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The Development of Library and Information Profession in the chinese academy of sciences

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图书情报工作 1996年第1期 5-11页

作者： Meng GuangjunWang Bing (Documentation and Information Center, the chinese academy of sciences)

The infrastructure of the library and information system of the chinese academy of sciences is introduced, library and information service, and the applications of information technology are studied. The academic acti... 详细信息

关键词： chinese academy of sciences\ library and information profession\ China

A DELIBERATION ON SCIENCE DEVELOPMENT IN CHINA AND ON THE READJUSTMENT OF CONSTITUTIONAL DISCIPLINES IN the chinese academy of sciences

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Bulletin of the chinese academy of sciences 1995年第2期9卷 185-189页

作者： Lu Yongxiang(the chinese academy of sciences)

The CAS, as a national comprehensive research and development (R&D) center for natural science and high technology with numerous researchers of a high quality in almost all disciplines, plays a decisive role in the development of this country’s science and technology. Based on the trend of China’s development in the period of its Ninth Five-Year Plan and in the next century, this article analyzes the trends of science and technology of China in combination with the current readjustment in the constitution of science disciplines in the CAS.

关键词： A DELIBERATION ON SCIENCE DEVELOPMENT IN CHINA AND ON THE READJUSTMENT OF CONSTITUTIONAL DISCIPLINES IN the chinese academy of sciences CAS

A brief introduction to National Laboratory for Superconductivity, Institute of Physics, chinese academy of sciences

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Progress in Natural Science:Materials International 2002年第2期 80-82页

作者： LIU Jun and XU Xiaoping(Institute of Physics, chinese academy of sciences, Beijing 100080, China)

In line with the rapid development of research on high-temperature superconductors, the establishment of a National Laboratory for Superconductivity in the Institute of Physics, the chinese academy of sciences (CAS) was ratified by the State Commission of Development & Planning (SCDP) in 1987. The preparations were started in 1988, and in April of 1991,

关键词： Ph A brief introduction to National Laboratory for Superconductivity chinese academy of sciences

THE CAS AND CHINA'S FIRST MAN-MADE EARTH SATELLITE Lu Shouguan(chinese academy of sciences)

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Bulletin of the chinese academy of sciences 2000年第1期14卷 52-62页

作者： Lu Shouguan chinese academy of sciences Director of the former Task Office for Satellite Develop-ment under the CAS and former director of the CAS Bureau of Planning

In the festivedays whencelebrating the50th anniversa-ry of the found-ing of the Peo-ple’s Republic,and the 50th an-niversary of thefounding of thechinese Acad-emy of Scienc-es (CAS), it isnatural for thepeople to thi... 详细信息

关键词： chinese academy of sciences THE CAS AND CHINA’S FIRST MAN-MADE EARTH SATELLITE Lu Shouguan CAS

Meeting the New Members of the chinese academy of sciences (Chemistry, 2021)

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chinese Journal of Chemistry 2022年第4期40卷 539-549页

作者： Editorial Office of chinese Journal of Chemistry 不详

New Member of the chinese academy of sciences Xian-He Bu College of Chemistry,School of Materials Science and Engineering Nankai University,China Education 1982-1986 *** of Chemistry-Nankai University 1986-1992 *** of... 详细信息

关键词： New academy sciences

Meeting the New Members of the chinese academy of sciences

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chinese Journal of Chemistry 2020年第3期38卷 307-316页

作者： Editorial Office of chinese Journal of Chemistry 不详

Education.1978-1982 *** Polymer Chemistry,Department of Chemistry,jilin University,China .1985-1988 *** Polymer Chemistry,Changchun Institute of Applied Chemistry,chinese academy of sciences,China(Mentor:*** Xu).1992-1997 *** Polymer Chemistry,Department of Applied Chemistry,Waseda University,lapan(Mentors:Tsuchida Eishun and Hiroyuki Nishide)

关键词： Changchun Mentor academy

Sixty years growth and accomplishments of CAS Academic Divisions

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Science Bulletin 2015年第8期60卷 739-740页

作者： chinese academy of sciences chinese academy of sciences

Science Bulletin,a flagship academic journal sponsored and supervised by the chinese academy of sciences(CAS),has witnessed the exciting advances of science and technology(S&T)in China,as well as the active participation of the CAS in this *** the global largest scientific organization,the CAS has been the linchpin of China’s drive to explore and harness high technology and natural science for the welfare of humanity,serving as a national team and a locomotive driving the national technological innovation,a pioneer in supporting nationwide S&T development,a think tank delivering S&T advice,and a community for training young S&T *** Academic Divisions of CAS,with its members chosen from a great variety of disciplines,provide insightful advice on important strategies and major decisionmakings regarding China’s S&T development,functioning as a senior think-tank to the chinese *** Academic Divisions has also been a vigorous player in promoting science excellence by offering special support to the success of various China-based academic journals including Science Bulletin and Science China *** slipped by and now we are celebrating the 60th anniversary of the Academic Divisions of *** on the substantial contributions it made to the S&T development both at home and abroad,we look forward to an even greater success of the Academic Divisions of CAS in the new era.

关键词：中科院中国社科院科学组织中国科学院学术期刊学部委员自然科学高新技术

THE CALCULUS OF GENERATING FUNCTIONS AND THE FORMAL ENERGY FOR HAMILTONIAN ALGORITHMS

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Journal of Computational Mathematics 1998年第6期16卷 481-498页

作者： Feng K.(ICMSEC, chinese academy of sciences) ICMSEC Chinese Academy of Sciences China

In [2-4], symplectic schemes of arbitrary order are constructed by generating functions. However the construction of generating functions is dependent on the chosen coordinates. One would like to know that under what circumstance the construction of generating functions will be independent of the coordinates. The generating functions are deeply associated with the conservation laws, so it is important to study their properties and computations. This paper will begin with the study of Darboux transformation, then in section 2, a normalization Darboux transformation will be defined naturally. Every symplectic scheme which is constructed from Darboux transformation and compatible with the Hamiltonian equation will satisfy this normalization condition. In section 3, we will study transformation properties of generator maps and generating functions. Section 4 will be devoted to the study of the relationship between the invariance of generating functions and the generator maps. In section 5, formal symplectic erengy of symplectic schemes are presented.

关键词： generating function calculus of generating functions Darboux transformation cotangent bundles Lagrangian submanifold invariance of generating function formal energy

THE STEP-TRANSITION OPERATORS FOR MULTI-STEP METHODS OF ODE'S

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Journal of Computational Mathematics 1998年第3期16卷 193-202页

作者： Feng K.(ICMSEC, chinese academy of sciences) 中科院计算数学与科学工程计算所北京

In this paper, we propose a new definition of symplectic multistep methods. This definition differs from the old ones in that it is given via the one step method defined directly on M which is corresponding to the m step scheme defined on M while the old definitions are given out by defining a corresponding one step method on M × M ×…× M = Mm with a set of new variables. The new definition gives out a steptransition operator g: M → M. Under our new definition, the Leap-frog method is symplectic only for linear Hamiltonian systems. The transition operator g will be constructed via continued fractions and rational approximations.

关键词： Multi-step methods Explike and loglike function Fractional and rational approximation Simplecticity of LMM Nonexistence of SLMM.