The National Government appointed Cheng as the president of Sichuan University. Although Cheng served as ambassador to Germany and director of the Anhui Provincial Department of Education, he was generally opposed by Sichuan University professors and public opinion. Out of indignation, Zheng Yanfen twice signed the declaration of refusing to go to school initiated by Professor Zhu Guangqian and others. 1939, Cheng moved to Emei in the name of evacuation. 1940 In August, Zheng Yanfen resigned as the head of the Department of Physics and became a professor only. 194 1 year, Chongqing university students made trouble and drove away the principal. The Ministry of Education appointed Zhang Hongyuan as the director of the reorganization committee, and Zheng Yanfen and other four members. Half a year later, Zhang Hongyuan became the principal and Zheng Yanfen was the provost. At this time, the struggle in the school was sharp and the relationship was complicated, but he was fair and upright, rigorous in style, cautious and methodical in handling teaching work. Also often assist the general affairs department to do a good job, in order to better stabilize the teaching order. Because he can think of others in his work, he has great prestige among the teachers and students of Chongqing University.
At that time, Central University and Chongqing University were both in Shapingba, and the physics departments of the two universities often jointly held reports and seminars, which were presided over by professors of the two universities in turn. Zheng Yanfen was the organizer and active participant. While serving as the dean of the busy Chongqing University, Zheng Yanfen also actively participated in the activities of the Chinese Physical Society. 1941-1943 He is one of the directors of the Physical Society 12 and a member of the Physical Terminology Review Committee. Due to the scattered units and inconvenient transportation, the annual meetings of the Chinese Physical Society 10 and 1 1 will be divided into six districts. Zheng Yanfen and others are leaders of the Chongqing Preparatory Committee. 1942 12 Chongqing District 10 will be held in Chongqing University, with Zheng Yanfen as the chairman. Yan Jici made a special trip from Kunming to Chongqing. Together with Hengli, he gave a speech on "Twenty Years' Progress of Physics in China and the Chinese Physical Society", and also held a commemorative meeting for Newton's 300th birthday. 1943 Kunming, Chongqing and Xichuan set up branches according to the articles of association of the Physical Society. The directors of Chongqing Branch are Zheng Yanfen, Shih-Yuan Sze and Zhou Tongqing. 1943165438+1The annual meeting was held in Chongqing University and Central University on1October 28th and 29th, and Zheng Yanfen continued to be the chairman of the meeting. He is also a member of China Science Society, and once served as the editorial board of Science magazine.
Although Zheng Yanfen is very busy, she still undertakes the teaching of modern physics, electromagnetic theory and thermodynamics. He is also very concerned about middle school physics education. At that time, middle school textbooks, especially experimental textbooks, were scarce, so he reprinted the first edition of Elementary Physics Experiment edited by Ye He in the late 1920s to solve the urgent need.
When Wu was the president of Central University, Zheng Yanfen served as the director of the president's secretarial office. 1946, Central University moved back to Nanjing, and Wu invited Zheng Yanfen to go east. Zhang Hongyuan, the president of Chongqing University, was stranded because of many affairs in Chongqing University, and was unable to go to the east. However, he served as the director of the Chongqing Detention Center of Central University and handled the unfinished affairs of Central University for about one year.
1949 In the first half of the year, the white terror in Chongqing was serious. When President Zhang Hongyuan learned that more than a dozen progressive students were blacklisted, he quietly told Zheng Yanfen. Hearing this, he went to the dean's house of the department where these students were, and asked them to tell these students to leave school as soon as possible. So no students were caught, and teachers and students were very happy. 1In August, 949, Zheng Yanfen visited Britain, France, Switzerland and other countries at the invitation of the British Council. After hearing the good news of the establishment of People's Republic of China (PRC) abroad, he returned to China with great excitement in February 1950. Wu, vice president of China Academy of Sciences, wants him to work in China Academy of Sciences. After the efforts of Chongqing University, he felt that the southwest needed him more. He returned to Chongqing University as the deputy director and provost of the school affairs committee.
After 1950, about two years later, more than a dozen teachers from the physics department of Sichuan University applied to go north. Due to the shortage of teachers, they requested support from Chongqing University. 1952, Zheng Yanfen came to Sichuan University. He politely declined all administrative posts and concentrated on teaching and scientific research. He was also invited to participate in the relevant national teaching conference, bringing back the spirit of the conference and guiding the teaching reform of the Department of Physics. 1952 after the adjustment of the department, I attended the Qingdao meeting of the Ministry of Higher Education to formulate a new teaching plan for the Department of Physics, and brought back two kinds of teaching plans (Class A plan is required by the Ministry of Higher Education, and Class B plan is a transitional plan that the school conditions are not yet available). Zheng Yanfen actively promoted the implementation of the new teaching plan, making Sichuan University one of the universities offering four basic theoretical physics courses according to the requirements of the Ministry of Higher Education. From 1953, I personally taught Thermodynamics and Statistical Physics for three years, and sorted out the handouts of this course earlier in China. He is knowledgeable, but he still modestly absorbs the strengths of various families. He took the initiative to discuss with Wang Zhuxi the reform and improvement of the course of Thermodynamics Statistical Physics, referring to and later adopting Wang Zhuxi's textbook. He also sent teaching assistants to Peking University to ask Wang Zhuxi for advice, learn their experience, collect handouts written by other experts (such as Lu Hefu), and brainstorm. He prepares lessons carefully, writes notes neatly and carefully, consults and records students' feedback, and rewrites his notes every year. Although there are many social activities and teaching administrative work, we are never careless in preparing lessons every time. Work late into the night every day, and insist on attending classes on time even if you are unwell. He is amiable and approachable, and he is extremely concerned about the growth of students and young teachers. Teach knowledge without reservation, patiently answer questions, tirelessly teach and educate people, rigorously study, and set an example. He not only enthusiastically guides young teachers, but also introduces them to his familiar physics predecessors such as Wang Zhuxi, Wang, He, Ye Yunli and Zhou Shixun for advice. 195 1 In August, the first member congress of the Chinese Physical Society was held in Beijing, and 2 1 directors were elected. Zheng Yanfen was elected as the director. After returning to Sichuan, he actively established physics societies in Chongqing and Chengdu to organize and carry out activities.
195 1 In September, Professor Xie introduced him to join the Jiu San Society. 1956, he was elected as a member of the Central Committee of the Jiu San Society.
After visiting the laboratory of Nobel Prize winner C.F. Powell in Britain, Zheng Yanfen thinks that it is a good research direction to do nuclear physics experiments with nuclear latex, which can be carried out in southwest China. At first, I gave a report on "Overview of the Application of Photographic Latex in Nuclear Physics" in the teaching and research section, and at 1957, I gave a report on "Overview of the Research Meson of Photographic Latex" in the physics branch of the whole school scientific seminar, and guided young teachers to do some preliminary work. In 1970s, his students and physics teachers from Chongqing Institute of Civil Engineering and Architecture participated in the construction of the world's highest cosmic ray latex room in gambara Mountain, Tibet.
Because Zheng Yanfen has a high reputation in the field of physics, 1959, the leaders of Sichuan University asked him to be the head of the physics department again.
1962 In order to implement the policy of "adjustment, consolidation, enrichment and improvement", the workload of the department head of Zheng Yanfen was increased. At that time, the physics department had nearly 1000 students, more than 200 faculty members, 10 teaching and research groups and 5 special groups. Zheng Yanfen works methodically and meticulously, focusing on improving teaching quality, rectifying teaching order and handling problems safely and timely. He often listens to the opinions of the masses with an open mind and is deeply respected by everyone.
During the period of 1964, the "four clean-ups" movement of Sichuan University focused on the physics department and criticized teachers with strong professional skills. However, as the head of the department, Zheng Yanfen often talks about the importance of professional knowledge and the scarcity of talents with strong professional skills, and gives appropriate protection. Zheng Yanfen died in Beijing on February 9, 1979 at the age of 86.