1. Department of System and Industrial Engineering, University of Arizona, 1127 East James E. Rogers Way, Tucson, Arizona 85721, United States
2. Physical and Life Sciences Directorate and Engineering Directorate, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
3. Department of Civil and Environmental Engineering, Duke University, 127A Hudson Hall, Durham, North Carolina 27708, United States