Professor Xiang Zhan (IMAGE) The University of Hong Kong Caption Professor Xiang Zhang, President and Vice-Chancellor of HKU, delivers the welcome remarks. Credit The University of Hong Kong Usage Restrictions n/a License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.