fractral

基于VISA的对示波器控制样例，VB6 编写，供学习(Based on the sample oscilloscope control on VISA)

重载成员函数使CAsyncSocket类支持IPX/SPX协议-reload the member function to make class CAsyncSocket support IPX/SPX protocol

本程序为一个LAMP的投票系统，用户能够通过该系统参与在线投票，发起投票，进行投票内容管理等。投票方式支持单选和多选两种，同时，能够进行投票结果的统计，并用图形化方式显示结果。-The LAMP program is a voting system, users can participate in online voting through the system, create polls, vote on content management. Voted to support two kinds of radio and multi-select the same time, be able to vote on the results of the statistics and graphically display the results with.

说明：  he energy generated using a photovoltaic (PV) are depends mainly on meteorological factors such as temperature and solar radiation. Considering the high cost and the low efficiency of a PV system, it must operate at maximum power point (MPP) which changes with the load variations and weather conditions. This article presents the conception of a nonlinear controller for the DC-DC converter to retrieve a maximum power from photovoltaic systems (PV). This is affected via the control of duty cycle of the converter. The backstepping control is used to design the controller. The incremental conductance algorithm provides the output reference voltage PV to the backstepping controller. An integral Action is added in order to render the controller robust against changes of parameters and perturbations. The proposed controller performance is assessed by numerical simulations under changing atmospheric conditions(efficiency of a PV system, it must operate at maximum power point (MPP) which changes with the load variations and weather conditions. This article presents the conception of a nonlinear controller for the DC-DC converter to retrieve a maximum power from photovoltaic systems (PV). This is affected via the control of duty cycle of the converter. The backstepping control is used to design the controller. The incremental conductance algorithm provides the output reference voltage PV to the backstepping controller. An integral Action is added in order to render the controller robust against changes of parameters and perturbations. The proposed controller performance is assessed by numerical simulations under changing atmospheric conditions)

机械优化设计进退法的程序，已经测试，绝对好用。(Mechanical advance and retreat method optimization procedure has been tested, absolutely easy to use.)

利用ie cache 和 http 协议开发下载程序的例子，适用于简单的网络下载。-use ie cache and development agreement http download the examples, applicable to simple networks to download.

说明：  DISCRETE ELEMENT METHOD AND ITS PRACTICE ON EDEM 8

用两个字符形成点阵大字，VC++经典编程源码，很好的参考资料。(Lattice with two characters form characters, VC++ classical programming source code, a good reference.)

轨迹跟踪 用PID控制器或者模糊控制器来控制小车的行走。 编写了小车能绕过障碍并且延者给定的轨迹行走，其中小车的轨迹要事先给定。 (Trajectory tracking fuzzy controller with PID controller to control the car or walking. Prepared a car can go around the obstacle and the extension of those who walk a given trajectory, which tracks car to be given in advance.)

感应电机终端滑模矢量控制系统,simulink仿真实验程序。(Induction motor vector control system of the terminal sliding mode)