I will graduate in a few months. I will sort out and publish some of my inter-class works during the school period. Some of them are from the junior and senior years. The main reason is that there is less design during the graduate period and more thinking. I have to say that there is indeed a big gap between being able to do and being able to express, so that it took me a year and a half to write a paper. I hope I can find a Bole. I would like to thank everyone who has supported and helped me for the past seven years and more than 2,000 days and nights.