6:15 PM - 7:30 PM
*Satoshi OKAMURA1, Mitsuru INABA2, Takanori YOSHIDA1, Yoshiko ADACHI3, Ryuichi SHINJO4, Yasuo IKEDA5 (1.Sapporo, Hokkaido Educ. Univ., 2.Japan Petroleum Exploration Co., Ltd., 3.Faculty of Science. Niigata Univ., 4.Faculty of Science. Univ. Ryukyus, 5.Kushiro, Hokkaido Educ. Univ.)