Chang-Tien with students. (IMAGE) Virginia Tech Caption Chang-Tien Lu with his Ph.D. students Shailik Sarkar, Lulwah AlKulaib, and Abdulaziz Alhamadani. Credit Photo by Joung Min Choi for Virginia Tech. Usage Restrictions Credit Virginia Tech 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.