【开场】：-Thank you very much, Prof. William, for your very kind introduction. Mr. Chairman, Ladies and gentleman, Good morning! I consider it a great honor to be asked to speak about on this session of our symposium.-Ladies and gentleman. Its an honor to have the opportunity to address such a distinguished audience.-Good morning. Let me start by saying just a few words about my own background.-Mr. Chairman, thank you very much for your kind introduction. President, Distinguished col
