November 30，The Land Construction Research Institute invites relevant experts to form a defense committee，To Du Yichun、The work status and exit qualifications of two postdoctoral fellows Zhang Weihua during their stay at the station were reviewed。The chairman of the committee is Professor Ren Zhiyuan of Shaanxi Normal University，Committee members include Professor Wang Yiquan of Northwest A&F University、Professor Li Tuansheng of Chang'an University、Professor Wang Ni from Xi'an University of Technology、Senior Engineer Cheng Shengquan of the Group Company、Senior Economist Gao Jianjun and Researcher Luo Lintao。

Experts from the defense committee questioned and discussed the defense reports of two postdoctoral fellows，Two postdocs gave detailed answers to experts’ questions。After review by experts of the defense committee，It is agreed that the two comrades have a solid theoretical foundation and the ability to independently engage in scientific research，Completed postdoctoral research tasks as required，Agree to exit。

Du Yichun and Zhang Weihua are the first batch of postdoctoral fellows since the group company established the postdoctoral research workstation，The smooth departure of two postdoctoral fellows marks that the group company has achieved new results in cultivating high-level talents。