Abstract: An improved computer server that generates less heat, requires less energy to operate, and is capable of operating in much higher temperatures includes a power conversion assembly that receives standard 110 volt or other voltage AC power and converts it to unregulated 48 volt DC current externally. Then the 48 volt current is fed into the internal power train, and converts that current to lower voltages for use by various components within the server. Additionally, the size and shape of the server housing allows for more efficient heat transfer, wherein the housing, in a preferred embodiment, has a lateral cross-section with dimensions of between 3.5 inches to 8 inches of width and 3.5 inches to 7 inches of height. The server also may include heat and humidity sensors within the server housing, and these sensors are operationally connected to the fan used for cooling the server.

Abstract: An improved computer server that generates less heat, requires less energy to operate, and is capable of operating in much higher temperatures includes a power conversion assembly that receives standard 110 volt or other voltage AC power and converts it to unregulated 48 volt DC current externally. Then the 48 volt current is fed into the internal power train, and converts that current to lower voltages for use by various components within the server. Additionally, the size and shape of the server housing allows for more efficient heat transfer, wherein the housing, in a preferred embodiment, has a lateral cross-section with dimensions of between 3.5 inches to 8 inches of width and 3.5 inches to 7 inches of height. The server also may include heat and humidity sensors within the server housing, and these sensors are operationally connected to the fan used for cooling the server.

Abstract: In order to classify cylindrical nuclear-fuel pellets automatically, they are rotated about their axis. A flat beam is focused onto a nominal generatrix of the pellet. The returned light coming from an elongate zone, this being the zone illuminated on a defect-free pellet, is collected. The intensity is detected, point by point, along the zone and the defects are deduced from the variations in the intensity. To this end, the points of each zone are determined in which the intensity of the returned light lies between two adjustable normality thresholds, the transition points are stored in memory, and the limits of each defect and its type are determined by neighborhood analysis.

Abstract: The automatic sorting device allows nuclear-fuel pellets to be distributed into correct, acceptable or scrapped pellets.

Abstract: The invention relates to a device for selectively positioning a tool carried by a vehicle moving on the perforated plate of a bank of tubes, said device being composed of a vehicle comprising transfer members mounted to slide in a central body and comprising on either side thereof jacks extending at right angles to the planes in which said members move and of which the mobile rods of said jacks comprise at their free end positioning fingers, which vehicle is connected by swivel joint means to an articulated telescopic arm comprising means for fixation to the opening giving access to the enclosure, which arm maintains the vehicle, in the course of its displacements in the enclosure, permanently in contact with said perforated plate. The invention is more particularly applicable to the maintenance of apparatus comprising banks of tubes, in particular steam generators of nuclear power stations.