Junhong Chen (IMAGE) University of Wisconsin - Milwaukee Caption Junhong Chen, professor of engineering at UW-Milwaukee, holds a disk containing thousands of his novel water sensors. Credit Troye Fox Usage Restrictions with credit 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.