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CA认证 Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2

Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2.one approach to improving security was to encrypt multiple letters 3.the Playfair Cipher is an example 4.invented by Charles Wheatstone in 1854,but named after his friend Baron Playfair Playfair Key M ...
https://www.eeworm.com/dl/640/444418.html
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书籍 Spectrum+Sharing+Between+Radars

Radio frequency spectrum is a scarce and critical natural resource that is utilized for many services including surveillance, navigation, communication, and broadcast- ing. Recent years have seen tremendous growth in the use of spectrum especially by commercial cellular operators. Ubiquitous use of ...
https://www.eeworm.com/dl/522126.html
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数值算法/人工智能 a sub-cell WENO reconstruction method

We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimensio ...
https://www.eeworm.com/dl/509348.html
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书籍 Physical Layer Security in Wireless Communications

The ever-increasing demand for private and sensitive data transmission over wireless net- works has made security a crucial concern in the current and future large-scale, dynamic, and heterogeneous wireless communication systems. To address this challenge, computer scientists and engineers have trie ...
https://www.eeworm.com/dl/522054.html
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技术资料 移植到Symbian平台C-C.开放移动开发.rar

I originally started writing this book as part of the Symbian Press Technology series back in May 2008. Since that time, a lot has changed in the mobile software world, particularly for those working with Symbian devices. The book you now hold in your hands is published by the Symbian Foundation usi ...
https://www.eeworm.com/dl/899253.html
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论文 锂硫电池隔膜

Lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical problems is the shuttling of soluble polysulfides between electrodes, resulting in rapid capacity fading. Here, we present ...
https://www.eeworm.com/dl/516136.html
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技术书籍 LatentSVM论文

The object detector described below has been initially proposed by P.F. Felzenszwalb in [Felzenszwalb2010]. It is based on a Dalal-Triggs detector that uses a single filter on histogram of oriented gradients (HOG) features to represent an object category. This detector uses a sliding window approac ...
https://www.eeworm.com/dl/501198.html
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论文 基于频率插值的4.0kbps 语音编码器的性能和设计(英文)

The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capabi ...
https://www.eeworm.com/dl/517138.html
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技术资料 基于红外距离传感器的特雷门琴设计

特雷门琴是一种音效极佳的乐器,其传统的模拟电路设计十分复杂,价格高昂。采用数字化的处理方式设计特雷门琴,该系统由单片机、数模转换模块、红外测距模块、音频播放及数字音频处理模块等组成,造价低廉,易于上手操作,可以发出各种音色不同音调的声音。该设计用较低成本制作特雷门琴这一有趣的乐器,具有很大的创新性和实用性 ...
https://www.eeworm.com/dl/894740.html
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无线通信 差分電路中單端及混合模式S-參數的使用

Single-Ended and Differential S-Parameters Differential circuits have been important incommunication systems for many years. In the past,differential communication circuits operated at lowfrequencies, where they could be designed andanalyzed using lumped-element models andtechniques. With the freque ...
https://www.eeworm.com/dl/510/36562.html
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