This author has not been identified. Look up 'Waixi Liu' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Yu Wang' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Jie Zhang' in GoogleThis author has not been identified. Look up 'Hongjian Liao' in GoogleThis author has not been identified. Look up 'Zhong-Wei Liang' in GoogleThis author has not been identified. Look up 'Xiaochu Liu' in Google