Ultrasonics Improves Soy Processing (IMAGE) Iowa State University Caption Samir Khanal, foreground, and Bishnu Karki work with an ultrasonic machine in an Iowa State University laboratory. They're applying ultrasonic technology to the soy processing industry. Credit Photo by Bob Elbert, Iowa State University 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.