This author has not been identified. Look up 'Lu Liu' in GoogleThis author has not been identified. Look up 'Shaohua Yang' in GoogleThis author has not been identified. Look up 'Ming Yan' in GoogleThis author has not been identified. Look up 'Binkang Li' in GoogleThis author has not been identified. Look up 'Yang Guo' in GoogleThis author has not been identified. Look up 'Mingan Guo' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Gang Li' in GoogleThis author has not been identified. Look up 'Errui Zhou' in Google