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Global　Exponential　Stability　of　Variable　Delay　and　Time－varying　Measure　Differential　Systems　with　Impulse　Effect

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Systems Science and Systems Engineering 1996年第3期6卷 266-272页

作者： GUAN Zhihong(department of Basic Science, Jianghan Petroleum institute Jingsha, hubei, 43.102,{3.)

This work concerns the stability properties of impulsive solution for a class of variable delay and time-varying measure differential systems. By means of the techniques of constructing broken line function to overcome the difficulties in employing comparison principle and Lyapunov function with discontinuous derivative, some criteria of global exponential asymptotic stability for the system are established. An example is given to illustrate the applicability of results obtained.

关键词： distributional derivative measure differential systems with variable delays impulsive perturbation global exponential asymptotic stability

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土家族棉花球的开发试验

体育学刊 2003年第5期10卷 57-59页

作者：姚正国湖北民族学院体育系湖北恩施445000

通过挖掘、整理和创新土家族棉花球运动,开发了民族体育资源。主要结论:棉花球运动是一项以扣篮为中心的民族特色体育项目,具有趣味性高、观赏性强,易普及、易推广的特点;它对提高青少年力量、速度、耐力、灵敏等素质具有较高的锻炼价值。

关键词：土家族棉花球体育资源民族体育

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手指操对排球传球技术的影响

体育学刊 2005年第1期12卷 125-127页

作者：王中南湖北民族学院体育系湖北恩施445000

结合排球传球基本技术对手指和手腕的要求 ,创编了手指操 ,并通过 4次教学实验经对照比较发现坚持手指操练习能发展手指灵活性 ,增强手指、手腕力量 ,对排球传球技术的掌握有很好的促进作用。94 2 %的受试者认同了这种教学实验。

关键词：手指操排球运动传球技术教学实验

Feller property and exponential ergodicity of diffusion processes with state-dependent switching

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Science china mathematics 2008年第3期51卷 329-342页

作者： XI FuBao department of mathematics, Beijing institute of Technology, Beijing 100081,{3. 1. department of mathematics Beijing Institute of Technology Beijing 100081 China

In this paper we consider the Feller property and the exponential ergodicity for general diffusion processes with state-dependent switching. We prove their Feller continuity by means of intro- ducing some auxiliary processes and by making use of the Radon-Nikodym derivatives. Furthermore, we also prove their strong Feller continuity and their exponential ergodicity under some reasonable conditions.

关键词： Feller continuity Radon-Nikodym derivative strong Feller continuity exponential ergodicity state-dependent switching 60J60 3.D25

Normality concerning shared values

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Science china mathematics 2009年第8期52卷 1717-1722页

作者： CHANG JianMing department of mathematics, Changshu institute of Technology, Changshu 215500,{3. department of mathematics Changshu Institute of Technology Changshu 215500 China

Let $ \mathcal{F} $ be a family of meromorphic functions in a plane domain D, and a and b be finite non-zero complex values such that $ a/b \notin \mathbb{N}\backslash \{ 1\} $ . If for $ f \in \mathcal{F}, f(z) = a \Rightarrow f'(z) = a $ and $ f'(z) = b \Rightarrow f''(z) = b $ , then $ \mathcal{F} $ is normal. We also construct a non-normal family $ \mathcal{F} $ of meromorphic functions in the unit disk Δ={|z|<1} such that for every $ f \in \mathcal{F}, f(z) = m + 1 \Leftrightarrow f'(z) = m + 1 $ and $ f'(z) = 1 \Leftrightarrow f''(z) = 1 $ in Δ, where m is a given positive integer. This answers Problem 5.1 in the works of Gu, Pang and Fang.

关键词： meromorphic function holomorphic functions normal family 3.D45

Direct CP violation in hadronic B decays

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Science china(Physics,Mechanics & Astronomy) 2006年第3期49卷 357-366页

作者： HONG Bihai1,2 & Lü Caidian3.1. department of Physics, Lishui University, Lishui 3.3.00,china 2. department of Physics, Shanghai Jiaotong University, Shanghai 20003.,{3. 3. institute of High Energy Physics, Beijing 100049,china department of Physics Lishui University Lishui 323000 China department of Physics Shanghai Jiaotong University Shanghai 200030 China institute of High Energy Physics Beijing 100049 China

There are different approaches for the hadronic B decay calculations, recently. In this paper, we upgrade three of them, namely factorization, QCD factorization and the perturbative QCD approach based on kT factorization, using new parameters and full wave functions. Although they get similar results for many of the branching ratios, the direct CP asymmetries predicted by them are different, which can be tested by recent experimental measurements of B factories.

关键词： CP violation hadronic B decay factorization.

基于小波包的电泳芯片非接触电导检测仿真研究(英文)

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系统仿真学报 2008年第19期20卷 5291-5296页

作者：廖红华于军华中科技大学电子科学与技术系微电子研究所武汉430074 湖北民族学院信息工程学院恩施445000

由于毛细管电泳芯片电容耦合非接触微电导检测器具有电极不接触溶液,不存在电极的钝化和玷污,不受电泳分离电压影响等优点,被认为是生化分析领域最具发展潜力的一种技术。根据四电极电容耦合非接触电导检测器检测特点,采用小波消噪方法... 详细信息

由于毛细管电泳芯片电容耦合非接触微电导检测器具有电极不接触溶液,不存在电极的钝化和玷污,不受电泳分离电压影响等优点,被认为是生化分析领域最具发展潜力的一种技术。根据四电极电容耦合非接触电导检测器检测特点,采用小波消噪方法对信号进行滤波处理;依据芯片检测池内仅背景缓冲液与加入待测物质后所呈现的电导率不同致使信号电压会突变的特性,采用小波奇异性检测确定信号变化发生和恢复时刻,从而实现毛细管电泳芯片系统的微电导检测。仿真结果表明,利用小波分析方法能有效地消除噪声,能有效地检测到微电导的波动,并能精确地确定电导率溶液波动的发生、恢复时刻。

关键词：小波包电容耦合非接触电导检测信号消噪与奇异性检测芯片毛细管电泳

Lie bialgebras of generalized Witt type

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Science china mathematics 2006年第4期49卷 533-544页

作者： SONG Guang’ai & SU Yucai College of mathematics and Information Science, Shandong institute of Business and Technology, Yantai 264005, china {3. of mathematics, University of Science and Technology of china, Hefei 23.026, china {3. of mathematics, Shanghai Jiaotong University, Shanghai 200240, china College of mathematics Information Science Shandong Institute of Business Technology Yantai 264005 China department of mathematics University of Science Technology of china Hefei 230026 China department of mathematics Shanghai Jiaotong University Shanghai 200240 China

In this paper, all Lie bialgebra structures on the Lie algebras of generalized Witt type are considered. It is proved that, for any Lie algebra W of generalized Witt type, all Lie bialgebras on W are the coboundary triangular Lie bialgebras. As a by-product, it is also proved that the first cohomology group H1(W, W(?)W) is trivial.

关键词： Lie bialgebras, Yang-Baxter equation, Lie algebra of generalized Witt type.

Nontrivial homoclinic orbits for second-order singular and periodic Hamiltonian systems

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Chinese Science Bulletin 1999年第2期44卷 123-129页

作者： LI Chengyue , FAN Tianyou TONG MingshengResearch Center of Materials Science, Beijing institute of Technology, Beijing 100081, china department of {3., Central University for nationalities, Beijing 100081, china Computer Center, Beijing institute of Technology, Beijing 100081, china Research Center of Materials Science Beijing Institute of Technology Beijing China department of mathematics Central University for Nationalities Beijing China Computer Center Beijing Institute of Technology Beijing China

The existence of nontrivial homoclinic orbits of periodic Hamiltonian systems: is proved, where q=（q1,q2,’',qn）, n>2; V（t, q）:R1×Rn\{e}→R1 is a potential With a singularity, i.e. -V（t, q）→+∞, as q→e. The m... 详细信息

关键词： Hamiltonian systems strong force condition homoclinic orbit.