paypal

ASP最完整的教程。-ASP most complete tutorial.

对网页背景的一个优化!-right background of a web page optimization!

一个经典的在线编辑器,谢谢支持!以后继续努力!-a classic online editor, I would like to thank support! After continued efforts!

Desktop drawing program, for beginners to understand the vc code is a good example, performance fun and easy to learn

说明：  广义s变换matlab程序以及使用例子，真实使用，下载即可。(Generalized S-transform matlab program and its application examples)

精通Java网络编程中的 sockat 编程源代码(Proficient in Java Network Programming sockat programming source code)

一个网络监听程序-a network monitoring procedures

很漂亮的javascript菜单-very nice javascript menu

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)

『下载说明』这里提供给大家的是早已金盆洗手的著名黑客KEVIN D. MITNICK将其一生积累下来的丰富技能汇集成书的《The Art of Intrusion》（入侵的艺术）英文版的PDF格式电子书下载。(Description 』『 download available to everyone here is already well-known to wash his hands of hackers Jinpen KEVIN D. MITNICK its accumulated wealth of life skills together into a book The Art of Intrusion (The Art of Intrusion) English version of the PDF format e-books下载.)