Affiliation: | a Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan b Technical Research Institute, Maeda Corporation, Tokyo 179-8914, Japan c Faculty of Engineering, Tokyo Polytechnic University, Atsugi 243-0297, Japan d Faculty of Engineering, Ashikaga Institute of Technology, Ashikaga 326-8558, Japan e Earth Clean Tohoku Co., Ltd., Sendai 984-0038, Japan |