Research on the development and experiment of a digital discus;

Teaching experimental research on emphasizing key techniques combination of four rotation axis of discus throw;

About the Left Support of the Body in the Discus Throw;

By applying four axis theory which emphasizes the third axis to discus throw teaching and using the teaching method of key techniques combination , the teaching achieved good performance , and moreover ,this kind of teaching method provided reference for improving discus throw teaching quality .

From He Jiaoxia s Success to See Amateur Woman Discus Teaching in Colleges;

Discussion of Young Discus Athlete Selection;

Research and Implementation of the Digital Railway Plan System;

The "digital railway" is the challenge and opportunity confronting the Chinese railways in the 21st century.

The 3D visualization is the necessarily result for development of the digital survey and mapping ,also the principal contents of the digital special subject(such as digital city, digital railway and RGIS-Railway Geographic Information System).

The path of discus flight and the effects of the throw velocity/angle,spin and wind conditions on discus flight are discussed in this paper,considering the aerodynamic force on the discus.