Input devices such as satellites, field sensors, electronic pads, cellular phones, andor radio transmitters communicate information representing queries, reports, andor instructions to an intention determination system that is accessible by a user interface with a display. Three central conductors are placed on the top surface of the magnetic core so that they overlap with each other at regular intervals substantially at the center of the top surface of the magnetic core. The cooling duct is formed within the turbine blade for conducting a cooling air flow and extends along the flow attacking edge in at least some sections. The optical sensing array is utilized for receiving a reflected light from a surface indicating features of the surface for generating a digital frame corresponding to intensity variation caused by the reflected light. Thus, a value \u0394R\xd7A, which represents the variation in magnetoresistance\xd7element area, for the upstream part of the multilayer film is controlled so as to be smaller than the value \u0394R\xd7A for the downstream part of the multilayer film. The sourcedrain regions and the two N-type LDDs are surrounded by the two P-type LDDs, respectively.