UNIVERSITE DE BOURGOGNE THÈSE Yongbo LIU - Université de ...

forming many of the ideas I present and constructive criticisms of the work in early and late
stage.
Many thanks go to my master supervisor Qibin Zhang who enrolled me as a master to
start m y s tudy and ta ught me h ow to w rite E nglish a rticles. I a lso w ould l ike t o t hank t he
members of the Zhang lab, Hongyan Qiu, Lixin Lv, Gaiai Guo, Caiyun Liu, Chunming Shi,
Zongshan Li, Xiaochun Wang, Pei Xing and others for their help in my study.
I am very grateful to my friends in China, Zhongkui Luo, Weiqing Wang, Zhenchang
Liang, G uangkun Y in, Tingting M eng, J uan W ang, Fan Bai, J ianyin H u, C huanglong Li,
Liyan Zhang, Jin Shi, Sha Chen, Feng Wang, Liang Chen, and Qinglu Yuan, Xijiang Ouyang,
Yu Wei, as well as Xiaohong Yuan, Jianfen Li, Xiahui Peng, Yurong Wang, Yiping Fu, Kun
Chen, Honghua Xiao, Ji She, Jiaoyan Zhu and many many others for their constant assistance
in m y s tudy and d aily l ife. I’d l ike t o t hank J inlong Zhang, Lixin Lv and G uoke C hen i n
dealing with many kinds of administrative issues for my studying aboard.
The work presented here was financially supported by several projects of the Natural
Science F oundation of C hina (grant no. 30970432 a nd 30670316 ) and b y a P hD j oint
fellowship between China and France (CNOUS, No. 20072315).
Finally, special thanks go t o my family: my dad Yunzhong Liu, my mom Guitao Yi,
my ol d s isters Y anling Liu a nd Y anjiao Liu, m y l ittle br other X iaobo Liu, br others-in-law,
nephews and nieces. My parents still work hard and save money on food and expenses for my
study. Without your support, I could not have realized this goal. Thank you for the freedom to
pursue my own path - such a rare luxury for poor families in the world.
Thank you, thank you, thank you!
Yongbo LIU 刘勇波
iii