Random Four-parameter Method

4种用法的弹出框浮动层，可拖动，Ajax弹出层效果，一共有4种不同形式的弹出框效果，不过风格基本一样，示例截图只是其中一种风格，怎么样？还行吧？

风机叶片的裂纹和断裂是导致风机机组事故的重要因素之一，尽早诊断出风机叶片的 故障部位与故障程度，对安全生产具有意义重大。本文将叶片振动信号作为研究对象，利用小波分解方法对其进行信号分解，并与时域和频域方法处理结果进行对比分析，得出诊断结论。仿真结果表明: 小波分解方法可以更有效的获取故障特征信号，具有较高的故障诊断率。(The crack and fracture of fan blade is one of the important factors that cause the accident of fan set. It is important for safety production to diagnose the fault location and failure degree of fan blade as soon as possible. In this paper, the vibration signal of the blade is taken as the object of study. The signal is decomposed by the wavelet decomposition method, and the results are compared with the time domain and frequency domain methods. The diagnosis conclusion is obtained. The simulation results show that the wavelet decomposition method can acquire the fault characteristic signal more effectively, and has higher fault diagnosis rate.)

说明：  斯坦福大学自动驾驶城市挑战赛的代码，比较值得一看(Code of Stanford University auto driving city challenge)

电力系统仿真建模需要的模型，可以适合智能电网，分布式发电(power system modeling control smart grid stability)

用于加入分布式电源的电力系统选址定容，方便实用。(It is convenient and practical for locating and sizing power system with distributed generation.)

这是一个十分简单的俄罗斯方块的游戏，希望大家会喜欢。-This is a very simple game of the Russian box, I hope you will like.

说明：  matlab 计算bessel光束，零阶贝塞尔函数，希望对大家有所帮助(matlab calculates the Bessel beam)

说明：  近似熵matlab代码,可以得到一段数据的近似熵，研究熵领域的话，是一个基础性的程序(Approximate entropy matlab code can get the approximate entropy of a piece of data. If we study the field of entropy, it is a basic program)

jsp开发网页过程中用到的时间组件，可以放在页面中直接使用，简单方便。-jsp to develop Web pages used in the process of the time component, can be used directly on the page, simple and convenient.

再matlab下面实现信号的fft变换。 是fft函数。-fft