With the rapid development of statisticmechanics theory and computer technology, computer molecular simulation has became a powerful tool to study the fluid in molecular level.
In 1955, he became Professor in Princeton University. Although he has carried out many studies in the fields of physics, he concentrated on statisticmechanics and symmetry principle.
Mathematical statistic methods of rock mechanics parameters are studied, mostly including abnormal data preprocessing, random-fuzzy method, test on probability distributing.