Affiliation: | a Faculty of Engineering, Department of Mechanical Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, Japan b Faculty of Engineering and Design, Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, Japan c Department of Precision Science and Technology, Osaka University, 2-1 Yamadaoka, Suita, Osaka, Japan |