This thesis presents a special local area network and network management design andimplementation for air traffic control system.

Analysis on LAN Interoperability Principle and Solutions to Common Problems;

The Research on LAN Security Strategy on the Basis of Agency Identity Authentication;

Public Computer Rooms LAN Breakdowns Examining and Expelling in Senior Vocational College;

In addition,an iterative algorithm is used to determine the optimal size of regional networks,which will be of benefit to Mobile IP networ.

This paper discusses the use of EIA RS-485 in the microcomputer local network on board electriclocomotive.

Office Automation Systems Under WAN Environment;

The new modern scheme of highway transport with multi medium WAN and operating model based SDH/SONET is set up.

Through the research of informationization system of city water supply dispatching system and application on a project,this paper elaborates on the design of informationization system,distributed water supply dispatching system structure which is based on WANs and design ways and functions of data collection end,data transportation end,data centre and system software.

As an important parameter in various environmental models,the quality of drainage network has a serious effect on geosciences models and geo-processes modeling.

The thesis makes an analysis of the following aspects of enterprises local network construction: necessity of the safety and security,the analysis and design of the safety and security and the implementation of the safety and security.

This paper introduces a distributed measurement and control local network,composed of an IBM AT/286 as master and five MCS-51 monolithic computers as slaves.