the study on the historical compiling for the period of Jianwen during the Ming dynasty 政局变迁与历史叙事：明代建文史编撰研究：the study on the historical compiling for the period of Jianwen during the Ming dynasty Study on the history of foreign trade during the Qing dynasty Study on the ecological environment of the central plains during the Shang dynasty 并列题名：Study on the ecological environment of the central plains during the Shang dynasty Study of the Hexi Corridor and the Silk Road during the Ming dynasty a study on the history of Chinese migration to Thailand in Qing dynasty A study of the land system in Jiangnan during the Ming dynasty the story of the jesuits in China in the last decades of the Ming dynasty Study on the dictionaries compiled by foreigners during the late Qing dynasty