Drying by the Infrarad-ray and the Conreenction dryness (1st Report)

The near Infra-redray was projected on a thin slice of potato, and than the dryness of the test piece was observed. Further, I studied the dry velosity and the evaporated water and the amount of contained water etc……. Drying by the Infra-redray is much bettter than other two ways, That is, the spontaneous dryness and the drying by the electric heater. An attempt was executed about the observation on the charge of temperature at the inner part of the test piece.