Abstract: The system is foreseen to cathodically protect the submerged metal structure of ships by using the printed current technique, that is to say, applying a negative potential to the steel structure until placing it at a potential of -800 mv. A photovoltaic cell (1) connected to the battery (3) of the ship (Z) with the insertion of a charge regulator (5) is used as an energy source, the system including an automatic current regulator (6) applicable to the respective anode (7.) The negative output (4') of said regulator is connected to the metal parts such as the propeller (8), and rudder (9), while the positive output (4") or cable is connected to the anode itself (7), the latter consisting of an airproof box in which the cable itself (4") connects to the titanium band that comprises the anode itself, by means of a Faston type terminal, complemented with double insulation, a thermoretractile sleeve and some end covers that ensure the total sealing of the connection.

Abstract: It has been found that fullerenes exhibit photoelectronic behavior such as photoconductivity or photovoltaic properties. Such behavior allows the fabrication of a variety of devices, such as solar cells and the use of various light-induced processes, such as the generation of a current by illumination of appropriate fullerene interfaces.