My research interests include theoretical analysis, data analysis, numerical modeling, large-scale scientific computation, research programming and software development in chemical, physical, biological and other related systems. Recent projects include multi-scale modeling of skin homeostasis and radiation damage, molecular dynamics simulations of Ku-DNA binding system, biomathematical modeling of acute radiation risk and hematopoiesis alteration, real time modeling of space radiation exposure and health risk assessment, and software development of ARRBOD, NSCR and HemoDose.