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用python爬虫抓站的一些技巧总结
说明: 用python爬虫抓站的实用技巧,学习python爬虫抓站的实用知识(Practical Skills of Python Crawler Grab Station)
- 2019-03-18 09:26:51下载
- 积分:1
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paq1
This paper describes the PAQ1 lossless data compression program. PAQ1 is an arithmetic encoder using a weighted average of five bit-level predictors.
- 2015-08-06 21:36:40下载
- 积分:1
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CPP
C++专有名词中英对照表,珍藏很久了,需要的拿去(C++ chinese english)
- 2014-06-26 02:17:44下载
- 积分:1
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直流输电(浙江大学发电教研组直流输电科研组)
说明: 该书于2017年2月由机械工业出版社正式出版,凝聚了徐政教授和近20名团队成员多年来的心血.第二版在第一版的基础上,有了较大篇幅的扩充,在系统性和完整性方面得到了加强,符号和术语也得到了进一步规范.该书系统讲述了柔性直流输电的理论和应用.内容包括柔性直流输电系统的特点和应用,(The book was officially published by the Machinery Industry Press in February 2017, and it has gathered the hard work of Professor Xu Zheng and nearly 20 team members for many years. The second edition has a larger expansion on the basis of the first edition. The system and integrity have been strengthened, and the symbols and terminology have been further standardized. The book system describes the theory and application of flexible DC transmission. The content includes the characteristics and applications of flexible DC transmission systems.)
- 2020-05-29 14:28:34下载
- 积分:1
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Python灰帽子-黑客与逆向工程师的Python编程之道
说明: 想学习黑客技术,进行逆向编程,同时提高编程技术的可以下载学习(Want to learn hacker technology, reverse programming, while improving the programming technology can be downloaded to learn)
- 2019-05-20 10:32:21下载
- 积分:1
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31767638usb
直流电机常用驱动电路,非常有用的电机驱动程序与电路,对于开发电机者非常有借鉴价值。(DC motor drive circuit used, very useful program with the motor drive circuits, motors for developers who are very reference value.)
- 2010-03-05 09:53:01下载
- 积分:1
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数值分析.Timothy+Sauer.part1
说明: 本书的内容包括求解方程组、插值、微分方程及一系列。每章都有实例以帮助读者了解相关应用领域。并有一些matlab的代码,和题目的参考答案。(The content of this book includes solving equations, interpolation, differential equations, and a series. Each chapter has examples to help readers understand the relevant application areas. And there are some matlab codes, and reference answers to the questions.)
- 2020-02-18 14:34:24下载
- 积分:1
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sdk
海康SDK包,非常好用,里面他的流程写的很详细,你二次开发的时候可以完全参照他上面的写,谢谢。(sdk)
- 2010-10-16 23:04:32下载
- 积分:1
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DynamicPowerQualityTestingTechnology
本文首先介绍了有源电力滤波器的基本结构和工作原理,并对一些常规的谐波电流检测方法的优缺点进行了比较。其次,针对传统的谐波电流检测方法的缺陷,提出将神经网络与基于噪声抵消原理的自适应谐波检测相结合,利用径向基函数运算量小、收敛快、无局部极小值等优点,构造了一种基于径向基函数神经网络的谐波电流检测方法,仿真结果表明该检测方法具有很好的动态响应及畸变电流检测精度。最后,设计了一套实验系统,对本文所采用的系统方案进行了实验验证。仿真表明,本文所采用的有源电力滤波器检测系统方案切实可行,能够较好地实现动态检测谐波和无功功率的目的。 (This paper, firstly, introduces the basic structure and principle of APF, and then makes comparison among some conventional harmonics detections methods. Secondly, contraposes the limitation of the traditional harmonic current detecting method based on neural network, presents the method that combines the neural network and auto adaptive harmonic current detecting method based on the principle of noise each other eliminating.As the characteristics that are small calculative quantity, fast converge, without local minimal point of Redial Basis Function (RBF), this dissertation forms a new harmonic current detecting method based on RBF. The simulation results show that the method has many advantages, such as good dynamic response, high accuracy. At last, A system is designed to verify the proposed APF scheme .The results of simulation show that the proposed APF scheme is practical and can detect harmonics and reactive power effectively. )
- 2009-05-03 10:26:45下载
- 积分:1
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1N5822
肖特基二极管使用说明,很详细的,一定好用(Schottky diodes for use, very detailed, must use)
- 2020-12-23 11:29:07下载
- 积分:1