We have investigated the effective reuse of scallop shells such as filling materials to the concrete, materials for cat litter and catalysis for bio-diesel fuel (BDF) synthesis and so on.

In this study, we tried to grow hydroponic crops such as mung bean sprouts and radish sprouts, and soil crop such as garden radish with many cultivation solutions dissolved of some concentrations of calcined scallop shells, then we studied the effects of cultivation solutions on the yields and the calcium contents of crops.

We tested the inhibitory effects of a lavender oil on the growth of six strains of Cladosporium spp. and Aureobasidium spp. using direct contact experiment based on an agar medium dilution method. The minimal inhibitory concentration (MIC) of the oil in two strains (C. cladosporioides NBRC 6348 and A. pullulans NBRC 6353) was 0.5% (v/v) at 25°C. MIC of the oil combined with 5% (v/v) ethanol was 0.1% (v/v) to five strains Cladosporium spp. and Aureobasidium spp. including NBRC 6348 and NBRC 6353. On the other hand, MIC of ethanol to the six strains was over 5% (v/v) at 25°C.

We tested the inhibitory effects of a lavender-floral water on the growth of six strains of Cladosporium spp. and Aureobasidium spp. using direct contact and vapor contact experiments based on an agar medium dilution method. Fifty percents (v/v) of the lavender-floral water of the two experiments were not able to inhibit the growth of all strains at 25°C. On the other hand,Fifty per cents (v/v) of the water combined with 5% (v/v) ethanol using direct contact experiment prevented the growth of tree strains (C. cladosporioides NBRC 6348, A. pullulans NBRC 6353 and Cladosporium sp. ANCT-11002) for 10 days at 25°C.

The theme of the 2M machine production training has been improved to a theme that allows cooperation between different occupations. The theme was "Oscillating Engine", and it was developed to be a teaching material by modifying a commercial kit.