*Miyuki Miyazawa¹, Anna Suzuki², Atsushi Okamoto¹, Hiroyuki Shimizu³, Ippei Obayashi⁴, Yasuaki Hiraoka^4,5, Takatoshi Ito² (1.Graduate School of Environmental Studies, Tohoku University, 2.Institute of Fluid Science, Tohoku University, 3.Kajima Corporation, 4.The Advanced Institute for Materials Research, Tohoku University, 5.Kyoto University)