About OKADA Y
About Ibaraki Univ., Hitachi, JPN
About NAGAI B
About Ibaraki Univ., Hitachi, JPN
About SHIMANE T
About Toshiba Ltd., Kawasaki, JPN
About Journal of Vibration and Acoustics
About magnetic bearing
About Bearings
About Other machine elements
About 数値制御
About 軸受
About フィードバック安定化