linux 内核 api （PDF文档）

编写游戏的初步知识，我真受不了你！-prepare preliminary knowledge of the game, I really can not stand you!

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新型数控电流源的设计：无解压密码，介绍了一种具有开路和过载保护功能的数字电流源-new NC current source design : no extracting passwords, introduces a clear traffic and overload protection with the functions of digital current source

数字水印技术近年来得到了较大的发展,基于变换域的水印技术是目前研究的热点。该文提出了一种基于DCT域的自适应水印算法。实验结果表明,这种算法具有良好的性能,实现的水印具有不可见性,而且具有较好的鲁棒性。 -digital watermarking technology in recent years has been substantial development, based on the transform domain watermarking technology is a hot topic at present. The paper presents a DCT-based Adaptive watermarking algorithm. Experimental results show that the algorithm has good performance, the watermark is invisible, but also better robustness.

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7281读写C51源程序（键盘与显示），及其相关资料，偶强两天调出来的 与大家共享-7281 to read and write source code C51 (keyboard and display), and related information, even strong two days out of tune with the U.S. share

语音技术实现的源代码(C#)-Voice technology to achieve the source code (C#)

应用背景Windows系统，安装了perl环境。可以根据您的搜索条件或者提供的GI号，从NCBI上自动下载超大序列。能自动下载超过50000条以上的核酸或蛋白序列。有时候需要根据自己提供的GI号从NCBI上下载需要的基因或蛋白序列，这个小程序可实现自动下载。在windows操作系统下即可轻松完成，直接双击程序，自动运行下载序列。关键技术放在任何文件夹双击运行。相当于在NCBI首页上查询某物种的基因或蛋白序列，然后自动下载保存为fasta格式。根据使用目的修改脚本。使用方法如下：查询核酸序列：NCBI--左上选Nucleotide--右边输入要查询的物种和限制条件，比如番茄tomato mRNA，出来很多序列，在右下方Search details处，可看到查询条件其实是 ("Solanum lycopersicum"[Organism] OR tomato[All Fields]) AND mRNA[All Fields]，复制这个查询条件，粘贴到脚本的第12行$query = ""Solanum lycopersicum"[orgn]"的单引号里面覆盖"Solanum lycopersicum"[orgn]，脚本14行$url = $base . "esearch.fcgi?db=protein&term=$query&usehistory=y";里面的db=后面的protein改成Nucleotide，32行$efetch_url = $base ."efetch.fcgi?db=protein&WebEnv=$web"里面的protein也改成Nucleotide。修改这三处之后即可查询得到fasta格式序列。如果查询蛋白序列，按上述方法得到查询条件粘到$query后面，把后面的库db改成protein。查询其它库依此类推。

本文主要介绍以EP1C3/EP1C6芯片进行十字路口的交通控制灯的设计，该系统可控制2个方向的红、黄、绿三盏灯,让其按特定的规律进行变化。用EP1C3/EP1C6作为交通控制灯的主控芯片，采用VHDL语言编写控制程序，利用MAX+PlusⅡ对设计结果进行仿真，发现系统工作性能良好。据此设计而成的硬件电路,也实现了控制要求。该设计展示了VHDL语言的强大功能和优秀特性。-This paper introduces the crossroads EP1C3/EP1C6 chip design of traffic control lights, the system can control the direction of two red, yellow, green, three lights, let the law be changed according to the specific. As a traffic control light with EP1C3/EP1C6 master chip, using VHDL language control program, using MAX+ Plus Ⅱ design simulation results and found that system works good performance. Accordingly designed with the hardware circuit, also achieved control requirements. The design shows the power of VHDL language and excellent features.

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