查询词典 topological dimension

Branch processes of the topological currents of these two kinds of topological excitations are also discussed.

我们对这两种激发相应拓扑流的分叉行为也进行了讨论。

A framework of temporal topological relationship representation based on point-set topology, which can be used to describe temporal topological relationships completely and uniquely, is presented.

同时，给出了时态拓扑关系完备且唯一的点集拓扑理论描述及其等价的逻辑谓词描述。

Based on the profound analysis for representation and reasoning of qualitative spatial relations, this paper proceeds with some originality innovation researches as follows:(1) Representation of spatial topological relations Based on the point-set topology and ontology, representation methods for spatial topological relations are researched.

在对定性空间关系表示与推理进行深入分析的基础上，本文进行了以下几方面的创新性研究：(1)空间拓扑关系表示以点集拓扑学和本体论为基础，研究了空间拓扑关系表示方法。

However, it can only implement the limited operation to the spatial objects, cannot carry on transformation, index, interlink age and excavation to the spatial data, and hard integrate other information with combining map variable to set up and analysis new variable. Meanwhile, relational model in the traditional DBMS and the object- oriented modeling do not completely suit the spatial application domain. The relational model can handle topological relation well, but shows inabilities to that complicated level crossing the spatial region. Object-oriented model using software method based on the principle of the customer defined data type supports the abstract data type, especially spatial abstract data type, and possesses polymorphism and inheritances, and it can deal with topological and the layer relation, but hardly processes important continuous phenomenon in space.

GIS是当今操作有关空间信息的成熟工具和技术，但其只能对空间对象进行有限的操作，不能对空间数据进行变换、索引、链接和挖掘，难以集成其他信息来构建和分析新变量；而传统数据库管理模型中的关系模型和面向对象建模也不完全适合空间应用这一领域，关系模型能够较好地处理拓扑关系，但对表示横跨空间区域的复杂层次却无能为力；面向对象模型的软件方法支持抽象数据类型，特别是空间抽象数据类型，具有继承性和多态性，能够处理拓扑和层次关系，但难以处理空间中重要的连续性现象。

Firstly, we establish a topological space associated to the derived category of a finite dimensional algebra with finite global dimension, which is a generalization of module variety and complex variety.

首先，我们在有限整体维数的代数的复形范畴上建立了复形拓扑空间。

Connected topological manifolds have a well-defined dimension; this is a theorem rather than anything a priori .

连接拓扑流形的具有明确的层面，这是一个定理，而不是任何先验。

Hereby, an improved 9I model and a dimension extended 9I model that could describe topological relation between complex spatial objects are given.

该定义不但适合于对空间实体进行任意剖分后形成的复形，而且适合于多个独立实体进行剖分后的组合复形。

Some evaluations and analysis of the motion planning performance based on topological dimension reduction method are discussed in detail.

并且对基于拓扑降维法的运动规划方法的性能特点给出一些评价和分析。

The functions of the motion planning of multi-joint robot based on topological dimension reducing method are proved by the performance of the system in experiments.

通过演示实验显示系统的功能，同时基于拓扑降维法的多关节机器人运动规划系统的性能也得到证实。

Firstly, on the base of graph theory, this dissertation gives the integrity knowledge expression and realization of product motion model, including the topological structure, motion dimension, drive information and physical characteristics.

给出了产品运动模型的完整信息表达及实现方法，在基于图论的机构拓扑结构表达基础上，建立机构运动尺度信息、驱动信息和运动单元的物理特性信息。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。