Abstract: The invention relates to a method for estimating the direction of arrival of an electromagnetic wave at an antenna array (2), comprising the steps of: —estimating (202) a covariance matrix of signals acquired by the antenna array (2); —calculating (204) a normalised eigenvector of the covariance matrix; —correlating (205) the normalised eigenvector with a first reference table and a second reference table so as to produce a first correlation spectrum and a second correlation spectrum comprising correlation indices associated, respectively, with different directions of arrival; —constructing (312) a third reference table by linear combination of the first reference table and the second reference table with a polarisation component of the electromagnetic wave in the first direction and the second direction, respectively; —correlating (314) the normalised eigenvector with the third reference table so as to produce a third correlation spectrum comprising correlation indices associated with different directions of

Abstract: An installation for handling and storing biological samples at very low temperatures includes a cartesian robot and an articulated-arm robot having at least five degrees of freedom. A biobank which uses, working jointly, a five-axis or six-axis or seven-axis robot supported by a cartesian robot which moves the five-axis or six-axis robot translationally along at least one row of storage containers, advantageously cryogenic containers each incorporating storage columns or racks with a honeycomb structure, of which the cells are able to house individual sample containers.

Abstract: The invention relates to a method for processing a radio navigation signal originating from a satellite (SAT) and received by a radio navigation receiver comprising a plurality of receive antennas, each antenna being configured to receive signals originating from a satellite of interest (SAT), from at least one jammer and possibly from at least one other satellite (SAT?) in given directions, the method comprising the following steps: detecting (E1), on the basis of the signal received by each antenna, at least one direction of a jamming signal; attenuating (E2, E2?) the detected jamming signal in the detected direction; in which method detecting (E1) the direction of a jamming signal is based on determining a covariance matrix dependent on the signals received by each antenna given by (i), where Z is a matrix of size N×M in which each column corresponds to the signal received by each antenna, N denoting the number of samples acquired during a fixed period ?T and M being the number of antennas.

Abstract: A method comprising steps of: performing spatial filtering (104, 204) causing an attenuation of power of radio signals received by an antenna system in an angular sector (A); detecting (106, 206, 210) that a radio signal is received by the antenna system while the angular sector (A) includes a direction pointing at a satellite (S1) forming part of a constellation of positioning satellites, that the received radio signal is not subject to the attenuation caused by the spatial filtering, and that the received radio signal is in the form of a positioning signal emanating from the satellite (S1); and, following the detection, implementing processing (112, 114, 212, 214) under the assumption that the antenna system has fallen victim to decoying.

Abstract: This invention pertains to improved polyester polyol compositions comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD). Coating compositions based on such TMCD polyester polyols are capable of providing a good balance of the desirable coating properties, such as solvent resistance, acid resistance, retort resistance, microcracking resistance, and bending ability, for metal packaging applications.

Abstract: An installation for handling and storing biological samples at very low temperatures includes a cartesian robot and an articulated-arm robot having at least five degrees of freedom. A biobank which uses, working jointly, a five-axis or six-axis or seven-axis robot supported by a cartesian robot which moves the five-axis or six-axis robot translationally along at least one row of storage containers, advantageously cryogenic containers each incorporating storage columns or racks with a honeycomb structure, of which the cells are able to house individual sample containers.

Abstract: An installation for handling and storing biological samples at very low temperatures includes a cartesian robot and an articulated-arm robot having at least five degrees of freedom. A biobank which uses, working jointly, a five-axis or six-axis or seven-axis robot supported by a cartesian robot which moves the five-axis or six-axis robot translationally along at least one row of storage containers, advantageously cryogenic containers each incorporating storage columns or racks with a honeycomb structure, of which the cells are able to house individual sample containers.

Abstract: This invention pertains to improved polyester polyol compositions comprising 1,3-cyclohexanedimethanol (1,3-CHDM). Coating compositions based on such polyester polyols are capable of providing a good balance of the desirable coating properties, such as solvent resistance, acid resistance, retort resistance, microcracking resistance, and bending ability, for metal packaging applications.

Abstract: This invention pertains to improved polyester polyol compositions containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD). Coating compositions based on such TMCD polyester polyols are capable of providing a good balance of desirable coating properties such as solvent resistance, acid resistance, retort resistance, microcracking resistance, and bending ability. The TMCD coating compositions have particular utility for use in metal packaging applications.

Abstract: This invention pertains to coating compositions based on polyesters containing 2,2,4,4-tetrametbyM,3-cyclobutanediol (TMCD) and modifying polyester polyols. Coatings based on such polyester blends are capable of providing a good balance of the desirable coating properties, such as solvent resistance, acid resistance, retort resistance, crazing resistance, and bending ability, for metal packaging applications.

Abstract: The invention relates to a method for calibrating a receiver comprising a plurality of analog reception channels each including an antenna element of a multi-element antenna, the plurality of analog reception channels comprising a reference channel, the method comprising determining (E1-E4) and correcting (E5), for each analog reception channel other than the reference channel, a phase shift with the reference channel, said determination comprising: calculating (E1) an observed covariance matrix (RZZt,e) representative of the covariance between samples (Zte), collected in parallel on each of the analog reception channels over a period of time, of one or more incident reference radio signals on the multi-element antenna, obtaining (E2) an estimate () of a reference covariance matrix representative of the covariance between samples of said incident radio signal(s) which would be collected in parallel on each of the analog reception channels over the period of time in the absence of phase shift between the an

Abstract: A method (100) for characterising processing differences between analog channels, the method comprising injecting (102) three analog signals into a first analog channel and a second analog channel, digitising (104) these signals so as to obtain digital signals xk, xl and yl having N samples, estimating (106) parameters ?k,l and ?k,l from the digital signals, where ?k,l is a ratio between an amplitude of the first analog signal at the output of the first analog channel and an amplitude of the second analog signal at the output of the second analog channel, and where ?k,l is a difference between a phase shift induced by the first analog channel in the first analog signal and a phase shift induced by the second analog channel in the second analog signal, the estimation comprising the application of a least squares method in order to determine values of the parameters ?k,l and ?k,l minimising the following quantity: ? n = 1 N ( x k ( n ) - ? k , l ( cos ? ( ? k , l ) ? x l ( n

Abstract: The invention relates to a method for producing 5-hydroxymethylfurfural (HMF) in a continuous process, which leads to the obtainment of an HMF fraction, a carbohydrate/acid fraction, a fructose fraction, and a levulinic-acid and formic-acid fraction and advantageously makes it possible, because of the purity of the obtained fractions, to return the fructose fraction obtained by means of the method directly to the production process and to use the other fractions in further-processing processes without the need for complex, additional purification steps.

Abstract: The invention relates to a method for producing 5-hydroxymethylfurfural (HMF) in a continuous process, which leads to the obtainment of an HMF fraction, a carbohydrate/acid fraction, a fructose fraction, and a levulinic-acid and formic-acid fraction and advantageously makes it possible, because of the purity of the obtained fractions, to return the fructose fraction obtained by means of the method directly to the production process and to use the other fractions in further-processing processes without the need for complex, additional purification steps.

Abstract: A free-turbine turboshaft engine including a gas generator including at least one compressor supplied with air, a combustion chamber receiving the compressed air at the output of the compressor, and at least one generator turbine mechanically connected to the compressor by a drive shaft and driven by gases from combustion of fuel carried out in the combustion chamber, and including a free turbine supplied by the gases from the combustion after passing through the generator turbine and which drives a power shaft positioned non-coaxially relative to the drive shaft of the gas generator and supplying the power of the turboshaft engine via a reduction gear. The combustion chamber is a substantially cylindrical or frusto-conical chamber, coaxial with the axis of the generator turbine, and includes a single injector.

Abstract: A water-gate is intended to withstand pressure exerted by a liquid. The water-gate includes an essentially flat shell plate and a plurality of thin cores extending along the length of the shell plate, the thin cores being substantially parallel to one another. Each core is solidly connected to the shell plate and pierced with multiple disjoint holes. According to the disclosure, the water-gate comprises at least one stiffener formed by assembling multiple elements that are aligned along a longitudinal axis of the stiffener and that each extend between the cores without passing through the cores. Each element may be solidly connected to a face of at least one core around one of the holes.

Abstract: A water-gate is intended to withstand pressure exerted by a liquid. The water-gate includes an essentially flat shell plate and a plurality of thin cores extending along the length of the shell plate, the thin cores being substantially parallel to one another. Each core is solidly connected to the shell plate and pierced with multiple disjoint holes. According to the disclosure, the water-gate comprises at least one stiffener formed by assembling multiple elements that are aligned along a longitudinal axis of the stiffener and that each extend between the cores without passing through the cores. Each element may be solidly connected to a face of at least one core around one of the holes.

Abstract: In a digital system with a processor coupled to a paged memory system, the memory system may be dynamically configured using a memory compaction manager in order to allow portions of the memory to be placed in a low power mode. As applications are executed by the processor, program instructions are copied from a non-volatile memory coupled to the processor into pages of the paged memory system under control of an operating system. Pages in the paged memory system that are not being used by the processor are periodically identified. The paged memory system is compacted by copying pages that are being used by the processor from a second region of the paged memory into a first region of the paged memory. The second region may be placed in a low power mode when it contains no pages that are being used by the processor.

Abstract: An overspeed protection device includes at least one torque measurement unit supported by an output shaft coupled mechanically to a free turbine of a turbine engine and a signal processing unit able to transmit to a turbine engine regulating system a command to reduce a flow of fuel injected if it is detected that the torque has dropped below a first datum value. The signal processing unit is shaped to command a reduction of the flow if it is detected that the torque has dropped below a first datum value, the torque measurement used to trigger the reduction being taken during a rotation corresponding to a fraction of a revolution of the output shaft.

Abstract: The invention relates to an improved method of cold forming a double-sided shaped foam article wherein the improvement is using a double-sided foam blank cut from a foam plank having a vertical compressive balance equal to or greater than 0.4 to produce the double-sided shaped foam article. The double-sided foam blank has a first pressing surface and a second pressing surface wherein the difference in compressive strength between the first and second pressing surfaces is equal to or less than 200 percent, most preferably, the compressive strength of the first pressing surface is the same as the compressive strength of the second pressing surface.