dapianjijiaocheng

c函数速查 软件，你想知道更多的系统函数的类型以及调用方法，就快点来下啊(c function Info software, you want to know more the type of system function and method calls on to the next quickly ah)

grab_it for windows /CE pna

malmquist total factor productivity index

说明：  地震、测井方面matlab代码~可以适用于勘探开发中(SeisLab)

说明：  是关于小波去噪在地震信号中的引用，检测地震信号(Is the seismic signal on the wavelet denoising the reference in the detection of seismic signal)

信号处理，振动方面的，很有用，绝不后悔，帮助很大(Signal processing, vibration issues, useful, never regret, very helpful)

HP VEi8 latest BIOS with flash tool under dos

利用8253和8259芯片实现实时电子时钟的功能；利用8255控制七段数码管完成定时扫描显示。显示格式为xx时xx分xx秒，每隔1s，时间值改一次。按键SHIFT可选择时、分、秒，按键CTRL可对所选的时、分、秒进行加1，小时加至23后清0，分、秒加至59后清0。(Use 8253 and 8259 chip to realize the function of real-time electronic clock; use 8255 control seven segment digital tube to complete the timing scanning display. When the display format is XX, XX minutes XX seconds, every 1s, the time value changed once. Button SHIFT can choose time, minutes, seconds, button CTRL can be selected time, minutes, seconds added 1, hours added to 23 after 0, minutes, seconds to 59 after 0)

cmos模拟电路设计，很经典的一本教材的电子版，大家分享(cmos analog circuit design, it is a textbook classic of the electronic version, we share)

利用matlab 进行段数傅里叶变换，进行频谱分析，对于从事相关工作的人很有帮助。(The number of segments by using Fourier transform of MATLAB, frequency spectrum analysis, is helpful to be engaged in relevant work.)