扑

The article makes a comparison among different types of bus, bus transmission signal and several familiar topologies of front-end converters and load-end converters. Finally, the half bridge converter with full-wave rectifier based on the high-frequency parallel-type AC bus bar is chosen as circuit structure and optimized. The working mode under different condition of the circuit is analyzed and a mathematical model is set up under continuous current mode. Simulation result is used as comparison.

通过对比不同类型的母线、母线传输信号以及各种常见的前端变换器拓扑和负载变换器拓扑，确定了基于并联型高频交流母线的半桥变换器加全波整流作为电路拓扑，并优化了电路的结构，分析了基于不同工作状态下的电路结构并建立电流连续模式的数学模型，并与软件仿真结果进行对比。

A new universal hybrid topology is brought forward. Two types multilevel inverter: equal DC voltage and DC voltage in geometric proportion is studied, besides this, simulation and experiments on SVPWM applied on cascaded H-bridge inverter is also studied.

提出了多电平逆变器的一种通用组合拓扑结构，针对这种拓扑结构重点，研究了直流侧电压相同及等比变化的两类级联拓扑以及级联H桥逆变器的矢量控制方法；并对级联H桥逆变器的矢量控制方法做了实验研究。

It is proved that each separated L-fuzzy locally convex topological vector space is linearly homeomorphic to a projective limit of a family of L-fuzzy normed spaces.

考察了格值模糊拓扑线性空间中归纳拓扑的若干性质，得到了由单一fuzzy线性序同态确定的归纳拓扑的远域基刻画。

This article discusses two types of clustered network topology: homogeny cluster head hierarchical topology and heterogeneous cluster head hierarchical topology.

本文讨论了两种拓扑结构：簇头异构的分簇式网络拓扑结构和簇头同构的分簇式网络拓扑结构。

This paper discusses the kernel of the system -- geometric model and includes the following:(1) The topological elements and the relation between them in geometric modeling system are explained and expressed by the theory of simplicial complex and CW-complex. In addition, the identification operators and homology theory in algebraic topology are used in our model. A hierarchical structure is built on the base of complex.

本文主要讨论这个系统的核心问题——几何建模问题，包括以下几个方面内容：(1)用单纯复形和CW复形的理论来解释和表达造型系统中的拓扑元素和拓扑元素之间的相关关系，并将代数拓扑中的粘合操作和同调论应用到模型中，建立以复形为基础的层次结构。

In condensed matter physics,we present an analyticaltopological current theory of point defects which unifies the topologicalquantization,homotopic classification and evolution of defects in oneframework.The number of possible branch lines is shown to be 2s once atmost at the bifurcation point of order parameter with degeneracy s and thetopological charge is conserved during bifurcation processes.

论文在凝聚态物理中给出了缺陷解析的拓扑流理论，将缺陷的拓扑量子化，同伦分类和演化统一在一个框架之内，并证明了在序参量退化度为s的分岔点，缺陷分岔数目最多为2的s次方，而且在分岔过程中拓扑荷是守恒的。

The model of weighted LRIV for topology error identification and the method of calculating the weighting factor are formed. It can make the weighted innovation value of the topology error branch show up and improve identifying ability for topology error in little load flow value branches.

形成加权新息识别拓扑错误的模型和权值计算方法，这种加权算法使得发生拓扑错误的支路相应的加权连支推算新息元素值加大，可以改善新息图法对于小功率支路上发生的拓扑错误的识别能力。

The logical topology design problem is formulated as an integer linear programming, whose optimization objective is to maximize the carried load of the logical topology.

光突发交换网络逻辑拓扑设计问题用一个线性规划模型描述，优化的目标是给定物理拓扑和源宿结点对间的业务量强度，使逻辑拓扑能够承载的业务量最大。

In the final , we studied some categorical properties of S - topology and Lawson topology .

在本文的最后介绍了有关S-拓扑，Scott拓扑和Lawson拓扑的一些范畴性质。

Based on the deep analysis of current P2P topology optimization solutions, a research idea is proposed in chapter 4, which takes trust relationship as an important metric for topology formation.

在深入分析现有对等网络拓扑优化方案的基础上，论文第四章提出以节点间的信任关系作为拓扑优化参数的研究思路，给出一种基于利润分享的自适应拓扑构建模型。

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。