Looking back, at the moment of leaving France, I could not help writing some feelings with the purpose of giving some events to remember, also avoiding my future possible amnesia, just in case.

PREFACE

Why I am here, France?

Sep, 2005

An arbitrary chance, a meteor hits me. Prof. Chu recruited some doctoral students at the autumn of 2005 in XJTU. Holding a fluke mind, I took a part in the interview. By the way, that's the first time I met Prof. Chu, who directed my past two years' study in France. Like others, to give a good impression to Prof. Chu, I slightly exagerated my capability of programming. (Even if I have done somethings excellent in this aspect, but I don't thing I am an expert at programming.) After two-week waiting, I got the chance to go to France as a doctoral candidate of Prof. Chu. But at that time, I was just a junior master student. There is at least one and half year left for me to become a doctor candidate. As people know, only after having a master degree, you can apply a doctor in France. So I have enough time to make my preparation.

Knowing that I have the chance to pursue my study in France, my girlfriend could not accept this fact for a long time. Sorry for all these! But for my brillant future, she finally agreed.

At Mar 2007, I finally passed the master period. To equip the ability of living in France, I attended 4 monthes french study in Alliance Francaise in Xi'an. By the way, I had a wonderful life in this period and got some buddies in that franch class. But, at the same time, I only had evening to use in lab. Because the day-light time all I have has been spent on french learning. At a serious result, I have almost been kicked off from my lab by my advisor Prof. Xu. I totally understood that. If I were him, I would do the same thing to me. But after some difficult period I exerienced, I went through all these hardship with the help of a lot of key person. I express my gratitude to them here!

At Sep 2007, I got company to go to France.