progrgms

opnet14.5 实现陈敏版opnet仿真中mrt_net(Opnet14.5 implementation of mrt_net network simulation in Chen Min version of OPNET)

ccna 网络的教程 中文教程 ccna 的初级教程-CCNA Network Chinese Tutorial Tutorial Tutorial CCNA junior

中频感应加热以其加热效率高、速度快，可控性好及易于实现机械化、自动化等优点，已在熔炼、铸造、弯管、热锻、焊接和表面热处理等行业得到广泛的应用。 本设计根据设计任务进行了方案设计，设计了相应的硬件电路，研制了20KW中频感应加热电源。 本设计中感应加热电源采用IGBT作为开关器件，可工作在10 Hz～10 kHz频段。它由整流器、滤波器、和逆变器组成。整流器采用不可控三相全桥式整流电路。滤波器采用两个电解电容和一个电感组成Ⅱ型滤波器滤波和无源功率因数校正。逆变器主要由PWM控制器SG3525A控制四个IGBT的开通和关断，实现DC-AC的转换。 设计中采用的芯片主要是PWM控制器SG3525A和光耦合驱动电路HCPL-316J。设计过程中程充分利用了SG3525A的控制性能，具有宽的可调工作频率，死区时间可调，具有输入欠电压锁定功能和双路输出电流。由于HCPL-316J具有快的开关速度（500ns），光隔离，故障状态反馈，可配置自动复位、自动关闭等功能，所以选择其作为IGBT的驱动。 对原理样机的调试结果表明，所完成的设计实现了设计任务规定的基本功能。此外，为了满足不同器件对功率需要的要求，设计了功率可调。这部分超出了设计任务书规定的任务。(induction heating with high heating efficiency, speed and good controllability and easy to mechanization. the advantages of automation, in melting, casting, bending, forging, welding and surface heat treatment and other industries have been widely employed. According to the design tasks for the design of the program design, design corresponding to the hardware circuit, Development of 20 KW induction heating power. The design of induction heating power IGBT used as a switching device, which can work in 10 Hz- 10 kHz frequency band. It consists of rectifier, filter, and the inverter components. Controlled Rectifier not use the entire three-phase bridge rectifier circuit. 2 filter used an electrolytic capacitor and inductor components II-type filter and passive PFC. Inverter mainly by the PW)

异步套接字编写的网络聊天室程序，根据孙鑫VC++深入详解的例子改写，使用Visual studio 2008 SP1在Unicode编码环境下编写，可以收发中文字符。(Asynchronous socket program written in Internet chat rooms, according to Sun Xin VC++ depth Detailed examples rewritten using Visual studio 2008 SP1 environment written in Unicode encoding, you can send and receive Chinese characters.)

基于struts的新闻发布，适合初学者，稍作修改可以作为自己的网站(struts on the press releases, for beginners, to make some modifications as their own websites)

实现部分弹幕功能，类似BILIBILI弹幕网(Achieve partial barrage function)

绝佳的TabView控件的方式之三,VC++60经过运行调试的,可直接使用(One of the best ways to control TabView is to run VC 60 with the)

一个简单的pop3接收邮件程序-a simple procedure and receive email pop3

关于 网络中查看对方电脑上的文件的程序，永无往南刚落受案顾客建立得空-The other computers on the network, view the files on the program, never just off the south building was empty by the case of customers

基于python socket和tkinter界面库实现的网络聊天室程序，实现登录、注册、在线成员显示、聊天等功能