PMSM simulation

双打的Java乒乓球游戏代码，有的说是撞球游戏，不管什么吧，就是这一类游戏，主要是跟随碰撞检测原理实现的。运行在Java手机系统里。本套源码来自国外，源码包内包括IMAGES、背景音效等文件，比较完整，有环境的最好重新编译下运行看效果，界面方面从资源文件看也是相当不错吧。

水声信道仿真程序，来源于Parastoo Qarabaqi 和 Milica Stojanovic(Underwater acoustic channel simulation program, from Parastoo Qarabaqi and Milica Stojanovic)

建立水声信道的射线模型在工程应用上有重要的意义。射线声学是把声波的 传播看作是一束无数条垂直于等相位面的射线的传播，每一条射线与等相位面相 垂直，称为声线。声线途经的距离代表波传播的路程，声线经历的时问为波传播 的时间。声线束所携带的能量即为波传播的声能量。与几何光学相似，射线声学 的描述方法给人直观的感觉，在一定的条件下，射线声学的数学运算也比较简捷， 由射线理论给出的声线图可以给声场以直观、形象的理解。 本模型可以准确的衡量声波在海洋中传播路径(Establishing ray model of underwater acoustic channel is of great significance in engineering application. X-ray acoustics refers to sound waves. Propagation is regarded as the propagation of a bunch of innumerable rays perpendicular to the isophase plane, each ray being in phase with the isophase plane. Vertical, called sound line. The distance through which the sound line Travels represents the distance of the wave propagation, and the time that the sound line experiences is the wave propagation. The time. The energy carried by the sound beam is the sound energy of wave propagation. Like geometric optics, ray acoustics The descriptive method gives people an intuitive feeling. Under certain conditions, the mathematical operation of ray acoustics is relatively simple. The sonogram given by ray theory can give an intuitive and visual understanding of the sound field.Accurate measurement of sound wave propagation in the ocean)

Example of Embedded Zerotree Wavelet encoding in ANSI-C

（1）设计一个“简易计算器”，主要实现判断输入的表达式是否合法将中缀表达式转换成二叉表达式树。后序遍历求出表达式的值。能判断输入的表达式是否合法。 （2）用链式存储存储信息，求值时可以采用递归的思想，对表达式进行后序遍历。 （3）将操作结果保存到外部文件。((1) Design a "simple calculator" to judge whether the input expression is legitimate or not and convert infix expression into binary expression tree. The value of the expression is obtained by post-order traversal. Can judge whether the input expression is legitimate. (2) Store information in chain mode. When evaluating the value, we can use the idea of recursion to carry out post-order traversal of the expression. (3) To save the operation results to external files.)

通过按钮控制灯，能开关，能停止，能接继电器(Control the light through a button)

ansys车辆移动荷载命令流，方便直接输入(ansys vehicle moving load command stream, convenient and direct input)

由网络搜集供大家学习使用如果侵占请自行删除-collected by the network for everyone to learn how to use their own if invaded please delete

脑机接口分类，特征提取用小波包熵，分类使用SVM分类器(Brain-computer interface classification, feature extraction using wavelet packet entropy, classification using SVM classifier)

接口技术实验，实现在LCD上倒计时，程序中可设置起始时间。(lcd set time)