9:20 AM - 9:40 AM
*Jongdoc Park1, Hiroyuki Nagai2, Toshihiro Tsutsui2, Eisaku Oikawa3, Masumi Fukuma4 (1. National Institute of Technology Oshima College, 2. National Institute of Technology Yuge College, 3. National Institute of Technology Kure College, 4. National Institute of Technology Matsue College)