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In terms of subshifts of finite type determined by an irreducible marrix, affine maps of compacted connected metric abelian group and continuous maps of tree, the two concepts of topologically ergodic map and topologically transitive map are identical.

指出对于由不可约方阵所决定的符号空间有限型子转移而言,或紧致交换群的仿射变换及树上连续自映射而言,拓遍历与拓可迁这两个概念是一致的。

Three intersection functions,such as adjacent node set,node-arc angle set and connected node set,were presented,and based on the shortest path method proposed by Dijkstra,a road guide sign model was built by using the intersection functions.

结合路网的拓结构,定义了用于确定指路标志的状态函数集,给出了3个描述路网拓特征的交叉口函数:邻近结点集、结点-弧段夹角集和连通结点集,基于Dijkstra最短路径的思想,运用交叉口函数建立了城镇指路标志的标识模型:以待标识城镇为中心,在城镇的影响区域内,通过向外搜索交叉口邻近结点集来确定指路标志的设置,并使每个结点上标识的路径都是最优的。

Based on characteristics and connectivity of the groups in molecules,the group contribution method and topological method was combined together,a new method was developed which can be used to calculate the density of alkyne from molecular structure.

根据分子中基团的特性和连接性,将基团贡献法和拓方法结合在一起,发展了一种计算炔烃密度的新方法———基团键贡献法,该方法具有基团贡献法适用范围广和拓方法计算结果准确可靠的特点。

The research results suggest that:(1)the factors influence the control of IOR including economic,social and technological factors;(2)the application of interorganizational systems should focus on both technological and non-technological factors;(3)the stronger dependency between organizations, the more effective of the IOS reducing the coordination costs;(4)usually the investment of firms in interorganizational relationship is reciprocal;(5)the appicaton of IT changes the dependency between organizations, which should modify the coordination mechanism, resulting in the change of IOR;(6)the coordination cost affects the effectiveness of coordination among firms;(7) maintaining the interorganizational relationship influences the firms'' network life cycle and matureness;(8)both coordination cost and network size of firms affect sharing mechanisn of the costs and benefits for creating and maintaining interoganizational relationship;(9) the influence of coordination costs to the allocation of super profits deriving from interorganizational relationship is depent on the network topology;(10) the core firm in a network prefer the symmetric network.

我们的研究成果表明:(1)影响管理与控制IOR治理结构的因素有经济因素、社会学因素以及技术因素;(2)在应用组织际信息系统时,要同时关注技术和非技术的影响因素;(3)当组织之间存在较强的依赖关系时,组织际信息系统的应用能够有效减少组织之间的协调成本;当组织之间的依赖关系较弱时,组织际信息系统的应用会加深组织之间被对方侵占的风险,无法显著地减少组织际协调成本;(4)在通常情况下,参与组织际关系的成员的投资是互补的;(5)IT的应用会改变组织间的相互依赖性,组织应调整协调机制,而协调机制的变化会改变IOR;(6)协调成本的大小对协调有效性有着很大影响;(7)组织际关系的维护影响组织网络的生命周期和成熟度;(8)影响组织际关系建立和维护的成本分担和利益共享方案的因素不仅仅跟协调成本有关,而且还与网络规模有关;(9)在对称网络拓结构与非对称网络拓结构下,协调成本对超额回报分配的影响是不同的;(10)核心企业倾向于选择非对称的网络结构。

The interconnection equipment electric cable is longest may reach 5 m, reaches 5 level of analysis situs connections through the USB concentrator by the chrysanthemum chain analysis situs form realization, but outside meets 127 USB equipment.

连接设备的电缆最长可达5 m,通过USB集线器以菊花链拓形式实现多达5级的拓连接,可外接127个USB设备。

The interconnection equipment electric cable is longest may reach 5 m reaches 5 level of analysis situs connections through the USB concentrator by the chrysanthemum chain analysis situs form realization but outside meets 127 USB equipment.

该文依据的是USB1.1协议规范,总线一共4根:5V电源线、地线及两根以差分形式驱动的数据线D+、D-。连接设备的电缆最长可达5 m,通过USB集线器以菊花链拓形式实现多达5级的拓连接,可外接127个USB设备。

With respect to syntax, the roles of tagmeme in the structure of word and sentence and Chomsky's Generative-Transformational Grammar are discussed. The spatial relation theory and existing research achievements are investigated. Having noticed the shortage of the capability of topological and metrical relation in the description of spatial information structure, the author proposes Combinational Qualitative Geometry based on the two invariables under ordinary transformations, distance ratio and direction difference, the CQG-based spatial relation system between topological and metrical constraint is thus constructed, on which several spatial relations such as parallel, perpendicularity, co-linearity, sequence and direct neighborhood are derived. Based on extended theory of spatial relation, the language anamorphosis is analyzed from the aspects of phonetics, semantics and syntax. The mere geometric and formalized spatial relation is then integrated with concrete geographic ontology to accommodate richer and indicative spatial configuration of spatial information in the different geographic context. Finally a syntax framework for spatial information is put forward.

在语法结构方面,首先阐述了法位和法素在语法结构词法和句法中的地位和作用,以及Chomsky生成转换语法的核心内容;详细介绍了地理信息系统空间关系理论及现有的研究成果;在分析现有的拓关系和量度关系对空间信息结构描述能力不足的基础上,提出了基于长度比和角度差两个不变量的组合定性几何,以此建立了介于拓及量度约束之间的组合定性关系体系,并以此为基础派生出平行、垂直、共线、次序、直接邻近等空间关系描述;本文基于扩展的空间关系理论,详细讨论了空间关系在语音、语法和语义三个方面的语言变体,将纯几何和纯形式化的空间关系与具体的地理本体结合起来,可以获得更为丰富的、更能反映空间关系在不同语言上下文中具体体现的组合关系;最后给出了一个空间信息的语法结构的基本框架。

The Arbitrary Lagrangian Eulerian finite element method with ANSYS/CFD was used to solve the Navier-Stokes equations numerically.

利用任意拉格朗日欧拉有限元方法求解出N-S方程的数值解,证明简单翼布局所提供的升力足以克服微翼飞行器本身的重力使其飞行。

In this paper, a new kind of T2 axiom called strong T2 separation in topological systems is introduced. Characterizations of T2 separation by net convergences and by filter convergences are given.

提出拓系统的一种新的T2分离性-强T2分离性,给出了T2拓系统的网式收敛刻画和强T2拓系统的滤子式收敛刻画。

Results showed that long _ cycle leading to atrial fibrillation and flutter were mostly compensating period due to atrial premature beat or obviously sinus bradycardia.

结果显示:心房颤动或心房动发生前的长周期多见于房性期前收缩后代偿间歇及明显窦性心动过缓等心律失常;长短周期现象对心房颤动、心房动的启动作用可经心脏的程序刺激诱发和复制;6例患者经DDD起搏治疗,阵发性心房颤动及心房动的发生率明显下降,部分病例还需服用抗心律失常药物。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。