1. Hohai University, Nanjing, China & Nanjing Longyuan Micro-Electronic Company, Nanjing, China
2. Hohai University, Nanjing, China & Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, China
3. Hohai University, Nanjing, China
4. Nanjing Longyuan Micro-Electronic Company, Nanjing, China