smooth

自己利用PSCAD搭建的２种PPL锁相环，能够自己调节ＰＩ参数，并与自带的ＰＬＬ进行了测试比较。(PSCAD build their own use two kinds of PPL phase-locked loop to adjust the PI parameters of their own, and with the built-in PLL more)

小型画图板，实现了简单画图板的一些个别简单的功能。(simple draw)

VC动态绘制图像 真的 很好(VC dynamically drawn image very good)

仿真超声图像的源代码 A program fot the simulation of ultrasound systems is presented.It is based on the TUpholme-Stepanishen mehtod, and is fast because of the use of a far-field approximation. (Simulation of ultrasound images of the source code A program fot the simulation of ultrasound systems is presented.It is based on the TUpholme-Stepanishen mehtod, and is fast because of the use of a far-field approximation.)

实现从SDK到MFC的封装 增加了绘制线条 矩形 椭圆等功能 而且可以变换颜色(none sdk to mfc)

变压器励磁涌流，剩磁的表示方法，pscad模型，涌流抑制,psc文件。(Transformer inrush current, representation remanence, pscad model, surge suppression.)

精彩原代码，适合初学者(brilliant original code for beginners!)

在前人工作的基础上对三层层状介质的瑞利波频散曲线进行了正演模拟研究，对假定的几组典型模型参数的频散曲线进行了认真分析。通过分析可知，各频散曲线之间是互不相交的，从而对此问题有了一个更清晰的认识。指出当低速软弱夹层存在时频散曲线的特点，并根据分析结果，说明”之“字形频散曲线的形成机理。(On the basis of previous work, the Rayleigh wave dispersion curves of three layered media are studied by forward simulation, and the dispersion curves of some assumed typical model parameters are carefully analyzed. Through the analysis, we can see that the dispersion curves are not intersected with each other, so we have a clearer understanding of this problem. It is pointed out that the characteristic of time dispersion curve exists in low-speed weak interlayer, and according to the analysis results, the formation mechanism of zigzag dispersion curve is explained.)

说明：  图形绘制，可设置线宽、颜色、样式，通过本例将了解如何使用自定义画笔定义线体的颜色，线宽，线形等，以及如何为程序中添加选项菜单和选项设置对话框，如何使用标准颜色对话框，如何使用字体对话框，在选项对话框中实现预览功能。实现选项对话框和窗口类中的数据交换。如何改变对话框和控件的背景色，如何改变控件的文本颜色，对按钮控件的特殊处理。如何在窗口中显示一幅位图。(VC++ graphics rendering, can set the line width, color, style, through this example will learn how to use custom brushes defined line of body color, line width, line, etc., and how to add options for the program menus and options in Settings dialog box How to use the standard color dialog box, how to use the Font dialog box, implemented in the Options dialog box preview. Implementation Options dialog box and window class data exchange. How to change the background color of dialog boxes and controls, how to change the control' s text color on button controls the special treatment. How in the window display a bitmap.)

cad用lisp获得本机读物理序列号、主板、内存号。(cad lisp obtained with the machine-readable physical serial number, motherboard, memory number.)