grads

说明：  绘图工具，实用且经过实际测验有着较好的效果，兼容性好(Drawing tool, practical and tested in practice, has good effect and compatibility.)

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.)

在pscad中，关于汽轮机的一次调频测试模型。(The turbine FM test model in pscad.)

绘制磁滞回线，模拟磁滞回线产生的过程，便于理论分析建模(Drawing hysteresis loops to simulate the process of hysteresis loops is convenient for theoretical analysis and modeling.)

这是pscad运行的电弧炉模型，是学习pscad很好的例子(This is pscad running electric arc furnace model, is learning pscad good example)

The Academic Phrasebank is a general resource for academic writers. It makes explicit the more common phraseological ‘nuts and bolts’ of academic writing.

本程序使用matlab实现提取了很多直方图所需要的参数特征，如均值、方差、偏度、峰度、能量和熵。(This procedure used to achieve extracted a lot of matlab histogram parameters needed features, such as the mean, variance, skewness, kurtosis, energy and entropy.)

Matlab绘图教程(大量实例PPT)，可供初学者绘图使用，简单方便。(Matlab graphics tutorials (large number of examples PPT), drawing for beginners to use, simple and convenient.)

基于PSCAD 4.5搭建的IEEE标准2区4机11节点模型，参数配置正确，潮流计算结果正确。(PSCAD 4.5 build local area based on IEEE 4 2 11 node model, all the parameters have been configured correctly, flow calculation results are accurate.)

说明：  图纸保存格式为dxf,此开发包能识别dxf文件的各种图形和尺寸(Drawing feature recognition development kit)