1. State Key Laboratory of Precision Measuring Technology and Instruments Tianjin University Tianjin 300072 P. R. China
2. Department of Mechanical Engineering Iowa State University Ames IA 50011 USA
3. College of Chemistry and Environmental Engineering Shenzhen University Shenzhen Guangdong 518055 P. R. China
4. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Department of Engineering Mechanics Tsinghua University Beijing 100084 P. R. China
5. School of Power and Mechanical Engineering Wuhan University Wuhan 430072 P. R. China