Hiroshi Maeda

TL;DR: In this article, the authors proposed a failure point standardization method for the case of a tie post for the purpose of relieving a voltage drop between two transformer stations, where the fault point was calculated by using a ratio of the rising average ΔIa and ΔIb of the fault currents from both of the transformer stations 3A and 3B obtained by the fault current calculation at a transformer station 3.

TL;DR: In this article, the authors proposed a method to improve the heat transfer to restrain generation of temperature deference and reduce overall heat loss by a method wherein both contact surfaces of terminals of a magnetic working substance and a thermal switch are finished to mirror surface of less than 0.5S.

TL;DR: In this article, the compsn of a rare earth element-Al garnet single crystal body using as a magnetic refrigerating work substance was specified by specifying a compsn represented by a formula (Dy1-xGdx)3Al5O12 (x<=01, y<=02, y <=04) is obtd.

TL;DR: In this paper, the authors proposed a rail current detector consisting of a detection means 12 which detects the AC current running in a rail 11 and outputs the signal according to the current when an electric vehicle is connected to a trolley cable 24, a determination means 13 to output the determination signal when the rail current detected by the detection means is equal to or greater than a predetermined value, and a display means 15 to perform the display corresponding to presence/absence of the AC currents running in the rail 11, and further comprises a blocking means 16 to block the operation of a disconnect