1. Yahata Rolling Mechanical Engineering Department, Engineering Division, Mechanical Engineering Unit, Nippon Steel Texeng Co., Ltd, Fukuoka, Japan
2. Department of Mechanical Engineering, Kyushu Institute of Technology, Fukuoka, Japan
3. Shandong Jiaotong University, Changqing District, Jinan City, China
4. Architecture Engineering Department, Development Division, Kei Products Co., Ltd, Fukuoka, Japan