Hanseup Kim, University of Utah (IMAGE) University of Utah Caption University of Utah electrical and computer engineering associate professor Hanseup Kim holds one of his low-power sensors in a testing gas chamber. The sensor will be used to sniff out when part of a cornfield is getting attacked by insects or invaded by weeds. Credit Dan Hixson/University of Utah College of Engineering Usage Restrictions None 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.