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FLOURISHING ACTIVITIES OF THE ACADEMIC DIVISIONS
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作者 Zhang Yutai and He Renfu(The Chinese Academy of Sciences) Dupury Secretray General of the CAS and Director of General Office of the Academic Divisions of theCAS Deputy Director of General Office of the Academic Divisions of the CAS 《Bulletin of the Chinese Academy of Sciences》 1995年第2期122-125,共4页
In January 1984, the Academic Divisions of the CAS,which was established in 1955, held its fifth General Assembly after experiencing 30 years of trials and hardships, marking the beginning of a new period of flourishi... In January 1984, the Academic Divisions of the CAS,which was established in 1955, held its fifth General Assembly after experiencing 30 years of trials and hardships, marking the beginning of a new period of flourishing development.Ten years passed between the fifth assembly and the seventh one,which was held in June 1994.It was in this decade that the Academic Divisions gradually assumed the practice of the international science community according to the domestic situation and international convention by making clear the nature and functions of the Academic Divisions and of their Members, renaming Division Mem- 展开更多
关键词 CAS FLOURISHING activities OF THE ACADEMIC DIVISIONS
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Preliminary division of active block boundary in Chinese mainland based on recent vertical crustal movement
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作者 李延兴 杨国华 +2 位作者 杨世东 郭良迁 许忠淮 《Acta Seismologica Sinica(English Edition)》 EI CSCD 2001年第1期12-17,117,共7页
The characteristics of vertical crustal movement in Chinese mainland are studied, and the ideas and principles for dividing active blocks according to the map of recent vertical crustal deformation rate in China is pr... The characteristics of vertical crustal movement in Chinese mainland are studied, and the ideas and principles for dividing active blocks according to the map of recent vertical crustal deformation rate in China is proposed. As a result, Chinese mainland is divided into 2 first-grade blocks, the east and west block, 6 second-grade blocks, the Northeast China, North China, East China, Xizang (Tibet), Gansu-Qinghai-Xizang (Gan-Qing-Zang) and Xinjiang block, and 16 third-grade blocks. The boundaries of active blocks divided in this paper are generally consistent with the pattern of neotectonic movement with some local difference. It shows that the recent crustal activity in Chinese mainland inherits the neotectonic movement occurred since the Quaternary, while some new activity tendencies appear. 展开更多
关键词 vertical crustal movement division of active block
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H_(∞)/Passive Synchronization of Semi-Markov Jump Neural Networks Subject to Hybrid Attacks via an Activation Function Division Approach
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作者 ZHANG Ziwei SHEN Hao SU Lei 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2024年第3期1023-1036,共14页
In this work,an H_(∞)/passive-based secure synchronization control problem is investigated for continuous-time semi-Markov neural networks subject to hybrid attacks,in which hybrid attacks are the combinations of den... In this work,an H_(∞)/passive-based secure synchronization control problem is investigated for continuous-time semi-Markov neural networks subject to hybrid attacks,in which hybrid attacks are the combinations of denial-of-service attacks and deception attacks,and they are described by two groups of independent Bernoulli distributions.On this foundation,via the Lyapunov stability theory and linear matrix inequality technology,the H_(∞)/passive-based performance criteria for semi-Markov jump neural networks are obtained.Additionally,an activation function division approach for neural networks is adopted to further reduce the conservatism of the criteria.Finally,a simulation example is provided to verify the validity and feasibility of the proposed method. 展开更多
关键词 Activation function division approach deception attacks denial-of-service attacks H_(∞)/passive synchronization semi-Markov jump neural networks
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