Affiliation: | Department of Engineering Mechanics and Energy, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8573, Japan Tel./fax: +81 29 853 5511.; Department of Mechanical Science and Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan Tel.: +81 52 789 2671; fax: +81 52 789 4477.; INSA/GPM UMR 6634, Avenue de l’université, BP 08, 76801 St Etienne du Rouvray Cedex, France Tel.: +33 2 32 95 97 65; fax: +33 2 32 95 97 10. |