About IMAIZUMI HIROYUKI
About 産業技術総合研
About TAKAHASHI YASUMORI
About 産業技術総合研
About ISEI TAKEHIRO
About Vietnam Coal Mine Firedamp Gas Management Center, Quang Ninh, VNM
About 日本音響学会誌
About Helmholtz equation
About Propagation of sound waves
About Noise and vibration in general
About 媒質
About 波動伝搬
About 風速
About 勾配
About 大気中
About 音響伝搬