Zhang and Co. (IMAGE) Penn State Caption Xin Chen, a doctorate candidate in the Department of Materials Sciences and Engineering at Penn State, and Qiming Zhang, distinguished professor of electrical engineering, test a film capacitor in this photo taken in January. Credit Penn State College of Engineering Usage Restrictions non commercial use only License Licensed 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.