网络隧道

网络隧道代理模型及其关键技术研究

Research on Network Tunnel Proxy Models and Its Key Technologies

本文详细介绍了VPN网络隧道技术和目前主要的隧道协议L2TP和IPSec的原理和技术特点，并简要介绍通过网络隧道技术建立VPN网络。

This thesis describes the VPN tunnel technology and L2TP & IPSEC protocol , and describes how to set up a VPN based on tunnel technology .

基于模糊BP网络的隧道施工方法选择研究

Research on the selection of tunnel construction methods based on fuzzy BP network

基于BP神经网络的隧道渗漏水等级评定模型研究

Study on Evaluation Model for Water Leakage Grades of Tunnels Based on BP Neural Network

基于奇异值分解和免疫克隆BP网络的隧道围岩变形位移的前推修正模型

Model of deducing onwards and revising displacement of tunnel surrounding rock based on singular value decomposition and immune clone BP network

提出的基于RBF神经网络的隧道围岩变形预测方法，不仅能很好地描述复杂的围岩变形时程曲线，而且比BP神经网络具有更快的收敛速度和更好的全局搜索能力。

This method not only can be utilized to approximate the complex deformation curves , but also has higher convergence speed and better globally-searching ability than those using BP neural networks .

一种基于模糊神经网络公路隧道纵向通风控制系统

A Road Tunnel Longitudinal Ventilation Control System Based on Fuzzy-Neural Network

基于图像传感器网络的隧道形变监测系统研究

Research of Tunnel Deformation Monitoring System Based on Image Sensor Networks

基于模糊神经网络的隧道照明控制系统

Tunnel illumination control system based on fuzzy neural network

虚拟专用网络及其隧道实现技术

VPN and its Tunnel Implementing Technology

第三部分提出了基于模糊神经网络的隧道火灾报警系统。

In the third section a tunnel fire detection system based on fuzzy neural network is proposed .

如何对网络使用隧道，从而使您的团队能够远程连接到防火墙后面的数据库？

How do you tunnel your network so your team can connect remotely to a database sitting behind a firewall ?

当前隧道协议主要有两种：链路层隧道协议和网络层隧道协议。

At present , tunnelling protocol primarily has two categories : data layer tunneling protocol and network layer tunnelling protocol .

研究了HDPE/GN导电复合材料电热平衡态的非线性导电行为，电热平衡态的非线性导电行为是导电网络内隧道效应和焦耳热效应共同作用的结果。

The nonlinear conduction behavior in electric-thermal equilibrium state for HDPE / GN conducting composites under applied currents was investigated . The result showed that nonlinear conduction behavior in electric-thermal equilibrium state was induced by tunneling effect and Joule heating effect in the conducting network .

基于BP神经网络的公路隧道火灾探测研究

Study on the Tunnel Fire Detection Based on BP Neural Network

利用BP神经网络模型辨识隧道施工的危险源

Identify Danger Source in Tunnel Construction by Using BP Neural Network Model

基于PLC网络的公路隧道测控系统实现

Implement of Measurement And Control System in The Highway Tunnel Based on PLC Network

NET为平台，结合UML统一建模语言和COM+技术研发了基于网络的TBM隧道施工数据库系统。

The UML ( Unified Modelling Language ) and COM + are used in this system .

无线传感反应网络与IPv6隧道适配技术研究

Study on the Tunnel-Fitted Matching between the Wireless Sensor and Actor Networks and the IPv6

采用BP神经网络对公路隧道新奥法施工过程中围岩力学参数的反演分析进行了研究，通过隧道有限元方法得到了网络训练样本。

The back analysis is made by means of the BP neural network algorithm on the mechanics parameters of surrounding rock masses in a highway tunnel construction project by NATM .

VPN（virtualprivatenetwork）是一种在公共网络上构建隧道，并在隧道上进行加密、认证等方法，从而实现虚拟专用网络的技术。

VPN ( Virtual Private Network ) is the technology of building tunnels over the public network by using technology of tunnel and encryption as well as method of identity authentication , thus realizing virtual private network .

针对隧道围岩应力变化难以准确预测的问题，作者在分析了隧道围岩应力变化规律和主要影响因素的基础上，采用BP神经网络建立了隧道围岩应力时序的神经网络预测模型。

After the transformation tendency of the stress on the surrounding rocks and the factors affected it are analyzed , the neural network model for predicting the stress on the surrounding rocks is created .

提出了一种通过GPRS无线网络的VPN隧道技术，企业人员可以通过GPRS移动终端在线的实时的对企业进行物流管理，以增强企业竞争力。

The paper puts forward a VPN tunnel technology by GPRS wireless networks . The workers of enterprises may implement online , timely logistics management through GPRS mobile terminals .

一旦网络攻击者利用隧道协议的安全弱点攻击VPN成功，所有互联网上利用VPN技术提供的安全数据传输将不再安全。

Once network attackers attack VPN successfully making use of security weakness of tunnel protocols , all safety data transmission making use of VPN technology in the Internet is no longer safe .

结合计算机及现场Modbus网络构建了隧道监测网络，同时还介绍了开发隧道监测网络的软硬件设计过程。

Tunnel monitoring network is designed via the industrial computer and Modbus . The design process of hardware and software for the tunnel monitoring network is stated in detail .

VPN技术是在公共传输网络上通过隧道技术完成专用数据信息传输的技术，提高用户网络运营和管理的灵活性，满足用户对信息传输安全性、实时性的需要。

VPN is currently a hot research on network technology , which aims to improve the flexibility of network operation and management to satisfy users ' requirements on transmission security and real-time capability , using tunnel to transfer delicated data via the public network .

人工神经元网络在公路隧道围岩判别中的应用

The Application of Artificial Neural Network in Highway Tunnel 's Rock Masses Classification

基于主题相似度指导网络蜘蛛穿越隧道的爬行算法

A Crawling Algorithm Based on Topical Similarity for Guiding the Web Crawler Though Tunnels

针对大规模虚拟专用网络中安全隧道管理的复杂性，提出了一种基于组策略的管理模型。

Group policy based management architecture is proposed to solve complexity problem of security tunnel management in large-scale VPN network .

模糊神经网络预测公路隧道揭煤突出危险性

Prediction Fatalness of the Coal and Gas Outburst in Cutting through Coal Seam in Highway Tunnel based on Fuzzy Neural Network