扑

This paper mainly discusses the design and implementation of the common network management platform and the algorithm of topology discovery for IP network.

本文主要论述了通用分布式网管平台的设计与实现，以及IP网络拓扑管理中的拓扑自动发现算法。

It is proved that closed pretopologies and pseudo-closure operator s on a complete lattice are corresponding one by one.

引入了预拓扑分子格的概念，并证明了完备格上的闭预拓扑和伪闭包算子是一一对应的。

It is worthy of mentioning that complex 21 is the first (3, 4)-connected self-penetrating 3D polymer; complex 22 is the first two-fold interpenetrating trinodal 4-connected network with (64·82)(63·83)2(65·8) topology; complexes 23-27 all show three-fold interpenetrating networks, containing the rare (3, 4)-connected (63)2(64·8·10)3 net and the common diamond nets as well as α-Po nets.

值得注意的是，配合物21是第一个(3， 4)-连接的自穿插网格；配合物22是第一个二重穿插的三节点4-连接的(64.82)(63.83)2(65.8)拓扑网格；配合物23-27呈现三重穿插的网络结构，包括少见的(3， 4)-连接(63)2(64.8.10)3拓扑网格以及常见的金刚石网格和α-Po立方格子。

In application point of view, is a bridge between CAD and CAPP, furthermore, it is also a good connecter of geometry topology information of CAD and special engineering information to improve the utility of CAD, CAPP and CAM and to make new sense for parts CAD module, from combination of geometry topology information to special engineering information.

特征不仅仅是连接CAD与CAPP、CAM等领域的一个桥梁，更重要的是它可将CAD中的几何拓扑信息与具体的工程信息紧密地连接起来，提高了CAD、CAPP、CAM等的实际应用成熟度，使得产品模型由原始无工程意义的几何拓扑信息组合变为具有工程意义的特征信息组合。

In application point of view, is a bridge between CAD and CAPP, furthermore, it is also a good connecter of geometry topology information of CAD and special engineering information to improve the utility of CAD, CAPP and CAM and to make new sense for part's CAD module, from combination of geometry topology information to special engineering information.

特征不仅仅是连接CAD与CAPP、CAM等领域的一个桥梁，更重要的是它可将CAD中的几何拓扑信息与具体的工程信息紧密地连接起来，提高了CAD、CAPP、CAM等的实际应用成熟度，使得产品模型由原始无工程意义的几何拓扑信息组合变为具有工程意义的特征信息组合。

The associated topology is the constructible topology on X.

相应的拓扑是X之上的可构造拓扑。

In this paper we investigate the dynamical properties of continuous mapson a class of hereditarily decomposable chainable continua and the structure ofthe inverse limit space using a piecewise monotone continuous map with zerotopological entropy on a finite graph as a single bonding map.

本文研究了一类遗传可分可链连续统上连续自映射的动力性质并且对有限图上逐段单调且具有零拓扑熵的连续自映射的逆极限空间的拓扑结构进行了较为细致的刻画。

Optimization solution algorithm is the most important in topology optimization.Algorithms fit for discrete structure and continuum structure are all investigated. Thecharacteristic and different using limit of both optimization criteria method andmathematics programming method are all analyzed in this paper. OC algorithm and theseries MMA algorithm based on SIMP approach are deducedand used for the topology optimization problem of continuum structure.

优化求解算法是拓扑优化问题求解的核心和关键，本文系统分析了适用于离散结构和连续体结构优化的优化求解算法，重点讨论了 OC 算法和 MP 算法，分析比较了不同算法的特点和适用范围，推导了基于 SIMP 理论的优化准则法和 MMA 系列算法，并将MMA 系列算法应用于连续体结构拓扑优化问题的求解。

Thecharacteristic and different using limit of both optimization criteria method andmathematics programming method are all analyzed in this paper. OC algorithm and theseries MMA algorithm based on SIMP approach are deducedand used for the topology optimization problem of continuum structure. MMA algorithm hasa bad convergence but it has a high computational efficiency, while GCMMA is excellent onconvergence and stability with bad calculation efficiency.

优化求解算法是拓扑优化问题求解的核心和关键，本文系统分析了适用于离散结构和连续体结构优化的优化求解算法，重点讨论了 OC 算法和 MP 算法，分析比较了不同算法的特点和适用范围，推导了基于 SIMP 理论的优化准则法和 MMA 系列算法，并将MMA 系列算法应用于连续体结构拓扑优化问题的求解。

For detecting the vibration frequency the dynamic systems, and using topology contravariant functor the unknown space was mapped to known space,the vibration frequency of unknown space will be investigated by the contravariant functor.

为了分析动力系统振动频率的瞬变性，采用拓扑反变的理论把未知的动力系统空间映射到已知的空间中，通过拓扑反变算子研究未知的空间频率的瞬变性。

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。