NGA

实用的电子书《偏微分方程的MATLAB解法》，是一部介绍常偏分方程的经典著作，偏微分方程必常微分方程更复杂，是研究非线性科学的必备工具书。(Practical e-book )

说明：  常规的单载波调制技术在带宽有限的测井电缆上的低传输速率制约着成像测井技术的发展。在分析测井 电缆传输特性和 OFDM 技术原理的基础上 ,设计了一种基于 OFDM 技术的测井电缆高速数据传输系统 ,并介绍了 基于 OFDM 技术的测井电缆高速数据传输系统的参数设计和工作原理 ,给出了不同长度测井电缆上的测试结果。 电缆实测结果表明 ,在 7 000 m长的测井电缆上 ,基于OFDM 技术的测井电缆高速数据传输系统可获得900 kbit / s 以上的数据传输速率和低于 5E28 的误码率。当变压器的接入模式为 Mode2II时 ,系统最高的数据传输速率可达到 1. 1 Mbit/ s。(To solve t he low data t ransmission rate problem in t he conventional single car rier mod2 ulation met hod for logging cable and enhance t he data t ransmission rate , a new data t ransmission system with high data t ransmission rate for logging cable is propo sed , which is based on t he Or2 t hogonal Frequency Division Multiplexing (OFDM) technology. The working principle of OFDM modem and t he procedure of data t ransmission system are al so presented and lot s of test s are car2 ried out on logging cables with different lengt hs. It is verified that t he data t ransmission rate can reach 900 kbit/s on 7 000 meter s logging cable wit h bit er ror rate (BER) lower t han 5E28 , and t he maximum data t ransmission rate is 1. 1 Mbit/s under Mode2II of t he t ransformer .)

采用MORISON方程基于MATLAB计算小直径波浪力(small diameter waveforce)

将DE405数据文件转换为Matlab的.mat文件的函数，方便Matlab的读取(DE405 data file is converted to the Matlab MAT file function to facilitate the Matlab reads)

To calculate the priodogram for each window

说明：  可以实现聚类，结合神经网络、支持向量机等用于故障诊断。(Clustering can be achieved, combined with neural networks, support vector machines for fault diagnosis.)

机器人的路径算法（人工智能§自动规划§用于模拟机器人规划的模拟软件 [zhangzhiguang2.rar] - 用势场法的原理实现的vc搜索最短路径程序，改进后的势场法，实用。 (机器人的路径算法（)

在Matlab的统计和优化工具箱中有相关的处理函数(We begin our tour of MATLAB by considering the basic structure of the user interface. We’ll learn how to enter commands, create fi les, and do other sorts of mundane tasks that we’ll need to know before we can tackle solving mathematics problems.)

Computes driving functions..hope you like it

图像分割代码，包括种子生长法和阈值法，是对细胞进行分割，二值图(Image segmentation code, including seed growth method and threshold method, is cell division, binary image)