网络拓扑结构

The network analysis situs system selects the main line distributional structure, uses the mature industry control network CANBUS technology, its highest correspondence speed may reach 1 Mbps/40m, its farthest may reach 5Kbps/1Okm, may satisfy the common information and the pronunciation transmission speed and the distance request.

网络拓扑系统选用总线分布式结构，采用较成熟的工业控制网络CAN总线技术，其最高通信速率可达1 Mbps/40m，最远可达5Kbps/1Okm，可满足一般信息和语音传输速率和距离的要求。

The network analysis situs system selects the main line distributional structure, uses the mature industry control network CANBUS technology, its highest correspondence speed may reach 1 Mbps/40m, its farthest may reach 5Kbps/10km, may satisfy the common information and the pronunciation transmission speed and the distance request.

网络拓扑系统选用总线分布式结构，采用较成熟的工业控制网络CAN总线技术，其最高通信速率可达1 Mbps／40m，最远可达5Kbps／10km，可满足一般信息和语音传输速率和距离的要求。

Chapter 2, After analyse the structure of Internte, A layered overlay networks for Large-Scale CDN is proposed, and based on this overlay networks, we developed corresponding Hierarchical load balancing and Hierarchical Content routing antilogy .

第二章是CDN分层覆盖网，针对大型CDN覆盖网络，根据CDN的发展要求和Internet网络特点，构建具有分层拓扑结构和逻辑组织特点的大型CDN覆盖网，并在此基础上提出分级均衡和对应内容路由思想。

It not only analyses the metaphor mechanisms of AIS, but also describe the framework of immune algorithm and common immune algorithm. On the other hand the paper introduces the topological structure of Bayes network, assumption of the independence condition, the basic Bayes formula.

对人工免疫系统，不仅分析了它的仿生机理，还给出了免疫算法的基本架构，和常用的基于群体的免疫算法；对贝叶斯网络，给出了基本的贝叶斯公式，分析了贝叶斯网络的拓扑结构，和条件独立性假设。

With scheduling algorithms FIFO,the communication model is set up and network elements' arrive curves and service curves are derived for a switched industrial Ethernet model with two levels' tree topology.Then,analytic expressions of the worst case end-to-end delay,buffer size and output burstiness are presented,the maximum network delays of real-time data are calculated based on derived results.

针对FIFO调度算法，对两级树型拓扑结构的交换式以太网系统建立了通信模型，推导出各网络元素的到达曲线和服务曲线，由此得到了最大时延、所需缓冲区大小、输出突发量等实时业务流的主要参数解析表达式；利用推导所得结论计算了实时业务流的最大网络时延。

First of all, the concept of network control system is introduced, and then the structure of some common control network, medium access and the application occasions are analyzed.

论文首先介绍了网络控制系统的概念，分析了几种常见的控制网络的拓扑结构、介质访问控制原理以及它们的适用场合。

In Fibre Channel, fabric topology has more connectable devices than point-to-point and arbitrated loop topology. It is more opening, flexible and scalable. No blocking switch fabric can supply most network throughput.

光纤通道中，交换结构的可连接设备数量远比点对点和仲裁环的拓扑结构要多且具有更高开放性、灵活性和可扩展性，而且无阻塞的交换结构能够提供最大的网络吞吐量。

Based on this, it explored the convergency feature, dynamic feature and class feature of industry network.

在此基础上，探讨了产业网络集聚特性、动态特性和层级特性，并以此定性地推导出产业网络的拓扑结构可能具有小世界特性和无标度特征。

Based on complex network theory, the qualitative analysis of the topology of NCW is carried out by establishing a four-tier gird diorama. Then we discovered that NCW has inherent scale-free feature.

基于复杂网络理论，通过建立四重网格立体模型，定性分析了网络中心战的拓扑结构，从中发现其具有无尺度的基本特征。

Plenty of samples is provided for training BP neural network by traditional design method and the topology structure is built using forward propagating data and backward propagating error data, which is applied to optimal design of parallel double broken line pulley in order to accomplish the mapping between main parameter of hoisting mechanism of gantry crane and the related parameters of parallel double broken line pulley.

利用传统的设计方法为BP神经网络的学习提供足够样本集，然后通过正向传播和误差反向传播建立BP神经网络的拓扑结构，并将其应用于平行双折线卷筒的智能设计中，以完成龙门起重机起升机构主要设计参数与平行双折线卷筒相关参数的映射，提高设计的质量和效率，为龙门起重机关键零部件的智能设计提供一个新的途径。

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。