拓扑结构

The two dimensions (2D, plane angle and polar angle) speech source DOA estimation algorithm had been proposed by combining this model and subspace methods.

对基于麦克风阵列的声源定位技术进行了研究，分析了基于麦克风阵列的远场信号模型，并结合子空间的方法推导出了声源二维DOA估计——2D-MUSIC算法，该算法适用于任意拓扑结构的麦克风阵列。

It adopts the voltage stability of distribution system as the object function, and uses the improved particle swarm optimization algorithm which can trace dynamically the environment's change to make the real-time dynamically reconfiguration of distribution system, and proposes a new coded form which divides the particle module according to the topological structure of distribution system, and then avoids the convergence precociously via the community characters of DPSO.

它以配电网络电压稳定为目标函数，采用可以动态跟踪环境变化的改进粒子群算法对现有典型的辐射状网络进行动态实时重构，并提出了一种新的编码形式，按照系统的拓扑结构划分粒子种类，从而利用改进粒子群算法的社区特性避免过早收敛。

Firstly, the element topological of primitive road layer-line was examined, and the road was cut off and the road layer non-crossing was created.

利用MapInfo MapX提供的OCX控件和MapX基本控件分析函数，可实现基于MapInfo的城市道路网网络拓扑结构自动生成。

The theory of topological perception argued that a primitive and general function of the visual system was the perception of global topological properties.

客体的形状、大小、明度、颜色、甚至拓扑结构等特征都与知觉组织有关，它们分别在知觉过程中起着不同的作用。

Block probability of field network is analyzed by means of finite source queuing model combined with monte-carlo simulation.According to this concept,the formula of network throughput and average delay are obtained,and then an investigation is given for the effect of user number and variance of topology structure as well as capacity of date link.

采用有限信源排队模型及蒙特卡洛仿真相结合的方法分析了地域网的阻塞概率，并据此给出了网络吞吐量及延时性能的解析表达式，最后分析比较了不同用户规模，不同拓扑结构及链路容量对网络性能的影响。

Comparing to the deterministic case, the base space of RDS is one probability space without any topology, which is one of the essential difficulties from the deterministic case to random case. We conquer the difficulty in this paper.

随机动力系统和确定性动力系统相比，它的底空间是一个没有任何拓扑结构的概率测度空间，这一点恰是从确定性系统到随机动力系统的一个本质困难之一，无论是对有限维的情形还是对无穷维的情形。

In this paper,the convergence rate of control meshes of Doo-Sabin surface was estimated.

基于这个性质Doo-Sabin曲面被广泛应用于具有任意拓扑结构的复杂形体的造型。

This dissertation focuses on the re-search of key technique of BitTorrent-like P2P file sharing systems, such as service capacity,incentive mechanism and overlay topology.

本文针对BitTorrent对等网文件共享系统的服务能力、激励机制、和覆盖网拓扑结构等P2P文件共享系统的关键问题展开了研究。

On basis of recursion theory of deep optimization traversal, stimulated the logical graph of water project by visual programming technology, and applied it to the west water source project of Weihe valley.

运用图论中节点连接表法描述各水源之间的逻辑联系关系，探索了分析流域拓扑结构的基本思想；以深度优先遍历的递归理论为基础，采用可视化编程技术，用计算机模拟了与研究对象有水力联系的水源工程逻辑结构图，并以渭河流域西部水源工程为研究对象进行了实现。

Complex networks theory is such a result that issue from the observation to relative simple topology structure of networks in different domains. And, recent several years, many research show that many complex systems possess the scale-free property, that is, the mass of nodes have only a few connections but abundant connections are possessed by minority nodes.

复杂网络理论是对不同领域的相对简单的网络拓扑结构进行观测的结果，而且，近几年的研究发现很多复杂系统均拥有无标度特性，即大部分节点只有少数几个连结，而某些节点却拥有与其他节点的大量连结。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。