This author has not been identified. Look up 'Jie Hu' in GoogleThis author has not been identified. Look up 'Tianrui Li' in GoogleThis author has not been identified. Look up 'Chuan Luo' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Hamido Fujita' in GoogleThis author has not been identified. Look up 'Yan Yang' in Google