This author has not been identified. Look up 'Qingquan Sun' in GoogleThis author has not been identified. Look up 'Ju Shen' in GoogleThis author has not been identified. Look up 'Haiyan Qiao' in GoogleThis author has not been identified. Look up 'Xin-Lin Huang' in GoogleThis author has not been identified. Look up 'Chen Chen' in GoogleThis author has not been identified. Look up 'Fei Hu' in Google