1973
Convene a conference on the compilation of flora and fauna in China
China Fauna and Flora is a national basic scientific data, which comprehensively and systematically summarizes the species, distribution, systematic relationship and economic significance of China’s organisms, and provides basic data for the exploration and utilization of national biological resources and related construction, scientific research and teaching work. The national flora and fauna is one of the symbols reflecting the development level of a country’s biological science. Many countries in the world attach great importance to compiling national flora and fauna. In 1959 and 1963, China Academy of Sciences established the Editorial Committee of Flora of China and Fauna of China, and organized relevant biologists inside and outside the Academy to compile the Fauna and Flora of China.
With the approval of the State Council, the conference on the compilation of flora and fauna of China hosted by China Academy of Sciences was held in Guangzhou from February 29th to March 7th, 1973. Attending the meeting were 181 representatives from relevant scientific research units, universities, science and technology management departments, cultural, educational and health units in 26 provinces, municipalities and autonomous regions. This meeting discussed some principles of compiling flora and fauna, such as: compiling flora and fauna should be improved on the basis of popularization, and it should be strict and scientific, reflecting the level of China; We should not only ensure quality, but also strive for speed, so as not to affect quality because of greed and quickness, and also avoid delaying time because of unrealistic requirements for quality; In the deployment of work, it is necessary to prioritize, and concentrate as much as possible on the flora and fauna that are closely related to the economy, important in the scientific sense and rich in information, and prepare them first to ensure completion; Correctly handle the relationship between the compilation of China flora and fauna and local flora and fauna, and pay attention to giving full play to the enthusiasm of the central and local governments.
At the meeting, the editorial boards of Flora of China and Fauna of China were adjusted and enriched, and the editorial board of Spore Flora of China was established. These three editorial boards are led by the Institute of Botany, the Institute of Zoology and the Institute of Microbiology of China Academy of Sciences respectively. The meeting drew up the compilation plans (drafts) of Fauna of China, Flora of China and Flora of Spore of China. These drafts will be implemented as formal plans after obtaining the consent of relevant competent departments and units undertaking tasks.
Reprints of China Science and Science Bulletin
China Science and Science Bulletin, comprehensive natural science journals sponsored by China Academy of Sciences, were suspended for seven years after the Cultural Revolution. At the strong demand of the majority of scientific workers, it was reissued in February this year and publicly issued at home and abroad.
The editorial board appointed by the Academy of Sciences is responsible for editing the reissue of China Science, which is divided into Chinese and foreign languages. It publishes papers that study natural science theories and summarize production struggles and scientific experiments; Papers from different schools of natural science and articles on major scientific and technological achievements. On February 17th, the Academy of Sciences informed the Science Bulletin that there would be no editorial board, and the editorial board of China Science would be responsible for it. It publishes scientific and technological research achievements, academic trends and some critical articles. In the historical environment at that time, the two publications had to compile and distribute some political articles. The first issue of Science Bulletin was published in July.
By September this year, there were more than 30 kinds of journals and intermediate academic journals that stopped publishing in 1966.
Establishment of theoretical system of bulk fluidization in chemical metallurgy
The theoretical system of bulk fluidization in chemical metallurgy was put forward by Guo Musun, a researcher at the Institute of Chemical Metallurgy, Chinese Academy of Sciences, in his article "Bulk Fluidization in Chemical Metallurgy". This paper was published in the third issue of China Science in 1973, and was read out at the first Iranian chemical engineering conference in May of that year.
Fluidization refers to the state that solid particles are suspended under the action of fluid, and the particle group at this time is similar to fluid. Generally speaking, fluidization can be divided into two categories: scattered fluidization and aggregated fluidization. The granular materials in the fluidized bed are evenly dispersed and smoothly fluidized, which is called loose fluidization. Usually, liquid-solid systems form bulk fluidization. Fluidization technology has been used in industry for decades and is a mature technology. However, due to the complexity of the movement law of particles and fluids, the complex factors of chemical reaction and reactor, and the fluidization technology itself involves many disciplines such as multiphase fluid mechanics, chemical reaction engineering, particle science and statistics, etc. Although scholars at home and abroad have done a lot of theoretical research work and accumulated a lot, there is no completely unified theory to describe it, and there is also a lack of methods for reactor scale-up and design, so the design scale-up of industrial fluidized reactors is still based on experience.
Guo Musun’s paper points out the characteristics of a completely uniform ideal fluidization system and explains some concise parameter relations in this ideal fluidization. This theory can be used as a useful tool to analyze many practical fluidization engineering problems, clarify the relationship and operation mechanism of various operating variables, explain some practical phenomena, and have enlightenment significance for the design method and development direction of fluidization technology. On the basis of summarizing predecessors’ work, Guo Musun grasped the characteristics of uniform and stable liquid-solid bulk fluidization, put forward the theory of bulk fluidization, and formed an independent and complete theoretical system, which was a breakthrough in the basic theoretical research of fluidization and applied it in practice. This research achievement won the second prize of the National Natural Science Award in 1982.
The science and technology group of the State Council Science and Education Group was merged into the Academy of Sciences.
On August 11th, the State Council Science and Education Group and China Academy of Sciences issued a joint notice to all localities and departments, and China Academy of Sciences was responsible for organizing the formulation of long-term scientific and technological plans and annual plans for civil use, the allocation of three scientific and technological expenses and corresponding materials, and the coordination and inspection of plans. On August 24th, the office meeting of China Academy of Sciences decided that the agency responsible for this work should be the Science and Technology Office of China Academy of Sciences.
After the merger of the State Science and Technology Commission and China Academy of Sciences on July 1, 1970, China Academy of Sciences set up the first business group (also known as business group 1) to take charge of the work of the former State Science and Technology Commission. After the National Conference on Education in July 1971, the State Council decided to set up a science and education group to take charge of the work of the former State Science and Technology Commission and the Ministry of Education. Li Siguang is the team leader, and Liu Xiyao and Chi Qun are the deputy team leaders. After Li Siguang’s death in 1971, Liu Xiyao took over as the leader of the State Council Science and Education Group.
In July and August, 1972, the Science and Education Group and the Academy of Sciences agreed that the national science and technology management work should be centralized by the Science and Education Group of the State Council, and the business personnel of the comprehensive plan and scientific experiment dynamic group of the first business group of the Academy of Sciences were transferred to the Science and Education Group to form a science and technology group. In May, 1973, the Science and Education Group asked Premier the State Council and Premier Zhou Enlai for instructions, and thought that the China Academy of Sciences, which is in charge of scientific and technological work in various departments and localities of the national economy, has great limitations, so it is difficult to do a good job and it is easy to attend to one thing and lose sight of another. It is suggested that the scientific and technological work in the production and construction of various departments and localities of the national economy should be planned and coordinated by the State Planning Commission. Medical and health science and technology work is still centralized by the Ministry of Health. The report also puts forward specific suggestions on the tasks and responsibilities of the State Council Science and Education Group in science and technology. The State Council did not reply to the report. However, after the establishment of the Science and Education Group, Premier Zhou Enlai repeatedly suggested that the Science and Education Group should not have more staff, and the scientific and technological work should rely on the China Academy of Sciences.
In August, 1973, the members of the Science and Technology Group of the State Council Science and Education Group withdrew to China Academy of Sciences, and continued to be responsible for the management of national science and technology work in the name of the Office of Science and Technology. This situation was maintained until the reconstruction of the State Science and Technology Commission.
Complete the determination of 1.8 angstrom pig insulin crystal structure.
In August, the Beijing insulin crystal structure research group, composed of the Institute of Physics of Chinese Academy of Sciences, the Institute of Biophysics and relevant personnel from Peking University, completed the determination of the crystal structure of 1.8 angstrom pig insulin.
The determination of insulin crystal structure began in June 1967. Insulin is a biological hormone, and it is the smallest protein. The biological activity of protein is not only related to its chemical structure (generally called primary structure), but also closely related to its spatial structure (generally called three-dimensional structure). The purpose of determining the crystal structure of insulin is to determine the relative position and relationship of each atom of insulin molecule in three-dimensional space, which can provide an important basis for further studying the mechanism of its biological activity and exploring the relationship between its structure and function. The work of the research group includes: the cultivation of insulin single crystal, the preparation of heavy atom derivatives, the collection and processing of X- ray diffraction data, the calculation of phase angle of structural factors, the analysis and interpretation of electron density diagram, the establishment of structural model and other steps. On the basis of measuring the resolution of 4 angstrom and 2.5 angstrom in September 1970 and January 1971, the measurement of the resolution of 1.8 angstrom was completed in August this year. The research on the determination of the crystal structure of porcine insulin won the second prize of the National Natural Science in 1982.
Like the synthetic yeast alanine transfer ribonucleic acid, the research on the determination of the crystal structure of porcine insulin was successful in the Cultural Revolution, thanks to the support of Vice Premier Nie Rongzhen.
The initial-boundary value difference method and the mathematical basis of flow calculation are put forward
Since 1960, the Computational Mathematics Laboratory has been undertaking the research on aerodynamic and aerothermal numerical methods of missiles and satellites, and has provided a large amount of data for the entrusting department. By the mid-1960s, Zhu Youlan and others put forward a set of systematic and high-precision calculation methods based on the theory of separation singularity and characteristics-the difference method for initial-boundary value problems and inviscid flow, and in 1973 gave the mathematical basis of the methods.
This method has high accuracy. At that time, because of the equipment embargo, it was impossible to import large-capacity and ultra-high-speed computers, and the aerodynamic force and flow field of aircraft could be well calculated by using the computer developed by China. Not only the shape of the blunt cone can be accurately calculated, but also the shape and flow field of the blunt cone-column-skirt combination can be accurately calculated. It has provided the results of flow field data for the first recoverable satellite in China, and contributed to the safe and accurate return of the satellite to the ground. Users praised this method for giving a set of numerical methods for initial-boundary value problems of hyperbolic equations, which achieved high accuracy and were more perfect, more careful and more unique than similar works abroad. In 1982, this achievement won the third prize of the National Natural Science Award.
Model 655 computer was successfully trial-produced.
In 1964, IBM Corporation of the United States announced the successful development of the IBM360 integrated circuit computer system, which opened the curtain of the third generation computer, and this trend attracted the attention of computer technology experts in China. The following year, East China Computing Institute began to develop 655 integrated circuit computers. The required integrated circuits are trial-produced by Shanghai Metallurgical Institute and relevant semiconductor factories in Shanghai. The machine was successfully trial-produced in 1973, with an operation speed of 1 million times per second and a memory capacity of 128,000 words. At that time, it was the fastest integrated circuit computer with the largest memory capacity in China.
This computer, together with Model 013 integrated circuit computer with a computing speed of 2 million times per second, which was developed in 1976, jointly undertook a large number of computing tasks in the development of atomic bombs, missiles and artificial satellites after the 109 C computer.