Xu Chunfu was a famous medical expert in the Ming Dynasty, who authored the Gu Jin Yi Tong Da Quan and the Yi Xue Zhi Nan Jie Jing Liu Shu. This paper uses the Xu family genealogy, literature catalog, historical recor...Xu Chunfu was a famous medical expert in the Ming Dynasty, who authored the Gu Jin Yi Tong Da Quan and the Yi Xue Zhi Nan Jie Jing Liu Shu. This paper uses the Xu family genealogy, literature catalog, historical records to study the Xu family’s life and deeds. Xu Chunfu was born in the second year of the Jiajing reign of the Ming Dynasty (1523) and passed away in the 24th year of the Wanli reign of the Ming Dynasty (1596). He served as an official in the Tai Hospital for about 20 years. His work Gu Jin Yi Tong Da Quan was written around the 43rd year of the Jiajing reign of the Ming Dynasty (1556), with a lower limit of the fifth year of the Longqing reign of the Ming Dynasty (1571), and the initial engraving time was not earlier than the eighth year of the Wanli reign of the Ming Dynasty (1580). This paper corrects the shortcomings and errors in previous research, and provides a comprehensive and systematic examination of Xu Chunfu’s life and works.展开更多
The abrasive wear resistance of dual phase （DP） steels DP980 and DP600 was investigated by using an ASTM rubber wheel abrasion tester. At 2.40 m ·s-1 sliding speed under 19.9 N load with 180--355μm abrasive sa...The abrasive wear resistance of dual phase （DP） steels DP980 and DP600 was investigated by using an ASTM rubber wheel abrasion tester. At 2.40 m ·s-1 sliding speed under 19.9 N load with 180--355μm abrasive sands, the wear rates of DP980 and DP600 were 1.01 × 10^-11 and 0.86 ×10^-11 m3 · m-1 , respectively, correspond- ing to about 1.9 and 2.3 times of the relative wear resistance of normal low-carbon steel ASTM A283C. Using di- rectly water quenching from austenitic temperature, the abrasive wear resistance of DP980 samples under 19.9 N load could be improved by 1.65 times. The wear rates of DP980 and DP600 samples decreased respectively with in- creasing sliding speed and abrasive particle size and decreasing applied load. The experimental results reveal that the effect of martensite on the wear resistance not only depends on the volume fraction but also depends on the morphol- ogy, distribution and grain size.展开更多
基金the 2020 National Social Science Foundation Major Project(20&ZD222)Open Project of Key Laboratory of Xin’an Medical Education in 2022,“Research on the Active Utilization of Intangible Cultural Heritage Resources in the Gu Jin Yi Tong Da Quan"(2022xayx01)2022 Anhui Provincial Central Finance Traditional Chinese Medicine Special Fund“North Huatuo,South Xin’an”Inheritance and Innovation Project:Systematic Compilation and Audiovisual Protection Research of Xin’an Medical Traditional Medicine Intangible Cultural Heritage Project(2022BHTNXA02).
文摘Xu Chunfu was a famous medical expert in the Ming Dynasty, who authored the Gu Jin Yi Tong Da Quan and the Yi Xue Zhi Nan Jie Jing Liu Shu. This paper uses the Xu family genealogy, literature catalog, historical records to study the Xu family’s life and deeds. Xu Chunfu was born in the second year of the Jiajing reign of the Ming Dynasty (1523) and passed away in the 24th year of the Wanli reign of the Ming Dynasty (1596). He served as an official in the Tai Hospital for about 20 years. His work Gu Jin Yi Tong Da Quan was written around the 43rd year of the Jiajing reign of the Ming Dynasty (1556), with a lower limit of the fifth year of the Longqing reign of the Ming Dynasty (1571), and the initial engraving time was not earlier than the eighth year of the Wanli reign of the Ming Dynasty (1580). This paper corrects the shortcomings and errors in previous research, and provides a comprehensive and systematic examination of Xu Chunfu’s life and works.
基金Item Sponsored by Fundamental Research Funds for Central Universities of China(2013B18314)National Natural Science Foundation of China(51475140)+1 种基金Natural Science Foundation of Jiangsu Province(BK20141155)Tribology Science Fund of State Key Laboratory of Tribology of Tsinghua University(SKLTKF13B03)
文摘The abrasive wear resistance of dual phase （DP） steels DP980 and DP600 was investigated by using an ASTM rubber wheel abrasion tester. At 2.40 m ·s-1 sliding speed under 19.9 N load with 180--355μm abrasive sands, the wear rates of DP980 and DP600 were 1.01 × 10^-11 and 0.86 ×10^-11 m3 · m-1 , respectively, correspond- ing to about 1.9 and 2.3 times of the relative wear resistance of normal low-carbon steel ASTM A283C. Using di- rectly water quenching from austenitic temperature, the abrasive wear resistance of DP980 samples under 19.9 N load could be improved by 1.65 times. The wear rates of DP980 and DP600 samples decreased respectively with in- creasing sliding speed and abrasive particle size and decreasing applied load. The experimental results reveal that the effect of martensite on the wear resistance not only depends on the volume fraction but also depends on the morphol- ogy, distribution and grain size.
