Tide

java电信管理系统，针对电信业务的收费，查询，和业务管理功能。(java Telecommunications Management System)

本程序为扩展有限元程序，可以模拟裂纹扩展过程，如果内置裂纹开裂速率，可以进行试件疲劳寿命预测。(This program is an extended finite element program, which can simulate the crack propagation process and predict the fatigue life of specimens if the crack rate is in place.)

艾特同学录配套留言本(accolades website supporting the message)

在文件qiexian.m中输入两个摩尔圆的坐标即可画出莫尔圆，并求出两圆的切线(In the file qiexian.m, enter the moire circle with the coordinates of two Moore circles, you can find the tangent of the two circle.)

说明：  大学高等数学（同济版）的latext编程课件，可供使用者修改(Latxt Programming Courseware of Higher Mathematics (Tongji Edition) for Users to Modify)

包含多种MATLAB拓扑优化程序，运用SIMP、渐进结构优化方法实现结构的拓扑优化。(A variety of MATLAB topological optimization procedures are included, and the topology optimization of the structure is realized by using SIMP and progressive structural optimization.)

说明：  refprop9.1是一款用于制冷剂物性查询软件，可用于工质参数的调用(RefProp 9.1 is a refrigerant physical properties query software, which can be used to call refrigerant parameters.)

全国公交车系统,可查询线路和车站, 寻找转车路线 (National Bus system will be able to access lines and stations, for interchange route)

说明：  恒压变频供水，实现供水的恒压变频，可以恒压供水，并且可以通过变频器节能(niceConstant voltage and frequency conversion water supply can realize constant voltage and frequency conversion of water supply, water supply can be constant pressure, and energy saving can be achieved through frequency converter.)

用于计算多普勒频移的函数，MATLAB语言，挺好用。(The function for calculating Doppler frequency shift, MATLAB language, is very useful.)