Xie, Xi [P:(DE-HGF)0] ; Li, Xiaoqiang [P:(DE-Juel1)177066] ; Jia, Qing [P:(DE-HGF)0] ; Bai, Chunguang [P:(DE-HGF)0] ; Malzbender, Jürgen [P:(DE-Juel1)129755] ; Cui, Yuyou [P:(DE-HGF)0] ; Yang, Rui [P:(DE-HGF)0]