PID_AUV

齿轮系统非线性动力学模型和动力学求解 齿轮非线性动力学研究(Nonlinear dynamic model and dynamics of gear system for solving nonlinear dynamics of gears)

一个C#生成随机数字编码的例子，附完整代码文件，可用于设备、包装等编码的生成，随机生成，按照 事先约定好的规则生成，这种随机生成的编码在日常生产中使用频率极高。

说明：  OV5640 Datasheet. Easy to understand.

说明：  web录音dome，基于recorder.js实现(Web recording dome based on recorder. JS)

说明：  An adaptive wide-screen response accordion image special effect code based on jQuery

问题描述: 一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度 方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度）） 初始条件：t=0时水等于100度 边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1） 2.杯壁绝热，第二类边界条件 图形显示格式,取过圆柱轴的截面温度变化将其做成动画. -Problem description : a cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 Coke/(m** seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k/h, h for 1) 2. Beibi insulation, The second category boundary conditions graphics format, cylindrical shaft for the cross section of its temperature changes caused animation.

Java实现IP探测程序，我是说好像是IP探测用的，是清华大学计算机学生写的，除了程序本身的功能外，你还可以从这个程序中了解到Java连接和操作数据库，读取txt文本文件，将数据数据写进数据库，更新TXT文件等功能，这些功能也是很实用的哦。

非常好的PCB高级设计讲座，适合大多数工程师们参考学习.(Very good PCB advanced design lecture, suitable for most engineers to learn.)

计算齿轮箱阶次跟踪，可得到角度域信息，绘制阶次谱(The angular domain information can be obtained by calculating the order tracking of gearbox.)

说明：  前景识别vibe程序，运行流畅。 b哥大作的个人实现版，准确率和高斯建模差不多，但运行速度极快(foreground he C library function int rand(void) returns a pseudo-random number in the range of 0 to RAND_MAX. RAND_MAX is a constant whose default value may vary between implementations but it is granted to be at least 32767.)