Shivakumar Raman, Ph.D. (IMAGE) University of Oklahoma Caption OU graduate students Zahra Pourfarash (left) and Binoy Debnath (right) with OU School of Industrial and Systems Engineering Director Shivakumar Raman (center). They assist Raman with research supported by a grant from the Knudsen Institute for aging aircraft sustainability. Credit University of Oklahoma Usage Restrictions None 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.