Abstract: A fiber application head for a fiber application machine for the production of parts made of composite materials, comprising a compacting roller, said compacting roller comprising several independent roller segments mounted side by side on an axial rod. Each roller segment comprises a tubular central portion through which said segment is mounted on the axial rod, a tubular peripheral portion having a cylindrical outer surface and one or more curved spring plate arranged between the outer surface (31a) of the central portion and the inner surface of the peripheral portion.

Abstract: A fiber application machine for the production of composite material parts, comprising a system for displacing a fiber application head, a fiber storage, and a fiber conveyor for conveying the fibers from the fiber storage to the application head, the fiber conveyor being placed in the internal passage of at least one flexible tubular sheath, the machine further comprising a cooling system adapted to inject cold gas in the internal passage of the sheath.

Abstract: A fiber application machine comprising a fiber application head, a displacing system to displace said fiber application head, a fiber storage, and a fiber conveyor to convey the fibers from the fiber storage to the application head. The machine further comprises a safety system comprising at least one perimeter barrier defining a safety zone wherein the displacing system carrying the application head is placed, the fiber storage being arranged outside of said safety zone.

Abstract: A stator for an axial-flux electric machine is provided with at least one flat winding formed thereon. The flat winding is circumferentially distributed over the flat stator. The flat winding comprises a plurality of petal-like sections which is substantially radial relative to an axis of the rotor.

Abstract: A fiber application machine for the production of parts made of composite materials comprising a compacting roller for applying on an application surface a band formed of at least a resin pre-impregnated flat fiber, and a heating system able to emit a heat radiation towards the band. The compacting roller comprises a rigid central tube provided with radial holes, and a cylinder made of an elastically deformable, flexible material, assembled on the central tube, and having a fluid communication assembly that brings the radial holes into fluid communication with the external surface of the cylinder. The machine includes a thermal regulation system that injects a thermal regulation fluid in the central tube internal passage.

Abstract: A method and a device for manufacturing hollow components out of a composite material, such as sections of an airplane fuselage, that include a skin and possibly strengthening elements. The method may include inserting a multi-articulated arm fitted with a fiber placement head inside a female mold of elongated shape. The female mold includes a longitudinal slit. A support for the multi-articulated arm is received through the slit. The method may also include applying fibers to the inner molding surface of the female mold using the placement head to form the composite material skin, by displacement of the application head using the multi-articulated arm and relative displacement in translation of the support for the multi-articulated arm along said longitudinal slit.

Abstract: A fiber application machine for the production of composite material parts, comprising a system for displacing a fiber application head, a fiber storage, and a fiber conveyor for conveying the fibers from the fiber storage to the application head, the fiber conveyor being placed in the internal passage of at least one flexible tubular sheath, the machine further comprising a cooling system adapted to inject cold gas in the internal passage of the sheath.

Abstract: Embodiments of the invention relate to a fiber application method and a fiber application machine for producing parts in composite material, such as for the application of a band of fibers on convex surfaces and/or with edges. The machine comprises a fiber application head and a moving system for moving the application head. The application head comprises a compacting system including a compacting roller intended to come in contact against the application surface to apply the band, and a compacting member placed downstream from the compacting roller and exhibiting a substantially planar contact surface, said compacting member being capable of being pressed by its contact surface, against an application surface, substantially on the entire width of a band, by at least one contact line.

Abstract: The present invention relates to a head for applying fibers in order to make components of composite materials, intended to be mounted at the end of a displacement system for applying to a surface a wide strip formed of a number of fibers. The head comprises an application roller for applying fibers in the form of a strip, means for guiding fibers on said roller, and cutting means including blades activated by activation systems between a rest position and an active cutting position so as to cut the fibers upstream of the application roller. Said blades and associated activation systems are all placed on the side of the roller relative to said fibers.

Abstract: A wind turbine system includes a two-dimensional array of a plurality of modular wind turbine units arranged in a plurality of horizontal rows and vertical columns. The two-dimensional array of modular wind turbine units are carried by a frame structure including a plurality of parallel beams extending along a first orthogonal axis and spaced from each other along a second orthogonal axis, with the plurality of modular wind turbine units mounted between each pair of the parallel beams extending along the first orthogonal axis. Also described is a modular wind turbine unit particularly useful in such a system.

Abstract: A turbine blade particularly useful in a vertical-axis wind turbine, characterized in that the blade includes a central region of a symmetrical airfoil configuration, and opposite end regions of a non-symmetrical airfoil configuration effective to increase the drag forces produced by the wind at the end regions when the turbine blade is used in a vertical-axis wind turbine provide a self-starting capability, and a speed-limiting capability, to the wind turbine. In one described embodiment, the non-symmetry in the sharp trailing edge of the blade is produced by a deep recess extending inwardly past the chord line of the blade to enhance the self-starting and speed-limiting capabilities; whereas in another described embodiment, the non-symmetry is produced by a shallow recess and outwardly-flared ends enhancing the efficiency of the wind turbine during normal wind conditions.

Abstract: A fiber application machine, for making components out of composite materials, that includes a system for displacing a fiber application head, fiber storage means, and fiber conveying means for conveying fibers from said storage means to the application head. The conveying means include flexible tubes connecting the storage means to the application head, each flexible tube being fitted with at least one longitudinal flexible blade of rectangular transverse cross-section, said flexible blade being placed substantially parallel to the plane of transport of the fiber received in the inner passage of the flexible tube.

Abstract: A technique for updating a content addressable memory is disclosed. In one exemplary embodiment, wherein the content addressable memory has a plurality of entries, and wherein each of the plurality of entries has a prefix field, a prefix length field, and an associated index identifier, the technique is realized by determining a first index identifier associated with a first of the plurality of entries, wherein the first entry has a first prefix with a first prefix length that is greater than a third prefix length of a third prefix to be added to the content addressable memory. A second index identifier associated with a second of the plurality of entries is also determined, wherein the second entry has a second prefix with a second prefix length that is less than the third prefix length of the third prefix to be added to the content addressable memory. Based upon the first index identifier and the second index identifier, a third index identifier is determined.

Abstract: A technique for updating a content addressable memory is disclosed. In one exemplary embodiment, wherein the content addressable memory has a plurality of entries, and wherein each of the plurality of entries has a prefix field, a prefix length field, and an associated index identifier, the technique is realized by determining a first set of index identifiers, wherein each index identifier in the first set of index identifiers is associated with a respective entry in a first set of the plurality of entries, and wherein each entry in the first set of entries has a respective prefix with a respective prefix length that is greater than a third prefix length of a third prefix to be added to the content addressable memory. A second set of index identifiers is analogously determined. Based upon the first set of index identifiers and the second set of index identifiers, a third index identifier is determined.

Abstract: A technique for manufacturing floating bodies, such as a boat's hull or part of such a hull, made of synthetic resins reinforced by continuous fibers, said technique including at least one filament winding step.

Abstract: A method and apparatus are disclosed for the manufacture of a sheathed superconducting ceramic strip. The apparatus includes a chill wheel and metal casting apparatus wherein means are provided within the metal casting apparatus to cause oxygen to react with molten metal, comprising the base alloy from which a superconducting ceramic is formed, in a controlled manner. Strips of superconducting ceramic partially sheathed in the molten metal emerge from the metal casting apparatus and are engaged by the chill wheel, which solidifies the molten metal to form a continuous strip.

Abstract: The present invention provides an internally liquid cooled rotating target of high average power capabilities that is illuminated by an energy beam wherein multiple independent centrifugal forces are established on an associated heat transfer surface to enhance heat transfer.