Affiliation: | Manabu Takao1,Akiyasu Takami2,Shinya Okuhara3 and Toshiaki Setoguchi4 1.Matsue College of Technology,14-4 Nishiikuma,Matsue,Shimane 690-8518,Japan 2.Matsue College of Technology,Japan 3.Matsue College of Technology,Japan 4.Saga University,1 Honjo,Saga,Saga 840-8502,Japan |