On November 22, 2008, Prof. Guofan SHAO from the Department of Forestry and Natural Resources of Purdue University in the United States, gave an academic lecture entitled "Tips of Writing" to graduate students and young scientific and technological workers in IUE, giving a simple tutorial on scientific research and scientific Writing methods. During the visiting, professor Shao had extensive communication with IUE researchers, and had a full discussion on the cooperative research work of related topics.