Abstract: A steam air wiper system that is used in particular for a front windshield of a four-wheel vehicle and demonstrates excellent practicality in terms of both function and cost. In the present disclosure, high-temperature and high-pressure water vapor V is jetted from jetting devices toward a front windshield. This steam air wiper system is provided with: jetting devices that jet high-temperature and high-pressure water vapor in a conical and spiral shape toward an object from which rain and snow are to be removed; and an air supply means provided with an induction heating type heating device that has a multi-tube structure, and supplies the water vapor to the jetting devices.

Abstract: The present invention Is directed to a method of manufacturing dough for yeast-leavened foods, which includes kneading a portion, including farina, of starting materials under reduced pressure or atmospheric pressure, extruding the kneaded mixture under pressure, adding the remaining starting materials thereto for further kneading under atmospheric pressure so as to obtain kneaded dough, and then fermenting the resultant kneaded dough; a method of manufacturing dough for yeast-leavened foods, which includes kneading the entirety of the starting materials of the yeast-leavened foods under reduced pressure or atmospheric pressure, extruding the kneaded mixture under pressure, subsequently kneading the extruded mass so as to obtain kneaded dough, and then fermenting the resultant kneaded dough; and a method of manufacturing frozen dough for yeast-leavened foods, which include freezing of any of the thus obtained kneaded dough.