1. School of Engineering Science, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, P.R. China
2. PetroChina Hebei Branch Company, No. 9 Shiqing Road, Xinhua District, Shijizhuang, Hebei, P.R. China
3. DingLi Corporation Ltd, No. 8 Keji 5th Road, Tangjiawan Town, Gaoxin District, Zhuhai, Guangdong, P.R. China