Abstract: The invention relates to a copolyamide comprising units resulting from the polycondensation reaction of the following precursors: terephthalic acid (a), an aliphatic diamine (b) comprising x carbon atoms, x being an integer between 6 and 22, and an aminocarboxylic acid and/or a lactam (c) comprising a main chain and at least one linear or branched alkyl branching, the total number of carbon atoms of the aminocarboxylic acid and/or of the lactam (c) being between 12 and 36. The invention also relates to the process for preparing said copolyamide and to a composition comprising such a copolyamide.

Abstract: Novel 2-pyrrolylthione derived metal chelate compounds are disclosed as imaging and therapeutic agents. Compositions and methods for their preparation and use as diagnostic imaging and therapeutic agents are also disclosed.

Abstract: Novel 2-pyrrolylthione derived metal chelate compounds are disclosed as imaging and therapeutic agents. Compositions and methods for their preparation and use as diagnostic imaging and therapeutic agents are also disclosed.

Abstract: Novel 2-pyrrolylthione derived metal chelate compounds are disclosed as imaging and therapeutic agents. Compositions and methods for their preparation and use as diagnostic imaging and therapeutic agents are also disclosed.

Abstract: An apparatus for conveying loose material includes a chute with static bottom shaped like a trough, adapted to accommodate the material to convey, and a series of conveyance members mounted to move back and forth on a movable frame. Each conveyance member includes at least two juxtaposed blades, extending up to a different depth inside the chute, and in that the depth up to which the superimposed blades extend inside the chute decreases from the front blade (facing the conveyance direction of the material) to the rear blade (opposite the conveyance direction of the material).

Abstract: A device for protecting a principal static relay including semi-conductors from overloads which includes an auxiliary static relay which is connected in series with a conventional parallel protection circuit and whose closure is controlled at the same time as the opening of the principal static relay.

Abstract: A static switch is disclosed, adapted to switch overintensities of more than a thousand amps. Instead of using one large, commercially available component, a series of small components are used in parallel, each being associated with a snubber circuit.

Abstract: Display device comprising an array of rotating display elements (4) which have at least two faces of different color and are arranged in rows and columns, means (8, 18) for actuating the said rotating elements in terms of rotation, intended to ensure the modification of the face of each rotating element appearing on the display, and means for controlling the actuating means (8, 18) so as to ensure the rotation of the said rotating elements in order to form an image to be displayed, characterized in that the rotating elements (4) of each row or column are arranged on a common shaft rotatably mounted in a frame of the device, each rotating element being connected to the shaft by a friction coupling, a device (8, 15) for driving in step-by-step rotation associated with each shaft and a retractable member (16) for blocking all the rotating elements (4) of each column or row in terms of rotation, one actuating device (18) being associated with each blocking member (16).

Abstract: A parachute canopy comprises air entries provided on the canopy itself. The canopy is constituted by an assembly of gores, each gore being composed of three gore portions. The air entries are provided on a predetermined number of gores, the medium gore portion overlapping the lower gore portion. The medium gore portion and the lower one are sewn together only at meridional lines such as to leave a free passage between their overlapping portions which constitutes an air entry.