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THE normalITY OF CAYLEY GRAPHS OF SIMPLE GROUP A_5 WITH SMALL VALENCIES

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Systems science and Mathematical sciences 2000年第1期13卷 42-47页

作者： GUO Da chang (Department of Mathematics and Physics, guangdong university of Technology, guangzhou 510643, china) 广东工业大学数理系广东广州 510643

***1,theCayley(di)graphX^Cay(G,S)ofGwithrespecttoSisdefinedasthedirectedgraphwithvertexsetV(X)=GandedgesetE(X)={(g,sg)IgEG,s6S}.IfS=S--',thentheadjacencyrelationissymmet... 详细信息

***1,theCayley(di)graphX^Cay(G,S)ofGwithrespecttoSisdefinedasthedirectedgraphwithvertexsetV(X)=GandedgesetE(X)={(g,sg)IgEG,s6S}.IfS=S--',thentheadjacencyrelationissymmet...

关键词： . Cayley graph normal Cayley (di)graph.

The Segmentation of Liver and Vessels in CT Images using 3D Hierarchical Seeded Region Growing

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The Segmentation of Liver and Vessels in CT Images using 3D ...

2011 IEEE International Conference on Computer science and Automation Engineering(CSAE 2011)

作者： HUANG Zhan-Peng YI Fa-Ling JIANG Shi-Zhong Zhao Jie college of Medical Information Engineering guangdong Pharmaceutical university guangzhou 510006 china BAO Su-Su college of Computer south china normal university guangzhou 510631 china

Seeded region growing （SRG） is becoming a popular method because of its ability to involve high-level knowledge of anatomical structures in seed selection *** medical images are mostly fuzzy,defining the homogeneity criterion depending on the image properties is a challenging *** developed a novel 3D hierarchical SRG algorithm which learns its homogeneity criterion *** our approach,several seed points are selected *** the CT images are divided into sub-blocks with a defined size and the homogeneity criterion is estimated automatically through investigation of the statistical characteristics in the local regions of the seed *** order to utilize the texture of the liver image and reduce computation cost,the hierarchical sub-blocks merging techniques are used during the region growing *** results show the proposed method can efficiently segment the live region and vessels from serial abdominal CT images with little user interaction.

关键词： 3D Seeded Region Growing Algorithm Hierarchy technique Competitive Strategy Medical image

LOCAL AND GLOBAL HOPF BIFURCATIONS IN A DELAYED HUMAN RESPIRATORY SYSTEM

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Annals of Differential Equations 2006年第3期22卷 316-322页

作者： Li Zunxian Li Xiangao Zhuang Kejun (School of Math. sciences, south china normal university, guangzhou 510631)

This paper considers a delayed human respiratory model. Firstly, the stability of the equilibrium of the model is investigated and the occurrence of a sequence of Hopf bifurcations of the model is proved. Secondly, the explicit algorithms which determine the direction of the Hopf bifurcations and the stability of the bifurcating periodic solutions are derived by applying the normal form method and the center manifold theory. Finally, the existence of the global periodic solutions is showed under some assumptions on the model.

关键词： respiratory system Hopf bifurcation stability

AN EFFICIENT MOVING MESH METHOD FOR A MODEL OF TURBULENT FLOW IN CIRCULAR TUBES

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Journal of Computational Mathematics 2009年第Z1期 388-399页

作者： Yin Yang Hunan Key Laboratory for Computation and Simulation in science and Engineering,School of Mathematics and Computational science,Xiangtan university,Xiangtan 411105,china Yanping Chen School of Mathematical sciences,south china normal university,guangzhou,china Yunqing Huang Hunan Key Laboratory for Computation and Simulation in science and Engineering,School of Mathematics and Computational science,Xiangtan university,Xiangtan 411105,china

This paper presents an efficient moving mesh method to solve a nonlinear singularproblem with an optimal control constrained *** physical problem is governedby a new model of turbulent flow in circular tubes proposed by Luo et *** Prandtl’smixing-length *** algorithm is formed by an outer iterative algorithm for handlingthe optimal control condition and an inner adaptive mesh redistribution algorithm forsolving the singular governing *** discretize the nonlinear problem by using aupwinding approach,and the resulting nonlinear equations are solved by using the Newton-Raphson *** mesh is generated and the grid points are moved by using thearc-length equidistribution *** numerical results demonstrate that proposedalgorithm is effective in capturing the boundary layers associated with the turbulent model.

关键词： Eddy viscosity Turbulent pipe flow Boundary layer Optimal control Moving mesh

Spatial Econometric Analysis of Agriculture Production of china

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Spatial Econometric Analysis of Agriculture Production of Ch...

工程和商业管理国际学术会议

作者： LONG Huidian 1 2 YAN Guangle 2 ZHANG Haiyan 3 1 Business School university of Shanghai for science and Technology .china 2 Information School guangdong university of Foreign Studies guangzhou china 3 Tianhe college of guangdong Polytechnic normal university guangzhou china

Agriculture is the base of economy in china. Many scholars are researching the output level of agriculture production. The paper introduced research status of main body of time series analysis which has few of cross-section analysis and especially lacks spatial econometrics analysis. This paper uses spatial econometrics model and analyzes the output level of agriculture production and its influencing factors from 2005 to 2007 based on spatial samples of 30 provinces in *** results show that there is spatial interdependence of the output level .The output of agriculture is influenced collectively by its neighborhood and the output level is also influenced markedly by the input of finance and stock of capital in agriculture.

关键词： stock of capital input of finance output of agriculture spatial econometrics model

System for the Whole Nation: The Explanation for One Culture

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System for the Whole Nation: The Explanation for One Culture

第4届全国青年体育科学学术会议

作者： Shi-long, Wang-Guirong south china normal university Physical science college, guangzhou 510631 Inner Mongolia Industry university Physical Education Department, Huhhot

＜正＞To have the explanation of one culture will make us clear of the cultural meaning behind the system of athletic sports and will guide the consummating direction. 1. It is the necessary trend of china traditional culture from nationality group awareness to gold medal awareness. The nationality group spirits is the long-lasting cultural spirits and it helps to establish the group nationality of china. It also became the rooted cultural value. In reality, collectivism became the ideal spiritual faith of us. After experiencing the humiliation in last eras, china kept on pursuing the peace and glory with other countries. The athletic game field in the world became the culture body of great power dream. The athletes deducted the nationality group awareness and changed to gold medal awareness. *** the system for the whole country needs to get the guidance from the whole physical humanistic view. It became a cultural value direction when the athletic sports combined with national cultural psychology. After the 50s, Chinese social and political conditions made the production of the athletic sports system. The communion of different sports culture is the fundamental driving power of pushing the world sports culture. The world sports cultures mainly in the western athletic sports need to get the conformity again. The recreational sports are the clear trends of future development and Chinese sports culture will contribute a lot. The core of physical culture is human-center and embodied in three lays: generic human, group human and individual human. What we pursue is "fully developed human", which means the pursuing of unifying these three lays. In the past, the system emphasized the group human beings. Consummating the system should establish the humanistic physical view that pays attention to the three aspects. Try to change the functions whenever necessary.

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流式细胞术和显微观察对罗氏沼虾血细胞的比较研究

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水生态学杂志 2009年第5期2卷 90-94页

作者：冼健安王安利华南师范大学生命科学学院广东省高等学校生态与环境科学重点实验室广东广州510631

应用流式细胞术和显微观察对罗氏沼虾(Macrobrachium rosenbergii)血细胞的分类分群和各类细胞组成比例进行研究,比较2种方法的优缺点。应用显微观察,根据细胞颗粒的有无和大小以及细胞染色情况,可把罗氏沼虾血细胞分为透明细胞、小颗... 详细信息

应用流式细胞术和显微观察对罗氏沼虾(Macrobrachium rosenbergii)血细胞的分类分群和各类细胞组成比例进行研究,比较2种方法的优缺点。应用显微观察,根据细胞颗粒的有无和大小以及细胞染色情况,可把罗氏沼虾血细胞分为透明细胞、小颗粒细胞和大颗粒细胞。根据其血细胞的前向角散射光(FSC)和侧向角散射光(SSC)特性的不同,也将血细胞分为3个亚群:透明细胞、小颗粒细胞和大颗粒细胞。检测各种细胞所占的比例,2种方法测得比例均为:小颗粒细胞>大颗粒细胞>透明细胞;2方法的结果存在显著差异(P2种方法互补不足,可更快速、准确、全面地进行细胞基础特征的研究。

关键词：流式细胞术血细胞罗氏沼虾

心理感受性与运动技能关系研究的进展及其应用

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体育学刊 2001年第3期8卷 13-14页

作者：谢红光李薇广州体育科学研究所广东广州510620 华南师范大学体育科学学院广东广州510631

对心理感受性与运动技能的关系进行了介绍 ,对心理感受性的研究进展作了分析和评价 ,侧重介绍了感受性在定量负荷训练、对篮球运动员心理潜质的诊断和训练、赛前适应训练等的应用 ,并提出注重结合个体特质 ,对具体感受性指标敏感性的测定。

关键词：心理感受性运动技能训练选材

Regulation of ABA level and water-stress tolerance of Arabidopsis by ectopic expression of a stress-inducible gene for 9-cis-epoxycarotenoid dioxygenase in peanut plants

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Regulation of ABA level and water-stress tolerance of Arabid...

全国“植物生物技术及其产业化”研讨会

作者： Xiao-Rong Wan Ling Li (1 college of Life sciences,Zhongkai university of Agriculture and Technolog,guangzhou 510225 2 college of Life sciences,south china normal university,guangzhou 510631)

＜正＞Abscisic acid （ABA） is necessary for seed maturation and dormancy and adaptation of plants to various environmental stresses （Zeevaart and Creelman, 1988）. The oxidative cleavage of cis-epoxycarotenoids catalyzed by 9-cis-epoxycarotenoid dioxygenase （NCED） is considered to be the rate-limiting step in ABA biosynthesis in higher *** is one of the major abiotic

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