基于双协议栈的6to4隧道技术的应用

IPv6是下一代互联网的核心技术。IPv4向IPv6过渡是一个必然发展过程,如何将过渡中占主导地位的IPv4网络逐渐过渡到占主导地位的IPv6网络,这是近几年研究的重点和方向。6to4隧道技术便是一种主要的过渡技术。该文对这种隧道技术进行了详细分析和研究,指出了这种隧道技术在使用中的优点,在此基础上,重点阐述了IPv4向IPv6的过渡实施策略。     

IP Address Data and its Place in the Library Community Today and in the Future

Internet Protocol (IP) technology has played an important role in the management of access to scholarly work within institutions since the advent of electronic publishing in the late 1990s. Despite recent efforts to explore alternative modes of authentication, the ubiquitous use of IP address authentication within the systems of libraries, publishers, and third party vendors around the world suggests it will continue to play a significant role for the foreseeable future. However, recent studies show that a large amount of the IP address data held within publisher systems is incorrect, improperly assigned, or requires clarification. Poor source data carries significant risks—not the least of which translates into unreliable usage reporting for libraries and publishers. The IP Registry is designed to help mitigate these challenges by creating a Registry of cleaned data that libraries and publishers can interact with in a centralized fashion thereby helping to ensure accuracy and reducing the level of resources necessary to manage and communicate changes to existing data. The database of more than 60,000 academic, corporate, and government libraries was created through the amalgamation of raw source data from more than 170 scholarly publishers. In addition to cleaned IP address data, the Registry includes standardized English naming, aliases, local language naming (and characters), hierarchies, and organizational IDs for each record. The importance of accurately understanding current usage and how libraries utilize published content is clear. Regardless of what the future holds, the need for a clean and stable source of IP address data is real for libraries, publishers, and vendors alike.     

DHCP在宽带城域网中的应用

在分析DHCP工作原理的基础上 ,讨论了怎样对DHCP进行规划的原则和方法 ,给出了其网络环境的安装和配置的详细步骤     

隧洞爆破方案优化的层次分析

针对隧洞爆破总成本的最优化这个实际问题,重点分析影响隧洞爆破工程总成本的四项因素：钻孔成本、爆破成本、装载成本和运输成本的情况下,结合一个工程实例,采用层次分析的方法进行了分析论证,提出了相应的优化方案,可为合理探求隧洞爆破总成本的最优化和目前工程建设单位需要解决成本最优化问题提供一定的借鉴作用。     

农远资源与中小学教学的有效整合

农村远程教育是我国对办学条件较艰苦的地区实施的一项工程。它把优秀的教学资源输送到农村每个学校,教师与学生利用这些资源,来提高教学质量。但这些资源是否能与教学有效整合的问题一直影响着农村远程教育项目的发展,这使得对如何加强农远工程资源与中小学教学的有效整合的研究显得颇为重要。     

基于嵌入式技术网络测试仪的研究及设计

本文就网络发展现状进行分析,重点研究了嵌入式技术,C8051F340处理器和TCP/IP协议。提出了一种基于嵌入式技术的网络终端测试仪的设计。     

浅谈节约IP地址的方法

本文主要介绍了IP地址的作用和几种节约IP地址的方法,讨论了这些方法的实现原理,并且指出了IP地址匮乏危机的最终解决方案。     

TCP/IP协议与网络故障实战

TCP/IP协议是网络中计算机之间通信的“语言”,TCP/IP协议系统的层次结构和数据传输机制,使之成为Internet上最为实用的协议。在诊断网络故障中,清晰地把握此协议,可使网络故障的诊断与排除变得更加简单。     

公路隧道新奥法施工技术探讨

新奥法施工是隧道工程的先进施工技术。简要介绍新奥法的发展过程和基本原理,从锚喷支护、监控量测、光面爆破和科学组织四个方面对新奥法施工要点进行探讨。     

饱和烷烃衍生物的分子隧道结制备及其电学性能研究

采用毛细管隧道结法,用C12H25OH和C122H25NH2作功能分子,采用分子自组装方法,在无水无氧条件下制备“镓-自组装单分子层-镓”分子隧道结,并对其电学性能进行了检测．结果表明：在无水无氧条件下制备的分子隧道结的I～V曲线同样呈现出明显的非线性关系,其电子迁移较之在大气条件下更容易发生．