Chinese physicist and academician of China Academy of Sciences Yan Jici (190 1━ 1996),1was born in Dongyang, Zhejiang Province on October 23rd,1901. 1923 graduated from the Department of Mathematics and Physics of Nanjing Normal University and the Department of Physics of Southeast University with a bachelor of science. 65438-0925, Master of Paris University. 1927 received the doctor of science degree in France. 1927 Up to now, he has been a professor at Shanghai Datong University, Zhonghua College, Jinan University and Nanjing No.4 Sun Yat-sen University. Since 1928, he has been engaged in scientific research in the Institute of Optics of Paris University and the large electromagnet laboratory of French Academy of Sciences. 193 1 became a researcher, director and director of the Institute of Physics of Beiping Research Institute. 1935- 1938 was elected as the director of the French Physical Society. 1948 was elected as an academician of Academia Sinica and chairman of the Chinese Physical Society. After 1949, he served as director of the general office of China Academy of Sciences, director of the Institute of Applied Physics, dean of Northeast Branch, director of technical department, vice president, executive chairman and honorary chairman of the presidium; Professor and president of China University of Science and Technology, secretary, vice-chairman and honorary chairman of the Secretariat of China Association for Science and Technology; Honorary Chairman of Chinese Physical Society and chinese optical society, Editor-in-Chief of China Science and Science Bulletin, and Deputy Director of Editorial Board of Encyclopedia of China. He was a member of the 3rd, 4th and 5th the National People's Congress Standing Committee (NPCSC), vice chairman of the 6th and 7th Standing Committee, vice chairman of the Central Committee of Jiu San Society and honorary chairman. 1980 65438+ 10 joined the China * * * production party.

Yan Jici is one of the pioneers of modern physics research in China, and has made great achievements in piezoelectric crystallography, spectroscopy, atmospheric physics and applied optics. He accurately measured the "inverse phenomenon" of Curie piezoelectric effect and found the optical birefringence effect; The phenomenon of torsional charging of crystal cylinder is systematically studied, and the law of torsional charging of crystal is found. The isospectrum of alkali metal vapor is deeply studied, and it is found that the effective cross section of axisymmetric molecules is inconsistent with Fermi-Rainsberg equation, which provides rich experimental proof for Stark effect in atomic physics. In the experimental study of ozone layer in atmospheric physics, he accurately measured the ultraviolet absorption coefficient of ozone, which has been used by meteorologists all over the world for 30 years. He also studied the influence of pressure on the photosensitivity of photographic latex, and found that pressure can weaken the photosensitivity of latex. During his stay in War of Resistance against Japanese Aggression, Yan Jici led the research on applied optics, developed a large number of military and medical optical instruments and equipment, and won the Medal of Victory.

Yan Jici published 53 papers in academic journals in France, the United States, Britain, Germany and other countries, and collected and published "Essays on Science in Yan Jici" at 1986. He also compiled 10 kinds of mathematics and physics textbooks from junior high school to university, such as junior high school arithmetic, geometry proof, general physics, senior high school physics, junior high school physics, the first and second laws of thermodynamics, electromagnetism and so on. China has trained several generations of scientific and technological talents and many scientists, and made great contributions to the development of science education in China.