*Francis Jhun Tin-ao Macalam^1,2、Kunyang Wang¹、Shin-chi Onodera¹、Mitsuyo Saito¹、Yuko Nagano³、Masatoshi Yamazaki⁴ (1.Graduate School of Advanced Science and Engineering, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8521, Japan、2.Department of Environmental Science and Technology, College of Science and Mathematics, University of Science and Technology of Southern Philippines, Cagayan de Oro City, 9000, Philippines、3.Japan Forest Technology Association, Rokubancho, Chiyoda-ku, Tokyo 102-0085, Japan、4.PASCO Corporation, PASCO Meguro Sakura Bldg, 1-7-1 Shimomeguro, Meguro-ku, Tokyo 153-0064, Japan)