1. School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an, Shaanxi, China
2. Department of Mechanical Engineering, Graduate School of Science and Engineering, Chiba University, Chiba, Japan
3. Department of Mechanical Engineering, Vocational College, Universitas Gadjah Mada, Yogyakarta, Indonesia
4. Xi’an Yurcent Environmental Technology Co., Ltd., Xi’an, Shaanxi, China