This paper address the two basic problems mentioned above limit cycle extraction and vector field topology simplification .

本文主要论及上述 复杂 流场不稳定 结构检出中的两个基本问题：极限环的抽取和 向量场的 拓扑简化。

These data consist of scalar data ( temperature pressure etc ) and vector data ( velocity etc ) which are commonly defined on unstructured grids with complex topology .

这些数据类型比较复杂，既有温度、压力等标量数据，又有速度等 矢量数据，而且它们通常定义在非规则网格上的 拓扑 关系也很复杂。

Generic Stability of the Weakly Efficient Solutions in Vector Optimization Problems in Epigraph Topology Case

上图像 拓扑下 向量优化问题弱有效解的通有稳定性

This paper addresses the summary and comparison for the current development of planar vector field visualization and introduces the topology analysis which is new technique to globally visualize vector field and it can concentrate on important structures and interesting regions of vector field ;

介绍了 拓扑分析法，扑 结构分析法是一种从全局了解 矢量场 结构的新技术，它可以把注意力集中在发现和抽取矢量场中有特殊意义的结构上；

As levels organize the graphic information a new concept vector branch is provided and the steps of describing the original distribution network topology by vector branch are discussed . The topology analysis method based on vector branch is the innovation on theory in this paper .

在图形信息分层组织的基础上，本文独创性地提出了有向支路的概念，并详细地论述了用有 向 支路来建立配电网原始拓扑结构方法及在此基础上的配电网 拓扑分析方法。

According to Vector Control topology of Asynchronous Motor in this thesis paper I used one kind of feed back non-liner compensation method based on double closed loop control structure where outer loop control the target and inner one control the current .

按照异步电机 矢量控制 策略，本文运用了一种基于反馈非线性补偿的双闭环控制结构，既由目标控制外环和电流控制内环组成。

The security of vector geographical has been enhanced by the topology rules and at the same time the availability of vector geographic data is maintained in the local encryption and decryption process .

通过 拓扑约束规则，保证了矢量地理数据在局部加密、解密过程中的数据可用性，提高了 矢量地理数据的安全性。

It defines a branch vector to satisfy the topology configuration of distribution network . GSO is integrated into the update method of branch vector .

定义了符合配电网节点 拓扑结构的分支 向量，并将分支向量搜索的方法与群搜索优化算法结合。

When the contour data are compressed into vector analyzed by topology and given the elevation value the contour data has been structured reasonably according to the knowledge of topographic map .

在对等高线分版数据进行 矢量数据压缩以及 拓扑分析、高程赋值时，结合地形图知识设计了合理的数据结构。

Vector information includes geometry information attribute information and topology information . Geometry information is characterized based on spatial entities and topology information is characterized based on topology rules .

就 矢量信息而言，涉及几何信息、属性信息和 拓扑信息的描述，其中几何信息的描述基于空间实体，拓扑信息的描述基于拓扑规则。

To implement topology tracking methods vector filed topology analysis which can extract and classify topological features is needed .

为了实现 向量 场的拓扑跟踪首先必须进行 向量场的 拓扑分析，即找出 向量场的拓扑特征并加以分类。

Based upon all above-mentioned a mathematical representation for multi-material structures is proposed by means of vector level sets and the general structure topology optimization can be expressed by a constrained functional minimization problem of a set of level set functions .

在此基础上，提出了多材料设计对象的 向量水平集表示，将一般 拓扑优化问题描述为一组水平集函数的约束泛函极小化问题。

Specially analyses the Space Vector Modulation strategy . By given the equivalent AC / DC / AC topology of matrix converter modulates on part of equivalent VSI and VSR with space vector . On the base of this the indirect Space Vector Modulation is obtained .

通过将矩阵变换器等效成为交-直-交 拓扑 结构，分别对等效整流环节和逆变环节采用空间矢量调制，在此基础上得到矩阵变换器空间 矢量调制策略。

The algorithm took transmission time vector between nodes as input and a model was established by KLPP which can reflect partial information network topology structure .

该算法以节点间的传输时间 向量为输入，借助能够体现网络 拓扑结构局部信息的核局部保持映射进行建模。

Vector field topology simplification is another research topic brought into focus in recent years .

向量场的 拓扑简化是近年来 向量场可视化研究中的又一焦点问题。

This paper presents a method for converting raster data into vector data based upon topology and differential geometry .

本文以 拓扑学、微分几何学为理论基础，根据栅格数据栅格点的几何特征值，运用解析几何的方法，实施栅格数据到 矢量数据的转换。

SVG ( Scalable Vector Graphics ) is introduced to the network topology management module and a SVG based model of network topology display system is presented . The specific module design and realization method are given respectively with regard to data analysis and graphical display .

将SVG（可伸缩 矢量图形）引入网络 拓扑管理模块，给出了基于SVG的图形化网络拓扑显示系统模型，并分别就数据解析、图形显示给出了具体模块设计和实现方案。

Boolean vector is used to represent assembly priority order and automatic assembly task planning is realized by means of topology sorting algorithm of graph .

提出利用布尔 矢量表示装配优先顺序，利用图的 拓扑排序实现装配任务的自动规划。

Based on above the control strategy of the two-level inverter in permanent magnet synchronous motor is studied . Thirdly the principle of Space Vector Pulse Width Modulation ( SVPWM ) method for the three-level topology is researched detailedly .

再次，深入研究了应用于三电平逆变器的空间 矢量脉宽调制（SVPWM，Space VectorPulsewidthModulation）方法，在此基础上进行了三 电平逆变器对永磁同步电机控制的研究。

The topology vector of power electronic circuits can be used to fulfil topology identification and fault diagnosis .

电力电子电路的拓扑 向量可用来实现电路的 拓扑辨识和故障诊断。

Plane vector field visualization using topology analysis method

用 拓扑 结构分析法实现平面 向量场可视化

Generic stability of the weak efficient solutions of vector optimization problems with set-valued maps in the consistent Topology Case

一致 度量 拓扑下集值映射优化问题弱有效 解的通有稳定性