1. Project Engineer, Cesare, Inc.; Research Member, Center for Geotechnical Engineering Science, Univ. of Colorado Denver; Founding Member, 1805 Institute, LLC, Frederick, CO.
2. Professor Emeritus of Civil Engineering and Director of the Center for Geotechnical Engineering Science, Univ. of Colorado Denver, Denver, CO.
3. Associate Professor, Dept. of Civil Engineering, College of Civil Engineering and Architecture at the Hubei Polytechnic Univ.; Research Member, Center for Geotechnical Engineering Science, Univ. of Colorado Denver
4. Research Associate, 1805 Institute, LLC; Research Member, Center for Geotechnical Engineering Science, Univ. of Colorado Denver, Frederick, CO