格兰杰因果检验

小波分解可以使人们在任意尺度观察信号，只需所采用的小波函数的尺度合适。小波分解将信号分解为近似分量和细节分量，它们在应用中分别有不同的特点。比如，对含有噪声的信号，噪声分量的主要能量集中在小波分解的细节分量中，对细节分量做进一步处理，比如阈值处理，可以过滤噪声。(Wavelet decomposition allows people to observe signals at any scale, just the size of the wavelet function is appropriate. The wavelet decomposition decomposes the signal into approximate and detail components, and they have different characteristics in application. For example, for noisy signals, the main energy of the noise component is concentrated in the detail components of wavelet decomposition, and further processing the detail components, such as threshold processing, can filter the noise.)

用java开发的3D俄罗斯方块。用到些 openGL的东西。还有个版本是基于C++开发的。请在站内搜索(3D Tetris )

说明：  绘制风速频谱主程式，可以将得到的风速时程进行绘制风速频谱。也可以将几笔风速频谱作对比(Wind speed spectrum main program)

很准确,权威的测试cpu及内存的工具!!!选购内存查看真假时很实用-very accurate, authority of the cpu and memory testing tools! ! ! Optional memory View real and very practical

内部排序算法，此程序包含了基本的排序算法，并对各个算法的性能做了相应的分析-internal sorting algorithm, which includes the basic sorting algorithm, as well as the performance of various algorithms do the corresponding analysis

上位机读写汇川H3U PLC的寄存器与继电器(Register and Relay of H3U PLC for Upper Computer Reading and Writing)

jQuery实现超酷的菜单提示效果，也可用于链接提示，因为导航菜单本身是带有链接的，本款菜单可适时显示鼠标悬停时的菜单项的文字提示内容，且提示框样式漂亮，还有渐变动态效果，

说明：  泊松随机过程，供信号处理的学习者参考，希望大家喜欢(Poisson stochastic process for the signal processing of the learner reference, hope you like)

这是一个集合聊天和资料传诵的软件。他可快速的传送电影，文字，图片等 -This is a combination of chat and information passed down through the software. He may rapid transmission film, words and pictures

说明：  coremail邮件系统企业通讯录导出脚本(Coremail Mail System Enterprise Address Book Export Script)