SOLARPV

土地折算：在vb环境下基于mo的不同等级土地折算系统的开发，(Land conversion: vb environment in different grades of land-based mo conversion system development,)

针对基于双曲线定位的DV-Hop算法中误差项的异方差性引起的定位误差大的问题，提出了一种基于加权双曲线定位的DV-Hop改进算法。算法分析了基于双曲线定位的DV-Hop算法模型中误差项的异方差性，用加权最小二乘法对异方差性进行纠正，对加权最小二乘法中的权值矩阵进行了推导并得到与跳数相关的最佳权值矩阵，使得误差项满足同方差性，所得估计值更加接近最佳线性无偏估计。仿真实验结果表明，所提算法在节点定位精度上较现有的基于双曲线定位的DV-Hop算法都有一定提高。(Aiming at the problem that the heteroscedasticity of observation errors leads to low locating accuracy in DV-Hop algorithm based on hyperbolic positioning, this paper proposes an improved DV-Hop algorithm which based on weighted hyperbolic positioning. The algorithm analysis the heteroscedasticity of the error term in the model and takes advantage of weighted least square method which corrects heteroscedasticity straightforwardly. Then, the weight matrix related to least hops between nodes is deduced, the estimators thus obtained are more close to the best linear unbiased estimator. The simulation results show that the location performance of the improved algorithm is better than that of the exsiting DV-Hop algorithm which based on hyperbolic positioning.)

基于逆波兰法的计算器程序，该计算器支持小数输入和正负数输入，支持四则运算以及指数运算，也支持括号的使用。(Reverse Polish law based calculator program, the calculator supports input and negative decimal number input, support four operations and index calculation, and also supports the use of parentheses.)

VB把Listview中显示的内容导出到Excel中，用到了控件：MSCOMCTL.OCX和COMDLG32.OCX，我觉得挺实用的一个报表显示实例。

NGIS控件DELPHI567得使用与设计-each country controls Delphi 5 6 7 in the use and design

IEEE34节点系统建模说明 目录：1. Introduction 2. System Modeling 3. Power Flow Validation 4. Wind Generator Modeling 5. Slip and Power Flow Results 6. Short-Circuit Analysis 7. Conclusions(Distribution System Analysis:Panel Session -Induction Machine Modeling)

求解弹流润滑方程的程序，可以得到压力、膜厚分布(Solve the equation of the elastohydrodynamic equation and obtain the pressure and film thickness distribution)

J2ME手机游戏贪吃蛇源码，开发环境eclipse及eclipseme加WTK，windows xp操作系统。(J2ME mobile phone game Snake the source code, development the environment eclipse and eclipseme of plus The WTK windows xp operating system.)

VB Notepad逼真记事本程序+源代码，界面和功能几乎和Windows自带的记事本一模一样。了解一下VB的字符处理功能，对学习VB是有必要的。本记事本程序运行需要两个控件：Richtx32.ocx和Comdlg32.ocx，已放入压缩包内。

我做了一些 qt 离散度的脚本接口类。它的方便的如果你让 Qt 编程，以使用非基于 QObject 的类，如 QColor、 QPoint，等等。我希望它能帮助你，使你的编程容易。