swiss roll

Concurrent Skip List Map Test for Andriod.

一个CAsyncSocket扩展类的例子。 实现了从指定的服务器和端口获得TCP数据流。不过现在可能程序中指定的服务器已经关闭了，不过代码还是可以看看的。-An example of CAsyncSocket extended class implements the function to get TCP data stream from a dedicated server and port.Perhaps,the server using in code has been closed,but the code has some value to view.

采用差分阈值法对心电信号QRS波进行特征提取的matlab程序。,Differential threshold method QRS wave of ECG feature extraction of matlab program.(A matlab program for feature extraction of QRS wave of ECG signal by differential threshold method is presented.)

用matlab仿真零均值高斯白噪声通过低通带通滤波器前后特性，程序完善，结果与理论值非常接近(The zero mean white Gauss noise is simulated by MATLAB, and the program is perfect through the low pass bandpass filter. The result is very close to the theoretical value.)

说明：  计算电力系统的连锁故障的文件，用来计算电力系统的连锁故障(A document for calculating cascading failures of power system, which is used to calculate cascading failures of power system)

轨道角动量OAM雷达散射三维辐射方向图，(3D radiation pattern of OAM radar)

一个用c++写的ado数据库连接作品 对初学者有一定的参考作用 主要是应用了mfc类库的知识 希望对大家有参考作用(A with c++ to write the ado database connection works for beginners of some reference value is applied knowledge mfc class library reference for all of us hope that the role of)

黑客界的《圣经》——How to become a hacker是经典的计算机书籍，里面包含的成为黑客的理论非常全面，对软件研发人员非常有用(Hacker community bible How to become a hacker is a classical computer books, containing a very comprehensive the hacker s theory, is very useful for software developers)

对载波相位平滑伪距的原理和数据预处理进行了探讨,给出提高其定位精度的处理方法和流程。通过 两个算例得到如下结论:对C1和P2码进行相位平滑可有效提高伪距定位精度,较长时间观测定位精度可达1 m 左右,利用精密星历改进后,平滑伪距的定位精度可达0. 5 m左右 对P1和P2码进行相位平滑对定位精度提高不 大,较长时间观测平滑前后的定位精度均可达到0. 6 m,利用精密星历改进后,精度可达0. 3 m 在动态测量后处理 中,绝大部分历元利用精密星历结合相位平滑的定位精度可达2 m。 (The principle and data preprocessing ofcarrier smoothed pseudorange are discussed and themethod which can improve the positioning accuracy and its flow are given.W ith thismethod two computation examples are made.The results show tha:t 1)the accuracy can be improved efficiently by using smoothed C1and P2pseudorange in static data processing, the accuracy can reach 1m if the time is long and can attain 0. 5m if the precise ephem- eris is taken 2)the accuracy can be boosthardly by using smoothed P1and P2pseudorange, but the accuracy can be improved from 0. 6m to 0. 3m if the time is long enough and the precise ephemeris isused 3)mostepochs can reach to the accuracy of2 m precision in kinematic positions if the smoothed code and precise ephemeris are uti- lized. )

Easy expression calculator for windows phone 7