This author has not been identified. Look up 'TaeHyun Hwang' in GoogleThis author has not been identified. Look up 'Wei Zhang 0032' in GoogleThis author has not been identified. Look up 'Maoqiang Xie' in GoogleThis author has not been identified. Look up 'Jinfeng Liu' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Rui Kuang' in Google