Abstract: A torque and power measuring device corresponding to the non-drive side cyclist leg, comprising a hollow shaft connecting the two bicycle crank arms with strain sensors arranged in the shaft surface. These sensors are connected to an electronic control unit housed inside the shaft, to which are also connected other different sensors to measure a plurality of interesting quantities (pedaling cadence, crank arm angular position . . . ). This electronic control unit picks the sensor signals up, stores them and performs pre-programmed software operations to later wirelessly output the result signals towards a receiving device for analysis and/or storage them, by means of an antenna located outside the shaft and anchored to the outer surface of the jointed crank arm with the shaft.

Abstract: This procedure proposes the appropriate equations that determine the rotor movement in order to obtain the aerodynamic actions for each blade in each iteration (the forces that are transmitted to the helicopter and the moments with respect to the articulations), and they are resolved by discretizations made in the rotor disc, such that that the blade elements of the partition are connected to the disc, which does not rotate, instead of to each blade. The blades pass through an azimuth range in each iteration, making a division of each blade longitudinally into ne elements, and the rotor disc into na sectors, corresponding to divisions of the range of azimuth angles. Therefore, partitions are made on ne·na blade elements, identifying each blade element by means of its distance to the rotor axis and its azimuth angle.

Abstract: Electronic ballot box of the type used in elections that not only enables the voting slips to be scanned when they are deposited in the box, despite the fact of their being in an envelope in order to assure voting secrecy, using emission of a light for this purpose, but also permits the totalling of the votes for each of the candidatures and the setting of the electoral process parameters (voters, geographical bounds, candidatures, etc.) and those of the machine itself. It is also provided with a PCMCIA card, where the electoral database is stored. The machine can work either in voting mode or in management mode, so that absolute control is available over the operation of the equipment.