P_and_O_MPPT

说明：  API网址缩短程序网站源码轻轻松松缩短你的网址链接(API Web Site Shortening Program Web Site Source Softly Shorten Links to Your Web Site)

将粒子群优化算法与自适应算法相结合，能够自适应调整位置速度，能较少误差。(The combination of particle swarm optimization algorithm and adaptive algorithm can adaptively adjust the position and speed with less errors.)

vb6.0的验证码处理，在去除干扰点时，采用中值滤波是一种不错的方法，中值滤波法是一种非线性平滑技术，它将每一像素点的灰度值设置为该点某邻域窗口内的所有像素点灰度值的中值。中值滤波的实现方法

AT91SAM7S256开发板基础demo，已验证-AT91SAM7S256 development board based on demo, verified

双重差分估计 双重差分模型（difference-in-difference，DID）近年来多用于计量经济学中对于公共政策或项目实施效果 的定量评估。 通常大范围的公共政策有别于普通科研性研究，难以保证对于政策实施组和对照组在样本分配上的完全随机。非随机分配政策实施组和对照组的试验称为自然试验（naturaltrial），此类试验存在较显著的特点，即不同组间样本在政策实施前可能存在事前差异，仅通过单一前后对比或横向对比的分析方法会忽略这种差异，继而导致对政策实施效果的有偏估计。(Quantitative evaluation of policy or project implementation effect. Generally, a wide range of public policies is different from general scientific research, and it is difficult to ensure that the sample allocation for the policy implementation group and the control group is completely random. The non-randomly assigned policy implementation group and the control group are called natural trials, which have significant characteristics, i.e. there may be prior differences between the different groups of samples before the implementation of the policy, and this difference will be ignored only through a single pre-and post-comparison or horizontal comparison analysis method, which leads to the policy. Biased estimation of implementation)

Fractal Explorer GUI-based program for exploring and studying the most common form of fractals, chaotic systems and fractional dimension systems

VC实验：图形程序设计及其应用 在屏幕上出现一个圆心沿正弦曲线轨迹移动的实心圆，而且，每隔四分之一周期，圆的填充色和圆的周边颜色都发发生了变化(颜色自己选取)，同时，圆的半径在四分之一周期之内由正弦曲线幅值的0.2倍至0.6倍线性增长 包含文档 源代码-VC experiment : graphic design and application procedures appeared on the screen in the center along a sinusoidal curve track the movement of a solid round, but every fourth cycle, the round filled with color and the color surrounding the circle has made a change (their color selection), while radius of the circle within the fourth cycle by the amplitude of the sine curve of 0.2 times to 0.6 times the linear growth of the source document contains generation Codes

说明：  在时域尺度上，对序列帧数归一化,方便后续对序列的统一处理(linear temporal interpolation model)

教学网络打字软件，保证好用！专用网络打字比赛软件6.2.0（55用户注册终结版）

C语言做的聚类学习的旋转机械故障诊断，已经经过验证，可以作为参考。(C language clustering learning of rotating machinery fault diagnosis has been verified, and can be used as a reference.)