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《电力可靠性技术与管理培训教材》
说明： 电力系统可靠性教材，电力系统可靠性评估分析(Power System Reliability Textbook, Power System Reliability Assessment and Analysis)
- 2020-06-22 06:20:02下载
- 积分：1
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nannvshengshibie
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.)
- 2009-04-12 16:23:04下载
- 积分：1
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LiteOS20141118.pdf
华为lite os 说明文档，帮助开发 IOT(this is huawei lite os for IOT doc)
- 2016-04-01 11:44:19下载
- 积分：1
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rili
Jquery 编写的日历代码非常好用，绝对值得一试。(Jquery rili)
- 2017-05-31 16:09:31下载
- 积分：1
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codeblocks
codeblokes使用教程，主要适用于初学者，关于变量定义等(codeblokes tutorials, mainly for beginners, on variable definitions, etc.)
- 2014-11-07 21:56:11下载
- 积分：1
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poinandmerory
详细讲诉了指针和空间的关系,是很好的英文学习资料(describe the point and mermory in detail)
- 2013-02-25 20:57:18下载
- 积分：1
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OPNET_network_simulation
opnet网络仿真 清华出的，陈敏编辑，学习opnet的必读的书。主要是opnet Modeler Tutorials 翻译，对于看英语头疼的人来说，阅读非常容易~(OPNET_network_simulation)
- 2010-02-19 00:25:54下载
- 积分：1
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使用Excel和VBA的高级财务建模英文版
图书使用Excel和VBA的高级财务建模英文版(Advanced Modeling in Finance Using Excel and VBA)
- 2020-06-19 12:00:06下载
- 积分：1
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Interference_Analysis_and_Reduction_for_Wireless_
Interference Analysis and Reduction for Wireless Systems.pdf
- 2010-01-17 19:40:21下载
- 积分：1
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ubuntu
ubuntu系统性能优化简单教程
关闭最小化动画
长期使用 Ubuntu 后有一种感觉，那就是在 GNOME 中启动应用程序时，速度越来越慢。在 Ubuntu 英文论坛那边看到一个技巧，可以对这个问题起到改善作用。打开 /etc/hosts 文件，可以看到类似下面的内容：
。。。。。。。。。。。。(Ubuntu system performance optimization simple tutorial
Close minimize animation
After long-term use of Ubuntu, it is a kind of feeling in the GNOME started in the application, the more and more slow. In English BBS there see a Ubuntu on this problem technique that can play improved. Open/etc/hosts file, can see similar the following content:
)
- 2011-05-17 20:20:51下载
- 积分：1
