电子时钟

《交直流电力系统仿真技术》对以南方电网为典型的交直流混合电力系统仿真技术进行了总结和探索，《交直流电力系统仿真技术》是我国第一本系统地介绍和分析交直流电力系统仿真技术的专著(" AC-DC power system simulation technology" for China Southern Power Grid to typical AC-DC hybrid power system simulation technology are summarized and exploration, " AC-DC power system simulation technology," this is the first systematic presentation and analysis of AC and DC power system simulation technology monograph)

信息隐藏里 large payload 源码，很精简，经过数据验证-Information hidden in large payload source, be concise, through data validation

这是一个java写的俄罗斯方块的程序，使用frame写的，而不是传统的applet，希望大家玩过之后给点意见 lzz_zsu_2005@yahoo.com.cn-This a java Russian ideographic written procedures, the use of the frame was made, rather than the traditional applet hope that after we tried to point lzz_zsu_2005@yahoo.com.cn

通信原理第六版(国防+曹丽娜+樊昌信)课本(Communication Theory Sixth Edition (Defense+ Cao Lina+ Fan Changxin) Textbook)

病态线性方程组的一些求解算法，包括传统的CG，CGLS，CGNR，LSQR和较新的OVM算法，它们都是一些迭代算法。(Some solving algorithms for ill conditioned linear equations include conventional CG, CGLS, CGNR, LSQR, and newer OVM algorithms, all of which are iterative algorithms.)

Migration and compatibility guidelines for STM32 microcontroller applications

自编加学习的简单管理系统,希望指教-self increase learning simple management systems in the hope that the exhibitions

说明：  可以计算固定共振腔高度的互阻抗，超材料研究(Calculate acoustic impedance with fixed height)

说明：  DE+SVM的简单实现，通过准确率来优化SVM的参数，从而提高分类准确率(The simple implementation of DE+SVM optimizes the parameters of SVM through the accuracy, so as to improve the classification accuracy)

说明：  该代码主要是在ABAQUS软件平台上给特定的薄板一定的激励信号，用来激发超声导波模态的形成(Ultrasound guided wave excitation signal)