About CHOI P-K
About TAKAHASHI HISASHI
About KIYAMA SATOSHI
About 日本音響学会研究発表会講演論文集
About gelatin
About Propagation of sound waves
About Acoustical properties of condensed matter in general
About ゼラチン
About ゾル
About ゲル
About 波速度
About 周波数依存性