yuqunsuanfa

前段时间在北大OJ平台上做的几个题目，主要用到几个知识点...(OJ platform some time ago at the university to do the subject ...)

Product life research paper

应用matlab 调用epanet 软件进行管网水力学计算。(Application to call Matlab epanet software pipe network hydraulic calculation.)

计算随机薄膜厚度的反射率和透射率，利用传输矩阵编写(Random film thickness calculated reflectance and transmittance, written using the transfer matrix)

psasp和matlab交互仿真接口程序(psasp and matlab interactive simulation interface program)

说明：  用于信号检测，主要对输油管道产生的压力信号和流量信号进行辨识，进而判断管道是否发生泄露。(For signal detection, the main pressure on the pipeline flow of signals and signal recognition, and thus to determine whether pipeline leak happened.)

牛顿拉夫逊法编制的潮流计算程序，很实用，是很好的学习资料(Newton-raphson method of power flow calculation program, very practical, is a very good learning materials)

you can pass C++ objects between different MEX functions without first converting to a MatLab compatible format(you can pass objects between different C ME X functions without first converting to a MatLa b compatible format)

1、基本要求： (1)频率测量 测量范围：1HZ~1MHZ，信号为方波、正弦波；幅度为0.1V~5V； 测量误差： 0.1 （以NFC—10A为准）。 (2)周期测量 测量范围：1HZ~1MHZ，信号为方波、正弦波；幅度为0.1V~5V； 测量误差：， 0.1 （以NFC—10A为准）。 (3)脉冲宽度测量： 测量范围：脉冲宽度不超过100μS，信号为脉冲波，幅度为0.1V~5V； 测量误差： 0.1 。 (failed to translate)

说明：  。基于此本文提出一种利用Microsoft Access数据库实现VB与Matlab数据交换的方法,在程序设计中可充分利用两种软件的优势,可以大大缩短软件开发周期,为 含复杂数学计算的可视化软件设计提供了一种可选的方案。(A new method is proposed in this paper to realize data communication between VB and Matlab based on Microsoft Access. It provides a good solution to develop the Visual numerical computing software)