Schedule 0 Comment (0) [C15-P-12] Changes in the sound absorption coefficient and drying characteristics of wood by surface perforation ○Chun-Won Kang1, Haradhan Kolya1, Eun-Suk Jang1, Chengyuan Li1, Kazuharu Hashitsume2, Masumi Hasegawa3 (1. Jeonbuk National Univ., 2. Shimane Univ., 3. Kyushu Univ.) Abstract password authentication.Password is required to view the abstract. Please enter a password to authenticate. Password Authentication