网络网

The research of this paper is began with the analysis the geographic spatial character of the UPTN, and designs the UPTN data mode based on GIS. Then, based on the good exhibiting all kinds of topology of the UPTN, and combined with the technology evaluation standards of the UPTN, this paper builds the UPTN planning mathematic model, and puts forward the quantitative calculation of the UPTN evaluation standards based on GIS; brings forward the arithmetic of the optimal path of the UPTN based on the public traffic network storage structure; designs the bus lines grouping management model, and realizes the contradistinctive evaluation of the UPTN planning projects based on GIS.

论文研究的重点内容是从分析城市公交网络中地理空间实体的特征开始，设计基于GIS的城市公交网络数据模型，在有效表现公交网络拓扑关系的基础上，根据公交线网技术评价指标，建立基于GIS的公交线网规划的数学模型，并给出公交线网评价指标的GIS量化计算方法；提出以公交线网数据存储结构为基础的公交网络最优路径算法；设计公交线路分组管理模型，实现公交线网规划方案对比分析。

Investment in hardware is necessary in order for initiation of a new node of the international network of networks.

为启动国际网络网的新节点，硬件上的投资是必要的。

The embodiment of the invention discloses a call connection method used for an IP IMS. The method comprises the following steps: the portal element of a called network receives a session request of a calling network; user identification information is contained in the session request; when the portal element of the called network judges that the identification information of a called user is incomplete, the portal element of the called network sends the calling network a responding message which indicates that the identification information of the called user is incomplete; the calling network updates the identification information of the called user according to the responding information and transmits the updated identification information of the called user to the portal element of the called network.

本发明实施例公开了一种IP多媒体子系统中的呼叫接续方法，包括：被叫网络入口网元接收主叫网络的会话请求，在会话请求中包含被叫用户标识信息；当被叫网络入口网元判定所述被叫用户标识信息不完整时，向主叫网络发送指示所述被叫用户标识信息不完整的响应消息；主叫网络根据响应消息更新被叫用户标识信息，并向被叫网络入口网元发送所述更新后的被叫用户标识信息。

One:theplanproposes to research and develop the next generation network system structure and related network protocol, with the focus on promoting the multi-media service network technology based on the core of IMS, including IPv6, as well as the research, development, and industrialization of high performance multi-service bearing network technology and end-to-end network QoS and security technology; the goal is to preliminarily understand the next generation network system structure as well as core network QoS and safety in order to form a group of next generation core technology and innovative products that has independent intellectual property to become an important player in the next generation network's international standard.

一、规划提出进行下一代网络体系架构和相关网络协议的研究开发，重点推进包括IPv6、以IMS为核心的多媒体业务网技术、高性能多业务承载网技术和端到端网络QoS保障技术等领域的研发和产业化工作，初步解决下一代网络的体系架构及核心网QoS与安全保障问题，形成一批具有自主知识产权的下一代网络核心技术和创新产品，在下一代网国际标准中占据重要地位。

The method comprises: 1 when GSM module needs to select a network, it firstly decides if there is a 900 MHz frequency range network capable of meeting the communication need; if yes, then selecting the 900 MHz frequency range network as the working network of the dual-mode mobile phone; otherwise, entering the step 2; 2 deciding if there is a 1800 frequency range network; if not, then returning the step 1 to reselect network; if yes, then selecting 1800 frequency range network as the working network of the dual-mode mobile phone.

本发明公开了一种PHS及GSM双模手机中GSM模块择网的方法，涉及无线通信领域，为解决PHS及GSM双模手机不同网络间信号干扰而提出，采用的技术方案为：(1)GSM模块需要择网时，首先判断是否存在满足通信要求的900MHz频段网络，若存在则选择该900MHz频段网络作为所述双模手机的工作网络，否则进入步骤(2)；(2)判断是否存在符合通信要求的1800MHz频段网络，若不存在则返回步骤(1)重新择网；若存在则选择1800MHz频段网络作为该双模手机的工作网络。

After analyzing the implementation of TCP/IP and Z-Stack, this paper raised the gateway protocol model of ZigBee based wireless sensor network which mean to run two protocols in one simple MCU, and programmed in embedded C to exchange packet on the application layer.

然后对嵌入式TCP／IP协议以及Z-Stack进行协议融合，提出了基于ZigBee技术的无线传感器网络网关的协议模型，即在同一个MCU中实现了两个不同的协议栈，使用嵌入式C语言在应用层编写程序交换报文。论文最后使用VC。

The whole PPT-reports of the Forum have put into "Complex Network Science Forum Circle" on Science Network in China (Please see: hettp//www.sciencene.cn/g/ComplexNets ) and also appear on the CCAST-WL Webside (Please see: www.ccast.ac.cn/workshop ). Main issues of the Forum are associated main subject of Network Science with application, including: review and outlook of network science ,spreading model of the H1N1 influenza virus , dynamics of neural network , brain functional networks,dynamics of topological structure, military network science with application, space structure of complex networks, community structure,,stationary e fficiency of coevolutionary networks , significance of community structure,,relationshipe between structure and dynamics of complex network, generalized synchronization and control, consensus of multi-agent systems, evolutionary game and friendship network, s preading of epidemic based on human and animal mobility pattern, complex network engineerings, and so on.

本届论坛文集共收编了32篇 ppt 报告，已经公布在中国科学网"复杂网络论坛圈"上（请看： hettp//www.sciencene.cn/g/ComplexNets 并且也发表在中国高等科学技术中心网站上（ the CCAST-WL Webside ）(请看： www.ccast.ac.cn/workshop )，这些报告内容丰富，各具特色，颇有创新，基本涵盖了近年来我国网络科学领域若干重要课题的研究进展和丰硕成果，课题研究颇有深度，不仅具有现实意义的重要课题（如甲型流感全球大爆发之经验统计及其传播模型），而且有前沿课题：生物神经网络系统的动力学与大脑网络，还有一系列重要课题：网络拓扑结构的动力学识别与估计、军事网络科学、网络科学在工程应用、多个体一致性、网络结构与动力学之间关系、同步-协同-中性稳定性和流型的稳定性、网络系统的协调动力学与控制、复杂网络的空间结构、连续系统和离散系统中的广义同步、疾病免疫算法、网络节点匹配、电力网、供应链网、化工网、通讯网与保密通信，等等。

Primarily, the thesis assays the condition of network framework, the network was divided into three levels in terms of network management in order to establish the distributed method ,and still pointing out the intention and denotation of studying the Topology Discovery.Next, the thesis analyzes SNMP protocol minutely, including its development, principle, and the Network Management system that established on the SNMP protocol. Have analysed MIB in detail and the application way of MIB in network management .The thesis also assays the ICMP protocol, describing its working principle and the format of datagram minutely , and describing two important tools of ICMP- Ping and TraceRoute in detail. On the base of upper analysis, the thesis expounds a kind of distributed Topology Discovery project, and book it in one autonomy system. Topology Discovery was divided into two levels in terms of network management, and analyses the way of linking up between the two level. The thesis minutely assays Router-Level Topology Discovery technology basing on SNMP and Subnet-Level Topology Discovery technology basing on ARP and ICMP. According to these analyses, the thesis explores the specific methodology and the technology of XML data object which using the WinSNMP API to achieve topology discovering system on the development platform of Visual C++, and also analyses the technology of topology analysis and topology graph minutely. Moreover, the thesis assays the technology of basic firewall and Topology Discovery response strategy. Finally, the thesis analyses the underlying blind problem of the topology finding, and also analyses the reason that the blind problem produced and the way that reduced. The distributed algorithm that this paper puts forward has a certain directive significance in wireless network or other fields.

本文首先分析了网络结构状况，将网络从网络管理的角度划分为三个层次，为分布式的方法奠定了基础，同时还指出拓扑发现研究的目的及意义；接着本文分析了SNMP协议，详细分析了SNMP协议的发展状况，协议的工作原理，以及由SNMP协议基础上建立的SNMP网络管理体系，详细分析了MIB，以及MIB在网络管理上的应用方式；本文又分析了ICMP协议，详细描述了ICMP的工作原理和数据报格式，并详细描述了ICMP的两个重要工具-Ping 和TraceRoute；然后本文在结合上述分析的基础上，提出了一种分布式的拓扑发现方案，将拓扑发现拟订在一个自治系统内，将拓扑发现从网络管理角度划分为路由器级和子网级两个层次，分析了两个层次之间的衔接方式，同时从拓扑地域的角度将拓扑发现过程分布化，分析了分布式算法的具体方法和分布式结点之间的数据通讯方法，本文详细分析了基于SNMP的路由器级拓扑发现技术和基于ARP和ICMP的子网级拓扑发现技术；根据这些分析，本文利用XML数据对象作为分布式算法中的数据对象，分析了XML的技术，本文使用Visual C++开发平台实现网络拓扑发现系统，详细分析了使用WinSNMP API实现基于SNMP的路由器级拓扑发现和基于ARP的子网级拓扑发现，分析了使用Winsock编程实现基于ICMP的子网级拓扑发现，本文还对拓扑分析和拓扑图的绘制技术作了较细致的分析；本文最后还分析了基本防火墙技术，分析了几种类型的防火墙对拓扑发现带来的影响，以及在拓扑发现时的应对策略，本文还分析了拓扑发现中可能产生的盲点问题，分析了盲点产生的原因以及拓扑发现中减少盲点的方法。

the study aims at the actual network status of one work section in daqing oil field,makes a network analysis and planning for the new mixed model of this work section,expends wireless network for the work section on the basis of existing network,and conjoins wire and wireless network together to form an integrated oil field information transfer system.at the same time,using opnet modeler simulation flat roof to structure simulation models (network models,node models and a process model),and analyzing the functions and work mechanism of the major modules for related models,making a simulation for the structured network models,then according to the different parameters,analyzing the individual statistics comparatively such as delay,data dropped and so on,the effects of data packet,data rate and fragmentation threshold to the network performance are gained.after all these,the best structure network scheme for this improved section is determined.

摘 要：此项研究主要针对大庆油田某作业区的实际网络现状，对该作业区进行网络分析和规划，在该作业区现有的有线网络基础上扩充无线网络，实现有线网与无线网的综合，构成一个完整的油田传输信息体系。同时利用opnet modeler仿真平台为该作业区新建混合网络建立仿真模型(网络模型、节点模型和进程模型)，分析相关模型中主要模块的作用和工作机理，对已建立的网络模型进行仿真，在不同的参数设置下，通过对比分析时间延迟、丢包率等统计特性，得出数据包分组、数据率和拆分门限对网络性能的影响，最终决定改进网络的最佳组网方案。

Mrb4b00的网民说Going to China for a month or two every year, I find that all these censorship is way overhyped.

我每年要去中国呆一两个月，我发现所谓的网络审查是太夸张的说法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。