RT Journal T1 A1 PB Journal of Shandong University(Engineering Science) FD 2011-10-16 YR 2011 JF Journal of Shandong University(Engineering Science) JO Journal of Shandong University(Engineering Science) VO 41 IS 5 SP 1 DO K1 LK {http://gxbwk.njournal.sdu.edu.cn/EN/article/article_863.shtml}