Abstract: The invention provides methods and systems for generating an ultrasound image. In a method, the generation of an ultrasound image comprises: obtaining channel data, the channel data defining a set of imaged points; for each imaged point: isolating the channel data; performing a spectral estimation on the isolated channel data; and selectively attenuating the spectral estimation channel data, thereby generating filtered channel data; and summing the filtered channel data, thereby forming a filtered ultrasound image. In some examples, the method comprises aperture extrapolation. The aperture extrapolation improves the lateral resolution of the ultrasound image. In other examples, the method comprises transmit extrapolation. The transmit extrapolation improves the contrast of the image. In addition, the transmit extrapolation improves the frame rate and reduces the motion artifacts in the ultrasound image. In further examples, the aperture and transmit extrapolations may be combined.

Abstract: An acousto-optic imaging method in which light waves and unfocused acoustic waves having various directions of propagation m are emitted in a medium, by spatially modulating the amplitude of the ultrasonic transducers of an array of transducers according to several periodic spatial amplitude modulations j, and the resulting optical signal Smj(t) is captured. For each direction of propagation m, the signals Smj(t) are spatially demodulated in order to determine a signal Sm(t) used to reconstruct the image of the medium.

Abstract: Ultrasound image devices, systems, and methods are provided. An ultrasound imaging system, comprising an array of acoustic elements configured to transmit ultrasound energy into an anatomy and to receive ultrasound echoes associated with the anatomy; and a processor circuit in communication with the array of acoustic elements and configured to receive, from the array, ultrasound channel data corresponding to the received ultrasound echoes; normalize the ultrasound channel data by applying a first scaling function to the ultrasound channel data; generate beamformed data by applying a predictive network to the normalized ultrasound channel data; de-normalize the beamformed data by applying a second scaling function to the beamformed data; generate an image of the anatomy from the beamformed data; and output, to a display in communication with the processor circuit, the image of the anatomy.

Abstract: A radial tire (1) for a heavy-duty vehicle, with at least two working layers (321, 322, 323, 324) in which the reinforcing elements form an angle at least equal to 10° and at most equal to 45° with the circumferential direction. The metal reinforcers of all of the crown layers of the crown reinforcement are extensible and therefore have, in their rubberized state extracted from a polymer matrix, a structural elongation As at least equal to 0.5%, a total elongation at break At at least equal to 3% and a tensile Young's modulus E at most equal to 150 GPa. The narrower of the two working layers has an axial width at least equal to 60% of the width of the tread and the wider of the two working layers has an axial width at least equal to 70% of the width of the tread.

Abstract: A radial tire (1) for a heavy-duty vehicle, in which the reinforcing elements of each hooping layer (331, 332, 333), forming an angle at most equal to 5° with the circumferential direction, and the reinforcing elements of the transverse reinforcer layers (321, 322, 323), forming an angle of between 10° and 45° with the circumferential direction, are extensible and therefore such that, in their rubberized state extracted from a polymer matrix, their structural elongation As is at least equal to 0.5%, their total elongation at break At is at least equal to 3% and their tensile Young's modulus E is at most equal to 150 GPa.

Abstract: A sports helmet has: a shell; a face protector; and a face mask disposed on an inner side of the face protector, the face mask having a body overlapping a nose and a mouth and defining a volume between the face and the body, the body defining a top edge for engaging the face and a bottom edge opposed to the top edge and disposed proximate a chin, the bottom edge secured to a lower portion of the face protector at a location spaced apart from the face to define a gap therebetween, and lateral straps secured to one or both of the face protector and the shell for biasing the top edge against the face of the wearer, the body made of a material offering a flow resistance such that an exhalation flow from the wearer is deviated towards the gap and away from the face protector.

Abstract: The invention relates to a vehicle displaceable along aerial conductors of an electricity transmission line. The vehicle includes a body having arms. Each arm has a first end pivotably mounted to the body and a second distal end. A motorized wheel is mounted to each arm to engage one of the conductors to displace the vehicle. Support rotors have at least two blades. Each blade has an arm portion extending from the support rotor and a contact portion extending from the arm portion to engage one of the conductors to temporarily support the vehicle. An arm displacement mechanism engages the arms, and is operable to displace the arms in a direction transverse to a direction of travel of the vehicle to move the arms together and apart.

Abstract: A device (10) for sensing an acoustic signal is described. The device includes a flexible portion (14) including a laser active region (13) whose emitted wavelength varies according to a mechanical force acting on the flexible portion (14) and a flexible support member (24) operable to flex or bend according to the acoustic signal. The flexible portion (14) is coupled with the support member (24) so as to cause the flexible portion to flex or bend in accordance with the support member (24) thereby changing the emitted wavelength of the laser active region (13) of the flexible portion (14).

Abstract: The apparatus has a sensor disposed on the first end of an elongate connector by means of fixed interface link. A recorder unit is disposed on the second end of the connector opposite the first end. The connector is bendable within a predefined curvature range. When the apparatus is deployed into the sea, it is adapted to free-fall through the body of water and to land on the seafloor such that the sensor is spaced apart from the recorder unit. The apparatus is additionally adapted to substantially vibrationally de-couple the sensor from the recorder unit. The length of the connector is dynamically variable within a predefined range so as to minimize vibration coupling between the recorder unit to the sensor. Physical separation of the sensor and the recorder unit, together with the mechanical characteristics of the connector, ensure that the sensor is substantially vibrationally de-coupled from the recorder unit.

Abstract: A device (10) for sensing an acoustic signal is described. The device includes a flexible portion (14) including a laser active region (13) whose emitted wavelength varies according to a mechanical force acting on the flexible portion (14) and a flexible support member (24) operable to flex or bend according to the acoustic signal. The flexible portion (14) is coupled with the support member (24) so as to cause the flexible portion to flex or bend in accordance with the support member (24) thereby changing the emitted wavelength of the laser active region (13) of the flexible portion (14).

Abstract: A method and a device for recomposing an URL having caused the generation of an error message. Said URL being scanned in order to detect among its characters a presence of one or more characters belonging to a list of predetermined characters. A substitution by an assigned substitute character being applied if said scanning issued in a matching with a character of said list. If no matching occurred the domain name and the TLD are compared with a further domain name or URL belonging to a dictionary. If a matching with the dictionary occurred, a substitution with the domain name or URL of the dictionary is carried out. If no match occurred, a spelling correction algorithm is applied. If the spelling corrections still did not result in a corrected URL, the latter is segmentwise divided and recomposed.

Abstract: A method for compensating the effect of gravity on seismic sensors such as geophones and a gravity effect-free seismic sensor are disclosed. The gravity effect-free seismic sensor of the present invention includes primary sensor (100) operatively responsive to seismic movements and hence generating a seismic signal by having a coil placed in a magnetic field in a first axis of sensitivity (105); an auxiliary sensor (210) operatively responsive to a gravity field for generating a tilt signal, thus provide current to the coil of the primary sensor (100) to induce a force on the coil that at least partially compensates for a weight of the coil, thus ameliorating or eliminating a gravity effect on the primary sensor (100).

Abstract: The invention relates to surface acoustic antennas for submarines. It consists, in a known antenna, in replacing certain pressure sensors with velocity sensors in order to obtain cardioid directivity with a zero oriented toward the hull of the submarine. It allows the use of baffles serving to attenuate the noise generated inside the submarine.

Abstract: A method for deploying and retrieving seafloor equipment modules is disclosed. A conveyor has a fixed end and a free end. The conveyor is deployed into a body of water until the free end reaches, or is proximate to, the seafloor. The conveyor is dragged through the water. The equipment modules are slidably attached to the conveyor. The equipment modules slide along the conveyor to the seafloor, where the equipment modules engage the seafloor and are secured at a fixed position.

Abstract: The apparatus has a sensor disposed on the first end of an elongate connector by means of fixed interface link. A recorder unit is disposed on the second end of the connector opposite the first end. The connector is bendable within a predefined curvature range. When the apparatus is deployed into the sea, it is adapted to free-fall through the body of water and to land on the seafloor such that the sensor is spaced apart from the recorder unit. The apparatus is additionally adapted to substantially vibrationally de-couple the sensor from the recorder unit. The length of the connector is dynamically variable within a predefined range so as to minimise vibration coupling between the recorder unit to the sensor. Physical separation of the sensor and the recorder unit, together with the mechanical characteristics of the connector, ensure that the sensor is substantially vibrationally de-coupled from the recorder unit.

Abstract: A method for compensating the effect of gravity on seismic sensors such as geophones and a gravity effect-free seismic sensor are disclosed. The gravity effect-free seismic sensor of the present invention includes primary sensor (100) operatively responsive to seismic movements and hence generating a seismic signal by having a coil placed in a magnetic field in a first axis of sensitivity (105); an auxiliary sensor (210) operatively responsive to a gravity field for generating a tilt signal, thus providing a current to the coil of the primary sensor (100) to induce a force on the coil that at least partially compensates for a weight of the coil, thus ameliorating or eliminating a gravity effect on the primary sensor (100).

Abstract: The present invention provides a method for deploying and retrieving seafloor equipment including the steps of: providing a conveying means (200) with a fixed end and a free end (201); releasing said conveying means (200) into a body of water (210) from a vessel (220) until said free end (201) reaches, or is proximate to, a seafloor (230) of said body of water (210); dragging said conveying means (200) behind said vessel (220) at a controllable speed; slidably attaching said equipment (240) including a recovery module (241) and stopping means (242) to said conveying means (200), wherein said equipment, said recovery module and said stopping means are secured one to another by a connector (244); sliding said equipment (240) to the free end (201) of the conveying means (200), said equipment (240) being fixed in position on the seafloor (230) by said stopping means (242) once said stopping means reaches the seafloor; activating said recovery module (241) so as to allow said equipment (240) to ascend from

Abstract: The invention relates to surface acoustic antennas for submarines. It consists, in a known antenna, in replacing certain pressure sensors with velocity sensors in order to obtain cardioid directivity with a zero oriented toward the hull of the submarine. It allows the use of baffles serving to attenuate the noise generated inside the submarine.