This author has not been identified. Look up 'Ke Liu' in GoogleThis author has not been identified. Look up 'Jing-Yi Wang' in GoogleThis author has not been identified. Look up 'Qiang Wei' in GoogleThis author has not been identified. Look up 'Zhenyong Zhang' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Jun Sun' in GoogleThis author has not been identified. Look up 'Rongkuan Ma' in GoogleThis author has not been identified. Look up 'Ruilong Deng' in Google