We developed a diamond surface that does not mist near the room temperature under a saturated humidity atmosphere, by sheet electron beam irradiation (SEBI) treatment. SEBI treatment decreased the time to clear vision of the diamond surface. Following SEBI treatment for 1.91 s (= 0.72 MGy) to a diamond surface, the time to clear vision was less than 2 s. The effective duration time was a few hours. Based on the results of the size distribution of the drops on the misting-free diamond surface following blowing for 3 s, we proposed an explanation for the short time to clear vision of the diamond surface treated by SEBI.

Sterilization process by sheet electron beam irradiation is investigated on a medical glass. Number of colony of E. coli on the surface of the medical glass was reduced by SERI. SEBI is effective for the sterilization of medical glass.

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Effect of a transmittance on wavelength of Ar+ laser by sheet electron beam irradiation ( SEBI ) was investigated on a Si02 glass . SEBI increases the transmittance of Si02 glass.

From an enginering point of view, it is important to investigate the superconducting critical current density (Jc). We studied the effect of Pt Addition on Jc for Bi-system in weak magnetic field. The small amount of Pt addition increases the Jc value from 0 to 20 G. Fine particles exist of the Pt compound. If they act as additional pinning sites, they enhance the Jc value.

We have examined the change of a weight of the revolving object in air. We confirmed that a weight of the object was decreased by the rotation in air and that the effect of right rotation was larger than that of left rotation.

Ti-Ni alloy of an approximately equiatomic concentration has been attraction by its unique nature of shape memory effect (SME). SME is associated with reversible thermoelastic martensitic transformation. Therefore, shape memory alloy (SMA) has the energy convertible function from thermal into mechanical energy.