This author has not been identified. Look up 'Shunkai Sun' in GoogleThis author has not been identified. Look up 'Jianping Hu' in GoogleThis author has not been identified. Look up 'Jie Li' in GoogleThis author has not been identified. Look up 'Ruidong Liu' in GoogleThis author has not been identified. Look up 'Meng Shu' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Yang Yang' in Google