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Interannual variability of Antarctic Oscillation and its influence on East Asian climate during boreal winter and spring

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Science China Earth Sciences 2006年第5期49卷 554-560页

作者： FAN Ke1,2.3 & WANG Huijun2.1. Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 10002., China 2. department of Atmospheric Science, yunnan university, {2. 650091. China 3. Graduate university of the Chinese Academy of Sciences, Beijing 100049, China 1. Nansen-Zhu International Research Center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China 2. department of Atmospheric Science Yunnan University Kunming 650091 China 3. Graduate university of the Chinese Academy of Sciences Beijing 100049 China

The interannual variability of Antarctic Oscillation (AAO) and its influence on East Asian climate during both boreal winter and spring are addressed. The results show that the positive AAO anomaly decreases the cold activity over East Asia during both boreal winter and spring. AAO-related barotropic meridional teleconnection from Antarctic to Arctic is found through analysis of mean me- ridional circulations. This meridional teleconnection is remarkable over Eurasia during boreal winter and over the Pacific Ocean during boreal spring. The results also show that zonal mean zonal wind at high latitudes in Southern Hemisphere has well positive correlation with that of Eurasia during boreal winter and has negative correlation with Pacific North American teleconnection (PNA) during boreal spring, which again display the meridional teleconnection. Thus, local meridional teleconnection is a possible linkage for interaction of circulations at mid-high latitudes between both hemispheres.

关键词： Antarctic Oscillation, Eurasian west wind, meridional teleconnection, mean meridional circulation.

The Nature of Bonding in PtN

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Chinese Chemical Letters 1998年第7期9卷 687-690页

作者： Xiao Guang XIE Xian Jun BI Huai CAO Shu Shan DAI (Modem Biological Center, yunnan university, kunming {2.(department of Chemistry, yunnan Normal university, kunming 650092.(department of Chemistry, yunnan university, kunming {2. yunnan Univ Modern Biol Ctr Kunming 650091 Peoples R China yunnan Normal Univ Dept Chem Kunming 650092 Peoples R China yunnan Univ Dept Chem Kunming 650091 Peoples R China

The nature of bonding in the title compound has been studed by using CASSCF techniques. The ground state of PtN is found to be (2.Pi state arising primarily from: 1 sigma(2.2.sigma(2.1 pi(4)1 delta(4)3 sigma(2.2.pi(1) configuration, which forms triple bond between Pt and N atoms tone sigma, two pi). The lowest quartet state is (4)Sigma(-) State which has the configuration: ...1 sigma(2.2.sigma(2.1 pi(4)1 delta(4)3 sigma(1)2.pi(2. and lies higher than the ground state by 0.43eV.

关键词： PtN nature of bonding molcular constants CASSCF

Regularity of the Attractor for the Dissipative Hamiltonian Amplitude Equation Governing Modulated Wave Instabilities

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Acta Mathematicae Applicatae Sinica 2002年第2期18卷 263-272页

作者： Zheng-de Daidepartment of mathematics,{2., kunming 650091. China department of mathematics Yunnan Normal University Kunming China

In the present paper, the existence of global attractor for dissipative Hamiltonian amplitude equation governing the modulated wave instabilities in E0 is considered. By a decomposition of solution operator, it is sho... 详细信息

关键词： Regularity of Global attractor Hamiltonian amplitude equation

Characteristic analysis for a polynomial-like iterative equation

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Chinese Science Bulletin 1998年第3期43卷 192-196页

作者： Janusz Matkowski 1 and ZHANG Weinian 2.1. department of mathematics, Technical {2., 43_300 Bielsko_Biala, Poland 2. department of mathematics, Sichuan Union {2., Chengdu 610064, China department of mathematics Technical University Bielsko-Biala Poland department of mathematics Sichuan Union University Chengdu China

In the light of Euler’s idea for differential equations,a polynomial_like n _order iterative equation is discussed through analyzing its characteristic polynomial. An unproved result is verified rigorously for the fi... 详细信息

关键词： iterative dynamics functional equation characteristic.

K-uniformly rotund spaces and k-uniformly smooth spaces

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Chinese Science Bulletin 1998年第2期43卷 92-95页

作者： Suyalatu 1 and WU Congxin 2.1. department of mathematics,Inner Mongolia Normal {2., Huhhot 01002., China 2. department of mathematics, Harbin Institute of Technology, Harbin 150006, China department of mathematics Inner Mongolia Normal University Huhhot China department of mathematics Harbin Institute of Technology Harbin China

The conception of k_uniform smoothness (KUS) is introduced. It is the extension of the conception of uniform smoothness. It is proved that the k_uniform smoothness and Sullivan’s K_uniform rotundity (KUR) are the daul notions. X+* is a KUR space if and only if X is a KUS space, X+* is a KUS space if and only if X is a KUR space. If X is a KUS space, then X is a (K+1)US space. It is also proved that the KUS space includes the Nan’s k_strongly smooth space.

关键词： K_uniform smoothness K_uniform convexity.

Uniqueness results for monopolar fluids

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Communications in Nonlinear Science and Numerical Simulation 2000年第1期5卷 21-23页

作者： Guoguang LIN department of mathematics,{2., kunming 650091. China, e-mail: gglin@ynu. edu. cn department of mathematics Yunnan University Kunming 650091 China

We prove a unique property for weak solutions of monopolar fluid equations.

关键词： monopolar fluid equations non-Newtonian fluids uniqueness of weak solutions

The Nature of Bonding in IrC

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Chinese Chemical Letters 1998年第12期9卷 0-0,0-0页

作者： Xiao Guang XIE Huai CAO (Modem Biological Center, yunnan university, kunming {2.Xian Jun BI (department of Chemistry, yunnan Normal university, kunming 650092.Shu Shan Dai (department of Chemistry, yunnan university, Kunndng {2. yunnan Univ Modern Biol Ctr Kunming 650091 Peoples R China yunnan Normal Univ Dept Chem Kunming 650092 Peoples R China yunnan Univ Dept Chem Kunming 650091 Peoples R China

The nature of bonding in the title compound has been stUdied by using CASSCF andFOCI techniques. The ground state of IrC has been found to be 2. arising primarilyfrom:.. 1σ2.2.2.1π4 1δ3 3σ2.configuration, which forms a triple bond between Ir and C atoms (one σ;two π). The lowest quartet state is 4Φ state which has the configuration:... 1σ2.2.2.1π4 1δ3 2.1 3σ2.andlies higher than the ground state by 1 .2.eV. The molecular constants of the ground state calculatedat CASSCF level by using Morse's mode are: Re=1.6904A, De=4.86eV, We=1139cm-1, andB0=0.52.9cm-1 comparable with the spectrum values (Re=1 .6858A, De=6.44 eV, We=1051cm-1and B0=0.52.1 cm-1).

关键词： Nature of bonding IrC molecular constants CASSCF

Minimal symmetric submanifolds in compact Riemannian symmetric spaces

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Chinese Science Bulletin 1998年第21期43卷 1786-1789页

作者： LIANG Ke 1 and JIN Quanqin 1,2.1. department of mathematics, Nankai {2., Tianjin 300071, China 2. department of mathematics, Hebei {2., Baoding 071002. China department of mathematics Nankai University Tianjin China department of mathematics Hebei University Baoding China

A necessary and sufficient condition for a symmetric submanifold to be minimal in its ambient compact Riemannian symmetric space is given. By this condition a complete classification of non- minimal symmetric submanif... 详细信息

关键词： symmetric space symmetric submanifold mean curvature vector.

Bifurcations of travelling wave solutions for two generalized Boussinesq systems

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Science China mathematics 2008年第9期51卷 1577-1592页

作者： LI JiBin1,2.1 department of mathematics, Zhejiang Normal {2., Jinhua 32.004, China 2.department of mathematics, kunming {2. of Science and Technology, kunming 650093, China department of mathematics Zhejiang Normal University Jinhua 321004 China department of mathematics Kunming University of Science and Technology Kunming 650093 China

Using the methods of dynamical systems for two generalized Boussinesq systems, the existence of all possible solitary wave solutions and many uncountably infinite periodic wave solutions is obtained. Exact explicit parametric representations of the travelling solutions are given. To guarantee the existence of the above solutions, all parameter conditions are determined.

关键词： nonlinear wave bifurcation solitary wave exact explicit solution generalized Boussinesq system 34C37 34C2. 74J30 58Z05