频域特征提取

Python编程，从入门到实践，一本非常适合初学者的书籍(Python programming, from entry to practice, a book that is very suitable for beginners)

算法导论第三版，英文版，感觉挺好用的，想学算法的可以参考学习学习(INTRODUCTION TO ALGORITHMS)

java 实现的2.5D地图,地图小,但是可以学习方法-realized 2.5D maps, maps of small, but we can learn

C#禁止Windows关机的测试代码，不让电脑关机，当点击关机按钮后，电脑不会关机，请选择“开始关闭计算机”菜单测试一下效果，测试完成后，程序还要恢复允许关闭操作系统的功能，本知识主要是考察C#与Windows系统之间的联系。

：好风格应该成为一种习惯。如果你在开始写代码时就关心风格问 题，如果你花时间去审视和改进它，你将会逐渐养成一种好的编程习惯。一旦这种习惯变成 自动的东西，你的潜意识就会帮你照料许多细节问题，甚至你在工作压力下写出的代码也会 更好。(: Good style should become a habit. If you write code at the beginning when the issue of concern for style, if you take the time to examine and improve it, you will gradually develop a good programming practice. Once this habit becomes automatic things, your subconscious will help you take care of many details, and even under the pressure of your work will be better to write code.)

MSP430调节电子负载,实现430单片机对电子负载的调节(MSP430 electronic load adjustment)

说明：  粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。PSO 算法属于进化算法的一种，和模拟退火算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。粒子群算法是一种并行算法。(Particle swarm optimization (PSO), also called particle swarm optimization (Particle Swarm Optimization), is abbreviated as PSO, which is a new evolutionary algorithm (Evolutionary Algorithm EA) developed in recent years. PSO algorithm is a kind of evolutionary algorithm. It is similar to simulated annealing algorithm. It also starts from the random solution and finds the optimal solution by iteration. It also evaluates the quality of the solution through fitness, but it is simpler than the genetic algorithm rule. It does not have the crossover (Crossover) and the Mutation operation of genetic algorithm. Search for global optimum. This algorithm has attracted the attention of the academic community for its advantages of easy realization, high accuracy and fast convergence, and has shown its superiority in solving practical problems. Particle swarm optimization (PSO) is a parallel algorithm.)

一个vb做的使用数据库操作Excel的程序-a vb do use the Excel database operation procedures

减少频谱泄漏，通常在采样后对信号加窗。在电机故障诊断领域，需同时考虑频率分辨率和频谱泄漏。应用最广泛的窗函数是汉宁窗。(To reduce the spectrum leakage, a window is usually added to the signal after sampling. In the field of motor fault diagnosis, frequency resolution and spectrum leakage should be considered at the same time. The window function is the most widely used Hanning window.)

具有移位运算功能的模型机设计实验报告-shift computing with the experimental model aircraft design report! !