The purpose of the present invention is to extract oil from the soybean material containing soybean germ as a main component, and to utilize it. A first coupling structure disposed on the first lateral end of the cowl cover. The radiation monitoring modules of the present invention allow long term monitoring of a tunnel’s radiation levels with maintenance simply requiring replacement of a non-operational tunnel monitoring module by a robot. A first magnet and a second magnet are disposed in the first housing, and magnetism changes when the first and the second magnet being moved. Methods for controlling foam by determining and adjusting dynamic surface tension are also described.