstract: A method of oxidative molecular cleavage of a fatty compound, includes: —forming a liquid composition, referred to as a fatty composition, consisting of at least one aliphatic carboxylic acid, the fatty composition including the fatty compound; characterised in that it then involves: —adding, to the fatty composition, a solution of at least one quaternary ammonium salt in water capable of forming an emulsion from the fatty compound and water, then; —adding, to the emulsion, a liquid solution of at least one tungstophosphoric acid in a composition including hydrogen peroxide (H2O2), in such a way as to form, in situ in the emulsion, a quantity of a phase-transfer catalyst, formed from tungstophosphoric acid and at least one quaternary ammonium from the quaternary ammonium salt(s), and to allow the oxidative molecular cleavage of the fatty compound.

Abstract: The invention relates to a method for determining a state of health of an electrochemical device in particular having improved reliability. Said method in particular consists of: applying (10) to said electrochemical device an input signal comprising electrical excitations of different categories, and measuring an output signal (20) including the response signals to each electrical excitation; estimating (41) at least one first parameter from an electrical excitation belonging to a first category and the corresponding response signal; estimating (43) said at least one physicochemical parameter representative of the physicochemical behavior of the device from an electrical excitation of a different category, of the corresponding response signal and said first estimated parameter; estimating (50) said state of health of the electrochemical device as deviation between the previously estimated value of the physicochemical parameter and a reference value.

Abstract: The invention relates to a method for more precisely characterizing an electrical system by impedance spectrometry. The method consists of applying an input signal to the electrical system that comprises a sequence of sinusoidal perturbations, so as to scan a primary series (A) of frequencies; measuring an output signal of the electrical system in response to the input signal for each of the applied perturbations; and estimating a characteristic size of the impedance of the electrical system for each of the applied perturbations; wherein the perturbations of the sequence are applied so as to scan, turn by turn, a plurality of sub-series (A1, . . . , An) of frequencies resulting from the primary series (A), each sub-series of the plurality being interlaced with at least one other sub-series of the same plurality.

Abstract: A process for decarbonation of particles of raw meal, to be burnt in a clinkering kiln at a cement plant, the process includes: a) decarbonation of particles of raw meal, in a fluidised bed heat exchanger, the particles being suspended in a rising carrier gas including carbon dioxide, the fluidised bed heat exchanger having a solid heat carrier circulating counter-current relative to the carrier gas, to provide an effluent gas including carbon dioxide and decarbonated raw meal; b) separating the effluent gas and the decarbonated raw meal c) separating the effluent gas into a first and second part; cooling the first part of the effluent gas and recycling to provide carrier gas, d) isolating the second part of effluent gas e) recovering and re-heating the heat carrier and recirculating to step (a).

Abstract: A method for producing a thermal barrier in a multilayered system for protecting a metal part made of superalloy, by producing a thermal treatment by flash sintering protection materials in layers superposed on the metal part in an SPS machine enclosure. The layers contain, on a superalloy substrate, at least two layers of zirconium-based refractory ceramics. A metal part is produced according to a SPS flash sintering method and contains a superalloy substrate, a metal sub-layer, a TGO oxide layer and the thermal barrier formed by the method. A first ceramic is an inner ceramic designed to have a substantially higher expansion coefficient. An outer ceramic is designed to have at least lower thermal conductivity, and at least one of a sintering temperature or maximum operating temperature that is substantially higher. The thermal barrier has a composition and porosity gradient from the metal sub-layer to the outer ceramic.

Abstract: The invention relates to a device having a polyphase electrical machine, wherein a plurality of inverters (36, 37, 38), which are controlled by an interlaced control modulated by pulse width to an identical cutoff frequency, provide, on the phase outputs thereof, an alternating voltage signal having an identical fundamental frequency, amplitude and phase to an electrical machine (2) that comprises at least two separate so-called star windings (33, 34, 35), each star winding being supplied by a related inverter, each phase output of which is connected to a phase circuit that includes the phase winding of the star winding, the device being characterized in that each phase circuit for a star winding has a negative mutual inductance with the homologous phase circuit of another star winding.

Abstract: The invention relates to a static converter connected between an electrical voltage source (4) and an electrical load (6), said converter including a main static conversion arm (16) comprising an output electronic switching cell and a backup conversion arm (18) having identical structures. The static converter includes a pair of fuses (70, 72) connected on either side of the main arm (16), and a switching circuit (26) comprising a connection element (80) connecting the backup arm (18) to the connection points between the fuses and the input terminals of the main arm, such that, when a fault occurs on one of the switching cells forming the main arm (16), a stable conductive link is established between the two fuses (70, 72), the main arm (16) is isolated by the two fuses (70, 72), and the backup arm (18) is spontaneously connected to the output of the main arm (18) via the conductive line and replaces the main arm.

Abstract: A power rectifying circuit for an electric current signal supplied by an alternating power source, which includes: two separate switching assemblies adapted to be connected to a power terminal of the source, wherein at least one switching assembly includes a plurality of boost cells in cascade, each boost cell including a diode, a switch mechanism and a capacitor, the capacitors of the two terminal boost cells of the switching assemblies having one terminal in common. The circuit may include two assemblies of boost cells, and can be used in electric systems onboard aircrafts.

Abstract: An extrinsic optical fiber device (1) for measuring a physical parameter, includes: a light source (10), of central wavelength ?, an optical fiber projecting (13), a unit (15) for detecting an interferometric signal, the interferometric signal including the information about the physical parameter to be determined, elements (17) for modulating a signal emitted by the light source, elements (18) for calculating the physical parameter on the basis of the interferometric signal measured by the detection unit (15). The modulated signal from the light source (10) includes an alternating component including a double frequency modulation generated by the modulation elements. The main application of this device is the measurement of the displacement of a target (2).

Abstract: A method for depositing a hard metallic chrome coating or similar metal by chemical vapor deposition on a metallic substrate, includes: a) preparing a solution containing, in an oxygen-free solvent, i) a molecular compound of the bis(arene) family that's a precursor of the deposited metal with a decomposition temperature 300° C.-550° C., and ii) a chlorinated additive; b) introducing the solution as aerosol into a heated evaporator at a temperature between the solvent boiling temperature and the precursor decomposition temperature (PDT); and c) driving the vaporized aerosol from the evaporator towards a CVD reactor including a susceptor carrying the substrate, heated above the PDT, up to 550° C., the evaporator and CVD reactor being subjected to atmospheric pressure. This DLI-CVD method performed at low temperature and atmospheric pressure enables continuous industrial treatment of large metallic plates, producing hard, monolayer or nanostructured multilayer metallic coatings.

Abstract: A device (10) for the optical measurement of a physical parameter includes: a laser light source (11) for generating a measurement beam in the direction of a target (20) and for receiving the measurement beam reflected by the target; the measurement beam travelling along an optical path whose variation depends on the physical parameter to be determined and the laser light source having an optical cavity (111); a motion sensor (14) for the laser light source (11); elements (15) for calculating the physical parameter from a signal measured at the laser light source (11) and a signal measured by the motion sensor (14).

Abstract: A method of stimulating the natural defense system of a plant utilizing an isolated strain of Streptomyces beta-vulgaris is described. The method includes administering to the plant an effective amount of the Streptomyces beta-vulgaris strain, or an active compound obtained from culturing the strain, which stimulates the expression of the plant defense genes such as PR1 and PDF1.2a.

Abstract: The present invention relates to a process for washing a polysaccharide-based material which has been subjected to oxidation by at least one oxidizing agent, the said process comprising a first stage of washing with a first densified fluid which is inert with regard to the said oxidizing agent, characterized in that the first stage is followed by a second stage of washing with a washing composition comprising at least one second inert densified fluid and at least one alcohol. The said process according to the invention can additionally comprise a third stage of washing with a third inert densified fluid in order to remove the said alcohol deposited on the said polysaccharide-based material during the said second washing stage. Preferably, the said inert densified fluids are supercritical carbon dioxide.

Abstract: A process for oligomerizing isocyanates includes a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is carried out in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m3/° C.

Abstract: A method for depositing a non-oxide ceramic-type coating based on chrome carbides, nitrides or carbonitrides, by DLI-CVD at low temperature and atmospheric pressure on a metallic substrate, includes: a) a solution is prepared, containing a molecular compound which is a precursor of the metal to be deposited, belongs to the bis(arene) family, and has a decomposition temperature of 300° C.-550° C., the compound being dissolved in an oxygen atom depleted solvent; b) the solution is introduced as aerosol into a heated evaporator at a temperature between the solvent boiling temperature and the precursor decomposition temperature; and c) the precursor and the vaporized solvent are driven from the evaporator towards a CVD reactor having cold walls, with a susceptor carrying the substrate to be covered and heated to a temperature higher than the decomposition temperature of the precursor, to a maximum of 550° C., the evaporator and the CVD reactor being at atmospheric pressure.