qiyizhifaPCA

Control the water tank by open and close the valve using PID controller. Each controller are tested, and compare.

说明：  openssl for tls service

用DELPHI编写的聊天程序-prepared with the DELPHI chat program

适合企业使用的考勤系统，可以记录每个员工的考勤情况。(Attendance system for business use, you can record each employee' s attendance.)

说明：  abaqus 从odb文件提取数据到txt文件(get data form Abaqus odb file)

说明：  克里金(Kriging)插值法又称空间自协方差最佳插值法，它是以南非矿业工程师D．G．Krige的名字命名的一种最优内插法。克里金法广泛地应用于地下水模拟、土壤制图等领域，是一种很有用的地质统计格网化方法。它首先考虑的是空间属性在空间位置上的变异分布．确定对一个待插点值有影响的距离范围，然后用此范围内的采样点来估计待插点的属性值。该方法在数学上可对所研究的对象提供一种最佳线性无偏估计(某点处的确定值)的方法。(Kriging interpolation, also known as spatial autocorrelation optimal interpolation, is named after d.g.krige, a mining engineer in South Africa. Kriging method is widely used in groundwater simulation, soil mapping and other fields. It is a very useful geostatistical grid method. Firstly, it considers the variation distribution of spatial attributes in spatial position, determines the range of distance that affects the value of a point to be inserted, and then estimates the attribute value of the point to be inserted with the sampling points in this range. This method can provide the best linear unbiased estimation (the determined value at a certain point) for the studied object mathematically.)

Visual C++实现视频编码中的YUV到RGB转换并显示(Visual C++ implementation of YUV video coding to RGB conversion and display)

输入气象数据，根据ASRL模型计算森林区域最大树高(mapping maximum tree height with ASRL model)

本实验完成发光二极管的循环点亮实验，由于输入晶振为20M，分频得到count1信号，故每间隔约1S彩灯循环移位一次。 也可以外接32768hz的晶振经4060分频后的1HZclk输入，自己可以尝试改变实验，加以练习。 现象：可以看到流水灯-In this experiment completed the cycle of light-emitting diode light experiments, as a result of the importation of crystal for the 20M, sub-frequency signal received count1, so each interval of about 1S Lantern a cyclic shift. Can also be the external 32768Hz crystal oscillator frequency by 4060 after 1HZclk input, they can try to change the experiment, to practice. Phenomenon: we can see water lights

暖通冷凝器计算的excel表格计算文档，比较实用(HVAC condenser calculation excel spreadsheet documents, more practical)