Abstract: The present invention concerns a method for electrochemically depolluting an aqueous solution containing at least one heavy metal, said method comprising the following steps: a) a step of measuring the pH of the aqueous solution, optionally followed by a step of adapting said pH by adding a strong acid or a strong base, b) bringing said aqueous solution into contact with a reference electrode, a counter-electrode and a working electrode comprising a conductive substrate, c) applying a constant potential to the arrangement, as a result of which a film of at least one heavy metal oxide is formed on said working electrode, this step being capable of being repeated when the aqueous solution contains several heavy metals, and d) recovering a depolluted aqueous solution and said film.

Abstract: A method and system for characterizing media, in particular dielectric media, using a multifrequency resonator that is positioned remote from the region to be characterized and which is excited and interrogated remotely via inductive coupling to a probe. A reader measures, via a single channel, the complex impedance of this probe when it is coupled to the resonator and when this resonator interacts magnetically with the region to be characterized. The impedance is spectrally analyzed in order to extract therefrom individual complex impedances for each of the resonance frequencies of the resonator. These individual impedances are processed in order to calculate electrical properties of the medium, such as permittivity and/or conductivity, which provide information on the nature and/or change of the medium. Also, a multifrequency resonator provided for such a system or method.

Abstract: An array device composed of individual multifrequency passive resonators which are not electrically connected to one another. These resonators are formed by interrupted transmission lines that close back in on themselves and which are nested within one another, each formed of a group of two or more parallel tracks, and are paired with one another contactlessly around one or more dielectric layers of a substrate. Such an array is used in particular to modify an incident magnetic or electromagnetic field, and/or to carry out impedance matching by being placed between an incident field and a body or object to be treated or observed. It is also used to improve a method for contactlessly characterizing a medium to be investigated, via inductive coupling of one or more of the resonators of said array to a probe connected to a reader.

Abstract: The present invention concerns a device for producing a “digital video classifier” configured to determine the quality of cleanliness of one or more segments of the digestive tube in a video capsule endoscopy (VCE) of a subject, comprising: a VCE allowing the acquisition of videos of segments of the digestive tube, video storage means, coupled with the VCE, an “image database” with images extracted from VCE exams, a “video database” with videos extracted from VCE exams, calculating means connected to the video storage means, and to the databases, and configured for performing a statistical learning for the generation of a “digital image classifier” from the “image database” and which classifies the images in adequate cleanliness or non-adequate cleanliness; generating the “digital video classifier” capable of classifying a video of a subject as being of adequate cleanliness or of non-adequate cleanliness of one or more segments of the digestive tube.

Abstract: This computerized method for audiovisual delinearization allows one or more digital video files to be sequenced and the sequences generated by the sequencing to be indexed, by virtually cutting the one or more digital video files into digital virtual sequences, each bounded virtually by two sequence time markers. The method is intended to produce and automatically select virtual sequences of each digital video file, the file fragments corresponding to the virtual sequences then being able to be extracted from the digital video files in question to be viewed or recorded in a new digital video file.

Abstract: A device for characterizing a surface of a sample, including; —a chamber comprising a medium for the sample, the chamber being connected to a pump, referred to as the primary pump, suitable for maintaining a pressure below 10?2 mbar within the chamber; —a source for generating an incident beam of neutral atoms or molecules having an energy of between 50 eV and 5 keV, with a divergence less than or equal to 0.05°, the source being arranged to direct the incident beam within the chamber through an inlet to the surface to be characterized with an angle of incidence less than or equal to 10° relative to the plane of the surface.

Abstract: Process for the preparation of a TiO2 photocatalyst/biomass carrier, with TiO2/MxOy nanocrystals, of at least nanometric size and photocatalysis-active at least in visible light, consisting of the following steps: a) preparation and heating of an aqueous solution of hydrochloric acid with a given pH, between 0 and 6, and at a temperature between 20° C. and 60° C.

Abstract: A method for manufacturing a superconducting LC-type resonator of the type including at least one high-resistivity substrate on which are printed an inductive meander, a first so-called lower electrode and a second so-called upper electrode arranged opposite the first so as to form together a capacitor connected in parallel with the inductive meander, as well as inductive coupling means dedicated to the resonator, in which a sacrificial aluminium layer is deposited between the first and second electrodes. Also disclosed is the superconducting LC-type resonator thus obtained and the use of such a resonator for detecting the noise of a millimetre photon.

Abstract: A method for the preparation of an electrode comprising a substrate made of an aluminium based material, vertically aligned carbon nanotubes and an electrically conductive polymer matrix, the method comprising the following successive steps: (a) synthesising, on a substrate made of an aluminium based material, a carpet of vertically aligned carbon nanotubes according to the technique of CVD (Chemical Vapour Deposition) at a temperature less than or equal to 650° C.; (b) electrochemically depositing the polymer matrix on the carbon nanotubes from an electrolyte solution including at least one precursor monomer of the matrix, at least one ionic liquid and at least one protic or aprotic solvent. Further disclosed is the prepared electrode and a device for storing and returning electricity such as a supercapacitor comprising the electrode.

Abstract: The present invention relates to a method for producing a support at least micrometric in size, photocatalytically active and at least in the visible range, containing nanocrystals each composed of from 80 to 100 mol % of TiO2 and from 0 to 20 mol % of at least one other metal or semi-metallic oxide, comprising the following steps, from an acidic aqueous reaction medium, at a heating temperature of between 20 and 60° C.

Abstract: The invention relates to a method for producing an image numerical classifier, to automatically determine the visualization quality of endoscopy videocapsule images of segments of the digestive tract, comprising a step of acquiring a video in the digestive tract by a videocapsule; a step of extracting images from the video; a so-called “ground truth” step of clinically evaluating the visualization quality of the images based on medical criteria, a step of selecting an initial set of “adequate” visualization images and “inadequate” visualization images, a step of calculating at least one numerical parameter relating to at least one of the medical criteria, a statistical machine learning step to produce the numerical classifier.

Abstract: A polar code decoding method in which a first decoding attempt by successive cancellation is performed and in the case where the decoded frame is erroneous, an ordered list of bit positions to be tested in the frame is generated, the order relation being given by a metric of first error, the value of this metric depending on the reliability of the decision about the bit as well as on the reliability of the decisions about the bits preceding it in the frame. For each of the positions of the list, an inversion of the bit and a decoding of the subsequent bits are undertaken, doing so as long as the list has not been exhausted or the frame has not been decoded without error. In case of failure, a new decoding attempt based on a double-inversion of bits can be envisaged.

Abstract: The present invention concerns a method for preparing a composite material comprising electrically conductive or semiconductive nano-objects of elongate shape and an electrically conductive polymer matrix, said method comprising a step consisting in electrochemically deposing said matrix on said nano-objects using a pulsed galvanostatic technique. The present invention also concerns the composite material thus obtained and uses thereof.

Abstract: An in-between layer partial syndrome stopping (IBL-PS) criterion for a layered LDPC decoder. The IBL-PS syndrome is obtained by applying the parity checks (Hr,r+1) of a couple of a first layer (r) and a second layer (r+1) on the variables after the first layer has been processed and before the second layer is processed by the decoder, the decoding being stopped if said in-between layer syndrome (sr,r+1) is satisfied for at least a couple of consecutive layers.