9:30 AM - 9:40 AM
*Takumi Hamanoya1, Yuko Matsuo2, Takashi Obata3, Yasunori Miyamori4 (1. National Institute of Technology(Kosen), Tomakomai College, 2. National Institute of Technology(Kosen), Tomakomai College, 3. Hokkai-gakuen University, 4. Kitami Institute of Technology)