SEM Photo (IMAGE) National Research Council of Science & Technology Caption SEM photo of (left) existing powder activated carbon and (right) powder activated carbon developed by KIST researchers by grinding it using ball mil Credit Korea Institue of Science and Technology(KIST) Usage Restrictions The sources of photos and research results from KIST must be specified. 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.