[Huang Jusheng;Liu Jun'an;Tan Lixin] Hunan Inst Engn, Dept Mech Eng, Xiangtan 411101, Peoples R China.^[Tu Li] Hunan City Univ, Dept Comp Sci, Yiyang 413000, Peoples R China.^[Qu Xilong] S China Univ Technol, Sch Comp Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.