院士风采

杨乐1939.11.10～

数学家。江苏南通人。1962年毕业于北京大学，并考取为中国科学院数学研究所研究生。中国科学院数学研究所研究员、所长。主要从事复分析研究。70年代对整函数与亚纯函数亏值与波莱尔方向间的联系作了深入研究，与张广厚合作最先发现并建立了这两个基本概念之间的具体联系。对亚纯函数奇异方向进行了深入研究，引进了新的奇异方向并对奇异方向的分布给出了完备的解答。对全纯与亚纯函数族的正规性问题进行了系统研究，建立了正规性与不动点间的联系。与英国学者合作解决了著名数学家立特沃德的一个猜想。对亚纯函数的导数的总亏量与整函数的亏值数目做出了精确估计。

1980年当选为中国科学院院士（学部委员）。

Mathematician.Born in Nantong, Jiangsu Province.Graduated from Peking University and enrolled in the Institute of Mathematics, Chinese Academy of Sciences as a graduated in 1962.Research professor and director, Institute of Mathematics,Chinese Academy of Sciences,

Yang is mainly engaged in the research on complex analysis.In the 1970s, he made further study on the relation between deficient values and Borel directions of entire and meromorphic functions.Cooperated with Zhang Guanghou , he first discovered and established the detailed relation between these two basic concepts.He made further study on singular directions of meromorphic functions, introduced a new kind of singular directions and gave the perfect solution to the distribution of singular directions.He systematically studied the normality for families of holomorphic or meromorphic functions and established the relationship between the normality and fixed point.He and a British mathematician solved a conjecture posed by the exact estimation on the total deficiency of derivatives of meromorphic functions and the number of deficient values of entire functions.

He was elected Member of the Chinese Academy of Sciences in 1980.

杨澄中1913.04.17～1987.12.28

核物理学家。江苏常州人。1937年毕业于中央大学物理系。1950年获英国利物浦大学哲学博士学位。中国科学院近代物理研究所研究员、所长、名誉所长。主要从事静电加速器、高压倍加器和重离子加速器的研制及实验核物理研究并取得多项重要成果。50年代以来，与赵忠尧一起领导了中国第一台静电加速器的研制，负责指导了碘化纳（铊）等闪烁晶体的制备，负责了中国第一台高压倍加器的研制，组织领导了兰州重离子加速器的建造和重离子核物理实验研究工作，取得许多创见性成果。

1980年当选为中国科学院院士（学部委员）。

Nuclear physicist.Born in Changzhou, Jiangsu Province.Graduated from the Department of Physics, Central University in 1937.Received Ph.D.from the University of Liverpool, UK in 1950.Research professor, director and honorary director, Institute of Modern Physics, Chinese Academy of Sciences.

Yang was mainly engaged in the development of static accelerator, Cockcrost-Walton and heavy ion accelerator and the research on experimental nuclear physics and he obtained many important results.From the 1950s, he and Zhao Zhongyao led the development of China’s first static accelerator.He took charge of instructing the preparation of the flashing crystals of NaⅠ(T1)and other compounds and developing China’s first Cockroft-Walton accelerator.He organized and led the construction of Lanzhou heavy ion accelerator and the experimental research of heavy ion nuclear physics.He got many original results in the above-mentioned work.

He was elected Member of the Chinese Academy of Sciences in 1980.

李林1923.10.31～2002.05.31

物理学家。女。蒙古族。原籍湖北黄冈，生于北京。1944年毕业于广西大学机械系。1948年获英国伯明翰大学哲学博士学位。中国科学院物理研究所研究员。50年代从事球墨铸铁、微量硼替代低合金结构钢中的镍及铬合金、包头铁矿的耐火材料腐蚀问题等研究，为国家建设起了一定的作用，并在1956年获中国科学院自然科学奖三等奖、1981年获国家自然科学奖三等奖。60至70年代从事核反应堆材料与元件的辐照损伤研究，为我国生产反应堆、核潜艇反应堆等作出了一定贡献。19802年曾得到Tc=23K的A15Nb3Ge薄膜并提出成相规律，获得国际同行的好评。1987年以来开展了高温超导薄膜与器件的研制，达到国际水平，发表论文百余篇，获1991年中国科学院科技进步奖一等奖、1992年国家科技进步奖二等奖。

1980年当选为中国科学院院士（学部委员）。

Physicist.Female.Mongolian nationality.Born in Beijing.Graduated from Gguangxi University in 1944.Received Ph.D.from Cambridge University, UK in 1951.Research professor, Institute of Physics, Chinese Academy of Sciences.

Li is mainly engaged in the research on materials science.In the 1950s,she conducted research on nodular iron, substitution of minute quantity of B in the Ni and Cr structural steels, the corrosion of fine bricks of Baotou iron ore.From the 1960s to 1970s, she did a lot of work for the construction of nuclear reactors conducted and transmission electron microscopy.After 1973, she did research on superconducting materials and obtained the A15 Nb3Ge film with 23K of critical temperature in 1980.She proposed a phase formation mechanism and was supported by wellknown foreign scientists.Since 1987, she has worked on high temperature superconducting films and devices which has reached the international standard and promoted the research and technology of Chinese superconductors.

He was elected Member of the Chinese Academy of Sciences in 1980.

李正武1916.11.08～

物理学家。浙江东阳人。1938年毕业于清华大学。1951年获美国加州理工学院博士学位。中国核工业西南物理研究院研究院、名誉院长。长期从事核物理、等离子体物理和受控核聚变等方面的研究，并领导解决了若干重大关键技术问题。40至50年代，在轻原子核反应方面完成多项实验研究，对爱因斯坦质量能量转换关系作出当时最精确的直接实验测定。是中国第一台2.5兆电子伏质子静电加速器和第一台电子静电加速器的主要研制者之一。1955年提出在我国开展受控热核反应研究的规划建议。80年代初期领导研制成功“中国环流器一号”受控核聚变实验装置。

1980年当选为中国科学院院士（学部委员）。

Physicist.Born in Dongyang, Zhejing Province.Graduated from Tsinghua University in 1938.Received Ph.D.from California Institute of Technology, USA in 1951.Research professor and honorary director, Southwestern Institute of Physics, Chinese Nuclear Industry.

Li has been engaged in research on nuclear physics, plasma physics controlled fusion, etc, for a long time and has led the solution of a number of important key technological problems.From the 1940s to 1950s, he completed a series of experimental research on light nuclear reactions and made experimental determination of the Einstein mass and energy conversion relation, which was the most precise direct measurement at that time.He was one of the main designers of China’s first 2.5 MeV proton electrostatic accelerator and first electron electrostatic accelerator and was one of the chief originators of the early plans for high energy accelerator in China.In 1955, he made the program proposal to embark controlled thermonuclear reaction research in our country.In the early 1980s, he led the successful development of the fusion experimental device, “National Toroidal Circulator-1”.

He was elected Member of the Chinese Academy of Sciences in 1980.