Abstract: A computer-readable, non-transitory medium storing a program that causes a computer to execute a process is provided. The process includes acquiring a backward Rayleigh scattered light from an optical fiber composite overhead ground wire of an electrical power transmission facility; generating vibration information of a frequency band including a natural frequency of the optical fiber composite overhead ground wire, on a basis of the backward Rayleigh scattered light; and detecting abnormality of the electrical power transmission facility, on a basis of the vibration information.

Abstract: A pressing machine is characterized by including a plurality of crankshafts supported by a frame such that their axes of rotation extend in parallel, a yoke which connects the crankshafts so as to transmit the rotating motion of at least one crankshaft to another crankshaft, and a plurality of connecting rods connected at one end portions thereof to eccentric portions of the crankshafts and connected at the opposite ends thereof to a moving body which is mounted on the frame so as to reciprocate.