About HUDDE H
About Ruhr-Univ. Bochum, Federal Republic of Germany
About LETENS U
About Ruhr-Univ. Bochum, Federal Republic of Germany
About Journal of the Acoustical Society of America
About acoustic waveguide
About scattering matrix
About Propagation of sound waves
About 損失
About 円形
About ダクト
About 剛体壁
About 不連続
About 散乱行列