Abstract: A shear wave elastography method for imaging an observation field in an anisotropic medium, including an initial ultrasonic acquisition step during which initial physical parameters are acquired in at least one region of interest; a spatial characterization step during which a set of spatial characteristics of the anisotropic medium is determined on the basis of the initial physical parameter; an excitation substep during which an shear wave is generated inside the anisotropic medium on the basis of the set of spatial characteristics; and an observation substep during which the propagation of the shear wave is observed simultaneously at a multitude of points in the observation field.

Abstract: A shear wave elastography method for imaging an observation field in an anisotropic medium, including an initial ultrasonic acquisition step during which initial physical parameters are acquired in at least one region of interest; a spatial characterization step during which a set of spatial characteristics of the anisotropic medium is determined on the basis of the initial physical parameter; an excitation substep during which an shear wave is generated inside the anisotropic medium on the basis of the set of spatial characteristics; and an observation substep during which the propagation of the shear wave is observed simultaneously at a multitude of points in the observation field.

Abstract: An ultrasonic method for quantifying the nonlinear shear wave elasticity of a medium, the method comprising the following steps: A1.—collecting a temporal succession of shear wave elasticity data from the medium, A2.—applying, to the medium, a deformation that successively changes according to a predetermined sequence of deformations, during the collection of the shear waves, A3.—observing the actual evolution of deformation, and B.—quantifying the nonlinear elasticity of the medium depending on the temporal succession of data and the evolution of deformation.

Abstract: A shear wave elastography method for imaging an observation field in an anisotropic medium, including an initial ultrasonic acquisition step during which initial physical parameters are acquired in at least one region of interest; a spatial characterization step during which a set of spatial characteristics of the anisotropic medium is determined on the basis of the initial physical parameter; an excitation substep during which an shear wave is generated inside the anisotropic medium on the basis of the set of spatial characteristics; and an observation substep during which the propagation of the shear wave is observed simultaneously at a multitude of points in the observation field.

Abstract: A shear wave elastography method for imaging an observation field in an anisotropic medium, including an initial ultrasonic acquisition step during which initial physical parameters are acquired in at least one region of interest; a spatial characterization step during which a set of spatial characteristics of the anisotropic medium is determined on the basis of the initial physical parameter; an excitation substep during which an shear wave is generated inside the anisotropic medium on the basis of the set of spatial characteristics; and an observation substep during which the propagation of the shear wave is observed simultaneously at a multitude of points in the observation field.

Abstract: An implantable ankle-prosthesis component (1), comprising a main body (2) with a bone contact face (3) intended to come into contact with an area of a bone body of an ankle and extending along a median contact plane (Pc), and comprising a anchoring means (4) protruding from the bone contact face (3), the anchoring means (4) comprising two pairs (20A, 20B) of anchoring wings, each extending in a plane (P1, P2), respectively, orthogonal to said median contact plane (Pc) between a first end (23A, 23B) connected to said bone contact face (3) and an opposite second end (24A, 24B), the planes of extension (P1, P2) of the pairs (20A, 20B) of anchoring wings intersecting each other, said second ends (24A, 24B) of the pairs (20A, 20B) of anchoring wings being inscribed in a leading plane (Pa) inclined with respect to said median contact plane (Pc).

Abstract: The invention concerns an ankle prosthesis (100), comprising a talar component (200) which includes a talar upper face (201) defining a first articular surface (202) and which extends between a talar anterior edge (203) and an opposite talar posterior edge (204) according to a first average direction, said first articular surface (202) being curved according to said first average direction, said first articular surface (202) comprising a first curved portion (202A) and a second curved portion (202B), each extending according to said first average direction, said first curved portion (202A) having a first curvature and said second curved portion (202B) having a second curvature, said prosthesis (100) being characterized in that said first curved portion (202A) and said second curved portion (202B) define respectively an anterior portion and a posterior portion of said first articular surface (202), said first curvature being greater than said second curvature.

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: A communicating board includes: a display medium including a sheet of fabric, the sheet of fabric comprising, on at least one surface, loops intended to cooperate with a gripping strip provided with hooks; at least one first gripping strip provided with hooks enabling to hold in position the display medium, and at least one substantially rectilinear profile including a first planar connecting surface having the at least one first gripping strip provided with hooks positioned thereon. The first planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with the at least one first gripping strip provided with hooks, the first planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30°.

Abstract: Improved ankle prosthesis. The invention concerns an ankle prosthesis (100), comprising a talar component (200) which includes a talar upper face (201) defining a first articular surface (202) and which extends between a talar anterior edge (203) and an opposite talar posterior edge (204) according to a first average direction, said first articular surface (202) being curved according to said first average direction, said first articular surface (202) comprising a first curved portion (202A) and a second curved portion (202B), each extending according to said first average direction, said first curved portion (202A) having a first curvature and said second curved portion (202B) having a second curvature, said prosthesis (100) being characterized in that said first curved portion (202A) and said second curved portion (202B) define respectively an anterior portion and a posterior portion of said first articular surface (202), said first curvature being greater than said second curvature. Ankle prostheses.

Abstract: A shear wave elastography method for imaging an observation field in an anisotropic medium, including an initial ultrasonic acquisition step during which initial physical parameters are acquired in at least one region of interest; a spatial characterization step during which a set of spatial characteristics of the anisotropic medium is determined on the basis of the initial physical parameter; an excitation substep during which an shear wave is generated inside the anisotropic medium on the basis of the set of spatial characteristics; and an observation substep during which the propagation of the shear wave is observed simultaneously at a multitude of points in the observation field.

Abstract: Methods for inputting characters of a symbol-based written language for encoding in a computerised system including a touch-sensitive surface, some methods comprising no more than four input steps. Movements of an object over the surface of the touch-sensitive surface, maintaining continuous contact therewith, defines a unique input path for each character. From a start position, an initial component in the input path selects a part of an alphabetical phonetic transcription associated with the character to be encoded. Groups of letters are displayed when initial contact is made, and, selection of one group displays individual letters within that group for selection. Once a selection has been made using the object, further components related to the character are displayed on the touch-sensitive surface at each step of the input path in accordance with previous selections, and if there is no ambiguity, removal of the object from the touch-sensitive surface encodes the character.

Abstract: A method of calibrating a multiport amplifier comprising a plurality of input ports, a plurality of power amplifiers linked to input ports by a matrix distributing signals, a plurality of output ports linked to the power amplifiers by a matrix recombining signals and a plurality of elements for weighting the signals associated with the power amplifiers, comprises: determining a normalized mean cross-correlation between an output signal present at the output port, taken as reference, and the signals present at the other output ports; and iteratively adjusting weights of the weighting elements so as to minimize the normalized mean cross-correlation or to render it less than a predetermined threshold. A multiport amplifier comprising a calibration module configured or programmed to implement such a calibration method, and a satellite for telecommunications whose payload comprises such a multiport amplifier, are also provided.

Abstract: A protective ballistic radome for a satellite antenna which can turn about an axis of rotation, has: a circular support in the form of a ring, having an axis of revolution RR'to coincide with the axis of rotation, with the circular support having a lower base and an upper part in planes respectively parallel and perpendicular to the axis RR', an annular groove, having an axis of revolution that coincides with the axis RR', opening onto the upper part of the circular support, a set of n contiguous walls having upper ends and lower ends in planes that are respectively parallel and perpendicular to the axis RR?, the walls having their lower ends inserted into the annular groove of the circular support in order to form a ballistic wall in the form of a tube of circular section, having the same axis of revolution RR', about said satellite antenna.

Abstract: A display device can have at least one imaging unit and at least one combiner. The location of the imaging unit and/or of the combiner can be provided to be locationally variable. The display device can be used such that information can be represented on a plurality of planes.

Abstract: A printed panel for displaying an image includes at least one printed image formed by a plurality of opaque parallel strips that are evenly spaced from one other and separated by transparent strips; an optical system formed by the juxtaposition of two flat lenses, the flat lenses of the optical system being arranged in parallel to the plurality of opaque and transparent strips of the printed image; and at least one photovoltaic panel having a surface for collecting sunlight that is arranged opposite a rear surface of the optical system.

Abstract: This invention concerns a method for transliterating an at least partially phonetic symbol-based writing system including entry of symbols into a complex character-based writing system including characters, comprising: entering with a human-to-machine interface a string of symbols into a transliterating engine, the string of symbols comprising a series of symbols at least corresponding to pronunciation of a string of characters; parsing the string of symbols into a series of symbols, each series of symbols forming an utterance unit corresponding to a character of the string of characters; transliterating the series of symbols into the corresponding characters; displaying the characters; wherein the transliterating step comprises matching by database retrieval each series of symbols with one and only one character.

Abstract: A method of calibrating a multiport amplifier comprising a plurality of input ports, a plurality of power amplifiers linked to input ports by a matrix distributing signals, a plurality of output ports linked to the power amplifiers by a matrix recombining signals and a plurality of elements for weighting the signals associated with the power amplifiers, comprises: determining a normalized mean cross-correlation between an output signal present at the output port, taken as reference, and the signals present at the other output ports; and iteratively adjusting weights of the weighting elements so as to minimize the normalized mean cross-correlation or to render it less than a predetermined threshold. A multiport amplifier comprising a calibration module configured or programmed to implement such a calibration method, and a satellite for telecommunications whose payload comprises such a multiport amplifier, are also provided.

Abstract: A display device can have at least one imaging unit and at least one combiner. The location of the imaging unit and/or of the combiner can be provided to be locationally variable. The display device can be used such that information can be represented on a plurality of planes.