Lua程序设计（第2版）中文

几篇关于机器学习的PPT课件。A few PPT coursewares about machine learning.(A few PPT coursewares about machine learning.)

本文通过对男性和女性声音的语音特征的研究，发现男女声的基音频率存在较大的差异，并设计了基于基音频率分析的男女声识别系统。男女声识别系统由以下三个模块电路构成：话筒放大器，低通滤波器，半波整流电路，单片机测量控制模块。话筒放大器采用NE5532P音前置芯片，对语音信号进行放大；八阶低通滤波器MAX293完成基音信号的提取；单片机STC12C5410AD实现频率测量和控制输出功能。经仿真与电路实测，男女声的识别效果良好。(In this paper, the voices of male and female voice characteristics of the findings of a study of the fundamental frequency of the sound of men and women there is a big difference, and the design of frequency analysis based on the pitch of the voice recognition system for men and women. Voice Recognition System for men and women from the circuit the following three modules: the microphone amplifier, low-pass filter, half-wave rectifier circuit, single-chip measurement control module. NE5532P sound using the microphone pre-amplifier chip amplification of voice signals eight MAX293-order low-pass filter to complete the extraction of pitch signal STC12C5410AD single-chip realization of the frequency of measurement and control output. By circuit simulation and measurement, the identification of male and female voices well.)

说明：  动态域名申请、架WEB服务器(APACHE)、FTP服务器(serv-u)、Imail邮件安装、设置、ActivePerl安装设置、安装CGI&雷傲论坛等全图文的指南 (dynamic domain name applications, Web-server (APACHE), FTP server (serv-u), Imail mail installation, setup, ActivePerl installation settings, the installation of CGI Forum mine proud of the entire transmission Guide)

SIMULATION OF PACKET DATA NETWORKS USING OPNET In this paper we describe the use of the OPNET simulation tool for modeling and analysis of packet data networks.

说明：  介绍了一种用于心电监护的数字滤波算法，对滤波器的设计，包括滤波原理、整系数数字滤波器 的波型特征、实现方框图及10 点平均数字滤波器进行了分析，并给出心电信号的滤波效果图。实验结果表明， 该算法能有效滤除基线漂移和工频干扰，算法简单实用。(A new method for the introduction ECG digital filtering algorithm, the design of filters, including filtering principle, the whole coefficient of the wave digital filter characteristics, block diagram and realize an average 10-point digital filters are analyzed, and gives ECG filtering effect of Fig. Experimental results show that the algorithm can effectively filter out the baseline drift and power-line interference, the algorithm is simple and practical.)

非常好的介绍关于javascript的资料(very good book for javascript)

《Functional Data Analysis with R and MATLAB》（R和Matlab环境泛函数据分析）第二版电子书(Functional Data Analysis with R and MATLAB Second Edition E-book)

一本以python为学习语言的机器学习书，内容详细，很适合python初学者学习(A machine learning book based on Python for learning language is detailed and suitable for Python beginners to learn.)

薛培峰用FVCOM模式模拟长江盐水入侵的案例，很不错，很经典(Xue Peifeng FVCOM simulated by salt water intrusion in the case of the Yangtze River, is very good, very classic)

函数信号发生，能产生频率可调的方波发生电路(The function semaphore takes place)