CAREWELL

利用差分参考站和用户相对于导航卫星位置不同,引起了电波穿越电离层处的垂直TEC和角度不同是产生这种残差的主要原因,提出了一种改进的伪距差分算法并给出了定位算法。(Using differential reference station and the user with respect to the different navigation satellite position, causing the radio wave through the ionosphere at vertical TEC and angle of different residuals main reason proposed an improved pseudorange differential algorithm and gives positioning algorithm.)

GIS算法课件的第一章:算法设计和分析，绝对适合GIS新手(The first chapter GIS algorithm courseware: algorithm design and analysis, and is suitable for novice GIS)

网络计时器,很不错的VB源码，适合VB爱好者学习研究。(Network timer, a very good VB source code for VB enthusiasts to learn.)

It s email spammer, I often use it to attack back spam mail

采用vb6.0编写，数据库采用access，通过这两个工具实现手动组卷和生成试卷( Using vb6.0 writing, using access, for manual test paper and the papers generated by these two tools)

Visual Basic 学习的例子 Visual Basic 学习的例子(Examples of learning Visual Basic)

得到系统进程列表创建和关闭进程，修进程优先级(get process)

渐变背景,在窗体中从上至下依次绘制多个矩形，使它们的填充色从蓝变化到黑，就能很好地模拟出渐变效果(graded background, in which top-down windows were drawing more than rectangular, filling their color changes from blue to black. it will be able to simulate effects of graded)

Sample code in VB.NET for calculate and check CRC (Modbus specification). Supported both string format (like MSComm) and bytes array(like DCB).

VB与EXCEL精华 VB与EXCEL精华 VB与EXCEL精华(VB and Excel essence of the essence of VB and Excel and VB VB and Excel essence of the essence of VB and Excel Excel cream)