About YANG X
About ISHIMARU YUTAKA
About IIDA IKUHO
About URAKAMI HIROYUKI
About property of wood
About nondestructive evalution
About Nature and structure of wood(=timber)
About Manufacture and processing of woody materials in general
About 木材
About 非破壊評価
About 伝達関数
About モード解析
About たわみ
About 振動波形
About 欠点