On May 17, 2021, the graduation defense of Dr. Ren Guiping, Zhou Wei and Li Junlin was successfully held in 312 of the south floor. During the defense committee composed of six high-level control experts inside and outside the university, the work of the three doctors and their graduation thesis were strictly and carefully evaluated.The committee adhered to the strict and fair attitude, obeyed the standard defense process, listened to the student's report to carry out the in-depth exchange.Finally, after the discussion and review of the experts, the three doctors are officially announced to pass the graduation defense.The experts highly affirmed the work of the three doctors, and appraised their high academic value, taking into account the theoretical depth and engineering significance, and meeting the requirements of doctoral graduation.The experts also put forward a lot of valuable opinions and suggestions in view of their problems, giving the Doctors who are about to graduate a profound last lesson.

Sincerely thank the teachers of the research group for their inculcation and tiringly teaching, and the experts for their evaluation and correction. Congratulations to Dr. Ren Guiping, Zhou Wei and Li Junlin for successfully passing the graduation defense!