摘要近几年，在人们物质文化需求的持续增长下，人们对通信方面的需求也随之增加，在通信方面，由于无线频谱在本质上属于一种不可再生资源，在需求的增长下自然随之出现短缺，当就目前的情况而言...

Simulation of GSM Mobile Communication SystemAbstract:The current era,the rapid development of science and technology,communication system experience 1G,2G,3G era developed to the ...

作者姓名：基于OFDM的室内可见光通信系统调光控制技术ABSTRACTIn this paper,the indoor visible communication system of OFDM underdifferent application scenarios is studied,and various ...

数字基带传输系统设计与仿真摘要：模拟信号有很多的优点，但数字信号相较与模拟信号而言，它具有更多的好的特性，同时它也有一些缺点，比如对设备的要求比较高，对带宽的需求也比较大。在最近的...

1前言1.1水资源探讨水资源在人类发展进程中扮演着及其重要的角色，是人类社会长河中的必备品。近些年来，水资源问题开始成为我国乃至世界人民关注的问题，在20世纪时联合国就提出了水资源的重要...

of the Brew HouseWang Hua Li(College of food Science,South China Agricultural University Guangzhou 510642,China)Abstract:It is stringently urgent to deal with the difficulty of sho...

苏州科技大学硕士论文AbstractAbstractIn recent years,the rapid expansion of cities in our country,high-rise buildings andexplosion going,landmarks,and more and more high-rise buildi...

Research on remote monitoring system of water qualityparameters based on 4 GAbstract With the rapid development of China's economy in recent years,thedestruction of water resources...

Analysis on the location of Xuzhou garbage dumpbased on ArcGISAbstractLandfill is a double-edged sword,both to protect the environment,but also canpollute the environment,landfill ...

TitleDesign of driving and lifting pump system in sewage treatment plantAbstractAt present,many water-scarce cities and regions have no new sources of water available forexploitati...