Abstract: Disclosed is a device for liquefying a fluid, comprising a fluid circuit to be cooled, the device comprising a heat exchanger assembly in heat exchange with the fluid circuit to be cooled, at least one first cooling system in heat exchange with at least a portion of the heat exchanger assembly, the first cooling system being a refrigerator having a cycle for refrigerating a cycle gas mainly comprising helium, said refrigerator comprising in series in a cycle circuit: a mechanism for compressing the cycle gas, at least one member for cooling the cycle gas, a mechanism for expanding the cycle gas, and at least one member for reheating the expanded cycle gas, wherein the compression mechanism includes at least four compression stages in series composed of a centrifugal compressor assembly, the compression stages being mounted on shafts that are rotationally driven by a motor assembly, the expansion mechanism comprising at least three expansion stages in series composed of a set of centripetal turbines, the at le

Abstract: Disclosed is a device for liquefying a fluid, comprising a fluid circuit to be cooled, the device comprising a heat exchanger assembly in heat exchange with the fluid circuit to be cooled, at least one first cooling system in heat exchange with at least a portion of the heat exchanger assembly, the first cooling system being a refrigerator having a cycle for refrigerating a cycle gas mainly comprising helium, said refrigerator comprising in series in a cycle circuit: a mechanism for compressing the cycle gas, at least one member for cooling the cycle gas, a mechanism for expanding the cycle gas, and at least one member for reheating the expanded cycle gas, wherein the compression mechanism includes at least four compression stages in series composed of a centrifugal compressor assembly, the compression stages being mounted on shafts that are rotationally driven by a motor assembly, the expansion mechanism comprising at least three expansion stages in series composed of a set of centripetal turbines, the at le

Abstract: A system for sorting metallic objects by magnetic separation has an electromagnetic core. The electronic core includes at least a first portion, a second portion, and a bottom. A sorting flap is arranged facing the electromagnetic core to fashion a circulation space for a conveyor of objects to be sorted from the first portion toward the second portion. The sorting flap includes a magnetic element arranged to form an air gap (E1) between the first portion and the sorting flap. The air gap forms a magnetic barrier opposing the passage of non-magnetic metallic objects, such that the objects are ejected from the conveyor. The second portion is arranged to ensure a return of the magnetic flux lines toward the first portion.

Abstract: A semiconductor wafer (1a, 1b) including a plurality of chips (2) and a separation zone (3) spacing the semiconductor chips (2) from each other in this wafer (1a, 1b), such a separation zone (3) extending from a front face (4a) to an opposite backside face (4b) of this wafer (1a, 1b), this separation zone (3) includes a scribe line (6) configured to be diced using plasma etching and an inlet area (13) of this scribe line (6), the inlet (13) being delimitated by free ends of plasma etch-resistant material layers (9) extending each from a peripheral wall (20) of a functional part (18) of a chip (2) into the scribe line (6) by overlapping a top of a seal ring (7) of this chip (2).

Abstract: A method of conditional neural ground planes for static-dynamic disentanglement is described. The method includes extracting, using a convolutional neural network (CNN), CNN image features from an image to form a feature tensor. The method also includes resampling unprojected 2D features of the feature tensor to form feature pillars. The method further includes aggregating the feature pillars to form an entangled neural ground plane. The method also includes decomposing the entangled neural ground plane into a static neural ground plane and a dynamic neural ground plane.

Abstract: Geometries of the structures and objects deviate from their idealized models, while not always visible to the naked eye. Embodiments of the present invention reveal and visualize such subtle geometric deviations, which can contain useful, surprising information. In an embodiment of the present invention, a method can include fitting a model of a geometry to an input image, matting a region of the input image according to the model based on a sampling function, generating a deviation function based on the matted region, extrapolating the deviation function to an image wide warping field, and generating an output image by warping the input image according to the warping. In an embodiment of the present invention, Deviation Magnification inputs takes a still image or frame, fits parametric models to objects of interest, and generates an output image exaggerating departures from ideal geometries.

Abstract: A method and corresponding device for identifying operational mode shapes of an object in a video stream includes extracting pixel-wise Eulerian motion signals of an object from an undercomplete representation of frames within a video stream. Pixel-wise Eulerian motion signals are downselected to produce a representative set of Eulerian motion signals of the object. Operational mode shapes of the object are identified based on the representative set. Resonant frequencies can also be identified. Embodiments enable vibrational characteristics of objects to be determined using video in near real time.

Abstract: A method and corresponding device for identifying operational mode shapes of an object in a video stream includes extracting pixel-wise Eulerian motion signals of an object from an undercomplete representation of frames within a video stream. Pixel-wise Eulerian motion signals are downselected to produce a representative set of Eulerian motion signals of the object. Operational mode shapes of the object are identified based on the representative set. Resonant frequencies can also be identified. Embodiments enable vibrational characteristics of objects to be determined using video in near real time.

Abstract: This processing method provides the ability to process a volume mode with an object intended to be added to or subtracted from said model. The volume model includes points arranged according to a spatial grid in a first reference system, each point being assigned an intensity value. The object has points positioned in a second reference system that is distinct from the first reference system. The method includes the calculation, for each point of the object, of an image point in the first reference system using a transfer function. The method further includes the modification of the intensity of points of the volume model by applying a correction function associated with each image point, the value of the correction function at a point of the volume model being dependent on the position of said point relative to said image point with which said correction function is associated.

Abstract: The invention relates to a method for estimating the electrical activity of a tissue using a plurality of sensors, in particular the brain activity related to a motor task performed, imagined, or visualized by a subject, using a plurality of magnetoencephalographic or electroencephalographic sensors, when this subject is submitted to a stimulus. The estimation method is based on an MNE criterion in which the coefficients of the covariance matrix of the physiological signals acquired by the different sensors are weighted using the correlation coefficients of these signals with a signal representative of the stimulus.

Abstract: The invention relates to a method for estimating the brain activity, from physiological signals, in particular magnetoencephalographic or electroencephalographic surfaces, which has, in certain predetermined areas of the cortex, considered as areas of interest, an improved accuracy with respect to other areas of the gridding. It enables a more accurate estimation to be obtained in the areas of the brain intended to be subjected to a particular treatment, for example to accommodate cortical electrodes.

Abstract: This processing method provides the ability to process a volume mode with an object intended to be added to or subtracted from said model. The volume model includes points arranged according to a spatial grid in a first reference system, each point being assigned an intensity value. The object has points positioned in a second reference system that is distinct from the first reference system. The method includes the calculation, for each point of the object, of an image point in the first reference system using a transfer function. The method further includes the modification of the intensity of points of the volume model by applying a correction function associated with each image point, the value of the correction function at a point of the volume model being dependent on the position of said point relative to said image point with which said correction function is associated.

Abstract: A hand-held microwave system for intra-oral dentistry utilizes microwave energy to cure polymer materials intra-orally so as to produce dental composites having improved physical characteristics, and also utilizes microwave energy to detect the presence of and to preferentially heat caries or cavities, thereby disinfecting and therapeutically treating the caries in a potentially non-invasive manner. The intra-oral polymerization process can be accomplished with less overall energy and with composite-matrices that maximally absorb the microwave energy so as to reduce heating of adjacent tissue. The antenna of a hand-held version of the intra-oral microwave system is also advantageously designed to detect the presence of and to preferentially heat caries or cavities, thereby disinfecting and therapeutically treating the caries in a potentially non-invasive manner. A method and product by process for the system are also disclosed.

Abstract: A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental laboratory or dental office, and to create dental composites for fillings and veneers that are used in an intra-oral setting directly in the patient's mouth. Unlike the microwave energy delivered by commercial microwave ovens, the system utilizes metered and controlled microwave energy that is preferably continuous and voltage controlled, and regulates the application of this microwave energy by use of various feedback and control mechanisms. The metered and controlled microwave energy enables a higher degree of conversion of monomers into polymer chains in the polymerization process, thereby enhancing the physical and biocompatibility characteristics of both dental prosthetics and dental composites made from polymers.

Abstract: A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental laboratory or dental office, and to create dental composites for fillings and veneers that are used in an intra-oral setting directly in the patient's mouth. Unlike the microwave energy delivered by commercial microwave ovens, the system utilizes metered and controlled microwave energy that is preferably continuous and voltage controlled, and regulates the application of this microwave energy by use of various feedback and control mechanisms. The metered and controlled microwave energy enables a higher degree of conversion of monomers into polymer chains in the polymerization process, thereby enhancing the physical and biocompatibility characteristics of both dental prosthetics and dental composites made from polymers.

Abstract: The invention provides a high octane number gasoline pool comprises at least 2% of di-branched paraffins containing 7 carbon atoms, and a process for producing this gasoline pool by hydro-isomerising a feed constituted by a C5 to C8 cut which comprises at least one hydro-isomerisation section and at least one separation section, in which the hydro-isomerisation section comprises at least one reactor.

Abstract: A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental laboratory or dental office, and to create dental composites for fillings and veneers that are used in an intra-oral setting directly in the patient's mouth. Unlike the microwave energy delivered by commercial microwave ovens which is controlled by pulsing a maximum voltage pulse on and off at a given duty cycle, the system utilizes metered and controlled microwave energy that is preferably continuous and voltage controlled, and regulates the application of this microwave energy by use of various feedback and control mechanisms.

Abstract: In order to improve the transport of oilfield effluents comprising water, a gas and possibly a liquid hydrocarbon phase under thermodynamic conditions which can lead to the formation of hydrates, a formulation containing at least two additives, one of which behaves as a hydrate crystal nucleation agent, is added to the effluent to be transported.

Abstract: The invention provides a high octane number gasoline pool comprises at least 2% of di-branched paraffins containing 7 carbon atoms, and a process for producing this gasoline pool by hydro-isomerizing a feed constituted by a C5 to C8 cut which comprises at least one hydro-isomerization section and at least one separation section, in which the hydro-isomerization section and at least one separation section, in which the hydro-isomerization section comprises at least one reactor.

Abstract: Hydrosoluble copolymers made of hydrophilic monomers, e.g., acrylamide, and of silane or siloxane derivative-based hydrophobic monomers, e.g., a silane or or siloxane acrylate, is obtained by micellar or heterogeneous radical copolymerization, and such copolymers can be used as rheology control agents in, e.g., a well bore.