Affiliation: | 1.Division of Human Mechanical Systems and Design, Graduate School of Engineering,Hokkaido University,Sapporo,Japan;2.Department of Mathematics, Faculty of Science,Hokkaido University,Sapporo,Japan;3.Department of Applied Mathematics,Shanghai University of Finance and Economics,Shanghai,People’s Republic of China;4.Center for Frontier Medical Engineering,Chiba University,Chiba,Japan;5.National Institute of Radiological Sciences,Chiba,Japan |