Kun Sang Lee is currently a Professor in the Department of Earth Resources and Environmental Engineering at Hanyang University. He earned a BS in mineral and petroleum engineering and a MS in mineral and petroleum engineering, both from Seoul National University. He was previously an Assistant Professor and Professor at Kyonggi University and an Associate Adjunct Professor at Michigan State University. He is currently the Editor-in-Chief of Geosystem Engineering and on the editorial board of the International Journal of Oil, Gas, and Coal Technology. He has published in many journals including Elsevier's Journal of Petroleum Science and Engineering. Ji Ho Lee is currently a post-doc researcher at the Department of Earth Resources and Environmental Engineering at Hanyang University in South Korea. He earned a bachelor of science in geoenvironmental system engineering and a PhD in earth resources and environmental engineering, both from Hanyang University. Dr. Lee has published several journal articles and one book publication.