This author has not been identified. Look up 'Huamin Chen' in GoogleThis author has not been identified. Look up 'Yun Xu' in GoogleThis author has not been identified. Look up 'Lin Bai' in GoogleThis author has not been identified. Look up 'Jian Li' in GoogleThis author has not been identified. Look up 'Tong Li' in GoogleThis author has not been identified. Look up 'Chen Zhao' in GoogleThis author has not been identified. Look up 'Jiushuang Zhang' in GoogleThis author has not been identified. Look up 'Guofeng Song' in Google